Dump nixos config after scrubing

2025-05-03 23:42:03 -07:00
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+# Cmus widget
+
+Cmus widget that shows the current playing track.
+
+![widget](./screenshots/cmus-widget.png)
+
+Left click toggles playback.
+
+## Installation
+
+Clone the repo under **~/.config/awesome/** and add widget in **rc.lua**:
+
+```lua
+local cmus_widget = require('awesome-wm-widgets.cmus-widget.cmus')
+...
+s.mytasklist, -- Middle widget
+    { -- Right widgets
+    	layout = wibox.layout.fixed.horizontal,
+        ...
+        -- default
+        cmus_widget(),
+        -- customized
+        cmus_widget{
+            space = 5,
+            timeout = 5
+        },
+```
+
+### Shortcuts
+
+To improve responsiveness of the widget when playback is changed by a shortcut use corresponding methods of the widget:
+
+```lua
+awful.key({ modkey, "Shift" }, "p",              function () cmus_widget:play_pause() end, {description = "toggle track",   group = "cmus"}),
+awful.key({                 }, "XF86AudioPlay",  function () cmus_widget:play()       end, {description = "play track",     group = "cmus"}),
+awful.key({                 }, "XF86AudioPause", function () cmus_widget:play()       end, {description = "pause track",    group = "cmus"}),
+awful.key({                 }, "XF86AudioNext",  function () cmus_widget:next_track() end, {description = "next track",     group = "cmus"}),
+awful.key({                 }, "XF86AudioPrev",  function () cmus_widget:prev_track() end, {description = "previous track", group = "cmus"}),
+awful.key({                 }, "XF86AudioStop",  function () cmus_widget:stop()       end, {description = "stop track",      group = "cmus"}),
+```
+
+## Customization
+
+It is possible to customize the widget by providing a table with all or some of the following config parameters:
+
+### Generic parameter
+
+| Name | Default | Description |
+|---|---|---|
+| `font` | `beautiful.font` | Font name and size, like `Play 12` |
+| `path_to_icons` | `/usr/share/icons/Arc/actions/symbolic/` | Alternative path for the icons |
+| `timeout`| 10 | Refresh cooldown |
+| `max_length` | 30 | Maximum lentgh of title. Text will be ellipsized if longer. |
+| `space` | 3 | Space between icon and track title |
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+-------------------------------------------------
+-- Cmus Widget for Awesome Window Manager
+-- Show what's playing, play/pause, etc
+
+-- @author Augusto Gunsch
+-- @copyright 2022 Augusto Gunsch
+-------------------------------------------------
+
+local awful = require("awful")
+local wibox = require("wibox")
+local watch = require("awful.widget.watch")
+local spawn = require("awful.spawn")
+local beautiful = require('beautiful')
+
+local function ellipsize(text, length)
+    -- utf8 only available in Lua 5.3+
+    if utf8 == nil then
+        return text:sub(0, length)
+    end
+    return (utf8.len(text) > length and length > 0)
+        and text:sub(0, utf8.offset(text, length - 2) - 1) .. '...'
+        or text
+end
+
+local cmus_widget = {}
+
+local function worker(user_args)
+
+    local args = user_args or {}
+    local font = args.font or beautiful.font
+
+    local path_to_icons = args.path_to_icons or "/usr/share/icons/Arc/actions/symbolic/"
+    local timeout = args.timeout or 10
+    local max_length = args.max_length or 30
+    local space = args.space or 3
+
+    cmus_widget.widget = wibox.widget {
+        {
+            {
+                id = "playback_icon",
+                resize = false,
+                widget = wibox.widget.imagebox,
+            },
+            layout = wibox.container.place
+        },
+        {
+            id = "text",
+            font = font,
+            widget = wibox.widget.textbox
+        },
+        spacing = space,
+        layout = wibox.layout.fixed.horizontal,
+        update_icon = function(self, name)
+            self:get_children_by_id("playback_icon")[1]:set_image(path_to_icons .. name)
+        end,
+        set_title = function(self, title)
+            self:get_children_by_id("text")[1]:set_text(title)
+        end
+    }
+
+    local function update_widget(widget, stdout, _, _, code)
+        if code == 0 then
+            local cmus_info = {}
+
+            for s in stdout:gmatch("[^\r\n]+") do
+                local key, val = string.match(s, "^tag (%a+) (.+)$")
+
+                if key and val then
+                    cmus_info[key] = val
+                else
+                    key, val = string.match(s, "^set (%a+) (.+)$")
+
+                    if key and val then
+                        cmus_info[key] = val
+                    else
+                        key, val = string.match(s, "^(%a+) (.+)$")
+                        if key and val then
+                            cmus_info[key] = val
+                        end
+                    end
+                end
+            end
+
+            local title = cmus_info.title
+
+            if not title and cmus_info.file then
+                title = cmus_info.file:gsub("%..-$", "")
+                title = title:gsub("^.+/", "")
+            end
+
+            if title then
+                if cmus_info["status"] == "playing" then
+                    widget:update_icon("media-playback-start-symbolic.svg")
+                elseif cmus_info["status"] == "paused" then
+                    widget:update_icon("media-playback-pause-symbolic.svg")
+                else
+                    widget:update_icon("media-playback-stop-symbolic.svg")
+                end
+
+                widget:set_title(ellipsize(title, max_length))
+                widget.visible = true
+            else
+                widget.visible = false
+            end
+        else
+            widget.visible = false
+        end
+    end
+
+    function cmus_widget:update()
+        spawn.easy_async("cmus-remote -Q",
+        function(stdout, _, _, code)
+            update_widget(cmus_widget.widget, stdout, _, _, code)
+        end)
+    end
+
+    function cmus_widget:play_pause()
+        spawn("cmus-remote -u")
+        cmus_widget.update()
+    end
+
+    function cmus_widget:pause()
+        spawn("cmus-remote -U")
+        cmus_widget.update()
+    end
+
+    function cmus_widget:play()
+        spawn("cmus-remote -p")
+        cmus_widget.update()
+    end
+
+    function cmus_widget:next_track()
+        spawn("cmus-remote -n")
+        cmus_widget.update()
+    end
+
+    function cmus_widget:prev_track()
+        spawn("cmus-remote -r")
+        cmus_widget.update()
+    end
+
+    function cmus_widget:stop()
+        spawn("cmus-remote -s")
+        cmus_widget.update()
+    end
+
+    cmus_widget.widget:buttons(
+            awful.util.table.join(
+                    awful.button({}, 1, function() cmus_widget:play_pause() end)
+            )
+    )
+
+    watch("cmus-remote -Q", timeout, update_widget, cmus_widget.widget)
+
+    return cmus_widget.widget
+end
+
+return setmetatable(cmus_widget, { __call = function(_, ...)
+    return worker(...)
+end })