[rygel] core: Add forgotten RenderingControl file

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit fad31baa8cb58cc79ee645b8e16811bbac2e3a50
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Mon Aug 2 14:58:50 2010 +0300

    core: Add forgotten RenderingControl file

 src/rygel/rygel-rendering-control.vala |  246 ++++++++++++++++++++++++++++++++
 1 files changed, 246 insertions(+), 0 deletions(-)
---
diff --git a/src/rygel/rygel-rendering-control.vala b/src/rygel/rygel-rendering-control.vala
new file mode 100644
index 0000000..e7861bf
--- /dev/null
+++ b/src/rygel/rygel-rendering-control.vala
@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) 2008 OpenedHand Ltd.
+ * Copyright (C) 2009 Nokia Corporation.
+ *
+ * Author: Jorn Baayen <jorn openedhand com>
+ *         Zeeshan Ali (Khattak) <zeeshanak gnome org>
+ *                               <zeeshan ali nokia com>
+ *
+ * Rygel is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Rygel is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+using GUPnP;
+using Rygel;
+
+public class Rygel.RenderingControl : Service {
+    public const string UPNP_ID = "urn:upnp-org:serviceId:RenderingControl";
+    public const string UPNP_TYPE =
+                    "urn:schemas-upnp-org:service:RenderingControl:2";
+    public const string DESCRIPTION_PATH = "xml/RenderingControl2.xml";
+    public const string LAST_CHANGE_NS =
+                    "urn:schemas-upnp-org:metadata-1-0/RCS/";
+
+    private bool _mute = false;
+    public bool mute {
+        get {
+            return this._mute;
+        }
+
+        set {
+            this._mute = value;
+
+            if (this._mute) {
+                this.player.volume = 0;
+            } else {
+                this.player.volume = Volume.from_percentage (this.volume);
+            }
+
+            this.changelog.log_with_channel ("Mute",
+                                             this.mute ? "1" : "0",
+                                             "Master");
+        }
+    }
+
+    private uint _volume = 0;
+    public uint volume {
+        get {
+            return this._volume;
+        }
+
+        set {
+            this._volume = value;
+
+            if (!this.mute) {
+                this.player.volume = Volume.from_percentage (this.volume);
+            }
+
+            this.changelog.log_with_channel ("Volume",
+                                             this.volume.to_string (),
+                                             "Master");
+        }
+    }
+
+    private string preset_name_list = "";
+
+    private ChangeLog changelog;
+    private MediaPlayer player;
+
+    public override void constructed () {
+        this.changelog = new ChangeLog (this, LAST_CHANGE_NS);
+        this.player = this.get_player ();
+
+        query_variable["LastChange"].connect (this.query_last_change_cb);
+
+        action_invoked["ListPresets"].connect (this.list_presets_cb);
+        action_invoked["SelectPreset"].connect (this.select_preset_cb);
+        action_invoked["GetMute"].connect (this.get_mute_cb);
+        action_invoked["SetMute"].connect (this.set_mute_cb);
+        action_invoked["GetVolume"].connect (this.get_volume_cb);
+        action_invoked["SetVolume"].connect (this.set_volume_cb);
+
+        this._volume = Volume.to_percentage (this.player.volume);
+    }
+
+    private void query_last_change_cb (Service        service,
+                                       string         variable,
+                                       ref GLib.Value value) {
+        // Send current state
+        var log = new ChangeLog (null, LAST_CHANGE_NS);
+
+        log.log_with_channel ("Mute", this.mute ? "1" : "0", "Master");
+        log.log_with_channel ("Volume", this.volume.to_string (), "Master");
+
+        value.init (typeof (string));
+        value.set_string (log.finish ());
+    }
+
+    private MediaPlayer get_player () {
+        var plugin = this.root_device.resource_factory as MediaRendererPlugin;
+
+        return plugin.get_player ();
+    }
+
+    // Error out if InstanceID is not 0
+    private bool check_instance_id (ServiceAction action) {
+        uint instance_id;
+
+        action.get ("InstanceID", typeof (uint), out instance_id);
+        if (instance_id != 0) {
+            action.return_error (702, _("Invalid InstanceID"));
+
+            return false;
+        }
+
+        return true;
+    }
+
+    private void list_presets_cb (Service             service,
+                                  owned ServiceAction action) {
+        if (!this.check_instance_id (action)) {
+            return;
+        }
+
+        action.set ("CurrentPresetNameList",
+                        typeof (string),
+                        this.preset_name_list);
+
+        action.return ();
+    }
+
+    private void select_preset_cb (Service             service,
+                                   owned ServiceAction action) {
+        if (!this.check_instance_id (action)) {
+            return;
+        }
+
+        string preset_name;
+
+        action.get ("PresetName", typeof (string), out preset_name);
+        if (preset_name != "") {
+            action.return_error (701, _("Invalid Name"));
+
+            return;
+        }
+
+        action.return ();
+    }
+
+    // Error out if 'Channel' is not 'Master'
+    private bool check_channel (ServiceAction action) {
+        string channel;
+
+        action.get ("Channel", typeof (string), out channel);
+        if (channel != "Master") {
+            action.return_error (501, _("Action Failed"));
+
+            return false;
+        }
+
+        return true;
+    }
+
+    private void get_mute_cb (Service             service,
+                              owned ServiceAction action) {
+        if (!this.check_instance_id (action)) {
+            return;
+        }
+
+        if (!check_channel (action)) {
+            return;
+        }
+
+        action.set ("CurrentMute", typeof (bool), this.mute);
+
+        action.return ();
+    }
+
+    private void set_mute_cb (Service             service,
+                              owned ServiceAction action) {
+        if (!this.check_instance_id (action)) {
+            return;
+        }
+
+        if (!check_channel (action)) {
+            return;
+        }
+
+        bool mute;
+
+        action.get ("DesiredMute", typeof (bool), out mute);
+
+        this.mute = mute;
+
+        action.return ();
+    }
+
+    private void get_volume_cb (Service             service,
+                                owned ServiceAction action) {
+        if (!this.check_instance_id (action)) {
+            return;
+        }
+
+        if (!check_channel (action)) {
+            return;
+        }
+
+        action.set ("CurrentVolume", typeof (uint), this.volume);
+
+        action.return ();
+    }
+
+    private void set_volume_cb (Service             service,
+                                owned ServiceAction action) {
+        if (!this.check_instance_id (action)) {
+            return;
+        }
+
+        if (!check_channel (action)) {
+            return;
+        }
+
+        uint volume;
+
+        action.get ("DesiredVolume", typeof (uint), out volume);
+        if (volume > 100) {
+            action.return_error (501, _("Action Failed"));
+
+            return;
+        }
+
+        this.volume = volume;
+
+        action.return ();
+    }
+}