/**
 * @license 
 * jQuery Tools 1.2.3 Overlay - Overlay base. Extend it.
 * 
 * NO COPYRIGHTS OR LICENSES. DO WHAT YOU LIKE.
 * 
 * http://flowplayer.org/tools/overlay/
 *
 * Since: March 2008
 * Date:    Mon Jun 7 13:43:53 2010 +0000 
 */
(function(j$) { 

	// static constructs
	j$.tools = j$.tools || {version: '1.2.3'};
	
	j$.tools.overlay = {
		
		addEffect: function(name, loadFn, closeFn) {
			effects[name] = [loadFn, closeFn];	
		},
	
		conf: {  
			close: null,	
			closeOnClick: true,
			closeOnEsc: true,			
			closeSpeed: 'fast',
			effect: 'default',
			
			// since 1.2. fixed positioning not supported by IE6
			fixed: !j$.browser.msie || j$.browser.version > 6, 
			
			left: 'center',		
			load: false, // 1.2
			mask: null,  
			oneInstance: true,
			speed: 'normal',
			target: null, // target element to be overlayed. by default taken from [rel]  
			top: 'center'
		}
	};

	
	var instances = [], effects = {};
		
	// the default effect. nice and easy!
	j$.tools.overlay.addEffect('default', 
		
		/* 
			onLoad/onClose functions must be called otherwise none of the 
			user supplied callback methods won't be called
		*/
		function(pos, onLoad) {
			
			var conf = this.getConf(),
				 w = j$(window);				 
				
			if (!conf.fixed)  {
				pos.top += w.scrollTop();
				pos.left += w.scrollLeft();
			} 
				
			pos.position = conf.fixed ? 'fixed' : 'absolute';
			this.getOverlay().css(pos).fadeIn(conf.speed, onLoad); 
			
		}, function(onClose) {
			this.getOverlay().fadeOut(this.getConf().closeSpeed, onClose); 			
		}		
	);		

	
	function Overlay(trigger, conf) {		
		
		// private variables
		var self = this,
			 fire = trigger.add(self),
			 w = j$(window), 
			 closers,            
			 overlay,
			 opened,
			 maskConf = j$.tools.expose && (conf.mask || conf.expose),
			 uid = Math.random().toString().slice(10);		
		
			 
		// mask configuration
		if (maskConf) {			
			if (typeof maskConf == 'string') { maskConf = {color: maskConf}; }
			maskConf.closeOnClick = maskConf.closeOnEsc = false;
		}			 
		 
		// get overlay and triggerr
		var jq = conf.target || trigger.attr("rel");
		overlay = jq ? j$(jq) : null || trigger;	
		
		// overlay not found. cannot continue
		if (!overlay.length) { throw "Could not find Overlay: " + jq; }
		
		// trigger's click event
		if (trigger && trigger.index(overlay) == -1) {
			trigger.click(function(e) {				
				self.load(e);
				return e.preventDefault();
			});
		}   			
		
		// API methods  
		j$.extend(self, {

			load: function(e) {
				
				// can be opened only once
				if (self.isOpened()) { return self; }
				
				// find the effect
		 		var eff = effects[conf.effect];
		 		if (!eff) { throw "Overlay: cannot find effect : \"" + conf.effect + "\""; }
				
				// close other instances?
				if (conf.oneInstance) {
					j$.each(instances, function() {
						this.close(e);
					});
				}
				
				// onBeforeLoad
				e = e || j$.Event();
				e.type = "onBeforeLoad";
				fire.trigger(e);				
				if (e.isDefaultPrevented()) { return self; }				

				// opened
				opened = true;
				
				// possible mask effect
				if (maskConf) { j$(overlay).expose(maskConf); }				
				
				// position & dimensions 
				var top = conf.top,					
					 left = conf.left,
					 oWidth = overlay.outerWidth({margin:true}),
					 oHeight = overlay.outerHeight({margin:true}); 
				
				if (top == 'center')  { top =  Math.max((w.height() - oHeight) / 2, 0); }
				if (left == 'center') { left = Math.max((w.width() - oWidth) / 2, 0); }

				
		 		// load effect  		 		
				eff[0].call(self, {top: top, left: left}, function() {					
					if (opened) {
						e.type = "onLoad";
						fire.trigger(e);
					}
				}); 				

				// mask.click closes overlay
				if (maskConf && conf.closeOnClick) {
					j$.mask.getMask().one("click", self.close); 
				}
				
				// when window is clicked outside overlay, we close
				if (conf.closeOnClick) {
					j$(document).bind("click." + uid, function(e) { 
						if (!j$(e.target).parents(overlay).length) { 
							self.close(e); 
						}
					});						
				}						
			
				// keyboard::escape
				if (conf.closeOnEsc) { 

					// one callback is enough if multiple instances are loaded simultaneously
					j$(document).bind("keydown." + uid, function(e) {
						if (e.keyCode == 27) { 
							self.close(e);	 
						}
					});			
				}

				
				return self; 
			}, 
			
			close: function(e) {

				if (!self.isOpened()) { return self; }
				
				e = e || j$.Event();
				e.type = "onBeforeClose";
				fire.trigger(e);				
				if (e.isDefaultPrevented()) { return; }				
				
				opened = false;
				
				// close effect
				effects[conf.effect][1].call(self, function() {
					e.type = "onClose";
					fire.trigger(e); 
				});
				
				// unbind the keyboard / clicking actions
				j$(document).unbind("click." + uid).unbind("keydown." + uid);		  
				
				if (maskConf) {
					j$.mask.close();		
				}
				 
				return self;
			}, 


//-----------------------add yamasaki

			close01: function(e) {

				if (!self.isOpened()) { return self; }
				
				e = e || j$.Event();
				e.type = "onBeforeClose";
				fire.trigger(e);				
				if (e.isDefaultPrevented()) { return; }				
				
				opened = false;
				
				// close effect
				effects[conf.effect][1].call(self, function() {
					e.type = "onClose";
					fire.trigger(e); 
				});
				
				// unbind the keyboard / clicking actions
				j$(document).unbind("click." + uid).unbind("keydown." + uid);		  
				
				if (maskConf) {
					j$.mask.close();		
				}
				 
				return self;
			}, 
			
//---------add yamasaki end






			getOverlay: function() {
				return overlay;	
			},
			
			getTrigger: function() {
				return trigger;	
			},
			
			getClosers: function() {
				return closers;	
			},			

			isOpened: function()  {
				return opened;
			},
			
			// manipulate start, finish and speeds
			getConf: function() {
				return conf;	
			}			
			
		});
		
		// callbacks	
		j$.each("onBeforeLoad,onStart,onLoad,onBeforeClose,onClose".split(","), function(i, name) {
				
			// configuration
			if (j$.isFunction(conf[name])) { 
				j$(self).bind(name, conf[name]); 
			}

			// API
			self[name] = function(fn) {
				j$(self).bind(name, fn);
				return self;
			};
		});
		
		// close button
		closers = overlay.find(conf.close || ".close");		
		
		if (!closers.length && !conf.close) {
			closers = j$('<a class="close"></a>');
			overlay.prepend(closers);	
		}		
		
		closers.click(function(e) { 
			self.close(e);  
		});	
		
		// autoload
		if (conf.load) { self.load(); }
		
	}
	
	// jQuery plugin initialization
	j$.fn.overlay = function(conf) {   
		
		// already constructed --> return API
		var el = this.data("overlay");
		if (el) { return el; }	  		 
		
		if (j$.isFunction(conf)) {
			conf = {onBeforeLoad: conf};	
		}

		conf = j$.extend(true, {}, j$.tools.overlay.conf, conf);
		
		this.each(function() {		
			el = new Overlay(j$(this), conf);
			instances.push(el);
			j$(this).data("overlay", el);	
		});
		
		return conf.api ? el: this;		
	};
	
	
	
	
	
	

	
	var tool;
	
	tool = j$.tools.expose = {
		
		conf: {	
			maskId: 'exposeMask',
			loadSpeed: 'slow',
			closeSpeed: 'fast',
			closeOnClick: true,
			closeOnEsc: true,
			
			// css settings
			zIndex: 9998,
			opacity: 0.0,
			startOpacity: 0,
			color: '#fff',
			
			// callbacks
			onLoad: null,
			onClose: null
		}
	};

	/* one of the greatest headaches in the tool. finally made it */
	function viewport() {
				
		// the horror case
		if (j$.browser.msie) {
			
			// if there are no scrollbars then use window.height
			var d = j$(document).height(), w = j$(window).height();
			
			return [
				window.innerWidth || 							// ie7+
				document.documentElement.clientWidth || 	// ie6  
				document.body.clientWidth, 					// ie6 quirks mode
				d - w < 20 ? w : d
			];
		} 
		
		// other well behaving browsers
		return [j$(document).width(), j$(document).height()]; 
	} 
	
	function call(fn) {
		if (fn) { return fn.call(j$.mask); }
	}
	
	var mask, exposed, loaded, config, overlayIndex;		
	
	
	j$.mask = {
		
		load: function(conf, els) {
			
			// already loaded ?
			if (loaded) { return this; }			
			
			// configuration
			if (typeof conf == 'string') {
				conf = {color: conf};	
			}
			
			// use latest config
			conf = conf || config;
			
			config = conf = j$.extend(j$.extend({}, tool.conf), conf);

			// get the mask
			mask = j$("#" + conf.maskId);
				
			// or create it
			if (!mask.length) {
				mask = j$('<div/>').attr("id", conf.maskId);
				j$("body").append(mask);
			}
			
			// set position and dimensions 			
			var size = viewport();
				
			mask.css({				
				position:'absolute', 
				top: 0, 
				left: 0,
				width: size[0],
				height: size[1],
				display: 'none',
				opacity: conf.startOpacity,					 		
				zIndex: conf.zIndex 
			});
			
			if (conf.color) {
				mask.css("backgroundColor", conf.color);	
			}			
			
			// onBeforeLoad
			if (call(conf.onBeforeLoad) === false) {
				return this;
			}
			
			// esc button
			if (conf.closeOnEsc) {						
				j$(document).bind("keydown.mask", function(e) {							
					if (e.keyCode == 27) {
						j$.mask.close(e);	
					}		
				});			
			}
			
			// mask click closes
			if (conf.closeOnClick) {
				mask.bind("click.mask", function(e)  {
					j$.mask.close(e);		
				});					
			}			
			
			// resize mask when window is resized
			j$(window).bind("resize.mask", function() {
				j$.mask.fit();
			});
			
			// exposed elements
			if (els && els.length) {
				
				overlayIndex = els.eq(0).css("zIndex");

				// make sure element is positioned absolutely or relatively
				j$.each(els, function() {
					var el = j$(this);
					if (!/relative|absolute|fixed/i.test(el.css("position"))) {
						el.css("position", "relative");		
					}					
				});
			 
				// make elements sit on top of the mask
				exposed = els.css({ zIndex: Math.max(conf.zIndex + 1, overlayIndex == 'auto' ? 0 : overlayIndex)});			
			}	
			
			// reveal mask
			mask.css({display: 'block'}).fadeTo(conf.loadSpeed, conf.opacity, function() {
				j$.mask.fit(); 
				call(conf.onLoad);
			});
			
			loaded = true;			
			return this;				
		},
		
		close: function() {
			if (loaded) {
				
				// onBeforeClose
				if (call(config.onBeforeClose) === false) { return this; }
					
				mask.fadeOut(config.closeSpeed, function()  {					
					call(config.onClose);					
					if (exposed) {
						exposed.css({zIndex: overlayIndex});
					}				
				});				
				
				// unbind various event listeners
				j$(document).unbind("keydown.mask");
				mask.unbind("click.mask");
				j$(window).unbind("resize.mask");
	
				loaded = false;
			}
			
			return this; 
		},
		
		fit: function() {
			if (loaded) {
				var size = viewport();				
				mask.css({width: size[0], height: size[1]});
			}				
		},
		
		getMask: function() {
			return mask;	
		},
		
		isLoaded: function() {
			return loaded;	
		}, 
		
		getConf: function() {
			return config;	
		},
		
		getExposed: function() {
			return exposed;	
		}		
	};
	
	j$.fn.mask = function(conf) {
		j$.mask.load(conf);
		return this;		
	};			
	
	j$.fn.expose = function(conf) {
		j$.mask.load(conf, this);
		return this;			
	};
	
})(jQuery);