Implement mimetype support reporting for MPRIS, start implementation of bulk of getters.
Implemented the following getters for MPRIS: - CanQuit - CanRaise - HasTrackList - Identity - DesktopEntry - SupportedUriSchemas - SupportedMimeTypes - Metadata - CanPlay / CanPause / CanSeek - CanControl - PlaybackStatus Implemented a koto_push_track_info_to_builder function that enables us to easily push KotoIndexedTrack as well as associated album and artist info to a GVariantBuilder for use in a GVariant for various getters. Implemented a koto_update_mpris_info_for_track function that emits a signal for PropertiesChanged + "Metadata" when our track info changes.
This commit is contained in:
Joshua Strobl
parent
b1f4460a2e
commit
07c3c00f1e
17 changed files with 734 additions and 69 deletions
357
src/playback/mpris.c
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357
src/playback/mpris.c
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/* mpris.c
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*
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* Copyright 2021 Joshua Strobl
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// Huge thanks to the GLib folks for providing an example server test
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#include <glib-2.0/glib.h>
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#include <glib-2.0/gio/gio.h>
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#include <gtk-4.0/gtk/gtk.h>
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#include "../db/cartographer.h"
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#include "../playlist/current.h"
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#include "../playlist/playlist.h"
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#include "mimes.h"
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#include "engine.h"
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extern KotoCartographer *koto_maps;
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extern KotoCurrentPlaylist *current_playlist;
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extern GtkApplication *app;
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extern GtkWindow *main_window;
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extern KotoPlaybackEngine *playback_engine;
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extern GList *supported_mimes;
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GDBusConnection *dbus_conn = NULL;
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guint mpris_bus_id = 0;
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GDBusNodeInfo *introspection_data = NULL;
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static const gchar introspection_xml[] =
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"<node>"
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" <interface name='org.mpris.MediaPlayer2'>"
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" <method name='Raise' />"
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" <method name='Quit' />"
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" <property type='b' name='CanQuit' access='read' />"
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" <property type='b' name='CanRaise' access='read' />"
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" <property type='b' name='HasTrackList' access='read' />"
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" <property type='s' name='Identity' access='read' />"
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" <property type='s' name='DesktopEntry' access='read' />"
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" <property type='as' name='SupportedUriSchemas' access='read' />"
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" <property type='as' name='SupportedMimeTypes' access='read' />"
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" </interface>"
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" <interface name='org.mpris.MediaPlayer2.Player'>"
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" <method name='Next' />"
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" <method name='Previous' />"
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" <method name='Pause' />"
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" <method name='PlayPause' />"
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" <method name='Stop' />"
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" <method name='Play' />"
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" <method name='Seek'>"
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" <arg type='x' name='offset' />"
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" </method>"
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" <method name='SetPosition'>"
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" <arg type='o' name='track_id' />"
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" <arg type='x' name='pos' />"
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" </method>"
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" <property type='s' name='PlaybackStatus' access='read' />"
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" <property type='s' name='LoopStatus' access='readwrite' />"
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" <property type='d' name='Rate' access='readwrite' />"
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" <property type='b' name='Shuffle' access='readwrite' />"
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" <property type='a{sv}' name='Metadata' access='read' />"
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" <property type='d' name='Volume' access='readwrite' />"
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" <property type='x' name='Position' access='read' />"
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" <property type='d' name='MinimumRate' access='read' />"
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" <property type='d' name='MaximumRate' access='read' />"
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" <property type='b' name='CanGoNext' access='read' />"
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" <property type='b' name='CanGoPrevious' access='read' />"
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" <property type='b' name='CanPlay' access='read' />"
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" <property type='b' name='CanPause' access='read' />"
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" <property type='b' name='CanSeek' access='read' />"
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" <property type='b' name='CanControl' access='read' />"
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" </interface>"
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"</node>";
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void handle_main_mpris_method_call(
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GDBusConnection *connection,
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const gchar *sender,
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const gchar *object_path,
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const gchar *interface_name,
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const gchar *method_name,
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GVariant *parameters,
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GDBusMethodInvocation *invocation,
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gpointer user_data
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) {
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if (g_strcmp0(interface_name, "org.mpris.MediaPlayer2") == 0) { // Root mediaplayer2 interface
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if (g_strcmp0(method_name, "Raise") == 0) { // Raise the window
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gtk_window_unminimize(main_window); // Ensure we unminimize the window
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gtk_window_present(main_window); // Present our main window
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return;
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}
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if (g_strcmp0(method_name, "Quit") == 0) { // Quit the application
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gtk_application_remove_window(app, main_window); // Remove the window, thereby closing the app
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return;
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}
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} else if (g_strcmp0(interface_name, "org.mpris.MediaPlayer2.koto") == 0) { // Root mediaplayer2 interface
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if (g_strcmp0(method_name, "Next") == 0) { // Next track
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koto_playback_engine_forwards(playback_engine);
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return;
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}
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if (g_strcmp0(method_name, "Previous") == 0) { // Previous track
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koto_playback_engine_backwards(playback_engine);
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return;
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}
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}
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}
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GVariant* handle_get_property(
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GDBusConnection *connection,
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const gchar *sender,
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const gchar *object_path,
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const gchar *interface_name,
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const gchar *property_name,
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GError **error,
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gpointer user_data
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) {
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GVariant *ret;
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ret = NULL;
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g_message("asking for %s", property_name);
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if (g_strcmp0(property_name, "CanQuit") == 0) { // If property is CanQuit
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ret = g_variant_new_boolean(TRUE); // Allow quitting. You can escape Hotel California for now.
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}
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if (g_strcmp0(property_name, "CanRaise") == 0) { // If property is CanRaise
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ret = g_variant_new_boolean(TRUE); // Allow raising.
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}
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if (g_strcmp0(property_name, "HasTrackList") == 0) { // If property is HasTrackList
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KotoPlaylist *playlist = koto_current_playlist_get_playlist(current_playlist);
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if (KOTO_IS_PLAYLIST(playlist)) {
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ret = g_variant_new_boolean(koto_playlist_get_length(playlist) > 0);
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} else { // Don't have a playlist
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ret = g_variant_new_boolean(FALSE);
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}
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}
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if (g_strcmp0(property_name, "Identity") == 0) { // Want identity
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ret = g_variant_new_string("Koto"); // Not Jason Bourne but close enough
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}
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if (g_strcmp0(property_name, "DesktopEntry") == 0) { // Desktop Entry
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ret = g_variant_new_string("com.github.joshstrobl.koto");
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}
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if (g_strcmp0(property_name, "SupportedUriSchemas") == 0) { // Supported URI Schemas
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GVariantBuilder *builder = g_variant_builder_new(G_VARIANT_TYPE("as")); // Array of strings
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g_variant_builder_add(builder, "s", "file");
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ret = g_variant_new("as", builder);
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g_variant_builder_unref(builder); // Unref builder since we no longer need it
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}
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if (g_strcmp0(property_name, "SupportedMimeTypes") == 0) { // Supported mimetypes
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GVariantBuilder *builder = g_variant_builder_new(G_VARIANT_TYPE("as")); // Array of strings
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GList *mimes;
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mimes = NULL;
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for (mimes = supported_mimes; mimes != NULL; mimes = mimes->next) { // For each mimetype
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g_variant_builder_add(builder, "s", mimes->data); // Add the mime as a string
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}
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ret = g_variant_new("as", builder);
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g_variant_builder_unref(builder);
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g_list_free(mimes);
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}
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if (g_strcmp0(property_name, "Metadata") == 0) { // Metadata
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GVariantBuilder *builder = g_variant_builder_new(G_VARIANT_TYPE_VARDICT);
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KotoIndexedTrack *current_track = koto_playback_engine_get_current_track(playback_engine);
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if (KOTO_IS_INDEXED_TRACK(current_track)) { // Currently playing a track
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koto_push_track_info_to_builder(builder, current_track);
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}
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ret = g_variant_builder_end(builder);
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}
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if (
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(g_strcmp0(property_name, "CanPlay") == 0) ||
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(g_strcmp0(property_name, "CanPause") == 0) ||
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(g_strcmp0(property_name, "CanSeek") == 0)
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) {
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KotoIndexedTrack *current_track = koto_playback_engine_get_current_track(playback_engine);
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ret = g_variant_new_boolean(KOTO_IS_INDEXED_TRACK(current_track));
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}
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if (g_strcmp0(property_name, "CanGoNext") == 0) { // Can Go Next
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// TODO: Add some actual logic here
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ret = g_variant_new_boolean(TRUE);
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}
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if (g_strcmp0(property_name, "CanGoPrevious") == 0) { // Can Go Previous
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// TODO: Add some actual logic here
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ret = g_variant_new_boolean(TRUE);
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}
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if (g_strcmp0(property_name, "CanControl") == 0){ // Can Control
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ret = g_variant_new_boolean(TRUE);
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}
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if (g_strcmp0(property_name, "PlaybackStatus") == 0) { // Get our playback status
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GstState current_state = koto_playback_engine_get_state(playback_engine); // Get the current state
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if (current_state == GST_STATE_PLAYING) {
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ret = g_variant_new_string("Playing");
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} else if (current_state == GST_STATE_PAUSED) {
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ret = g_variant_new_string("Paused");
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} else {
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ret = g_variant_new_string("Stopped");
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}
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}
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return ret;
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}
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void koto_push_track_info_to_builder(GVariantBuilder *builder, KotoIndexedTrack *track) {
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if (!KOTO_IS_INDEXED_TRACK(track)) {
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return;
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}
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gchar *album_art_path = NULL;
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gchar *album_name = NULL;
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gchar *album_uuid = NULL;
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gchar *artist_uuid = NULL;
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gchar *artist_name = NULL;
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gchar *track_name = NULL;
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gchar *track_path = NULL;
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gchar *track_uuid = NULL;
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guint track_position = 0;
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guint track_disc = 0;
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g_object_get(track,
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"album-uuid", &album_uuid,
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"artist-uuid", &artist_uuid,
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"cd", &track_disc,
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"path", &track_path,
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"parsed-name", &track_name,
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"position", &track_position,
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"uuid", &track_uuid,
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NULL);
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KotoIndexedArtist *artist = koto_cartographer_get_artist_by_uuid(koto_maps, artist_uuid);
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KotoIndexedAlbum *album = koto_cartographer_get_album_by_uuid(koto_maps, album_uuid);
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g_object_get(album,
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"art-path", &album_art_path,
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"name", &album_name,
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NULL);
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g_object_get(artist,
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"name", &artist_name,
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NULL);
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g_variant_builder_add(builder, "{sv}", "mpris:trackid", g_variant_new_string(track_uuid));
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g_message("Art path: %s", album_art_path);
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if (g_strcmp0(album_art_path, "") != 0) { // Not empty
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album_art_path = g_strconcat("file://", album_art_path); // Prepend with file://
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g_variant_builder_add(builder, "{sv}", "mpris:artUrl", g_variant_new_string(album_art_path));
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}
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g_variant_builder_add(builder, "{sv}", "xesam:album", g_variant_new_string(album_name));
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if (g_strcmp0(artist_name, "") != 0) { // Got artist name
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GVariant *artist_name_variant;
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GVariantBuilder *artist_list_builder = g_variant_builder_new(G_VARIANT_TYPE("as"));
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g_variant_builder_add(artist_list_builder, "s", artist_name);
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artist_name_variant = g_variant_new("as", artist_list_builder);
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g_variant_builder_unref(artist_list_builder);
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g_variant_builder_add(builder, "{sv}", "xesam:artist", artist_name_variant);
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}
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g_variant_builder_add(builder, "{sv}", "xesam:discNumber", g_variant_new_uint64(track_disc));
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g_variant_builder_add(builder, "{sv}", "xesam:title", g_variant_new_string(track_name));
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g_variant_builder_add(builder, "{sv}", "xesam:url", g_variant_new_string(track_path));
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g_variant_builder_add(builder, "{sv}", "xesam:trackNumber", g_variant_new_uint64(track_position));
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}
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void koto_update_mpris_info_for_track(KotoIndexedTrack *track) {
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if (!KOTO_IS_INDEXED_TRACK(track)) {
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return;
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}
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GVariantBuilder *builder = g_variant_builder_new(G_VARIANT_TYPE_ARRAY);
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GVariantBuilder *metadata_builder = g_variant_builder_new(G_VARIANT_TYPE_VARDICT);
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GError *error = NULL;
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koto_push_track_info_to_builder(metadata_builder, track);
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GVariant *metadata_ret = g_variant_builder_end(metadata_builder);
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g_variant_builder_add(builder, "{sv}", "Metadata", metadata_ret);
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g_dbus_connection_emit_signal(dbus_conn,
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NULL,
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"/org/mpris/MediaPlayer2",
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"org.freedesktop.DBus.Properties",
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"PropertiesChanged",
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g_variant_new("(sa{sv}as)", "org.mpris.MediaPlayer2.Player", builder, NULL),
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&error
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);
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}
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static const GDBusInterfaceVTable main_mpris_interface_vtable = {
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handle_main_mpris_method_call,
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handle_get_property,
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};
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void on_main_mpris_bus_acquired(GDBusConnection *connection, const gchar *name, gpointer user_data) {
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dbus_conn = connection;
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g_dbus_connection_register_object(dbus_conn,
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"/org/mpris/MediaPlayer2",
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introspection_data->interfaces[0],
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&main_mpris_interface_vtable,
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NULL,
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NULL,
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NULL
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);
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g_dbus_connection_register_object(dbus_conn,
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"/org/mpris/MediaPlayer2",
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introspection_data->interfaces[1],
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&main_mpris_interface_vtable,
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NULL,
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NULL,
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NULL
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);
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}
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void setup_mpris_interfaces() {
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introspection_data = g_dbus_node_info_new_for_xml(introspection_xml, NULL);
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g_assert(introspection_data != NULL);
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mpris_bus_id = g_bus_own_name(G_BUS_TYPE_SESSION,
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"org.mpris.MediaPlayer2.koto",
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G_BUS_NAME_OWNER_FLAGS_NONE,
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on_main_mpris_bus_acquired,
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NULL,
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NULL,
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NULL,
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NULL
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);
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g_assert(mpris_bus_id > 0);
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}
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