plasma-taskmanager-zoom/contents/ui/PulseAudio.qml

118 lines
3.9 KiB
QML

/*
SPDX-FileCopyrightText: 2017 Kai Uwe Broulik <kde@privat.broulik.de>
SPDX-License-Identifier: GPL-2.0-or-later
*/
pragma ComponentBehavior: Bound
import QtQuick
import org.kde.plasma.private.volume
QtObject {
id: pulseAudio
signal streamsChanged()
// It's a JS object so we can do key lookup and don't need to take care of filtering duplicates.
property var pidMatches: new Set()
// TODO Evict cache at some point, preferably if all instances of an application closed.
function registerPidMatch(appName: string) {
if (!hasPidMatch(appName)) {
pidMatches.add(appName);
// In case this match is new, notify that streams might have changed.
// This way we also catch the case when the non-playing instance
// shows up first.
// Only notify if we changed to avoid infinite recursion.
streamsChanged();
}
}
function hasPidMatch(appName: string): bool {
return pidMatches.has(appName);
}
function findStreams(key: string, value: var): /*[QtObject]*/ var {
return findStreamsFn(stream => stream[key] === value);
}
function findStreamsFn(fn: var): var {
const streams = [];
for (let i = 0, count = instantiator.count; i < count; ++i) {
const stream = instantiator.objectAt(i);
if (fn(stream)) {
streams.push(stream);
}
}
return streams;
}
function streamsForAppId(appId: string): /*[QtObject]*/ var {
return findStreams("portalAppId", appId);
}
function streamsForAppName(appName: string): /*[QtObject]*/ var {
return findStreams("appName", appName);
}
function streamsForPid(pid: int): /*[QtObject]*/ var {
// skip stream that has portalAppId
// app using portal may have a sandbox pid
const streams = findStreamsFn(stream => stream.pid === pid && !stream.portalAppId);
if (streams.length === 0) {
for (let i = 0, length = instantiator.count; i < length; ++i) {
const stream = instantiator.objectAt(i);
if (stream.parentPid === -1) {
stream.parentPid = backend.parentPid(stream.pid);
}
if (stream.parentPid === pid) {
streams.push(stream);
}
}
}
return streams;
}
// QtObject has no default property, hence adding the Instantiator to one explicitly.
readonly property Instantiator instantiator: Instantiator {
model: PulseObjectFilterModel {
filters: [ { role: "VirtualStream", value: false } ]
sourceModel: SinkInputModel {}
}
delegate: QtObject {
id: delegate
required property var model
readonly property int pid: model.Client?.properties["application.process.id"] ?? 0
// Determined on demand.
property int parentPid: -1
readonly property string appName: model.Client?.properties["application.name"] ?? ""
readonly property string portalAppId: model.Client?.properties["pipewire.access.portal.app_id"] ?? ""
readonly property bool muted: model.Muted
// whether there is nothing actually going on on that stream
readonly property bool corked: model.Corked
readonly property int volume: model.Volume
function mute(): void {
model.Muted = true;
}
function unmute(): void {
model.Muted = false;
}
}
onObjectAdded: (index, object) => pulseAudio.streamsChanged()
onObjectRemoved: (index, object) => pulseAudio.streamsChanged()
}
readonly property int minimalVolume: PulseAudio.MinimalVolume
readonly property int normalVolume: PulseAudio.NormalVolume
}