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191 lines
7.7 KiB
Markdown
191 lines
7.7 KiB
Markdown
## Configuring Key Assignments
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The default key table assignments can be overridden or extended using the
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`keys` section in your `~/.wezterm.lua` config file. For example, you can
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disable a default assignment like this:
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```lua
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config.keys = {
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-- Turn off the default CMD-m Hide action, allowing CMD-m to
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-- be potentially recognized and handled by the tab
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{
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key = 'm',
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mods = 'CMD',
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action = wezterm.action.DisableDefaultAssignment,
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},
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}
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```
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The `action` value can be one of the [available key
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assignments](lua/keyassignment/index.md). Every action has an example that shows
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how to use it.
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Possible Modifier labels are:
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* `SUPER`, `CMD`, `WIN` - these are all equivalent: on macOS the `Command` key,
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on Windows the `Windows` key, on Linux this can also be the `Super` or `Hyper`
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key. Left and right are equivalent.
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* `CTRL` - The control key. Left and right are equivalent.
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* `SHIFT` - The shift key. Left and right are equivalent.
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* `ALT`, `OPT`, `META` - these are all equivalent: on macOS the `Option` key,
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on other systems the `Alt` or `Meta` key. Left and right are equivalent.
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* `LEADER` - a special modal modifier state managed by `wezterm`. See [Leader Key](#leader-key) for more information.
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* `VoidSymbol` - This keycode is emitted in special cases where the original
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function of the key has been removed. Such as in Linux and using `setxkbmap`.
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`setxkbmap -option caps:none`. The `CapsLock` will no longer function as
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before in all applications, instead emitting `VoidSymbol`.
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You can combine modifiers using the `|` symbol (eg: `"CMD|CTRL"`).
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The `key` value can be one of the following keycode identifiers. Note that not
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all of these are meaningful on all platforms:
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`Hyper`, `Super`, `Meta`, `Cancel`, `Backspace`, `Tab`, `Clear`, `Enter`,
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`Shift`, `Escape`, `LeftShift`, `RightShift`, `Control`, `LeftControl`,
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`RightControl`, `Alt`, `LeftAlt`, `RightAlt`, `Menu`, `LeftMenu`, `RightMenu`,
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`Pause`, `CapsLock`, `VoidSymbol`, `PageUp`, `PageDown`, `End`, `Home`, `LeftArrow`,
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`RightArrow`, `UpArrow`, `DownArrow`, `Select`, `Print`, `Execute`,
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`PrintScreen`, `Insert`, `Delete`, `Help`, `LeftWindows`, `RightWindows`,
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`Applications`, `Sleep`, `Numpad0`, `Numpad1`, `Numpad2`, `Numpad3`,
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`Numpad4`, `Numpad5`, `Numpad6`, `Numpad7`, `Numpad8`, `Numpad9`, `Multiply`,
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`Add`, `Separator`, `Subtract`, `Decimal`, `Divide`, `NumLock`, `ScrollLock`,
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`BrowserBack`, `BrowserForward`, `BrowserRefresh`, `BrowserStop`,
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`BrowserSearch`, `BrowserFavorites`, `BrowserHome`, `VolumeMute`,
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`VolumeDown`, `VolumeUp`, `MediaNextTrack`, `MediaPrevTrack`, `MediaStop`,
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`MediaPlayPause`, `ApplicationLeftArrow`, `ApplicationRightArrow`,
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`ApplicationUpArrow`, `ApplicationDownArrow`, `F1`, `F2`, `F3`, `F4`,
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`F5`, `F6`, `F7`, `F8`, `F9`, `F10`, `F11`, `F12`, `F13`, `F14`, `F15`,
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`F16`, `F17`, `F18`, `F19`, `F20`, `F21`, `F22`, `F23`, `F24`.
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Alternatively, a single unicode character can be specified to indicate
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pressing the corresponding key.
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Pay attention to the case of the text that you use and the state of the `SHIFT` modifier, as `key="A"` will match
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### Physical vs Mapped Key Assignments
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{{since('20220319-142410-0fcdea07')}}
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The `key` value can refer either to the physical position of a key on an ANSI
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US keyboard or to the post-keyboard-layout-mapped value produced by a key
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press.
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You can explicitly assign using the physical position by adding a `phys:` prefix
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to the value, for example: `key="phys:A"`. This will match key presses for
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the key that would be in the position of the `A` key on an ANSI US keyboard.
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You can explicitly assign the mapped key by adding a `mapped:` prefix to the
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value, for example: `key="mapped:a"` will match a key press where the OS
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keyboard layout produces `a`, regardless of its physical position.
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If you omit an explicit prefix, wezterm will assume `phys:` and use the
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physical position of the specified key.
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The default key assignments listed above use `phys:`. In previous releases
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there was no physical position support and those assignments were all `mapped:`.
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When upgrading from earlier releases, if you had `{key="N", mods="CMD", ..}` in
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your config, you will need to change it to either
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`{key="N", mods="CMD|SHIFT", ..}` or `{key="mapped:N", mods="CMD", ..}`
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in order to continue to respect the `SHIFT` modifier.
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{{since('20220408-101518-b908e2dd')}}
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A new `key_map_preference` option controls how keys without an explicit `phys:`
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or `mapped:` prefix are treated. If `key_map_preference = "Mapped"` (the
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default), then `mapped:` is assumed. If `key_map_preference = "Physical"` then
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`phys:` is assumed.
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The default key assignments will respect `key_map_preference`.
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### Raw Key Assignments
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In some cases, `wezterm` may not know how to represent a key event in either
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its `phys:` or `mapped:` forms. In that case, you may wish to define an
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assignment in terms of the underlying operating system key code, using a `raw:`
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prefix.
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Similar in concept to the `phys:` mapping described above, the `raw:` mapping
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is independent of the OS keyboard layout. Raw codes are hardware and windowing system dependent, so there is no portable way to list which key does what.
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To discover these values, you can set [debug_key_events =
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true](lua/config/debug_key_events.md) and press the keys of
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interest.
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You can specify a raw key value of 123 by using `key="raw:123"` in your config
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rather than one of the other key values.
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### Leader Key
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{{since('20201031-154415-9614e117')}}
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A *leader* key is a a modal modifier key. If leader is specified in the
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configuration then pressing that key combination will enable a virtual `LEADER`
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modifier.
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While `LEADER` is active, only defined key assignments that include
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`LEADER` in the `mods` mask will be recognized. Other keypresses
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will be swallowed and NOT passed through to the terminal.
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`LEADER` stays active until a keypress is registered (whether it
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matches a key binding or not), or until it has been active for
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the duration specified by `timeout_milliseconds`, at which point
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it will automatically cancel itself.
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Here's an example configuration using `LEADER`. In this configuration,
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pressing `CTRL-A` activates the leader key for up to 1 second (1000
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milliseconds). While `LEADER` is active, the `|` key (with no other modifiers)
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will trigger the current pane to be split.
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```lua
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-- timeout_milliseconds defaults to 1000 and can be omitted
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config.leader = { key = 'a', mods = 'CTRL', timeout_milliseconds = 1000 }
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config.keys = {
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{
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key = '|',
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mods = 'LEADER|SHIFT',
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action = wezterm.action.SplitHorizontal { domain = 'CurrentPaneDomain' },
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},
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-- Send "CTRL-A" to the terminal when pressing CTRL-A, CTRL-A
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{
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key = 'a',
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mods = 'LEADER|CTRL',
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action = wezterm.action.SendString '\x01',
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},
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}
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```
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### VoidSymbol
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{{since('20210814-124438-54e29167')}}
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On X11 systems, If you decide to change certain keys on the keyboard to
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`VoidSymbol` (like `CapsLock`), then you can utilize it as a `LEADER` or any
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other part of key bindings. The following example now uses `VoidSymbol` and
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uses `CapsLock` as a `LEADER` without it affecting the shift / capital state as
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long as you have `setxkbmap -option caps:none` configured.
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```lua
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-- timeout_milliseconds defaults to 1000 and can be omitted
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-- for this example use `setxkbmap -option caps:none` in your terminal.
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config.leader = { key = 'VoidSymbol', mods = '', timeout_milliseconds = 1000 }
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config.keys = {
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{
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key = '|',
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mods = 'LEADER|SHIFT',
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action = wezterm.action.SplitHorizontal { domain = 'CurrentPaneDomain' },
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},
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{
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key = '-',
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mods = 'LEADER',
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action = wezterm.action.SplitVertical { domain = 'CurrentPaneDomain' },
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},
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}
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```
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# Available Actions
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See the [`KeyAssignment` reference](lua/keyassignment/index.md) for information
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on available actions.
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