From d3d96826aca44af2e223439a173051dec4875141 Mon Sep 17 00:00:00 2001
From: Marco Martin <notmart@gmail.com>
Date: Mon, 17 Sep 2012 16:27:06 +0200
Subject: [PATCH] pay attention to not emit 2 signals per event

---
 .../qtextracomponents/mouseeventlistener.cpp  | 21 ++++++++++++++++++-
 .../qtextracomponents/mouseeventlistener.h    |  2 ++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/declarativeimports/qtextracomponents/mouseeventlistener.cpp b/declarativeimports/qtextracomponents/mouseeventlistener.cpp
index 5e2149712..81de47413 100644
--- a/declarativeimports/qtextracomponents/mouseeventlistener.cpp
+++ b/declarativeimports/qtextracomponents/mouseeventlistener.cpp
@@ -28,7 +28,8 @@
 MouseEventListener::MouseEventListener(QDeclarativeItem *parent)
     : QDeclarativeItem(parent),
     m_pressed(false),
-    m_pressAndHoldEvent(0)
+    m_pressAndHoldEvent(0),
+    m_lastEvent(0)
 {
     qmlRegisterType<KDeclarativeMouseEvent>();
     qmlRegisterType<KDeclarativeWheelEvent>();
@@ -43,6 +44,10 @@ MouseEventListener::~MouseEventListener()
 
 void MouseEventListener::mousePressEvent(QGraphicsSceneMouseEvent *me)
 {
+    if (m_lastEvent == me) {
+        return;
+    }
+
     //FIXME: when a popup window is visible: a click anywhere hides it: but the old qgraphicswidget will continue to think it's under the mouse
     //doesn't seem to be any good way to properly reset this.
     //this msolution will still caused a missed click after the popup is gone, but gets the situation unblocked.
@@ -63,12 +68,20 @@ void MouseEventListener::mousePressEvent(QGraphicsSceneMouseEvent *me)
 
 void MouseEventListener::mouseMoveEvent(QGraphicsSceneMouseEvent *me)
 {
+    if (m_lastEvent == me) {
+        return;
+    }
+
     KDeclarativeMouseEvent dme(me->pos().x(), me->pos().y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
     emit positionChanged(&dme);
 }
 
 void MouseEventListener::mouseReleaseEvent(QGraphicsSceneMouseEvent *me)
 {
+    if (m_lastEvent == me) {
+        return;
+    }
+
     KDeclarativeMouseEvent dme(me->pos().x(), me->pos().y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
     m_pressed = false;
     emit released(&dme);
@@ -76,6 +89,10 @@ void MouseEventListener::mouseReleaseEvent(QGraphicsSceneMouseEvent *me)
 
 void MouseEventListener::wheelEvent(QGraphicsSceneWheelEvent *we)
 {
+    if (m_lastEvent == we) {
+        return;
+    }
+
     KDeclarativeWheelEvent dwe(we->pos(), we->screenPos(), we->delta(), we->buttons(), we->modifiers(), we->orientation());
     emit wheelMoved(&dwe);
 }
@@ -98,6 +115,8 @@ bool MouseEventListener::sceneEventFilter(QGraphicsItem *item, QEvent *event)
         return false;
     }
 
+    m_lastEvent = event;
+
     switch (event->type()) {
     case QEvent::GraphicsSceneMousePress: {
         QGraphicsSceneMouseEvent *me = static_cast<QGraphicsSceneMouseEvent *>(event);
diff --git a/declarativeimports/qtextracomponents/mouseeventlistener.h b/declarativeimports/qtextracomponents/mouseeventlistener.h
index 8dc17eb83..9f1ee513f 100644
--- a/declarativeimports/qtextracomponents/mouseeventlistener.h
+++ b/declarativeimports/qtextracomponents/mouseeventlistener.h
@@ -148,6 +148,8 @@ private:
     bool m_pressed;
     KDeclarativeMouseEvent* m_pressAndHoldEvent;
     QPointF m_pressAndHoldPosition;
+    //Important: used only for comparison. If you will ever need to access this pointer, make it a QWekapointer
+    QEvent *m_lastEvent;
 };
 
 #endif