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-rw-r--r--src/media-player.vala297
1 files changed, 23 insertions, 274 deletions
diff --git a/src/media-player.vala b/src/media-player.vala
index da68ac1..4d4aef3 100644
--- a/src/media-player.vala
+++ b/src/media-player.vala
@@ -1,5 +1,5 @@
/*
- * Copyright 2013 Canonical Ltd.
+ * Copyright © 2014 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -14,60 +14,18 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
- * Lars Uebernickel <lars.uebernickel@canonical.com>
+ * Ted Gould <ted@canonical.com>
*/
-/**
- * MediaPlayer represents an MRPIS-capable media player.
- */
-public class MediaPlayer: Object {
-
- public MediaPlayer (DesktopAppInfo appinfo) {
- this.appinfo = appinfo;
- }
-
- /** Desktop id of the player */
- public string id {
- get {
- return this.appinfo.get_id ();
- }
- }
+public abstract class MediaPlayer : Object {
+ public virtual string id { get { not_implemented(); return ""; } }
+ public virtual string name { get { not_implemented(); return ""; } }
+ public virtual string state { get { not_implemented(); return ""; } set { }}
+ public virtual Icon? icon { get { not_implemented(); return null; } }
+ public virtual string dbus_name { get { not_implemented(); return ""; } }
- /** Display name of the player */
- public string name {
- get {
- return this.appinfo.get_name ();
- }
- }
-
- /** Application icon of the player */
- public Icon icon {
- get {
- return this.appinfo.get_icon ();
- }
- }
-
- /**
- * True if an instance of the player is currently running.
- *
- * See also: attach(), detach()
- */
- public bool is_running {
- get {
- return this.proxy != null;
- }
- }
-
- /** Name of the player on the bus, if an instance is currently running */
- public string dbus_name {
- get {
- return this._dbus_name;
- }
- }
-
- public string state {
- get; private set; default = "Paused";
- }
+ public virtual bool is_running { get { not_implemented(); return false; } }
+ public virtual bool can_raise { get { not_implemented(); return false; } }
public class Track : Object {
public string artist { get; construct; }
@@ -80,233 +38,24 @@ public class MediaPlayer: Object {
}
}
- public Track current_track {
- get; set;
- }
-
- public bool can_raise {
- get {
- return this.root != null ? this.root.CanRaise : true;
- }
+ public virtual Track? current_track {
+ get { not_implemented(); return null; }
+ set { not_implemented(); }
}
public signal void playlists_changed ();
- /**
- * Attach this object to a process of the associated media player. The player must own @dbus_name and
- * implement the org.mpris.MediaPlayer2.Player interface.
- *
- * Only one player can be attached at any given time. Use detach() to detach a player.
- *
- * This method does not block. If it is successful, "is-running" will be set to %TRUE.
- */
- public void attach (MprisRoot root, string dbus_name) {
- return_if_fail (this._dbus_name == null && this.proxy == null);
-
- this.root = root;
- this.notify_property ("can-raise");
-
- this._dbus_name = dbus_name;
- Bus.get_proxy.begin<MprisPlayer> (BusType.SESSION, dbus_name, "/org/mpris/MediaPlayer2",
- DBusProxyFlags.GET_INVALIDATED_PROPERTIES, null, got_proxy);
- Bus.get_proxy.begin<MprisPlaylists> (BusType.SESSION, dbus_name, "/org/mpris/MediaPlayer2",
- DBusProxyFlags.GET_INVALIDATED_PROPERTIES, null, got_playlists_proxy);
- }
-
- /**
- * Detach this object from a process running the associated media player.
- *
- * See also: attach()
- */
- public void detach () {
- this.root = null;
- this.proxy = null;
- this._dbus_name = null;
- this.notify_property ("is-running");
- this.notify_property ("can-raise");
- this.state = "Paused";
- this.current_track = null;
- }
+ public abstract void activate ();
+ public abstract void play_pause ();
+ public abstract void next ();
+ public abstract void previous ();
- /**
- * Activate the associated media player.
- *
- * Note: this will _not_ call attach(), because it doesn't know on which dbus-name the player will appear.
- * Use attach() to attach this object to a running instance of the player.
- */
- public void activate () {
- try {
- if (this.proxy == null) {
- this.appinfo.launch (null, null);
- this.state = "Launching";
- }
- else if (this.root != null && this.root.CanRaise) {
- this.root.Raise ();
- }
- }
- catch (Error e) {
- warning ("unable to activate %s: %s", appinfo.get_name (), e.message);
- }
- }
-
- /**
- * Toggles playing status.
- */
- public void play_pause () {
- if (this.proxy != null) {
- this.proxy.PlayPause.begin ();
- }
- else if (this.state != "Launching") {
- this.play_when_attached = true;
- this.activate ();
- }
- }
-
- /**
- * Skips to the next track.
- */
- public void next () {
- if (this.proxy != null)
- this.proxy.Next.begin ();
- }
-
- /**
- * Skips to the previous track.
- */
- public void previous () {
- if (this.proxy != null)
- this.proxy.Previous.begin ();
- }
+ public abstract uint get_n_playlists();
+ public abstract string get_playlist_id (int index);
+ public abstract string get_playlist_name (int index);
+ public abstract void activate_playlist_by_name (string playlist);
- public uint get_n_playlists () {
- return this.playlists != null ? this.playlists.length : 0;
- }
-
- public string get_playlist_id (int index) {
- return_val_if_fail (index < this.playlists.length, "");
- return this.playlists[index].path;
- }
-
- public string get_playlist_name (int index) {
- return_val_if_fail (index < this.playlists.length, "");
- return this.playlists[index].name;
- }
-
- public void activate_playlist_by_name (string name) {
- if (this.playlists_proxy != null)
- this.playlists_proxy.ActivatePlaylist.begin (new ObjectPath (name));
- }
-
- DesktopAppInfo appinfo;
- MprisPlayer? proxy;
- MprisPlaylists ?playlists_proxy;
- string _dbus_name;
- bool play_when_attached = false;
- MprisRoot root;
- PlaylistDetails[] playlists = null;
-
- void got_proxy (Object? obj, AsyncResult res) {
- try {
- this.proxy = Bus.get_proxy.end (res);
-
- /* Connecting to GDBusProxy's "g-properties-changed" signal here, because vala's dbus objects don't
- * emit notify signals */
- var gproxy = this.proxy as DBusProxy;
- gproxy.g_properties_changed.connect (this.proxy_properties_changed);
-
- this.notify_property ("is-running");
- this.state = this.proxy.PlaybackStatus;
- this.update_current_track (gproxy.get_cached_property ("Metadata"));
-
- if (this.play_when_attached) {
- /* wait a little before calling PlayPause, some players need some time to
- set themselves up */
- Timeout.add (1000, () => { proxy.PlayPause.begin (); return false; } );
- this.play_when_attached = false;
- }
- }
- catch (Error e) {
- this._dbus_name = null;
- warning ("unable to attach to media player: %s", e.message);
- }
- }
-
- void fetch_playlists () {
- /* The proxy is created even when the interface is not supported. GDBusProxy will
- return 0 for the PlaylistCount property in that case. */
- if (this.playlists_proxy != null && this.playlists_proxy.PlaylistCount > 0) {
- this.playlists_proxy.GetPlaylists.begin (0, 100, "Alphabetical", false, (obj, res) => {
- try {
- this.playlists = playlists_proxy.GetPlaylists.end (res);
- this.playlists_changed ();
- }
- catch (Error e) {
- warning ("could not fetch playlists: %s", e.message);
- this.playlists = null;
- }
- });
- }
- else {
- this.playlists = null;
- this.playlists_changed ();
- }
- }
-
- void got_playlists_proxy (Object? obj, AsyncResult res) {
- try {
- this.playlists_proxy = Bus.get_proxy.end (res);
-
- var gproxy = this.proxy as DBusProxy;
- gproxy.g_properties_changed.connect (this.playlists_proxy_properties_changed);
- }
- catch (Error e) {
- warning ("unable to create mpris plalists proxy: %s", e.message);
- return;
- }
-
- Timeout.add (500, () => { this.fetch_playlists (); return false; } );
- }
-
- /* some players (e.g. Spotify) don't follow the spec closely and pass single strings in metadata fields
- * where an array of string is expected */
- static string sanitize_metadata_value (Variant? v) {
- if (v == null)
- return "";
- else if (v.is_of_type (VariantType.STRING))
- return v.get_string ();
- else if (v.is_of_type (VariantType.STRING_ARRAY))
- return string.joinv (",", v.get_strv ());
-
- warn_if_reached ();
- return "";
- }
-
- void proxy_properties_changed (DBusProxy proxy, Variant changed_properties, string[] invalidated_properties) {
- if (changed_properties.lookup ("PlaybackStatus", "s", null)) {
- this.state = this.proxy.PlaybackStatus;
- }
-
- var metadata = changed_properties.lookup_value ("Metadata", new VariantType ("a{sv}"));
- if (metadata != null)
- this.update_current_track (metadata);
- }
-
- void playlists_proxy_properties_changed (DBusProxy proxy, Variant changed_properties, string[] invalidated_properties) {
- if (changed_properties.lookup ("PlaylistCount", "u", null))
- this.fetch_playlists ();
- }
-
- void update_current_track (Variant metadata) {
- if (metadata != null) {
- this.current_track = new Track (
- sanitize_metadata_value (metadata.lookup_value ("xesam:artist", null)),
- sanitize_metadata_value (metadata.lookup_value ("xesam:title", null)),
- sanitize_metadata_value (metadata.lookup_value ("xesam:album", null)),
- sanitize_metadata_value (metadata.lookup_value ("mpris:artUrl", null))
- );
- }
- else {
- this.current_track = null;
- }
+ private void not_implemented () {
+ warning("Property not implemented");
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 06:42:12 +0000