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bling
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Add a window switcher widget (#84)

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Kasper 2021-09-07 23:40:55 +03:00 committed by GitHub
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1
AUTHORS.md
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@ -5,4 +5,5 @@ The following developers have contributed major code to bling:
* [Grumph](https://github.com/Grumph)
* [Bysmutheye](https://github.com/Bysmutheye)
* [HumblePresent](https://github.com/HumblePresent)
* [Kasper24](https://github.com/Kasper24)
* [undefinedDarkness](https://github.com/undefinedDarkness)

1
widget/init.lua
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@ -1,5 +1,6 @@
return {
tag_preview = require(... .. ".tag_preview"),
task_preview = require(... .. ".task_preview"),
window_switcher = require(... .. ".window_switcher"),
tabbed_misc = require(... .. ".tabbed_misc"),
}

357
widget/window_switcher.lua Normal file
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@ -0,0 +1,357 @@
local cairo = require("lgi").cairo
local awful = require("awful")
local gears = require("gears")
local wibox = require("wibox")
local beautiful = require("beautiful")
local helpers = require(tostring(...):match(".*bling") .. ".helpers")
local dpi = beautiful.xresources.apply_dpi
local window_switcher_first_client -- The client that was focused when the window_switcher was activated
local window_switcher_minimized_clients = {} -- The clients that were minimized when the window switcher was activated
local window_switcher_grabber
local get_num_clients = function()
local minimized_clients_in_tag = 0
local matcher = function (c)
return awful.rules.match(c, { minimized = true, skip_taskbar = false, hidden = false, first_tag = awful.screen.focused().selected_tag })
end
for c in awful.client.iterate(matcher) do
minimized_clients_in_tag = minimized_clients_in_tag + 1
end
return minimized_clients_in_tag + #awful.screen.focused().clients
end
local window_switcher_hide = function(window_switcher_box)
-- Add currently focused client to history
if client.focus then
local window_switcher_last_client = client.focus
awful.client.focus.history.add(window_switcher_last_client)
-- Raise client that was focused originally
-- Then raise last focused client
if window_switcher_first_client and window_switcher_first_client.valid then
window_switcher_first_client:raise()
window_switcher_last_client:raise()
end
end
-- Minimize originally minimized clients
local s = awful.screen.focused()
for _, c in pairs(window_switcher_minimized_clients) do
if c and c.valid and not (client.focus and client.focus == c) then
c.minimized = true
end
end
-- Reset helper table
window_switcher_minimized_clients = {}
-- Resume recording focus history
awful.client.focus.history.enable_tracking()
-- Stop and hide window_switcher
awful.keygrabber.stop(window_switcher_grabber)
window_switcher_box.visible = false
end
local function draw_widget(type, background, border_width, border_radius, border_color,
clients_spacing, client_icon_horizontal_spacing, client_width, client_height,
client_margins, thumbnail_margins, thumbnail_scale, name_margins, name_valign,
name_forced_width, name_font, name_normal_color, name_focus_color,
icon_valign, icon_width, mouse_keys)
local tasklist_widget = type == "thumbnail"
and
awful.widget.tasklist {
screen = awful.screen.focused(),
filter = awful.widget.tasklist.filter.currenttags,
buttons = mouse_keys,
style = { font = name_font, fg_normal = name_normal_color, fg_focus = name_focus_color },
layout = { layout = wibox.layout.flex.horizontal, spacing = clients_spacing },
widget_template =
{
widget = wibox.container.background,
id = "bg_role",
forced_width = client_width,
forced_height = client_height,
create_callback = function(self, c, _, __)
local content = gears.surface(c.content)
local cr = cairo.Context(content)
local x, y, w, h = cr:clip_extents()
local img = cairo.ImageSurface.create(cairo.Format.ARGB32, w - x, h - y)
cr = cairo.Context(img)
cr:set_source_surface(content, 0, 0)
cr.operator = cairo.Operator.SOURCE
cr:paint()
self:get_children_by_id("thumbnail")[1].image = gears.surface.load(img)
end,
{
{
{
horizontal_fit_policy = thumbnail_scale == true and "fit" or "auto",
vertical_fit_policy = thumbnail_scale == true and "fit" or "auto",
id = "thumbnail",
widget = wibox.widget.imagebox
},
margins = thumbnail_margins,
widget = wibox.container.margin
},
{
{
{
id = "icon_role",
widget = wibox.widget.imagebox
},
forced_width = icon_width,
valign = icon_valign,
widget = wibox.container.place
},
{
{
forced_width = name_forced_width,
valign = name_valign,
id = "text_role",
widget = wibox.widget.textbox
},
margins = name_margins,
widget = wibox.container.margin
},
spacing = client_icon_horizontal_spacing,
layout = wibox.layout.fixed.horizontal
},
layout = wibox.layout.flex.vertical
}
}
}
or
awful.widget.tasklist {
screen = awful.screen.focused(),
filter = awful.widget.tasklist.filter.currenttags,
buttons = mouse_keys,
style = { font = name_font, fg_normal = name_normal_color, fg_focus = name_focus_color },
layout = { layout = wibox.layout.fixed.vertical, spacing = clients_spacing },
widget_template =
{
widget = wibox.container.background,
id = "bg_role",
forced_width = client_width,
forced_height = client_height,
{
{
{
id = "icon_role",
widget = wibox.widget.imagebox
},
forced_width = icon_width,
valign = icon_valign,
widget = wibox.container.place
},
{
{
forced_width = name_forced_width,
valign = name_valign,
id = "text_role",
widget = wibox.widget.textbox
},
margins = name_margins,
widget = wibox.container.margin
},
spacing = client_icon_horizontal_spacing,
layout = wibox.layout.fixed.horizontal
},
},
}
return wibox.widget
{
{
tasklist_widget,
margins = client_margins,
widget = wibox.container.margin
},
shape_border_width = border_width,
shape_border_color = border_color,
bg = background,
shape = helpers.shape.rrect(border_radius),
widget = wibox.container.background
}
end
local enable = function(opts)
local opts = opts or {}
local type = opts.type or "thumbnail"
local background = beautiful.window_switcher_widget_bg or "#000000"
local border_width = beautiful.window_switcher_widget_border_width or dpi(3)
local border_radius = beautiful.window_switcher_widget_border_radius or dpi(0)
local border_color = beautiful.window_switcher_widget_border_color or "#ffffff"
local clients_spacing = beautiful.window_switcher_clients_spacing or dpi(20)
local client_icon_horizontal_spacing = beautiful.window_switcher_client_icon_horizontal_spacing or dpi(5)
local client_width = beautiful.window_switcher_client_width or dpi(type == "thumbnail" and 150 or 500)
local client_height = beautiful.window_switcher_client_height or dpi(type == "thumbnail" and 250 or 50)
local client_margins = beautiful.window_switcher_client_margins or dpi(10)
local thumbnail_margins = beautiful.window_switcher_thumbnail_margins or dpi(5)
local thumbnail_scale = beautiful.thumbnail_scale or false
local name_margins = beautiful.window_switcher_name_margins or dpi(10)
local name_valign = beautiful.window_switcher_name_valign or "center"
local name_forced_width = beautiful.window_switcher_name_forced_width or dpi(type == "thumbnail" and 200 or 550)
local name_font = beautiful.window_switcher_name_font or beautiful.font
local name_normal_color = beautiful.window_switcher_name_normal_color or "#FFFFFF"
local name_focus_color = beautiful.window_switcher_name_focus_color or "#FF0000"
local icon_valign = beautiful.window_switcher_icon_valign or "center"
local icon_width = beautiful.window_switcher_icon_width or dpi(40)
local hide_window_switcher_key = opts.hide_window_switcher_key or "Escape"
local select_client_key = opts.select_client_key or 1
local minimize_key = opts.minimize_key or "n"
local unminimize_key = opts.unminimize_key or "N"
local kill_client_key = opts.kill_client_key or "q"
local cycle_key = opts.cycle_key or "Tab"
local previous_key = opts.previous_key or "Left"
local next_key = opts.next_key or "Right"
local vim_previous_key = opts.vim_previous_key or "h"
local vim_next_key = opts.vim_next_key or "l"
local scroll_previous_key = opts.scroll_previous_key or 4
local scroll_next_key = opts.scroll_next_key or 5
local window_switcher_box = awful.popup
({
bg = "#00000000",
visible = false,
ontop = true,
placement = awful.placement.centered,
screen = awful.screen.focused(),
widget = wibox.container.background, -- A dummy widget to make awful.popup not scream
widget =
{
{
draw_widget(),
margins = client_margins,
widget = wibox.container.margin
},
shape_border_width = border_width,
shape_border_color = border_color,
bg = background,
shape = helpers.shape.rrect(border_radius),
widget = wibox.container.background
}
})
local mouse_keys = gears.table.join
(
awful.button
{
modifiers = { "Any" },
button = select_client_key,
on_press = function(c)
client.focus = c
end,
},
awful.button
{
modifiers = { "Any" },
button = scroll_previous_key,
on_press = function()
awful.client.focus.byidx(-1)
end,
},
awful.button
{
modifiers = { "Any" },
button = scroll_next_key,
on_press = function()
awful.client.focus.byidx(1)
end,
}
)
local keyboard_keys =
{
[hide_window_switcher_key] = function() window_switcher_hide(window_switcher_box) end,
[minimize_key] = function() if client.focus then client.focus.minimized = true end end,
[unminimize_key] = function() if awful.client.restore() then client.focus = awful.client.restore() end end,
[kill_client_key] = function() if client.focus then client.focus:kill() end end,
[cycle_key] = function() awful.client.focus.byidx(1) end,
[previous_key] = function() awful.client.focus.byidx(1) end,
[next_key] = function() awful.client.focus.byidx(-1) end,
[vim_previous_key] = function() awful.client.focus.byidx(1) end,
[vim_next_key] = function() awful.client.focus.byidx(-1) end,
}
window_switcher_box:connect_signal("property::width", function()
if window_switcher_box.visible and get_num_clients() == 0 then
window_switcher_hide(window_switcher_box)
end
end)
window_switcher_box:connect_signal("property::height", function()
if window_switcher_box.visible and get_num_clients() == 0 then
window_switcher_hide(window_switcher_box)
end
end)
awesome.connect_signal("bling::window_switcher::turn_on", function()
local number_of_clients = get_num_clients()
if number_of_clients == 0 then
return
end
-- Store client that is focused in a variable
window_switcher_first_client = client.focus
-- Stop recording focus history
awful.client.focus.history.disable_tracking()
-- Go to previously focused client (in the tag)
awful.client.focus.history.previous()
-- Track minimized clients
-- Unminimize them
-- Lower them so that they are always below other
-- originally unminimized windows
local clients = awful.screen.focused().selected_tag:clients()
for _, c in pairs(clients) do
if c.minimized then
table.insert(window_switcher_minimized_clients, c)
c.minimized = false
c:lower()
end
end
-- Start the keygrabber
window_switcher_grabber = awful.keygrabber.run(function(_, key, event)
if event == "release" then
-- Hide if the modifier was released
-- We try to match Super or Alt or Control since we do not know which keybind is
-- used to activate the window switcher (the keybind is set by the user in keys.lua)
if key:match("Super") or key:match("Alt") or key:match("Control") then
window_switcher_hide(window_switcher_box)
end
-- Do nothing
return
end
-- Run function attached to key, if it exists
if keyboard_keys[key] then
keyboard_keys[key]()
end
end)
window_switcher_box.widget = draw_widget(type, background, border_width,
border_radius, border_color, clients_spacing, client_icon_horizontal_spacing,
client_width, client_height, client_margins, thumbnail_margins, thumbnail_scale,
name_margins, name_valign, name_forced_width, name_font, name_normal_color,
name_focus_color, icon_valign, icon_width, mouse_keys)
window_switcher_box.visible = true
end)
end
return {enable = enable}