Bug 163721 – Style resolver should be updated lazily

• Component: CSS
• Status: RESOLVED FIXED

[Antti Koivisto]

Currently when stylesheets change in some way we generally update style resolvers and invalidate style immediately. We should do this lazily to avoid unnecessary work.

[Antti Koivisto]

Created attachment 292163 [details]
patch

[Build Bot]

Comment on attachment 292163 [details]
patch

Attachment 292163 [details] did not pass mac-ews (mac):
Output: http://webkit-queues.webkit.org/results/2329997

New failing tests:
media/track/track-user-stylesheet.html
media/track/track-css-user-override.html
inspector/css/stylesheet-events-inspector-stylesheet.html
printing/page-format-data.html

[Build Bot]

Created attachment 292167 [details]
Archive of layout-test-results from ews101 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-ews.
Bot: ews101  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 292163 [details]
patch

Attachment 292163 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://webkit-queues.webkit.org/results/2330003

New failing tests:
media/track/track-user-stylesheet.html
media/track/track-css-user-override.html
inspector/css/stylesheet-events-inspector-stylesheet.html
printing/page-format-data.html

[Build Bot]

Created attachment 292168 [details]
Archive of layout-test-results from ews104 for mac-yosemite-wk2

The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
Bot: ews104  Port: mac-yosemite-wk2  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 292163 [details]
patch

Attachment 292163 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/2330006

New failing tests:
media/track/track-css-user-override.html
printing/page-format-data.html
inspector/css/stylesheet-events-inspector-stylesheet.html
media/track/track-user-stylesheet.html

[Build Bot]

Created attachment 292169 [details]
Archive of layout-test-results from ews112 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews112  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 292163 [details]
patch

Attachment 292163 [details] did not pass ios-sim-ews (ios-simulator-wk2):
Output: http://webkit-queues.webkit.org/results/2330007

New failing tests:
media/track/track-user-stylesheet.html
media/track/track-css-user-override.html

[Build Bot]

Created attachment 292170 [details]
Archive of layout-test-results from ews123 for ios-simulator-wk2

The attached test failures were seen while running run-webkit-tests on the ios-sim-ews.
Bot: ews123  Port: ios-simulator-wk2  Platform: Mac OS X 10.11.6

[Antti Koivisto]

Created attachment 292177 [details]
patch

[Build Bot]

Comment on attachment 292177 [details]
patch

Attachment 292177 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/2331262

New failing tests:
fast/media/mq-relative-constraints-08.html

[Build Bot]

Created attachment 292199 [details]
Archive of layout-test-results from ews113 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews113  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Andreas Kling]

Comment on attachment 292177 [details]
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=292177&action=review

> Source/WebCore/css/CSSComputedStyleDeclaration.cpp:2360
> +    document.styleScope().flushPendingUpdate();

IIUC this is needed for hasPendingForcedStyleRecalc() to work correctly. Is that accurate? If so, do we also need to do this in Element::needsStyleInvalidation()?

> Source/WebCore/testing/Internals.cpp:385
> +    page.group().captionPreferences().setTestingMode(true);

This deserves a ChangeLog comment at least. :P

[Antti Koivisto]

> IIUC this is needed for hasPendingForcedStyleRecalc() to work correctly. Is
> that accurate? If so, do we also need to do this in
> Element::needsStyleInvalidation()?

No because needsStyleInvalidation() is used to avoid invalidation work when we know we are already invalidated. Calling flushPendingUpdates() would catch more cases like that but it is way more expensive than per-element work that needsStyleInvalidation() is trying to optimize.

> 
> > Source/WebCore/testing/Internals.cpp:385
> > +    page.group().captionPreferences().setTestingMode(true);
> 
> This deserves a ChangeLog comment at least. :P

Yea. It is about avoiding inserting magical caption UA sheet that screws up some inspector tests. The existing code that was avoiding that was racy.

[Antti Koivisto]

Created attachment 292260 [details]
patch

[Antti Koivisto]

Created attachment 292262 [details]
patch

[Andreas Kling]

Comment on attachment 292262 [details]
patch

r=me

[Build Bot]

Comment on attachment 292262 [details]
patch

Attachment 292262 [details] did not pass ios-sim-ews (ios-simulator-wk2):
Output: http://webkit-queues.webkit.org/results/2333649

Number of test failures exceeded the failure limit.

[Build Bot]

Created attachment 292269 [details]
Archive of layout-test-results from ews121 for ios-simulator-wk2

The attached test failures were seen while running run-webkit-tests on the ios-sim-ews.
Bot: ews121  Port: ios-simulator-wk2  Platform: Mac OS X 10.11.6

[Build Bot]

Comment on attachment 292262 [details]
patch

Attachment 292262 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/2334005

New failing tests:
svg/text/text-outline-rgba.html

[Build Bot]

Created attachment 292283 [details]
Archive of layout-test-results from ews112 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews112  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Antti Koivisto]

Created attachment 292335 [details]
patch

[Antti Koivisto]

Created attachment 292338 [details]
patch

[Antti Koivisto]

Created attachment 292343 [details]
patch

[WebKit Commit Bot]

Comment on attachment 292343 [details]
patch

Clearing flags on attachment: 292343

Committed r207669: <http://trac.webkit.org/changeset/207669>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.