代码初始化

public/assets/libs/require-css/css.js

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+/*
+ * Require-CSS RequireJS css! loader plugin
+ * 0.1.10
+ * Guy Bedford 2014
+ * MIT
+ */
+
+/*
+ *
+ * Usage:
+ *  require(['css!./mycssFile']);
+ *
+ * Tested and working in (up to latest versions as of March 2013):
+ * Android
+ * iOS 6
+ * IE 6 - 10
+ * Chrome 3 - 26
+ * Firefox 3.5 - 19
+ * Opera 10 - 12
+ * 
+ * browserling.com used for virtual testing environment
+ *
+ * Credit to B Cavalier & J Hann for the IE 6 - 9 method,
+ * refined with help from Martin Cermak
+ * 
+ * Sources that helped along the way:
+ * - https://developer.mozilla.org/en-US/docs/Browser_detection_using_the_user_agent
+ * - http://www.phpied.com/when-is-a-stylesheet-really-loaded/
+ * - https://github.com/cujojs/curl/blob/master/src/curl/plugin/css.js
+ *
+ */
+
+define(function() {
+//>>excludeStart('excludeRequireCss', pragmas.excludeRequireCss)
+  if (typeof window == 'undefined')
+    return { load: function(n, r, load){ load() } };
+
+  var head = document.getElementsByTagName('head')[0];
+
+  var engine = window.navigator.userAgent.match(/Trident\/([^ ;]*)|AppleWebKit\/([^ ;]*)|Opera\/([^ ;]*)|rv\:([^ ;]*)(.*?)Gecko\/([^ ;]*)|MSIE\s([^ ;]*)|AndroidWebKit\/([^ ;]*)/) || 0;
+
+  // use <style> @import load method (IE < 9, Firefox < 18)
+  var useImportLoad = false;
+  
+  // set to false for explicit <link> load checking when onload doesn't work perfectly (webkit)
+  var useOnload = true;
+
+  // trident / msie
+  if (engine[1] || engine[7])
+    useImportLoad = parseInt(engine[1]) < 6 || parseInt(engine[7]) <= 9;
+  // webkit
+  else if (engine[2] || engine[8] || 'WebkitAppearance' in document.documentElement.style)
+    useOnload = false;
+  // gecko
+  else if (engine[4])
+    useImportLoad = parseInt(engine[4]) < 18;
+
+//>>excludeEnd('excludeRequireCss')
+  //main api object
+  var cssAPI = {};
+
+//>>excludeStart('excludeRequireCss', pragmas.excludeRequireCss)
+  cssAPI.pluginBuilder = './css-builder';
+
+  // <style> @import load method
+  var curStyle, curSheet;
+  var createStyle = function () {
+    curStyle = document.createElement('style');
+    head.appendChild(curStyle);
+    curSheet = curStyle.styleSheet || curStyle.sheet;
+  }
+  var ieCnt = 0;
+  var ieLoads = [];
+  var ieCurCallback;
+  
+  var createIeLoad = function(url) {
+    curSheet.addImport(url);
+    curStyle.onload = function(){ processIeLoad() };
+    
+    ieCnt++;
+    if (ieCnt == 31) {
+      createStyle();
+      ieCnt = 0;
+    }
+  }
+  var processIeLoad = function() {
+    ieCurCallback();
+ 
+    var nextLoad = ieLoads.shift();
+ 
+    if (!nextLoad) {
+      ieCurCallback = null;
+      return;
+    }
+ 
+    ieCurCallback = nextLoad[1];
+    createIeLoad(nextLoad[0]);
+  }
+  var importLoad = function(url, callback) {
+    if (!curSheet || !curSheet.addImport)
+      createStyle();
+
+    if (curSheet && curSheet.addImport) {
+      // old IE
+      if (ieCurCallback) {
+        ieLoads.push([url, callback]);
+      }
+      else {
+        createIeLoad(url);
+        ieCurCallback = callback;
+      }
+    }
+    else {
+      // old Firefox
+      curStyle.textContent = '@import "' + url + '";';
+
+      var loadInterval = setInterval(function() {
+        try {
+          curStyle.sheet.cssRules;
+          clearInterval(loadInterval);
+          callback();
+        } catch(e) {}
+      }, 10);
+    }
+  }
+
+  // <link> load method
+  var linkLoad = function(url, callback) {
+    var link = document.createElement('link');
+    link.type = 'text/css';
+    link.rel = 'stylesheet';
+    if (useOnload)
+      link.onload = function() {
+        link.onload = function() {};
+        // for style dimensions queries, a short delay can still be necessary
+        setTimeout(callback, 7);
+      }
+    else
+      var loadInterval = setInterval(function() {
+        for (var i = 0; i < document.styleSheets.length; i++) {
+          var sheet = document.styleSheets[i];
+          if (sheet.href == link.href) {
+            clearInterval(loadInterval);
+            return callback();
+          }
+        }
+      }, 10);
+    link.href = url;
+    head.appendChild(link);
+  }
+
+//>>excludeEnd('excludeRequireCss')
+  cssAPI.normalize = function(name, normalize) {
+    if (name.substr(name.length - 4, 4) == '.css')
+      name = name.substr(0, name.length - 4);
+
+    return normalize(name);
+  }
+
+//>>excludeStart('excludeRequireCss', pragmas.excludeRequireCss)
+  cssAPI.load = function(cssId, req, load, config) {
+
+    (useImportLoad ? importLoad : linkLoad)(req.toUrl(cssId + '.css'), load);
+
+  }
+
+//>>excludeEnd('excludeRequireCss')
+  return cssAPI;
+});