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local gobject = require "gears.object"
local playerctl = require "services.mpris.playerctl"
local qpersistent = require "quarrel.persistent"
---@class ServiceMpris : gears.object
---@field inner Playerctl
---@field index number the index of the currently active player
local M = {}
---@param self ServiceMpris
---@param player Playerctl.data
local function update_player(self, player)
self:emit_signal("player::metadata", player)
self:emit_signal("player::position", player)
-- handle_position(nil, player)
end
---@param diff_player Playerctl.data
local function recalculate_active_player(diff_player, vanished)
if type(diff_player) ~= "table" then
return
end
-- if #layout.children == 0 then
-- M.active_player_index = 1
-- update_player()
-- return
-- end
local active_player = players[M.active_player_index]
if not active_player then -- we're recovering from a state with no players
update_player(diff_player)
return
end
if diff_player.instance == active_player.instance and vanished then -- active player vanished; fall back to previous player
M.previous_player()
else -- non-active player appeared/vanished; try to find active player
for i, p in ipairs(playerctl:list()) do
if p.instance == active_player.instance then
M.active_player_index = i
update_player(p)
return
end
end
gdebug.print_warning(
"failed to find active player:\n " .. gdebug.dump_return(active_player, nil, 2):gsub("\n", "\n ")
)
M.active_player_index = 1
update_player(playerctl:list()[M.active_player_index])
end
end
function M:next_player()
local players = self.inner:list()
if #players == 0 then
return
elseif self.index + 1 > #players then
self.index = 1
else
self.index = self.index + 1
end
-- update_player(playerctl:list()[M.active_player_index])
local player = players[self.index]
self:emit_signal("player::metadata", player)
self:emit_signal("player::position", player)
end
function M:previous_player()
local players = self.inner:list()
if #players == 0 then
return
elseif self.index - 1 < #players then
self.index = #players
else
self.index = self.index - 1
end
local player = players[self.index]
self:emit_signal("player::metadata", player)
self:emit_signal("player::position", player)
end
M.inner = playerctl.new {
players = {},
metadata = {
album = "xesam:album",
title = "xesam:title",
artist = "xesam:artist",
art = "mpris:artUrl",
},
}
local instance = gobject { class = M }
instance:connect_signal("property::index", function(self, index)
qpersistent.store("active_player_index", self.index)
end)
return instance
|
