Element.style.js
资源名称:ext-3.0.0.zip [点击查看]
上传用户:shuoshiled
上传日期:2018-01-28
资源大小:10124k
文件大小:17k
源码类别:
中间件编程
开发平台:
JavaScript
- /*! * Ext JS Library 3.0.0 * Copyright(c) 2006-2009 Ext JS, LLC * licensing@extjs.com * http://www.extjs.com/license */ /**
- * @class Ext.Element
- */
- Ext.Element.addMethods(function(){
- // local style camelizing for speed
- var propCache = {},
- camelRe = /(-[a-z])/gi,
- classReCache = {},
- view = document.defaultView,
- propFloat = Ext.isIE ? 'styleFloat' : 'cssFloat',
- opacityRe = /alpha(opacity=(.*))/i,
- trimRe = /^s+|s+$/g,
- EL = Ext.Element,
- PADDING = "padding",
- MARGIN = "margin",
- BORDER = "border",
- LEFT = "-left",
- RIGHT = "-right",
- TOP = "-top",
- BOTTOM = "-bottom",
- WIDTH = "-width",
- MATH = Math,
- HIDDEN = 'hidden',
- ISCLIPPED = 'isClipped',
- OVERFLOW = 'overflow',
- OVERFLOWX = 'overflow-x',
- OVERFLOWY = 'overflow-y',
- ORIGINALCLIP = 'originalClip',
- // special markup used throughout Ext when box wrapping elements
- borders = {l: BORDER + LEFT + WIDTH, r: BORDER + RIGHT + WIDTH, t: BORDER + TOP + WIDTH, b: BORDER + BOTTOM + WIDTH},
- paddings = {l: PADDING + LEFT, r: PADDING + RIGHT, t: PADDING + TOP, b: PADDING + BOTTOM},
- margins = {l: MARGIN + LEFT, r: MARGIN + RIGHT, t: MARGIN + TOP, b: MARGIN + BOTTOM},
- data = Ext.Element.data;
- // private
- function camelFn(m, a) {
- return a.charAt(1).toUpperCase();
- }
- // private (needs to be called => addStyles.call(this, sides, styles))
- function addStyles(sides, styles){
- var val = 0;
- Ext.each(sides.match(/w/g), function(s) {
- if (s = parseInt(this.getStyle(styles[s]), 10)) {
- val += MATH.abs(s);
- }
- },
- this);
- return val;
- }
- function chkCache(prop) {
- return propCache[prop] || (propCache[prop] = prop == 'float' ? propFloat : prop.replace(camelRe, camelFn));
- }
- return {
- // private ==> used by Fx
- adjustWidth : function(width) {
- var me = this;
- var isNum = (typeof width == "number");
- if(isNum && me.autoBoxAdjust && !me.isBorderBox()){
- width -= (me.getBorderWidth("lr") + me.getPadding("lr"));
- }
- return (isNum && width < 0) ? 0 : width;
- },
- // private ==> used by Fx
- adjustHeight : function(height) {
- var me = this;
- var isNum = (typeof height == "number");
- if(isNum && me.autoBoxAdjust && !me.isBorderBox()){
- height -= (me.getBorderWidth("tb") + me.getPadding("tb"));
- }
- return (isNum && height < 0) ? 0 : height;
- },
- /**
- * Adds one or more CSS classes to the element. Duplicate classes are automatically filtered out.
- * @param {String/Array} className The CSS class to add, or an array of classes
- * @return {Ext.Element} this
- */
- addClass : function(className){
- var me = this;
- Ext.each(className, function(v) {
- me.dom.className += (!me.hasClass(v) && v ? " " + v : "");
- });
- return me;
- },
- /**
- * Adds one or more CSS classes to this element and removes the same class(es) from all siblings.
- * @param {String/Array} className The CSS class to add, or an array of classes
- * @return {Ext.Element} this
- */
- radioClass : function(className){
- Ext.each(this.dom.parentNode.childNodes, function(v) {
- if(v.nodeType == 1) {
- Ext.fly(v, '_internal').removeClass(className);
- }
- });
- return this.addClass(className);
- },
- /**
- * Removes one or more CSS classes from the element.
- * @param {String/Array} className The CSS class to remove, or an array of classes
- * @return {Ext.Element} this
- */
- removeClass : function(className){
- var me = this;
- if (me.dom.className) {
- Ext.each(className, function(v) {
- me.dom.className = me.dom.className.replace(
- classReCache[v] = classReCache[v] || new RegExp('(?:^|\s+)' + v + '(?:\s+|$)', "g"),
- " ");
- });
- }
- return me;
- },
- /**
- * Toggles the specified CSS class on this element (removes it if it already exists, otherwise adds it).
- * @param {String} className The CSS class to toggle
- * @return {Ext.Element} this
- */
- toggleClass : function(className){
- return this.hasClass(className) ? this.removeClass(className) : this.addClass(className);
- },
- /**
- * Checks if the specified CSS class exists on this element's DOM node.
- * @param {String} className The CSS class to check for
- * @return {Boolean} True if the class exists, else false
- */
- hasClass : function(className){
- return className && (' '+this.dom.className+' ').indexOf(' '+className+' ') != -1;
- },
- /**
- * Replaces a CSS class on the element with another. If the old name does not exist, the new name will simply be added.
- * @param {String} oldClassName The CSS class to replace
- * @param {String} newClassName The replacement CSS class
- * @return {Ext.Element} this
- */
- replaceClass : function(oldClassName, newClassName){
- return this.removeClass(oldClassName).addClass(newClassName);
- },
- isStyle : function(style, val) {
- return this.getStyle(style) == val;
- },
- /**
- * Normalizes currentStyle and computedStyle.
- * @param {String} property The style property whose value is returned.
- * @return {String} The current value of the style property for this element.
- */
- getStyle : function(){
- return view && view.getComputedStyle ?
- function(prop){
- var el = this.dom,
- v,
- cs;
- if(el == document) return null;
- prop = chkCache(prop);
- return (v = el.style[prop]) ? v :
- (cs = view.getComputedStyle(el, "")) ? cs[prop] : null;
- } :
- function(prop){
- var el = this.dom,
- m,
- cs;
- if(el == document) return null;
- if (prop == 'opacity') {
- if (el.style.filter.match) {
- if(m = el.style.filter.match(opacityRe)){
- var fv = parseFloat(m[1]);
- if(!isNaN(fv)){
- return fv ? fv / 100 : 0;
- }
- }
- }
- return 1;
- }
- prop = chkCache(prop);
- return el.style[prop] || ((cs = el.currentStyle) ? cs[prop] : null);
- };
- }(),
- /**
- * Return the CSS color for the specified CSS attribute. rgb, 3 digit (like #fff) and valid values
- * are convert to standard 6 digit hex color.
- * @param {String} attr The css attribute
- * @param {String} defaultValue The default value to use when a valid color isn't found
- * @param {String} prefix (optional) defaults to #. Use an empty string when working with
- * color anims.
- */
- getColor : function(attr, defaultValue, prefix){
- var v = this.getStyle(attr),
- color = prefix || '#',
- h;
- if(!v || /transparent|inherit/.test(v)){
- return defaultValue;
- }
- if(/^r/.test(v)){
- Ext.each(v.slice(4, v.length -1).split(','), function(s){
- h = parseInt(s, 10);
- color += (h < 16 ? '0' : '') + h.toString(16);
- });
- }else{
- v = v.replace('#', '');
- color += v.length == 3 ? v.replace(/^(w)(w)(w)$/, '$1$1$2$2$3$3') : v;
- }
- return(color.length > 5 ? color.toLowerCase() : defaultValue);
- },
- /**
- * Wrapper for setting style properties, also takes single object parameter of multiple styles.
- * @param {String/Object} property The style property to be set, or an object of multiple styles.
- * @param {String} value (optional) The value to apply to the given property, or null if an object was passed.
- * @return {Ext.Element} this
- */
- setStyle : function(prop, value){
- var tmp,
- style,
- camel;
- if (!Ext.isObject(prop)) {
- tmp = {};
- tmp[prop] = value;
- prop = tmp;
- }
- for (style in prop) {
- value = prop[style];
- style == 'opacity' ?
- this.setOpacity(value) :
- this.dom.style[chkCache(style)] = value;
- }
- return this;
- },
- /**
- * Set the opacity of the element
- * @param {Float} opacity The new opacity. 0 = transparent, .5 = 50% visibile, 1 = fully visible, etc
- * @param {Boolean/Object} animate (optional) a standard Element animation config object or <tt>true</tt> for
- * the default animation (<tt>{duration: .35, easing: 'easeIn'}</tt>)
- * @return {Ext.Element} this
- */
- setOpacity : function(opacity, animate){
- var me = this,
- s = me.dom.style;
- if(!animate || !me.anim){
- if(Ext.isIE){
- var opac = opacity < 1 ? 'alpha(opacity=' + opacity * 100 + ')' : '',
- val = s.filter.replace(opacityRe, '').replace(trimRe, '');
- s.zoom = 1;
- s.filter = val + (val.length > 0 ? ' ' : '') + opac;
- }else{
- s.opacity = opacity;
- }
- }else{
- me.anim({opacity: {to: opacity}}, me.preanim(arguments, 1), null, .35, 'easeIn');
- }
- return me;
- },
- /**
- * Clears any opacity settings from this element. Required in some cases for IE.
- * @return {Ext.Element} this
- */
- clearOpacity : function(){
- var style = this.dom.style;
- if(Ext.isIE){
- if(!Ext.isEmpty(style.filter)){
- style.filter = style.filter.replace(opacityRe, '').replace(trimRe, '');
- }
- }else{
- style.opacity = style['-moz-opacity'] = style['-khtml-opacity'] = '';
- }
- return this;
- },
- /**
- * Returns the offset height of the element
- * @param {Boolean} contentHeight (optional) true to get the height minus borders and padding
- * @return {Number} The element's height
- */
- getHeight : function(contentHeight){
- var me = this,
- dom = me.dom,
- h = MATH.max(dom.offsetHeight, dom.clientHeight) || 0;
- h = !contentHeight ? h : h - me.getBorderWidth("tb") - me.getPadding("tb");
- return h < 0 ? 0 : h;
- },
- /**
- * Returns the offset width of the element
- * @param {Boolean} contentWidth (optional) true to get the width minus borders and padding
- * @return {Number} The element's width
- */
- getWidth : function(contentWidth){
- var me = this,
- dom = me.dom,
- w = MATH.max(dom.offsetWidth, dom.clientWidth) || 0;
- w = !contentWidth ? w : w - me.getBorderWidth("lr") - me.getPadding("lr");
- return w < 0 ? 0 : w;
- },
- /**
- * Set the width of this Element.
- * @param {Mixed} width The new width. This may be one of:<div class="mdetail-params"><ul>
- * <li>A Number specifying the new width in this Element's {@link #defaultUnit}s (by default, pixels).</li>
- * <li>A String used to set the CSS width style. Animation may <b>not</b> be used.
- * </ul></div>
- * @param {Boolean/Object} animate (optional) true for the default animation or a standard Element animation config object
- * @return {Ext.Element} this
- */
- setWidth : function(width, animate){
- var me = this;
- width = me.adjustWidth(width);
- !animate || !me.anim ?
- me.dom.style.width = me.addUnits(width) :
- me.anim({width : {to : width}}, me.preanim(arguments, 1));
- return me;
- },
- /**
- * Set the height of this Element.
- * <pre><code>
- // change the height to 200px and animate with default configuration
- Ext.fly('elementId').setHeight(200, true);
- // change the height to 150px and animate with a custom configuration
- Ext.fly('elId').setHeight(150, {
- duration : .5, // animation will have a duration of .5 seconds
- // will change the content to "finished"
- callback: function(){ this.{@link #update}("finished"); }
- });
- * </code></pre>
- * @param {Mixed} height The new height. This may be one of:<div class="mdetail-params"><ul>
- * <li>A Number specifying the new height in this Element's {@link #defaultUnit}s (by default, pixels.)</li>
- * <li>A String used to set the CSS height style. Animation may <b>not</b> be used.</li>
- * </ul></div>
- * @param {Boolean/Object} animate (optional) true for the default animation or a standard Element animation config object
- * @return {Ext.Element} this
- */
- setHeight : function(height, animate){
- var me = this;
- height = me.adjustHeight(height);
- !animate || !me.anim ?
- me.dom.style.height = me.addUnits(height) :
- me.anim({height : {to : height}}, me.preanim(arguments, 1));
- return me;
- },
- /**
- * Gets the width of the border(s) for the specified side(s)
- * @param {String} side Can be t, l, r, b or any combination of those to add multiple values. For example,
- * passing <tt>'lr'</tt> would get the border <b><u>l</u></b>eft width + the border <b><u>r</u></b>ight width.
- * @return {Number} The width of the sides passed added together
- */
- getBorderWidth : function(side){
- return addStyles.call(this, side, borders);
- },
- /**
- * Gets the width of the padding(s) for the specified side(s)
- * @param {String} side Can be t, l, r, b or any combination of those to add multiple values. For example,
- * passing <tt>'lr'</tt> would get the padding <b><u>l</u></b>eft + the padding <b><u>r</u></b>ight.
- * @return {Number} The padding of the sides passed added together
- */
- getPadding : function(side){
- return addStyles.call(this, side, paddings);
- },
- /**
- * Store the current overflow setting and clip overflow on the element - use <tt>{@link #unclip}</tt> to remove
- * @return {Ext.Element} this
- */
- clip : function(){
- var me = this,
- dom = me.dom;
- if(!data(dom, ISCLIPPED)){
- data(dom, ISCLIPPED, true);
- data(dom, ORIGINALCLIP, {
- o: me.getStyle(OVERFLOW),
- x: me.getStyle(OVERFLOWX),
- y: me.getStyle(OVERFLOWY)
- });
- me.setStyle(OVERFLOW, HIDDEN);
- me.setStyle(OVERFLOWX, HIDDEN);
- me.setStyle(OVERFLOWY, HIDDEN);
- }
- return me;
- },
- /**
- * Return clipping (overflow) to original clipping before <tt>{@link #clip}</tt> was called
- * @return {Ext.Element} this
- */
- unclip : function(){
- var me = this,
- dom = me.dom;
- if(data(dom, ISCLIPPED)){
- data(dom, ISCLIPPED, false);
- var o = data(dom, ORIGINALCLIP);
- if(o.o){
- me.setStyle(OVERFLOW, o.o);
- }
- if(o.x){
- me.setStyle(OVERFLOWX, o.x);
- }
- if(o.y){
- me.setStyle(OVERFLOWY, o.y);
- }
- }
- return me;
- },
- addStyles : addStyles,
- margins : margins
- }
- }()
- );