bling/layout/mstab.lua

258 lines
8.3 KiB
Lua

local awful = require("awful")
local gears = require("gears")
local wibox = require("wibox")
local gcolor = require("gears.color")
local beautiful = require("beautiful")
local mylayout = {}
mylayout.name = "mstab"
local tabbar_ontop = beautiful.mstab_bar_ontop or false
local tabbar_padding = beautiful.mstab_bar_padding or "default"
local border_radius = beautiful.mstab_border_radius
or beautiful.border_radius
or 0
local tabbar_position = beautiful.mstab_tabbar_position
or beautiful.tabbar_position
or "top"
local bar_style = beautiful.mstab_tabbar_style
or beautiful.tabbar_style
or "default"
local bar = require(
tostring(...):match(".*bling") .. ".widget.tabbar." .. bar_style
)
local tabbar_size = bar.size
or beautiful.mstab_bar_height
or beautiful.tabbar_size
or 40
local dont_resize_slaves = beautiful.mstab_dont_resize_slaves or false
-- The top_idx is the idx of the slave clients (excluding all master clients)
-- that should be on top of all other slave clients ("the focused slave")
-- by creating a variable outside of the arrange function, this layout can "remember" that client
-- by creating it as a new property of every tag, this layout can be active on different tags and
-- still have different "focused slave clients"
for idx, tag in ipairs(root.tags()) do
tag.top_idx = 1
end
-- Haven't found a signal that is emitted when a new tag is added. That should work though
-- since you can't use a layout on a tag that you haven't selected previously
tag.connect_signal("property::selected", function(t)
if not t.top_idx then
t.top_idx = 1
end
end)
function update_tabbar(
clients,
t,
top_idx,
area,
master_area_width,
slave_area_width
)
local s = t.screen
-- create the list of clients for the tabbar
local clientlist = bar.layout()
for idx, c in ipairs(clients) do
-- focus with right click, kill with mid click, minimize with left click
local buttons = gears.table.join(
awful.button({}, 1, function()
c:raise()
client.focus = c
end),
awful.button({}, 2, function()
c:kill()
end),
awful.button({}, 3, function()
c.minimized = true
end)
)
local client_box = bar.create(c, (idx == top_idx), buttons)
clientlist:add(client_box)
end
-- if no tabbar exists, create one
if not s.tabbar then
s.tabbar = wibox({
ontop = tabbar_ontop,
shape = function(cr, width, height)
gears.shape.rounded_rect(cr, width, height, border_radius)
end,
bg = bar.bg_normal,
visible = true,
})
-- Change visibility of the tab bar when layout, selected tag or number of clients (visible, master, slave) changes
local function adjust_visiblity(t)
s.tabbar.visible = (#t:clients() - t.master_count > 1)
and (t.layout.name == mylayout.name)
end
tag.connect_signal("property::selected", function(t)
adjust_visiblity(t)
end)
tag.connect_signal("property::layout", function(t, layout)
adjust_visiblity(t)
end)
tag.connect_signal("tagged", function(t, c)
adjust_visiblity(t)
end)
tag.connect_signal("untagged", function(t, c)
adjust_visiblity(t)
end)
tag.connect_signal("property::master_count", function(t)
adjust_visiblity(t)
end)
client.connect_signal("property::minimized", function(c)
local t = c.first_tag
adjust_visiblity(t)
end)
end
-- update the tabbar size and position (to support gap size change on the fly)
if tabbar_position == "top" then
s.tabbar.x = area.x + master_area_width + t.gap
s.tabbar.y = area.y + t.gap
s.tabbar.width = slave_area_width - 2 * t.gap
s.tabbar.height = tabbar_size
elseif tabbar_position == "bottom" then
s.tabbar.x = area.x + master_area_width + t.gap
s.tabbar.y = area.y + area.height - tabbar_size - t.gap
s.tabbar.width = slave_area_width - 2 * t.gap
s.tabbar.height = tabbar_size
elseif tabbar_position == "left" then
s.tabbar.x = area.x + master_area_width + t.gap
s.tabbar.y = area.y + t.gap
s.tabbar.width = tabbar_size
s.tabbar.height = area.height - 2 * t.gap
elseif tabbar_position == "right" then
s.tabbar.x = area.x
+ master_area_width
+ slave_area_width
- tabbar_size
- t.gap
s.tabbar.y = area.y + t.gap
s.tabbar.width = tabbar_size
s.tabbar.height = area.height - 2 * t.gap
end
-- update clientlist
s.tabbar:setup({ layout = wibox.layout.flex.horizontal, clientlist })
end
function mylayout.arrange(p)
local area = p.workarea
local t = p.tag or screen[p.screen].selected_tag
local s = t.screen
local mwfact = t.master_width_factor
local nmaster = math.min(t.master_count, #p.clients)
local nslaves = #p.clients - nmaster
local master_area_width = area.width * mwfact
local slave_area_width = area.width - master_area_width
-- "default" means that it uses standard useless gap size
if tabbar_padding == "default" then
tabbar_padding = 2 * t.gap
end
-- Special case: No masters -> full screen slave width
if nmaster == 0 then
master_area_width = 1
slave_area_width = area.width
end
-- Special case: One or zero slaves -> no tabbar (essentially tile right)
if nslaves <= 1 then
-- since update_tabbar isnt called that way we have to hide it manually
if s.tabbar then
s.tabbar.visible = false
end
-- otherwise just do tile right
awful.layout.suit.tile.right.arrange(p)
return
end
-- Iterate through masters
for idx = 1, nmaster do
local c = p.clients[idx]
local g = {
x = area.x,
y = area.y + (idx - 1) * (area.height / nmaster),
width = master_area_width,
height = area.height / nmaster,
}
p.geometries[c] = g
end
local tabbar_size_change = 0
local tabbar_width_change = 0
local tabbar_y_change = 0
local tabbar_x_change = 0
if tabbar_position == "top" then
tabbar_size_change = tabbar_size + tabbar_padding
tabbar_y_change = tabbar_size + tabbar_padding
elseif tabbar_position == "bottom" then
tabbar_size_change = tabbar_size + tabbar_padding
elseif tabbar_position == "left" then
tabbar_width_change = tabbar_size + tabbar_padding
tabbar_x_change = tabbar_size + tabbar_padding
elseif tabbar_position == "right" then
tabbar_width_change = tabbar_size + tabbar_padding
end
-- Iterate through slaves
-- (also creates a list of all slave clients for update_tabbar)
local slave_clients = {}
for idx = 1, nslaves do
local c = p.clients[idx + nmaster]
slave_clients[#slave_clients + 1] = c
if c == client.focus then
t.top_idx = #slave_clients
end
local g = {
x = area.x + master_area_width + tabbar_x_change,
y = area.y + tabbar_y_change,
width = slave_area_width - tabbar_width_change,
height = area.height - tabbar_size_change,
}
if not dont_resize_slaves and idx ~= t.top_idx then
g = {
x = area.x + master_area_width + slave_area_width / 4,
y = area.y + tabbar_size + area.height / 4,
width = slave_area_width / 2,
height = area.height / 4 - tabbar_size,
}
end
p.geometries[c] = g
end
update_tabbar(
slave_clients,
t,
t.top_idx,
area,
master_area_width,
slave_area_width
)
end
local icon_raw = gears.filesystem.get_configuration_dir()
.. tostring(...):match("^.*bling"):gsub("%.", "/")
.. "/icons/layouts/mstab.png"
local function get_icon()
if icon_raw ~= nil then
return gcolor.recolor_image(icon_raw, beautiful.fg_normal)
else
return nil
end
end
return { layout = mylayout, icon_raw = icon_raw, get_icon = get_icon }