638 lines
23 KiB
JavaScript
638 lines
23 KiB
JavaScript
YAHOO.namespace('ext', 'ext.util', 'ext.grid', 'ext.dd', 'ext.tree', 'ext.data', 'ext.form');
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if(typeof Ext == 'undefined'){
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Ext = YAHOO.ext;
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}
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YAHOO.ext.Strict = (document.compatMode == 'CSS1Compat');
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YAHOO.ext.SSL_SECURE_URL = 'javascript:false';
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YAHOO.ext.BLANK_IMAGE_URL = 'http:/'+'/www.yui-ext.com/blog/images/s.gif';
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// for old browsers
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window.undefined = undefined;
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/**
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* @class Function
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* These functions are available on every Function object (any javascript function).
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*/
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//
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/**
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* Creates a callback that passes arguments[0], arguments[1], arguments[2], ...
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* Call directly on any function. Example: <code>myFunction.createCallback(myarg, myarg2)</code>
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* Will create a function that is bound to those 2 args.
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* @return {Function} The new function
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*/
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Function.prototype.createCallback = function(/*args...*/){
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// make args available, in function below
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var args = arguments;
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var method = this;
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return function() {
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return method.apply(window, args);
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};
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};
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/**
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* Creates a delegate (callback) that sets the scope to obj.
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* Call directly on any function. Example: <code>this.myFunction.createDelegate(this)</code>
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* Will create a function that is automatically scoped to this.
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* @param {Object} obj (optional) The object for which the scope is set
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* @param {<i>Array</i>} args (optional) Overrides arguments for the call. (Defaults to the arguments passed by the caller)
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* @param {<i>Boolean/Number</i>} appendArgs (optional) if True args are appended to call args instead of overriding,
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* if a number the args are inserted at the specified position
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* @return {Function} The new function
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*/
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Function.prototype.createDelegate = function(obj, args, appendArgs){
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var method = this;
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return function() {
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var callArgs = args || arguments;
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if(appendArgs === true){
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callArgs = Array.prototype.slice.call(arguments, 0);
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callArgs = callArgs.concat(args);
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}else if(typeof appendArgs == 'number'){
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callArgs = Array.prototype.slice.call(arguments, 0); // copy arguments first
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var applyArgs = [appendArgs, 0].concat(args); // create method call params
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Array.prototype.splice.apply(callArgs, applyArgs); // splice them in
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}
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return method.apply(obj || window, callArgs);
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};
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};
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/**
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* Calls this function after the number of millseconds specified.
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* @param {Number} millis The number of milliseconds for the setTimeout call
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* @param {Object} obj (optional) The object for which the scope is set
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* @param {<i>Array</i>} args (optional) Overrides arguments for the call. (Defaults to the arguments passed by the caller)
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* @param {<i>Boolean/Number</i>} appendArgs (optional) if True args are appended to call args instead of overriding,
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* if a number the args are inserted at the specified position
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* @return {Number} The timeout id that can be used with clearTimeout
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*/
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Function.prototype.defer = function(millis, obj, args, appendArgs){
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return setTimeout(this.createDelegate(obj, args, appendArgs), millis);
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};
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/**
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* Create a combined function call sequence of the original function + the passed function.
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* The resulting function returns the results of the original function.
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* The passed fcn is called with the parameters of the original function
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* @param {Function} fcn The function to sequence
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* @param {<i>Object</i>} scope (optional) The scope of the passed fcn (Defaults to scope of original function or window)
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* @return {Function} The new function
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*/
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Function.prototype.createSequence = function(fcn, scope){
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if(typeof fcn != 'function'){
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return this;
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}
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var method = this;
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return function() {
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var retval = method.apply(this || window, arguments);
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fcn.apply(scope || this || window, arguments);
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return retval;
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};
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};
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/*
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* IE will leak if this isn't here
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*/
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YAHOO.util.Event.on(window, 'unload', function(){
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var p = Function.prototype;
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delete p.createSequence;
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delete p.defer;
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delete p.createDelegate;
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delete p.createCallback;
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delete p.createInterceptor;
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});
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/**
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* Creates an interceptor function. The passed fcn is called before the original one. If it returns false, the original one is not called.
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* The resulting function returns the results of the original function.
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* The passed fcn is called with the parameters of the original function.
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* @addon
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* @param {Function} fcn The function to call before the original
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* @param {<i>Object</i>} scope (optional) The scope of the passed fcn (Defaults to scope of original function or window)
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* @return {Function} The new function
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*/
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Function.prototype.createInterceptor = function(fcn, scope){
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if(typeof fcn != 'function'){
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return this;
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}
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var method = this;
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return function() {
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fcn.target = this;
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fcn.method = method;
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if(fcn.apply(scope || this || window, arguments) === false){
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return;
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}
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return method.apply(this || window, arguments);;
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};
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};
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/**
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* @class YAHOO.ext.util.Browser
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* @singleton
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*/
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YAHOO.ext.util.Browser = new function(){
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var ua = navigator.userAgent.toLowerCase();
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/** @type Boolean */
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this.isOpera = (ua.indexOf('opera') > -1);
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/** @type Boolean */
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this.isSafari = (ua.indexOf('webkit') > -1);
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/** @type Boolean */
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this.isIE = (window.ActiveXObject);
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/** @type Boolean */
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this.isIE7 = (ua.indexOf('msie 7') > -1);
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/** @type Boolean */
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this.isGecko = !this.isSafari && (ua.indexOf('gecko') > -1);
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if(ua.indexOf("windows") != -1 || ua.indexOf("win32") != -1){
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/** @type Boolean */
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this.isWindows = true;
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}else if(ua.indexOf("macintosh") != -1){
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/** @type Boolean */
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this.isMac = true;
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}
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if(this.isIE && !this.isIE7){
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try{
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document.execCommand("BackgroundImageCache", false, true);
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}catch(e){}
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}
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}();
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/**
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* Enable custom handler signature and event cancelling. Using fireDirect() instead of fire() calls the subscribed event handlers
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* with the exact parameters passed to fireDirect, instead of the usual (eventType, args[], obj). IMO this is more intuitive
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* and promotes cleaner code. Also, if an event handler returns false, it is returned by fireDirect and no other handlers will be called.<br>
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* Example:<br><br><pre><code>
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* if(beforeUpdateEvent.fireDirect(myArg, myArg2) !== false){
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* // do update
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* }</code></pre>
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*/
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YAHOO.util.CustomEvent.prototype.fireDirect = function(){
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var len=this.subscribers.length;
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for (var i=0; i<len; ++i) {
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var s = this.subscribers[i];
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if(s){
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var scope = (s.override) ? s.obj : this.scope;
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if(s.fn.apply(scope, arguments) === false){
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return false;
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}
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}
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}
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return true;
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};
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/**
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* @class YAHOO-
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* Additional functionality for the global YAHOO object.
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* @singleton
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*/
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/**
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* Prints all arguments to a resizable, movable, scrolling region without
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* the need to include separate js or css. Double click it to hide it.
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* @param {Mixed} arg1
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* @param {Mixed} arg2
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* @param {Mixed} etc
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* @static
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*/
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YAHOO.print = function(arg1, arg2, etc){
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if(!YAHOO.ext._console){
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var cs = YAHOO.ext.DomHelper.insertBefore(document.body.firstChild,
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{tag: 'div',style:'width:250px;height:350px;overflow:auto;border:3px solid #c3daf9;' +
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'background:white;position:absolute;right:5px;top:5px;' +
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'font:normal 8pt arial,verdana,helvetica;z-index:50000;padding:5px;'}, true);
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if(YAHOO.ext.Resizable){
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new YAHOO.ext.Resizable(cs, {
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transparent:true,
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handles: 'all',
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pinned:true,
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adjustments: [0,0],
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wrap:true,
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draggable:(YAHOO.util.DD ? true : false)
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});
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}
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cs.on('dblclick', cs.hide);
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YAHOO.ext._console = cs;
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}
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var m = '';
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for(var i = 0, len = arguments.length; i < len; i++) {
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m += (i == 0 ? '' : ', ') + arguments[i];
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}
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m += '<hr noshade style="color:#eeeeee;" size="1">'
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var d = YAHOO.ext._console.dom;
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d.innerHTML = m + d.innerHTML;
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d.scrollTop = 0;
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YAHOO.ext._console.show();
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};
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/**
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* Applies the passed C#/DomHelper style format (e.g. "The variable {0} is equal to {1}") before calling {@link YAHOO#print}
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* @param {String} format
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* @param {Mixed} arg1
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* @param {Mixed} arg2
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* @param {Mixed} etc
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* @static
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*/
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YAHOO.printf = function(format, arg1, arg2, etc){
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var args = Array.prototype.slice.call(arguments, 1);
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YAHOO.print(format.replace(
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/\{\{[^{}]*\}\}|\{(\d+)(,\s*([\w.]+))?\}/g,
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function(m, a1, a2, a3) {
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if (m.chatAt == '{') {
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return m.slice(1, -1);
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}
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var rpl = args[a1];
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if (a3) {
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var f = eval(a3);
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rpl = f(rpl);
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}
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return rpl ? rpl : '';
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}));
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}
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YAHOO._timers = {};
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/**
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* If a timer with specified name doesn't exist it is started. If one exists and reset is not true
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* it prints the ellapsed time since the start using YAHOO.printf.
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* @param {String} name
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* @param {Boolean} reset true to reset an existing timer
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*/
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YAHOO.timer = function(name, reset){
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var t = new Date().getTime();
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if(YAHOO._timers[name] && !reset){
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YAHOO.printf("{0} : {1} ms", name, t-YAHOO._timers[name]);
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}else{
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YAHOO._timers[name] = t;
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}
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}
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/**
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* Extends one class with another class and optionally overrides members with the passed literal. This class
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* also adds the function "override()" to the class that can be used to override
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* members on an instance.
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* @param {Object} subclass The class inheriting the functionality
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* @param {Object} superclass The class being extended
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* @param {Object} overrides (optional) A literal with members
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* @static
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*/
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YAHOO.extendX = function(subclass, superclass, overrides){
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YAHOO.extend(subclass, superclass);
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subclass.override = function(o){
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YAHOO.override(subclass, o);
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};
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if(!subclass.prototype.override){
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subclass.prototype.override = function(o){
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for(var method in o){
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this[method] = o[method];
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}
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};
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}
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if(overrides){
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subclass.override(overrides);
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}
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};
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/**
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* Creates namespaces but does not assume YAHOO is the root.
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* @param {String} namespace1
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* @param {String} namespace2
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* @param {String} etc
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* @static
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*/
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YAHOO.namespaceX = function(){
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var a = arguments, len = a.length, i;
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YAHOO.namespace.apply(YAHOO, a);
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for(i = 0; i < len; i++){
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var p = a[i].split('.')[0];
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if(p != 'YAHOO' && YAHOO[p]){
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eval(p + ' = YAHOO.' + p);
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delete YAHOO[p];
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}
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}
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};
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YAHOO.override = function(origclass, overrides){
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if(overrides){
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var p = origclass.prototype;
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for(var method in overrides){
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p[method] = overrides[method];
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}
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}
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};
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/**
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* @class YAHOO.ext.util.DelayedTask
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* Provides a convenient method of performing setTimeout where a new
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* timeout cancels the old timeout. An example would be performing validation on a keypress.
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* You can use this class to buffer
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* the keypress events for a certain number of milliseconds, and perform only if they stop
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* for that amount of time.
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* @constructor The parameters to this constructor serve as defaults and are not required.
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* @param {<i>Function</i>} fn (optional) The default function to timeout
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* @param {<i>Object</i>} scope (optional) The default scope of that timeout
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* @param {<i>Array</i>} args (optional) The default Array of arguments
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*/
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YAHOO.ext.util.DelayedTask = function(fn, scope, args){
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var timeoutId = null;
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/**
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* Cancels any pending timeout and queues a new one
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* @param {Number} delay The milliseconds to delay
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* @param {Function} newFn (optional) Overrides function passed to constructor
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* @param {Object} newScope (optional) Overrides scope passed to constructor
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* @param {Array} newArgs (optional) Overrides args passed to constructor
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*/
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this.delay = function(delay, newFn, newScope, newArgs){
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if(timeoutId){
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clearTimeout(timeoutId);
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}
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fn = newFn || fn;
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scope = newScope || scope;
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args = newArgs || args;
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timeoutId = setTimeout(fn.createDelegate(scope, args), delay);
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};
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/**
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* Cancel the last queued timeout
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*/
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this.cancel = function(){
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if(timeoutId){
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clearTimeout(timeoutId);
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timeoutId = null;
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}
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};
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};
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/**
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* @class YAHOO.ext.util.Observable
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* Abstract base class that provides a common interface for publishing events. Subclasses are expected to
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* to have a property "events" with all the events defined.<br>
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* For example:
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* <pre><code>
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var Employee = function(name){
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this.name = name;
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this.events = {
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'fired' : new YAHOO.util.CustomEvent('fired'),
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'quit' : true // lazy initialize the CustomEvent
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}
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}
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YAHOO.extend(Employee, YAHOO.ext.util.Observable);
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</code></pre>
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*/
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YAHOO.ext.util.Observable = function(){};
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YAHOO.ext.util.Observable.prototype = {
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/**
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* Fires the specified event with the passed parameters (minus the event name).
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* @param {String} eventName
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* @param {Object...} args Variable number of parameters are passed to handlers
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* @return {Boolean} returns false if any of the handlers return false otherwise it returns true
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*/
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fireEvent : function(){
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var ce = this.events[arguments[0].toLowerCase()];
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if(typeof ce == 'object'){
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return ce.fireDirect.apply(ce, Array.prototype.slice.call(arguments, 1));
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}else{
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return true;
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}
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},
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/**
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* Appends an event handler to this component
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* @param {String} eventName The type of event to listen for
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* @param {Function} handler The method the event invokes
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* @param {<i>Object</i>} scope (optional) The scope (this object) for the handler
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* @param {<i>boolean</i>} override (optional) If true, scope becomes the scope
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*/
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addListener : function(eventName, fn, scope, override){
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eventName = eventName.toLowerCase();
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var ce = this.events[eventName];
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if(!ce){
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// added for a better message when subscribing to wrong event
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throw 'You are trying to listen for an event that does not exist: "' + eventName + '".';
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}
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if(typeof ce == 'boolean'){
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ce = new YAHOO.util.CustomEvent(eventName);
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this.events[eventName] = ce;
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}
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ce.subscribe(fn, scope, override);
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},
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/**
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* Appends an event handler to this component that is delayed the specified number of milliseconds. This
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* is useful for events that modify the DOM and need to wait for the browser to catch up.
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* @param {String} eventName The type of event to listen for
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* @param {Function} handler The method the event invokes
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* @param {<i>Object</i>} scope (optional) The scope (this object) for the handler
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* @param {<i>Number</i>} delay (optional) The number of milliseconds to delay (defaults to 1 millisecond)
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* @return {Function} The wrapped function that was created (can be used to remove the listener)
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*/
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delayedListener : function(eventName, fn, scope, delay){
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var newFn = function(){
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setTimeout(fn.createDelegate(scope, arguments), delay || 1);
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}
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this.addListener(eventName, newFn);
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return newFn;
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},
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/**
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* Appends an event handler to this component that is buffered. If the event is triggered more than once
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* in the specified time-frame, only the last one actually fires.
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* @param {String} eventName The type of event to listen for
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* @param {Function} handler The method the event invokes
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* @param {<i>Object</i>} scope (optional) The scope (this object) for the handler
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* @param {<i>Number</i>} millis (optional) The number of milliseconds to buffer (defaults to 250)
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* @return {Function} The wrapped function that was created (can be used to remove the listener)
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*/
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bufferedListener : function(eventName, fn, scope, millis){
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var task = new YAHOO.ext.util.DelayedTask();
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var newFn = function(){
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task.delay(millis || 250, fn, scope, Array.prototype.slice.call(arguments, 0));
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}
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this.addListener(eventName, newFn);
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return newFn;
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},
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/**
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* Removes a listener
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* @param {String} eventName The type of event to listen for
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* @param {Function} handler The handler to remove
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* @param {<i>Object</i>} scope (optional) The scope (this object) for the handler
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*/
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removeListener : function(eventName, fn, scope){
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var ce = this.events[eventName.toLowerCase()];
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if(typeof ce == 'object'){
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ce.unsubscribe(fn, scope);
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}
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},
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/**
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* Removes all listeners for this object
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*/
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purgeListeners : function(){
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for(var evt in this.events){
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if(typeof this.events[evt] == 'object'){
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this.events[evt].unsubscribeAll();
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}
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}
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}
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};
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/**
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* Appends an event handler to this element (shorthand for addListener)
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* @param {String} eventName The type of event to listen for
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* @param {Function} handler The method the event invokes
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* @param {<i>Object</i>} scope (optional) The scope (this object) for the handler
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* @param {<i>boolean</i>} override (optional) If true, scope becomes the scope
|
|
* @method
|
|
*/
|
|
YAHOO.ext.util.Observable.prototype.on = YAHOO.ext.util.Observable.prototype.addListener;
|
|
|
|
/**
|
|
* Starts capture on the specified Observable. All events will be passed
|
|
* to the supplied function with the event name + standard signature of the event
|
|
* <b>before</b> the event is fired. If the supplied function returns false,
|
|
* the event will not fire.
|
|
* @param {Observable} o The Observable to capture
|
|
* @param {Function} fn The function to call
|
|
* @param {Object} scope (optional) The scope (this object) for the fn
|
|
* @static
|
|
*/
|
|
YAHOO.ext.util.Observable.capture = function(o, fn, scope){
|
|
o.fireEvent = o.fireEvent.createInterceptor(fn, scope);
|
|
};
|
|
|
|
/**
|
|
* Removes <b>all</b> added captures from the Observable.
|
|
* @param {Observable} o The Observable to release
|
|
* @static
|
|
*/
|
|
YAHOO.ext.util.Observable.releaseCapture = function(o){
|
|
o.fireEvent = YAHOO.ext.util.Observable.prototype.fireEvent;
|
|
};
|
|
|
|
/**
|
|
* @class YAHOO.ext.util.Config
|
|
* Class with one useful method
|
|
* @singleton
|
|
*/
|
|
YAHOO.ext.util.Config = {
|
|
/**
|
|
* Copies all the properties of config to obj.
|
|
* @param {Object} obj The receiver of the properties
|
|
* @param {Object} config The source of the properties
|
|
* @param {Object} defaults A different object that will also be applied for default values
|
|
* @return {Object} returns obj
|
|
*/
|
|
apply : function(obj, config, defaults){
|
|
if(defaults){
|
|
this.apply(obj, defaults);
|
|
}
|
|
if(config){
|
|
for(var prop in config){
|
|
obj[prop] = config[prop];
|
|
}
|
|
}
|
|
return obj;
|
|
}
|
|
};
|
|
|
|
if(!String.escape){
|
|
String.escape = function(string) {
|
|
return string.replace(/('|\\)/g, "\\$1");
|
|
};
|
|
};
|
|
|
|
String.leftPad = function (val, size, ch) {
|
|
var result = new String(val);
|
|
if (ch == null) {
|
|
ch = " ";
|
|
}
|
|
while (result.length < size) {
|
|
result = ch + result;
|
|
}
|
|
return result;
|
|
};
|
|
|
|
// workaround for Safari anim duration speed problems
|
|
if(YAHOO.util.AnimMgr && YAHOO.ext.util.Browser.isSafari){
|
|
YAHOO.util.AnimMgr.fps = 500;
|
|
}
|
|
|
|
// add ability for callbacks instead of events for animations
|
|
if(YAHOO.util.Anim){
|
|
YAHOO.util.Anim.prototype.animateX = function(callback, scope){
|
|
var f = function(){
|
|
this.onComplete.unsubscribe(f);
|
|
if(typeof callback == 'function'){
|
|
callback.call(scope || this, this);
|
|
}
|
|
};
|
|
this.onComplete.subscribe(f, this, true);
|
|
this.animate();
|
|
};
|
|
}
|
|
|
|
// workaround for Safari 1.3 not supporting hasOwnProperty
|
|
if(YAHOO.util.Connect && YAHOO.ext.util.Browser.isSafari){
|
|
YAHOO.util.Connect.setHeader = function(o){
|
|
for(var prop in this._http_header){
|
|
// if(this._http_header.hasOwnProperty(prop)){
|
|
if(typeof this._http_header[prop] != 'function'){
|
|
o.conn.setRequestHeader(prop, this._http_header[prop]);
|
|
}
|
|
}
|
|
delete this._http_header;
|
|
this._http_header = {};
|
|
this._has_http_headers = false;
|
|
};
|
|
}
|
|
/**
|
|
* A simple enhancement to drag drop that allows you to constrain the movement of the
|
|
* DD or DDProxy object to a particular element.<br /><br />
|
|
*
|
|
* Usage:
|
|
<pre><code>
|
|
var dd = new YAHOO.util.DDProxy("dragDiv1", "proxytest",
|
|
{ dragElId: "existingProxyDiv" });
|
|
dd.startDrag = function(){
|
|
this.constrainTo('parent-id');
|
|
};
|
|
</code></pre>
|
|
* Or you can initalize it using the {@link YAHOO.ext.Element} object:
|
|
<pre><code>
|
|
getEl('dragDiv1').initDDProxy('proxytest', {dragElId: "existingProxyDiv"}, {
|
|
startDrag : function(){
|
|
this.constrainTo('parent-id');
|
|
}
|
|
});
|
|
</code></pre>
|
|
*/
|
|
if(YAHOO.util.DragDrop){
|
|
/**
|
|
* Provides default constraint padding to "constrainTo" elements (defaults to {left: 0, right:0, top:0, bottom:0}).
|
|
* @type Object
|
|
*/
|
|
YAHOO.util.DragDrop.prototype.defaultPadding = {left:0, right:0, top:0, bottom:0};
|
|
|
|
/**
|
|
* Initializes the drag drop object's constraints to restrict movement to a certain element.
|
|
* @param {String/HTMLElement/Element} constrainTo The element to constrain to.
|
|
* @param {Object/Number} pad (optional) Pad provides a way to specify "padding" of the constraints,
|
|
* and can be either a number for symmetrical padding (4 would be equal to {left:4, right:4, top:4, bottom:4}) or
|
|
* an object containing the sides to pad. For example: {right:10, bottom:10}
|
|
* @param {Boolean} inContent (optional) Constrain the draggable in the content box of the element (inside padding and borders)
|
|
*/
|
|
YAHOO.util.DragDrop.prototype.constrainTo = function(constrainTo, pad, inContent){
|
|
if(typeof pad == 'number'){
|
|
pad = {left: pad, right:pad, top:pad, bottom:pad};
|
|
}
|
|
pad = pad || this.defaultPadding;
|
|
var b = getEl(this.getEl()).getBox();
|
|
var ce = getEl(constrainTo);
|
|
var c = ce.dom == document.body ? { x: 0, y: 0,
|
|
width: YAHOO.util.Dom.getViewportWidth(),
|
|
height: YAHOO.util.Dom.getViewportHeight()} : ce.getBox(inContent || false);
|
|
var topSpace = b.y - c.y;
|
|
var leftSpace = b.x - c.x;
|
|
|
|
this.resetConstraints();
|
|
this.setXConstraint(leftSpace - (pad.left||0), // left
|
|
c.width - leftSpace - b.width - (pad.right||0) //right
|
|
);
|
|
this.setYConstraint(topSpace - (pad.top||0), //top
|
|
c.height - topSpace - b.height - (pad.bottom||0) //bottom
|
|
);
|
|
}
|
|
}
|