UnifiedWebPreferences.yaml

# Copyright (c) 2020-2023 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
# THE POSSIBILITY OF SUCH DAMAGE.

# Web preferences are assigned a `status` which implies a default value and
# controls the interfaces where the preference is declared.
#
# == Web Platform Features ==
# unstable::
#   Feature in active development. Unfinished, no promise it is usable or safe.
#   OFF by default.
# testable::
#   Feature in active development. Stable enough for testing, but not ready to ship.
#   OFF by default. Enabled in test infrastructure only.
# preview::
#   Ready to be used in beta contexts like Safari Technology Preview.
#   OFF by default. May be enabled automatically by clients.
# stable::
#   Ready for general use, but should be able to be toggled to support
#   debugging, A/B testing.
#   ON by default. Some platforms may deviate from default behavior due to
#   support or needed dependencies.
# mature::
#   Already in general use, with no UI to toggle. Features in this status may be
#   cleaned up and removed altogether.
#   ON by default. Some platforms may deviate from default behavior due to
#   support or needed dependencies.
#
# == Developer Features ==
# developer::
#   Tools for web developers, not part of a feature that will ever be enabled
#   for end users.
#   OFF by default.
# internal::
#   Tools for debugging the WebKit engine. Not generally useful to web developers.
#   OFF by default.
#
# == Embedder Controls ==
# embedder::
#   Adjusts WebKit behavior for embedding application needs. Not part of a
#   web platform feature or a "mature" feature intended to be always-on.
#   ANY default value.
#
# == Defaults Overridable ==
#  When features are declared with "defaultsOverridable: true", platform user
#  defaults may override a default value at runtime, using the preference
#  name prefixed with "WebKitDebug".
#
# FIXME: Currently, default values are unchecked. We should audit and refactor
# features so that their defaults agree with their status's definition, and use
# the generator to enforce this in the future.

AVFoundationEnabled:
  type: bool
  status: embedder
  getter: isAVFoundationEnabled
  humanReadableName: "AVFoundation"
  humanReadableDescription: "Enable AVFoundation"
  webcoreBinding: DeprecatedGlobalSettings
  condition: USE(AVFOUNDATION)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      "PLATFORM(WATCHOS)": false
      default: true

AcceleratedCompositingEnabled:
  type: bool
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

AcceleratedCompositingForFixedPositionEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      PLATFORM(IOS_FAMILY): true
      default: false
    WebCore:
      PLATFORM(IOS_FAMILY): true
      default: false

AcceleratedDrawingEnabled:
  type: bool
  status: internal
  defaultsOverridable: true
  humanReadableName: "GraphicsLayerCA accelerated drawing"
  humanReadableDescription: "Enable GraphicsLayerCA accelerated drawing"
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY) && !PLATFORM(IOS_FAMILY_SIMULATOR)": true
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

AcceleratedFiltersEnabled:
  type: bool
  status: unstable
  webcoreOnChange: setNeedsRelayoutAllFrames
  humanReadableName: "Accelerated Filter Rendering"
  humanReadableDescription: "Accelerated CSS and SVG filter rendering"
  condition: USE(CORE_IMAGE)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AccentColorEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Accent Color"
  humanReadableDescription: "Enable accent-color CSS property"
  defaultValue:
    WebKitLegacy:
      "PLATFORM(COCOA)" : true
      default: false
    WebKit:
      "PLATFORM(COCOA) || PLATFORM(GTK) || PLATFORM(WPE)": true
      default: false
    WebCore:
      "PLATFORM(COCOA) || PLATFORM(GTK) || PLATFORM(WPE)": true
      default: false

AccessHandleEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "AccessHandle API"
  humanReadableDescription: "Enable AccessHandle API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA)" : true
      default: false
    WebCore:
      "PLATFORM(COCOA)" : true
      default: false

AggressiveTileRetentionEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AllowContentSecurityPolicySourceStarToMatchAnyProtocol:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      PLATFORM(IOS_FAMILY): WebKit::defaultAllowContentSecurityPolicySourceStarToMatchAnyProtocol()
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AllowCrossOriginSubresourcesToAskForCredentials:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AllowDisplayOfInsecureContent:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: WebKit::defaultAllowDisplayOfInsecureContent()
    WebKit:
      default: false
    WebCore:
      default: false

AllowFileAccessFromFileURLs:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: false
    WebCore:
      default: true

AllowMediaContentTypesRequiringHardwareSupportAsFallback:
  type: bool
  status: embedder
  humanReadableName: "Allow Media Content Types Requirining Hardware As Fallback"
  humanReadableDescription: "Allow Media Content Types Requirining Hardware As Fallback"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      "PLATFORM(COCOA)": true
      default: false
    WebCore:
      default: false

AllowMultiElementImplicitSubmission:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitAllowMultiElementImplicitFormSubmissionPreferenceKey
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AllowRunningOfInsecureContent:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: WebKit::defaultAllowRunningOfInsecureContent()
    WebKit:
      default: false
    WebCore:
      default: false

AllowSettingAnyXHRHeaderFromFileURLs:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AllowTopNavigationToDataURLs:
  type: bool
  humanReadableName: "Allow top navigation to data: URLs"
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: false
    WebCore:
      default: false

AllowUniversalAccessFromFileURLs:
  type: bool
  humanReadableName: "Allow universal access from file: URLs"
  status: developer
  category: security
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: false
    WebCore:
      default: true

# FIXME: This is not relevent for WebKitLegacy, so should be excluded from WebKitLegacy entirely.
AllowViewportShrinkToFitContent:
  type: bool
  status: internal
  humanReadableName: "Allow Viewport Shrink to Fit Content"
  humanReadableDescription: "Allow the viewport shrink to fit content heuristic when appropriate"
  condition: PLATFORM(IOS_FAMILY)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

AllowWebGLInWorkers:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Allow WebGL in Web Workers"
  condition: ENABLE(WEBGL)
  defaultValue:
    WebKitLegacy:
      "ENABLE(WEBGL_IN_WORKERS)": true
      default: false
    WebKit:
      "ENABLE(WEBGL_IN_WORKERS)": true
      default: false
    WebCore:
      "ENABLE(WEBGL_IN_WORKERS)": true
      default: false

AllowsAirPlayForMediaPlayback:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitMediaPlaybackAllowsAirPlay
  condition: ENABLE(WIRELESS_PLAYBACK_TARGET)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

AllowsInlineMediaPlayback:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitMediaPlaybackAllowsInline
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultAllowsInlineMediaPlayback()
      default: true
    WebKit:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebCore:
      "PLATFORM(IOS_FAMILY)": false
      default: true

AllowsInlineMediaPlaybackAfterFullscreen:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultAllowsInlineMediaPlaybackAfterFullscreen()
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebCore:
      default: true

AllowsPictureInPictureMediaPlayback:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultAllowsPictureInPictureMediaPlayback()
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebCore:
      default: true

AlternateFormControlDesignEnabled:
  type: bool
  status: embedder
  condition: PLATFORM(IOS_FAMILY)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AlternateFullScreenControlDesignEnabled:
  type: bool
  status: embedder
  condition: PLATFORM(IOS_FAMILY)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "HAVE(UIKIT_WEBKIT_INTERNALS)": true
      default: false
    WebCore:
      default: false

AlternateWebMPlayerEnabled:
  type: bool
  status: unstable
  category: media
  humanReadableName: "Alternate WebM Player"
  humanReadableDescription: "Enable Alternate WebM Player"
  condition: ENABLE(ALTERNATE_WEBM_PLAYER)
  defaultValue:
    WebKitLegacy:
     default: false
    WebKit:
      default: false
    WebCore:
      default: false

AlwaysZoomOnDoubleTap:
  type: bool
  status: internal
  humanReadableName: "DTTZ always"
  humanReadableDescription: "Double taps zoom, even if we dispatched a click anywhere"
  webcoreBinding: none
  condition: PLATFORM(IOS_FAMILY)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

AnimatedImageAsyncDecodingEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

AppBadgeEnabled:
  type: bool
  status: unstable
  category: dom
  humanReadableName: "App Badge"
  humanReadableDescription: "Enable App Badge"
  condition: ENABLE(BADGING)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AppHighlightsEnabled:
  type: bool
  status: unstable
  category: css
  humanReadableName: "App Highlights"
  humanReadableDescription: "Enable App Highlights"
  condition: ENABLE(APP_HIGHLIGHTS)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AppleMailPaginationQuirkEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      PLATFORM(MAC): WebKit::defaultAppleMailPaginationQuirkEnabled()
      default: false
    WebCore:
      default: false

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely (though we should still set the default value to false when initializing settings).
ApplePayCapabilityDisclosureAllowed:
  type: bool
  status: embedder
  condition: ENABLE(APPLE_PAY)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely (though we should still set the default value to false when initializing settings).
ApplePayEnabled:
  type: bool
  status: embedder
  condition: ENABLE(APPLE_PAY)
  defaultValue:
    WebKitLegacy:
      "ENABLE(APPLE_PAY_REMOTE_UI)": true
      default: false
    WebKit:
      "ENABLE(APPLE_PAY_REMOTE_UI)": true
      default: false
    WebCore:
      "ENABLE(APPLE_PAY_REMOTE_UI)": true
      default: false

AriaReflectionForElementReferencesEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "ARIA Reflection for Element References"
  humanReadableDescription: "Enable ARIA reflection for attributes that refer to elements"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

AspectRatioEnabled:
  type: bool
  status: mature
  humanReadableName: "CSS Aspect Ratio"
  humanReadableDescription: "Enable aspect-ratio CSS property"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

AspectRatioOfImgFromWidthAndHeightEnabled:
  type: bool
  status: mature
  humanReadableName: "Aspect ratio of <img> from width and height"
  humanReadableDescription: "Map HTML attributes width/height to the default aspect ratio of <img>"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

# FIXME: This is on by default in WebKit2 PLATFORM(COCOA). Perhaps we should consider turning it on for WebKitLegacy as well.
AsyncClipboardAPIEnabled:
  type: bool
  status: mature
  humanReadableName: "Async clipboard API"
  humanReadableDescription: "Enable the async clipboard API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA) || PLATFORM(GTK)" : true
      default: false
    WebCore:
      default: false

AsyncFrameScrollingEnabled:
  type: bool
  status: internal
  webcoreOnChange: setNeedsRelayoutAllFrames
  humanReadableName: "Async Frame Scrolling"
  humanReadableDescription: "Perform frame scrolling off the main thread"
  exposed: [ WebKit ]
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "USE(NICOSIA)": true
      "PLATFORM(COCOA)": true
      default: false
    WebCore:
      default: false

AsyncOverflowScrollingEnabled:
  type: bool
  status: internal
  webcoreOnChange: setNeedsRelayoutAllFrames
  humanReadableName: "Async Overflow Scrolling"
  humanReadableDescription: "Perform overflow scrolling off the main thread"
  exposed: [ WebKit ]
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "USE(NICOSIA)": true
      "PLATFORM(COCOA)": true
      default: false
    WebCore:
      default: false

AsynchronousSpellCheckingEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AttachmentElementEnabled:
  type: bool
  status: embedder
  humanReadableName: "Attachment Element"
  humanReadableDescription: "Allow the insertion of attachment elements"
  webcoreBinding: DeprecatedGlobalSettings
  condition: ENABLE(ATTACHMENT_ELEMENT)
  defaultValue:
    WebKitLegacy:
      default: WebKit::defaultAttachmentElementEnabled()
    WebKit:
      default: false

AttachmentWideLayoutEnabled:
  type: bool
  status: embedder
  humanReadableName: "Attachment wide-layout styling"
  humanReadableDescription: "Use horizontal wide-layout attachment style, requires Attachment Element"
  condition: ENABLE(ATTACHMENT_ELEMENT)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AudioControlsScaleWithPageZoom:
  type: bool
  status: embedder
  category: media
  defaultValue:
    WebKitLegacy:
      "HAVE(UIKIT_WEBKIT_INTERNALS)": true
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebKit:
      "HAVE(UIKIT_WEBKIT_INTERNALS)": true
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebCore:
      "HAVE(UIKIT_WEBKIT_INTERNALS)": true
      "PLATFORM(IOS_FAMILY)": false
      default: true

AudioDescriptionsEnabled:
  type: bool
  status: preview
  category: media
  condition: ENABLE(VIDEO)
  humanReadableName: "Audio descriptions for video - Standard"
  humanReadableDescription: "Enable standard audio descriptions for video"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

AuthorAndUserStylesEnabled:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitAuthorAndUserStylesEnabledPreferenceKey
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  inspectorOverride: true
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

AutomaticLiveResizeEnabled:
  type: bool
  status: internal
  humanReadableName: "Enable Automatic Live Resize"
  humanReadableDescription: "Automatically synchronize web view resize with painting"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      "HAVE(UIKIT_WEBKIT_INTERNALS)": true
      default: false

BackgroundFetchAPIEnabled:
  type: bool
  status: testable
  category: networking
  humanReadableName: "Enable background-fetch API"
  humanReadableDescription: "Enable background-fetch API"
  exposed: [ WebKit ]
  condition: ENABLE(SERVICE_WORKER)
  defaultValue:
    WebCore:
      default: false
    WebKit:
      default: false

BackgroundWebContentRunningBoardThrottlingEnabled:
  type: bool
  status: unstable
  category: networking
  humanReadableName: "Enable background web content throttling via RunningBoard"
  humanReadableDescription: "Enable background web content throttling via RunningBoard"
  exposed: [ WebKit ]
  condition: PLATFORM(MAC) && USE(RUNNINGBOARD)
  defaultValue:
    WebCore:
      default: false
    WebKitLegacy:
      default: false
    WebKit:
      default: WebKit::defaultRunningBoardThrottlingEnabled()

BackspaceKeyNavigationEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebKit:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebCore:
      default: true

# FIXME: This is on by default in WebKit2. Perhaps we should consider turning it on for WebKitLegacy as well.
BeaconAPIEnabled:
  type: bool
  status: mature
  humanReadableName: "Beacon API"
  humanReadableDescription: "Beacon API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

BlobRegistryTopOriginPartitioningEnabled:
  type: bool
  status: unstable
  humanReadableName: "Partition Blob URL Registry"
  humanReadableDescription: "Partition Blob URL Registry by Top-Level Origin"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

BlockIOKitInWebContentSandbox:
  type: bool
  status: internal
  category: networking
  humanReadableName: "IOKit blocking in the WebContent sandbox"
  humanReadableDescription: "Block IOKit access in the WebContent sandbox"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

BlockMediaLayerRehostingInWebContentProcess:
  type: bool
  status: internal
  category: media
  humanReadableName: "GPU Process: Block Media Layer Re-hosting"
  humanReadableDescription: "GPU Process: Block Media Layer Re-hosting in WebContent process"
  condition: ENABLE(GPU_PROCESS)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

# We would have to partition BroadcastChannel based on PageGroups if we wanted to enable this for WebKitLegacy.
BroadcastChannelEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "BroadcastChannel API"
  humanReadableDescription: "BroadcastChannel API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

BroadcastChannelOriginPartitioningEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "BroadcastChannel Origin Partitioning"
  humanReadableDescription: "BroadcastChannel Origin Partitioning"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

BuiltInNotificationsEnabled:
  type: bool
  status: unstable
  category: dom
  humanReadableName: "Built-In Web Notifications"
  humanReadableDescription: "Enable built-in WebKit managed notifications"
  webcoreBinding: DeprecatedGlobalSettings
  condition: ENABLE(BUILT_IN_NOTIFICATIONS)
  defaultValue:
    WebCore:
      default: false
    WebKit:
      default: false

CFNetworkNetworkLoaderEnabled:
  type: bool
  status: unstable
  category: networking
  humanReadableName: "Experimental network loader"
  humanReadableDescription: "Enable experimental network loader"
  webcoreBinding: none
  condition: HAVE(NETWORK_LOADER)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

CSS3DTransformInteroperabilityEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS 3D Transform Interoperability"
  humanReadableDescription: "Enable 3D transform behavior that is specification-compliant but backwards incompatible"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSCascadeLayersEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Cascade Layers"
  humanReadableDescription: "Enable CSS Cascade Layers"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSColor4:
  type: bool
  status: mature
  humanReadableName: "CSS Color 4 Color Types"
  humanReadableDescription: "Enable support for CSS Color 4 Color Types"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSColorContrastEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS color-contrast()"
  humanReadableDescription: "Enable support for CSS color-contrast() defined in CSS Color 5"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSColorMixEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS color-mix()"
  humanReadableDescription: "Enable support for CSS color-mix() defined in CSS Color 5"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSContainIntrinsicSizeEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Contain Intrinsic Size"
  humanReadableDescription: "Enable contain-intrinsic-size CSS property"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSContainerQueriesEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Container Queries"
  humanReadableDescription: "Enable CSS Container Queries"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSContainmentEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Containment"
  humanReadableDescription: "Enable contain CSS property"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSContentVisibilityEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS Content Visibility"
  humanReadableDescription: "Enable CSS content-visibility"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSCounterStyleAtRuleImageSymbolsEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS @counter-style <image> symbols"
  humanReadableDescription: "Enable support for <image> symbols in CSS @counter-style rules"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSCounterStyleAtRulesEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS @counter-style"
  humanReadableDescription: "Enable support for CSS @counter-style rules"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSCustomPropertiesAndValuesEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Custom Properties and Values API"
  humanReadableDescription: "Enable CSS Custom Properties and Values API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSGradientInterpolationColorSpacesEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Gradient Interpolation Color Spaces"
  humanReadableDescription: "Enable custom interpolation in CSS gradients"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSGradientPremultipliedAlphaInterpolationEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Gradient Premultiplied Alpha Interpolation"
  humanReadableDescription: "Enable premultiplied alpha interpolated CSS gradients"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSIndividualTransformPropertiesEnabled:
  type: bool
  status: mature
  humanReadableName: "CSS Individual Transform Properties"
  humanReadableDescription: "Support for the translate, scale and rotate CSS properties"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSInputSecurityEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS Input Security"
  humanReadableDescription: "Enable input-security CSS property"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSLeadingTrimEnabled:
  type: bool
  status: preview
  category: css
  humanReadableName: "CSS leading-trim property"
  humanReadableDescription: "Enable leading-trim"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSMarginTrimEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS margin-trim property"
  humanReadableDescription: "Enable margin-trim CSS property"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSMotionPathEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Motion Path"
  humanReadableDescription: "Enable CSS Motion Path support"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSNestingEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Nesting"
  humanReadableDescription: "Enable support for CSS nesting https://www.w3.org/TR/css-nesting-1/"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSOMViewScrollingAPIEnabled:
  type: bool
  status: unstable
  category: css
  humanReadableName: "CSSOM View Scrolling API"
  humanReadableDescription: "Implement standard behavior for scrollLeft, scrollTop, scrollWidth, scrollHeight, scrollTo, scrollBy and scrollingElement."
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultCSSOMViewScrollingAPIEnabled()
      default: true
    WebCore:
      default: false

CSSOMViewSmoothScrollingEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSSOM View Smooth Scrolling"
  humanReadableDescription: "Enable DOM API and CSS property for 'smooth' scroll behavior"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: false

CSSPaintingAPIEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS Painting API"
  humanReadableDescription: "Enable the CSS Painting API"
  condition: ENABLE(CSS_PAINTING_API)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "ENABLE(EXPERIMENTAL_FEATURES)": true
      default: false
    WebCore:
      default: false

CSSRelativeColorSyntaxEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Relative Color Syntax"
  humanReadableDescription: "Enable support for CSS Relative Color Syntax defined in CSS Color 5"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSRhythmicSizingEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS Rhythmic Sizing"
  humanReadableDescription: "Enable CSS Rhythmic Sizing properties"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSScrollAnchoringEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS Scroll Anchoring"
  humanReadableDescription: "Enable CSS Scroll Anchoring"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSTextAlignLastEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS text-align-last property"
  humanReadableDescription: "Enable the property text-align-last, defined in CSS Text 3"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSTextGroupAlignEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS text-group-align property"
  humanReadableDescription: "Enable text-group-align CSS property"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSTextJustifyEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS text-justify property"
  humanReadableDescription: "Enable the property text-justify, defined in CSS Text 3"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSTextSpacingEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS text-spacing property"
  humanReadableDescription: "Enable the property text-spacing, defined in CSS Text 4"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSTextUnderlinePositionLeftRight:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS text-underline-position: left right"
  humanReadableDescription: "Enable the property text-underline-position left and right value support"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSTextWrapEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "CSS text-wrap property"
  humanReadableDescription: "Enable text-wrap CSS property"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSTransformStyleOptimized3DEnabled:
  type: bool
  status: unstable
  category: css
  humanReadableName: "CSS transform-style: optimized-3d"
  humanReadableDescription: "Enable transform-style: optimized-3d property to access the separated graphics layer"
  condition: ENABLE(CSS_TRANSFORM_STYLE_OPTIMIZED_3D)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CSSTypedOMColorEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Typed OM: Color Support"
  humanReadableDescription: "Enable the CSS Typed OM Color support"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

CSSTypedOMEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Typed OM"
  humanReadableDescription: "Enable the CSS Typed OM"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

# FIXME: This is not relevent for WebKitLegacy, so should be excluded from WebKitLegacy entirely (though we should still set the default value to false when initializing settings).
CacheAPIEnabled:
  type: bool
  status: embedder
  humanReadableName: "Cache API"
  humanReadableDescription: "Cache API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

CanvasColorSpaceEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Canvas Color Spaces"
  humanReadableDescription: "Enable use of predefined canvas color spaces"
  defaultValue:
    WebKitLegacy:
      "PLATFORM(COCOA)": true
      default: false
    WebKit:
      "PLATFORM(COCOA)": true
      default: false
    WebCore:
      default: false

CanvasFiltersEnabled:
  type: bool
  status: unstable
  category: dom
  webcoreOnChange: setNeedsRelayoutAllFrames
  humanReadableName: "Canvas Filters"
  humanReadableDescription: "Canvas Filters"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CanvasUsesAcceleratedDrawing:
  type: bool
  status: embedder
  humanReadableName: "Canvas uses accelerated drawing"
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY) && !PLATFORM(IOS_FAMILY_SIMULATOR)": true
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

CaptureAudioInGPUProcessEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "GPU Process: Audio Capture"
  humanReadableDescription: "Enable audio capture in GPU Process"
  webcoreBinding: none
  condition: ENABLE(MEDIA_STREAM)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: WebKit::defaultCaptureAudioInGPUProcessEnabled()

CaptureAudioInUIProcessEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "Capture audio in UI Process"
  humanReadableDescription: "Enable audio capture in UI Process"
  webcoreBinding: none
  condition: ENABLE(MEDIA_STREAM)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: WebKit::defaultCaptureAudioInUIProcessEnabled()

CaptureVideoInGPUProcessEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "GPU Process: Video Capture"
  humanReadableDescription: "Enable video capture in GPU Process"
  webcoreBinding: none
  condition: ENABLE(MEDIA_STREAM)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      "ENABLE(GPU_PROCESS_BY_DEFAULT)": true
      default: false

CaptureVideoInUIProcessEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "Capture video in UI Process"
  humanReadableDescription: "Enable video capture in UI Process"
  webcoreBinding: none
  condition: ENABLE(MEDIA_STREAM)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

CaretBrowsingEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ClearSiteDataHTTPHeaderEnabled:
  type: bool
  status: stable
  category: networking
  humanReadableName: "Clear-Site-Data HTTP Header"
  humanReadableDescription: "Enable Clear-Site-Data HTTP Header support"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

ClientBadgeEnabled:
  type: bool
  status: unstable
  category: dom
  humanReadableName: "Client Badge"
  humanReadableDescription: "Enable Client Badge"
  condition: ENABLE(BADGING)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ColorFilterEnabled:
  type: bool
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: WebKit has an alternate name for this called 'ShowDebugBorders'. We should standardize on one name.
CompositingBordersVisible:
  type: bool
  status: internal
  defaultsOverridable: true
  humanReadableName: "Compositing borders visible"
  webKitLegacyPreferenceKey: WebKitShowDebugBorders
  webcoreName: showDebugBorders
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  inspectorOverride: true
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: WebKit has an alternate name for this called 'ShowRepaintCounter'. We should standardize on one name.
CompositingRepaintCountersVisible:
  type: bool
  status: internal
  defaultsOverridable: true
  humanReadableName: "Compositing repaint counters visible"
  webKitLegacyPreferenceKey: WebKitShowRepaintCounter
  webcoreName: showRepaintCounter
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  inspectorOverride: true
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CompressionStreamEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Compression Stream API"
  humanReadableDescription: "Enable Compression Stream API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

# FIXME: This needs a more clear name to explain that it is a CSS related preference. (Maybe we need namespacing? CSS.ConstantPropertiesEnabled?)
ConstantPropertiesEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: false

ConstructableStylesheetsEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "Constructable Stylesheets"
  humanReadableDescription: "Enable Constructable Stylesheets"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

ContactPickerAPIEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "Contact Picker API"
  humanReadableDescription: "Enable the Contact Picker API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ContentChangeObserverEnabled:
  type: bool
  status: embedder
  condition: ENABLE(CONTENT_CHANGE_OBSERVER)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      "PLATFORM(IOS_FAMILY) && !PLATFORM(MACCATALYST)": true
      default: false

ContentDispositionAttachmentSandboxEnabled:
  comment: 'Some ports (e.g. iOS) might choose to display attachments inline, regardless
    of whether the response includes the HTTP header \"Content-Disposition: attachment\".
    This setting enables a sandbox around these attachments. The sandbox enforces
    all frame sandbox flags (see enum SandboxFlag in SecurityContext.h), and also
    disables <meta http-equiv> processing and subframe loading.'
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      PLATFORM(COCOA): true
      default: false
    WebCore:
      default: false

ContextMenuQRCodeDetectionEnabled:
  type: bool
  status: embedder
  condition: ENABLE(CONTEXT_MENU_QR_CODE_DETECTION)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

CookieConsentAPIEnabled:
  type: bool
  status: unstable
  category: dom
  humanReadableName: "Cookie Consent API"
  humanReadableDescription: "Enable cookie consent API"
  exposed: [ WebKit ]
  defaultValue:
    WebCore:
      default: false
    WebKitLegacy:
      default: false
    WebKit:
      default: false

# FIXME: This is handled via WebView SPI rather than WebPreferences for WebKitLegacy. We should change the SPI to lookup the WebPreferences value instead.
CookieEnabled:
  type: bool
  status: embedder
  humanReadableName: "Cookies Enabled"
  webKitLegacyBinding: custom
  defaultValue:
    WebKit:
      default: true
    WebKitLegacy:
      default: true
    WebCore:
      default: true

CoreMathMLEnabled:
  type: bool
  status: unstable
  category: dom
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  humanReadableName: "MathML Core"
  humanReadableDescription: "Disable features removed from the MathML Core spec."
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(GTK) || PLATFORM(WPE)": true
      default: false
    WebCore:
      default: false

CrossOriginEmbedderPolicyEnabled:
  type: bool
  status: stable
  category: security
  humanReadableName: "Cross-Origin-Embedder-Policy (COEP) header"
  humanReadableDescription: "Support for Cross-Origin-Embedder-Policy (COEP) header"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

CrossOriginOpenerPolicyEnabled:
  type: bool
  status: stable
  category: security
  humanReadableName: "Cross-Origin-Opener-Policy (COOP) header"
  humanReadableDescription: "Support for Cross-Origin-Opener-Policy (COOP) header"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

CursiveFontFamily:
  type: String
  status: embedder
  webKitLegacyPreferenceKey: WebKitCursiveFont
  webcoreImplementation: custom
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": '"Snell Roundhand"'
      default: '"Apple Chancery"'
    WebKit:
      "PLATFORM(COCOA) && PLATFORM(IOS_FAMILY)": '"Snell Roundhand"'
      "PLATFORM(COCOA) && !PLATFORM(IOS_FAMILY)": '"Apple Chancery"'
      default: '"Comic Sans MS"'
    WebCore:
      default: '""'

CustomPasteboardDataEnabled:
  type: bool
  status: embedder
  humanReadableName: "Custom pasteboard data"
  humanReadableDescription: "Enable custom clipboard types and better security model for clipboard API."
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA) || PLATFORM(GTK) || PLATFORM(WIN)": true
      default: false

DNSPrefetchingEnabled:
  type: bool
  status: embedder
  webcoreOnChange: dnsPrefetchingEnabledChanged
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

DOMAudioSessionEnabled:
  type: bool
  status: testable
  category: media
  humanReadableName: "AudioSession API"
  humanReadableDescription: "Enable AudioSession API"
  condition: ENABLE(DOM_AUDIO_SESSION)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

DOMAudioSessionFullEnabled:
  type: bool
  status: testable
  category: media
  humanReadableName: "AudioSession full API"
  humanReadableDescription: "Enable AudioSession full API"
  condition: ENABLE(DOM_AUDIO_SESSION)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

DOMPasteAccessRequestsEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "DOM Paste Access Requests"
  humanReadableDescription: "Enable DOM Paste Access Requests"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(IOS) || PLATFORM(MAC) || PLATFORM(GTK)": true
      default: false
    WebCore:
      default: false

DOMPasteAllowed:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitDOMPasteAllowedPreferenceKey
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

DOMTestingAPIsEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "Additional Testing APIs for DOM Objects"
  humanReadableDescription: "Enable additional testing APIs for DOM objects"
  defaultValue:
    WebCore:
      default: false
    WebKit:
      default: false
    WebKitLegacy:
      default: false

DOMTimersThrottlingEnabled:
  type: bool
  status: embedder
  humanReadableName: "DOM timer throttling enabled"
  webKitLegacyPreferenceKey: WebKitDOMTimersThrottlingEnabledPreferenceKey
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

DataDetectorTypes:
  type: uint32_t
  refinedType: WebCore::DataDetectorType
  status: embedder
  condition: ENABLE(DATA_DETECTION)
  defaultValue:
    WebKitLegacy:
      default: DataDetectorType::None
    WebKit:
      default: DataDetectorType::None
    WebCore:
      default: DataDetectorType::None

# FIXME: This is on by default in WebKit2 (for everything but WatchOS). Perhaps we should consider turning it on for WebKitLegacy as well.
DataListElementEnabled:
  type: bool
  status: embedder
  humanReadableName: "DataList Element"
  humanReadableDescription: "Enable datalist elements"
  condition: ENABLE(DATALIST_ELEMENT)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(WATCHOS)": false
      default: true
    WebCore:
      "PLATFORM(WATCHOS)": false
      default: true

DataTransferItemsEnabled:
  type: bool
  status: embedder
  humanReadableName: "Data Transfer Items"
  humanReadableDescription: "Enables DataTransferItem in the clipboard API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      "PLATFORM(COCOA) || PLATFORM(GTK) || PLATFORM(WPE)": true
      default: false
    WebCore:
      default: false

DatabasesEnabled:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitDatabasesEnabledPreferenceKey
  webcoreBinding: custom
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true

# FIXME: This is on by default in WebKit2 (for macOS at least). Perhaps we should consider turning it on for WebKitLegacy as well.
DateTimeInputsEditableComponentsEnabled:
  type: bool
  status: embedder
  humanReadableName: "Date/Time inputs have editable components"
  humanReadableDescription: "Enable multiple editable components in date/time inputs"
  condition: ENABLE(DATE_AND_TIME_INPUT_TYPES)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(MAC) || PLATFORM(GTK)": true
      default: false
    WebCore:
      default: false

DeclarativeShadowDOMEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Declarative Shadow DOM"
  humanReadableDescription: "Enable Declarative Shadow DOM"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

DeclarativeShadowDOMInDOMParserEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "DOMParser support for Declarative Shadow DOM"
  humanReadableDescription: "Enable Declarative Shadow DOM in DOMParser"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

DefaultARIAForCustomElementsEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Default ARIA for Custom Elements"
  humanReadableDescription: "Enable Default ARIA for Custom Elements"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

DefaultFixedFontSize:
  type: double
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      default: 13
    WebKit:
      default: 13
    WebCore:
      default: 13

DefaultFontSize:
  type: double
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      default: 16
    WebKit:
      default: 16
    WebCore:
      default: 16

DefaultTextEncodingName:
  type: String
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: '"ISO-8859-1"'
    WebKit:
      default: PAL::defaultTextEncodingNameForSystemLanguage()
    WebCore:
      default: '{ }'

DeprecateRSAESPKCSWebCryptoEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Deprecate RSAES-PKCS1-v1_5 Web Crypto"
  humanReadableDescription: "Enable Deprecation of RSAES-PKCS1-v1_5 Web Crypto"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

DeprecationReportingEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "Deprecation Reporting"
  humanReadableDescription: "Enable Deprecation Reporting"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

DeveloperExtrasEnabled:
  type: bool
  status: embedder
  defaultsOverridable: true
  webKitLegacyPreferenceKey: WebKitDeveloperExtrasEnabledPreferenceKey
  webKitLegacyBinding: custom
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

DeviceHeight:
  type: uint32_t
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: 0
    WebKit:
      default: 0
    WebCore:
      default: 0

DeviceOrientationEventEnabled:
  type: bool
  status: embedder
  condition: ENABLE(DEVICE_ORIENTATION)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

DeviceOrientationPermissionAPIEnabled:
  type: bool
  status: embedder
  condition: ENABLE(DEVICE_ORIENTATION)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

DeviceWidth:
  type: uint32_t
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: 0
    WebKit:
      default: 0
    WebCore:
      default: 0

DiagnosticLoggingEnabled:
  type: bool
  status: embedder
  humanReadableName: "Diagnostic logging enabled"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

DialogElementEnabled:
  type: bool
  status: stable
  category: html
  humanReadableName: "HTML <dialog> element"
  humanReadableDescription: "Enable HTML <dialog> element"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

DirPseudoEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: ":dir pseudo-class"
  humanReadableDescription: "Enable the directionality pseudo-class :dir"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

DirectoryUploadEnabled:
  type: bool
  status: embedder
  humanReadableName: "Directory Upload"
  humanReadableDescription: "input.webkitdirectory / dataTransferItem.webkitGetAsEntry()"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA) || PLATFORM(GTK) || PLATFORM(WPE)": true
      default: false
    WebCore:
      default: false

# FIXME: Starting the preference name with "Disable" is inconsistent with most other preferences and should be changed.
DisableScreenSizeOverride:
  type: bool
  status: internal
  defaultsOverridable: true
  humanReadableName: "Disable screen size override"
  webcoreBinding: DeprecatedGlobalSettings
  condition: PLATFORM(IOS_FAMILY)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

DisabledAdaptationsMetaTagEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(WATCHOS)": true
      default: false
    WebCore:
      default: false

DisallowSyncXHRDuringPageDismissalEnabled:
  type: bool
  status: stable
  category: security
  humanReadableName: "Disallow sync XHR during page dismissal"
  humanReadableDescription: "Disallow synchronous XMLHttpRequest during page dismissal"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      "PLATFORM(MAC) || PLATFORM(IOS_FAMILY)": WebKit::defaultDisallowSyncXHRDuringPageDismissalEnabled()
      default: true
    WebCore:
      default: true

DisplayListDrawingEnabled:
  type: bool
  status: unstable
  defaultsOverridable: true
  humanReadableName: "DisplayList Drawing"
  humanReadableDescription: "Enable display-list drawing"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: This is on by default in WebKit2. Perhaps we should consider turning it on for WebKitLegacy as well.
DownloadAttributeEnabled:
  type: bool
  status: embedder
  condition: ENABLE(DOWNLOAD_ATTRIBUTE)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

EditableLinkBehavior:
  type: uint32_t
  refinedType: WebCore::EditableLinkBehavior
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: WebKitEditableLinkDefaultBehavior
    WebKit:
      default: WebCore::EditableLinkBehavior::NeverLive
    WebCore:
      default: EditableLinkBehavior::Default

EmbedElementEnabled:
  type: bool
  status: mature
  humanReadableName: "Embed Element"
  humanReadableDescription: "Embed Element"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

EnableInheritURIQueryComponent:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

EncryptedMediaAPIEnabled:
  type: bool
  status: embedder
  condition: ENABLE(ENCRYPTED_MEDIA)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

EnterKeyHintEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "Enter Key Hint"
  humanReadableDescription: "Enable the enterKeyHint HTML attribute"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA)": true
      default: false
    WebCore:
      default: false

EnumeratingAllNetworkInterfacesEnabled:
  type: bool
  status: embedder
  humanReadableName: "Enable Enumerating All Network Interfaces"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

EventHandlerDrivenSmoothKeyboardScrollingEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "EventHandler driven smooth keyboard scrolling"
  humanReadableDescription: "Enable EventHandler driven smooth keyboard scrolling"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(MAC)": WebKit::defaultScrollAnimatorEnabled()
      "PLATFORM(GTK) || PLATFORM(WPE)": true
      default: false
    WebCore:
      default: false

ExperimentalSandboxEnabled:
  type: bool
  status: internal
  category: security
  humanReadableName: "Enable experimental sandbox features"
  humanReadableDescription: "Enable experimental sandbox features"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
ExposeSpeakersEnabled:
  type: bool
  status: testable
  category: media
  humanReadableName: "Allow speaker device selection"
  humanReadableDescription: "Allow speaker device selection"
  condition: ENABLE(MEDIA_STREAM)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ExtendedAudioDescriptionsEnabled:
  type: bool
  status: preview
  category: media
  condition: ENABLE(VIDEO)
  humanReadableName: "Audio descriptions for video - Extended"
  humanReadableDescription: "Enable extended audio descriptions for video"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ExtensibleSSOEnabled:
  type: bool
  status: embedder
  getter: isExtensibleSSOEnabled
  webcoreBinding: none
  condition: HAVE(APP_SSO)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

FTPDirectoryTemplatePath:
  type: String
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: '""'
    WebKit:
      default: '""'
    WebCore:
      default: '""'

FTPEnabled:
  type: bool
  status: developer
  category: networking
  humanReadableName: "FTP support enabled"
  humanReadableDescription: "FTP support enabled"
  defaultValue:
    WebCore:
      default: false
    WebKit:
      default: false
    WebKitLegacy:
      default: false

FantasyFontFamily:
  type: String
  status: embedder
  webKitLegacyPreferenceKey: WebKitFantasyFont
  webcoreImplementation: custom
  defaultValue:
    WebKitLegacy:
      default: '"Papyrus"'
    WebKit:
      "PLATFORM(COCOA)": '"Papyrus"'
      default: '"Impact"'
    WebCore:
      default: '""'

FasterClicksEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "Fast clicks"
  humanReadableDescription: "Support faster clicks on zoomable pages"
  webcoreBinding: none
  condition: PLATFORM(IOS_FAMILY)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

FetchAPIEnabled:
  type: bool
  status: mature
  humanReadableName: "Fetch API"
  humanReadableDescription: "Fetch API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

# FIXME: This seems to be accidentally enabled for WebKit1 right now due to the old code using the
# wrong preference key in some places. We should identify whether it really makes sense to keep this
# enabled.
FetchAPIKeepAliveEnabled:
  type: bool
  status: mature
  humanReadableName: "Fetch API Request KeepAlive"
  humanReadableDescription: "Enable Fetch API Request KeepAlive"
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true

FetchMetadataEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Fetch Metadata"
  humanReadableDescription: "Enable Fetch Metadata headers"
  defaultValue:
    WebCore:
      default: true
    WebKit:
      default: true
    WebKitLegacy:
      default: true

FileReaderAPIEnabled:
  type: bool
  status: embedder
  humanReadableName: "FileReader API"
  humanReadableDescription: "FileReader API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

FileSystemAccessEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "File System Access API"
  humanReadableDescription: "Enable File System Access API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA)" : true
      default: false
    WebCore:
      "PLATFORM(COCOA)" : true
      default: false

FixedFontFamily:
  type: String
  status: embedder
  webKitLegacyPreferenceKey: WebKitFixedFont
  webcoreImplementation: custom
  defaultValue:
    WebKitLegacy:
      default: '"Courier"'
    WebKit:
      "PLATFORM(COCOA)": '"Courier"'
      default: '"Courier New"'
    WebCore:
      default: '""'

FlexFormattingContextIntegrationEnabled:
  type: bool
  status: unstable
  category: dom
  humanReadableName: "Next-generation flex layout integration (FFC)"
  humanReadableDescription: "Enable next-generation flex layout integration (FFC)"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

FocusVisibleEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: ":focus-visible pseudo-class"
  humanReadableDescription: "Enable the focus-indicated pseudo-class :focus-visible"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

ForceAlwaysUserScalable:
  type: bool
  status: internal
  defaultsOverridable: true
  humanReadableName: "Force always user-scalable"
  webcoreBinding: none
  condition: PLATFORM(IOS_FAMILY)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

ForceCompositingMode:
  type: bool
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

ForceFTPDirectoryListings:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ForceWebGLUsesLowPower:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: false
    WebCore:
      default: false

FormAssociatedCustomElementsEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Form-associated custom elements"
  humanReadableDescription: "Support for form-associated custom elements"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

# FIXME: This should be reconciled with 'FrameFlattening'.
FrameFlatteningEnabled:
  type: bool
  status: embedder
  humanReadableName: "Frame flattening"
  humanReadableDescription: "Enable frame flattening, which adjusts the height of an iframe to fit its contents"
  webcoreBinding: custom
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      "PLATFORM(IOS_FAMILY)": true
      default: false

FullScreenEnabled:
  type: bool
  status: embedder
  humanReadableName: "Fullscreen API"
  humanReadableDescription: "Fullscreen API"
  condition: ENABLE(FULLSCREEN_API)
  hidden: EXPERIMENTAL_FULLSCREEN_API_HIDDEN
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

FullscreenRequirementForScreenOrientationLockingEnabled:
  type: bool
  status: embedder
  humanReadableName: "Require being in Fullscreen to lock screen orientation"
  humanReadableDescription: "Require being in Fullscreen to lock screen orientation"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

GStreamerEnabled:
  type: bool
  status: embedder
  getter: isGStreamerEnabled
  webcoreBinding: DeprecatedGlobalSettings
  condition: USE(GSTREAMER)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

GamepadTriggerRumbleEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "Gamepad trigger vibration support"
  humanReadableDescription: "Support for Gamepad trigger vibration"
  condition: ENABLE(GAMEPAD)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

GamepadVibrationActuatorEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "Gamepad.vibrationActuator support"
  humanReadableDescription: "Support for Gamepad.vibrationActuator"
  condition: ENABLE(GAMEPAD)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: defaultGamepadVibrationActuatorEnabled()
    WebCore:
      default: false

GamepadsEnabled:
  type: bool
  status: embedder
  humanReadableName: "Gamepads"
  humanReadableDescription: "Web Gamepad API support"
  condition: ENABLE(GAMEPAD)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

# FIXME: This is on by default in WebKit2. Perhaps we should consider turning it on for WebKitLegacy as well.
GenericCueAPIEnabled:
  type: bool
  status: mature
  condition: ENABLE(VIDEO)
  humanReadableName: "Generic Text Track Cue API"
  humanReadableDescription: "Enable Generic Text Track Cue API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

GetUserMediaRequiresFocus:
  type: bool
  status: internal
  category: media
  humanReadableName: "Require focus to start getUserMedia"
  humanReadableDescription: "Require focus to start getUserMedia"
  condition: ENABLE(MEDIA_STREAM)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

GoogleAntiFlickerOptimizationQuirkEnabled:
  type: bool
  status: mature
  humanReadableName: "Quirk to prevent delayed initial painting on sites using Google's Anti-Flicker optimization"
  humanReadableDescription: "Quirk to prevent delayed initial painting on sites using Google's Anti-Flicker optimization"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

GraphicsContextFiltersEnabled:
   type: bool
   status: unstable
   webcoreOnChange: setNeedsRelayoutAllFrames
   humanReadableName: "GraphicsContext Filter Rendering"
   humanReadableDescription: "GraphicsContext Filter Rendering"
   condition: USE(GRAPHICS_CONTEXT_FILTERS)
   defaultValue:
     WebKitLegacy:
       default: false
     WebKit:
       default: false
     WebCore:
       default: false

HTTPEquivEnabled:
  type: bool
  status: mature
  humanReadableName: "http-equiv"
  humanReadableDescription: "Enable http-equiv attribute"
  webcoreName: httpEquivEnabled
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

HasPseudoClassEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: ":has() pseudo-class"
  humanReadableDescription: "Enable :has() pseudo-class"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

HiddenPageCSSAnimationSuspensionEnabled:
  type: bool
  status: embedder
  webcoreOnChange: hiddenPageCSSAnimationSuspensionEnabledChanged
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      "PLATFORM(COCOA) || PLATFORM(GTK)": true
      default: false
    WebCore:
      default: false

HiddenPageDOMTimerThrottlingAutoIncreases:
  type: bool
  status: embedder
  humanReadableName: "Hidden page DOM timer throttling auto-increases"
  webcoreOnChange: hiddenPageDOMTimerThrottlingStateChanged
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

HiddenPageDOMTimerThrottlingEnabled:
  type: bool
  status: embedder
  humanReadableName: "Hidden page DOM timer throttling"
  humanReadableDescription: "Enable hidden page DOM timer throttling"
  webcoreOnChange: hiddenPageDOMTimerThrottlingStateChanged
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA) || PLATFORM(GTK)": true
      default: false
    WebCore:
      default: false

HighlightAPIEnabled:
  type: bool
  status: testable
  category: css
  humanReadableName: "Highlight API"
  humanReadableDescription: "Highlight API support"
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false

HyperlinkAuditingEnabled:
  type: bool
  status: embedder
  humanReadableName: "Hyperlink Auditing"
  humanReadableDescription: "Enable Hyperlink Auditing"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: false

ICECandidateFilteringEnabled:
  type: bool
  status: internal
  category: dom
  webcoreOnChange: iceCandidateFilteringEnabledChanged
  inspectorOverride: true
  humanReadableName: "Enable ICE Candidate Filtering"
  humanReadableDescription: "Enable ICE Candidate Filtering"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

IOSFormControlRefreshEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "iOS Form Control Refresh"
  humanReadableDescription: "Enable the new appearance for form controls on iOS"
  condition: ENABLE(IOS_FORM_CONTROL_REFRESH)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

IPCTestingAPIEnabled:
  type: bool
  status: internal
  category: security
  humanReadableName: "IPC Testing API"
  humanReadableDescription: "Enable IPC Testing API for JavaScript"
  webcoreBinding: none
  condition: ENABLE(IPC_TESTING_API)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

ImageAnalysisDuringFindInPageEnabled:
  type: bool
  status: unstable
  humanReadableName: "Image Analysis for Find-in-Page"
  humanReadableDescription: "Trigger image analysis when performing Find-in-Page"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ImageAnimationControlEnabled:
  type: bool
  status: stable
  category: animation
  humanReadableName: "Image Animation Control"
  humanReadableDescription: "Enable controls for image animations"
  condition: ENABLE(ACCESSIBILITY_ANIMATION_CONTROL)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

ImageControlsEnabled:
  type: bool
  status: unstable
  category: dom
  humanReadableName: "Image Controls"
  humanReadableDescription: "Enable image controls"
  condition: ENABLE(SERVICE_CONTROLS)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ImperativeSlotAPIEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Imperative Slot API"
  humanReadableDescription: "Imperative Shadow DOM Distribution API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

InactiveMediaCaptureSteamRepromptIntervalInMinutes:
  type: double
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      "PLATFORM(IOS_FAMILY)": 1
      default: 10

IncompleteImageBorderEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

IncrementalPDFLoadingEnabled:
  type: bool
  status: embedder
  condition: HAVE(INCREMENTAL_PDF_APIS)
  defaultValue:
    WebKitLegacy:
      "PLATFORM(MAC)": true
      default: false
    WebKit:
      "PLATFORM(MAC)": true
      default: false
    WebCore:
      "PLATFORM(MAC)": true
      default: false

IncrementalRenderingSuppressionTimeout:
  type: double
  status: embedder
  webKitLegacyPreferenceKey: WebKitIncrementalRenderingSuppressionTimeoutInSeconds
  webcoreName: incrementalRenderingSuppressionTimeoutInSeconds
  defaultValue:
    WebKitLegacy:
      default: 5
    WebKit:
      default: 5
    WebCore:
      default: 5

IndexedDBAPIEnabled:
  type: bool
  status: embedder
  humanReadableName: "IndexedDB API"
  humanReadableDescription: "IndexedDB API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

InertAttributeEnabled:
  type: bool
  status: stable
  category: html
  humanReadableName: "HTML inert attribute"
  humanReadableDescription: "Enable inert attribute support"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

InlineFormattingContextIntegrationEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "Next-generation inline layout (IFC)"
  humanReadableDescription: "Enable next-generation inline layout (IFC)"
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true

InlineMediaPlaybackRequiresPlaysInlineAttribute:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultInlineMediaPlaybackRequiresPlaysInlineAttribute()
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebCore:
      "PLATFORM(IOS_FAMILY)": true
      default: false

InputTypeColorEnabled:
  type: bool
  status: embedder
  humanReadableName: "Color Inputs"
  humanReadableDescription: "Enable input elements of type color"
  condition: ENABLE(INPUT_TYPE_COLOR)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(WATCHOS)": false
      default: true
    WebCore:
      default: false

InputTypeDateEnabled:
  type: bool
  status: embedder
  humanReadableName: "Date Input"
  humanReadableDescription: "Enable input elements of type date"
  condition: ENABLE(INPUT_TYPE_DATE)
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebKit:
      "PLATFORM(APPLETV)": false
      default: true
    WebCore:
      default: false

InputTypeDateTimeLocalEnabled:
  type: bool
  status: embedder
  humanReadableName: "datetime-local Inputs"
  humanReadableDescription: "Enable input elements of type datetime-local"
  condition: ENABLE(INPUT_TYPE_DATETIMELOCAL)
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebKit:
      "PLATFORM(APPLETV)": false
      default: true
    WebCore:
      default: false

InputTypeMonthEnabled:
  type: bool
  status: embedder
  humanReadableName: "Month Input"
  humanReadableDescription: "Enable input elements of type month"
  condition: ENABLE(INPUT_TYPE_MONTH)
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebKit:
      "!PLATFORM(MAC) && !PLATFORM(APPLETV)": true
      default: false
    WebCore:
      default: false

InputTypeTimeEnabled:
  type: bool
  status: embedder
  humanReadableName: "Time Input"
  humanReadableDescription: "Enable input elements of type time"
  condition: ENABLE(INPUT_TYPE_TIME)
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebKit:
      "PLATFORM(APPLETV)": false
      default: true
    WebCore:
      default: false

InputTypeWeekEnabled:
  type: bool
  status: embedder
  humanReadableName: "Week Input"
  humanReadableDescription: "Enable input elements of type week"
  condition: ENABLE(INPUT_TYPE_WEEK)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "!PLATFORM(MAC) && !PLATFORM(APPLETV)": true
      default: false
    WebCore:
      default: false

InspectorAttachedHeight:
  type: uint32_t
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: 500

InspectorAttachedWidth:
  type: uint32_t
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: 750

InspectorAttachmentSide:
  type: uint32_t
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: 0

InspectorStartsAttached:
  type: bool
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

InspectorWindowFrame:
  type: String
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: '""'

InteractionRegionInlinePadding:
  type: double
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: 4
    WebKit:
      default: 4
    WebCore:
      default: 4

InteractionRegionMinimumCornerRadius:
  type: double
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: 8
    WebKit:
      default: 8
    WebCore:
      default: 8

InteractionRegionsEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "Interaction Regions"
  humanReadableDescription: "Generate and visualize interaction regions"
  condition: ENABLE(INTERACTION_REGIONS_IN_EVENT_REGION)
  defaultValue:
    WebKit:
      default: true
    WebKitLegacy:
      default: false
    WebCore:
      default: false

# FIXME: This is handled via WebView SPI rather than WebPreferences for WebKitLegacy. We should change the SPI to lookup the WebPreferences value instead.
InteractiveFormValidationEnabled:
  type: bool
  status: embedder
  humanReadableName: "HTML Interactive Form Validation"
  humanReadableDescription: "HTML interactive form validation"
  webKitLegacyBinding: custom
  defaultValue:
    WebKit:
      default: true
    WebKitLegacy:
      default: false
    WebCore:
      default: false

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely (though we should still set the default value to false when initializing settings).
InterruptAudioOnPageVisibilityChangeEnabled:
  type: bool
  status: embedder
  condition: ENABLE(MEDIA_STREAM)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebCore:
      default: false

InterruptVideoOnPageVisibilityChangeEnabled:
  type: bool
  status: embedder
  condition: ENABLE(MEDIA_STREAM)
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY) && !HAVE(UIKIT_WEBKIT_INTERNALS)": true
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY) && !HAVE(UIKIT_WEBKIT_INTERNALS)": true
      default: false
    WebCore:
      default: false

# FIXME: This is on by default in WebKit2. Perhaps we should consider turning it on for WebKitLegacy as well.
IntersectionObserverEnabled:
  type: bool
  status: mature
  humanReadableName: "Intersection Observer"
  humanReadableDescription: "Enable Intersection Observer support"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

InvisibleAutoplayNotPermitted:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: InvisibleAutoplayNotPermitted
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebCore:
      default: false

IsAccessibilityIsolatedTreeEnabled:
  type: bool
  status: embedder
  humanReadableName: "Isolated Accessibility Tree Mode"
  humanReadableDescription: "Enable an accessibility hierarchy for VoiceOver that can be accessed on a secondary thread for improved performance"
  webcoreBinding: DeprecatedGlobalSettings
  condition: ENABLE(ACCESSIBILITY_ISOLATED_TREE)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "USE(ATSPI)": true
      default: false
    WebCore:
      default: false

# FIXME: The 'Is' prefix is inconsistent with most other preferences and should be removed.
IsFirstPartyWebsiteDataRemovalDisabled:
  type: bool
  status: developer
  category: privacy
  humanReadableName: "Disable Removal of Non-Cookie Data After 7 Days of No User Interaction (ITP)"
  humanReadableDescription: "Disable removal of all non-cookie website data after seven days of no user interaction when Intelligent Tracking Prevention is enabled"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: This is not relevent for WebKitLegacy, so should be excluded from WebKitLegacy entirely.
IsFirstPartyWebsiteDataRemovalLiveOnTestingEnabled:
  type: bool
  status: developer
  category: privacy
  humanReadableName: "[ITP Live-On] 1 Hour Timeout For Non-Cookie Data Removal"
  humanReadableDescription: "Remove all non-cookie website data after just one hour of no user interaction when Intelligent Tracking Prevention is enabled"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: This is not relevent for WebKitLegacy, so should be excluded from WebKitLegacy entirely.
IsFirstPartyWebsiteDataRemovalReproTestingEnabled:
  type: bool
  status: developer
  category: privacy
  humanReadableName: "[ITP Repro] 30 Second Timeout For Non-Cookie Data Removal"
  humanReadableDescription: "Remove all non-cookie website data after just 30 seconds of no user interaction when Intelligent Tracking Prevention is enabled"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: The 'Is' prefix is inconsistent with most other preferences and should be removed.
IsLoggedInAPIEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "IsLoggedIn web API"
  humanReadableDescription: "Enable the proposed IsLoggedIn web API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: The 'Is' prefix is inconsistent with most other preferences and should be removed.
IsSameSiteStrictEnforcementEnabled:
  type: bool
  status: unstable
  category: privacy
  humanReadableName: "SameSite strict enforcement (ITP)"
  humanReadableDescription: "Enable SameSite strict enforcement to mitigate bounce tracking"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: The 'Is' prefix is inconsistent with most other preferences and should be removed.
IsThirdPartyCookieBlockingDisabled:
  type: bool
  status: developer
  category: privacy
  humanReadableName: "Disable Full 3rd-Party Cookie Blocking (ITP)"
  humanReadableDescription: "Disable full third-party cookie blocking when Intelligent Tracking Prevention is enabled"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: This is not relevent for WebKitLegacy, so should be excluded from WebKitLegacy entirely (though we should still set the default value to false when initializing settings).
ItpDebugModeEnabled:
  type: bool
  status: developer
  category: privacy
  humanReadableName: "ITP Debug Mode"
  humanReadableDescription: "Intelligent Tracking Prevention Debug Mode"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

JavaScriptCanAccessClipboard:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

JavaScriptCanOpenWindowsAutomatically:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultJavaScriptCanOpenWindowsAutomatically()
      default: true
    WebKit:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebCore:
      default: false

JavaScriptEnabled:
  type: bool
  status: mature
  humanReadableName: "JavaScript"
  humanReadableDescription: "Enable JavaScript"
  inspectorOverride: true
  webcoreGetter: isScriptEnabled
  webcoreName: scriptEnabled
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: false

# NOTE: Clients should use per-navigation "allowsContentJavaScript" policies instead
JavaScriptMarkupEnabled:
  type: bool
  status: embedder
  webcoreName: scriptMarkupEnabled
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

JavaScriptRuntimeFlags:
  type: uint32_t
  refinedType: JSC::RuntimeFlags
  status: embedder
  webKitLegacyPreferenceKey: WebKitJavaScriptRuntimeFlagsPreferenceKey
  defaultValue:
    WebKitLegacy:
      default: 0
    WebKit:
      default: 0
    WebCore:
      default: '{ }'

LargeImageAsyncDecodingEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

LayerBasedSVGEngineEnabled:
  type: bool
  status: unstable
  humanReadableName: "Layer-based SVG Engine (LBSE)"
  humanReadableDescription: "Enable next-generation layer-based SVG Engine (LBSE)"
  condition: ENABLE(LAYER_BASED_SVG_ENGINE)
  webcoreOnChange: layerBasedSVGEngineEnabledChanged
  defaultValue:
    WebCore:
      default: false
    WebKitLegacy:
      default: false
    WebKit:
      default: false

LayoutFallbackWidth:
  type: uint32_t
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: 980
    WebKit:
      default: 980
    WebCore:
      default: 980

LayoutFormattingContextEnabled:
  type: bool
  status: unstable
  category: dom
  humanReadableName: "Full next-generation layout (LFC)"
  humanReadableDescription: "Enable full next-generation layout (LFC)"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

LayoutViewportHeightExpansionFactor:
  type: double
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      default: 0
    WebKit:
      "PLATFORM(WATCHOS)": 1
      default: 0
    WebCore:
      default: 0

LazyIframeLoadingEnabled:
  type: bool
  status: stable
  category: html
  humanReadableName: "Lazy iframe loading"
  humanReadableDescription: "Enable lazy iframe loading support"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

LazyImageLoadingEnabled:
  type: bool
  status: stable
  category: html
  humanReadableName: "Lazy image loading"
  humanReadableDescription: "Enable lazy image loading support"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

LegacyEncryptedMediaAPIEnabled:
  type: bool
  status: embedder
  humanReadableName: "Enable Legacy EME API"
  humanReadableDescription: "Enable legacy EME API"
  condition: ENABLE(LEGACY_ENCRYPTED_MEDIA)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

LegacyLineLayoutVisualCoverageEnabled:
  type: bool
  status: internal
  category: dom
  defaultsOverridable: true
  humanReadableName: "Legacy line layout visual coverage"
  humanReadableDescription: "Enable legacy line layout visual coverage"
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

LegacyOverflowScrollingTouchEnabled:
  type: bool
  status: internal
  webcoreOnChange: setNeedsRelayoutAllFrames
  humanReadableName: "Legacy -webkit-overflow-scrolling property"
  humanReadableDescription: "Support the legacy -webkit-overflow-scrolling CSS property"
  condition: ENABLE(OVERFLOW_SCROLLING_TOUCH)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

LineHeightUnitsEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "lh / rlh units"
  humanReadableDescription: "Enable the lh and rlh units"
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

LinkModulePreloadEnabled:
  type: bool
  status: stable
  category: networking
  humanReadableName: "Link rel=modulepreload"
  humanReadableDescription: "Enable Link rel=modulepreload"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

LinkPreconnect:
  type: bool
  status: embedder
  webcoreName: linkPreconnectEnabled
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "ENABLE(SERVER_PRECONNECT)": true
      default: false
    WebCore:
      default: false

LinkPreconnectEarlyHintsEnabled:
  type: bool
  status: testable
  category: networking
  humanReadableName: "Link rel=preconnect via HTTP early hints"
  humanReadableDescription: "Enable link rel=preconnect via early hints"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "ENABLE(SERVER_PRECONNECT)": true
      default: false
    WebCore:
      default: false

LinkPrefetchEnabled:
  type: bool
  status: testable
  category: networking
  humanReadableName: "LinkPrefetch"
  humanReadableDescription: "Enable LinkedPrefetch"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

LinkPreloadEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

LinkPreloadResponsiveImagesEnabled:
  type: bool
  status: testable
  category: networking
  humanReadableName: "Link preload responsive images"
  humanReadableDescription: "Enable link preload responsive images"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

LinkSanitizerEnabled:
  type: bool
  status: unstable
  category: networking
  humanReadableName: "Link Sanitizer"
  humanReadableDescription: "Enable link sanitizer"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

LiveRangeSelectionEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Live Ranges in Selection"
  humanReadableDescription: "Live range behavior for ranges in the Selection object"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: WebKit::defaultLiveRangeSelectionEnabled()
    WebCore:
      default: true

LoadDeferringEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      PLATFORM(MAC): WebKit::defaultLoadDeferringEnabled()
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

# This only suppresses the network load of the image URL. A cached image will still be rendered if requested.
LoadsImagesAutomatically:
  type: bool
  status: embedder
  webcoreOnChange: imagesEnabledChanged
  webKitLegacyPreferenceKey: WebKitDisplayImagesKey
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: false

# This preference only affects site icon image loading if the LoadsImagesAutomatically preference is false and
# this preference is true. All other permutations still heed LoadsImagesAutomatically preference.
LoadsSiteIconsIgnoringImageLoadingPreference:
  type: bool
  status: stable
  category: networking
  humanReadableName: "Load site icons ignoring image loading preference"
  webKitLegacyPreferenceKey: WebKitLoadSiteIconsKey
  webcoreName: loadsSiteIconsIgnoringImageLoadingSetting
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

LocalFileContentSniffingEnabled:
  type: bool
  status: stable
  category: networking
  humanReadableName: "Local File Content Sniffing"
  humanReadableDescription: "Enable Local File Content Sniffing"
  webKitLegacyPreferenceKey: WebKitLocalFileContentSniffingEnabledPreferenceKey
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

LocalStorageEnabled:
  type: bool
  status: mature
  humanReadableName: "Local Storage"
  humanReadableDescription: "Enable Local Storage"
  webKitLegacyPreferenceKey: WebKitLocalStorageEnabledPreferenceKey
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: false

LogsPageMessagesToSystemConsoleEnabled:
  type: bool
  status: internal
  category: dom
  defaultsOverridable: true
  humanReadableName: "Log page messages to system console"
  humanReadableDescription: "Enable logging page messages to system console"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

LongRunningMediaCaptureStreamRepromptIntervalInHours:
  type: double
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: 24

LowPowerVideoAudioBufferSizeEnabled:
  type: bool
  status: embedder
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true

MainContentUserGestureOverrideEnabled:
  type: bool
  status: embedder
  humanReadableName: "Main content user gesture override"
  humanReadableDescription: "Enable main content user gesture override"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ManageCaptureStatusBarInGPUProcessEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "GPU Process: Capture Status Bar management"
  humanReadableDescription: "Enable Capture Status Bar management in GPU Process"
  condition: ENABLE(MEDIA_STREAM) && PLATFORM(IOS_FAMILY)
  defaultValue:
    WebKit:
      default: WebKit::defaultManageCaptureStatusBarInGPUProcessEnabled()
    WebKitLegacy:
      default: false
    WebCore:
      default: false

ManagedMediaSourceEnabled:
  type: bool
  status: stable
  category: media
  humanReadableName: "Managed Media Source API"
  humanReadableDescription: "Managed Media Source API"
  condition: ENABLE(MANAGED_MEDIA_SOURCE) && ENABLE(MEDIA_SOURCE)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: WebKit::defaultManagedMediaSourceEnabled()
    WebCore:
      default: true

ManagedMediaSourceHighThreshold:
  type: double
  status: embedder
  condition: ENABLE(MANAGED_MEDIA_SOURCE)
  defaultValue:
    WebKit:
      default: 30
    WebCore:
      default: 30

ManagedMediaSourceLowThreshold:
  type: double
  status: embedder
  condition: ENABLE(MANAGED_MEDIA_SOURCE)
  defaultValue:
    WebKit:
      default: 10
    WebCore:
      default: 10

MarkedTextInputEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

MaskWebGLStringsEnabled:
  type: bool
  status: stable
  category: privacy
  humanReadableName: "Mask WebGL Strings"
  humanReadableDescription: "Mask WebGL Vendor, Renderer, Shader Language Strings"
  condition: ENABLE(WEBGL)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

MasonryEnabled:
  type: bool
  status: preview
  category: css
  humanReadableName: "CSS Masonry Layout"
  humanReadableDescription: "Enable Masonry Layout for CSS Grid"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

MathMLEnabled:
  type: bool
  status: embedder
  condition: ENABLE(MATHML)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

MaxParseDuration:
  type: double
  status: embedder
  webKitLegacyPreferenceKey: WebKitMaxParseDurationPreferenceKey
  defaultValue:
    WebKitLegacy:
      default: -1
    WebKit:
      default: -1
    WebCore:
      default: -1

MediaAudioCodecIDsAllowedInLockdownMode:
  type: String
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: '"aac ,zaac,qaac,caac,.mp3,mp4a"'

MediaCapabilitiesEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

# FIXME: This is on by default in WebKit2. Perhaps we should consider turning it on for WebKitLegacy as well.
MediaCapabilitiesExtensionsEnabled:
  type: bool
  status: testable
  category: media
  humanReadableName: "Media Capabilities Extensions"
  humanReadableDescription: "Media Capabilities Extensions"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

MediaCaptionFormatTypesAllowedInLockdownMode:
  type: String
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: '"c608,wvtt"'

MediaCaptureRequiresSecureConnection:
  type: bool
  status: internal
  category: media
  inspectorOverride: true
  humanReadableName: "Limit Media Capture to Secure Sites"
  humanReadableDescription: "Limit Media Capture to Secure Sites"
  condition: ENABLE(MEDIA_STREAM)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

MediaCodecTypesAllowedInLockdownMode:
  type: String
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: '"mp4a.40,avc1"'

MediaContainerTypesAllowedInLockdownMode:
  type: String
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: '"video/mp4,audio/mp4,video/x-m4v,audio/x-m4a,audio/mp3,application/x-mpegURL,application/vnd.apple.mpegURL,video/mp2t,video/iso.segment,audio/aac,audio/mpeg,audio/ac3,audio/eac3,video/mpeg2,text/vtt"'

MediaContentTypesRequiringHardwareSupport:
  type: String
  status: embedder
  webcoreExcludeFromInternalSettings: true
  webcoreImplementation: custom
  defaultValue:
    WebKitLegacy:
      default: '""'
    WebKit:
      default: '""'
    WebCore:
      default: '""'

MediaControlsContextMenusEnabled:
  type: bool
  status: embedder
  condition: ENABLE(MEDIA_CONTROLS_CONTEXT_MENUS)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

MediaControlsScaleWithPageZoom:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebKit:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebCore:
      default: true

MediaDataLoadsAutomatically:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebKit:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebCore:
      "PLATFORM(IOS_FAMILY)": false
      default: true

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely (though we should still set the default value to false when initializing settings).
MediaDevicesEnabled:
  type: bool
  status: embedder
  humanReadableName: "Media devices"
  humanReadableDescription: "Enable media devices"
  condition: ENABLE(MEDIA_STREAM)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

MediaEnabled:
  type: bool
  status: embedder
  condition: ENABLE(VIDEO)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

MediaPreferredFullscreenWidth:
  type: double
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: 960
    WebKit:
      default: 960
    WebCore:
      default: 960

MediaPreloadingEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
MediaRecorderEnabled:
  type: bool
  status: stable
  category: media
  humanReadableName: "MediaRecorder"
  humanReadableDescription: "MediaRecorder"
  condition: ENABLE(MEDIA_RECORDER)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA)": true
      "USE(GSTREAMER_TRANSCODER)": true
      default: false
    WebCore:
      default: false

MediaSessionCoordinatorEnabled:
  type: bool
  status: stable
  category: media
  humanReadableName: "Experimental MediaSession coordinator API"
  humanReadableDescription: "Enable experimental MediaSession coordinator API"
  condition: ENABLE(MEDIA_SESSION_COORDINATOR)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: WebKit::defaultMediaSessionCoordinatorEnabled()
    WebCore:
      default: true

MediaSessionEnabled:
  type: bool
  status: mature
  humanReadableName: "Media Session API"
  humanReadableDescription: "Media Session API"
  condition: ENABLE(MEDIA_SESSION)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

MediaSessionPlaylistEnabled:
  type: bool
  status: stable
  category: media
  humanReadableName: "Experimental MediaSession playlist API"
  humanReadableDescription: "Enable experimental MediaSession playlist API"
  condition: ENABLE(MEDIA_SESSION_COORDINATOR) && ENABLE(MEDIA_SESSION_PLAYLIST)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: WebKit::defaultMediaSessionCoordinatorEnabled()
    WebCore:
      default: true

MediaSourceEnabled:
  type: bool
  status: stable
  category: media
  humanReadableName: "Media Source API"
  humanReadableDescription: "Media Source API"
  defaultValue:
    WebKitLegacy:
      "ENABLE(MEDIA_SOURCE) && PLATFORM(IOS_FAMILY)": WebKit::defaultMediaSourceEnabled()
      "ENABLE(MEDIA_SOURCE) && !PLATFORM(IOS_FAMILY)": true
      default: false
    WebKit:
      "ENABLE(MEDIA_SOURCE) && PLATFORM(IOS_FAMILY)": WebKit::defaultMediaSourceEnabled()
      "ENABLE(MEDIA_SOURCE) && !PLATFORM(IOS_FAMILY)": true
      default: false
    WebCore:
      "ENABLE(MEDIA_SOURCE)": true
      default: false

MediaSourceInlinePaintingEnabled:
  type: bool
  status: unstable
  category: media
  humanReadableName: "Experimental MediaSource Inline Painting"
  humanReadableDescription: "Experimental MediaSource Inline Painting"
  condition: ENABLE(MEDIA_SOURCE) && (HAVE(AVSAMPLEBUFFERVIDEOOUTPUT) || USE(GSTREAMER))
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      "HAVE(AVSAMPLEBUFFERDISPLAYLAYER_COPYDISPLAYEDPIXELBUFFER)": true
      default: false
    WebKit:
      "HAVE(AVSAMPLEBUFFERDISPLAYLAYER_COPYDISPLAYEDPIXELBUFFER)": true
      default: false

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely (though we should still set the default value to false when initializing settings).
# FIXME: Seems to be unused. Remove once verified.
MediaStreamEnabled:
  type: bool
  status: embedder
  condition: ENABLE(MEDIA_STREAM)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

MediaUserGestureInheritsFromDocument:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

MediaVideoCodecIDsAllowedInLockdownMode:
  type: String
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: '"avc1,zavc,qavc,cavc"'

MenuItemElementEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

MinimumFontSize:
  type: double
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      default: 0
    WebKit:
      default: 0
    WebCore:
      default: 0

MinimumLogicalFontSize:
  type: double
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      default: 9
    WebKit:
      default: 9
    WebCore:
      default: 0

MinimumZoomFontSize:
  type: double
  status: embedder
  webKitLegacyPreferenceKey: WebKitMinimumZoomFontSizePreferenceKey
  condition: ENABLE(TEXT_AUTOSIZING)
  defaultValue:
    WebKitLegacy:
      default: 15
    WebKit:
      "PLATFORM(WATCHOS)": 30
      default: 15
    WebCore:
      "PLATFORM(WATCHOS)": 30
      default: 15

MockCaptureDevicesEnabled:
  type: bool
  status: internal
  category: media
  webcoreOnChange: mockCaptureDevicesEnabledChanged
  inspectorOverride: true
  condition: ENABLE(MEDIA_STREAM)
  humanReadableName: "Enable Mock Capture Devices"
  humanReadableDescription: "Enable Mock Capture Devices"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY_SIMULATOR)": true
      default: false
    WebCore:
      default: false

MockCaptureDevicesPromptEnabled:
  type: bool
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

MockScrollbarsControllerEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

MockScrollbarsEnabled:
  type: bool
  status: embedder
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false

ModelDocumentEnabled:
  type: bool
  status: testable
  category: html
  humanReadableName: "HTML <model> elements for stand-alone document"
  humanReadableDescription: "Enable HTML <model> element for model documents"
  condition: ENABLE(MODEL_ELEMENT)
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false

ModelElementEnabled:
  type: bool
  status: testable
  category: html
  humanReadableName: "HTML <model> element"
  humanReadableDescription: "Enable HTML <model> element"
  condition: ENABLE(MODEL_ELEMENT)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

MomentumScrollingAnimatorEnabled:
  type: bool
  status: internal
  humanReadableName: "Momentum Scrolling Animator"
  humanReadableDescription: "Generate momentum events in WebKit instead of using those delivered by the system"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

MouseEventsSimulationEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "Mouse events simulation"
  humanReadableDescription: "Enable mouse events dispatch along with touch events on iOS"
  condition: ENABLE(TOUCH_EVENTS)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

MuteCameraOnMicrophoneInterruptionEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "Mute Camera on Microphone Interruption"
  humanReadableDescription: "Mute Camera on Microphone Interruption"
  condition: ENABLE(MEDIA_STREAM)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebCore:
      default: false

NeedsAdobeFrameReloadingQuirk:
  comment: 'FIXME: This quirk is needed because of Radar 4674537 and 5211271. We need
    to phase it out once Adobe can fix the bug from their end.'
  type: bool
  status: embedder
  webcoreGetter: needsAcrobatFrameReloadingQuirk
  defaultValue:
    WebKitLegacy:
      PLATFORM(MAC): WebKit::defaultNeedsAdobeFrameReloadingQuirk()
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

NeedsFrameNameFallbackToIdQuirk:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      PLATFORM(MAC): WebKit::defaultNeedsFrameNameFallbackToIdQuirk()
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

NeedsInAppBrowserPrivacyQuirks:
  type: bool
  status: internal
  category: dom
  defaultsOverridable: true
  humanReadableName: "Needs In-App Browser Privacy Quirks"
  humanReadableDescription: "Enable quirks needed to support In-App Browser privacy"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

NeedsKeyboardEventDisambiguationQuirks:
  comment: This is a quirk we are pro-actively applying to old applications. It changes
    keyboard event dispatching, making keyIdentifier available on keypress events,
    making charCode available on keydown/keyup events, and getting keypress dispatched
    in more cases.
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      PLATFORM(MAC): WebKit::defaultNeedsKeyboardEventDisambiguationQuirks()
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

NeedsSiteSpecificQuirks:
  type: bool
  status: embedder
  humanReadableName: "Needs Site-Specific Quirks"
  humanReadableDescription: "Enable site-specific quirks"
  webKitLegacyPreferenceKey: WebKitUseSiteSpecificSpoofing
  inspectorOverride: true
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

NeedsStorageAccessFromFileURLsQuirk:
  type: bool
  status: embedder
  humanReadableName: "Needs storage access from file URLs quirk"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

NotificationEventEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "NotificationEvent support"
  humanReadableDescription: "NotificationEvent and ServiceWorkerRegistration.showNotification() support"
  condition: ENABLE(NOTIFICATION_EVENT)
  defaultValue:
    WebCore:
      "ENABLE(NOTIFICATION_EVENT) && !PLATFORM(IOS_FAMILY)": true
      default: false
    WebKit:
      "ENABLE(NOTIFICATION_EVENT) && !PLATFORM(IOS_FAMILY)": true
      default: false

NotificationsEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Notifications"
  humanReadableDescription: "Enable the Notifications API"
  condition: ENABLE(NOTIFICATIONS)
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebKit:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebCore:
      "PLATFORM(IOS_FAMILY)": false
      default: true

OfflineWebApplicationCacheEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: WebKit::defaultOfflineWebApplicationCacheEnabled()
    WebCore:
      default: false

OffscreenCanvasEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "OffscreenCanvas"
  humanReadableDescription: "Support for the OffscreenCanvas APIs"
  condition: ENABLE(OFFSCREEN_CANVAS)
  defaultValue:
    WebKitLegacy:
      "PLATFORM(COCOA)": true
      default: false
    WebKit:
      "PLATFORM(COCOA)": true
      default: false
    WebCore:
      "PLATFORM(COCOA)": true
      default: false

OffscreenCanvasInWorkersEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "OffscreenCanvas in Workers"
  humanReadableDescription: "Support for the OffscreenCanvas APIs in Workers"
  condition: ENABLE(OFFSCREEN_CANVAS_IN_WORKERS)
  defaultValue:
    WebKitLegacy:
      "PLATFORM(COCOA)": true
      default: false
    WebKit:
      "PLATFORM(COCOA)": true
      default: false
    WebCore:
      "PLATFORM(COCOA)": true
      default: false

OpusDecoderEnabled:
  type: bool
  status: mature
  humanReadableName: "Opus audio decoder"
  humanReadableDescription: "Enable Opus audio decoder"
  condition: ENABLE(OPUS)
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true

OverflowClipEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS overflow: clip support"
  humanReadableDescription: "Enable CSS overflow: clip support"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

OverscrollBehaviorEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS Overscroll Behavior"
  humanReadableDescription: "Enable CSS overscroll-behavior"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(WIN) || PLATFORM(GTK) || PLATFORM(WPE)": false
      default: true
    WebCore:
      "PLATFORM(WIN) || PLATFORM(GTK) || PLATFORM(WPE)": false
      default: true

PDFPluginEnabled:
  type: bool
  status: embedder
  webcoreBinding: none
  condition: PLATFORM(COCOA)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

PageAtRuleSupportEnabled:
  type: bool
  status: unstable
  category: css
  humanReadableName: "@page CSS at-rule support"
  humanReadableDescription: "Enable @page support"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

PageVisibilityBasedProcessSuppressionEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "Page visibility-based process suppression"
  humanReadableDescription: "Enable page visibility-based process suppression"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

# FIXME: This is on by default in WebKit2. Perhaps we should consider turning it on for WebKitLegacy as well.
PaintTimingEnabled:
  type: bool
  status: mature
  humanReadableName: "Paint Timing"
  humanReadableDescription: "Enable PaintTiming API"
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true

PassiveTouchListenersAsDefaultOnDocument:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultPassiveTouchListenersAsDefaultOnDocument()
      default: true
    WebKit:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultPassiveTouchListenersAsDefaultOnDocument()
      default: true
    WebCore:
      default: true

PassiveWheelListenersAsDefaultOnDocument:
  type: bool
  status: embedder
  humanReadableName: "Wheel Event listeners on the root made passive"
  humanReadableDescription: "Force wheel event listeners registered on the window, document or body to be passive"
  defaultValue:
    WebKitLegacy:
      "PLATFORM(MAC)": WebKit::defaultPassiveWheelListenersAsDefaultOnDocument()
      default: true
    WebKit:
      "PLATFORM(MAC)": WebKit::defaultPassiveWheelListenersAsDefaultOnDocument()
      default: true
    WebCore:
      default: true

PasswordEchoDuration:
  type: double
  status: embedder
  webKitLegacyPreferenceKey: WebKitPasswordEchoDurationPreferenceKey
  webcoreName: passwordEchoDurationInSeconds
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": 2
      default: 1
    WebKit:
      default: 2
    WebCore:
      default: 1

PasswordEchoEnabled:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitEnablePasswordEchoPreferenceKey
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY) && !PLATFORM(MACCATALYST)": true
      default: false
    WebCore:
      default: false

PdfJSViewerEnabled:
  type: bool
  status: testable
  category: html
  humanReadableName: "Enable PDF.js viewer"
  humanReadableDescription: "Enable PDF.js viewer"
  condition: ENABLE(PDFJS)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(GTK) || PLATFORM(WPE)": true
      default: false
    WebCore:
      default: false

PeerConnectionEnabled:
  type: bool
  status: embedder
  humanReadableName: "WebRTC Peer Connection"
  humanReadableDescription: "Enable RTCPeerConnection"
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      "USE(LIBWEBRTC)": WebKit::defaultPeerConnectionEnabledAvailable()
      "USE(GSTREAMER_WEBRTC)": true
      default: false
    WebCore:
      default: true

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
PerElementSpeakerSelectionEnabled:
  type: bool
  status: testable
  category: media
  humanReadableName: "Allow per media element speaker device selection"
  humanReadableDescription: "Allow per media element speaker device selection"
  condition: ENABLE(MEDIA_STREAM)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

PerformanceNavigationTimingAPIEnabled:
  type: bool
  status: mature
  humanReadableName: "PerformanceNavigationTiming"
  humanReadableDescription: "Enable PerformanceNavigationTiming API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

PerformanceResourceTimingSensitivePropertiesEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "PerformanceResourceTiming.transferSize, encodedBodySize, and decodedBodySize"
  humanReadableDescription: "Enable all properties of PerformanceResourceTiming API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

PermissionsAPIEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Permissions API"
  humanReadableDescription: "Enable Permissions API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA) || PLATFORM(GTK) || PLATFORM(WPE)" : true
      default: false
    WebCore:
      default: false

PictographFontFamily:
  type: String
  status: embedder
  webKitLegacyPreferenceKey: WebKitPictographFont
  webcoreImplementation: custom
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": '"AppleColorEmoji"'
      default: '"Apple Color Emoji"'
    WebKit:
      "PLATFORM(COCOA) && PLATFORM(IOS_FAMILY)": '"AppleColorEmoji"'
      "PLATFORM(COCOA) && !PLATFORM(IOS_FAMILY)": '"Apple Color Emoji"'
      default: '"Times"'
    WebCore:
      default: '""'

PictureInPictureAPIEnabled:
  type: bool
  status: embedder
  condition: ENABLE(PICTURE_IN_PICTURE_API)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

PitchCorrectionAlgorithm:
  type: uint32_t
  refinedType: WebCore::MediaPlayerEnums::PitchCorrectionAlgorithm
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(COCOA)": static_cast<uint32_t>(WebCore::MediaPlayerEnums::PitchCorrectionAlgorithm::BestForSpeech)
      default: static_cast<uint32_t>(WebCore::MediaPlayerEnums::PitchCorrectionAlgorithm::BestAllAround)
    WebKit:
      "PLATFORM(COCOA)": static_cast<uint32_t>(WebCore::MediaPlayerEnums::PitchCorrectionAlgorithm::BestForSpeech)
      default: static_cast<uint32_t>(WebCore::MediaPlayerEnums::PitchCorrectionAlgorithm::BestAllAround)
    WebCore:
      default: MediaPlayerEnums::PitchCorrectionAlgorithm::BestAllAround

PluginsEnabled:
  type: bool
  status: embedder
  webcoreGetter: arePluginsEnabled
  webcoreOnChange: pluginsEnabledChanged
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: false
    WebCore:
      default: false

PopoverAttributeEnabled:
  type: bool
  status: stable
  category: html
  humanReadableName: "HTML popover attribute"
  humanReadableDescription: "Enable HTML popover attribute support"
  defaultValue:
    WebKitLegacy:
      default: WebKit::defaultPopoverAttributeEnabled()
    WebKit:
      default: WebKit::defaultPopoverAttributeEnabled()
    WebCore:
      default: true

PreferFasterClickOverDoubleTap:
  type: bool
  status: internal
  category: dom
  humanReadableName: "Fast clicks beat DTTZ"
  humanReadableDescription: "Prefer a faster click over a double tap"
  webcoreBinding: none
  condition: PLATFORM(IOS_FAMILY)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      "PLATFORM(IOS_FAMILY) && !PLATFORM(WATCHOS)": true
      default: false

PreferPageRenderingUpdatesNear60FPSEnabled:
  type: bool
  status: embedder
  humanReadableName: "Prefer Page Rendering Updates near 60fps"
  humanReadableDescription: "Prefer page rendering updates near 60 frames per second rather than using the display's refresh rate"
  defaultValue:
    WebKitLegacy:
      "ENABLE(FULL_SPEED_ANIMATION_LOOP)": false
      default: true
    WebKit:
      "ENABLE(FULL_SPEED_ANIMATION_LOOP)": false
      default: true
    WebCore:
      "ENABLE(FULL_SPEED_ANIMATION_LOOP)": false
      default: true

PreferSandboxedMediaParsing:
  type: bool
  status: internal
  category: media
  humanReadableName: "Prefer Sandboxed Parsing of Media"
  humanReadableDescription: "Prefer parsing media out-of-process in a sandboxed service"
  condition: ENABLE(VIDEO)
  defaultValue:
    WebCore:
      default: true
    WebKitLegacy:
      default: true
    WebKit:
      default: true

PriorityHintsEnabled:
  type: bool
  status: testable
  category: networking
  humanReadableName: "Priority hints"
  humanReadableDescription: "Enable priority hints support"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

PrivateClickMeasurementDebugModeEnabled:
  type: bool
  status: developer
  category: privacy
  humanReadableName: "Private Click Measurement Debug Mode"
  humanReadableDescription: "Enable Private Click Measurement Debug Mode"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

PrivateClickMeasurementEnabled:
  type: bool
  status: embedder
  humanReadableName: "Private Click Measurement"
  humanReadableDescription: "Enable Private Click Measurement for Cross-Site Link Navigations"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

PrivateClickMeasurementFraudPreventionEnabled:
  type: bool
  status: stable
  category: privacy
  humanReadableName: "Private Click Measurement Fraud Prevention"
  humanReadableDescription: "Enable Private Click Measurement Fraud Prevention"
  defaultValue:
    WebKit:
      "HAVE(RSA_BSSA)": true
      default: false
    WebCore:
      "HAVE(RSA_BSSA)": true
      default: false

ProcessSwapOnCrossSiteNavigationEnabled:
  type: bool
  status: stable
  category: networking
  humanReadableName: "Swap Processes on Cross-Site Navigation"
  humanReadableDescription: "Swap WebContent Processes on cross-site navigations"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      "PLATFORM(PLAYSTATION)": false
      default: true

PunchOutWhiteBackgroundsInDarkMode:
  type: bool
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

PushAPIEnabled:
  type: bool
  status: testable
  category: dom
  condition: ENABLE(SERVICE_WORKER)
  humanReadableName: "Push API"
  humanReadableDescription: "Enable Push API"
  defaultValue:
    WebCore:
      default: false
    WebKitLegacy:
      default: false
    WebKit:
      default: false

ReadableByteStreamAPIEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "ReadableByteStream"
  humanReadableDescription: "Enable Readable Byte Streams"
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false

# FIXME: This is on by default in WebKit2. Perhaps we should consider turning it on for WebKitLegacy as well.
ReferrerPolicyAttributeEnabled:
  type: bool
  status: mature
  humanReadableName: "Referrer Policy attribute"
  humanReadableDescription: "Enable Referrer Policy attribute"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

# FIXME: This is on by default in WebKit2. Perhaps we should consider turning it on for WebKitLegacy as well.
RemotePlaybackEnabled:
  type: bool
  status: mature
  humanReadableName: "Remote Playback API"
  humanReadableDescription: "Enable Remote Playback API"
  condition: ENABLE(WIRELESS_PLAYBACK_TARGET)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "HAVE(UIKIT_WEBKIT_INTERNALS)" : false
      default: true
    WebCore:
      "HAVE(UIKIT_WEBKIT_INTERNALS)" : false
      default: true

RemoveBackgroundEnabled:
  type: bool
  # FIXME: Change to "embedder" when there is a way to enable/disable embedder features from API tests.
  status: internal
  category: dom
  humanReadableName: "Remove Background"
  humanReadableDescription: "Enable Remove Background"
  condition: ENABLE(IMAGE_ANALYSIS_ENHANCEMENTS)
  exposed: [ WebKit ]
  defaultValue:
    WebCore:
      default: false
    WebKitLegacy:
      default: false
    WebKit:
      default: defaultRemoveBackgroundEnabled()

ReplayCGDisplayListsIntoBackingStore:
  type: bool
  status: internal
  humanReadableName: "CG Display Lists: Replay for Testing"
  humanReadableDescription: "Replay CG Display Lists into layer contents for testing"
  webcoreBinding: none
  condition: ENABLE(CG_DISPLAY_LIST_BACKED_IMAGE_BUFFER)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

ReportingEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Reporting API"
  humanReadableDescription: "Enable Reporting API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

RequestIdleCallbackEnabled:
  type: bool
  status: unstable
  category: dom
  humanReadableName: "requestIdleCallback"
  humanReadableDescription: "Enable requestIdleCallback support"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

RequestSubmitEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Form requestSubmit"
  humanReadableDescription: "Form requestSubmit method"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

RequestVideoFrameCallbackEnabled:
  type: bool
  status: stable
  category: media
  humanReadableName: "RequestVideoFrameCallback"
  humanReadableDescription: "Enable RequestVideoFrameCallback API"
  defaultValue:
    WebKitLegacy:
      "PLATFORM(COCOA) && HAVE(AVSAMPLEBUFFERVIDEOOUTPUT)" : true
      default: false
    WebKit:
      "PLATFORM(COCOA) && HAVE(AVSAMPLEBUFFERVIDEOOUTPUT)" : true
      "USE(GSTREAMER)": true
      default: false
    WebCore:
      "PLATFORM(COCOA) && HAVE(AVSAMPLEBUFFERVIDEOOUTPUT)" : true
      "USE(GSTREAMER)": true
      default: false

RequiresPageVisibilityToPlayAudio:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

RequiresUserGestureForAudioPlayback:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitAudioPlaybackRequiresUserGesture
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebCore:
      PLATFORM(IOS_FAMILY): true
      default: false

RequiresUserGestureForMediaPlayback:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitMediaPlaybackRequiresUserGesture
  webcoreBinding: none
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebKit:
      default: false

RequiresUserGestureForVideoPlayback:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitVideoPlaybackRequiresUserGesture
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

RequiresUserGestureToLoadVideo:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultRequiresUserGestureToLoadVideo()
      default: false
    WebKit:
      default: false
    WebCore:
      "PLATFORM(IOS_FAMILY)": true
      default: false

ResizeObserverEnabled:
  type: bool
  status: mature
  humanReadableName: "Resize Observer"
  humanReadableDescription: "Enable Resize Observer support"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

ResolutionMediaFeatureEnabled:
  type: bool
  status: stable
  category: media
  humanReadableName: "Resolution media feature"
  humanReadableDescription: "Enable resolution media feature support"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

ResourceLoadSchedulingEnabled:
  type: bool
  status: internal
  category: networking
  humanReadableName: "Resource Load Scheduling"
  humanReadableDescription: "Network process side priority and visibility based resource load scheduling"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

ResourceUsageOverlayVisible:
  type: bool
  status: internal
  category: networking
  defaultsOverridable: true
  humanReadableName: "Resource usage overlay"
  humanReadableDescription: "Make resource usage overlay visible"
  condition: ENABLE(RESOURCE_USAGE)
  webcoreOnChange: resourceUsageOverlayVisibleChanged
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: This is not relevent for WebKitLegacy, so should be excluded from WebKitLegacy entirely.
RestrictedHTTPResponseAccess:
  type: bool
  status: internal
  category: networking
  humanReadableName: "Filter HTTP Response for Web Processes"
  humanReadableDescription: "Enable HTTP Response filtering for Web Processes"
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true

RubberBandingForSubScrollableRegionsEnabled:
  type: bool
  status: embedder
  condition: HAVE(RUBBER_BANDING)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

SKAttributionEnabled:
  type: bool
  status: embedder
  humanReadableName: "SKAttribution"
  humanReadableDescription: "SKAttribution"
  defaultValue:
    WebCore:
      default: true
    WebKitLegacy:
      default: true
    WebKit:
      default: true

SafeBrowsingEnabled:
  type: bool
  status: embedder
  humanReadableName: "Safe Browsing"
  humanReadableDescription: "Enable Safe Browsing"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

SampleBufferContentKeySessionSupportEnabled:
  type: bool
  status: unstable
  category: media
  humanReadableName: "ContentKeySession support for SampleBuffer Renderers"
  humanReadableDescription: "ContentKeySession support for SampleBuffer Renderers Enabled"
  webcoreOnChange: sampleBufferContentKeySessionSupportEnabledChanged
  condition: HAVE(AVCONTENTKEYSPECIFIER)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: WebKit::defaultSampleBufferContentKeySessionSupportEnabled()
    WebCore:
      default: false

SampledPageTopColorMaxDifference:
  type: double
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: 0
    WebKit:
      default: 0
    WebCore:
      default: 0

SampledPageTopColorMinHeight:
  type: double
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: 0
    WebKit:
      default: 0
    WebCore:
      default: 0

SanitizeLookalikeCharactersInLinksEnabled:
  type: bool
  status: embedder
  humanReadableName: "Sanitize Lookalike Characters in Links"
  humanReadableDescription: "Enable Sanitization for Lookalike Characters in Links"
  webcoreBinding: none
  condition: ENABLE(NETWORK_CONNECTION_INTEGRITY)
  defaultValue:
    WebKit:
      default: true

SansSerifFontFamily:
  type: String
  status: embedder
  webKitLegacyPreferenceKey: WebKitSansSerifFont
  webcoreImplementation: custom
  defaultValue:
    WebKitLegacy:
      default: '"Helvetica"'
    WebKit:
      default: '"Helvetica"'
    WebCore:
      default: '""'

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
# FIXME: This should have it's own ENABLE.
ScreenCaptureEnabled:
  type: bool
  status: stable
  category: media
  condition: ENABLE(MEDIA_STREAM)
  humanReadableName: "ScreenCapture"
  humanReadableDescription: "Enable ScreenCapture"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(MAC) || USE(GSTREAMER)": true
      default: false
    WebCore:
      default: false

ScreenOrientationAPIEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Screen Orientation API"
  humanReadableDescription: "Enable Screen Orientation API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: WebKit::defaultShouldEnableScreenOrientationAPI()
    WebCore:
      default: false

ScreenOrientationLockingAPIEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "Screen Orientation API (Locking / Unlocking)"
  humanReadableDescription: "Enable Screen Orientation API (Locking / Unlocking)"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ScreenWakeLockAPIEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Screen Wake Lock API"
  humanReadableDescription: "Enable Screen Wake Lock API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

ScrollAnimatorEnabled:
  type: bool
  status: embedder
  humanReadableName: "Scroll animator"
  humanReadableDescription: "Enable scroll animator"
  defaultValue:
    WebKitLegacy:
      "PLATFORM(MAC)": WebKit::defaultScrollAnimatorEnabled()
      "PLATFORM(GTK) || PLATFORM(WPE)": true
      default: false
    WebKit:
      "PLATFORM(MAC)": WebKit::defaultScrollAnimatorEnabled()
      "PLATFORM(GTK) || PLATFORM(WPE)": true
      default: false
    WebCore:
      default: false

ScrollToTextFragmentEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Scroll To Text Fragment"
  humanReadableDescription: "Enable Scroll To Text Fragment"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

ScrollToTextFragmentIndicatorEnabled:
  type: bool
  status: embedder
  humanReadableName: "Scroll To Text Fragment Indicator"
  humanReadableDescription: "Enable Scroll To Text Fragment Indicator"
  defaultValue:
    WebKit:
      default: true
    WebKitLegacy:
      default: true
    WebCore:
      default: true

ScrollingPerformanceTestingEnabled:
  type: bool
  status: internal
  humanReadableName: "Scroll Performance Testing Enabled"
  humanReadableDescription: "Enable behaviors used by scrolling performance tests"
  webcoreOnChange: scrollingPerformanceTestingEnabledChanged
  exposed: [ WebKit ]
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

SecureContextChecksEnabled:
  type: bool
  status: internal
  category: security
  humanReadableName: "Secure Context Checks"
  humanReadableDescription: "Allow access to HTTPS-only Web APIs over HTTP"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

# FIXME: This is handled via WebView SPI rather than WebPreferences for WebKitLegacy. We should change the SPI to lookup the WebPreferences value instead.
SelectTrailingWhitespaceEnabled:
  type: bool
  status: embedder
  webKitLegacyBinding: custom
  defaultValue:
    WebKit:
      default: false
    WebKitLegacy:
      default: false
    WebCore:
      default: false

SelectionAPIForShadowDOMEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Selection API for shadow DOM"
  humanReadableDescription: "Enable selection API for shadow DOM"
  defaultValue:
    WebKit:
      default: true
    WebKitLegacy:
      default: true
    WebCore:
      default: true

SelectionFlippingEnabled:
  type: bool
  status: embedder
  humanReadableName: "Selection Flipping"
  humanReadableDescription: "Enable Selection Flipping"
  webcoreBinding: none
  defaultValue:
    WebKit:
      "HAVE(UIKIT_WEBKIT_INTERNALS)" : false
      default: true

SerifFontFamily:
  type: String
  status: embedder
  webKitLegacyPreferenceKey: WebKitSerifFont
  webcoreImplementation: custom
  defaultValue:
    WebKitLegacy:
      default: '"Times"'
    WebKit:
      default: '"Times"'
    WebCore:
      default: '""'

ServerTimingEnabled:
  type: bool
  status: stable
  category: networking
  humanReadableName: "Server Timing"
  humanReadableDescription: "Enable Server Timing API"
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true

ServiceControlsEnabled:
  type: bool
  status: embedder
  condition: ENABLE(SERVICE_CONTROLS)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ServiceWorkerEntitlementDisabledForTesting:
  type: bool
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

ServiceWorkerNavigationPreloadEnabled:
  type: bool
  status: stable
  category: networking
  humanReadableName: "Service Worker Navigation Preload"
  humanReadableDescription: "Enable Service Worker Navigation Preload API"
  condition: ENABLE(SERVICE_WORKER)
  defaultValue:
    WebCore:
      default: true
    WebKitLegacy:
      default: false
    WebKit:
      default: true

ServiceWorkersEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Service Workers"
  humanReadableDescription: "Enable Service Workers"
  condition: ENABLE(SERVICE_WORKER)
  exposed: [ WebKit ]
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

ServiceWorkersUserGestureEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "Validate UserGesture requirements in Service Workers"
  humanReadableDescription: "Validate UserGesture requirements in Service Workers"
  condition: ENABLE(SERVICE_WORKER)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

ShapeDetection:
  type: bool
  status: unstable
  humanReadableName: "Shape Detection API"
  humanReadableDescription: "Enable the Shape Detection API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

SharedWorkerEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "SharedWorker"
  humanReadableDescription: "Enabled SharedWorker API"
  defaultValue:
    WebCore:
      default: false
    WebKitLegacy:
      default: false
    WebKit:
      default: true

ShouldAllowUserInstalledFonts:
  type: bool
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

ShouldConvertInvalidURLsToBlank:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: WebKit::defaultShouldConvertInvalidURLsToBlank()
    WebKit:
      default: true
    WebCore:
      default: true

ShouldConvertPositionStyleOnCopy:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ShouldDecidePolicyBeforeLoadingQuickLookPreview:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ShouldDeferAsynchronousScriptsUntilAfterDocumentLoadOrFirstPaint:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Defer async scripts until DOMContentLoaded or first-paint"
  humanReadableDescription: "Defer async scripts until DOMContentLoaded or first-paint"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

ShouldDisplayCaptions:
  type: bool
  status: embedder
  condition: ENABLE(VIDEO)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ShouldDisplaySubtitles:
  type: bool
  status: embedder
  condition: ENABLE(VIDEO)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ShouldDisplayTextDescriptions:
  type: bool
  status: embedder
  condition: ENABLE(VIDEO)
  defaultValue: 
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ShouldDropSuspendedAssertionAfterDelay:
  type: bool
  status: internal
  humanReadableName: "Drop Suspended Assertion After Delay"
  humanReadableDescription: "Causes processes to fully suspend after a delay"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: WebKit::defaultShouldDropSuspendedAssertionAfterDelay()
    WebCore:
      default: false

ShouldEnableTextAutosizingBoost:
  type: bool
  status: embedder
  webcoreOnChange: shouldEnableTextAutosizingBoostChanged
  condition: ENABLE(TEXT_AUTOSIZING)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely (though we should still set the default value to false when initializing settings).
ShouldIgnoreMetaViewport:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ShouldPrintBackgrounds:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitShouldPrintBackgroundsPreferenceKey
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultShouldPrintBackgrounds()
      default: false
    WebCore:
      default: false

ShouldRespectImageOrientation:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebCore:
      "PLATFORM(IOS_FAMILY)": true
      default: false

ShouldRestrictBaseURLSchemes:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: WebKit::defaultShouldRestrictBaseURLSchemes()
    WebKit:
      default: false
    WebCore:
      default: true

ShouldSuppressTextInputFromEditingDuringProvisionalNavigation:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ShouldTakeSuspendedAssertions:
  type: bool
  status: internal
  category: dom
  humanReadableName: "Take WebKit:Suspended assertions on background web content processes"
  humanReadableDescription: "Take WebKit:Suspended assertions on background web content processes"
  exposed: [ WebKit ]
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

# FIXME: This is not relevent for WebKitLegacy, so should be excluded from WebKitLegacy entirely (though we should still set the default value to false when initializing settings).
# FIXME: This is not used in WebCore, so should not have a binding to WebCore::Settings.
ShouldUseServiceWorkerShortTimeout:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ShowMediaStatsContextMenuItemEnabled:
  type: bool
  status: developer
  category: media
  humanReadableName: "Show Media Stats"
  humanReadableDescription: "Adds a 'Media Stats' context menu item to <video> when the Develop menu is enabled"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ShowModalDialogEnabled:
  type: bool
  status: developer
  category: dom
  humanReadableName: "Legacy showModalDialog() API"
  humanReadableDescription: "Legacy showModalDialog() API"
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultShowModalDialogEnabled()
      default: false
    WebKit:
      default: WebKit::defaultShowModalDialogEnabled()
    WebCore:
      default: false

ShowsToolTipOverTruncatedText:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ShowsURLsInToolTipsEnabled:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitShowsURLsInToolTips
  webcoreName: showsURLsInToolTips
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ShrinksStandaloneImagesToFit:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

SiteIsolationEnabled:
  type: bool
  status: unstable
  category: security
  humanReadableName: "Site Isolation"
  humanReadableDescription: "Put cross-origin iframes in a different process"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: This is handled via WebView SPI rather than WebPreferences for WebKitLegacy. We should change the SPI to lookup the WebPreferences value instead.
SmartInsertDeleteEnabled:
  type: bool
  status: embedder
  webKitLegacyBinding: custom
  defaultValue:
    WebKit:
      default: true
    WebKitLegacy:
      default: true
    WebCore:
      default: true

SourceBufferChangeTypeEnabled:
  type: bool
  status: embedder
  condition: ENABLE(MEDIA_SOURCE)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      "USE(GSTREAMER)": false
      default: true
    WebCore:
      "USE(GSTREAMER)": false
      default: true

SpatialNavigationEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
SpeakerSelectionRequiresUserGesture:
  type: bool
  status: internal
  category: media
  humanReadableName: "Require a user gesture for speaker selection"
  humanReadableDescription: "Require a user gesture for speaker selection"
  condition: ENABLE(MEDIA_STREAM)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

SpeechRecognitionEnabled:
  type: bool
  status: mature
  humanReadableName: "SpeechRecognition API"
  humanReadableDescription: "Enable SpeechRecognition of WebSpeech API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "HAVE(SPEECHRECOGNIZER) && ENABLE(MEDIA_STREAM)": true
      default: false
    WebCore:
      default: false

SpeechSynthesisAPIEnabled:
  type: bool
  status: embedder
  humanReadableName: "SpeechSynthesis API"
  humanReadableDescription: "SpeechSynthesis API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

SpringTimingFunctionEnabled:
  type: bool
  status: unstable
  category: css
  humanReadableName: "CSS Spring Animations"
  humanReadableDescription: "CSS Spring Animation prototype"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "ENABLE(EXPERIMENTAL_FEATURES)" : true
      default: false
    WebCore:
      default: false

Standalone:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitStandalonePreferenceKey
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

StandardFontFamily:
  type: String
  status: embedder
  webKitLegacyPreferenceKey: WebKitStandardFont
  webcoreImplementation: custom
  defaultValue:
    WebKitLegacy:
      default: '"Times"'
    WebKit:
      "PLATFORM(WATCHOS)": '"system-ui"'
      default: '"Times"'
    WebCore:
      default: '""'

StorageAPIEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Storage API"
  humanReadableDescription: "Enable Storage API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA)" : true
      default: false
    WebCore:
      "PLATFORM(COCOA)" : true
      default: false

StorageAPIEstimateEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Storage API Estimate"
  humanReadableDescription: "Enable Storage API Estimate"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA)" : true
      default: false
    WebCore:
      "PLATFORM(COCOA)" : true
      default: false

StorageAccessAPIEnabled:
  type: bool
  status: mature
  humanReadableName: "Storage Access API"
  humanReadableDescription: "Enable Storage Access API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

StorageBlockingPolicy:
  type: uint32_t
  humanReadableName: "Storage Blocking Policy"
  refinedType: WebCore::StorageBlockingPolicy
  status: embedder
  webcoreOnChange: storageBlockingPolicyChanged
  defaultValue:
    WebKitLegacy:
      default: WebAllowAllStorage
    WebKit:
      default: WebCore::StorageBlockingPolicy::BlockThirdParty
    WebCore:
      default: StorageBlockingPolicy::AllowAll

SubgridEnabled:
  type: bool
  status: stable
  category: css
  humanReadableName: "CSS subgrid support"
  humanReadableDescription: "Enable CSS subgrid support"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

SuppressesIncrementalRendering:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

SyntheticEditingCommandsEnabled:
  type: bool
  status: mature
  humanReadableName: "Synthetic Editing Commands"
  humanReadableDescription: "Enable Synthetic Editing Commands"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

# FIXME: There is no custom binding implemented for WebKitLegacy.
SystemLayoutDirection:
  type: uint32_t
  refinedType: WebCore::TextDirection
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: TextDirection::LTR
    WebKit:
      default: TextDirection::LTR
    WebCore:
      default: TextDirection::LTR

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely (though we should still set the default value to false when initializing settings).
SystemPreviewEnabled:
  type: bool
  status: embedder
  condition: USE(SYSTEM_PREVIEW)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

TabsToLinks:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitTabToLinksPreferenceKey
  webcoreBinding: none
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(GTK)": true
      default: false

TelephoneNumberParsingEnabled:
  type: bool
  status: embedder
  webKitLegacyPreferenceKey: WebKitTelephoneParsingEnabledPreferenceKey
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

TemporaryTileCohortRetentionEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebCore:
      default: true

TextAreasAreResizable:
  type: bool
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": false
      default: true
    WebCore:
      default: false

TextAutosizingEnabled:
  type: bool
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  condition: ENABLE(TEXT_AUTOSIZING)
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": true
      default: false
    WebCore:
      "PLATFORM(IOS_FAMILY)": true
      default: false

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
TextAutosizingUsesIdempotentMode:
  type: bool
  status: embedder
  webcoreOnChange: textAutosizingUsesIdempotentModeChanged
  humanReadableName: "Idempotent Text Autosizing"
  humanReadableDescription: "Use idempotent text autosizing mode"
  condition: ENABLE(TEXT_AUTOSIZING)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(IOS_FAMILY)": defaultTextAutosizingUsesIdempotentMode()
      default: false
    WebCore:
      default: false

TextInteractionEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(WATCHOS)": false
      default: true
    WebKit:
      "PLATFORM(WATCHOS)": false
      default: true
    WebCore:
      "PLATFORM(WATCHOS)": false
      default: true

TextRecognitionInVideosEnabled:
  type: bool
  # FIXME: Change to "embedder" when there is a way to enable/disable embedder features from API tests.
  status: internal
  category: media
  humanReadableName: "Text Recognition in Videos"
  humanReadableDescription: "Enable Text Recognition in Videos"
  condition: ENABLE(IMAGE_ANALYSIS)
  exposed: [ WebKit ]
  defaultValue:
    WebCore:
      default: false
    WebKitLegacy:
      default: false
    WebKit:
      default: defaultTextRecognitionInVideosEnabled()

ThirdPartyIframeRedirectBlockingEnabled:
  type: bool
  status: mature
  humanReadableName: "Block top-level redirects by third-party iframes"
  humanReadableDescription: "Block top-level redirects by third-party iframes"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

ThreadedAnimationResolutionEnabled:
  type: bool
  status: unstable
  category: animation
  humanReadableName: "Threaded animation resolution"
  humanReadableDescription: "Run accelerated animations on a separate thread"
  condition: ENABLE(THREADED_ANIMATION_RESOLUTION)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ThreadedScrollingEnabled:
  type: bool
  status: embedder
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

# FIXME: This is not relevent for WebKitLegacy, so should be excluded from WebKitLegacy entirely.
TiledScrollingIndicatorVisible:
  type: bool
  status: internal
  defaultsOverridable: true
  humanReadableName: "Tiled scrolling indicator"
  humanReadableDescription: "Make tiled scrolling indicator visible"
  webcoreName: showTiledScrollingIndicator
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

TouchEventsEnabled:
  type: bool
  status: embedder
  humanReadableName: "Touch Events"
  humanReadableDescription: "Enable Touch Events"
  condition: ENABLE(TOUCH_EVENTS)
  defaultValue:
    WebCore:
      default: WebCore::screenHasTouchDevice()

TrackConfigurationEnabled:
  type: bool
  status: testable
  category: media
  humanReadableName: "Track Configuration API"
  humanReadableDescription: "Track Configuration API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

TransformStreamAPIEnabled:
  type: bool
  status: mature
  humanReadableName: "TransformStream API"
  humanReadableDescription: "Enable Transform Stream API"
  defaultValue:
    WebCore:
      default: true
    WebKitLegacy:
      default: true
    WebKit:
      default: true

TreatsAnyTextCSSLinkAsStylesheet:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      PLATFORM(MAC): WebKit::defaultTreatsAnyTextCSSLinkAsStylesheet()
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
UndoManagerAPIEnabled:
  type: bool
  status: unstable
  category: dom
  humanReadableName: "UndoManager DOM API"
  humanReadableDescription: "Enable the UndoManager DOM API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

UnprefixedFullscreenAPIEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Unprefixed Fullscreen API"
  humanReadableDescription: "Enable Unprefixed Fullscreen API"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

UpgradeKnownHostsToHTTPSEnabled:
  type: bool
  status: internal
  category: networking
  humanReadableName: "Upgrade known hosts to HTTPS"
  humanReadableDescription: "Upgrade known hosts to HTTPS"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

UseARKitForModel:
  type: bool
  status: internal
  humanReadableName: "Use ARKit for <model>"
  humanReadableDescription: "Use ARKit for <model>"
  webcoreBinding: none
  exposed: [ WebKit ]
  condition: ENABLE(ARKIT_INLINE_PREVIEW)
  defaultValue:
    WebKit:
      default: true

UseCGDisplayListImageCache:
  type: bool
  status: internal
  humanReadableName: "CG Display Lists: Image Cache"
  humanReadableDescription: "Cache and transmit surfaces out-of-line for CG Display List image buffers."
  webcoreBinding: none
  condition: ENABLE(CG_DISPLAY_LIST_BACKED_IMAGE_BUFFER)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

UseCGDisplayListsForDOMRendering:
  type: bool
  status: internal
  humanReadableName: "CG Display Lists: DOM Rendering"
  humanReadableDescription: "Use CG Display Lists for DOM rendering"
  webcoreBinding: none
  condition: ENABLE(CG_DISPLAY_LIST_BACKED_IMAGE_BUFFER)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

UseGPUProcessForCanvasRenderingEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "GPU Process: Canvas Rendering"
  humanReadableDescription: "Enable canvas rendering in GPU Process"
  webcoreBinding: none
  condition: ENABLE(GPU_PROCESS) && !(PLATFORM(GTK) || PLATFORM(WPE))
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      "ENABLE(GPU_PROCESS_BY_DEFAULT)": true
      "USE(GRAPHICS_LAYER_WC)": true
      default: false

UseGPUProcessForDOMRenderingEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "GPU Process: DOM Rendering"
  humanReadableDescription: "Enable DOM rendering in GPU Process"
  webcoreBinding: none
  condition: ENABLE(GPU_PROCESS)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      "ENABLE(GPU_PROCESS_BY_DEFAULT) && ENABLE(GPU_PROCESS_DOM_RENDERING_BY_DEFAULT)": true
      "USE(GRAPHICS_LAYER_WC)": true
      default: false

UseGPUProcessForDisplayCapture:
  type: bool
  status: stable
  category: media
  humanReadableName: "GPU Process: Screen and Window capture"
  humanReadableDescription: "Display capture in GPU Process"
  webcoreBinding: none
  condition: HAVE(SCREEN_CAPTURE_KIT)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

UseGPUProcessForMediaEnabled:
  type: bool
  status: embedder
  humanReadableName: "GPU Process: Media"
  humanReadableDescription: "Do all media loading and playback in the GPU Process"
  webcoreBinding: none
  condition: ENABLE(GPU_PROCESS) && !USE(GSTREAMER)
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      "ENABLE(GPU_PROCESS_BY_DEFAULT)": true
      default: false

UseGPUProcessForWebGLEnabled:
  type: bool
  status: internal
  humanReadableName: "GPU Process: WebGL"
  humanReadableDescription: "Process all WebGL operations in GPU Process"
  condition: ENABLE(GPU_PROCESS) && ENABLE(WEBGL)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "ENABLE(GPU_PROCESS_BY_DEFAULT) && ENABLE(GPU_PROCESS_WEBGL_BY_DEFAULT)": true
      "USE(GRAPHICS_LAYER_WC)": true
      default: false
    WebCore:
      "ENABLE(GPU_PROCESS_BY_DEFAULT) && ENABLE(GPU_PROCESS_WEBGL_BY_DEFAULT)": true
      "USE(GRAPHICS_LAYER_WC)": true
      default: false

UseGeneralDirectoryForStorage:
  type: bool
  status: internal
  category: dom
  humanReadableName: "Use General Directory For Storage"
  humanReadableDescription: "Use general storage directory for IndexedDB and LocalStorage"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: true

UseGiantTiles:
  type: bool
  status: embedder
  humanReadableName: "Use giant tiles"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

UseImageDocumentForSubframePDF:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      PLATFORM(IOS_FAMILY): true
      default: false
    WebKit:
      PLATFORM(IOS_FAMILY): true
      default: false
    WebCore:
      PLATFORM(IOS_FAMILY): true
      default: false

UseLegacyBackgroundSizeShorthandBehavior:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: WebKit::defaultUseLegacyBackgroundSizeShorthandBehavior()
    WebKit:
      default: false
    WebCore:
      default: false

UsePreHTML5ParserQuirks:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      PLATFORM(MAC): WebKit::defaultUsePreHTML5ParserQuirks()
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

UseSCContentSharingPicker:
  type: bool
  status: internal
  humanReadableName: "Use SCContentSharingPicker"
  humanReadableDescription: "Use SCContentSharingPicker when available"
  condition: HAVE(SC_CONTENT_SHARING_PICKER)
  defaultValue:
    WebKit:
      default: WebKit::defaultUseSCContentSharingPicker()
    WebCore:
      default: false

UseSceneKitForModel:
  type: bool
  status: unstable
  humanReadableName: "Use SceneKit for <model>"
  humanReadableDescription: "Use SceneKit for <model>"
  webcoreBinding: none
  exposed: [ WebKit ]
  condition: HAVE(SCENEKIT)
  defaultValue:
    WebKit:
      default: false

UserActivationAPIEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "User Activation API"
  humanReadableDescription: "Enable User Activation API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

UserGesturePromisePropagationEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "UserGesture Promise Propagation"
  humanReadableDescription: "UserGesture Promise Propagation"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

# FIXME: There is no custom binding implemented for WebKitLegacy.
UserInterfaceDirectionPolicy:
  type: uint32_t
  refinedType: WebCore::UserInterfaceDirectionPolicy
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: UserInterfaceDirectionPolicy::Content
    WebKit:
      default: UserInterfaceDirectionPolicy::Content
    WebCore:
      default: UserInterfaceDirectionPolicy::Content

UsesBackForwardCache:
  type: bool
  status: embedder
  webcoreOnChange: usesBackForwardCacheChanged
  webcoreExcludeFromInternalSettings: true
  webKitLegacyPreferenceKey: WebKitUsesPageCachePreferenceKey
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

UsesEncodingDetector:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

VP8DecoderEnabled:
  type: bool
  status: embedder
  webcoreBinding: none
  condition: ENABLE(VP9)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true

VP9DecoderEnabled:
  type: bool
  status: embedder
  condition: ENABLE(VP9)
  defaultValue:
    WebCore:
      default: false
    WebKitLegacy:
      default: false
    WebKit:
      default: true

VP9SWDecoderEnabledOnBattery:
  type: bool
  status: internal
  category: media
  humanReadableName: "VP9 SW decoder on battery"
  humanReadableDescription: "Enable VP9 SW decoder on battery"
  webcoreBinding: none
  condition: ENABLE(VP9)
  defaultValue:
    WebKit:
      default: false

VerifyWindowOpenUserGestureFromUIProcess:
  type: bool
  status: testable
  category: security
  humanReadableName: "Verify window.open user gesture"
  humanReadableDescription: "Verifies that the user gesture for window.open came from the UI process"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

VerticalFormControlsEnabled:
  type: bool
  status: testable
  category: html
  humanReadableName: "Vertical form control support"
  humanReadableDescription: "Enable support for form controls in vertical writing mode"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

VideoFullscreenRequiresElementFullscreen:
  type: bool
  status: embedder
  condition: PLATFORM(IOS_FAMILY)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false
      
VideoPresentationModeAPIEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "HAVE(UIKIT_WEBKIT_INTERNALS)" : false
      default: true
    WebKit:
      "HAVE(UIKIT_WEBKIT_INTERNALS)" : false
      default: true
    WebCore:
      "HAVE(UIKIT_WEBKIT_INTERNALS)" : false
      default: true

VideoQualityIncludesDisplayCompositingEnabled:
  type: bool
  status: embedder
  condition: ENABLE(VIDEO)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

ViewGestureDebuggingEnabled:
  type: bool
  status: embedder
  humanReadableName: "View gesture debugging"
  humanReadableDescription: "Enable view gesture debugging"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false

VisibleDebugOverlayRegions:
  type: uint32_t
  status: embedder
  defaultsOverridable: true
  webcoreType: DebugOverlayRegions
  defaultValue:
    WebKitLegacy:
      default: 0
    WebKit:
      default: 0
    WebCore:
      default: 0

VisualTranslationEnabled:
  type: bool
  # FIXME: Change to "embedder" when there is a way to enable/disable embedder features from API tests.
  status: internal
  category: dom
  humanReadableName: "Visual Translation"
  humanReadableDescription: "Enable Visual Translation"
  condition: ENABLE(IMAGE_ANALYSIS)
  exposed: [ WebKit ]
  defaultValue:
    WebCore:
      default: false
    WebKitLegacy:
      default: false
    WebKit:
      default: defaultVisualTranslationEnabled()

VisualViewportAPIEnabled:
  type: bool
  status: mature
  humanReadableName: "Visual Viewport API"
  humanReadableDescription: "Enable Visual Viewport API"
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)" : false
      default: true
    WebKit:
      default: true
    WebCore:
      default: false

VisualViewportEnabled:
  type: bool
  status: embedder
  webcoreOnChange: setNeedsRecalcStyleInAllFrames
  defaultValue:
    WebKitLegacy:
      PLATFORM(IOS_FAMILY): false
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

VorbisDecoderEnabled:
  type: bool
  status: mature
  humanReadableName: "Vorbis audio decoder"
  humanReadableDescription: "Enable Vorbis audio decoder"
  condition: ENABLE(VORBIS)
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true

WantsBalancedSetDefersLoadingBehavior:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebAPIStatisticsEnabled:
  type: bool
  status: unstable
  category: dom
  humanReadableName: "Web API Statistics"
  humanReadableDescription: "Enable Web API Statistics"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebAPIsInShadowRealmEnabled:
  type: bool
  status: unstable
  category: dom
  humanReadableName: "Web APIs in ShadowRealm"
  humanReadableDescription: "Enable Web APIs to be exposed in ShadowRealm"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebAnimationsCompositeOperationsEnabled:
  type: bool
  status: stable
  category: animation
  humanReadableName: "Web Animations composite operations"
  humanReadableDescription: "Support for the CompositeOperation enum and properties consuming it"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

WebAnimationsCustomEffectsEnabled:
  type: bool
  status: testable
  category: animation
  humanReadableName: "Web Animations custom effects"
  humanReadableDescription: "Support for the CustomEffect interface"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebAnimationsCustomFrameRateEnabled:
  type: bool
  status: testable
  category: animation
  humanReadableName: "Web Animations custom frame rate"
  humanReadableDescription: "Support for specifying a custom frame rate for Web Animations"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebAnimationsIterationCompositeEnabled:
  type: bool
  status: stable
  category: animation
  humanReadableName: "Web Animations iteration composite"
  humanReadableDescription: "Support for the KeyframeEffect.iterationComposite property"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

WebAnimationsMutableTimelinesEnabled:
  type: bool
  status: stable
  category: animation
  humanReadableName: "Web Animations mutable timelines"
  humanReadableDescription: "Support for setting the timeline property of an Animation object"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

WebArchiveDebugModeEnabled:
  type: bool
  status: embedder
  humanReadableName: "Web Archive debug mode"
  humanReadableDescription: "Enable web archive debug mode"
  webKitLegacyPreferenceKey: WebKitWebArchiveDebugModeEnabledPreferenceKey
  condition: ENABLE(WEB_ARCHIVE)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebArchiveTestingModeEnabled:
  type: bool
  status: internal
  category: dom
  humanReadableName: "Web Archive testing mode"
  humanReadableDescription: "Enable web archive testing mode"
  condition: ENABLE(WEB_ARCHIVE)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebAssemblyESMIntegrationEnabled:
  type: bool
  status: testable
  category: javascript
  humanReadableName: "WebAssembly ES module integration support"
  humanReadableDescription: "Support for allowing WebAssembly modules to integrate as ES modules"
  condition: ENABLE(WEBASSEMBLY)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebAudioEnabled:
  type: bool
  status: embedder
  condition: ENABLE(WEB_AUDIO)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: false

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
WebAuthenticationEnabled:
  type: bool
  status: embedder
  humanReadableName: "Web Authentication"
  humanReadableDescription: "Enable Web Authentication support"
  condition: ENABLE(WEB_AUTHN)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

WebCodecsAV1Enabled:
  type: bool
  status: preview
  category: media
  humanReadableName: "WebCodecs AV1 codec"
  humanReadableDescription: "Enable WebCodecs AV1 codec"
  condition: ENABLE(WEB_CODECS)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebCodecsEnabled:
  type: bool
  status: stable
  category: media
  humanReadableName: "WebCodecs API"
  humanReadableDescription: "Enable WebCodecs API"
  condition: ENABLE(WEB_CODECS)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA)": true
      "USE(GSTREAMER)": true
      default: false
    WebCore:
      "PLATFORM(COCOA)": true
      "USE(GSTREAMER)": true
      default: false

WebCryptoSafeCurvesEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Web Crypto Safe Curves"
  humanReadableDescription: "Enable Web Crypto Safe Curves"
  defaultValue:
    WebKitLegacy:
      "PLATFORM(COCOA)": true
      default: false
    WebKit:
      "PLATFORM(COCOA)": true
      default: false
    WebCore:
      "PLATFORM(COCOA)": true
      default: false

WebGLDraftExtensionsEnabled:
  type: bool
  status: unstable
  humanReadableName: "WebGL Draft Extensions"
  humanReadableDescription: "Enable WebGL extensions that are still in draft status"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebGLEnabled:
  type: bool
  status: mature
  humanReadableName: "WebGL"
  humanReadableDescription: "Enable WebGL"
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: false

WebGLTimerQueriesEnabled:
  type: bool
  status: developer
  category: dom
  humanReadableName: "WebGL Timer Queries"
  humanReadableDescription: "Enable WebGL extensions that provide GPU timer queries"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebGLUsingMetal:
  type: bool
  status: testable
  category: dom
  humanReadableName: "WebGL via Metal"
  humanReadableDescription: "Use the Metal backend for ANGLE"
  condition: ENABLE(WEBGL) && PLATFORM(COCOA)
  defaultValue:
    WebKitLegacy:
      "HAVE(WEBGL_COMPATIBLE_METAL)": true
      default: false
    WebKit:
      "HAVE(WEBGL_COMPATIBLE_METAL)": true
      default: false
    WebCore:
      "HAVE(WEBGL_COMPATIBLE_METAL)": true
      default: false

WebGPU:
  type: bool
  status: unstable
  humanReadableName: "WebGPU"
  humanReadableDescription: "Enable WebGPU"
  defaultValue:
    WebKitLegacy:
      "ENABLE(WEBGPU_BY_DEFAULT)": true
      default: false
    WebKit:
      "ENABLE(WEBGPU_BY_DEFAULT)": true
      default: false
    WebCore:
      "ENABLE(WEBGPU_BY_DEFAULT)": true
      default: false

WebInspectorEngineeringSettingsAllowed:
  type: bool
  status: internal
  category: dom
  defaultsOverridable: true
  humanReadableName: "WebInspector engineering settings allowed"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebLocksAPIEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Web Locks API"
  humanReadableDescription: "Web Locks API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: true

WebMFormatReaderEnabled:
  type: bool
  status: embedder
  webcoreBinding: DeprecatedGlobalSettings
  condition: ENABLE(WEBM_FORMAT_READER)
  defaultValue:
    WebKit:
      default: true

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
WebMParserEnabled:
  type: bool
  status: embedder
  webcoreBinding: DeprecatedGlobalSettings
  condition: ENABLE(MEDIA_SOURCE)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true

WebRTCAV1CodecEnabled:
  type: bool
  status: preview
  category: media
  humanReadableName: "WebRTC AV1 codec"
  humanReadableDescription: "Enable WebRTC AV1 codec"
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebRTCAudioLatencyAdaptationEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "WebRTC Audio Latency Adaptation"
  humanReadableDescription: "Enable WebRTC Audio Latency Adaptation"
  webcoreBinding: DeprecatedGlobalSettings
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
WebRTCDTMFEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "WebRTC DTMF"
  humanReadableDescription: "Enable WebRTC DTMF"
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

WebRTCEncodedTransformEnabled:
  type: bool
  status: testable
  category: media
  condition: ENABLE(WEB_RTC)
  humanReadableName: "WebRTC Encoded Transform API"
  humanReadableDescription: "Enable WebRTC Encoded Transform API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "USE(LIBWEBRTC)": true
      default: false
    WebCore:
      "USE(LIBWEBRTC)": true
      default: false

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
WebRTCH264HardwareEncoderEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "WebRTC H264 Hardware encoder"
  humanReadableDescription: "Enable H264 Hardware encoder"
  webcoreBinding: none
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
WebRTCH264LowLatencyEncoderEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "WebRTC H264 LowLatency encoder"
  humanReadableDescription: "Enable H264 LowLatency encoder"
  webcoreBinding: DeprecatedGlobalSettings
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely.
WebRTCH264SimulcastEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "WebRTC H264 Simulcast"
  humanReadableDescription: "Enable WebRTC H264 Simulcast"
  webcoreBinding: DeprecatedGlobalSettings
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true

WebRTCH265CodecEnabled:
  type: bool
  status: developer
  category: media
  condition: ENABLE(WEB_RTC)
  humanReadableName: "WebRTC H265 codec"
  humanReadableDescription: "Enable WebRTC H265 codec"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebRTCMediaPipelineAdditionalLoggingEnabled:
  type: bool
  status: internal
  category: media
  condition: USE(LIBWEBRTC)
  humanReadableName: "WebRTC Media Pipeline Additional Logging"
  humanReadableDescription: "Enable WebRTC Media Pipeline Additional Logging"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

# FIXME: This is not relevant for WebKitLegacy, so should be excluded from WebKitLegacy entirely.
WebRTCPlatformCodecsInGPUProcessEnabled:
  type: bool
  status: embedder
  humanReadableName: "GPU Process: WebRTC Platform Codecs"
  humanReadableDescription: "Enable WebRTC Platform Codecs in GPU Process"
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "ENABLE(GPU_PROCESS_BY_DEFAULT)": true
      default: false
    WebCore:
      default: false

WebRTCPlatformTCPSocketsEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "WebRTC Platform TCP Sockets"
  humanReadableDescription: "Enable WebRTC Platform TCP Sockets"
  webcoreBinding: DeprecatedGlobalSettings
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKit:
      default: true

WebRTCPlatformUDPSocketsEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "WebRTC Platform UDP Sockets"
  humanReadableDescription: "Enable WebRTC Platform UDP Sockets"
  webcoreBinding: DeprecatedGlobalSettings
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKit:
      default: true

WebRTCRemoteVideoFrameEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "WebRTC Remote Video Frame"
  humanReadableDescription: "Enable WebRTC Remote Video Frame"
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA)": true
      default: false
    WebCore:
      default: false

WebRTCSFrameTransformEnabled:
  type: bool
  status: testable
  category: media
  condition: ENABLE(WEB_RTC)
  humanReadableName: "WebRTC SFrame Transform API"
  humanReadableDescription: "Enable WebRTC SFrame Transform API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebRTCSocketsProxyingEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "WebRTC Sockets Proxying"
  humanReadableDescription: "Enable WebRTC Sockets Proxying"
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: true
    WebCore:
      default: false

WebRTCVP9Profile0CodecEnabled:
  type: bool
  status: internal
  category: media
  humanReadableName: "WebRTC VP9 profile 0 codec"
  humanReadableDescription: "Enable WebRTC VP9 profile 0 codec"
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

WebRTCVP9Profile2CodecEnabled:
  type: bool
  status: developer
  category: media
  humanReadableName: "WebRTC VP9 profile 2 codec"
  humanReadableDescription: "Enable WebRTC VP9 profile 2 codec"
  condition: ENABLE(WEB_RTC)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebSQLEnabled:
  type: bool
  status: embedder
  humanReadableName: "Enable WebSQL"
  humanReadableDescription: "Enable WebSQL"
  webcoreBinding: custom
  exposed: [ WebKitLegacy ]
  defaultValue:
    WebKitLegacy:
      "PLATFORM(IOS_FAMILY)": WebKit::defaultWebSQLEnabled()
      default: true

WebSecurityEnabled:
  type: bool
  status: embedder
  inspectorOverride: true
  defaultValue:
    WebKitLegacy:
      default: true
    WebKit:
      default: true
    WebCore:
      default: true

# FIXME: Is this implemented for WebKitLegacy? If not, this should be excluded from WebKitLegacy entirely (though we should still set the default value to false when initializing settings).
WebShareEnabled:
  type: bool
  status: embedder
  humanReadableName: "Web Share"
  humanReadableDescription: "Enable support for share sheet via Web Share API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA) && !PLATFORM(WATCHOS) && !PLATFORM(APPLETV)": true
      default: false
    WebCore:
      default: false

WebShareFileAPIEnabled:
  type: bool
  status: stable
  category: dom
  humanReadableName: "Web Share API Level 2"
  humanReadableDescription: "Enable level 2 of Web Share API"
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      "PLATFORM(COCOA) && !PLATFORM(WATCHOS) && !PLATFORM(APPLETV)": true
      default: false
    WebCore:
      default: false

WebSocketEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "PLATFORM(WATCHOS)": false
      default: true
    WebKit:
      "PLATFORM(WATCHOS)": false
      default: true
    WebCore:
      "PLATFORM(WATCHOS)": false
      default: true

WebXRAugmentedRealityModuleEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "WebXR Augmented Reality Module"
  humanReadableDescription: "Adds support for the WebXR Augmented Reality Module"
  condition: ENABLE(WEBXR)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebXREnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "WebXR Device API"
  humanReadableDescription: "Adds support for accessing virtual reality (VR) and augmented reality (AR) devices, including sensors and head-mounted displays, on the Web"
  condition: ENABLE(WEBXR)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebXRGamepadsModuleEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "WebXR Gamepads Module"
  humanReadableDescription: "Adds support for the WebXR Gamepads Module"
  condition: ENABLE(WEBXR)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WebXRHandInputModuleEnabled:
  type: bool
  status: testable
  category: dom
  humanReadableName: "WebXR Hand Input Module"
  humanReadableDescription: "Adds support for the Hands Input Module for WebXR"
  condition: ENABLE(WEBXR_HANDS)
  defaultValue:
    WebKitLegacy:
      default: false
    WebKit:
      default: false
    WebCore:
      default: false

WheelEventGesturesBecomeNonBlocking:
  type: bool
  status: mature
  humanReadableName: "Wheel Event gestures become non-blocking"
  humanReadableDescription: "preventDefault() is only allowed on the first wheel event in a gesture"
  defaultValue:
    WebKitLegacy:
      "PLATFORM(MAC)": WebKit::defaultWheelEventGesturesBecomeNonBlocking()
      default: true
    WebKit:
      "PLATFORM(MAC)": WebKit::defaultWheelEventGesturesBecomeNonBlocking()
      default: true
    WebCore:
      default: true

WindowFocusRestricted:
  comment: When enabled, window.blur() does not change focus, and window.focus() only
    changes focus when invoked from the context that created the window.
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      PLATFORM(MAC): WebKit::defaultWindowFocusRestricted()
      default: true
    WebKit:
      default: true
    WebCore:
      default: true
      
WirelessPlaybackTargetAPIEnabled:
  type: bool
  status: embedder
  defaultValue:
    WebKitLegacy:
      "HAVE(UIKIT_WEBKIT_INTERNALS)" : false
      default: true
    WebKit:
      "HAVE(UIKIT_WEBKIT_INTERNALS)" : false
      default: true
    WebCore:
      "HAVE(UIKIT_WEBKIT_INTERNALS)" : false
      default: true

ZoomOnDoubleTapWhenRoot:
  type: bool
  status: internal
  condition: PLATFORM(IOS_FAMILY)
  humanReadableName: "DTTZ also when root"
  humanReadableDescription: "Double taps zoom, even if we dispatched a click on the root nodes"
  webcoreBinding: none
  exposed: [ WebKit ]
  defaultValue:
    WebKit:
      default: false