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| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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-- WirePlumber
--
-- Copyright © 2022 Collabora Ltd.
--
-- SPDX-License-Identifier: MIT
--
-- This file contains all the logic related to saving device profiles
-- to a state file and restoring them later on.
-- A devices profile needs to be selected for any new device. the script selects
-- the device profile from the user preferences, as well as store the user
-- selected device profile to state file
cutils = require ("common-utils")
log = Log.open_topic ("s-device")
-- the state storage
state = nil
state_table = nil
find_stored_profile_hook = SimpleEventHook {
name = "device/find-stored-profile",
interests = {
EventInterest {
Constraint { "event.type", "=", "select-profile" },
},
},
execute = function (event)
local selected_profile = event:get_data ("selected-profile")
-- skip hook if profile is already selected
if selected_profile then
return
end
local device = event:get_subject ()
local dev_name = device.properties["device.name"]
if not dev_name then
log:critical (device, "invalid device.name")
return
end
local profile_name = state_table[dev_name]
if profile_name then
for p in device:iterate_params ("EnumProfile") do
local profile = cutils.parseParam (p, "EnumProfile")
if profile.name == profile_name and profile.available ~= "no" then
selected_profile = profile
break
end
end
end
if selected_profile then
log:info (device, string.format (
"Found stored profile '%s' (%d) for device '%s'",
selected_profile.name, selected_profile.index, dev_name))
event:set_data ("selected-profile", selected_profile)
end
end
}
store_user_selected_profile_hook = SimpleEventHook {
name = "device/store-user-selected-profile",
interests = {
EventInterest {
Constraint { "event.type", "=", "device-params-changed" },
Constraint { "event.subject.param-id", "=", "Profile" },
},
},
execute = function (event)
local device = event:get_subject ()
for p in device:iterate_params ("Profile") do
local profile = cutils.parseParam (p, "Profile")
if profile.save then
-- store only if this was a user-generated action (save == true)
updateStoredProfile (device, profile)
end
end
end
}
function updateStoredProfile (device, profile)
local dev_name = device.properties["device.name"]
local index = nil
if not dev_name then
log:critical (device, "invalid device.name")
return
end
log:debug (device, string.format (
"update stored profile to '%s' (%d) for device '%s'",
profile.name, profile.index, dev_name))
-- check if the new profile is the same as the current one
if state_table[dev_name] == profile.name then
log:debug (device, " ... profile is already stored")
return
end
-- find the full profile from EnumProfile, making also sure that the
-- user / client application has actually set an existing profile
for p in device:iterate_params ("EnumProfile") do
local enum_profile = cutils.parseParam (p, "EnumProfile")
if enum_profile.name == profile.name then
index = enum_profile.index
end
end
if not index then
log:info (device, string.format (
"profile '%s' (%d) is not valid on device '%s'",
profile.name, profile.index, dev_name))
return
end
state_table[dev_name] = profile.name
state:save_after_timeout (state_table)
log:info (device, string.format (
"stored profile '%s' (%d) for device '%s'",
profile.name, index, dev_name))
end
function toggleState (enable)
if enable and not state then
state = State ("default-profile")
state_table = state:load ()
find_stored_profile_hook:register ()
store_user_selected_profile_hook:register ()
elseif not enable and state then
state = nil
state_table = nil
find_stored_profile_hook:remove ()
store_user_selected_profile_hook:remove ()
end
end
Settings.subscribe ("device.restore-profile", function ()
toggleState (Settings.get_boolean ("device.restore-profile"))
end)
toggleState (Settings.get_boolean ("device.restore-profile"))