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_z-index.scss
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_z-index.scss
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// Stores a list of z-index values in a central location. For clarity, when a
// specific value is needed, add a comment explaining why (what other rules the
// value is designed to work with).
$z-layers: (
".block-editor-block-list__block::before": 0,
".block-editor-block-switcher__arrow": 1,
".block-editor-block-list__block {core/image aligned wide or fullwide}": 20,
".block-library-classic__toolbar": 31, // When scrolled to top this toolbar needs to sit over block-editor-block-toolbar
".block-editor-block-list__layout .reusable-block-indicator": 1,
".block-editor-block-list__block-selection-button": 22,
".components-form-toggle__input": 1,
".edit-post-text-editor__toolbar": 1,
".edit-site-code-editor__toolbar": 1,
".edit-post-sidebar__panel-tab.is-active": 1,
// These next three share a stacking context
".block-editor-inserter__tabs .components-tab-panel__tab-content": 0, // lower scrolling content
".block-editor-inserter__tabs .components-tab-panel__tabs": 1, // higher sticky element
".block-editor-inserter__search": 1, // higher sticky element
// These next two share a stacking context
".interface-complementary-area .components-panel" : 0, // lower scrolling content
".interface-complementary-area .components-panel__header": 1, // higher sticky element
".components-modal__header": 10,
".edit-post-meta-boxes-area.is-loading::before": 1,
".edit-post-meta-boxes-area .spinner": 5,
".components-popover__close": 5,
".block-editor-block-list__insertion-point": 6,
".block-editor-warning": 5,
".block-library-gallery-item__inline-menu": 20,
".block-editor-url-input__suggestions": 30,
".edit-post-layout__footer": 30,
".interface-interface-skeleton__header": 30,
".interface-interface-skeleton__content": 20,
".edit-site-header": 62,
".edit-widgets-header": 30,
".block-library-button__inline-link .block-editor-url-input__suggestions": 6, // URL suggestions for button block above sibling inserter
".wp-block-cover__inner-container": 1, // InnerBlocks area inside cover image block
".wp-block-cover.is-placeholder .components-placeholder.is-large": 1, // Cover block resizer component inside a large placeholder.
".wp-block-cover.has-background-dim::before": 1, // Overlay area inside block cover need to be higher than the video background.
".block-library-cover__padding-visualizer": 2, // BoxControl visualizer needs to be +1 higher than .wp-block-cover.has-background-dim::before
".wp-block-cover__image-background": 0, // Image background inside cover block.
".wp-block-cover__video-background": 0, // Video background inside cover block.
".wp-block-template-part__placeholder-preview-filter-input": 1,
// Fixed position appender:
".block-editor-block-list__block .block-list-appender": 2,
// Navigation menu dropdown.
".has-child .wp-block-navigation__submenu-container": 28,
".has-child:hover .wp-block-navigation__submenu-container": 29,
// Active pill button
".components-button {:focus or .is-primary}": 1,
// The draggable element should show up above the entire UI
".components-draggable__clone": 1000000000,
".block-editor-block-list__block .reusable-block-edit-panel *": 1,
// Show drop zone above most standard content, but below any overlays
".components-drop-zone": 40,
".components-drop-zone__content": 50,
// The floated blocks should be above the other blocks to allow selection.
"{core/image aligned left or right} .wp-block": 21,
// Needs to be below media library that has a z-index of 160000.
"{core/video track editor popover}": 160000 - 10,
// Needs to be below media library that has a z-index of 160000.
".block-editor-format-toolbar__image-popover": 160000 - 10,
// Small screen inner blocks overlay must be displayed above drop zone,
// settings menu, and movers.
".block-editor-block-list__layout.has-overlay::after": 60,
// The toolbar, when contextual, should be above any adjacent nested block click overlays.
".block-editor-block-contextual-toolbar": 61,
// Ensures content overlay appears higher than resize containers used for image/video/etc.
"..block-editor-block-list__block.has-block-overlay": 10,
// Query block setup state.
".block-editor-block-pattern-setup .pattern-slide": 100,
".block-editor-block-pattern-setup .{next,previous}-slide": 101,
".block-editor-block-pattern-setup .active-slide": 102,
// Show sidebar above wp-admin navigation bar for mobile viewports:
// #wpadminbar { z-index: 99999 }
".interface-interface-skeleton__sidebar": 100000,
".edit-post-layout__toggle-sidebar-panel": 100000,
".edit-site-sidebar": 100000,
".edit-widgets-sidebar": 100000,
".edit-post-layout .edit-post-post-publish-panel": 100001,
// For larger views, the wp-admin navbar dropdown should be at top of
// the Publish Post sidebar.
".edit-post-layout .edit-post-post-publish-panel {greater than small}": 99998,
".entities-saved-states__panel": 100001,
// For larger views, the wp-admin navbar dropdown should be on top of
// the multi-entity saving sidebar.
".entities-saved-states__panel {greater than small}": 99998,
".edit-site-editor__toggle-save-panel": 100000,
// Show sidebar in greater than small viewports above editor related elements
// but below #adminmenuback { z-index: 100 }
".interface-interface-skeleton__sidebar {greater than small}": 90,
".edit-site-sidebar {greater than small}": 90,
".edit-widgets-sidebar {greater than small}": 90,
// Show interface skeleton footer above interface skeleton drawer
".interface-interface-skeleton__footer": 90,
// Show the navigation toggle above the skeleton header
".edit-site-navigation-toggle": 31,
// Show the navigation link above the skeleton header
".edit-site-navigation-link": 31,
// Show the FSE template previews above the editor and any open block toolbars
".edit-site-navigation-panel__preview": 32,
// Above the block list and the header.
".block-editor-block-popover": 31,
// Show snackbars above everything (similar to popovers)
".components-snackbar-list": 100000,
// Show modal under the wp-admin menus and the popover
".components-modal__screen-overlay": 100000,
// Show popovers above wp-admin menus and submenus and sidebar:
// #adminmenuwrap { z-index: 9990 }
".components-popover": 1000000,
// Should be above the popover (dropdown)
".reusable-blocks-menu-items__convert-modal": 1000001,
".edit-site-create-template-part-modal": 1000001,
".block-editor-block-lock-modal": 1000001,
// Note: The ConfirmDialog component's z-index is being set to 1000001 in packages/components/src/confirm-dialog/styles.ts
// because it uses emotion and not sass. We need it to render on top its parent popover.
// ...Except for popovers immediately beneath wp-admin menu on large breakpoints
".components-popover.block-editor-inserter__popover": 99999,
".components-popover.table-of-contents__popover": 99998,
".components-popover.interface-more-menu__content": 99998,
".components-popover.block-editor-rich-text__inline-format-toolbar": 99998,
".components-popover.block-editor-warning__dropdown": 99998,
".components-popover.edit-navigation-menu-actions__switcher-dropdown": 99998,
".components-autocomplete__results": 1000000,
".skip-to-selected-block": 100000,
".interface-interface-skeleton__actions": 100000,
// Show NUX tips above popovers, wp-admin menus, submenus, and sidebar:
".nux-dot-tip": 1000001,
// Show tooltips above NUX tips, wp-admin menus, submenus, and sidebar:
".components-tooltip": 1000002,
// Make sure corner handles are above side handles for ResizableBox component
".components-resizable-box__handle": 2,
".components-resizable-box__side-handle": 2,
".components-resizable-box__corner-handle": 2,
// Make sure block manager sticky category titles appear above the options
".edit-post-block-manager__category-title": 1,
// And block manager sticky disabled block count is higher still
".edit-post-block-manager__disabled-blocks-count": 2,
// Needs to be higher than any other element as this is an overlay to catch all events
".components-tooltip .event-catcher": 100002,
// Needs to appear below other color circular picker related UI elements.
".components-circular-option-picker__option-wrapper::before": -1,
".components-circular-option-picker__option.is-pressed": 1,
// Needs to be higher than .components-circular-option-picker__option.is-pressed.
".components-circular-option-picker__option.is-pressed + svg": 2,
".edit-navigation-layout__overlay": 999,
// Appear under the customizer heading UI, but over anything else.
".customize-widgets__topbar": 8,
// Appear under the topbar.
".customize-widgets__block-toolbar": 7,
);
@function z-index( $key ) {
@if map-has-key( $z-layers, $key ) {
@return map-get( $z-layers, $key );
}
@error "Error: Specified z-index `#{$key}` does not exist in the mapping";
}