https://bugs.kde.org/show_bug.cgi?id=392784
Bug ID: 392784
Summary: Triggering "Window Move" when LeftButton is held down
doesn't move window
Product: kwin
Version: unspecified
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: zrenf...@gmail.com
Target Milestone: ---
Ran into this bug(?) while trying to recreate the Unity drag to unmaximize
feature. I was originally trying to use libtaskmanager's "requestMove"
function, but I've since tested with the global shortcut and it also doesn't
work.
You can quickly test with:
sleep 5; qdbus org.kde.kglobalaccel /component/kwin invokeShortcut "Window
Move"
First run the command, then hold the LeftButton down until the shortcut is
activated.
You'll notice the mouse moved to the center of the window, but the window will
not follow the mouse. Nor will LeftClicks do anything anywhere on the screen.
The mouse can still be moved around, but mouse clicks do nothing. If you
release the mouse the window quickly moves to where you released it. Mouse
clicks are still not responsive until you press Space (accept move) or Esc
(cancel move).
I broke down the function calls here:
*
https://github.com/kotelnik/plasma-applet-active-window-control/issues/30#issuecomment-364255622
The taskmanager widget calls `performMouseCommand(Options::MouseMove, ...)`
*
https://github.com/KDE/kwin/blob/2e868c50df0aab40e4814724ee090ded6bd9072e/events.cpp#L1168
* https://github.com/KDE/kwin/blob/master/abstract_client.cpp#L998
while it seems the global shortcut calls
`performMouseCommand(Options::MouseUnrestrictedMove, ...)`
*
https://github.com/KDE/kwin/blob/d3aa33b51bd635008b519f565bdf0492e1531090/kwinbindings.cpp#L67
*
https://github.com/KDE/kwin/blob/a0c91c6e19fec54054d1d6684d7c7a8ec0f1688c/useractions.cpp#L1710
*
https://github.com/KDE/kwin/blob/a0c91c6e19fec54054d1d6684d7c7a8ec0f1688c/useractions.cpp#L1095
AbractClient uses almost the same logic for both though
* https://github.com/KDE/kwin/blob/master/abstract_client.cpp#L998
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