Bug 87685 – Introduce ENABLE_CSS_IMAGE_RESOLUTION compile flag

• Component: CSS
• Status: RESOLVED FIXED

[David Barr]

The css3-images module is at candidate recommendation.
One property from that module that is not yet implemented in WebKit is image-resolution.
http://www.w3.org/TR/2012/CR-css3-images-20120417/#image-resolution

I propose to introduce the property, initially behind a compile time flag.

[David Barr]

Created attachment 144432 [details]
Patch

[Raphael Kubo da Costa (:rakuco)]

Comment on attachment 144432 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=144432&action=review

> Source/cmake/WebKitFeatures.cmake:23
> +    WEBKIT_OPTION_DEFINE(ENABLE_CSS_IMAGE_RESOLUTION "Toggle CSS image-resolution support" OFF)

Thanks for taking care of the CMake side. You also need to add a definition to Source/cmakeconfig.cmake.h.

[David Barr]

I think Source/cmakeconfig.h.cmake is only for enabled features.

[Raphael Kubo da Costa (:rakuco)]

(In reply to comment #3)
> I think Source/cmakeconfig.h.cmake is only for enabled features.

Not really, disabled ones just get defined to 0 there. You could add it when the feature gets enabled, but it doesn't scale well since more than one port uses CMake.

[David Barr]

I stand corrected. The basis for my false presumption was that the following disabled features are absent from Source/cmakeconfig.h.cmake

ENABLE_ANIMATION_API
ENABLE_CSS_FILTERS
ENABLE_CSS_IMAGE_RESOLUTION
ENABLE_CSS_SHADERS
ENABLE_CSS_VARIABLES
ENABLE_DIRECTORY_UPLOAD
ENABLE_GAMEPAD
ENABLE_HIGH_DPI_CANVAS
ENABLE_INPUT_SPEECH
ENABLE_LEGACY_WEBKIT_BLOB_BUILDER
ENABLE_LINK_PREFETCH
ENABLE_MEDIA_SOURCE
ENABLE_MEDIA_STATISTICS
ENABLE_MEDIA_STREAM
ENABLE_MHTML
ENABLE_PLUGIN_PROXY_FOR_VIDEO
ENABLE_QUOTA
ENABLE_REPAINT_THROTTLING
ENABLE_SCRIPTED_SPEECH
ENABLE_SHADOW_DOM
ENABLE_STYLE_SCOPED

[Raphael Kubo da Costa (:rakuco)]

Indeed. People are usually unaware that that file needs to be changed (I've added it to http://trac.webkit.org/wiki/AddingFeatures). Hopefully the situation will be improved once Eric's work to generate the feature definitions for all build systems automatically lands (since we could also generate that file).

[David Barr]

Created attachment 144442 [details]
Patch

Updated Source/cmakeconfig.h.cmake and ChangeLog.

[Eric Seidel (no email)]

Comment on attachment 144442 [details]
Patch

This looks mostly correct.  I suspect you missed Gtk.

[WebKit Review Bot]

Comment on attachment 144442 [details]
Patch

Clearing flags on attachment: 144442

Committed r118774: <http://trac.webkit.org/changeset/118774>

[WebKit Review Bot]

All reviewed patches have been landed.  Closing bug.