Bug 88167
| Summary: | [chromium] The size of scrollbar arrow button is not correct for painting on Windows | ||
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| Product: | WebKit | Reporter: | Hongbo Min <hongbo.min> |
| Component: | WebCore Misc. | Assignee: | Nobody <webkit-unassigned> |
| Status: | RESOLVED WONTFIX | ||
| Severity: | Normal | CC: | schenney |
| Priority: | P2 | ||
| Version: | 528+ (Nightly build) | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
Hongbo Min
The size of scrollbar arrow button returned by ScrollbarThemeChromiumWin::buttonSize is not correct on Windows.
For Linux, ScrollbarThemeChromiumLinux::buttonSize in WebCore is actually delegated to getSize on NativeTheme instance.
For Android, because the scrollbar arrow button is painted by threaded compositor, buttonSize returns hard-coded value (0, 0) directly.
Since the theme framework built upon NativeTheme class hierarchy, for AURA theme, we don't draw scrollbar button which requires that the button size should be a empty rectangle. However, there is no way for aura theme to get the correct button size in WebCore level.
Reference http://code.google.com/p/chromium/issues/detail?id=130856 for a bug in chromium caused by it.
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| Add attachment proposed patch, testcase, etc. |
Stephen Chenney
https://code.google.com/p/chromium/issues/detail?id=130856