mootools-window-popup.js

var pop = new new Class({

	Implements: [Options, Events],

	options: {
		// onBlock: Function.from(),
		// onClose: Function.from(),
		// onOpen: Function.from(),
		width: 1024,
		height: 768,
		x: 50,
		y: 50,
		toolbar: 0,
		location: 0,
		directories: 0,
		status: 0,
		scrollbars: 'yes',
		resizable: 0,
		name: 'demoFrame'
	},

	initialize: function(url, options){
		this.url = url || false;

		this.setOptions(options);

		if (this.options.x == 'center') this.options.x = Math.floor((screen.availWidth - this.options.width) / 2);
		if (this.options.y == 'center') this.options.y = Math.floor((screen.availHeight - this.options.height) / 2);

		this.url && this.openWin();
	},

	openWin: function(url){
		url = url || this.url;

		this.focusTries = 0;

		var options = [
			'toolbar={toolbar}',
			'location={location}',
			'directories={directories}',
			'status={status}',
			'scrollbars={scrollbars}',
			'resizable={resizable}',
			'width={width}',
			'height={height}',
			'top={y}',
			'left={x}'
		].join(',').substitute(this.options);

		clearInterval(this.timer);

		this.window = window.open(url, this.options.name, options);

		if (!this.window) {
			try {
				this.window = window.open('', this.options.name, options);
				this.window.location.href = url;
			}
			catch (e) {
				this.fireEvent('block');
			}
		}

		this.focus.delay(100, this);
		return this;
	},
	focus: function(){
		if (this.window) {
			this.window.focus();
			this.monitorClose();
			this.fireEvent('open');
		}
		else if (this.focusTries < 10) {
			//try again
			this.focus.delay(100, this);
		}
		else {
			this.blocked = true;
			this.fireEvent('block');
		}
		return this;
	},
	blocked: null,
	monitorClose: function(){
		// runs to check if a window has been closed.
		var self = this;
		this.timer = setInterval(function(){
			if (self.window.closed) {
				clearTimeout(self.timer);
				self.fireEvent('close');
			}
		}, 100);
	},
	close: function(){
		clearTimeout(this.timer);
		this.window.close();
		self.fireEvent('close');
		return this;
	}
})(null, {
	onBlock: function(){
		alert(['Warning',
			'Your browser just blocked the pop-up window'
		].join('\n'));
	}
});