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83f420984 @
Tink @
windfarer @
kingcos @
Midnight @
NickIwannaRock 窗口拖动不是迅雷的问题。在 OS X 10.11 中的 WindowServer 绘制窗口时，编译于 OS X 10.10 SDK 的、行高为标准高度两倍 app 窗口聚焦存在问题。
临时的解决方案是拖动迅雷或微信等 app 窗口标题栏的下半部分。拖动标题栏下半部分时， app 窗口聚焦不会出现问题。
有空建议帮忙 Duplicate 一下 rdar://23453323 。
具体信息复制这里就好：
Application window tears apart and flickers rapidly when moving)
Summary:
For applications that feature a window chrome with higher-than-usual height, such as Thunder and WeChat, moving such window on El Capitan could randomly result in window tears apart and flickers rapidly when moving.
While these two apps are provided as an example, they are not the only 3rd party apps that suffer from this bug.
Steps to Reproduce:
1. Run Thunder (迅雷).app
2. Invoke Mission Control
3. Switch to "Thunder (迅雷)" app
4. Drag the title bar to move app window around.
Expected Results:
App window follows finger movement and does not tear or flicker, which is the expected behavior and the outcome in prior versions of OS X.
Actual Results:
Window tears apart and flickers rapidly.
Version:
OS X El Capitan 10.11.1 (15B42)
Configuration:
This issue occurs on clean installs of OS X El Capitan 10.11.1 (15B42), and is present on Mac with Intel HD5000, 4000 and 3000. I did not have other hardware configurations to test on, but I believe this issue exists both for Metal and OpenGL rendering pipeline of application window.