Fix #4952 - Low contrast menus when reduced transparency/inc. contrast are enabled#5282
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garvankeeley merged 4 commits intomozilla-mobile:masterfrom Aug 1, 2019
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Previous color was a result of no defined background color Blur effect in PhotonActionSheet disables on reduced transparency, enables otherwise Light theme removes alpha on background to deal with above case
Tint colors are modified by iOS when increased contrast is enabled — now, the behavior for PhotonActionSheetCell is accessible, in addition to being inline with ThemedWidgets.
This increases readability for when “increase contrast” is enabled.
peterkos
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garvankeeley
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Jul 31, 2019
Also: - flipped reduce transparency logic to be more readable -> (isEnabled) instead of (!isEnabled) - Changed Theme ActionMenuColor to be inline with corresponding DarkTheme color, by just using defaultBackground
garvankeeley
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Aug 1, 2019
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…y/inc. contrast are enabled (mozilla-mobile#5282) * Night mode blur color, and reduce transparency Previous color was a result of no defined background color Blur effect in PhotonActionSheet disables on reduced transparency, enables otherwise Light theme removes alpha on background to deal with above case * Fixed title and subtitle text colors Tint colors are modified by iOS when increased contrast is enabled — now, the behavior for PhotonActionSheetCell is accessible, in addition to being inline with ThemedWidgets. * Night mode action foreground color -> white This increases readability for when “increase contrast” is enabled. * Disable theme bg alpha on reduced transprency Also: - flipped reduce transparency logic to be more readable -> (isEnabled) instead of (!isEnabled) - Changed Theme ActionMenuColor to be inline with corresponding DarkTheme color, by just using defaultBackground
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Fixes #4952
This PR addresses unreadable contrast in popover menus when the "reduced transparency" and/or "increased contrast" accessibility settings are enabled, specifically in night mode.
Reduced transparency behavior in popup views
The current behavior of popup views in night mode is actually a bug -- there was no defined background blur style for the night theme, it just used the normal theme's color.
Enabling reduced transparency would flatten the opaque blur effect view, and show the original white background.
This is fixed by defining a dark blur style (that matches the "close" button's color, save for transparency), and removing the 0.9 alpha on the light theme. Additionally, the blur is now conditionally applied when accessibility is turned on/off.
The potential downside here is decreased contrast with dark-background websites.
Increased contrast behavior in popup views
Previously, the popup action sheet cell would use
tintColoras its text color, which is not inline with other table views which userowColor. Enabling "increased contrast" causes iOS to darken the tint color, which doesn't help in this scenario (dark background!).The fix here is changing
tintColortorowColorfor thePhotonActionSheetCell, and modifying theforegroundcolor in theDarkThemefile.Sidenote:
Apple has no documentation on how reduced transparency/increased contrast is implemented! Most of my work here has been through the UI debugger.