awesomewm/core/tasklist.lua

local tasklist = {}

--[[ Create a tasklist widget
s.mytasklist = awful.widget.tasklist {
	screen  = s,
	filter  = awful.widget.tasklist.filter.currenttags,
	buttons = tasklist_buttons
}  ]]--

local buttons = gears.table.join(
	awful.button( {}, 1,
		function (c)
			if c == client.focus then
				c.minimized = true
			else
				c:emit_signal(
					"request::activate",
					"tasklist",
					{raise = true}
				)
			end
		end
	)
)


tasklist.make = function(screen)
	return awful.widget.tasklist({
		screen = screen,
		filter = awful.widget.tasklist.filter.currenttags,
		buttons = buttons,
		layout = {
			spacing_widget = {
				{
					forced_width = beautiful.dpi(2),
					forced_height = beautiful.dpi(12),
					thickness = beautiful.dpi(1),
					color = "#000000FF", --beautiful.color.bar.spacer,
					widget = wibox.widget.separator
				},
				valign = "center",
				halign = "center",
				widget = wibox.container.place,
			},
			spacing = 1,
			layout = wibox.layout.fixed.horizontal
		},

		-- Notice that there is *NO* wibox.wibox prefix, it is a template,
		-- not a widget instance.
		widget_template = {
			{
				wibox.widget.base.make_widget(),
				forced_height = beautiful.dpi(3),
				id = "top_tab",
				widget = wibox.container.background,
			},
			{
				{
					{
						widget = wibox.container.place,
						halign = "center",
						valign = "bottom",
						fill_vertical = true,
						{
							id = "clienticon",
							-- Don't use awesomewm's stock clienticon.
							-- using a raw imagebox lets us handle nil icons...
							-- also, see th call to awesome.preferred_icon_size in rc.lua.
							widget = wibox.widget.imagebox,
						},
					},
					margins = beautiful.dpi(3),
					widget = wibox.container.margin
				},
				id = "background",
				widget = wibox.container.background,
			},
			nil,


			-- The create callback is only called once, when the task indicator
			--    is created.
			create_callback = function(self, c, index, objects)

				-- Set indicator icon
				if c.icon == nil then
					self:get_children_by_id("clienticon")[1].image = beautiful.icons[config.core.default_clienticon]
				else
					self:get_children_by_id("clienticon")[1].image = c.icon
				end
				self:get_children_by_id("clienticon")[1]:emit_signal("widget::redraw_needed")


				-- Update top color
				if c == client.focus then
					self:get_children_by_id("top_tab")[1].bg = "#2DA0DA"
				elseif c.minimized then
					self:get_children_by_id("top_tab")[1].bg = beautiful.color.bar.hover_bg --beautiful.color.transparent
				else
					self:get_children_by_id("top_tab")[1].bg = "#2DA0DA77"
				end

				-- Change background when mouse is over widget
				self:connect_signal("mouse::enter", function(result)
					--self:get_children_by_id("top_tab")[1].bg = "#2DA0DA"
					self:get_children_by_id("background")[1].bg = beautiful.color.bar.hover_bg

				end)

				self:connect_signal("mouse::leave", function(result)
					self:get_children_by_id("background")[1].bg = beautiful.color.transparent

					if c == client.focus then
						self:get_children_by_id("top_tab")[1].bg = "#2DA0FF"
					elseif c.minimized then
						self:get_children_by_id("top_tab")[1].bg = beautiful.color.bar.hover_bg --beautiful.color.transparent
					else
						self:get_children_by_id("top_tab")[1].bg = "#2DA0DA77"
					end
				end)
			end,

			-- The update callback is called every time the icon needs updating.
			update_callback = function(self, c, index, objects)

				-- Update indicator icon
				if c.icon == nil then
					self:get_children_by_id("clienticon")[1].image = beautiful.icons[config.core.default_clienticon]
				else
					self:get_children_by_id("clienticon")[1].image = c.icon
				end
				self:get_children_by_id("clienticon")[1]:emit_signal("widget::redraw_needed")


				-- Update top color
				if c == client.focus then
					self:get_children_by_id("top_tab")[1].bg = "#2DA0DA"
				elseif c.minimized then
					self:get_children_by_id("top_tab")[1].bg = beautiful.color.bar.hover_bg --beautiful.color.transparent
				else
					self:get_children_by_id("top_tab")[1].bg = "#2DA0DA77"
				end
			end,
			layout = wibox.layout.align.vertical,
		},
	})
end

return tasklist.make