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+/*
+ * Copyright 2013 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
+ * the Free Software Foundation; version 3.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ * Lars Uebernickel <lars.uebernickel@canonical.com>
+ */
+
+/* Icon.serialize() is not yet in gio-2.0.vapi; remove this when it is */
+extern Variant? g_icon_serialize (Icon icon);
+
+class SoundMenu: Object
+{
+ public SoundMenu (string settings_action) {
+ /* A sound menu always has at least two sections: the volume section (this.volume_section)
+ * at the start of the menu, and the settings section at the end. Between those two,
+ * it has a dynamic amount of player sections, one for each registered player.
+ */
+
+ this.volume_section = new Menu ();
+ volume_section.append (_("Mute"), "indicator.mute");
+ volume_section.append_item (this.create_slider_menu_item ("indicator.volume", 0.0, 1.0, 0.01,
+ "audio-volume-low-zero-panel",
+ "audio-volume-high-panel"));
+
+ this.menu = new Menu ();
+ this.menu.append_section (null, volume_section);
+ this.menu.append (_("Sound Settingsā€¦"), settings_action);
+
+ var root_item = new MenuItem (null, "indicator.root");
+ root_item.set_attribute ("x-canonical-type", "s", "com.canonical.indicator.root");
+ root_item.set_submenu (this.menu);
+
+ this.root = new Menu ();
+ root.append_item (root_item);
+ }
+
+ public void export (DBusConnection connection, string object_path) {
+ try {
+ connection.export_menu_model (object_path, this.root);
+ } catch (Error e) {
+ critical ("%s", e.message);
+ }
+ }
+
+ public bool show_mic_volume {
+ get {
+ return this.volume_section.get_n_items () == 3;
+ }
+ set {
+ if (value && this.volume_section.get_n_items () < 3) {
+ var slider = this.create_slider_menu_item ("indicator.mic-volume", 0.0, 1.0, 0.01,
+ "audio-input-microphone-low-zero-panel",
+ "audio-input-microphone-high-panel");
+ volume_section.append_item (slider);
+ }
+ else if (!value && this.volume_section.get_n_items () > 2) {
+ this.volume_section.remove (2);
+ }
+ }
+ }
+
+ public void add_player (MediaPlayer player) {
+ /* Add new players to the end of the player sections, just before the settings */
+ var player_item = new MenuItem (player.name, "indicator." + player.id);
+ player_item.set_attribute ("x-canonical-type", "s", "com.canonical.unity.media-player");
+ player_item.set_attribute_value ("icon", g_icon_serialize (player.icon));
+
+ var playback_item = new MenuItem (null, null);
+ playback_item.set_attribute ("x-canonical-type", "s", "com.canonical.unity.playback-item");
+ playback_item.set_attribute ("x-canonical-play-action", "s", "indicator.play." + player.id);
+ playback_item.set_attribute ("x-canonical-next-action", "s", "indicator.next." + player.id);
+ playback_item.set_attribute ("x-canonical-previous-action", "s", "indicator.previous." + player.id);
+
+ var section = new Menu ();
+ section.append_item (player_item);
+ section.append_item (playback_item);
+
+ player.playlists_changed.connect (this.update_playlists);
+ player.notify["is-running"].connect ( () => this.update_playlists (player) );
+ update_playlists (player);
+
+ this.menu.insert_section (this.menu.get_n_items () -1, null, section);
+ }
+
+ public void remove_player (MediaPlayer player) {
+ int index = this.find_player_section (player);
+ if (index >= 0)
+ this.menu.remove (index);
+ }
+
+ Menu root;
+ Menu menu;
+ Menu volume_section;
+
+ /* returns the position in this.menu of the section that's associated with @player */
+ int find_player_section (MediaPlayer player) {
+ string action_name = @"indicator.$(player.id)";
+ int n = this.menu.get_n_items () -1;
+ for (int i = 1; i < n; i++) {
+ var section = this.menu.get_item_link (i, Menu.LINK_SECTION);
+ string action;
+ section.get_item_attribute (0, "action", "s", out action);
+ if (action == action_name)
+ return i;
+ }
+
+ return -1;
+ }
+
+ void update_playlists (MediaPlayer player) {
+ int index = find_player_section (player);
+ if (index < 0)
+ return;
+
+ var player_section = this.menu.get_item_link (index, Menu.LINK_SECTION) as Menu;
+
+ /* if a section has three items, the playlists menu is in it */
+ if (player_section.get_n_items () == 3)
+ player_section.remove (2);
+
+ if (!player.is_running)
+ return;
+
+ var count = player.get_n_playlists ();
+ if (count == 0)
+ return;
+
+ var playlists_section = new Menu ();
+ for (int i = 0; i < count; i++) {
+ var playlist_id = player.get_playlist_id (i);
+ playlists_section.append (player.get_playlist_name (i),
+ @"indicator.play-playlist.$(player.id)::$playlist_id");
+
+ }
+
+ var submenu = new Menu ();
+ submenu.append_section (null, playlists_section);
+ player_section.append_submenu ("Choose Playlist", submenu);
+ }
+
+ MenuItem create_slider_menu_item (string action, double min, double max, double step, string min_icon_name, string max_icon_name) {
+ var min_icon = new ThemedIcon.with_default_fallbacks (min_icon_name);
+ var max_icon = new ThemedIcon.with_default_fallbacks (max_icon_name);
+
+ var slider = new MenuItem (null, action);
+ slider.set_attribute ("x-canonical-type", "s", "com.canonical.unity.slider");
+ slider.set_attribute_value ("min-icon", g_icon_serialize (min_icon));
+ slider.set_attribute_value ("max-icon", g_icon_serialize (max_icon));
+ slider.set_attribute ("min-value", "d", min);
+ slider.set_attribute ("max-value", "d", max);
+ slider.set_attribute ("step", "d", step);
+
+ return slider;
+ }
+}