kmediaplayer: supress screen power management while playing

feels like adding cherry on top, I want to release soon tho..

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>

kmediaplayer/CMakeLists.txt

@@ -9,6 +9,7 @@ target_link_libraries(kmediaplayer
     KDE4::kfile
     KDE4::kcmutils
     KDE4::kmediaplayer
+    KDE4::solid
 )
 
 # part

kmediaplayer/kmediawindow.cpp

@@ -30,6 +30,7 @@
 #include <KStatusBar>
 #include <KMessageBox>
 #include <KConfigGroup>
+#include <Solid/PowerManagement>
 #include <QApplication>
 #include <QMenuBar>
 
@@ -42,12 +43,16 @@ KMediaWindow::KMediaWindow(QWidget *parent, Qt::WindowFlags flags)
     m_recentfiles(nullptr),
     m_menu(nullptr),
     m_currenttime(float(0.0)),
-    m_playing(true)
+    m_playing(true),
+    m_inhibition(0)
 {
     m_config = new KConfig("kmediaplayerrc", KConfig::SimpleConfig);
 
     m_player = new KMediaWidget(this, KMediaWidget::AllOptions);
     m_player->player()->setPlayerID("kmediaplayer");
+    connect(m_player->player(), SIGNAL(loaded()), this, SLOT(slotInhibit()));
+    connect(m_player->player(), SIGNAL(paused(bool)), this, SLOT(slotMaybeInhibit(bool)));
+    connect(m_player->player(), SIGNAL(finished()), this, SLOT(slotUninhibit()));
 
     setCentralWidget(m_player);
 
@@ -115,7 +120,7 @@ KMediaWindow::~KMediaWindow()
     KConfigGroup firstrungroup(m_config, "KMediaPlayer");
     firstrungroup.writeEntry("firstrun", false);
 
-    m_player->deleteLater();
+    delete m_player;
     m_recentfiles->deleteLater();
     m_menu->deleteLater();
     delete m_config;
@@ -193,10 +198,43 @@ void KMediaWindow::slotMenu(QPoint position)
 
 void KMediaWindow::slotQuit()
 {
+    slotUninhibit();
+
     KMediaWindow::close();
     qApp->quit();
 }
 
+void KMediaWindow::slotInhibit()
+{
+    if (!m_inhibition) {
+        m_inhibition = Solid::PowerManagement::beginSuppressingScreenPowerManagement(QString::fromLatin1("KMediaPlayer playing"));
+        if (!m_inhibition) {
+            kWarning() << "Could not inhibit";
+        }
+    }
+}
+
+void KMediaWindow::slotMaybeInhibit(bool paused)
+{
+    if (paused) {
+        slotUninhibit();
+    } else {
+        slotInhibit();
+    }
+}
+
+void KMediaWindow::slotUninhibit()
+{
+    if (m_inhibition) {
+        const bool diduninhibit = Solid::PowerManagement::stopSuppressingScreenPowerManagement(m_inhibition);
+        if (diduninhibit) {
+            m_inhibition = 0;
+        } else {
+            kWarning() << "Could not uninhibit";
+        }
+    }
+}
+
 void KMediaWindow::slotDelayedRestore()
 {
     disconnect(m_player->player(), SIGNAL(loaded()), this, SLOT(slotDelayedRestore()));

kmediaplayer/kmediawindow.h

@@ -43,6 +43,9 @@ public slots:
     void slotQuit();
 
 private slots:
+    void slotInhibit();
+    void slotMaybeInhibit(bool paused);
+    void slotUninhibit();
     void slotDelayedRestore();
 
 protected:
@@ -57,6 +60,7 @@ private:
     QMenu *m_menu;
     float m_currenttime;
     bool m_playing;
+    int m_inhibition;
 };
 
 #endif // KMEDIAWINDOW_H