637 lines
23 KiB
Lua
637 lines
23 KiB
Lua
----------------------------------------------------------------------------
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-- @author koniu <gkusnierz@gmail.com>
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-- @copyright 2008 koniu
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-- @release @AWESOME_VERSION@
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----------------------------------------------------------------------------
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-- Package environment
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local pairs = pairs
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local table = table
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local type = type
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local string = string
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local pcall = pcall
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local capi = { screen = screen,
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awesome = awesome,
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dbus = dbus,
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timer = timer,
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awesome = awesome }
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local button = require("awful.button")
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local util = require("awful.util")
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local bt = require("beautiful")
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local wibox = require("wibox")
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local surface = require("gears.surface")
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local cairo = require("lgi").cairo
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--- Notification library
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local naughty = {}
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--- Naughty configuration - a table containing common popup settings.
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-- @name config
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-- @field padding Space between popups and edge of the workarea. Default: 4
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-- @field spacing Spacing between popups. Default: 1
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-- @field icon_dirs List of directories that will be checked by getIcon()
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-- Default: { "/usr/share/pixmaps/", }
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-- @field icon_formats List of formats that will be checked by getIcon()
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-- Default: { "png", "gif" }
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-- @field notify_callback Callback used to modify or reject notifications.
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-- Default: nil
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-- Example:
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-- naughty.config.notify_callback = function(args)
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-- args.text = 'prefix: ' .. args.text
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-- return args
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-- end
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-- @class table
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naughty.config = {}
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naughty.config.padding = 4
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naughty.config.spacing = 1
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naughty.config.icon_dirs = { "/usr/share/pixmaps/", }
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naughty.config.icon_formats = { "png", "gif" }
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naughty.config.notify_callback = nil
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--- Notification Presets - a table containing presets for different purposes
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-- Preset is a table of any parameters available to notify(), overriding default
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-- values (@see defaults)
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-- You have to pass a reference of a preset in your notify() call to use the preset
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-- The presets "low", "normal" and "critical" are used for notifications over DBUS
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-- @name config.presets
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-- @field low The preset for notifications with low urgency level
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-- @field normal The default preset for every notification without a preset that will also be used for normal urgency level
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-- @field critical The preset for notifications with a critical urgency level
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-- @class table
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naughty.config.presets = {
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normal = {},
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low = {
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timeout = 5
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},
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critical = {
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bg = "#ff0000",
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fg = "#ffffff",
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timeout = 0,
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}
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}
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--- Default values for the params to notify().
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-- These can optionally be overridden by specifying a preset
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-- @see config.presets
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-- @see notify
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naughty.config.defaults = {
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timeout = 5,
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text = "",
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screen = 1,
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ontop = true,
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margin = "5",
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border_width = "1",
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position = "top_right"
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}
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-- DBUS Notification constants
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local urgency = {
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low = "\0",
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normal = "\1",
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critical = "\2"
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}
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--- DBUS notification to preset mapping
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-- @name config.mapping
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-- The first element is an object containing the filter
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-- If the rules in the filter matches the associated preset will be applied
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-- The rules object can contain: urgency, category, appname
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-- The second element is the preset
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naughty.config.mapping = {
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{{urgency = urgency.low}, naughty.config.presets.low},
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{{urgency = urgency.normal}, naughty.config.presets.normal},
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{{urgency = urgency.critical}, naughty.config.presets.critical}
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}
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-- Counter for the notifications
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-- Required for later access via DBUS
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local counter = 1
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-- True if notifying is suspended
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local suspended = false
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--- Index of notifications. See config table for valid 'position' values.
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-- Each element is a table consisting of:
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-- @field box Wibox object containing the popup
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-- @field height Popup height
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-- @field width Popup width
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-- @field die Function to be executed on timeout
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-- @field id Unique notification id based on a counter
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-- @name notifications[screen][position]
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-- @class table
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local notifications = { suspended = { } }
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for s = 1, capi.screen.count() do
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notifications[s] = {
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top_left = {},
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top_right = {},
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bottom_left = {},
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bottom_right = {},
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}
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end
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--- Suspend notifications
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function naughty.suspend()
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suspended = true
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end
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--- Resume notifications
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function naughty.resume()
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suspended = false
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for i, v in pairs(notifications.suspended) do
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v.box.visible = true
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if v.timer then v.timer:start() end
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end
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notifications.suspended = { }
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end
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--- Toggle notification state
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function naughty.toggle()
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if suspended then
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naughty.resume()
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else
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naughty.suspend()
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end
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end
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-- Evaluate desired position of the notification by index - internal
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-- @param idx Index of the notification
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-- @param position top_right | top_left | bottom_right | bottom_left
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-- @param height Popup height
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-- @param width Popup width (optional)
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-- @return Absolute position and index in { x = X, y = Y, idx = I } table
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local function get_offset(screen, position, idx, width, height)
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local ws = capi.screen[screen].workarea
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local v = {}
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local idx = idx or #notifications[screen][position] + 1
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local width = width or notifications[screen][position][idx].width
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-- calculate x
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if position:match("left") then
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v.x = ws.x + naughty.config.padding
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else
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v.x = ws.x + ws.width - (width + naughty.config.padding)
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end
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-- calculate existing popups' height
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local existing = 0
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for i = 1, idx-1, 1 do
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existing = existing + notifications[screen][position][i].height + naughty.config.spacing
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end
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-- calculate y
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if position:match("top") then
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v.y = ws.y + naughty.config.padding + existing
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else
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v.y = ws.y + ws.height - (naughty.config.padding + height + existing)
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end
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-- if positioned outside workarea, destroy oldest popup and recalculate
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if v.y + height > ws.y + ws.height or v.y < ws.y then
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idx = idx - 1
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naughty.destroy(notifications[screen][position][1])
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v = get_offset(screen, position, idx, width, height)
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end
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if not v.idx then v.idx = idx end
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return v
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end
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-- Re-arrange notifications according to their position and index - internal
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-- @return None
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local function arrange(screen)
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for p,pos in pairs(notifications[screen]) do
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for i,notification in pairs(notifications[screen][p]) do
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local offset = get_offset(screen, p, i, notification.width, notification.height)
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notification.box:geometry({ x = offset.x, y = offset.y })
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notification.idx = offset.idx
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end
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end
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end
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--- Destroy notification by notification object
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-- @param notification Notification object to be destroyed
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-- @return True if the popup was successfully destroyed, nil otherwise
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function naughty.destroy(notification)
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if notification and notification.box.visible then
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if suspended then
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for k, v in pairs(notifications.suspended) do
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if v.box == notification.box then
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table.remove(notifications.suspended, k)
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break
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end
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end
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end
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local scr = notification.screen
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table.remove(notifications[scr][notification.position], notification.idx)
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if notification.timer then
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notification.timer:stop()
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end
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notification.box.visible = false
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arrange(scr)
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return true
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end
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end
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-- Get notification by ID
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-- @param id ID of the notification
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-- @return notification object if it was found, nil otherwise
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local function getById(id)
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-- iterate the notifications to get the notfications with the correct ID
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for s = 1, capi.screen.count() do
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for p,pos in pairs(notifications[s]) do
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for i,notification in pairs(notifications[s][p]) do
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if notification.id == id then
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return notification
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end
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end
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end
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end
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end
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--- Create notification. args is a dictionary of (optional) arguments.
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-- @param text Text of the notification. Default: ''
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-- @param title Title of the notification. Default: nil
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-- @param timeout Time in seconds after which popup expires.
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-- Set 0 for no timeout. Default: 5
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-- @param hover_timeout Delay in seconds after which hovered popup disappears.
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-- Default: nil
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-- @param screen Target screen for the notification. Default: 1
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-- @param position Corner of the workarea displaying the popups.
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-- Values: "top_right" (default), "top_left", "bottom_left", "bottom_right".
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-- @param ontop Boolean forcing popups to display on top. Default: true
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-- @param height Popup height. Default: nil (auto)
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-- @param width Popup width. Default: nil (auto)
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-- @param font Notification font. Default: beautiful.font or awesome.font
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-- @param icon Path to icon. Default: nil
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-- @param icon_size Desired icon size in px. Default: nil
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-- @param fg Foreground color. Default: beautiful.fg_focus or '#ffffff'
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-- @param bg Background color. Default: beautiful.bg_focus or '#535d6c'
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-- @param border_width Border width. Default: 1
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-- @param border_color Border color.
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-- Default: beautiful.border_focus or '#535d6c'
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-- @param run Function to run on left click. Default: nil
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-- @param preset Table with any of the above parameters. Note: Any parameters
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-- specified directly in args will override ones defined in the preset.
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-- @param replaces_id Replace the notification with the given ID
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-- @param callback function that will be called with all arguments
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-- the notification will only be displayed if the function returns true
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-- note: this function is only relevant to notifications sent via dbus
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-- @usage naughty.notify({ title = "Achtung!", text = "You're idling", timeout = 0 })
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-- @return The notification object
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function naughty.notify(args)
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if naughty.config.notify_callback then
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args = naughty.config.notify_callback(args)
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if not args then return end
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end
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-- gather variables together
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local preset = util.table.join(naughty.config.defaults or {},
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args.preset or naughty.config.presets.normal or {})
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local timeout = args.timeout or preset.timeout
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local icon = args.icon or preset.icon
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local icon_size = args.icon_size or preset.icon_size
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local text = args.text or preset.text
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local title = args.title or preset.title
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local screen = args.screen or preset.screen
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local ontop = args.ontop or preset.ontop
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local width = args.width or preset.width
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local height = args.height or preset.height
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local hover_timeout = args.hover_timeout or preset.hover_timeout
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local opacity = args.opacity or preset.opacity
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local margin = args.margin or preset.margin
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local border_width = args.border_width or preset.border_width
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local position = args.position or preset.position
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-- beautiful
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local beautiful = bt.get()
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local font = args.font or preset.font or beautiful.font or capi.awesome.font
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local fg = args.fg or preset.fg or beautiful.fg_normal or '#ffffff'
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local bg = args.bg or preset.bg or beautiful.bg_normal or '#535d6c'
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local border_color = args.border_color or preset.border_color or beautiful.bg_focus or '#535d6c'
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local notification = { screen = screen }
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-- replace notification if needed
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if args.replaces_id then
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local obj = getById(args.replaces_id)
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if obj then
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-- destroy this and ...
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naughty.destroy(obj)
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end
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-- ... may use its ID
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if args.replaces_id <= counter then
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notification.id = args.replaces_id
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else
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counter = counter + 1
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notification.id = counter
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end
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else
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-- get a brand new ID
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counter = counter + 1
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notification.id = counter
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end
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notification.position = position
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if title then title = title .. "\n" else title = "" end
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-- hook destroy
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local die = function () naughty.destroy(notification) end
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if timeout > 0 then
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local timer_die = capi.timer { timeout = timeout }
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timer_die:connect_signal("timeout", die)
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if not suspended then
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timer_die:start()
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end
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notification.timer = timer_die
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end
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notification.die = die
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local run = function ()
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if args.run then
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args.run(notification)
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else
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die()
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end
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end
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local hover_destroy = function ()
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if hover_timeout == 0 then
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die()
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else
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if notification.timer then notification.timer:stop() end
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notification.timer = capi.timer { timeout = hover_timeout }
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notification.timer:connect_signal("timeout", die)
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notification.timer:start()
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end
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end
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-- create textbox
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local textbox = wibox.widget.textbox()
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local marginbox = wibox.layout.margin()
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marginbox:set_margins(margin)
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marginbox:set_widget(textbox)
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textbox:set_valign("middle")
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textbox:set_font(font)
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local function setMarkup(pattern, replacements)
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textbox:set_markup(string.format('<b>%s</b>%s', title:gsub(pattern, replacements), text:gsub(pattern, replacements)))
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end
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local function setText()
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textbox:set_text(string.format('%s %s', title, text))
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end
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-- First try to set the text while only interpreting <br>.
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-- (Setting a textbox' .text to an invalid pattern throws a lua error)
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if not pcall(setMarkup, "<br.->", "\n") then
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-- That failed, escape everything which might cause an error from pango
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if not pcall(setMarkup, "[<>&]", { ['<'] = "<", ['>'] = ">", ['&'] = "&" }) then
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-- Ok, just ignore all pango markup. If this fails, we got some invalid utf8
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if not pcall(setText) then
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textbox:set_markup("<i><Invalid markup or UTF8, cannot display message></i>")
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end
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end
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end
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-- create iconbox
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local iconbox = nil
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local iconmargin = nil
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local icon_w, icon_h = 0, 0
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if icon then
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-- try to guess icon if the provided one is non-existent/readable
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if type(icon) == "string" and not util.file_readable(icon) then
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icon = util.geticonpath(icon, naughty.config.icon_formats, naughty.config.icon_dirs, icon_size)
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end
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-- if we have an icon, use it
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if icon then
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iconbox = wibox.widget.imagebox()
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iconmargin = wibox.layout.margin(iconbox, margin, margin, margin, margin)
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local img = surface.load(icon)
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if icon_size then
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local scaled = cairo.ImageSurface(cairo.Format.ARGB32, icon_size, icon_size)
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local cr = cairo.Context(scaled)
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cr:scale(icon_size / img:get_height(), icon_size / img:get_width())
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cr:set_source_surface(img, 0, 0)
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cr:paint()
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img = scaled
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end
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iconbox:set_resize(false)
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iconbox:set_image(img)
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icon_w = img:get_width()
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icon_h = img:get_height()
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end
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end
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-- create container wibox
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notification.box = wibox({ fg = fg,
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bg = bg,
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border_color = border_color,
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border_width = border_width,
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type = "notification" })
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if hover_timeout then notification.box:connect_signal("mouse::enter", hover_destroy) end
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-- calculate the height
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if not height then
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local w, h = textbox:fit(-1, -1)
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if iconbox and icon_h + 2 * margin > h + 2 * margin then
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height = icon_h + 2 * margin
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else
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height = h + 2 * margin
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end
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end
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-- calculate the width
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if not width then
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local w, h = textbox:fit(-1, -1)
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width = w + (iconbox and icon_w + 2 * margin or 0) + 2 * margin
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end
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-- crop to workarea size if too big
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local workarea = capi.screen[screen].workarea
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if width > workarea.width - 2 * (border_width or 0) - 2 * (naughty.config.padding or 0) then
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width = workarea.width - 2 * (border_width or 0) - 2 * (naughty.config.padding or 0)
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end
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if height > workarea.height - 2 * (border_width or 0) - 2 * (naughty.config.padding or 0) then
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height = workarea.height - 2 * (border_width or 0) - 2 * (naughty.config.padding or 0)
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end
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-- set size in notification object
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notification.height = height + 2 * (border_width or 0)
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notification.width = width + 2 * (border_width or 0)
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-- position the wibox
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local offset = get_offset(screen, notification.position, nil, notification.width, notification.height)
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notification.box.ontop = ontop
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notification.box:geometry({ width = width,
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height = height,
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x = offset.x,
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y = offset.y })
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notification.box.opacity = opacity
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notification.box.visible = true
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notification.idx = offset.idx
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-- populate widgets
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local layout = wibox.layout.fixed.horizontal()
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if iconmargin then
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layout:add(iconmargin)
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end
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layout:add(marginbox)
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notification.box:set_widget(layout)
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-- Setup the mouse events
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layout:buttons(util.table.join(button({ }, 1, run), button({ }, 3, die)))
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-- insert the notification to the table
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table.insert(notifications[screen][notification.position], notification)
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if suspended then
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notification.box.visible = false
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table.insert(notifications.suspended, notification)
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end
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-- return the notification
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return notification
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end
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-- DBUS/Notification support
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-- Notify
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if capi.dbus then
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capi.dbus.connect_signal("org.freedesktop.Notifications", function (data, appname, replaces_id, icon, title, text, actions, hints, expire)
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local args = { }
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if data.member == "Notify" then
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if text ~= "" then
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args.text = text
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if title ~= "" then
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args.title = title
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end
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else
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if title ~= "" then
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args.text = title
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else
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return
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end
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end
|
|
for i, obj in pairs(naughty.config.mapping) do
|
|
local filter, preset, s = obj[1], obj[2], 0
|
|
if (not filter.urgency or filter.urgency == hints.urgency) and
|
|
(not filter.category or filter.category == hints.category) and
|
|
(not filter.appname or filter.appname == appname) then
|
|
args.preset = util.table.join(args.preset, preset)
|
|
end
|
|
end
|
|
local preset = args.preset or naughty.config.defaults
|
|
if not preset.callback or (type(preset.callback) == "function" and
|
|
preset.callback(data, appname, replaces_id, icon, title, text, actions, hints, expire)) then
|
|
if icon ~= "" then
|
|
args.icon = icon
|
|
elseif hints.icon_data or hints.image_data then
|
|
if hints.icon_data == nil then hints.icon_data = hints.image_data end
|
|
-- icon_data is an array:
|
|
-- 1 -> width, 2 -> height, 3 -> rowstride, 4 -> has alpha
|
|
-- 5 -> bits per sample, 6 -> channels, 7 -> data
|
|
|
|
local imgdata = ""
|
|
-- If has alpha (ARGB32)
|
|
if hints.icon_data[6] == 4 then
|
|
for i = 1, #hints.icon_data[7], 4 do
|
|
imgdata = imgdata .. hints.icon_data[7]:sub(i, i + 2):reverse()
|
|
imgdata = imgdata .. hints.icon_data[7]:sub(i + 3, i + 3)
|
|
end
|
|
-- If has not alpha (RGB24)
|
|
elseif hints.icon_data[6] == 3 then
|
|
for i = 1, #hints.icon_data[7], 3 do
|
|
imgdata = imgdata .. hints.icon_data[7]:sub(i , i + 2):reverse()
|
|
imgdata = imgdata .. string.format("%c", 255) -- alpha is 255
|
|
end
|
|
end
|
|
if imgdata then
|
|
args.icon = cairo.ImageSurface.create_for_data(imgdata,
|
|
cairo.Format.ARGB32, hints.icon_data[1], hints.icon_data[2], hints.icon_data[1] * 4)
|
|
end
|
|
end
|
|
if replaces_id and replaces_id ~= "" and replaces_id ~= 0 then
|
|
args.replaces_id = replaces_id
|
|
end
|
|
if expire and expire > -1 then
|
|
args.timeout = expire / 1000
|
|
end
|
|
local id = naughty.notify(args).id
|
|
return "u", id
|
|
end
|
|
return "u", "0"
|
|
elseif data.member == "CloseNotification" then
|
|
local obj = getById(appname)
|
|
if obj then
|
|
naughty.destroy(obj)
|
|
end
|
|
elseif data.member == "GetServerInfo" or data.member == "GetServerInformation" then
|
|
-- name of notification app, name of vender, version
|
|
return "s", "naughty", "s", "awesome", "s", capi.awesome.version:match("%d.%d"), "s", "1.0"
|
|
elseif data.member == "GetCapabilities" then
|
|
-- We actually do display the body of the message, we support <b>, <i>
|
|
-- and <u> in the body and we handle static (non-animated) icons.
|
|
return "as", { "s", "body", "s", "body-markup", "s", "icon-static" }
|
|
end
|
|
end)
|
|
|
|
capi.dbus.connect_signal("org.freedesktop.DBus.Introspectable",
|
|
function (data, text)
|
|
if data.member == "Introspect" then
|
|
local xml = [=[<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object
|
|
Introspection 1.0//EN"
|
|
"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
|
|
<node>
|
|
<interface name="org.freedesktop.DBus.Introspectable">
|
|
<method name="Introspect">
|
|
<arg name="data" direction="out" type="s"/>
|
|
</method>
|
|
</interface>
|
|
<interface name="org.freedesktop.Notifications">
|
|
<method name="GetCapabilities">
|
|
<arg name="caps" type="as" direction="out"/>
|
|
</method>
|
|
<method name="CloseNotification">
|
|
<arg name="id" type="u" direction="in"/>
|
|
</method>
|
|
<method name="Notify">
|
|
<arg name="app_name" type="s" direction="in"/>
|
|
<arg name="id" type="u" direction="in"/>
|
|
<arg name="icon" type="s" direction="in"/>
|
|
<arg name="summary" type="s" direction="in"/>
|
|
<arg name="body" type="s" direction="in"/>
|
|
<arg name="actions" type="as" direction="in"/>
|
|
<arg name="hints" type="a{sv}" direction="in"/>
|
|
<arg name="timeout" type="i" direction="in"/>
|
|
<arg name="return_id" type="u" direction="out"/>
|
|
</method>
|
|
<method name="GetServerInformation">
|
|
<arg name="return_name" type="s" direction="out"/>
|
|
<arg name="return_vendor" type="s" direction="out"/>
|
|
<arg name="return_version" type="s" direction="out"/>
|
|
<arg name="return_spec_version" type="s" direction="out"/>
|
|
</method>
|
|
<method name="GetServerInfo">
|
|
<arg name="return_name" type="s" direction="out"/>
|
|
<arg name="return_vendor" type="s" direction="out"/>
|
|
<arg name="return_version" type="s" direction="out"/>
|
|
</method>
|
|
</interface>
|
|
</node>]=]
|
|
return "s", xml
|
|
end
|
|
end)
|
|
|
|
-- listen for dbus notification requests
|
|
capi.dbus.request_name("session", "org.freedesktop.Notifications")
|
|
end
|
|
|
|
return naughty
|
|
|
|
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
|