touch: Prevent multiple page pushes at the same time

touch/Dragging.qml

@@ -39,13 +39,16 @@ MouseArea {
     }
 
     onPressedChanged: {
+        if (pgst.loadPageInProgress) {
+            return;
+        }
+
         if (pressed) {
             dragging.stacking.stopAllAnimations();
         } else {
             if (hasPull && parent.x < -parent.width / 4 + 10) {
                 pulled();
                 parent.x = -parent.width / 4;
-                //dragging.stacking.fadeInAgain();
             } else if (parent.x > parent.width / 3) {
                 dragging.stacking.startFadeOut();
             } else {

touch/Main.qml

@@ -45,17 +45,26 @@ Item {
         children[index-1].opacity = x / width;
     }
 
+    property bool loadPageInProgress: false
+
     function loadPage(filename, properties) {
+        if (pgst.loadPageInProgress) {
+            console.log('ignoring loadPage request while load in progress');
+            return;
+        }
+
         var component = Qt.createComponent(filename);
         if (component.status != Component.Ready) {
             console.log('Error loading ' + filename + ':' +
                 component.errorString());
         }
+
         if (properties === undefined) {
-            component.createObject(pgst);
-        } else {
-            component.createObject(pgst, properties);
+            properties = {};
         }
+
+        pgst.loadPageInProgress = true;
+        component.createObject(pgst, properties);
     }
 
     PBusyIndicator {

touch/Stacking.qml

@@ -31,6 +31,10 @@ Item {
         to: 0
         duration: 500
         easing.type: Easing.OutCubic
+
+        onStopped: {
+            pgst.loadPageInProgress = false;
+        }
     }
 
     PropertyAnimation {