393 lines
15 KiB
Lua
393 lines
15 KiB
Lua
local cairo = require("lgi").cairo
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local awful = require("awful")
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local gears = require("gears")
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local wibox = require("wibox")
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local beautiful = require("beautiful")
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local helpers = require("helpers")
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local dpi = beautiful.xresources.apply_dpi
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local window_switcher_first_client -- The client that was focused when the window_switcher was activated
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local window_switcher_minimized_clients = {} -- The clients that were minimized when the window switcher was activated
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local window_switcher_grabber
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local get_num_clients = function(s)
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local minimized_clients_in_tag = 0
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local matcher = function(c)
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return awful.rules.match(c, {
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minimized = true,
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skip_taskbar = false,
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hidden = false,
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first_tag = s.selected_tag
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})
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end
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for c in awful.client.iterate(matcher) do
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minimized_clients_in_tag = minimized_clients_in_tag + 1
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end
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return minimized_clients_in_tag + #s.clients
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end
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local window_switcher_hide = function()
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-- Add currently focused client to history
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if client.focus then
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local window_switcher_last_client = client.focus
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awful.client.focus.history.add(window_switcher_last_client)
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-- Raise client that was focused originally
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-- Then raise last focused client
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if window_switcher_first_client and window_switcher_first_client.valid then
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window_switcher_first_client:raise()
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window_switcher_last_client:raise()
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end
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end
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-- Minimize originally minimized clients
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local s = awful.screen.focused()
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local clients = s.selected_tag:clients()
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for _, c in pairs(window_switcher_minimized_clients) do
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if c and c.valid and not (client.focus and client.focus == c) then
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c.minimized = true
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end
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end
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-- Reset helper table
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window_switcher_minimized_clients = {}
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-- Resume recording focus history
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awful.client.focus.history.enable_tracking()
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-- Stop and hide window_switcher
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awful.keygrabber.stop(window_switcher_grabber)
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s.window_switcher_box.visible = false
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end
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local function draw_widget(s, type, client_width, client_height, client_margin,
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background, border_radius, border_width,
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border_color, text_font, font_icons, font_icons_font,
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mouse_keys)
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local set_icon = function(item, c)
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local i = font_icons[c.class] or font_icons['_']
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item:get_children_by_id('text_icon')[1].markup =
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"<span foreground='" .. i.color .. "'>" .. i.symbol .. "</span>"
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end
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local update_thumbnail = function(self, c)
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local content = gears.surface(c.content)
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local cr = cairo.Context(content)
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local x, y, w, h = cr:clip_extents()
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local img = cairo.ImageSurface.create(cairo.Format.ARGB32, w - x, h - y)
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cr = cairo.Context(img)
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cr:set_source_surface(content, 0, 0)
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cr.operator = cairo.Operator.SOURCE
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cr:paint()
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self:get_children_by_id('thumbnail')[1].image = gears.surface.load(img)
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end
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local icon_widget = function()
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if (font_icons) ~= nil then
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return {
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widget = wibox.widget.textbox,
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id = 'text_icon',
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font = font_icons_font,
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forced_width = dpi(50),
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align = "center",
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valign = "center"
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}
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else
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return {
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awful.widget.clienticon,
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margins = 5,
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forced_width = dpi(50),
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widget = wibox.container.margin
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}
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end
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end
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local tasklist_widget = function()
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if type == "text" then
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return awful.widget.tasklist {
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screen = s,
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filter = awful.widget.tasklist.filter.currenttags,
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buttons = mouse_keys,
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style = {font = text_font},
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layout = {layout = wibox.layout.fixed.vertical},
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widget_template = {
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widget = wibox.container.background,
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id = "bg_role",
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forced_height = item_height,
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create_callback = function(self, c, _, __)
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set_icon(self, c)
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c:connect_signal("property::class",
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function()
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set_icon(self, c)
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end)
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end,
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{
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layout = wibox.layout.fixed.horizontal,
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icon_widget(),
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{
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{
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widget = wibox.widget.textbox,
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id = 'text_role',
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align = "center"
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},
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widget = wibox.container.margin,
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left = dpi(6),
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right = dpi(14),
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-- Add margins to top and bottom in order to force the
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-- text to be on a single line, if needed. Might need
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-- to adjust them according to font size.
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top = dpi(14),
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bottom = dpi(14)
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}
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}
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}
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}
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else
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return awful.widget.tasklist {
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screen = s,
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filter = awful.widget.tasklist.filter.currenttags,
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buttons = mouse_keys,
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style = {font = text_font},
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layout = {layout = wibox.layout.flex.horizontal},
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widget_template = {
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widget = wibox.container.background,
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id = "bg_role",
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forced_width = client_width,
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forced_height = client_height,
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create_callback = function(self, c, _, __)
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if (font_icons) ~= nil then
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set_icon(self, c)
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c:connect_signal("property::class",
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function()
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set_icon(self, c)
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end)
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end
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update_thumbnail(self, c)
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end,
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update_callback = function(self, c, _, __)
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if (font_icons) ~= nil then
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set_icon(self, c)
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c:connect_signal("property::class",
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function()
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set_icon(self, c)
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end)
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end
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update_thumbnail(self, c)
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end,
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{
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layout = wibox.layout.flex.vertical,
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{
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widget = wibox.container.margin,
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left = dpi(6),
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right = dpi(14),
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-- Add margins to top and bottom in order to force the
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-- text to be on a single line, if needed. Might need
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-- to adjust them according to font size.
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top = dpi(14),
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bottom = dpi(14),
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{
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widget = wibox.widget.imagebox,
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id = 'thumbnail',
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resize = true,
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horizontal_fit_policy = "fit",
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vertical_fit_policy = "fit"
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}
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},
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{
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layout = wibox.layout.fixed.horizontal,
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icon_widget(),
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{
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widget = wibox.container.margin,
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left = dpi(6),
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right = dpi(14),
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-- Add margins to top and bottom in order to force the
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-- text to be on a single line, if needed. Might need
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-- to adjust them according to font size.
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top = dpi(14),
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bottom = dpi(14),
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{
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widget = wibox.widget.textbox,
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id = 'text_role',
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align = "center"
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}
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}
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}
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}
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}
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}
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end
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end
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s.window_switcher_tasklist = tasklist_widget()
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s.window_switcher_box = awful.popup({
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type = "dropdown_menu",
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visible = false,
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ontop = true,
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screen = s,
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bg = "#00000000",
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widget = {
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{
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s.window_switcher_tasklist,
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margins = client_margin,
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widget = wibox.container.margin
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},
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bg = background,
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shape_border_color = border_color,
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shape_border_width = border_width,
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shape = helpers.rrect(border_radius),
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widget = wibox.container.background
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}
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})
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-- Center window switcher whenever its height changes
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s.window_switcher_box:connect_signal("property::width", function()
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awful.placement.centered(s.window_switcher_box,
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{honor_workarea = true, honor_padding = true})
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if s.window_switcher_box.visible and get_num_clients(s) == 0 then
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window_switcher_hide()
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end
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end)
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s.window_switcher_box:connect_signal("property::height", function()
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awful.placement.centered(s.window_switcher_box,
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{honor_workarea = true, honor_padding = true})
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if s.window_switcher_box.visible and get_num_clients(s) == 0 then
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window_switcher_hide()
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end
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end)
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end
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local enable = function(opts)
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local opts = opts or {}
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local type = opts.type or "thumbnail"
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local client_width
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if type == "thumbnail" then
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client_width = opts.client_width or dpi(150)
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else
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client_width = opts.client_width or dpi(500)
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end
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local client_height = opts.client_height or dpi(250)
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local client_margin = opts.client_margin or dpi(10)
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local background = beautiful.window_switcher_widget_bg or "#000000"
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local border_radius = beautiful.window_switcher_widget_border_radius or
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dpi(0)
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local border_width = beautiful.window_switcher_widget_border_width or dpi(0)
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local border_color = beautiful.window_switcher_widget_border_color or
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"#ffffff"
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local text_font = opts.text_font or beautiful.font
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local font_icons = opts.font_icons or nil
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local font_icons_font = opts.font_icons_font or beautiful.font
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local hide_window_switcher_key = opts.hide_window_switcher_key or 'Escape'
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local select_client_key = opts.select_client_key or 1
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local minimize_key = opts.minimize_key or 'n'
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local unminimize_key = opts.unminimize_key or 'N'
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local kill_client_key = opts.kill_client_key or 'q'
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local cycle_key = opts.cycle_key or 'Tab'
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local previous_key = opts.previous_key or 'Left'
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local next_key = opts.next_key or 'Right'
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local vim_previous_key = opts.vim_previous_key or 'h'
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local vim_next_key = opts.vim_next_key or 'l'
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local scroll_previous_key = opts.scroll_previous_key or 4
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local scroll_next_key = opts.scroll_next_key or 5
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local mouse_keys = gears.table.join(awful.button {
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modifiers = {"Any"},
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button = select_client_key,
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on_press = function(c) client.focus = c end
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}, awful.button {
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modifiers = {"Any"},
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button = scroll_previous_key,
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on_press = function() awful.client.focus.byidx(-1) end
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}, awful.button {
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modifiers = {"Any"},
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button = scroll_next_key,
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on_press = function() awful.client.focus.byidx(1) end
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})
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local keyboard_keys = {
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[hide_window_switcher_key] = window_switcher_hide,
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[minimize_key] = function()
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if client.focus then client.focus.minimized = true end
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end,
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[unminimize_key] = function()
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if awful.client.restore() then
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client.focus = awful.client.restore()
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end
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end,
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[kill_client_key] = function()
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if client.focus then client.focus:kill() end
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end,
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[cycle_key] = function() awful.client.focus.byidx(1) end,
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[previous_key] = function() awful.client.focus.byidx(1) end,
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[next_key] = function() awful.client.focus.byidx(-1) end,
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[vim_previous_key] = function() awful.client.focus.byidx(1) end,
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[vim_next_key] = function() awful.client.focus.byidx(-1) end
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}
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awesome.connect_signal("module::window_switcher::visibility", function(s)
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local number_of_clients = get_num_clients(s)
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if number_of_clients == 0 then return end
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-- Store client that is focused in a variable
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window_switcher_first_client = client.focus
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-- Stop recording focus history
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awful.client.focus.history.disable_tracking()
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-- Go to previously focused client (in the tag)
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awful.client.focus.history.previous()
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-- Track minimized clients
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-- Unminimize them
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-- Lower them so that they are always below other
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-- originally unminimized windows
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local clients = s.selected_tag:clients()
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for _, c in pairs(clients) do
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if c.minimized then
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table.insert(window_switcher_minimized_clients, c)
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c.minimized = false
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c:lower()
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end
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end
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-- Start the keygrabber
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window_switcher_grabber = awful.keygrabber.run(
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function(_, key, event)
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if event == "release" then
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-- Hide if the modifier was released
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-- We try to match Super or Alt or Control since we do not know which keybind is
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-- used to activate the window switcher (the keybind is set by the user in keys.lua)
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if key:match("Super") or key:match("Alt") or
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key:match("Control") then
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window_switcher_hide()
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end
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-- Do nothing
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return
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end
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-- Run function attached to key, if it exists
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if keyboard_keys[key] then keyboard_keys[key]() end
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end)
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gears.timer.delayed_call(function()
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-- Finally make the window switcher wibox visible after
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-- a small delay, to allow the popup size to update
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draw_widget(s, type, client_width, client_height, client_margin,
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background, border_radius, border_width, border_color,
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text_font, font_icons, font_icons_font, mouse_keys)
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s.window_switcher_box.visible = true
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end)
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end)
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end
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return {enable = enable}
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