awesomewm/modules/volume/popup.lua

local volume = req_rel(..., "util")

return function(s)
	local widget = wibox.widget {
		{
			{
				{
					{  -- Icon and margins
						nil,
						{
							nil,
							{
								id = "icon",
								forced_height = beautiful.dpi(100),
								image = beautiful.icons.volume.high,
								widget = wibox.widget.imagebox
							},
							nil,
							expand = "none",
							id = "icon_margin2",
							layout = wibox.layout.align.vertical
						},
						nil,
						id = "icon_margin1",
						expand = "none",
						layout = wibox.layout.align.horizontal
					},
					{  -- Text and percentage
						{
							id = "label",
							text = "Volume",
							align = "left",
							valign = "center",
							widget = wibox.widget.textbox
						},
						nil,
						{
							id = "value",
							text = "0%",
							align = "center",
							valign = "center",
							widget = wibox.widget.textbox
						},
						id = "label_value_layout",
						forced_height = beautiful.dpi(48),
						layout = wibox.layout.align.horizontal,
					},
					{  -- Progress bar
						{
							id = "volume_bar",
							shape = gears.shape.rounded_bar,
							forced_height = beautiful.dpi(10),
							background_color = "#AAAAAA88",
							bar_color = "#ffffff",
							color = "#ffffff",
							bar_shape = gears.shape.rounded_bar,
							max_value = 100,
							widget = wibox.widget.progressbar
						},
						id = "bar_layout",
						forced_height = beautiful.dpi(24),
						widget = wibox.container.place
					},
					id = "icon_bar_layout",
					spacing = beautiful.dpi(0),
					layout = wibox.layout.align.vertical
				},
				id = "popup_layout",
				layout = wibox.layout.align.vertical,
			},
			id = "container",
			left = beautiful.dpi(20),
			right = beautiful.dpi(20),
			top = beautiful.dpi(10),
			bottom = beautiful.dpi(10),
			widget = wibox.container.margin
		},
		bg ="#000000AA",
		widget = wibox.container.background,
		ontop = true,
		visible = true,
		type = "notification",
		forced_height = beautiful.dpi(180),
		forced_width = beautiful.dpi(300),
		offset = beautiful.dpi(5),
	}

	local popup_container = awful.popup {
		widget = wibox.container.background,
		ontop = true,
		bg = "#00000000",
		stretch = false,
		visible = false,
		screen = s,

		placement = function(c)
			awful.placement.centered(
				c,
				{
					honor_workarea = true,
					margins = {
						top = beautiful.dpi(200)
					}
				}
			)
		end,

		-- Only set corner radius here.
		shape = function(cr, width, height)
			gears.shape.rounded_rect(
				cr,
				width,
				height,
				beautiful.dpi(20)
			)
		end
	}

	popup_container:setup {
		widget,
		layout = wibox.layout.fixed.horizontal
	}


	local function update_popup()
		volume.commands:get(function(status)

			awesome.emit_signal("widget::volume")
			widget.
				container.
				popup_layout.
				icon_bar_layout.
				label_value_layout.
				value:set_text(status.value .. "%")

			awesome.emit_signal(
				"widget::volume:update",
				status.value
			)

			local icon
			if status.mute then
				icon = beautiful.icons.volume.mute
			elseif status.value < 1 then
				icon = beautiful.icons.volume.off
			elseif status.value >= 1 and status.value < 34 then
				icon = beautiful.icons.volume.low
			elseif status.value >= 34 and status.value < 67 then
				icon = beautiful.icons.volume.medium
			elseif status.value >= 67 then
				icon = beautiful.icons.volume.high
			end

			widget.
				container.
				popup_layout.
				icon_bar_layout.
				icon_margin1.
				icon_margin2.
				icon:set_image(icon)
		end)
	end

	local update_slider = function()
		volume.commands:get(function(status)
			widget.
				container.
				popup_layout.
				icon_bar_layout.
				bar_layout.
				volume_bar:set_value(status.value)
			update_popup()
		end)
	end

	update_slider()

	local hide_popup_timer = gears.timer {
		timeout = 1,
		autostart = true,
		callback = function()
			popup_container.visible = false
		end
	}

	awesome.connect_signal("module::volume_popup:show",
		function()
			update_slider()
			if s == mouse.screen then
				popup_container.visible = true
			end

			if hide_popup_timer.started then
				hide_popup_timer:again()
			else
				hide_popup_timer:start()
			end
		end
	)

	popup_container:connect_signal("button::press",
		function()
			popup_container.visible = false
			hide_popup_timer:stop()
		end
	)
end