+ /**
+ * Synchronizes the presence of our listener for window resize events. This method
+ * should be called whenever this status might change.
+ * @private
+ */
+ syncMonitorWindowResize: function () {
+ var me = this,
+ currentlyMonitoring = me._monitoringResize,
+ // all the states where we should be listening to window resize:
+ yes = me.monitorResize || me.constrain || me.constrainHeader || me.maximized,
+ // all the states where we veto this:
+ veto = me.hidden || me.destroying || me.isDestroyed;
+
+ if (yes && !veto) {
+ // we should be listening...
+ if (!currentlyMonitoring) {
+ // but we aren't, so set it up
+ Ext.EventManager.onWindowResize(me.onWindowResize, me);
+ me._monitoringResize = true;
+ }
+ } else if (currentlyMonitoring) {
+ // we should not be listening, but we are, so tear it down
+ Ext.EventManager.removeResizeListener(me.onWindowResize, me);
+ me._monitoringResize = false;
+ }
+ },
+