Ext-more.js
资源名称:ext-3.1.0.zip [点击查看]
上传用户:dawnssy
上传日期:2022-08-06
资源大小:9345k
文件大小:25k
源码类别:
JavaScript
开发平台:
JavaScript
- /*!
- * Ext JS Library 3.1.0
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
- /**
- * @class Ext
- */
- Ext.ns("Ext.grid", "Ext.list", "Ext.dd", "Ext.tree", "Ext.form", "Ext.menu",
- "Ext.state", "Ext.layout", "Ext.app", "Ext.ux", "Ext.chart", "Ext.direct");
- /**
- * Namespace alloted for extensions to the framework.
- * @property ux
- * @type Object
- */
- Ext.apply(Ext, function(){
- var E = Ext,
- idSeed = 0,
- scrollWidth = null;
- return {
- /**
- * A reusable empty function
- * @property
- * @type Function
- */
- emptyFn : function(){},
- /**
- * URL to a 1x1 transparent gif image used by Ext to create inline icons with CSS background images.
- * In older versions of IE, this defaults to "http://extjs.com/s.gif" and you should change this to a URL on your server.
- * For other browsers it uses an inline data URL.
- * @type String
- */
- BLANK_IMAGE_URL : Ext.isIE6 || Ext.isIE7 || Ext.isAir ?
- 'http:/' + '/extjs.com/s.gif' :
- 'data:image/gif;base64,R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==',
- extendX : function(supr, fn){
- return Ext.extend(supr, fn(supr.prototype));
- },
- /**
- * Returns the current HTML document object as an {@link Ext.Element}.
- * @return Ext.Element The document
- */
- getDoc : function(){
- return Ext.get(document);
- },
- /**
- * Utility method for validating that a value is numeric, returning the specified default value if it is not.
- * @param {Mixed} value Should be a number, but any type will be handled appropriately
- * @param {Number} defaultValue The value to return if the original value is non-numeric
- * @return {Number} Value, if numeric, else defaultValue
- */
- num : function(v, defaultValue){
- v = Number(Ext.isEmpty(v) || Ext.isBoolean(v) ? NaN : v);
- return isNaN(v) ? defaultValue : v;
- },
- /**
- * <p>Utility method for returning a default value if the passed value is empty.</p>
- * <p>The value is deemed to be empty if it is<div class="mdetail-params"><ul>
- * <li>null</li>
- * <li>undefined</li>
- * <li>an empty array</li>
- * <li>a zero length string (Unless the <tt>allowBlank</tt> parameter is <tt>true</tt>)</li>
- * </ul></div>
- * @param {Mixed} value The value to test
- * @param {Mixed} defaultValue The value to return if the original value is empty
- * @param {Boolean} allowBlank (optional) true to allow zero length strings to qualify as non-empty (defaults to false)
- * @return {Mixed} value, if non-empty, else defaultValue
- */
- value : function(v, defaultValue, allowBlank){
- return Ext.isEmpty(v, allowBlank) ? defaultValue : v;
- },
- /**
- * Escapes the passed string for use in a regular expression
- * @param {String} str
- * @return {String}
- */
- escapeRe : function(s) {
- return s.replace(/([-.*+?^${}()|[]/\])/g, "\$1");
- },
- sequence : function(o, name, fn, scope){
- o[name] = o[name].createSequence(fn, scope);
- },
- /**
- * Applies event listeners to elements by selectors when the document is ready.
- * The event name is specified with an <tt>@</tt> suffix.
- * <pre><code>
- Ext.addBehaviors({
- // add a listener for click on all anchors in element with id foo
- '#foo a@click' : function(e, t){
- // do something
- },
- // add the same listener to multiple selectors (separated by comma BEFORE the @)
- '#foo a, #bar span.some-class@mouseover' : function(){
- // do something
- }
- });
- * </code></pre>
- * @param {Object} obj The list of behaviors to apply
- */
- addBehaviors : function(o){
- if(!Ext.isReady){
- Ext.onReady(function(){
- Ext.addBehaviors(o);
- });
- } else {
- var cache = {}, // simple cache for applying multiple behaviors to same selector does query multiple times
- parts,
- b,
- s;
- for (b in o) {
- if ((parts = b.split('@'))[1]) { // for Object prototype breakers
- s = parts[0];
- if(!cache[s]){
- cache[s] = Ext.select(s);
- }
- cache[s].on(parts[1], o[b]);
- }
- }
- cache = null;
- }
- },
- /**
- * Utility method for getting the width of the browser scrollbar. This can differ depending on
- * operating system settings, such as the theme or font size.
- * @param {Boolean} force (optional) true to force a recalculation of the value.
- * @return {Number} The width of the scrollbar.
- */
- getScrollBarWidth: function(force){
- if(!Ext.isReady){
- return 0;
- }
- if(force === true || scrollWidth === null){
- // Append our div, do our calculation and then remove it
- var div = Ext.getBody().createChild('<div class="x-hide-offsets" style="width:100px;height:50px;overflow:hidden;"><div style="height:200px;"></div></div>'),
- child = div.child('div', true);
- var w1 = child.offsetWidth;
- div.setStyle('overflow', (Ext.isWebKit || Ext.isGecko) ? 'auto' : 'scroll');
- var w2 = child.offsetWidth;
- div.remove();
- // Need to add 2 to ensure we leave enough space
- scrollWidth = w1 - w2 + 2;
- }
- return scrollWidth;
- },
- // deprecated
- combine : function(){
- var as = arguments, l = as.length, r = [];
- for(var i = 0; i < l; i++){
- var a = as[i];
- if(Ext.isArray(a)){
- r = r.concat(a);
- }else if(a.length !== undefined && !a.substr){
- r = r.concat(Array.prototype.slice.call(a, 0));
- }else{
- r.push(a);
- }
- }
- return r;
- },
- /**
- * Copies a set of named properties fom the source object to the destination object.
- * <p>example:<pre><code>
- ImageComponent = Ext.extend(Ext.BoxComponent, {
- initComponent: function() {
- this.autoEl = { tag: 'img' };
- MyComponent.superclass.initComponent.apply(this, arguments);
- this.initialBox = Ext.copyTo({}, this.initialConfig, 'x,y,width,height');
- }
- });
- * </code></pre>
- * @param {Object} The destination object.
- * @param {Object} The source object.
- * @param {Array/String} Either an Array of property names, or a comma-delimited list
- * of property names to copy.
- * @return {Object} The modified object.
- */
- copyTo : function(dest, source, names){
- if(Ext.isString(names)){
- names = names.split(/[,;s]/);
- }
- Ext.each(names, function(name){
- if(source.hasOwnProperty(name)){
- dest[name] = source[name];
- }
- }, this);
- return dest;
- },
- /**
- * Attempts to destroy any objects passed to it by removing all event listeners, removing them from the
- * DOM (if applicable) and calling their destroy functions (if available). This method is primarily
- * intended for arguments of type {@link Ext.Element} and {@link Ext.Component}, but any subclass of
- * {@link Ext.util.Observable} can be passed in. Any number of elements and/or components can be
- * passed into this function in a single call as separate arguments.
- * @param {Mixed} arg1 An {@link Ext.Element}, {@link Ext.Component}, or an Array of either of these to destroy
- * @param {Mixed} arg2 (optional)
- * @param {Mixed} etc... (optional)
- */
- destroy : function(){
- Ext.each(arguments, function(arg){
- if(arg){
- if(Ext.isArray(arg)){
- this.destroy.apply(this, arg);
- }else if(Ext.isFunction(arg.destroy)){
- arg.destroy();
- }else if(arg.dom){
- arg.remove();
- }
- }
- }, this);
- },
- /**
- * Attempts to destroy and then remove a set of named properties of the passed object.
- * @param {Object} o The object (most likely a Component) who's properties you wish to destroy.
- * @param {Mixed} arg1 The name of the property to destroy and remove from the object.
- * @param {Mixed} etc... More property names to destroy and remove.
- */
- destroyMembers : function(o, arg1, arg2, etc){
- for(var i = 1, a = arguments, len = a.length; i < len; i++) {
- Ext.destroy(o[a[i]]);
- delete o[a[i]];
- }
- },
- /**
- * Creates a copy of the passed Array with falsy values removed.
- * @param {Array/NodeList} arr The Array from which to remove falsy values.
- * @return {Array} The new, compressed Array.
- */
- clean : function(arr){
- var ret = [];
- Ext.each(arr, function(v){
- if(!!v){
- ret.push(v);
- }
- });
- return ret;
- },
- /**
- * Creates a copy of the passed Array, filtered to contain only unique values.
- * @param {Array} arr The Array to filter
- * @return {Array} The new Array containing unique values.
- */
- unique : function(arr){
- var ret = [],
- collect = {};
- Ext.each(arr, function(v) {
- if(!collect[v]){
- ret.push(v);
- }
- collect[v] = true;
- });
- return ret;
- },
- /**
- * Recursively flattens into 1-d Array. Injects Arrays inline.
- * @param {Array} arr The array to flatten
- * @return {Array} The new, flattened array.
- */
- flatten : function(arr){
- var worker = [];
- function rFlatten(a) {
- Ext.each(a, function(v) {
- if(Ext.isArray(v)){
- rFlatten(v);
- }else{
- worker.push(v);
- }
- });
- return worker;
- }
- return rFlatten(arr);
- },
- /**
- * Returns the minimum value in the Array.
- * @param {Array|NodeList} arr The Array from which to select the minimum value.
- * @param {Function} comp (optional) a function to perform the comparision which determines minimization.
- * If omitted the "<" operator will be used. Note: gt = 1; eq = 0; lt = -1
- * @return {Object} The minimum value in the Array.
- */
- min : function(arr, comp){
- var ret = arr[0];
- comp = comp || function(a,b){ return a < b ? -1 : 1; };
- Ext.each(arr, function(v) {
- ret = comp(ret, v) == -1 ? ret : v;
- });
- return ret;
- },
- /**
- * Returns the maximum value in the Array
- * @param {Array|NodeList} arr The Array from which to select the maximum value.
- * @param {Function} comp (optional) a function to perform the comparision which determines maximization.
- * If omitted the ">" operator will be used. Note: gt = 1; eq = 0; lt = -1
- * @return {Object} The maximum value in the Array.
- */
- max : function(arr, comp){
- var ret = arr[0];
- comp = comp || function(a,b){ return a > b ? 1 : -1; };
- Ext.each(arr, function(v) {
- ret = comp(ret, v) == 1 ? ret : v;
- });
- return ret;
- },
- /**
- * Calculates the mean of the Array
- * @param {Array} arr The Array to calculate the mean value of.
- * @return {Number} The mean.
- */
- mean : function(arr){
- return Ext.sum(arr) / arr.length;
- },
- /**
- * Calculates the sum of the Array
- * @param {Array} arr The Array to calculate the sum value of.
- * @return {Number} The sum.
- */
- sum : function(arr){
- var ret = 0;
- Ext.each(arr, function(v) {
- ret += v;
- });
- return ret;
- },
- /**
- * Partitions the set into two sets: a true set and a false set.
- * Example:
- * Example2:
- * <pre><code>
- // Example 1:
- Ext.partition([true, false, true, true, false]); // [[true, true, true], [false, false]]
- // Example 2:
- Ext.partition(
- Ext.query("p"),
- function(val){
- return val.className == "class1"
- }
- );
- // true are those paragraph elements with a className of "class1",
- // false set are those that do not have that className.
- * </code></pre>
- * @param {Array|NodeList} arr The array to partition
- * @param {Function} truth (optional) a function to determine truth. If this is omitted the element
- * itself must be able to be evaluated for its truthfulness.
- * @return {Array} [true<Array>,false<Array>]
- */
- partition : function(arr, truth){
- var ret = [[],[]];
- Ext.each(arr, function(v, i, a) {
- ret[ (truth && truth(v, i, a)) || (!truth && v) ? 0 : 1].push(v);
- });
- return ret;
- },
- /**
- * Invokes a method on each item in an Array.
- * <pre><code>
- // Example:
- Ext.invoke(Ext.query("p"), "getAttribute", "id");
- // [el1.getAttribute("id"), el2.getAttribute("id"), ..., elN.getAttribute("id")]
- * </code></pre>
- * @param {Array|NodeList} arr The Array of items to invoke the method on.
- * @param {String} methodName The method name to invoke.
- * @param {Anything} ... Arguments to send into the method invocation.
- * @return {Array} The results of invoking the method on each item in the array.
- */
- invoke : function(arr, methodName){
- var ret = [],
- args = Array.prototype.slice.call(arguments, 2);
- Ext.each(arr, function(v,i) {
- if (v && Ext.isFunction(v[methodName])) {
- ret.push(v[methodName].apply(v, args));
- } else {
- ret.push(undefined);
- }
- });
- return ret;
- },
- /**
- * Plucks the value of a property from each item in the Array
- * <pre><code>
- // Example:
- Ext.pluck(Ext.query("p"), "className"); // [el1.className, el2.className, ..., elN.className]
- * </code></pre>
- * @param {Array|NodeList} arr The Array of items to pluck the value from.
- * @param {String} prop The property name to pluck from each element.
- * @return {Array} The value from each item in the Array.
- */
- pluck : function(arr, prop){
- var ret = [];
- Ext.each(arr, function(v) {
- ret.push( v[prop] );
- });
- return ret;
- },
- /**
- * <p>Zips N sets together.</p>
- * <pre><code>
- // Example 1:
- Ext.zip([1,2,3],[4,5,6]); // [[1,4],[2,5],[3,6]]
- // Example 2:
- Ext.zip(
- [ "+", "-", "+"],
- [ 12, 10, 22],
- [ 43, 15, 96],
- function(a, b, c){
- return "$" + a + "" + b + "." + c
- }
- ); // ["$+12.43", "$-10.15", "$+22.96"]
- * </code></pre>
- * @param {Arrays|NodeLists} arr This argument may be repeated. Array(s) to contribute values.
- * @param {Function} zipper (optional) The last item in the argument list. This will drive how the items are zipped together.
- * @return {Array} The zipped set.
- */
- zip : function(){
- var parts = Ext.partition(arguments, function( val ){ return !Ext.isFunction(val); }),
- arrs = parts[0],
- fn = parts[1][0],
- len = Ext.max(Ext.pluck(arrs, "length")),
- ret = [];
- for (var i = 0; i < len; i++) {
- ret[i] = [];
- if(fn){
- ret[i] = fn.apply(fn, Ext.pluck(arrs, i));
- }else{
- for (var j = 0, aLen = arrs.length; j < aLen; j++){
- ret[i].push( arrs[j][i] );
- }
- }
- }
- return ret;
- },
- /**
- * This is shorthand reference to {@link Ext.ComponentMgr#get}.
- * Looks up an existing {@link Ext.Component Component} by {@link Ext.Component#id id}
- * @param {String} id The component {@link Ext.Component#id id}
- * @return Ext.Component The Component, <tt>undefined</tt> if not found, or <tt>null</tt> if a
- * Class was found.
- */
- getCmp : function(id){
- return Ext.ComponentMgr.get(id);
- },
- /**
- * By default, Ext intelligently decides whether floating elements should be shimmed. If you are using flash,
- * you may want to set this to true.
- * @type Boolean
- */
- useShims: E.isIE6 || (E.isMac && E.isGecko2),
- // inpired by a similar function in mootools library
- /**
- * Returns the type of object that is passed in. If the object passed in is null or undefined it
- * return false otherwise it returns one of the following values:<div class="mdetail-params"><ul>
- * <li><b>string</b>: If the object passed is a string</li>
- * <li><b>number</b>: If the object passed is a number</li>
- * <li><b>boolean</b>: If the object passed is a boolean value</li>
- * <li><b>date</b>: If the object passed is a Date object</li>
- * <li><b>function</b>: If the object passed is a function reference</li>
- * <li><b>object</b>: If the object passed is an object</li>
- * <li><b>array</b>: If the object passed is an array</li>
- * <li><b>regexp</b>: If the object passed is a regular expression</li>
- * <li><b>element</b>: If the object passed is a DOM Element</li>
- * <li><b>nodelist</b>: If the object passed is a DOM NodeList</li>
- * <li><b>textnode</b>: If the object passed is a DOM text node and contains something other than whitespace</li>
- * <li><b>whitespace</b>: If the object passed is a DOM text node and contains only whitespace</li>
- * </ul></div>
- * @param {Mixed} object
- * @return {String}
- */
- type : function(o){
- if(o === undefined || o === null){
- return false;
- }
- if(o.htmlElement){
- return 'element';
- }
- var t = typeof o;
- if(t == 'object' && o.nodeName) {
- switch(o.nodeType) {
- case 1: return 'element';
- case 3: return (/S/).test(o.nodeValue) ? 'textnode' : 'whitespace';
- }
- }
- if(t == 'object' || t == 'function') {
- switch(o.constructor) {
- case Array: return 'array';
- case RegExp: return 'regexp';
- case Date: return 'date';
- }
- if(Ext.isNumber(o.length) && Ext.isFunction(o.item)) {
- return 'nodelist';
- }
- }
- return t;
- },
- intercept : function(o, name, fn, scope){
- o[name] = o[name].createInterceptor(fn, scope);
- },
- // internal
- callback : function(cb, scope, args, delay){
- if(Ext.isFunction(cb)){
- if(delay){
- cb.defer(delay, scope, args || []);
- }else{
- cb.apply(scope, args || []);
- }
- }
- }
- };
- }());
- /**
- * @class Function
- * These functions are available on every Function object (any JavaScript function).
- */
- Ext.apply(Function.prototype, {
- /**
- * Create a combined function call sequence of the original function + the passed function.
- * The resulting function returns the results of the original function.
- * The passed fcn is called with the parameters of the original function. Example usage:
- * <pre><code>
- var sayHi = function(name){
- alert('Hi, ' + name);
- }
- sayHi('Fred'); // alerts "Hi, Fred"
- var sayGoodbye = sayHi.createSequence(function(name){
- alert('Bye, ' + name);
- });
- sayGoodbye('Fred'); // both alerts show
- </code></pre>
- * @param {Function} fcn The function to sequence
- * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the passed function is executed.
- * <b>If omitted, defaults to the scope in which the original function is called or the browser window.</b>
- * @return {Function} The new function
- */
- createSequence : function(fcn, scope){
- var method = this;
- return !Ext.isFunction(fcn) ?
- this :
- function(){
- var retval = method.apply(this || window, arguments);
- fcn.apply(scope || this || window, arguments);
- return retval;
- };
- }
- });
- /**
- * @class String
- * These functions are available as static methods on the JavaScript String object.
- */
- Ext.applyIf(String, {
- /**
- * Escapes the passed string for ' and
- * @param {String} string The string to escape
- * @return {String} The escaped string
- * @static
- */
- escape : function(string) {
- return string.replace(/('|\)/g, "\$1");
- },
- /**
- * Pads the left side of a string with a specified character. This is especially useful
- * for normalizing number and date strings. Example usage:
- * <pre><code>
- var s = String.leftPad('123', 5, '0');
- // s now contains the string: '00123'
- * </code></pre>
- * @param {String} string The original string
- * @param {Number} size The total length of the output string
- * @param {String} char (optional) The character with which to pad the original string (defaults to empty string " ")
- * @return {String} The padded string
- * @static
- */
- leftPad : function (val, size, ch) {
- var result = String(val);
- if(!ch) {
- ch = " ";
- }
- while (result.length < size) {
- result = ch + result;
- }
- return result;
- }
- });
- /**
- * Utility function that allows you to easily switch a string between two alternating values. The passed value
- * is compared to the current string, and if they are equal, the other value that was passed in is returned. If
- * they are already different, the first value passed in is returned. Note that this method returns the new value
- * but does not change the current string.
- * <pre><code>
- // alternate sort directions
- sort = sort.toggle('ASC', 'DESC');
- // instead of conditional logic:
- sort = (sort == 'ASC' ? 'DESC' : 'ASC');
- </code></pre>
- * @param {String} value The value to compare to the current string
- * @param {String} other The new value to use if the string already equals the first value passed in
- * @return {String} The new value
- */
- String.prototype.toggle = function(value, other){
- return this == value ? other : value;
- };
- /**
- * Trims whitespace from either end of a string, leaving spaces within the string intact. Example:
- * <pre><code>
- var s = ' foo bar ';
- alert('-' + s + '-'); //alerts "- foo bar -"
- alert('-' + s.trim() + '-'); //alerts "-foo bar-"
- </code></pre>
- * @return {String} The trimmed string
- */
- String.prototype.trim = function(){
- var re = /^s+|s+$/g;
- return function(){ return this.replace(re, ""); };
- }();
- // here to prevent dependency on Date.js
- /**
- Returns the number of milliseconds between this date and date
- @param {Date} date (optional) Defaults to now
- @return {Number} The diff in milliseconds
- @member Date getElapsed
- */
- Date.prototype.getElapsed = function(date) {
- return Math.abs((date || new Date()).getTime()-this.getTime());
- };
- /**
- * @class Number
- */
- Ext.applyIf(Number.prototype, {
- /**
- * Checks whether or not the current number is within a desired range. If the number is already within the
- * range it is returned, otherwise the min or max value is returned depending on which side of the range is
- * exceeded. Note that this method returns the constrained value but does not change the current number.
- * @param {Number} min The minimum number in the range
- * @param {Number} max The maximum number in the range
- * @return {Number} The constrained value if outside the range, otherwise the current value
- */
- constrain : function(min, max){
- return Math.min(Math.max(this, min), max);
- }
- });