From 9ba60ba57ccfea1093ebb795d42f6b9cd63b31a2 Mon Sep 17 00:00:00 2001
From: "ctrlaltca@gmail.com" <>
Date: Wed, 27 Jul 2011 07:09:09 +0000
Subject: fix for #265 + disable wheel event for TActiveDatePicker to avoid
 callback floods

---
 .../source/prado/activecontrols/activedatepicker.js   |  6 ++++++
 .../Javascripts/source/prado/datepicker/datepicker.js | 19 ++++++++++++-------
 2 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/framework/Web/Javascripts/source/prado/activecontrols/activedatepicker.js b/framework/Web/Javascripts/source/prado/activecontrols/activedatepicker.js
index 8857ee05..2ee97266 100755
--- a/framework/Web/Javascripts/source/prado/activecontrols/activedatepicker.js
+++ b/framework/Web/Javascripts/source/prado/activecontrols/activedatepicker.js
@@ -87,5 +87,11 @@ Prado.WebUI.TActiveDatePicker = Class.extend(Prado.WebUI.TDatePicker,
 		// Make callback request
 		var request = new Prado.CallbackRequest(this.options.EventTarget,this.options);
 		request.dispatch();
+	},
+	
+	// reimplement parent method to avoid handling mouse whell events,
+	// since they can cause floods of callback events
+	mouseWheelChange : function (event)
+	{
 	}
 }); 
diff --git a/framework/Web/Javascripts/source/prado/datepicker/datepicker.js b/framework/Web/Javascripts/source/prado/datepicker/datepicker.js
index 8105823a..95ab43e7 100644
--- a/framework/Web/Javascripts/source/prado/datepicker/datepicker.js
+++ b/framework/Web/Javascripts/source/prado/datepicker/datepicker.js
@@ -303,8 +303,10 @@ Prado.WebUI.TDatePicker.prototype =
 		Event.observe(this._monthSelect, "change", this.monthSelect.bindEvent(this));
 		Event.observe(this._yearSelect, "change", this.yearSelect.bindEvent(this));
 
-		// ie6 extension
+		// ie, opera
 		Event.observe(this._calDiv, "mousewheel", this.mouseWheelChange.bindEvent(this));
+		// ff
+		Event.observe(this._calDiv, "DOMMouseScroll", this.mouseWheelChange.bindEvent(this));
 
 		Event.observe(calendarBody, "click", this.selectDate.bindEvent(this));
 
@@ -448,15 +450,18 @@ Prado.WebUI.TDatePicker.prototype =
 		this.setYear(Form.Element.getValue(Event.element(ev)));
 	},
 
-	// ie6 extension
-	mouseWheelChange : function (e)
+	mouseWheelChange : function (event)
 	{
-		if (e == null) e = document.parentWindow.event;
-		var n = - e.wheelDelta / 120;
+		var delta = 0;
+		if (!event) event = document.parentWindow.event;
+		if (event.wheelDelta) {
+			delta = event.wheelDelta/120;
+			if (window.opera) delta = -delta;
+		} else if (event.detail) { delta = -event.detail/3;     }
+
 		var d = this.newDate(this.selectedDate);
-		var m = d.getMonth() + n;
+		var m = d.getMonth() + Math.round(delta);
 		this.setMonth(m);
-
 		return false;
 	},
 
-- 
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