added gnome hotkey plugin

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@4123 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 99 insertions, 0 deletions

diff --git a/src/plugins/General/gnomehotkey/mediakeys.cpp b/src/plugins/General/gnomehotkey/mediakeys.cpp
new file mode 100644
index 000000000..e3b775df2
--- /dev/null
+++ b/src/plugins/General/gnomehotkey/mediakeys.cpp
@@ -0,0 +1,99 @@
+#include <QDBusInterface>
+#include <QDBusConnection>
+#include <QDBusPendingCallWatcher>
+#include <QDBusConnectionInterface>
+#include <QVariantList>
+#include <QDateTime>
+#include <QCoreApplication>
+#include <qmmpui/mediaplayer.h>
+#include <qmmp/soundcore.h>
+#include "mediakeys.h"
+
+MediaKeys::MediaKeys(QObject *parent) :
+    QObject(parent)
+{
+    m_isRegistered = false;
+    m_interface = 0;
+    if(!QDBusConnection::sessionBus().interface()->isServiceRegistered("org.gnome.SettingsDaemon"))
+    {
+        qWarning("MediaKeys: gnome settings daemon is not running");
+        return;
+    }
+
+    m_interface = new QDBusInterface("org.gnome.SettingsDaemon",
+                                     "/org/gnome/SettingsDaemon/MediaKeys",
+                                     "org.gnome.SettingsDaemon.MediaKeys",
+                                     QDBusConnection::sessionBus(), this);
+
+    QDBusPendingReply<> reply = grabMediaPlayerKeys(QCoreApplication::applicationName(),
+                                                    QDateTime::currentDateTime().toTime_t());
+
+    QDBusPendingCallWatcher* watcher = new QDBusPendingCallWatcher(reply, this);
+    connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)), SLOT(onRegisterFinished(QDBusPendingCallWatcher*)));
+}
+
+MediaKeys::~MediaKeys()
+{
+    if(m_isRegistered && m_interface)
+    {
+        QDBusPendingReply<> reply = releaseMediaPlayerKeys(QCoreApplication::applicationName());
+        reply.waitForFinished();
+        qWarning("MediaKeys: unregistered");
+    }
+}
+
+QDBusPendingReply<> MediaKeys::grabMediaPlayerKeys(const QString &application, uint time)
+{
+    QVariantList argumentList;
+    argumentList << QVariant::fromValue(application) << QVariant::fromValue(time);
+    return m_interface->asyncCallWithArgumentList(QLatin1String("GrabMediaPlayerKeys"), argumentList);
+}
+
+QDBusPendingReply<> MediaKeys::releaseMediaPlayerKeys(const QString &application)
+{
+    QVariantList argumentList;
+    argumentList << QVariant::fromValue(application);
+    return m_interface->asyncCallWithArgumentList(QLatin1String("ReleaseMediaPlayerKeys"), argumentList);
+}
+
+void MediaKeys::onRegisterFinished(QDBusPendingCallWatcher *watcher)
+{
+    QDBusMessage reply = watcher->reply();
+    watcher->deleteLater();
+
+    if (reply.type() == QDBusMessage::ErrorMessage)
+    {
+        qWarning("MediaKeys: unable to grab media keys: [%s] - %s",
+                 qPrintable(reply.errorName()), qPrintable(reply.errorMessage()));
+        return;
+    }
+    m_interface->connection().connect("org.gnome.SettingsDaemon",
+                                      "/org/gnome/SettingsDaemon/MediaKeys",
+                                      "org.gnome.SettingsDaemon.MediaKeys",
+                                      "MediaPlayerKeyPressed", this,
+                                      SLOT(onKeyPressed(const QString&, const QString&)));
+    m_isRegistered = true;
+    qDebug("MediaKeys: registered");
+
+}
+
+void MediaKeys::onKeyPressed(const QString &in0, const QString &in1)
+{
+    if(in0 != QCoreApplication::applicationName())
+        return;
+    MediaPlayer *player = MediaPlayer::instance();
+    SoundCore *core = SoundCore::instance();
+    qDebug("MediaKeys: [%s] pressed", qPrintable(in1));
+    if(in1 == "Play")
+        player->play();
+    else if(in1 == "Pause")
+        core->pause();
+    else if(in1 == "Stop")
+        player->stop();
+    else if(in1 == "Previous")
+        player->previous();
+    else if(in1 == "Next")
+        player->next();
+    else
+        qWarning("MediaKeys: unknown media key pressed");
+}