Bug 18014

Summary: Full Page Zoom: Acid2 - resizing text massively disrupts rendering
Product: WebKit Reporter: Marc Nothrop <marc>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED INVALID    
Severity: Normal CC: webkit
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Mac (Intel)   
OS: OS X 10.5   
URL: http://acid2.acidtests.org/
Attachments:
Description Flags
Screenshot of zooming impact on Acid2 test none

Marc Nothrop
Reported 2008-03-22 06:48:39 PDT
Using Full Page Zoom in r31224 and running Acid2 test: After rendering the Acid2 test altering zoom (Cmd-+/-) will massively disrupt the rendering, in the same way as altering font-size with font-only scaling, whereas Page Zoom should scale the layout intact. Altering zoom before running the test results in significantly fewer layout disruptions.
Attachments
Screenshot of zooming impact on Acid2 test (148.45 KB, image/png)
2008-03-22 06:52 PDT, Marc Nothrop 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Marc Nothrop
Comment 1 2008-03-22 06:52:23 PDT
Created attachment 19971 [details] Screenshot of zooming impact on Acid2 test Screenshot shows zooming Acid2 test via Full Page Zoom *after* rendering, with inset showing much less significant impact from zooming *before* rendering test.
Robert Blaut
Comment 2 2008-07-17 00:26:26 PDT
The described problem is not a bug. As you can read a note: "When taking the test, you should use the default settings of the browser you are testing. Changing the zoom level, minimum font size, applying a fit-to-width algorithm, or making other changes may alter the rendition of the Acid2 page without this constituting a failure in compliance." [http://www.webstandards.org/action/acid2/guide/]. Similar glitches during zooming on Acid 2 test page you can observe in other browsers like Firefox and Opera.
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