dotfiles/awesome/components/widgets/task-list.lua

225 lines
7.5 KiB
Lua

-- ████████╗ █████╗ ███████╗██╗ ██╗ ██╗ ██╗███████╗████████╗
-- ╚══██╔══╝██╔══██╗██╔════╝██║ ██╔╝ ██║ ██║██╔════╝╚══██╔══╝
-- ██║ ███████║███████╗█████╔╝ ██║ ██║███████╗ ██║
-- ██║ ██╔══██║╚════██║██╔═██╗ ██║ ██║╚════██║ ██║
-- ██║ ██║ ██║███████║██║ ██╗ ███████╗██║███████║ ██║
-- ╚═╝ ╚═╝ ╚═╝╚══════╝╚═╝ ╚═╝ ╚══════╝╚═╝╚══════╝ ╚═╝
-- ===================================================================
-- Initialization
-- ===================================================================
local awful = require('awful')
local wibox = require('wibox')
local gears = require('gears')
local pl = require("utils.powerline")
local theme = require("theme")
local dpi = require('beautiful').xresources.apply_dpi
local capi = {button = button}
local ICON_DIR = gears.filesystem.get_configuration_dir() .. "/images/"
-- define module table
local task_list = {}
-- ===================================================================
-- Functionality
-- ===================================================================
local function create_buttons(buttons, object)
if buttons then
local btns = {}
for _, b in ipairs(buttons) do
-- Create a proxy button object: it will receive the real
-- press and release events, and will propagate them to the
-- button object the user provided, but with the object as
-- argument.
local btn = capi.button {modifiers = b.modifiers, button = b.button}
btn:connect_signal('press',
function()
object.minimized = false
object:raise()
end
)
btns[#btns + 1] = btn
end
return btns
end
end
local function list_update(w, buttons, label, _, objects)
-- update the widgets, creating them if needed
w:reset()
local index = 0
local count = 0
for _ in pairs(objects) do
count = count + 1
end
local static_length = 16 * count
local total_text_length = 0
for _, o in ipairs(objects) do
if o.name then
total_text_length = total_text_length + o.name:len()
end
end
local truncate = (total_text_length + static_length) > 170
for i, o in ipairs(objects) do
index = index + 1
local ib, cb, tb, cbm, bgb, tbm, ibm, tt, l, ll
ib = wibox.widget.imagebox()
tb = wibox.widget.textbox()
cb = wibox.container.margin(wibox.widget.imagebox(ICON_DIR .. "close.svg"), dpi(9), dpi(0), dpi(9), dpi(9))
cb.shape = gears.shape.circle
cbm = wibox.container.margin(cb, dpi(0), dpi(0), dpi(0), dpi(0)) -- 4, 8 ,12 ,12 -- close button
cbm:buttons(gears.table.join(awful.button({}, 1, nil,
function()
o.kill(o)
end
)))
bgb = wibox.container.background()
tbm = wibox.container.margin(tb, dpi(4), dpi(4))
ibm = wibox.container.margin(ib, dpi(5), dpi(5), dpi(5), dpi(5)) -- 12 is default top and bottom margin --app icon
l = wibox.layout.fixed.horizontal()
ll = wibox.layout.fixed.horizontal()
-- All of this is added in a fixed widget
l:fill_space(true)
l:add(ibm)
l:add(tbm)
ll:add(l)
ll:add(cbm)
if (index % 2 == 0) then
local end_color = (count == index or objects[index+1].minimized) and "" or theme.top_panel_powerline
local main_color = o.minimized and "" or theme.bg_normal
bgb:set_widget(pl(ll, main_color, end_color, true))
else
local end_color = (count == index or objects[index+1].minimized) and "" or theme.bg_normal
local main_color = o.minimized and "" or theme.top_panel_powerline
bgb:set_widget(pl(ll, main_color, end_color, true))
end
l:buttons(create_buttons(buttons, o))
-- Tooltip to display whole title, if it was truncated
tt = awful.tooltip({
objects = {tb},
mode = 'outside',
align = 'bottom',
delay_show = 1,
})
local text, _, bg_image, icon, args = label(o, tb)
args = args or {}
-- The text might be invalid, so use pcall.
if text == nil or text == '' then
tbm:set_margins(0)
else
-- truncate when title is too long
local text_only = text:match('>(.*)<')
local max_length = math.floor((155 - static_length) / count)
if (truncate and text_only:len() > max_length) then
text = text:gsub('>(.*)<', '>' .. string.sub(text_only, 1, max_length) .. '...<')
tt:set_text(text)
tt:add_to_object(tb)
else
tt:remove_from_object(tb)
end
if not tb:set_markup_silently(text) then
tb:set_markup('<i>&lt;Invalid text&gt;</i>')
end
end
-- bgb:set_bg(bg)
if type(bg_image) == 'function' then
-- TODO: Why does this pass nil as an argument?
bg_image = bg_image(tb, o, nil, objects, i)
end
-- bgb:set_bgimage(bg_image)
if icon then
ib.image = icon
else
ibm:set_margins(0)
end
w:add(bgb)
end
end
-- ===================================================================
-- Widget Creation
-- ===================================================================
local tasklist_buttons = awful.util.table.join(
awful.button({}, 1,
function(c)
if c == client.focus then
c.minimized = true
else
-- Without this, the following
-- :isvisible() makes no sense
c.minimized = false
if not c:isvisible() and c.first_tag then
c.first_tag:view_only()
end
-- This will also un-minimize
-- the client, if needed
client.focus = c
c:raise()
end
end
),
awful.button({}, 2,
function(c)
c.kill(c)
end
),
awful.button({}, 4,
function()
awful.client.focus.byidx(1)
end
),
awful.button({}, 5,
function()
awful.client.focus.byidx(-1)
end
)
)
local filter = function(c, _)
local tags = c.screen.tags
for _, t in ipairs(tags) do
if t.selected then
local ctags = c:tags()
for _, v in ipairs(ctags) do
if v == t and client.focus and c.screen == client.focus.screen then
return true
end
end
end
end
return false
end
task_list.create = function(s)
return awful.widget.tasklist(
s,
filter,
tasklist_buttons,
{},
list_update,
wibox.layout.fixed.horizontal()
)
end
return task_list