calendar.js

一个使用yui-ext库

	/**
	* A copy of the initial render functions created before rendering.
	* @property _renderStack
	* @private
	* @type Array
	*/
	_renderStack : null,

	/**
	* The private list of initially selected dates.
	* @property _selectedDates
	* @private
	* @type Array
	*/
	_selectedDates : null,

	/**
	* A map of DOM event handlers to attach to cells associated with specific CSS class names
	* @property domEventMap
	* @type Object
	*/
	domEventMap : null
};



/**
* Initializes the Calendar widget.
* @method init
* @param {String}	id			The id of the table element that will represent the calendar widget
* @param {String}	containerId	The id of the container div element that will wrap the calendar table
* @param {Object}	config		The configuration object containing the Calendar's arguments
*/
YAHOO.widget.Calendar.prototype.init = function(id, containerId, config) {
	this.initEvents();
	this.today = new Date();
	YAHOO.widget.DateMath.clearTime(this.today);

	this.id = id;
	this.oDomContainer = document.getElementById(containerId);

	/**
	* The Config object used to hold the configuration variables for the Calendar
	* @property cfg
	* @type YAHOO.util.Config
	*/
	this.cfg = new YAHOO.util.Config(this);
	
	/**
	* The local object which contains the Calendar's options
	* @property Options
	* @type Object
	*/
	this.Options = {};

	/**
	* The local object which contains the Calendar's locale settings
	* @property Locale
	* @type Object
	*/
	this.Locale = {};

	this.initStyles();

	YAHOO.util.Dom.addClass(this.oDomContainer, this.Style.CSS_CONTAINER);	
	YAHOO.util.Dom.addClass(this.oDomContainer, this.Style.CSS_SINGLE);

	this.cellDates = [];
	this.cells = [];
	this.renderStack = [];
	this._renderStack = [];

	this.setupConfig();
	
	if (config) {
		this.cfg.applyConfig(config, true);
	}
	
	this.cfg.fireQueue();
};

/**
* Renders the built-in IFRAME shim for the IE6 and below
* @method configIframe
*/
YAHOO.widget.Calendar.prototype.configIframe = function(type, args, obj) {
	var useIframe = args[0];

	if (YAHOO.util.Dom.inDocument(this.oDomContainer)) {
		if (useIframe) {
			var pos = YAHOO.util.Dom.getStyle(this.oDomContainer, "position");

			if (this.browser == "ie" && (pos == "absolute" || pos == "relative")) {
				if (! YAHOO.util.Dom.inDocument(this.iframe)) {
					this.iframe = document.createElement("iframe");
					this.iframe.src = "javascript:false;";
					YAHOO.util.Dom.setStyle(this.iframe, "opacity", "0");
					this.oDomContainer.insertBefore(this.iframe, this.oDomContainer.firstChild);
				}
			}
		} else {
			if (this.iframe) {
				if (this.iframe.parentNode) {
					this.iframe.parentNode.removeChild(this.iframe);
				}
				this.iframe = null;
			}
		}
	}
};

/**
* Default handler for the "title" property
* @method configTitle
*/
YAHOO.widget.Calendar.prototype.configTitle = function(type, args, obj) {
	var title = args[0];
	var close = this.cfg.getProperty("close");
	
	var titleDiv;

	if (title && title !== "") {
		titleDiv = YAHOO.util.Dom.getElementsByClassName(YAHOO.widget.CalendarGroup.CSS_2UPTITLE, "div", this.oDomContainer)[0] || document.createElement("div");
		titleDiv.className = YAHOO.widget.CalendarGroup.CSS_2UPTITLE;
		titleDiv.innerHTML = title;
		this.oDomContainer.insertBefore(titleDiv, this.oDomContainer.firstChild);
		YAHOO.util.Dom.addClass(this.oDomContainer, "withtitle");
	} else {
		titleDiv = YAHOO.util.Dom.getElementsByClassName(YAHOO.widget.CalendarGroup.CSS_2UPTITLE, "div", this.oDomContainer)[0] || null;

		if (titleDiv) {
			YAHOO.util.Event.purgeElement(titleDiv);
			this.oDomContainer.removeChild(titleDiv);
		}
		if (! close) {
			YAHOO.util.Dom.removeClass(this.oDomContainer, "withtitle");
		}
	}
};

/**
* Default handler for the "close" property
* @method configClose
*/
YAHOO.widget.Calendar.prototype.configClose = function(type, args, obj) {
	var close = args[0];
	var title = this.cfg.getProperty("title");
	
	var DEPR_CLOSE_PATH = "us/my/bn/x_d.gif";

	var linkClose;

	if (close === true) {
		linkClose = YAHOO.util.Dom.getElementsByClassName("link-close", "a", this.oDomContainer)[0] || document.createElement("a");
		linkClose.href = "javascript:void(null);";
		linkClose.className = "link-close";
		YAHOO.util.Event.addListener(linkClose, "click", this.hide, this, true);
		
		if (YAHOO.widget.Calendar.IMG_ROOT !== null) {
			var imgClose = document.createElement("img");
			imgClose.src = YAHOO.widget.Calendar.IMG_ROOT + DEPR_CLOSE_PATH;
			imgClose.className = YAHOO.widget.CalendarGroup.CSS_2UPCLOSE;
			linkClose.appendChild(imgClose);
		} else {
			linkClose.innerHTML = '<span class="' + YAHOO.widget.CalendarGroup.CSS_2UPCLOSE + ' ' + this.Style.CSS_CLOSE + '"></span>';
		}
		
		this.oDomContainer.appendChild(linkClose);
		YAHOO.util.Dom.addClass(this.oDomContainer, "withtitle");
	} else {
		linkClose = YAHOO.util.Dom.getElementsByClassName("link-close", "a", this.oDomContainer)[0] || null;
		if (linkClose) {
			YAHOO.util.Event.purgeElement(linkClose);
			this.oDomContainer.removeChild(linkClose);
		}
		if (! title || title === "") {
			YAHOO.util.Dom.removeClass(this.oDomContainer, "withtitle");
		}
	}
};

/**
* Initializes Calendar's built-in CustomEvents
* @method initEvents
*/
YAHOO.widget.Calendar.prototype.initEvents = function() {

	/**
	* Fired before a selection is made
	* @event beforeSelectEvent
	*/
	this.beforeSelectEvent = new YAHOO.util.CustomEvent("beforeSelect"); 

	/**
	* Fired when a selection is made
	* @event selectEvent
	* @param {Array}	Array of Date field arrays in the format [YYYY, MM, DD].
	*/
	this.selectEvent = new YAHOO.util.CustomEvent("select");

	/**
	* Fired before a selection is made
	* @event beforeDeselectEvent
	*/
	this.beforeDeselectEvent = new YAHOO.util.CustomEvent("beforeDeselect");

	/**
	* Fired when a selection is made
	* @event deselectEvent
	* @param {Array}	Array of Date field arrays in the format [YYYY, MM, DD].
	*/
	this.deselectEvent = new YAHOO.util.CustomEvent("deselect");

	/**
	* Fired when the Calendar page is changed
	* @event changePageEvent
	*/
	this.changePageEvent = new YAHOO.util.CustomEvent("changePage");

	/**
	* Fired before the Calendar is rendered
	* @event beforeRenderEvent
	*/
	this.beforeRenderEvent = new YAHOO.util.CustomEvent("beforeRender");

	/**
	* Fired when the Calendar is rendered
	* @event renderEvent
	*/
	this.renderEvent = new YAHOO.util.CustomEvent("render");

	/**
	* Fired when the Calendar is reset
	* @event resetEvent
	*/
	this.resetEvent = new YAHOO.util.CustomEvent("reset");

	/**
	* Fired when the Calendar is cleared
	* @event clearEvent
	*/
	this.clearEvent = new YAHOO.util.CustomEvent("clear");

	this.beforeSelectEvent.subscribe(this.onBeforeSelect, this, true);
	this.selectEvent.subscribe(this.onSelect, this, true);
	this.beforeDeselectEvent.subscribe(this.onBeforeDeselect, this, true);
	this.deselectEvent.subscribe(this.onDeselect, this, true);
	this.changePageEvent.subscribe(this.onChangePage, this, true);
	this.renderEvent.subscribe(this.onRender, this, true);
	this.resetEvent.subscribe(this.onReset, this, true);
	this.clearEvent.subscribe(this.onClear, this, true);
};


/**
* The default event function that is attached to a date link within a calendar cell
* when the calendar is rendered.
* @method doSelectCell
* @param {DOMEvent} e	The event
* @param {Calendar} cal	A reference to the calendar passed by the Event utility
*/
YAHOO.widget.Calendar.prototype.doSelectCell = function(e, cal) {
	var target = YAHOO.util.Event.getTarget(e);

	var cell,index,d,date;

	while (target.tagName.toLowerCase() != "td" && ! YAHOO.util.Dom.hasClass(target, cal.Style.CSS_CELL_SELECTABLE)) {
		target = target.parentNode;
		if (target.tagName.toLowerCase() == "html") {
			return;
		}
	}
	
	cell = target;

	if (YAHOO.util.Dom.hasClass(cell, cal.Style.CSS_CELL_SELECTABLE)) {
		index = cell.id.split("cell")[1];
		d = cal.cellDates[index];
		date = new Date(d[0],d[1]-1,d[2]);
	
		var link;

		if (cal.Options.MULTI_SELECT) {
			link = cell.getElementsByTagName("a")[0];
			if (link) {
				link.blur();
			}
			
			var cellDate = cal.cellDates[index];
			var cellDateIndex = cal._indexOfSelectedFieldArray(cellDate);
			
			if (cellDateIndex > -1) {	
				cal.deselectCell(index);
			} else {
				cal.selectCell(index);
			}	
			
		} else {
			link = cell.getElementsByTagName("a")[0];
			if (link) {
				link.blur();
			}
			cal.selectCell(index);
		}
	}
};

/**
* The event that is executed when the user hovers over a cell
* @method doCellMouseOver
* @param {DOMEvent} e	The event
* @param {Calendar} cal	A reference to the calendar passed by the Event utility
*/
YAHOO.widget.Calendar.prototype.doCellMouseOver = function(e, cal) {
	var target;
	if (e) {
		target = YAHOO.util.Event.getTarget(e);
	} else {
		target = this;
	}

	while (target.tagName.toLowerCase() != "td") {
		target = target.parentNode;
		if (target.tagName.toLowerCase() == "html") {
			return;
		}
	}

	if (YAHOO.util.Dom.hasClass(target, cal.Style.CSS_CELL_SELECTABLE)) {
		YAHOO.util.Dom.addClass(target, cal.Style.CSS_CELL_HOVER);
	}
};

/**
* The event that is executed when the user moves the mouse out of a cell
* @method doCellMouseOut
* @param {DOMEvent} e	The event
* @param {Calendar} cal	A reference to the calendar passed by the Event utility
*/
YAHOO.widget.Calendar.prototype.doCellMouseOut = function(e, cal) {
	var target;
	if (e) {
		target = YAHOO.util.Event.getTarget(e);
	} else {
		target = this;
	}

	while (target.tagName.toLowerCase() != "td") {
		target = target.parentNode;
		if (target.tagName.toLowerCase() == "html") {
			return;
		}
	}

	if (YAHOO.util.Dom.hasClass(target, cal.Style.CSS_CELL_SELECTABLE)) {
		YAHOO.util.Dom.removeClass(target, cal.Style.CSS_CELL_HOVER);
	}
};

YAHOO.widget.Calendar.prototype.setupConfig = function() {

	/**
	* The month/year representing the current visible Calendar date (mm/yyyy)
	* @config pagedate
	* @type String
	* @default today's date
	*/
	this.cfg.addProperty("pagedate", { value:new Date(), handler:this.configPageDate } );

	/**
	* The date or range of dates representing the current Calendar selection
	* @config selected
	* @type String
	* @default []
	*/
	this.cfg.addProperty("selected", { value:[], handler:this.configSelected } );

	/**
	* The title to display above the Calendar's month header
	* @config title
	* @type String
	* @default ""
	*/
	this.cfg.addProperty("title", { value:"", handler:this.configTitle } );

	/**
	* Whether or not a close button should be displayed for this Calendar
	* @config close
	* @type Boolean
	* @default false
	*/
	this.cfg.addProperty("close", { value:false, handler:this.configClose } );

	/**
	* Whether or not an iframe shim should be placed under the Calendar to prevent select boxes from bleeding through in Internet Explorer 6 and below.
	* @config iframe
	* @type Boolean
	* @default true
	*/
	this.cfg.addProperty("iframe", { value:true, handler:this.configIframe, validator:this.cfg.checkBoolean } );

	/**
	* The minimum selectable date in the current Calendar (mm/dd/yyyy)
	* @config mindate
	* @type String
	* @default null
	*/
	this.cfg.addProperty("mindate", { value:null, handler:this.configMinDate } );

	/**
	* The maximum selectable date in the current Calendar (mm/dd/yyyy)
	* @config maxdate
	* @type String
	* @default null
	*/
	this.cfg.addProperty("maxdate", { value:null, handler:this.configMaxDate } );


	// Options properties

	/**
	* True if the Calendar should allow multiple selections. False by default.
	* @config MULTI_SELECT
	* @type Boolean
	* @default false
	*/
	this.cfg.addProperty("MULTI_SELECT",	{ value:false, handler:this.configOptions, validator:this.cfg.checkBoolean } );

	/**
	* The weekday the week begins on. Default is 0 (Sunday).
	* @config START_WEEKDAY
	* @type number
	* @default 0
	*/
	this.cfg.addProperty("START_WEEKDAY",	{ value:0, handler:this.configOptions, validator:this.cfg.checkNumber  } );

	/**
	* True if the Calendar should show weekday labels. True by default.
	* @config SHOW_WEEKDAYS
	* @type Boolean
	* @default true
	*/
	this.cfg.addProperty("SHOW_WEEKDAYS",	{ value:true, handler:this.configOptions, validator:this.cfg.checkBoolean  } );

	/**
	* True if the Calendar should show week row headers. False by default.
	* @config SHOW_WEEK_HEADER
	* @type Boolean
	* @default false
	*/
	this.cfg.addProperty("SHOW_WEEK_HEADER",{ value:false, handler:this.configOptions, validator:this.cfg.checkBoolean } );

	/**
	* True if the Calendar should show week row footers. False by default.
	* @config SHOW_WEEK_FOOTER
	* @type Boolean
	* @default false
	*/