340 lines
13 KiB
Lua
340 lines
13 KiB
Lua
---------------------------------------------------------------------------
|
|
-- High-level declarative function for setting your wallpaper.
|
|
--
|
|
--
|
|
-- An easy way to setup a complex wallpaper with slideshow, random, schedule, extensibility.
|
|
--
|
|
-- @usage
|
|
-- local wallpaper = require("wallpaper")
|
|
-- -- A silly example
|
|
-- wallpaper.setup { -- I want a wallpaper
|
|
-- change_timer = 500, -- changing every 5 minutes
|
|
-- set_function = wallpaper.setters.random, -- in a random way
|
|
-- wallpaper = {"#abcdef",
|
|
-- "~/Pictures",
|
|
-- wallpaper.setters.awesome}, -- from this list (a color, a directory with pictures and the Awesome wallpaper)
|
|
-- recursive = false, -- do not read subfolders of "~/Pictures"
|
|
-- position = "centered", -- center it on the screen (for pictures)
|
|
-- scale = 2, -- 2 time bigger (for pictures)
|
|
-- }
|
|
--
|
|
-- @author Grumph
|
|
-- @copyright 2021 Grumph
|
|
--
|
|
---------------------------------------------------------------------------
|
|
|
|
local awful = require("awful")
|
|
local beautiful = require("beautiful")
|
|
local gears = require("gears")
|
|
local helpers = require(tostring(...):match(".*bling") .. ".helpers")
|
|
|
|
local setters = {}
|
|
|
|
--- Apply a wallpaper.
|
|
--
|
|
-- This function is a helper that will apply a wallpaper_object,
|
|
-- either using gears.wallpaper.set or gears.wallpaper.* higher level functions when applicable.
|
|
-- @param wallpaper_object A wallpaper object, either
|
|
-- a `pattern` (see `gears.wallpaper.set`)
|
|
-- a `surf` (see `gears.wallpaper.centered`)
|
|
-- a function that actually sets the wallpaper.
|
|
-- @tparam table args The argument table containing any of the arguments below.
|
|
-- @int[opt=nil] args.screen The screen to use (as used in `gears.wallpaper` functions)
|
|
-- @string[opt=nil or "centered"] args.position The `gears.wallpaper` position function to use.
|
|
-- Must be set when wallpaper is a file.
|
|
-- It can be `"centered"`, `"fit"`, `"tiled"` or `"maximized"`.
|
|
-- @string[opt=beautiful.bg_normal or "black"] args.background See `gears.wallpaper`.
|
|
-- @bool[opt=false] args.ignore_aspect See `gears.wallpaper`.
|
|
-- @tparam[opt={x=0,y=0}] table args.offset See `gears.wallpaper`.
|
|
-- @int[opt=1] args.scale See `gears.wallpaper`.
|
|
function apply(wallpaper_object, args)
|
|
args.background = args.background or beautiful.bg_normal or "black"
|
|
args.ignore_aspect = args.ignore_aspect or false -- false = keep aspect ratio
|
|
args.offset = args.offset or { x = 0, y = 0 }
|
|
args.scale = args.scale or 1
|
|
local positions = {
|
|
["centered"] = function()
|
|
gears.wallpaper.centered(
|
|
wallpaper_object,
|
|
args.screen,
|
|
args.background,
|
|
args.scale
|
|
)
|
|
end,
|
|
["tiled"] = function()
|
|
gears.wallpaper.tiled(wallpaper_object, args.screen, args.offset)
|
|
end,
|
|
["maximized"] = function()
|
|
gears.wallpaper.maximized(
|
|
wallpaper_object,
|
|
args.screen,
|
|
args.ignore_aspect,
|
|
args.offset
|
|
)
|
|
end,
|
|
["fit"] = function()
|
|
gears.wallpaper.fit(wallpaper_object, args.screen, args.background)
|
|
end,
|
|
}
|
|
if
|
|
type(wallpaper_object) == "string"
|
|
and gears.filesystem.file_readable(wallpaper_object)
|
|
then
|
|
-- path of an image file, we use a position function
|
|
local p = args.position or "centered"
|
|
positions[p]()
|
|
elseif type(wallpaper_object) == "function" then
|
|
-- function
|
|
wallpaper_object(args)
|
|
elseif
|
|
(not gears.color.ensure_pango_color(wallpaper_object, nil))
|
|
and args.position
|
|
then
|
|
-- if the user sets a position function, wallpaper_object should be a cairo surface
|
|
positions[args.position]()
|
|
else
|
|
gears.wallpaper.set(wallpaper_object)
|
|
end
|
|
end
|
|
|
|
--- Converts `args.wallpaper` to a list of `wallpaper_objects` readable by `apply` function).
|
|
--
|
|
-- @tparam table args The argument table containing the argument below.
|
|
-- @param[opt=`beautiful.wallpaper_path` or `"black"`] args.wallpaper A wallpaper object.
|
|
-- It can be a color or a cairo pattern (what `gears.wallpaper.set` understands),
|
|
-- a cairo suface (set with gears.wallpaper.set if `args.position` is nil, or with
|
|
-- `gears.wallpaper` position functions, see `args.position`),
|
|
-- a function similar to args.set_function that will effectively set a wallpaper (usually
|
|
-- with `gears.wallpaper` functions),
|
|
-- a path to a file,
|
|
-- path to a directory containing images,
|
|
-- or a list with any of the previous choices.
|
|
-- @tparam[opt=`{"jpg", "jpeg", "png", "bmp"}`] table args.image_formats A list of
|
|
-- file extensions to filter when `args.wallpaper` is a directory.
|
|
-- @bool[opt=true] args.recursive Either to recurse or not when `args.wallpaper` is a directory.
|
|
-- @treturn table A list of `wallpaper_objects` (what `apply` can read).
|
|
-- @see apply
|
|
function prepare_list(args)
|
|
args.image_formats = args.image_formats or { "jpg", "jpeg", "png", "bmp" }
|
|
args.recursive = args.recursive or true
|
|
|
|
local wallpapers = (args.wallpaper or beautiful.wallpaper_path or "black")
|
|
local res = {}
|
|
if type(wallpapers) ~= "table" then
|
|
wallpapers = { wallpapers }
|
|
end
|
|
for _, w in ipairs(wallpapers) do
|
|
-- w is either:
|
|
-- - a directory path (string)
|
|
-- - an image path or a color (string)
|
|
-- - a cairo surface or a cairo pattern
|
|
-- - a function for setting the wallpaper
|
|
if type(w) == "string" and gears.filesystem.dir_readable(w) then
|
|
local file_list = helpers.filesystem.list_directory_files(
|
|
w,
|
|
args.image_formats,
|
|
args.recursive
|
|
)
|
|
for _, f in ipairs(file_list) do
|
|
res[#res + 1] = w .. "/" .. f
|
|
end
|
|
else
|
|
res[#res + 1] = w
|
|
end
|
|
end
|
|
return res
|
|
end
|
|
|
|
local simple_index = 0
|
|
--- Set the next wallpaper in a list.
|
|
--
|
|
-- @tparam table args See `prepare_list` and `apply` arguments
|
|
-- @see apply
|
|
-- @see prepare_list
|
|
function setters.simple(args)
|
|
local wallpapers = prepare_list(args)
|
|
simple_index = (simple_index % #wallpapers) + 1
|
|
apply(wallpapers[simple_index], args)
|
|
end
|
|
|
|
--- Set a random wallpaper from a list.
|
|
--
|
|
-- @tparam table args See `prepare_list` and `apply` arguments
|
|
-- @see apply
|
|
-- @see prepare_list
|
|
function setters.random(args)
|
|
local wallpapers = prepare_list(args)
|
|
apply(wallpapers[math.random(#wallpapers)], args)
|
|
end
|
|
|
|
local simple_schedule_object = nil
|
|
--- A schedule setter.
|
|
--
|
|
-- This simple schedule setter was freely inspired by [dynamic-wallpaper](https://github.com/manilarome/awesome-glorious-widgets/blob/master/dynamic-wallpaper/init.lua).
|
|
-- @tparam table args The argument table containing any of the arguments below.
|
|
-- @tparam table args.wallpaper The schedule table, with the form
|
|
-- {
|
|
-- ["HH:MM:SS"] = wallpaper,
|
|
-- ["HH:MM:SS"] = wallpaper2,
|
|
-- }
|
|
-- The wallpapers definition can be anything the `schedule_set_function` can read
|
|
-- (what you would place in `args.wallpaper` for this function),
|
|
-- @tparam[opt=`setters.simple`] function args.wallpaper_set_function The set_function used by default
|
|
function setters.simple_schedule(args)
|
|
local function update_wallpaper()
|
|
local fake_args = gears.table.join(args, {
|
|
wallpaper = args.wallpaper[simple_schedule_object.closest_lower_time],
|
|
})
|
|
simple_schedule_object.schedule_set_function(fake_args)
|
|
end
|
|
if not simple_schedule_object then
|
|
simple_schedule_object = {}
|
|
-- initialize the schedule object, so we don't do it for every call
|
|
simple_schedule_object.schedule_set_function = args.schedule_set_function
|
|
or setters.simple
|
|
-- we get the sorted time keys
|
|
simple_schedule_object.times = {}
|
|
for k in pairs(args.wallpaper) do
|
|
table.insert(simple_schedule_object.times, k)
|
|
end
|
|
table.sort(simple_schedule_object.times)
|
|
-- now we get the closest time which is below current time (the current applicable period)
|
|
local function update_timer()
|
|
local current_time = os.date("%H:%M:%S")
|
|
local next_time = simple_schedule_object.times[1]
|
|
simple_schedule_object.closest_lower_time =
|
|
simple_schedule_object.times[#simple_schedule_object.times]
|
|
for _, k in ipairs(simple_schedule_object.times) do
|
|
if k > current_time then
|
|
next_time = k
|
|
break
|
|
end
|
|
simple_schedule_object.closest_lower_time = k
|
|
end
|
|
simple_schedule_object.timer.timeout = helpers.time.time_diff(
|
|
next_time,
|
|
current_time
|
|
)
|
|
if simple_schedule_object.timer.timeout < 0 then
|
|
-- the next_time is the day after, so we add 24 hours to the timer
|
|
simple_schedule_object.timer.timeout = simple_schedule_object.timer.timeout
|
|
+ 86400
|
|
end
|
|
simple_schedule_object.timer:again()
|
|
update_wallpaper()
|
|
end
|
|
simple_schedule_object.timer = gears.timer({
|
|
callback = update_timer,
|
|
})
|
|
update_timer()
|
|
else
|
|
-- if called again (usually when the change_timer is set), we just change the wallpaper depending on current parameters
|
|
update_wallpaper()
|
|
end
|
|
end
|
|
|
|
--- Set the AWESOME wallpaper.
|
|
--
|
|
-- @tparam table args The argument table containing the argument below.
|
|
-- @param[opt=`beautiful.bg_normal`] args.colors.bg The bg color.
|
|
-- If the default is used, the color is darkened if `beautiful.bg_normal` is light
|
|
-- or lightned if `beautiful.bg_normal` is dark.
|
|
-- @param[opt=`beautiful.fg_normal`] args.colors.fg The fg color.
|
|
-- @param[opt=`beautiful.fg_focus`] args.colors.alt_fg The alt_fg color.
|
|
--
|
|
-- see beautiful.theme_assets.wallpaper
|
|
function setters.awesome_wallpaper(args)
|
|
local colors = {
|
|
bg = beautiful.bg_normal,
|
|
fg = beautiful.fg_normal,
|
|
alt_fg = beautiful.bg_focus,
|
|
}
|
|
colors.bg = helpers.color.is_dark(beautiful.bg_normal)
|
|
and helpers.color.lighten(colors.bg)
|
|
or helpers.color.darken(colors.bg)
|
|
if type(args.colors) == "table" then
|
|
colors.bg = args.colors.bg or colors.bg
|
|
colors.fg = args.colors.fg or colors.fg
|
|
colors.alt_fg = args.colors.alt_fg or colors.alt_fg
|
|
end
|
|
-- Generate wallpaper:
|
|
if not args.screen then
|
|
for s in screen do
|
|
gears.wallpaper.set(
|
|
beautiful.theme_assets.wallpaper(
|
|
colors.bg,
|
|
colors.fg,
|
|
colors.alt_fg,
|
|
s
|
|
)
|
|
)
|
|
end
|
|
else
|
|
gears.wallpaper.set(
|
|
beautiful.theme_assets.wallpaper(
|
|
colors.bg,
|
|
colors.fg,
|
|
colors.alt_fg,
|
|
args.screen
|
|
)
|
|
)
|
|
end
|
|
end
|
|
|
|
--- Setup a wallpaper.
|
|
--
|
|
-- @tparam table args Parameters for the wallpaper. It may also contain all parameters your `args.set_function` needs
|
|
-- @int[opt=nil] args.screen The screen to use (as used in `gears.wallpaper` functions)
|
|
-- @int[opt=nil] args.change_timer Time in seconds for wallpaper changes
|
|
-- @tparam[opt=`setters.awesome` or `setters.simple`] function args.set_function A function to set the wallpaper
|
|
-- It takes args as parameter (the same args as the setup function).
|
|
-- This function is called at `"request::wallpaper"` `screen` signals and at `args.change_timer` timeouts.
|
|
-- There is no obligation, but for consistency, the function should use `args.wallpaper` as a feeder.
|
|
-- If `args.wallpaper` is defined, the default function is `setters.simple`, else it will be `setters.awesome`.
|
|
--
|
|
-- @usage
|
|
-- local wallpaper = require("wallpaper")
|
|
-- wallpaper.setup {
|
|
-- change_timer = 631, -- Prime number is better
|
|
-- set_function = wallpaper.setters.random,
|
|
-- -- parameters for the random setter
|
|
-- wallpaper = '/data/pictures/wallpapers',
|
|
-- position = "maximized",
|
|
-- }
|
|
--
|
|
-- @see apply
|
|
-- @see prepare_list
|
|
-- @see setters.simple
|
|
function setup(args)
|
|
local config = args or {}
|
|
config.set_function = config.set_function
|
|
or (config.wallpaper and setters.simple or setters.awesome_wallpaper)
|
|
local function set_wallpaper(s)
|
|
config.screen = s or config.screen
|
|
config.set_function(config)
|
|
end
|
|
|
|
if config.change_timer and config.change_timer > 0 then
|
|
gears.timer({
|
|
timeout = config.change_timer,
|
|
call_now = false,
|
|
autostart = true,
|
|
callback = function()
|
|
set_wallpaper()
|
|
end,
|
|
})
|
|
end
|
|
if awesome.version == "v4.3" then
|
|
awful.screen.connect_for_each_screen(set_wallpaper)
|
|
else
|
|
screen.connect_signal("request::wallpaper", set_wallpaper)
|
|
end
|
|
end
|
|
|
|
return {
|
|
setup = setup,
|
|
setters = setters,
|
|
apply = apply,
|
|
prepare_list = prepare_list,
|
|
}
|