//
// Author: J. Odeyer
// Date: 2011/09/05
// Last modif date: 
// version: 1.0.0
//
// This script add csp_message function and replace the alert() native javascript function with it .
// 
// Dependencies:
// This class relies on jQuery core library and jQuery ui dialog

function csp_message(settings) {
	//default settings
	this.defaultSettings = {
		modal: true, 
		resizable: true, 
		title: '',
		text: '',
		html: '',
		zIndex: 1000,
		buttons: {
			"OK": function() {
				$(this)
					.dialog("close")
					.dialog("destroy")
					.remove();
			}
		}
	}
	//merge passed settings with default settings
	settings = $.extend({}, this.defaultSettings, settings);
	//create helper (message box)
	var helper = $('<div></div>')
		.appendTo(document.body);
	//check if html is provided
	if(settings.html != '') {
		//add html to the dialog box content
		helper.html(settings.html);
	} else {
		//no html, use text
		helper.append($('<div><p style="white-space:pre-wrap;">' + settings.text + '</p></div>'));
	}
	//add dialog jQuery UI widget
	helper.dialog(settings);
}

/*
function csp_confirm(text, title, okCallbackFunction, okButtonCaption, cancelButtonCaption) {
	//if title is null, define a default title value 
	if(title == null) {
		title = 'Confirm';
	}
	if(okButtonCaption == null) {
		okButtonCaption = "OK";
	}
	
	if(cancelButtonCaption == null) {
		cancelButtonCaption = "Cancel";
	}
	
	//show csp_message
	csp_message({ 
		text: text, 
		title: title, 
		buttons: {
			okButtonCaption: function() {
				eval(okCallbackFunction + '()' );
				$(this)
					.dialog("close")
					.dialog("destroy")
					.remove();
			},
			cancelButtonCaption: function() {
				$(this)
					.dialog("close")
					.dialog("destroy")
					.remove();
			}
		}
	});
	//return false to cancel eventual current event
	return false;
}
*/

//take window as object and replace the alert() native javascript function with csp_message()
(function(obj) {

	//add window variable to activate/deactivate this replacement
	obj.csp_message_replace_alert_active = true;

	var proxied = obj.alert;

	//alert(text, [title], [closeCallbackFn function() {}])
	obj.alert = function(text, title, closeCallbackFn) {
		if(!obj.csp_message_replace_alert_active) {
			//if window.csp_message_replace_alert_active = false, keep the normal behaviour
			return proxied.apply(this, arguments);
		}
		//if title is null, define a default title value 
		if(title == null) {
			title = 'Alert';
		}
		//show csp_message
		csp_message({ text: text, title: title, close: closeCallbackFn});
	};
})(window);

if (typeof (Sys) !== 'undefined') Sys.Application.notifyScriptLoaded();