effecst: disable launch feedback effect if cursor is hidden

Gets annoying with touch

src/effects.cpp

@@ -1717,6 +1717,11 @@ void EffectsHandlerImpl::renderScreen(EffectScreen *screen)
     scene()->paintScreen(output, Compositor::self()->windowsToRender());
 }
 
+bool EffectsHandlerImpl::isCursorHidden() const
+{
+    return Cursors::self()->isCursorHidden();
+}
+
 //****************************************
 // EffectScreenImpl
 //****************************************

src/effects.h

@@ -264,6 +264,7 @@ public:
     EffectScreen *findScreen(const QString &name) const override;
     EffectScreen *findScreen(int screenId) const override;
     void renderScreen(EffectScreen *screen) override;
+    bool isCursorHidden() const override;
 
 public Q_SLOTS:
     void slotCurrentTabAboutToChange(EffectWindow* from, EffectWindow* to);

src/effects/startupfeedback/startupfeedback.cpp

@@ -175,6 +175,9 @@ void StartupFeedbackEffect::prePaintScreen(ScreenPrePaintData& data, std::chrono
     }
     m_lastPresentTime = presentTime;
 
+    if (m_active && effects->isCursorHidden()) {
+        stop();
+    }
     if (m_active) {
         // need the unclipped version
         switch(m_type) {
@@ -289,7 +292,7 @@ void StartupFeedbackEffect::gotStartupChange(const QString &id, const QIcon &ico
 
 void StartupFeedbackEffect::start(const QIcon &icon)
 {
-    if (m_type == NoFeedback || m_splashVisible)
+    if (m_type == NoFeedback || m_splashVisible || effects->isCursorHidden())
         return;
     if (!m_active)
         effects->startMousePolling();

src/libkwineffects/kwineffects.h

@@ -1262,6 +1262,11 @@ public:
      */
     virtual void showCursor() = 0;
 
+    /**
+     * @returns Whether or not the cursor is currently hidden
+     */
+    virtual bool isCursorHidden() const = 0;
+
     /**
      * Starts an interactive window selection process.
      *