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

[Thomas Lübking]

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Hold it.

Implementationwise, this looks wonky - if it's possible to get unbalanced input events (ie. releases w/o ever a press or vv.) from the system since the counter will run out of sync.

=> Are such unbalanced events prevented by libinput for sure or can one eg. create synthetic release events (w/o a synthetic press event)?

- Thomas Lübking


On Aug. 27, 2015, 4:04 nachm., Martin Gräßlin wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/124954/
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> 
> (Updated Aug. 27, 2015, 4:04 nachm.)
> 
> 
> Review request for kwin, Plasma and Hans Chen.
> 
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> Repository: kwin
> 
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> 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/
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> 
> Testing
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> 
> Thanks,
> 
> Martin Gräßlin
> 
>

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