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config: mouse-bindings: verify button isn't already mapped

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A button may only be mapped to a single action. Detect when the user
tried to map the same button to multiple actions and error out.

To clear a binding (for example, to free up a button from the default
bindings), one can set the action it is bound to to
`NONE` (e.g. `primary-paste=NONE`).
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Daniel Eklöf 2020-03-12 10:46:27 +01:00
parent 60170f4738
commit c58f9a9ef9
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@ -151,15 +151,15 @@ component.
This section lets you override the default key bindings.
The general format is *action*=*combo1*...*comboN*. That is, each
The general format is _action_=_combo1_..._comboN_. That is, each
action may have one or more key combinations, space separated. Each
combination is on the form *mod1*+*mod2*+*key*. The names of the
combination is on the form _mod1_+_mod2_+_key_. The names of the
modifiers and the key *must* be a valid XKB key name.
Note that if *Shift* is one of the modifiers, the _key_ *must* be in
upper case.
Note that _Alt_ is usually called *Mod1*.
Note that *Alt* is usually called *Mod1*.
*scrollback-up*
Scrolls up/back in history. Default: _Shift+Page_Up_.
@ -207,10 +207,16 @@ Note that _Alt_ is usually called *Mod1*.
This section lets you override the default mouse bindings.
The general format is *action*=*BTN\_<name>*, where *BTN\_<name>* is
The general format is _action_=_BTN\_<name>_, where _BTN\_<name>_ is
the name of the event code (e.g. *BTN\_LEFT*, *BTN\_RIGHT*). You can
find the event names using *libinput debug-events*.
A button can only be mapped to *one* action. Lets say you want to bind
*BTN\_MIDDLE* to *fullscreen*. Since *BTN\_MIDDLE* is the default
binding for *primary-paste*, you first need to unmap the default
binding. This can be done by setting _action_=*NONE*;
e.g. *primary-paste*=*NONE*.
*primary-paste*
Pastes from the _primary selection_. Default: _BTN_MIDDLE_.