Add onScroll[Up|Down] event

README.md

@@ -60,6 +60,8 @@ extension emit one of the following signals :
   * onRightDblClick
   * onEnter
   * onLeave
+  * onScrollUp
+  * onScrollDown
 
 Other signals are available when extension is activated/deactivated :
 

dbus.xml

@@ -18,7 +18,7 @@
   <method name="togglePopup">
     <arg type="s" direction="in" />
   </method>
-  <!-- Click events -->
+  <!-- Events -->
   <signal name="onClick">
     <arg type="s" direction="out" />
   </signal>
@@ -31,6 +31,12 @@
   <signal name="onRightDblClick">
     <arg type="s" direction="out" />
   </signal>
+  <signal name="onScrollUp">
+    <arg type="s" direction="out" />
+  </signal>
+  <signal name="onScrollDown">
+    <arg type="s" direction="out" />
+  </signal>
   <signal name="onEnter">
     <arg type="s" direction="out" />
   </signal>

extension.js

@@ -78,6 +78,7 @@ class MonitorWidget extends PanelMenu.Button {
         this.group = group;
 	this.fullname = this.name + '@' + this.group;
 	this.dbus = dbus;
+	this.signals = {}
 	
         if (item.hasOwnProperty('icon'))
 	{
@@ -114,6 +115,7 @@ class MonitorWidget extends PanelMenu.Button {
 	this.onClick = hash_get(item,  'on-click',  '');
 	this.onEnter = hash_get(item,  'on-enter',  '');
 	this.onLeave = hash_get(item,  'on-leave',  '');
+	this.onScroll = hash_get(item, 'on-scroll', '');
 
         let box = hash_get(item, 'box', 'center');
 
@@ -138,17 +140,23 @@ class MonitorWidget extends PanelMenu.Button {
     }
 
     _connectWidgetSignals(widget) {
-	widget.connect('enter-event', this._onEnter.bind(this));
+	this.signals[widget] = [];
-	widget.connect('leave-event', this._onLeave.bind(this));
+	let id;
+	id = widget.connect('enter-event', this._onEnter.bind(this));
+	this.signals[widget].push(id);
+	id = widget.connect('leave-event', this._onLeave.bind(this));
+	this.signals[widget].push(id);
+	id = widget.connect('scroll-event', this._onScroll.bind(this));
+	this.signals[widget].push(id);
 	widget.set_reactive(true);
-	widget.connect('button-release-event', Lang.bind(this, this._clicked));
+	id = widget.connect('button-release-event', Lang.bind(this, this._clicked));
+	this.signals[widget].push(id);
     }
 
     _disconnectWidgetSignals(widget) {
-	widget.connect('enter-event', this._onEnter.bind(this));
+	for(let idx in this.signals[widget])
-	widget.connect('leave-event', this._onLeave.bind(this));
+	    widget.disconnect(this.signals[widget][idx]);
-	widget.set_reactive(true);
+	this.signals[widget] = null;
-	widget.connect('button-release-event', Lang.bind(this, this._clicked));
     }
     
     _createPopup(item) {
@@ -273,6 +281,8 @@ class MonitorWidget extends PanelMenu.Button {
 	    this.menu.open(true);
 	else if (action === 'close-popup')
 	    this.menu.close();
+	else if (action === 'toggle-popup')
+	    this.menu.toggle();
 	else if (action == 'delete')
 	    this.dbus.deleteItem(this, this.group);
 	else
@@ -285,6 +295,7 @@ class MonitorWidget extends PanelMenu.Button {
     }
     
     _doClickCallback() {
+	if (this.onClick === 'signal') {
             let right = '';
             let nbClicks = '';
             if (this.button == 3)
@@ -293,12 +304,15 @@ class MonitorWidget extends PanelMenu.Button {
 		nbClicks = 'Dbl';
             let signalName = 'on' + right + nbClicks + 'Click';
             this.dbus.emit_signal(signalName, this.fullname);
+	} else
+	    this._manageEventAction(this.onClick);
 	this.nbClicks = 0;
 	this.button = -1;
+
+	return false;
     }
 
     _clicked(actor, event) {
-	if (this.onClick === 'signal') {
 	if (event.get_button() == this.button) {
 	    this.nbClicks++;
 	} else {
@@ -309,13 +323,9 @@ class MonitorWidget extends PanelMenu.Button {
 				 Lang.bind(this, this._doClickCallback));
 	}
 	return Clutter.EVENT_STOP;
-	} else if (this.onClick === 'open-popup') {
-	    this.menu.toggle();
-	} else
-	    return this._manageEventAction(this.onClick);
     }
     
-    _onEnter() {
+    _onEnter(actor, event) {
 	if (this.onEnter === 'signal')
 	    this.dbus.emit_signal('onEnter', this.fullname);
 	else
@@ -324,7 +334,7 @@ class MonitorWidget extends PanelMenu.Button {
 	return Clutter.EVENT_STOP;
     }
 
-    _onLeave() {
+    _onLeave(actor, event) {
 	if (this.onLeave === 'signal')
 	    this.dbus.emit_signal('onLeave', this.fullname);
 	else
@@ -333,6 +343,19 @@ class MonitorWidget extends PanelMenu.Button {
 	return Clutter.EVENT_STOP;
     }
 
+    _onScroll(actor, event) {
+	if (this.onScroll === 'signal') {
+	    let direction = event.get_scroll_direction ();
+	    if (direction ==  Clutter.ScrollDirection.UP)
+		this.dbus.emit_signal('onScrollUp', this.fullname);
+	    else if (direction ==  Clutter.ScrollDirection.DOWN)
+		this.dbus.emit_signal('onScrollDown', this.fullname);
+	} else
+	    return this._manageEventAction(this.onEnter);
+
+	return Clutter.EVENT_STOP;
+    }
+
     update(item) {
         let prevWidget = this.widget;
         let prevIcon = this.icon;
@@ -418,6 +441,7 @@ class MonitorWidget extends PanelMenu.Button {
 	this.onClick = hash_get(item,  'on-click',  this.onClick);
 	this.onEnter = hash_get(item,  'on-enter',  this.onEnter);
 	this.onLeave = hash_get(item,  'on-leave',  this.onLeave);
+	this.onScroll = hash_get(item, 'on-scroll', this.onScroll);
     }
 
     openPopup() {