Review Request 124954: Add support for modifier only shortcuts on Wayland

[Martin Gräßlin]

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https://git.reviewboard.kde.org/r/124954/
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(Updated Sept. 9, 2015, 8:42 a.m.)


Status
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This change has been marked as submitted.


Review request for kwin, Plasma and Hans Chen.


Changes
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Submitted with commit 07414e88a5dca8abe00e555b9ea94189b429a5c6 by Martin Gräßlin to branch master.


Repository: kwin


Description
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On popular demand!

This change tracks how modifiers are used and detects a modifier only
key press/release. That is:
* no other key is pressed when the modifier gets pressed
* no other key gets pressed before the modifier gets released

If such a press/release is detected, we call a configurable dbus call.
The possible shortcuts can be configured in kwinrc, group
"ModifierOnlyShortcuts". The following keys are supported:
* Shift
* Control
* Alt
* Meta

As value it takes a QStringList (comma seperated string) with
service,path,interface,method,additionalargs

E.g. to invoke Desktop Grid effect on Meta key:

[ModifierOnlyShortcuts]
Meta=org.kde.kglobalaccel,/component/kwin/,org.kde.kglobalaccel.Component,invokeShortcut,ShowDesktopGrid

I do not intend to add a config interface for it. Let's keep it a hidden
way.


Diffs
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  input.h cfb693dc06a18ea9ca7cffb99b9a1318ee443e3a 
  input.cpp 92724d7b7559dd460a8f5fbe17deb3c72024eed6 
  options.h 07c5193e3bd205c5c8c22a305f4c1d87e16d175f 
  options.cpp 64269d64bc49640bf2e4e925ce1969f2a5d6b96b 

Diff: https://git.reviewboard.kde.org/r/124954/diff/


Testing
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Thanks,

Martin Gräßlin

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