Bug 40511 – Implement HTML5 hidden attribute

• Status: RESOLVED
• Resolution: FIXED
• Component: New Bugs

[Maciej Stachowiak]

Implement HTML5 hidden attribute

[Maciej Stachowiak]

Created attachment 58533 [details]
Patch

[Maciej Stachowiak]

Committed r61052: <http://trac.webkit.org/changeset/61052>

[WebKit Review Bot]

http://trac.webkit.org/changeset/61052 might have broken SnowLeopard Intel Release (Tests)

[Eric Seidel (no email)]

Bots are borked.

[Eric Seidel (no email)]

Been borked for 5 hours.  Marked for rollout to let the cq continue.

[Eric Seidel (no email)]

I guess this was rolled out?  Was it rolled back in?

[Peter Beverloo]

Created attachment 75482 [details]
Patch

Re-baselined Maciej patch after brief discussion on IRC. Left the changelog messages intact as I didn't change anything.

Something I did notice was that HTMLEmbedElement.cpp (line 108) already implemented the hidden attribute in a slightly different way, by setting the width and height to zero. I haven't changed this because I don't know the rationale behind the implementation, but given the following line from the HTML5 specification it might be wise to create a (follow up?) patch to update the element's implementation.

> The embed element is unaffected by the CSS 'display' property. The selected
> plugin is instantiated even if the element is hidden with a 'display:none'
> CSS style.

http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#the-embed-element

[WebKit Commit Bot]

Comment on attachment 75482 [details]
Patch

Rejecting patch 75482 from commit-queue.

Failed to run "['./WebKitTools/Scripts/webkit-patch', '--status-host=queues.webkit.org', '--bot-id=abarth-cq-sl', 'build-and-test', '--no-clean', '--no-update', '--test', '--non-interactive']" exit_code: 2
Last 500 characters of output:
................................................
fast/eventsource ..
fast/fast-mobile-scrolling ..
fast/files .......
fast/flexbox ...................................
fast/forms ....................................................................................................
fast/forms/caret-rtl.html -> failed

Exiting early after 1 failures. 8025 tests run.
135.50s total testing time

8024 test cases (99%) succeeded
1 test case (<1%) had incorrect layout
4 test cases (<1%) had stderr output

Full output: http://queues.webkit.org/results/6845035

[Peter Beverloo]

Created attachment 75542 [details]
Patch

The style attribute of fast/forms/caret-rtl.html was closed too early, causing the outline- and overflow properties to be threated as attributes. Since the overflow property had "hidden" as its attribute, the whole edit-layer disappeared.

I have modified the test to show the outline, but have removed the overflow to maintain the current results.

[Peter Beverloo]

Created attachment 75654 [details]
Patch

Fixed the patch.

[Kent Tamura]

Comment on attachment 75654 [details]
Patch

Looks good.

[WebKit Commit Bot]

Comment on attachment 75654 [details]
Patch

Rejecting patch 75654 from commit-queue.

Failed to run "['./WebKitTools/Scripts/webkit-patch', '--status-host=queues.webkit.org', '--bot-id=eseidel-sf', 'build', '--no-clean', '--no-update', '--build-style=both']" exit_code: 2
Last 500 characters of output:
2
	CompileC /Projects/CommitQueue/WebKitBuild/WebCore.build/Debug/WebCore.build/Objects-normal/x86_64/JSEntriesCallback.o /Projects/CommitQueue/WebKitBuild/Debug/DerivedSources/WebCore/JSEntriesCallback.cpp normal x86_64 c++ com.apple.compilers.gcc.4_2
	CompileC /Projects/CommitQueue/WebKitBuild/WebCore.build/Debug/WebCore.build/Objects-normal/x86_64/JSEntity.o /Projects/CommitQueue/WebKitBuild/Debug/DerivedSources/WebCore/JSEntity.cpp normal x86_64 c++ com.apple.compilers.gcc.4_2
(3 failures)


Full output: http://queues.webkit.org/results/6751097

[Ryosuke Niwa]

Comment on attachment 75654 [details]
Patch

Let's try again.

[WebKit Commit Bot]

Comment on attachment 75654 [details]
Patch

Clearing flags on attachment: 75654

Committed r73459: <http://trac.webkit.org/changeset/73459>

[Tony Chang]

This caused the focus ring around the div to no longer be painted in fast/forms/caret-rtl.html.  Is that expected?

Here's the pixel results on Chromium:
http://test-results.appspot.com/dashboards/flakiness_dashboard.html#showExpectations=true&showLargeExpectations=true&tests=fast%2Fforms%2Fcaret-rtl.html&master=ChromiumWebkit

[Tony Chang]

(In reply to comment #15)
> This caused the focus ring around the div to no longer be painted in fast/forms/caret-rtl.html.  Is that expected?

To answer my own question: yes, because the content editable div now has an outline style.  I'll rebaseline.

[Eric Seidel (no email)]

Comment on attachment 75482 [details]
Patch

Cleared Maciej Stachowiak's review+ from obsolete attachment 75482 [details] so that this bug does not appear in http://webkit.org/pending-commit.

[Eric Seidel (no email)]

Please use a separate bug for regressions.

[Eric Seidel (no email)]

Um... Looking at:
http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#the-embed-element

I no longer see a "hidden" attribute on <embed> are we sure it's still a part of the spec?

This change caused "regression" bug 56575.  If "hidden" is no longer an attribute on <embed> seems we should roll out this patch.

[Eric Seidel (no email)]

http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#the-object-element also doesn't mention anything about a "hidden" attribute.

I think this patch should be rolled out.

[Eric Seidel (no email)]

Nevermind, hidden is a global attribute:
http://www.whatwg.org/specs/web-apps/current-work/multipage/editing.html#the-hidden-attribute