example: add lua simple-bar

examples/lua/simple-bar/widget/Bar.lua

@@ -0,0 +1,192 @@
+local astal = require("astal")
+local App = astal.App
+local Widget = astal.Widget
+local Variable = astal.Variable
+local Gdk = astal.Gdk
+local GLib = astal.GLib
+local bind = astal.bind
+local Mpris = astal.require("AstalMpris")
+local Battery = astal.require("AstalBattery")
+local Wp = astal.require("AstalWp")
+local Network = astal.require("AstalNetwork")
+local Tray = astal.require("AstalTray")
+local Hyprland = astal.require("AstalHyprland")
+local map = require("lib").map
+
+local function SysTray()
+	local tray = Tray.get_default()
+
+	return Widget.Box({
+		bind(tray, "items"):as(function(items)
+			return map(items, function(item)
+				if item.icon_theme_path ~= nil then
+					App:add_icons(item.icon_theme_path)
+				end
+
+				local menu = item:create_menu()
+
+				return Widget.Button({
+					tooltip_markup = bind(item, "tooltip_markup"),
+					on_destroy = function()
+						if menu ~= nil then
+							menu:destroy()
+						end
+					end,
+					on_click_release = function(self)
+						if menu ~= nil then
+							menu:popup_at_widget(self, Gdk.Gravity.SOUTH, Gdk.Gravity.NORTH, nil)
+						end
+					end,
+					Widget.Icon({
+						g_icon = bind(item, "gicon"),
+					}),
+				})
+			end)
+		end),
+	})
+end
+
+local function FocusedClient()
+	local hypr = Hyprland.get_default()
+	local focused = bind(hypr, "focused-client")
+
+	return Widget.Box({
+		class_name = "Focused",
+		visible = focused,
+		focused:as(function(client)
+			return client and Widget.Label({
+				label = bind(client, "title"):as(tostring),
+			})
+		end),
+	})
+end
+
+local function Wifi()
+	local wifi = Network.get_default().wifi
+
+	return Widget.Icon({
+		tooltip_text = bind(wifi, "ssid"):as(tostring),
+		class_name = "Wifi",
+		icon = bind(wifi, "icon-name"),
+	})
+end
+
+local function AudioSlider()
+	local speaker = Wp.get_default_wp().audio.default_speaker
+
+	return Widget.Box({
+		class_name = "AudioSlider",
+		css = "min-width: 140px;",
+		Widget.Icon({
+			icon = bind(speaker, "volume-icon"),
+		}),
+		Widget.Slider({
+			hexpand = true,
+			on_dragged = function(self)
+				speaker.volume = self.value
+			end,
+			value = bind(speaker, "volume"),
+		}),
+	})
+end
+
+local function BatteryLevel()
+	local bat = Battery.get_default()
+
+	return Widget.Box({
+		class_name = "Battery",
+		visible = bind(bat, "is-present"),
+		Widget.Icon({
+			icon = bind(bat, "icon-name"),
+		}),
+		Widget.Label({
+			label = bind(bat, "percentage"):as(function(p)
+				return tostring(math.floor(p * 100)) .. " %"
+			end),
+		}),
+	})
+end
+
+local function Media()
+	local player = Mpris.Player.new("spotify")
+
+	return Widget.Box({
+		class_name = "Media",
+		visible = bind(player, "available"),
+		Widget.Box({
+			class_name = "Cover",
+			valign = "CENTER",
+			css = bind(player, "cover-art"):as(function(cover)
+				return "background-image: url('" .. (cover or "") .. "');"
+			end),
+		}),
+		Widget.Label({
+			label = bind(player, "metadata"):as(function()
+				return (player.title or "") .. " - " .. (player.artist or "")
+			end),
+		}),
+	})
+end
+
+local function Workspaces()
+	local hypr = Hyprland.get_default()
+
+	return Widget.Box({
+		class_name = "Workspaces",
+		bind(hypr, "workspaces"):as(function(wss)
+			return map(wss, function(ws)
+				return Widget.Button({
+					class_name = bind(hypr, "focused-workspace"):as(function(fw)
+						return fw == ws and "focused" or ""
+					end),
+					on_clicked = function()
+						ws:focus()
+					end,
+					label = bind(ws, "id"):as(tostring),
+				})
+			end)
+		end),
+	})
+end
+
+local function Time(format)
+	local time = Variable(""):poll(1000, function()
+		return GLib.DateTime.new_now_local():format(format)
+	end)
+
+	return Widget.Label({
+		class_name = "Time",
+		on_destroy = function()
+			time:drop()
+		end,
+		label = time(),
+	})
+end
+
+return function(gdkmonitor)
+	return Widget.Window({
+		class_name = "Bar",
+		gdkmonitor = gdkmonitor,
+		anchor = astal.Astal.WindowAnchor.TOP + astal.Astal.WindowAnchor.LEFT + astal.Astal.WindowAnchor.RIGHT,
+		exclusivity = "EXCLUSIVE",
+
+		Widget.CenterBox({
+			Widget.Box({
+				halign = "START",
+				Workspaces(),
+				FocusedClient(),
+			}),
+			Widget.Box({
+				Media(),
+			}),
+			Widget.Box({
+				halign = "END",
+				Wifi(),
+				AudioSlider(),
+				BatteryLevel(),
+				SysTray(),
+				Time("%H:%M - %A %e."),
+			}),
+		}),
+	})
+end