awesome/lib/naughty/layout/box.lua

261 lines
7.6 KiB
Lua

----------------------------------------------------------------------------
--- A notification popup widget.
--
-- By default, the box is composed of many other widgets:
--
--@DOC_wibox_nwidget_default_EXAMPLE@
--
-- @author Emmanuel Lepage Vallee <elv1313@gmail.com>
-- @copyright 2017 Emmanuel Lepage Vallee
-- @popupmod naughty.layout.box
----------------------------------------------------------------------------
local beautiful = require("beautiful")
local gtable = require("gears.table")
local wibox = require("wibox")
local popup = require("awful.popup")
local awcommon = require("awful.widget.common")
local placement = require("awful.placement")
local abutton = require("awful.button")
local default_widget = require("naughty.widget._default")
local box, by_position = {}, {}
-- Init the weak tables for each positions. It is done ahead of time rather
-- than when notifications are added to simplify the code.
for _, pos in ipairs { "top_left" , "top_middle" , "top_right",
"bottom_left", "bottom_middle", "bottom_right" } do
by_position[pos] = setmetatable({},{__mode = "v"})
end
local function get_spacing()
local margin = beautiful.notification_spacing or 2
return {top = margin, bottom = margin}
end
-- Leverage `awful.placement` to create the stacks.
local function update_position(position)
local pref = position:match("top_") and "bottom" or "top"
local align = position:match("_(.*)")
:gsub("left", "front"):gsub("right", "back")
for k, wdg in ipairs(by_position[position]) do
local args = {
geometry = by_position[position][k-1],
preferred_positions = {pref },
preferred_anchors = {align},
margins = get_spacing(),
honor_workarea = true,
}
-- The first entry is aligned to the workarea, then the following to the
-- previous widget.
placement[k==1 and position:gsub("_middle", "") or "next_to"](wdg, args)
wdg.visible = true
end
end
local function finish(self)
self.visible = false
assert(by_position[self.position])
for k, v in ipairs(by_position[self.position]) do
if v == self then
table.remove(by_position[self.position], k)
break
end
end
update_position(self.position)
end
--- The maximum notification width.
-- @beautiful beautiful.notification_max_width
-- @tparam[opt=500] number notification_max_width
--- The maximum notification position.
--
-- Valid values are:
--
-- * top_left
-- * top_middle
-- * top_right
-- * bottom_left
-- * bottom_middle
-- * bottom_right
--
-- @beautiful beautiful.notification_position
-- @tparam[opt="top_right"] string notification_position
--- The widget notification object.
-- @property notification
-- @param naughty.notification
--- The widget template to construct the box content.
--
--@DOC_wibox_nwidget_default_EXAMPLE@
--
-- The default template is (less or more):
--
-- {
-- {
-- {
-- {
-- {
-- naughty.widget.icon,
-- {
-- naughty.widget.title,
-- naughty.widget.message,
-- spacing = 4,
-- layout = wibox.layout.fixed.vertical,
-- },
-- fill_space = true,
-- spacing = 4,
-- layout = wibox.layout.fixed.horizontal,
-- },
-- naughty.list.actions,
-- spacing = 10,
-- layout = wibox.layout.fixed.vertical,
-- },
-- margins = beautiful.notification_margin,
-- widget = wibox.container.margin,
-- },
-- id = "background_role",
-- widget = naughty.container.background,
-- },
-- strategy = "max",
-- width = width(beautiful.notification_max_width
-- or beautiful.xresources.apply_dpi(500)),
-- widget = wibox.container.constraint,
-- }
--
-- @property widget_template
-- @param widget
local function generate_widget(args, n)
local w = wibox.widget.base.make_widget_from_value(
args.widget_template or default_widget
)
-- Call `:set_notification` on all children
awcommon._set_common_property(w, "notification", n or args.notification)
return w
end
local function init(self, notification)
local args = self._private.args
local preset = notification.preset or {}
local position = args.position or notification.position or
beautiful.notification_position or preset.position or "top_right"
if not self.widget then
self.widget = generate_widget(self._private.args, notification)
end
local bg = self._private.widget:get_children_by_id( "background_role" )[1]
-- Make sure the border isn't set twice, favor the widget one since it is
-- shared by the notification list and the notification box.
if bg then
if bg.set_notification then
bg:set_notification(notification)
self.border_width = 0
else
bg:set_bg(notification.bg)
self.border_width = notification.border_width
end
end
-- Add the notification to the active list
assert(by_position[position])
self:_apply_size_now()
table.insert(by_position[position], self)
local function update() update_position(position) end
self:connect_signal("property::geometry", update)
notification:connect_signal("property::margin", update)
notification:connect_signal("destroyed", self._private.destroy_callback)
update_position(position)
end
function box:set_notification(notif)
if self._private.notification == notif then return end
if self._private.notification then
self._private.notification:disconnect_signal("destroyed",
self._private.destroy_callback)
end
init(self, notif)
self._private.notification = notif
end
function box:get_position()
if self._private.notification then
return self._private.notification:get_position()
end
return "top_right"
end
local function new(args)
-- Set the default wibox values
local new_args = {
ontop = true,
visible = false,
bg = args and args.bg or beautiful.notification_bg,
fg = args and args.fg or beautiful.notification_fg,
shape = args and args.shape or beautiful.notification_shape,
border_width = args and args.border_width or beautiful.notification_border_width or 1,
border_color = args and args.border_color or beautiful.notification_border_color,
}
new_args = args and setmetatable(new_args, {__index = args}) or new_args
-- Generate the box before the popup is created to avoid the size changing
new_args.widget = generate_widget(new_args)
local ret = popup(new_args)
ret._private.args = new_args
gtable.crush(ret, box, true)
function ret._private.destroy_callback()
finish(ret)
end
if new_args.notification then
ret:set_notification(new_args.notification)
end
--TODO remove
local function hide()
if ret._private.notification then
ret._private.notification:destroy()
end
end
--FIXME there's another pull request for this
ret:buttons(gtable.join(
abutton({ }, 1, hide),
abutton({ }, 3, hide)
))
return ret
end
--@DOC_wibox_COMMON@
return setmetatable(box, {__call = function(_, args) return new(args) end})