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https://gitlab.freedesktop.org/pipewire/wireplumber.git
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b100bdda4a
With the latest changes, we can implement the "after-events" type with external code that pushes a very low priority event that is the "rescan" event.
66 lines
2 KiB
Lua
66 lines
2 KiB
Lua
-- WirePlumber
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--
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-- Copyright © 2022 Collabora Ltd.
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--
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-- SPDX-License-Identifier: MIT
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--
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-- Move & follow settings handlers. If the relevant settings are enabled,
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-- install hooks that will schedule a rescan of the graph when needed
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local config = require ("policy-config")
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local handles = {}
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function handleFollowSetting (enable)
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if (not handles.follow_hook) and (enable == true) then
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handles.follow_hook = SimpleEventHook {
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name = "follow@policy-desktop",
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priority = HookPriority.NORMAL,
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interests = {
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EventInterest {
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Constraint { "event.type", "=", "metadata-changed" },
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Constraint { "metadata.name", "=", "default" },
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Constraint { "event.subject.key", "c", "default.audio.source",
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"default.audio.sink", "default.video.source" },
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},
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},
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execute = function (event)
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local source = event:get_source ()
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source:call ("schedule-rescan")
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end
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}
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handles.follow_hook:register ()
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elseif (handles.follow_hook) and (enable == false) then
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handles.follow_hook:remove ()
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handles.follow_hook = nil
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end
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end
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function handleMoveSetting (enable)
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if (not handles.move_hook) and (enable == true) then
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handles.move_hook = SimpleEventHook {
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name = "move@policy-desktop",
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priority = HookPriority.NORMAL,
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interests = {
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EventInterest {
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Constraint { "event.type", "=", "metadata-changed" },
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Constraint { "metadata.name", "=", "default" },
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Constraint { "event.subject.key", "c", "target.node", "target.object" },
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},
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},
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execute = function (event)
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local source = event:get_source ()
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source:call ("schedule-rescan")
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end
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}
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handles.move_hook:register()
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elseif (handles.move_hook) and (enable == false) then
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handles.move_hook:remove ()
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handles.move_hook = nil
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end
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end
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config:subscribe ("follow", handleFollowSetting)
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handleFollowSetting (config.follow)
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config:subscribe ("move", handleMoveSetting)
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handleMoveSetting (config.move)
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