Clamp TileCache visibleRect to WKView's visibleRect

• Component: WebKit2
• Status: RESOLVED FIXED

[Tim Horton]

In the case where we have a very large WKView which is mostly clipped, we create tons of tiles (covering the whole view!). We should only make tiles in the visible area.

Part of <rdar://problem/12843164>.

[Tim Horton]

Created attachment 182827 [details]
take one

[WebKit Review Bot]

Attachment 182827 [details] did not pass style-queue:

Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WebCore/ChangeLog', u'Source/WebCor..." exit_code: 1
Source/WebKit2/WebProcess/WebPage/WebPage.h:723:  The parameter name "isScrollable" adds no information, so it should be removed.  [readability/parameter_name] [5]
Source/WebKit2/UIProcess/WebPageProxy.h:392:  The parameter name "isScrollable" adds no information, so it should be removed.  [readability/parameter_name] [5]
Total errors found: 2 in 16 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Tim Horton]

Created attachment 182828 [details]
preemptive style fix

[Early Warning System Bot]

Comment on attachment 182828 [details]
preemptive style fix

Attachment 182828 [details] did not pass qt-wk2-ews (qt):
Output: http://queues.webkit.org/results/15908017

[Tim Horton]

Created attachment 182840 [details]
patch

[Tim Horton]

Created attachment 182880 [details]
patch after talking to smfr

[WebKit Review Bot]

Attachment 182880 [details] did not pass style-queue:

Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WebCore/ChangeLog', u'Source/WebCor..." exit_code: 1
Source/WebKit2/UIProcess/API/mac/WKViewPrivate.h:54:  Extra space before ( in function call  [whitespace/parens] [4]
Total errors found: 1 in 17 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Simon Fraser (smfr)]

Comment on attachment 182880 [details]
patch after talking to smfr

View in context: https://bugs.webkit.org/attachment.cgi?id=182880&action=review

> Source/WebCore/platform/graphics/ca/mac/TileCache.h:173
> +    IntRect m_exposedRect;

A comment to say what this is would be nice.

> Source/WebCore/platform/graphics/ca/mac/TileCache.mm:418
> +    IntRect intersectedVisibleRect = m_visibleRect;

I think it would be fine to call this visibleRect.

> Source/WebKit2/UIProcess/API/mac/WKView.mm:213
> +    BOOL _expandsToFitContent;

Maybe this should contain 'autoLayout' in the words.

> Source/WebKit2/UIProcess/API/mac/WKView.mm:3100
> +    _data->_page->setMinimumLayoutWidth(expandsToFit ? minimumLayoutWidth : 0);

Isn't this the same as _data->_page->setMinimumLayoutWidth(minimumLayoutWidth); ?

> Source/WebKit2/WebProcess/WebPage/WebPage.h:607
> +    bool mainFrameIsScrollable() { return m_mainFrameIsScrollable; }

const

> Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm:347
> +    m_exposedRect = exposedRect;
> +    mainFrameTiledBacking()->setExposedRect(exposedRect);

Shouldn't this map through the scroll offset?

[Tim Horton]

http://trac.webkit.org/changeset/139822