mass Framework css模块
这里实际包含两个文件,在IE9中,它完全支持W3C那种精确获取样式的API,因此无需使用currentStyle与runtimeStyle,因此对于旧式IE的兼容单独放到一个JS文件中。
css.js
//========================================= // 样式操作模块 by 司徒正美 2011.8.23 //========================================= (function(global,DOC){ var dom = global[DOC.URL.replace(/(#.+|\W)/g,'')], deps = global.getComputedStyle ? "node" : "node,css_ie" ; dom.define("css", deps, function(){ dom.log("已加载css模块") var cssFloat = dom.support.cssFloat ? 'cssFloat': 'styleFloat',rcap = /-([a-z])/g,capfn = function($0,$1){ return $1.toUpperCase(); }, adapter = dom.cssAdapter = dom.cssAdapter || {}; function cssCache(name){ return cssCache[name] || (cssCache[name] = name == 'float' ? cssFloat : name.replace(rcap, capfn)); } dom.mix(dom, { //http://www.cnblogs.com/rubylouvre/archive/2011/03/28/1998223.html cssName : function (name){ var prefixes = ['', '-ms-','-moz-', '-webkit-', '-khtml-', '-o-','ms-'] dom.cssName = function(name, target, test){ target = target || document.documentElement.style; for (var i=0, l=prefixes.length; i
css_ie.js
(function(global,DOC){ var dom = global[DOC.URL.replace(/(#.+|\W)/g,'')]; dom.define("css_ie", function(){ dom.log("已加载css_ie模块") var adapter = dom.cssAdapter = {}; //========================= 处理 opacity ========================= var ropacity = /opacity=([^)]*)/i, ralpha = /alpha\([^)]*\)/i, rnumpx = /^-?\d+(?:px)?$/i, rnum = /^-?\d/; adapter["opacity:get"] = function(node,op){ //这是最快的获取IE透明值的方式,不需要动用正则了! if(node.filters.alpha){ op = node.filters.alpha.opacity; }else if(node.filters["DXImageTransform.Microsoft.Alpha"]){ op = node.filters["DXImageTransform.Microsoft.Alpha"].opacity }else{ op = (node.currentStyle.filter ||"opacity=100").match(ropacity)[1]; } return (~~op)/100; } adapter["opacity:set"] = function(node, name, value){ var currentStyle = node.currentStyle, style = node.style; if(!currentStyle.hasLayout) style.zoom = 1;//让元素获得hasLayout value = (value > 0.999) ? 1: (value
相关测试:
dom.define("test/css","spec,css",function(){ dom.addTestModule("样式操作模块-css",{ "dom.fn.css":function(){ var el = dom('<div ' + ' + 'background: transparent; ' + 'font-size:16px;' + 'float: left; ' + 'border: 5px solid rgb(0,0,0);">css test</div>').appendTo("body"); el = dom("#test-div") expect(el.css( 'float')).eq('left');//1 expect(el.css( 'position')).eq('static');//2 expect(el.css( 'backgroundColor')).match(function(val){ return val == "rgba(0, 0, 0, 0)" || val == "transparent" });//3 expect(el.css( 'backgroundPosition')).eq("0% 0%");//4 expect(el.css( 'backgroundPositionX')).eq('0%');//5 expect(el.css( 'fontSize')).eq('16px');//6 expect(el.css( 'border-right-width')).eq('5px');//7 var matchFn = function(val){ val = parseFloat(val) return val >= 2 && val <= 3 } expect(el.css( 'paddingLeft')).match(matchFn);//8 expect(el.css( 'padding-left')).match(matchFn);//9 expect(el.css( 'padding-right')).eq('0px');//10 expect(el.css( 'opacity')).eq('1');//11 // 不加入 dom 节点,ie9,firefox 返回 auto by computedStyle // ie7,8 返回负数,offsetHeight 返回0 //alert(elem.currentStyle.height);== auto expect(parseInt(el.css( 'height'))).match(function(val){ val = parseFloat(val) return val >= 18 && val <= 20 });//12 el.css( 'float', 'right'); expect(el.css( 'float')).eq('right');//13 el.css( 'font-size', '100%'); expect(el.css( 'font-size')).eq("16px");//14 el.css( 'opacity', '0.2'); expect(el.css( 'opacity')).match(function(val){ val = parseFloat(val); return val >= 0.2 && val < 0.21; }); el.css( 'border', '2px dashed red'); expect(el.css( 'borderLeftWidth')).eq('2px');//16 el.remove(); } }); });
使用方法与jQuery保持一致,读写器合而为一,set all get first。
dom.require("css",function(){ var a = dom('<div >'); dom.log( a.css("opacity"))//IE9,FF为0.7;IE6-8为0.5 });