Move screencasting into a separate service process

Move the screencasting into a separate D-Bus service process, using
PipeWire instead of Clutter API. The service is implemented in
Javascript using the dbusService.js helper, and implements the same API
as was done by screencast.js and the corresponding C code.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1372

js/dbusServices/meson.build

@@ -8,6 +8,12 @@ dbus_services = {
   'org.gnome.Shell.Notifications': 'notifications',
 }
 
+if enable_recorder
+  dbus_services += {
+    'org.gnome.Shell.Screencast': 'screencast',
+  }
+endif
+
 config_dir = '@0@/..'.format(meson.current_build_dir())
 
 foreach service, dir : dbus_services

js/dbusServices/org.gnome.Shell.Screencast.src.gresource.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/org/gnome/Shell/Screencast/js">
+    <file>main.js</file>
+    <file>screencastService.js</file>
+    <file>dbusService.js</file>
+
+    <file>misc/config.js</file>
+    <file>misc/fileUtils.js</file>
+  </gresource>
+</gresources>

js/dbusServices/screencast/main.js

@@ -0,0 +1,11 @@
+/* exported main */
+
+const { DBusService } = imports.dbusService;
+const { ScreencastService } = imports.screencastService;
+
+function main() {
+    const service = new DBusService(
+        'org.gnome.Shell.Screencast',
+        new ScreencastService());
+    service.run();
+}

js/dbusServices/screencast/screencastService.js

@@ -0,0 +1,458 @@
+// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+/* exported ScreencastService */
+
+const { Gio, GLib, Gst } = imports.gi;
+
+const { loadInterfaceXML, loadSubInterfaceXML } = imports.misc.fileUtils;
+const { ServiceImplementation } = imports.dbusService;
+
+const ScreencastIface = loadInterfaceXML('org.gnome.Shell.Screencast');
+
+const IntrospectIface = loadInterfaceXML('org.gnome.Shell.Introspect');
+const IntrospectProxy = Gio.DBusProxy.makeProxyWrapper(IntrospectIface);
+
+const ScreenCastIface = loadSubInterfaceXML(
+    'org.gnome.Mutter.ScreenCast', 'org.gnome.Mutter.ScreenCast');
+const ScreenCastSessionIface = loadSubInterfaceXML(
+    'org.gnome.Mutter.ScreenCast.Session', 'org.gnome.Mutter.ScreenCast');
+const ScreenCastStreamIface = loadSubInterfaceXML(
+    'org.gnome.Mutter.ScreenCast.Stream', 'org.gnome.Mutter.ScreenCast');
+const ScreenCastProxy = Gio.DBusProxy.makeProxyWrapper(ScreenCastIface);
+const ScreenCastSessionProxy = Gio.DBusProxy.makeProxyWrapper(ScreenCastSessionIface);
+const ScreenCastStreamProxy = Gio.DBusProxy.makeProxyWrapper(ScreenCastStreamIface);
+
+const DEFAULT_PIPELINE = 'vp8enc min_quantizer=13 max_quantizer=13 cpu-used=5 deadline=1000000 threads=%T ! queue ! webmmux';
+const DEFAULT_FRAMERATE = 30;
+const DEFAULT_DRAW_CURSOR = true;
+
+const PipelineState = {
+    INIT: 0,
+    PLAYING: 1,
+    FLUSHING: 2,
+    STOPPED: 3,
+};
+
+const SessionState = {
+    INIT: 0,
+    ACTIVE: 1,
+    STOPPED: 2,
+};
+
+var Recorder = class {
+    constructor(sessionPath, x, y, width, height, filePath, options,
+        invocation,
+        onErrorCallback) {
+        this._startInvocation = invocation;
+        this._dbusConnection = invocation.get_connection();
+        this._onErrorCallback = onErrorCallback;
+        this._stopInvocation = null;
+
+        this._pipelineIsPlaying = false;
+        this._sessionIsActive = false;
+
+        this._x = x;
+        this._y = y;
+        this._width = width;
+        this._height = height;
+        this._filePath = filePath;
+
+        this._pipelineString = DEFAULT_PIPELINE;
+        this._framerate = DEFAULT_FRAMERATE;
+        this._drawCursor = DEFAULT_DRAW_CURSOR;
+
+        this._applyOptions(options);
+        this._watchSender(invocation.get_sender());
+
+        this._initSession(sessionPath);
+    }
+
+    _applyOptions(options) {
+        for (const option in options)
+            options[option] = options[option].deep_unpack();
+
+        if (options['pipeline'] !== undefined)
+            this._pipelineString = options['pipeline'];
+        if (options['framerate'] !== undefined)
+            this._framerate = options['framerate'];
+        if ('draw-cursor' in options)
+            this._drawCursor = options['draw-cursor'];
+    }
+
+    _watchSender(sender) {
+        this._nameWatchId = this._dbusConnection.watch_name(
+            sender,
+            Gio.BusNameWatcherFlags.NONE,
+            null,
+            this._senderVanished.bind(this));
+    }
+
+    _unwatchSender() {
+        if (this._nameWatchId !== 0) {
+            this._dbusConnection.unwatch_name(this._nameWatchId);
+            this._nameWatchId = 0;
+        }
+    }
+
+    _senderVanished() {
+        this._unwatchSender();
+
+        this.stopRecording(null);
+    }
+
+    _notifyStopped() {
+        this._unwatchSender();
+        if (this._onStartedCallback)
+            this._onStartedCallback(this, false);
+        else if (this._onStoppedCallback)
+            this._onStoppedCallback(this);
+        else
+            this._onErrorCallback(this);
+    }
+
+    _onSessionClosed() {
+        switch (this._pipelineState) {
+        case PipelineState.STOPPED:
+            break;
+        default:
+            this._pipeline.set_state(Gst.State.NULL);
+            log(`Unexpected pipeline state: ${this._pipelineState}`);
+            break;
+        }
+        this._notifyStopped();
+    }
+
+    _initSession(sessionPath) {
+        this._sessionProxy = new ScreenCastSessionProxy(Gio.DBus.session,
+            'org.gnome.Mutter.ScreenCast',
+            sessionPath);
+        this._sessionProxy.connectSignal('Closed', this._onSessionClosed.bind(this));
+    }
+
+    _startPipeline(nodeId) {
+        this._ensurePipeline(nodeId);
+
+        const bus = this._pipeline.get_bus();
+        bus.add_watch(bus, this._onBusMessage.bind(this));
+
+        this._pipeline.set_state(Gst.State.PLAYING);
+        this._pipelineState = PipelineState.PLAYING;
+
+        this._onStartedCallback(this, true);
+        this._onStartedCallback = null;
+    }
+
+    startRecording(onStartedCallback) {
+        this._onStartedCallback = onStartedCallback;
+
+        const [streamPath] = this._sessionProxy.RecordAreaSync(
+            this._x, this._y,
+            this._width, this._height,
+            {
+                'is-recording': GLib.Variant.new('b', true),
+                'cursor-mode': GLib.Variant.new('u', this._drawCursor ? 1 : 0),
+            });
+
+        this._streamProxy = new ScreenCastStreamProxy(Gio.DBus.session,
+            'org.gnome.ScreenCast.Stream',
+            streamPath);
+
+        this._streamProxy.connectSignal('PipeWireStreamAdded',
+            (proxy, sender, params) => {
+                const [nodeId] = params;
+                this._startPipeline(nodeId);
+            });
+        this._sessionProxy.StartSync();
+        this._sessionState = SessionState.ACTIVE;
+    }
+
+    stopRecording(onStoppedCallback) {
+        this._pipelineState = PipelineState.FLUSHING;
+        this._onStoppedCallback = onStoppedCallback;
+        this._pipeline.send_event(Gst.Event.new_eos());
+    }
+
+    _stopSession() {
+        this._sessionProxy.StopSync();
+        this._sessionState = SessionState.STOPPED;
+    }
+
+    _onBusMessage(bus, message, _) {
+        switch (message.type) {
+        case Gst.MessageType.EOS:
+            this._pipeline.set_state(Gst.State.NULL);
+
+            switch (this._pipelineState) {
+            case PipelineState.FLUSHING:
+                this._pipelineState = PipelineState.STOPPED;
+                break;
+            default:
+                break;
+            }
+
+            switch (this._sessionState) {
+            case SessionState.ACTIVE:
+                this._stopSession();
+                break;
+            case SessionState.STOPPED:
+                this._notifyStopped();
+                break;
+            default:
+                break;
+            }
+
+            break;
+        default:
+            break;
+        }
+        return true;
+    }
+
+    _substituteThreadCount(pipelineDescr) {
+        const numProcessors = GLib.get_num_processors();
+        const numThreads = Math.min(Math.max(1, numProcessors), 64);
+        return pipelineDescr.replace(/%T/, numThreads);
+    }
+
+    _ensurePipeline(nodeId) {
+        const framerate = this._framerate;
+
+        let fullPipeline = `
+            pipewiresrc path=${nodeId}
+                        do-timestamp=true
+                        keepalive-time=1000
+                        resend-last=true !
+            video/x-raw,max-framerate=${framerate}/1 !
+            videoconvert !
+            ${this._pipelineString} !
+            filesink location=${this._filePath}`;
+        fullPipeline = this._substituteThreadCount(fullPipeline);
+
+        this._pipeline = Gst.parse_launch_full(fullPipeline,
+            null,
+            Gst.ParseFlags.FATAL_ERRORS);
+    }
+};
+
+var ScreencastService = class extends ServiceImplementation {
+    constructor() {
+        super(ScreencastIface, '/org/gnome/Shell/Screencast');
+
+        Gst.init(null);
+
+        this._recorders = new Map();
+        this._senders = new Map();
+
+        this._lockdownSettings = new Gio.Settings({
+            schema_id: 'org.gnome.desktop.lockdown',
+        });
+
+        this._proxy = new ScreenCastProxy(Gio.DBus.session,
+            'org.gnome.Mutter.ScreenCast',
+            '/org/gnome/Mutter/ScreenCast');
+
+        this._introspectProxy = new IntrospectProxy(Gio.DBus.session,
+            'org.gnome.Shell.Introspect',
+            '/org/gnome/Shell/Introspect');
+    }
+
+    _removeRecorder(sender) {
+        this._recorders.delete(sender);
+        if (this._recorders.size === 0)
+            this.release();
+    }
+
+    _addRecorder(sender, recorder) {
+        this._recorders.set(sender, recorder);
+        if (this._recorders.size === 1)
+            this.hold();
+    }
+
+    _getAbsolutePath(filename) {
+        if (GLib.path_is_absolute(filename))
+            return filename;
+
+        let videoDir = GLib.get_user_special_dir(GLib.UserDirectory.DIRECTORY_VIDEOS);
+        if (!GLib.file_test(videoDir, GLib.FileTest.EXISTS))
+            videoDir = GLib.get_home_dir();
+
+        return GLib.build_filenamev([videoDir, filename]);
+    }
+
+    _generateFilePath(template) {
+        let filename = '';
+        let escape = false;
+
+        [...template].forEach(c => {
+            if (escape) {
+                switch (c) {
+                case '%':
+                    filename += '%';
+                    break;
+                case 'd': {
+                    const datetime = GLib.DateTime.new_now_local();
+                    const datestr = datetime.format('%0x');
+                    const datestrEscaped = datestr.replace(/\//g, '-');
+
+                    filename += datestrEscaped;
+                    break;
+                }
+
+                case 't': {
+                    const datetime = GLib.DateTime.new_now_local();
+                    const datestr = datetime.format('%0X');
+                    const datestrEscaped = datestr.replace(/\//g, ':');
+
+                    filename += datestrEscaped;
+                    break;
+                }
+
+                default:
+                    log(`Warning: Unknown escape ${c}`);
+                }
+
+                escape = false;
+            } else if (c === '%') {
+                escape = true;
+            } else {
+                filename += c;
+            }
+        });
+
+        if (escape)
+            filename += '%';
+
+        return this._getAbsolutePath(filename);
+    }
+
+    ScreencastAsync(params, invocation) {
+        let returnValue = [false, ''];
+
+        if (this._lockdownSettings.get_boolean('disable-save-to-disk')) {
+            invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+            return;
+        }
+
+        const sender = invocation.get_sender();
+
+        if (this._recorders.get(sender)) {
+            invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+            return;
+        }
+
+        const [sessionPath] = this._proxy.CreateSessionSync({});
+
+        const [fileTemplate, options] = params;
+        const [screenWidth, screenHeight] = this._introspectProxy.ScreenSize;
+        const filePath = this._generateFilePath(fileTemplate);
+
+        let recorder;
+
+        try {
+            recorder = new Recorder(
+                sessionPath,
+                0, 0,
+                screenWidth, screenHeight,
+                fileTemplate,
+                options,
+                invocation,
+                _recorder => this._removeRecorder(sender));
+        } catch (error) {
+            log(`Failed to create recorder: ${error.message}`);
+            invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+            return;
+        }
+
+        this._addRecorder(sender, recorder);
+
+        try {
+            recorder.startRecording(
+                (_, result) => {
+                    if (result) {
+                        returnValue = [true, filePath];
+                        invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+                    } else {
+                        this._removeRecorder(sender);
+                        invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+                    }
+
+                });
+        } catch (error) {
+            log(`Failed to start recorder: ${error.message}`);
+            this._removeRecorder(sender);
+            invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+        }
+    }
+
+    ScreencastAreaAsync(params, invocation) {
+        let returnValue = [false, ''];
+
+        if (this._lockdownSettings.get_boolean('disable-save-to-disk')) {
+            invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+            return;
+        }
+
+        const sender = invocation.get_sender();
+
+        if (this._recorders.get(sender)) {
+            invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+            return;
+        }
+
+        const [sessionPath] = this._proxy.CreateSessionSync({});
+
+        const [x, y, width, height, fileTemplate, options] = params;
+        const filePath = this._generateFilePath(fileTemplate);
+
+        let recorder;
+
+        try {
+            recorder = new Recorder(
+                sessionPath,
+                x, y,
+                width, height,
+                filePath,
+                options,
+                invocation,
+                _recorder => this._removeRecorder(sender));
+        } catch (error) {
+            log(`Failed to create recorder: ${error.message}`);
+            invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+            return;
+        }
+
+        this._addRecorder(sender, recorder);
+
+        try {
+            recorder.startRecording(
+                (_, result) => {
+                    if (result) {
+                        returnValue = [true, filePath];
+                        invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+                    } else {
+                        this._removeRecorder(sender);
+                        invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+                    }
+
+                });
+        } catch (error) {
+            log(`Failed to start recorder: ${error.message}`);
+            this._removeRecorder(sender);
+            invocation.return_value(GLib.Variant.new('(bs)', returnValue));
+        }
+    }
+
+    StopScreencastAsync(params, invocation) {
+        const sender = invocation.get_sender();
+
+        const recorder = this._recorders.get(sender);
+        if (!recorder) {
+            invocation.return_value(GLib.Variant.new('(b)', [false]));
+            return;
+        }
+
+        recorder.stopRecording(() => {
+            this._removeRecorder(sender);
+            invocation.return_value(GLib.Variant.new('(b)', [true]));
+        });
+    }
+};

js/js-resources.gresource.xml

@@ -92,7 +92,6 @@
     <file>ui/ripples.js</file>
     <file>ui/runDialog.js</file>
     <file>ui/screenShield.js</file>
-    <file>ui/screencast.js</file>
     <file>ui/screenshot.js</file>
     <file>ui/scripting.js</file>
     <file>ui/search.js</file>
@@ -137,7 +136,6 @@
     <file>ui/status/volume.js</file>
     <file>ui/status/bluetooth.js</file>
     <file>ui/status/remoteAccess.js</file>
-    <file>ui/status/screencast.js</file>
     <file>ui/status/system.js</file>
     <file>ui/status/thunderbolt.js</file>
   </gresource>

js/misc/fileUtils.js

@@ -1,6 +1,6 @@
 // -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
 /* exported collectFromDatadirs, recursivelyDeleteDir,
-            recursivelyMoveDir, loadInterfaceXML */
+            recursivelyMoveDir, loadInterfaceXML, loadSubInterfaceXML */
 
 const { Gio, GLib } = imports.gi;
 const Config = imports.misc.config;
@@ -67,14 +67,19 @@ function recursivelyMoveDir(srcDir, destDir) {
 }
 
 let _ifaceResource = null;
+function ensureIfaceResource() {
+    if (_ifaceResource)
+        return;
+
+    // don't use global.datadir so the method is usable from tests/tools
+    let dir = GLib.getenv('GNOME_SHELL_DATADIR') || Config.PKGDATADIR;
+    let path = `${dir}/gnome-shell-dbus-interfaces.gresource`;
+    _ifaceResource = Gio.Resource.load(path);
+    _ifaceResource._register();
+}
+
 function loadInterfaceXML(iface) {
-    if (!_ifaceResource) {
-        // don't use global.datadir so the method is usable from tests/tools
-        let dir = GLib.getenv('GNOME_SHELL_DATADIR') || Config.PKGDATADIR;
-        let path = `${dir}/gnome-shell-dbus-interfaces.gresource`;
-        _ifaceResource = Gio.Resource.load(path);
-        _ifaceResource._register();
-    }
+    ensureIfaceResource();
 
     let uri = `resource:///org/gnome/shell/dbus-interfaces/${iface}.xml`;
     let f = Gio.File.new_for_uri(uri);
@@ -88,3 +93,25 @@ function loadInterfaceXML(iface) {
 
     return null;
 }
+
+function loadSubInterfaceXML(iface, ifaceFile) {
+    let xml = loadInterfaceXML(ifaceFile);
+    if (!xml)
+        return null;
+
+    let ifaceStartTag = `<interface name="${iface}">`;
+    let ifaceStopTag = '</interface>';
+    let ifaceStartIndex = xml.indexOf(ifaceStartTag);
+    let ifaceEndIndex = xml.indexOf(ifaceStopTag, ifaceStartIndex + 1) + ifaceStopTag.length;
+
+    let xmlHeader = '<!DOCTYPE node PUBLIC\n' +
+        '\'-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\'\n' +
+        '\'http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\'>\n' +
+        '<node>\n';
+    let xmlFooter = '</node>';
+
+    return (
+        xmlHeader +
+        xml.substr(ifaceStartIndex, ifaceEndIndex - ifaceStartIndex) +
+        xmlFooter);
+}

js/ui/main.js

@@ -3,10 +3,10 @@
             ctrlAltTabManager, padOsdService, osdWindowManager,
             osdMonitorLabeler, shellMountOpDBusService, shellDBusService,
             shellAccessDialogDBusService, shellAudioSelectionDBusService,
-            screenSaverDBus, screencastService, uiGroup, magnifier,
-            xdndHandler, keyboard, kbdA11yDialog, introspectService,
-            start, pushModal, popModal, activateWindow, createLookingGlass,
-            initializeDeferredWork, getThemeStylesheet, setThemeStylesheet */
+            screenSaverDBus, uiGroup, magnifier, xdndHandler, keyboard,
+            kbdA11yDialog, introspectService, start, pushModal, popModal,
+            activateWindow, createLookingGlass, initializeDeferredWork,
+            getThemeStylesheet, setThemeStylesheet */
 
 const { Clutter, Gio, GLib, GObject, Meta, Shell, St } = imports.gi;
 
@@ -34,7 +34,6 @@ const LoginManager = imports.misc.loginManager;
 const LookingGlass = imports.ui.lookingGlass;
 const NotificationDaemon = imports.ui.notificationDaemon;
 const WindowAttentionHandler = imports.ui.windowAttentionHandler;
-const Screencast = imports.ui.screencast;
 const ScreenShield = imports.ui.screenShield;
 const Scripting = imports.ui.scripting;
 const SessionMode = imports.ui.sessionMode;
@@ -74,7 +73,6 @@ var shellAudioSelectionDBusService = null;
 var shellDBusService = null;
 var shellMountOpDBusService = null;
 var screenSaverDBus = null;
-var screencastService = null;
 var modalCount = 0;
 var actionMode = Shell.ActionMode.NONE;
 var modalActorFocusStack = [];
@@ -200,7 +198,6 @@ function _initializeUI() {
     uiGroup = layoutManager.uiGroup;
 
     padOsdService = new PadOsd.PadOsdService();
-    screencastService = new Screencast.ScreencastService();
     xdndHandler = new XdndHandler.XdndHandler();
     ctrlAltTabManager = new CtrlAltTab.CtrlAltTabManager();
     osdWindowManager = new OsdWindow.OsdWindowManager();

js/ui/panel.js

@@ -736,13 +736,11 @@ class AggregateMenu extends PanelMenu.Button {
         this._volume = new imports.ui.status.volume.Indicator();
         this._brightness = new imports.ui.status.brightness.Indicator();
         this._system = new imports.ui.status.system.Indicator();
-        this._screencast = new imports.ui.status.screencast.Indicator();
         this._location = new imports.ui.status.location.Indicator();
         this._nightLight = new imports.ui.status.nightLight.Indicator();
         this._thunderbolt = new imports.ui.status.thunderbolt.Indicator();
 
         this._indicators.add_child(this._thunderbolt);
-        this._indicators.add_child(this._screencast);
         this._indicators.add_child(this._location);
         this._indicators.add_child(this._nightLight);
         if (this._network)

js/ui/screencast.js

@@ -1,146 +0,0 @@
-// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
-
-const { Gio, GLib, Shell } = imports.gi;
-const Signals = imports.signals;
-
-const Main = imports.ui.main;
-
-const { loadInterfaceXML } = imports.misc.fileUtils;
-
-const ScreencastIface = loadInterfaceXML('org.gnome.Shell.Screencast');
-
-var ScreencastService = class {
-    constructor() {
-        this._dbusImpl = Gio.DBusExportedObject.wrapJSObject(ScreencastIface, this);
-        this._dbusImpl.export(Gio.DBus.session, '/org/gnome/Shell/Screencast');
-
-        Gio.DBus.session.own_name('org.gnome.Shell.Screencast', Gio.BusNameOwnerFlags.REPLACE, null, null);
-
-        this._recorders = new Map();
-
-        this._lockdownSettings = new Gio.Settings({ schema_id: 'org.gnome.desktop.lockdown' });
-
-        Main.sessionMode.connect('updated', this._sessionUpdated.bind(this));
-    }
-
-    get isRecording() {
-        return this._recorders.size > 0;
-    }
-
-    _ensureRecorderForSender(sender) {
-        let recorder = this._recorders.get(sender);
-        if (!recorder) {
-            recorder = new Shell.Recorder({ stage: global.stage,
-                                            display: global.display });
-            recorder._watchNameId =
-                Gio.bus_watch_name(Gio.BusType.SESSION, sender, 0, null,
-                                   this._onNameVanished.bind(this));
-            this._recorders.set(sender, recorder);
-            this.emit('updated');
-        }
-        return recorder;
-    }
-
-    _sessionUpdated() {
-        if (Main.sessionMode.allowScreencast)
-            return;
-
-        for (let sender of this._recorders.keys())
-            this._stopRecordingForSender(sender);
-    }
-
-    _onNameVanished(connection, name) {
-        this._stopRecordingForSender(name);
-    }
-
-    _stopRecordingForSender(sender) {
-        let recorder = this._recorders.get(sender);
-        if (!recorder)
-            return false;
-
-        Gio.bus_unwatch_name(recorder._watchNameId);
-        recorder.close();
-        this._recorders.delete(sender);
-        this.emit('updated');
-
-        return true;
-    }
-
-    _applyOptionalParameters(recorder, options) {
-        for (let option in options)
-            options[option] = options[option].deep_unpack();
-
-        if (options['pipeline'])
-            recorder.set_pipeline(options['pipeline']);
-        if (options['framerate'])
-            recorder.set_framerate(options['framerate']);
-        if ('draw-cursor' in options)
-            recorder.set_draw_cursor(options['draw-cursor']);
-    }
-
-    ScreencastAsync(params, invocation) {
-        let returnValue = [false, ''];
-        if (!Main.sessionMode.allowScreencast ||
-            this._lockdownSettings.get_boolean('disable-save-to-disk')) {
-            invocation.return_value(GLib.Variant.new('(bs)', returnValue));
-            return;
-        }
-
-        let sender = invocation.get_sender();
-        let recorder = this._ensureRecorderForSender(sender);
-        if (!recorder.is_recording()) {
-            let [fileTemplate, options] = params;
-
-            recorder.set_file_template(fileTemplate);
-            this._applyOptionalParameters(recorder, options);
-            let [success, fileName] = recorder.record();
-            returnValue = [success, fileName ? fileName : ''];
-            if (!success)
-                this._stopRecordingForSender(sender);
-        }
-
-        invocation.return_value(GLib.Variant.new('(bs)', returnValue));
-    }
-
-    ScreencastAreaAsync(params, invocation) {
-        let returnValue = [false, ''];
-        if (!Main.sessionMode.allowScreencast ||
-            this._lockdownSettings.get_boolean('disable-save-to-disk')) {
-            invocation.return_value(GLib.Variant.new('(bs)', returnValue));
-            return;
-        }
-
-        let sender = invocation.get_sender();
-        let recorder = this._ensureRecorderForSender(sender);
-
-        if (!recorder.is_recording()) {
-            let [x, y, width, height, fileTemplate, options] = params;
-
-            if (x < 0 || y < 0 ||
-                width <= 0 || height <= 0 ||
-                x + width > global.screen_width ||
-                y + height > global.screen_height) {
-                invocation.return_error_literal(Gio.IOErrorEnum,
-                                                Gio.IOErrorEnum.CANCELLED,
-                                                "Invalid params");
-                return;
-            }
-
-            recorder.set_file_template(fileTemplate);
-            recorder.set_area(x, y, width, height);
-            this._applyOptionalParameters(recorder, options);
-            let [success, fileName] = recorder.record();
-            returnValue = [success, fileName ? fileName : ''];
-            if (!success)
-                this._stopRecordingForSender(sender);
-        }
-
-        invocation.return_value(GLib.Variant.new('(bs)', returnValue));
-    }
-
-    StopScreencastAsync(params, invocation) {
-        let success = this._stopRecordingForSender(invocation.get_sender());
-        invocation.return_value(GLib.Variant.new('(b)', [success]));
-    }
-};
-Signals.addSignalMethods(ScreencastService.prototype);

js/ui/status/screencast.js

@@ -1,25 +0,0 @@
-// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
-/* exported Indicator */
-
-const GObject = imports.gi.GObject;
-
-const Main = imports.ui.main;
-const PanelMenu = imports.ui.panelMenu;
-
-var Indicator = GObject.registerClass(
-class Indicator extends PanelMenu.SystemIndicator {
-    _init() {
-        super._init();
-
-        this._indicator = this._addIndicator();
-        this._indicator.icon_name = 'media-record-symbolic';
-        this._indicator.add_style_class_name('screencast-indicator');
-        this._sync();
-
-        Main.screencastService.connect('updated', this._sync.bind(this));
-    }
-
-    _sync() {
-        this._indicator.visible = Main.screencastService.isRecording;
-    }
-});