Open
Bug 1895228
Opened 1 year ago
Updated 1 year ago
Consider removing apz.windows.use_direct_manipulation pref
Categories
(Core :: Panning and Zooming, task, P5)
Core
Panning and Zooming
Tracking
()
NEW
People
(Reporter: gregp, Unassigned)
References
(Blocks 1 open bug)
Details
Right now, there are two prefs for disabling Direct Manipulation:
apz.windows.use_direct_manipulation(added in bug 1630912, enabled in bug 1671235)apz.windows.force_disable_direct_manipulation(added in bug 1632357, disabled in bug 1643634)
Are both necessary?
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Comment 2•1 year ago
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I believe the main purpose of apz.windows.force_disable_direct_manipulation was to disable the use of the window style flags WS_EX_LAYERED | WS_EX_TRANSPARENT. These flags were necessary for dmanip to function with our window (hwnd) setup, but on some machines they caused blank windows. We fixed the blank window bug but I guess I was being cautious because the severity (drawing blank windows) if we didn't fully fix the issue.
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Description
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