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5f3462240c
This adds the 'send' action to the ipc module that can be used to send arbitrary text to the module:
polybar-msg action "#ipc.send.%{F#4444ff}hello%{F-}"
* feat(ipc): allow receiving arbitrary text on IPC socket
Instead of just allowing hook numbers to be executed, the user can
send arbitrary text and the IPC module will put it in the bar. The IPC
payload format is extended to accept an arbitrary string if the first
character after the module name is ':'.
polybar-msg hook test :'%{F#4444ff}hello%{F-}'
Fix #2455
* Use actions for sending data to ipc module
* ipc: Don't use exceptions when no hooks are defined
* Update src/modules/ipc.cpp
Co-authored-by: patrick96 <p.ziegler96@gmail.com>
443 lines
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ReStructuredText
443 lines
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ReStructuredText
Actions
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=======
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.. versionadded:: 3.5.0
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.. contents:: Table of Contents
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:local:
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"Actions" are used to trigger certain behavior in modules.
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For example, when you click on your volume module (pulseaudio or alsa), polybar
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internally sends an action to that module that tells it to mute/unmute the
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audio.
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These actions are not only used internally, but users can also send these
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actions to polybar through `Inter Process Communication
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<https://github.com/polybar/polybar/wiki/Inter-process-messaging>`_ (IPC) to
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trigger certain behavior in polybar modules.
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.. _action-string-format:
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Action String Format
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--------------------
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An action string follows the following format:
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::
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#NAME.ACTION[.DATA]
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Where ``NAME`` is the name of the target module (not the type!) and ``ACTION``
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is the name of the action in that module. ``DATA`` is optional data attached to
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an action (for example to say which menu level should be opened).
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For example the
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`date module <https://github.com/polybar/polybar/wiki/Module:-date>`_ supports
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the ``toggle`` action to toggle between the regular and the alternative time and
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date format.
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If you have the following date module:
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.. code-block:: ini
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[module/mydate]
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type = internal/date
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...
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The action string for toggling between the date formats would look like this:
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::
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#mydate.toggle
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Note that we use the name of the module (``mydate``) and not the type.
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As an example for an action string with additional data, take the menu module:
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.. code-block:: ini
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[module/powermenu]
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type = custom/menu
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menu-0-0 = Poweroff
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menu-0-0-exec = poweroff
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menu-0-1 = Suspend
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menu-0-1-exec = systemctl suspend
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The action name to open a certain menu level is ``open``, so to open level 0
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(`menu-0`), the action string additionally has the level attached to it:
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::
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#powermenu.open.0
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Triggering Actions
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------------------
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Most modules already use action strings to trigger actions when you click on or
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scroll over a module.
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But in some cases you may want or need to manually send action strings to
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polybar to trigger a certain behavior.
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Everywhere where you can specify a command to run on click or scroll, you can
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also specify an action string.
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For example, in the bar section, you can specify a command that is triggered
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when you click anywhere on the bar (where there isn't another click action):
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.. code-block:: ini
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[bar/mybar]
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...
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click-left = #mydate.toggle
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...
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This will then trigger the ``toggle`` action on the ``mydate`` module when you
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click anywhere on the bar.
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Similarly, we can use action strings in ``%{A}``
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`formatting tags <https://github.com/polybar/polybar/wiki/Formatting#action-a>`_
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just as we would regular commands:
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::
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%{A1:firefox:}%{A3:#mydate.toggle:}Opens firefox on left-click and toggles the
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date on right-click %{A}%{A}
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Finally, polybar's `Inter Process Communication
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<https://github.com/polybar/polybar/wiki/Inter-process-messaging>`_ (IPC) can
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also be used to trigger actions:
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.. code-block:: bash
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polybar-msg action "#mydate.toggle"
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.. note::
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The quotes around the action string are necessary, otherwise your shell may
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interpret the ``#`` as the beginning of the comment and ignore the rest of the
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line.
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Available Actions
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-----------------
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The following modules have actions available. Most of them are already used by
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the module by default for click and scroll events.
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All Modules
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^^^^^^^^^^^
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These actions are available to all modules and are prefixed with ``module_``.
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:``module_show``, ``module_hide``:
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Shows/Hides a module. The module is still running in the background when
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hidden, it is just not drawn. The starting state can be configured with the
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`hidden` configuration option.
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.. versionadded:: 3.6.0
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:``module_toggle``:
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Toggles the visibility of a module.
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.. versionadded:: 3.6.0
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internal/date
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^^^^^^^^^^^^^
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:``toggle``:
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Toggles the date/time format between ``date``/``time`` and
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``date-alt``/``time-alt``
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internal/alsa
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^^^^^^^^^^^^^
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:``inc``, ``dec``:
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Increases/Decreases the volume by ``interval`` percentage points, where
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``interval`` is the config setting in the module. Volume changed like this
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will never go above 100%.
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:``toggle``:
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Toggles between muted and unmuted.
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internal/pulseaudio
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^^^^^^^^^^^^^^^^^^^
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:``inc``, ``dec``:
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Increases/Decreases the volume by ``interval`` percentage points, where
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``interval`` is the config setting in the module. Volume changed like this
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will never go above ~153% (if ``use-ui-max`` is set to ``true``) or 100% (if
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not).
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:``toggle``:
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Toggles between muted and unmuted.
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internal/xbacklight
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^^^^^^^^^^^^^^^^^^^
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:``inc``, ``dec``:
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Increases/Decreases screen brightness 5 percentage points.
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internal/backlight
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^^^^^^^^^^^^^^^^^^
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:``inc``, ``dec``:
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Increases/Decreases screen brightness 5 percentage points.
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internal/xkeyboard
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^^^^^^^^^^^^^^^^^^
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:``switch``:
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Cycles through configured keyboard layouts.
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internal/mpd
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^^^^^^^^^^^^
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:``play``: Starts playing the current song.
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:``pause``: Pauses the current song.
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:``stop``: Stops playing.
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:``prev``: Starts playing the previous song.
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:``next``: Starts playing the next song.
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:``repeat``: Toggles repeat mode.
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:``single``: Toggles single mode.
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:``random``: Toggles random mode.
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:``consume``: Toggles consume mode.
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:``seek``: *(Has Data)* Seeks inside the current song.
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The data must be of the form ``[+-]N``, where ``N`` is a number
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between 0 and 100.
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If either ``+`` or ``-`` is used, it will seek forward or backward
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from the current position by ``N%`` (relative to the length of the
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song).
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Otherwise it will seek to ``N%`` of the current song.
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internal/xworkspaces
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^^^^^^^^^^^^^^^^^^^^
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:``focus``: *(Has Data)* Switches to the given workspace.
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The data is the index of the workspace that should be selected.
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:``next``: Switches to the next workspace. The behavior of this action is
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affected by the ``pin-workspaces`` setting.
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:``prev``: Switches to the previous workspace. The behavior of this action is
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affected by the ``pin-workspaces`` setting.
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internal/bspwm
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^^^^^^^^^^^^^^
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:``focus``: *(Has Data)* Switches to the given workspace.
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The data has the form ``N+M``, where ``N`` is the index of the
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monitor and ``M`` the index of the workspace on that monitor.
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Both indices are 0-based and correspond to the position the monitor
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and workspace appear in the output of ``bspc subscribe report``.
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:``next``: Switches to the next workspace. The behavior of this action is
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affected by the ``pin-workspaces`` setting.
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:``prev``: Switches to the previous workspace. The behavior of this action is
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affected by the ``pin-workspaces`` setting.
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internal/i3
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^^^^^^^^^^^
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:``focus``: *(Has Data)* Switches to the given workspace.
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The data is the name of the workspace defined in the i3 config.
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:``next``: Switches to the next workspace. The behavior of this action is
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affected by the ``pin-workspaces`` setting.
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:``prev``: Switches to the previous workspace. The behavior of this action is
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affected by the ``pin-workspaces`` setting.
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custom/menu
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^^^^^^^^^^^
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:``open``: *(Has Data)* Opens the given menu level
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The data is a single number specifying which menu level should be
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opened.
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:``close``: Closes the menu
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:``exec``: *(Has Data)* Executes the command at the given menu element.
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The data has the form ``N-M`` and the action will execute the command
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in ``menu-N-M-exec``.
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custom/ipc
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^^^^^^^^^^
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:``send``: *(Has Data)* Replace the contents of the module with the data passed in this action.
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.. versionadded:: 3.6.0
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Deprecated Action Names
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-----------------------
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.. deprecated:: 3.5.0
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In earlier versions (< 3.5.0) action strings only included information about the
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module type.
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This meant in bars that contained multiple different modules of the same type,
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actions for these modules were sometimes processed by the wrong module with the
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same type.
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Since version 3.5.0, this no longer happens. However, this also means we had to
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change what actions are recognized by polybar modules.
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If you explicitly use any polybar action names in your config or any of your
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scripts, you are advised to change them, as they may stop working at some point
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in the future.
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For now polybar still supports the old action names, will convert them to the
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appropriate new action name, and will print a warning to help you find old
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action names in your config.
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If you use the `menu module
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<https://github.com/polybar/polybar/wiki/Module:-menu>`_, you most likely use
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old action names to open and close the menu (for example ``menu-open-1`` or
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``menu-close``).
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The ``i3wm-wsnext``, ``i3wm-wsprev``, ``bspwm-desknext``, and ``bspwm-deskprev``
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actions, to switch workspaces in i3 and bspwm, may also appear in your config.
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Migration
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^^^^^^^^^
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Updating your config to use the new action names is quite straightforward.
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For each action name, consult the table below to find the new action name.
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Afterwards build the complete action string as described in
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:ref:`action-string-format`.
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Please see :ref:`below <menu-example>` for an example of migrating a typical menu module.
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+-------------------------+-----------------------+---------------+
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|Module Type |Deprecated Action Name |New Action Name|
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+=========================+=======================+===============+
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|``internal/date`` |``datetoggle`` |``toggle`` |
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+-------------------------+-----------------------+---------------+
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|``internal/alsa`` |``volup`` |``inc`` |
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| +-----------------------+---------------+
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| |``voldown`` |``dec`` |
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| +-----------------------+---------------+
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| |``volmute`` |``toggle`` |
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+-------------------------+-----------------------+---------------+
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|``internal/pulseaudio`` |``pa_volup`` |``inc`` |
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| +-----------------------+---------------+
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| |``pa_voldown`` |``dec`` |
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| +-----------------------+---------------+
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| |``pa_volmute`` |``toggle`` |
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+-------------------------+-----------------------+---------------+
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|``internal/xbacklight`` |``xbacklight+`` |``inc`` |
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| +-----------------------+---------------+
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| |``xbacklight-`` |``dec`` |
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+-------------------------+-----------------------+---------------+
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|``internal/backlight`` |``backlight+`` |``inc`` |
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| +-----------------------+---------------+
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| |``backlight-`` |``dec`` |
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+-------------------------+-----------------------+---------------+
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|``internal/xkeyboard`` |``xkeyboard/switch`` |``switch`` |
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+-------------------------+-----------------------+---------------+
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|``internal/mpd`` |``mpdplay`` |``play`` |
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| +-----------------------+---------------+
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| |``mpdpause`` |``pause`` |
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| +-----------------------+---------------+
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| |``mpdstop`` |``stop`` |
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| +-----------------------+---------------+
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| |``mpdprev`` |``prev`` |
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| +-----------------------+---------------+
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| |``mpdnext`` |``next`` |
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| +-----------------------+---------------+
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| |``mpdrepeat`` |``repeat`` |
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| +-----------------------+---------------+
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| |``mpdsingle`` |``single`` |
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| +-----------------------+---------------+
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| |``mpdrandom`` |``random`` |
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| +-----------------------+---------------+
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| |``mpdconsume`` |``consume`` |
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| +-----------------------+---------------+
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| |``mpdseekN`` |``seek.N`` |
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+-------------------------+-----------------------+---------------+
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|``internal/xworkspaces`` |``xworkspaces-focus=N``|``focus.N`` |
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| +-----------------------+---------------+
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| |``xworkspaces-next`` |``next`` |
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| +-----------------------+---------------+
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| |``xworkspaces-prev`` |``prev`` |
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+-------------------------+-----------------------+---------------+
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|``internal/bspwm`` |``bspwm-deskfocusN`` |``focus.N`` |
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| +-----------------------+---------------+
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| |``bspwm-desknext`` |``next`` |
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| +-----------------------+---------------+
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| |``bspwm-deskprev`` |``prev`` |
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+-------------------------+-----------------------+---------------+
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|``internal/i3`` |``i3wm-wsfocus-N`` |``focus.N`` |
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| +-----------------------+---------------+
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| |``i3-wsnext`` |``next`` |
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| +-----------------------+---------------+
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| |``i3-wsprev`` |``prev`` |
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+-------------------------+-----------------------+---------------+
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|``custom/menu`` |``menu-open-N`` |``open.N`` |
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| +-----------------------+---------------+
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| |``menu-close`` |``close`` |
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+-------------------------+-----------------------+---------------+
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.. note::
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Some deprecated action names are suffixed with ``N``, this means that that
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action has some additional data (represented by that ``N``), in the new
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action names this data will appear in exactly the same way, after a period.
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.. _menu-example:
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Menu Module Example
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"""""""""""""""""""
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The menu module is the only module where we have to explicitly use actions for
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it to work. Because of this, almost everyone will need to update their menu
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module to use the new action format.
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Below you can see an example of a menu module:
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.. code-block:: ini
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[module/apps]
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type = custom/menu
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menu-0-0 = Browsers
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menu-0-0-exec = menu-open-1
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menu-0-1 = Multimedia
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menu-0-1-exec = menu-open-2
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menu-1-0 = Firefox
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menu-1-0-exec = firefox &
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menu-1-1 = Chromium
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menu-1-1-exec = chromium &
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menu-2-0 = Gimp
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menu-2-0-exec = gimp &
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menu-2-1 = Scrot
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menu-2-1-exec = scrot &
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This module uses two actions: ``menu-open-1`` and ``menu-open-2``.
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These are actions with data, the data specifies which level of the menu should
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be opened.
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Looking at the table, we see that the new action name for ``menu-open-N`` is
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``open.N``, where ``.N`` is the data attached to the action.
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Putting this together with the name of the module gives us ``#apps.open.1`` and
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``#apps.open.2`` as action strings.
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Since your menu module likely has a different name, your action strings will
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likely not use ``apps``, but the name of your module.
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.. code-block:: ini
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[module/apps]
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type = custom/menu
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menu-0-0 = Browsers
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menu-0-0-exec = #apps.open.1
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menu-0-1 = Multimedia
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menu-0-1-exec = #apps.open.2
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menu-1-0 = Firefox
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menu-1-0-exec = firefox &
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menu-1-1 = Chromium
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menu-1-1-exec = chromium &
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menu-2-0 = Gimp
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menu-2-0-exec = gimp &
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menu-2-1 = Scrot
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menu-2-1-exec = scrot &
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