Bug 126531

Summary: On iOS, zooming in with a TileController-backed main frame makes hundreds of tiles
Product: WebKit Reporter: Tim Horton <thorton>
Component: Layout and RenderingAssignee: Tim Horton <thorton>
Severity: Normal CC: andersca, commit-queue, sam, simon.fraser
Priority: P2 Keywords: InRadar
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on: 126536    
Bug Blocks:    
Description Flags
patch none

Description Tim Horton 2014-01-06 11:40:43 PST

The exposed rect that's handed through to TileController is in view coordinates. If we delegate page scale to the view (like iOS), this causes trouble, and we need to transform it appropriately.
Comment 1 Tim Horton 2014-01-15 13:33:34 PST
Not quite right.

TileController's exposedRect is in FrameView coordinate space, but the TileController's visibleRect is in 'document' space. We need to scale the exposedRect. This also makes exposedRect stuff work correctly on desktop if you flip it on for Safari/MiniBrowser and zoom.

Also, WKContentView was not sending the exposedRect in FrameView coordinate space, but it should be.
Comment 2 Tim Horton 2014-01-15 13:41:26 PST
Created attachment 221305 [details]
Comment 3 WebKit Commit Bot 2014-01-16 23:27:17 PST
Comment on attachment 221305 [details]

Clearing flags on attachment: 221305

Committed r162189: <http://trac.webkit.org/changeset/162189>
Comment 4 WebKit Commit Bot 2014-01-16 23:27:19 PST
All reviewed patches have been landed.  Closing bug.