[Backend+CMake] Added discord rich presence support.

.gitignore

@@ -17,4 +17,5 @@ sffmpeg
 *.jsc
 src_qml*
 qmlcache*
-qrc_src*
+qrc_src*
+discord-rpc

CMakeLists.txt

@@ -7,6 +7,8 @@ set(CMAKE_AUTOMOC ON)
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror -fstrict-aliasing -Wno-deprecated-declarations -Wno-unused-variable")
 
 option(DEVELOP "Enable runtime QML reloading for developing." OFF)
+option(DISCORD "Enable Discord SDK." ON)
+
 
 find_package(Qt5Core REQUIRED)
 find_package(Qt5Gui REQUIRED)
@@ -53,10 +55,20 @@ add_definitions(-DQRC_SOURCE_PATH="${PROJECT_SOURCE_DIR}/src/qml")
 add_definitions(-DQT_QML_DEBUG)
 endif(DEVELOP)
 
+if(DISCORD)
+add_definitions(-DDISCORD)
+execute_process(
+    COMMAND git clone --depth 1 https://github.com/discordapp/discord-rpc
+    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+)
+add_subdirectory(discord-rpc)
+INCLUDE_DIRECTORIES(discord-rpc/include)
+endif(DISCORD)
+
 add_executable(KittehPlayer ${SOURCES} ${qml_QRC})
 
 # Use the Qml/Quick modules from Qt 5.
-target_link_libraries(KittehPlayer ${MPV_LIBRARIES} ${X11_LIBRARIES} ${Xext_LIBRARIES} Qt5::X11Extras)
+target_link_libraries(KittehPlayer ${MPV_LIBRARIES} ${X11_LIBRARIES} ${Xext_LIBRARIES} Qt5::X11Extras discord-rpc)
 
 qt5_use_modules(KittehPlayer Qml Quick Core Gui Widgets X11Extras)
 

src/MpvPlayerBackend.cpp

@@ -12,6 +12,11 @@
 #include <QSequentialIterable>
 #include <math.h>
 
+#ifdef DISCORD
+#include "discord_rpc.h"
+#endif
+
+
 namespace {
 
 void wakeup(void* ctx)
@@ -101,6 +106,12 @@ MpvPlayerBackend::MpvPlayerBackend(QQuickItem* parent)
   if (!mpv)
     throw std::runtime_error("could not create mpv context");
 
+  #ifdef DISCORD
+    DiscordEventHandlers handlers;
+    memset(&handlers, 0, sizeof(handlers));
+    Discord_Initialize("511220330996432896", &handlers, 1, NULL);
+   #endif
+    
   mpv_set_option_string(mpv, "terminal", "yes");
   mpv_set_option_string(mpv, "msg-level", "all=v");
 
@@ -181,6 +192,22 @@ void MpvPlayerBackend::launchAboutQt()
   qapp->aboutQt();
 }
 
+#ifdef DISCORD
+void MpvPlayerBackend::updateDiscord()
+{
+        char buffer[256];
+        DiscordRichPresence discordPresence;
+        memset(&discordPresence, 0, sizeof(discordPresence));
+        discordPresence.state = getProperty("pause").toBool() ? "Paused" : "Playing";
+        sprintf(buffer, "Currently Playing: Video %s", getProperty("media-title").toString().toUtf8().constData());
+        discordPresence.details = buffer;
+        discordPresence.startTimestamp = time(0);
+        discordPresence.endTimestamp = time(0) + (getProperty("duration").toFloat() - getProperty("time-pos").toFloat());
+        discordPresence.instance = 0;
+        Discord_UpdatePresence(&discordPresence);
+}
+#endif
+
 QVariant MpvPlayerBackend::getaudioDevices() const
 {
   QVariant drivers = getProperty("audio-device-list");
@@ -420,6 +447,9 @@ void MpvPlayerBackend::handle_mpv_event(mpv_event* event)
         if (prop->format == MPV_FORMAT_STRING) {
           char* title = *(char**)prop->data;
           findChild<QObject*>("titleLabel")->setProperty("text", title);
+        #ifdef DISCORD
+            updateDiscord();
+          #endif
         }
       } else if (strcmp(prop->name, "sub-text") == 0) {
         if (prop->format == MPV_FORMAT_STRING) {
@@ -439,6 +469,9 @@ void MpvPlayerBackend::handle_mpv_event(mpv_event* event)
       } else if (strcmp(prop->name, "pause") == 0) {
         qDebug() << prop->data;
         updatePlayPause(getProperty("pause"));
+          #ifdef DISCORD
+            updateDiscord();
+          #endif
       } else if (strcmp(prop->name, "tracks-menu") == 0) {
         QMetaObject::invokeMethod(findChild<QObject*>("menuBar"), "updateTracks");
       } else if (strcmp(prop->name, "audio-device-list") == 0) {

src/MpvPlayerBackend.h

@@ -29,6 +29,9 @@ public:
 
 public slots:
   void launchAboutQt();
+#ifdef DISCORD
+  void updateDiscord();
+#endif
   void togglePlayPause();
   void toggleMute();
   void nextAudioTrack();