From 9ede14a546731e692640a408c2b5bdb07d2c2c59 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matthias=20Bartelme=C3=9F?= <mba@fourplusone.de>
Date: Sun, 19 Feb 2012 15:02:54 +0100
Subject: [PATCH] drop embedding of JS/CSS files in ace.js. May result in a
 little performance drop but makes code much smaller

---
 node/utils/Minify.js |  74 +-------------------
 static/js/ace.js     | 158 +++++++++++++++----------------------------
 2 files changed, 56 insertions(+), 176 deletions(-)

diff --git a/node/utils/Minify.js b/node/utils/Minify.js
index 859ee07a..baeaee68 100644
--- a/node/utils/Minify.js
+++ b/node/utils/Minify.js
@@ -213,72 +213,6 @@ function _handle(req, res, jsFilename, jsFiles) {
   }
 }
 
-// find all includes in ace.js and embed them.
-function getAceFile(callback) {
-  fs.readFile(JS_DIR + 'ace.js', "utf8", function(err, data) {
-    if(ERR(err, callback)) return;
-
-    // Find all includes in ace.js and embed them
-    var founds = data.match(/\$\$INCLUDE_[a-zA-Z_]+\([a-zA-Z0-9.\/_"-]+\)/gi);
-    if (!settings.minify) {
-      founds = [];
-    }
-    founds.push('$$INCLUDE_JS("../static/js/require-kernel.js")');
-
-    data += ';\n';
-    data += 'Ace2Editor.EMBEDED = Ace2Editor.EMBEDED || {};\n';
-
-    //go trough all includes
-    async.forEach(founds, function (item, callback) {
-      var filename = item.match(/"([^"]*)"/)[1];
-      var type = item.match(/INCLUDE_([A-Z]+)/)[1];
-      var shortFilename = (filename.match(/^..\/static\/js\/(.*)$/, '')||[])[1];
-
-      //read the included files
-      if (shortFilename) {
-        if (shortFilename == 'require-kernel.js') {
-          // the kernel isn’t actually on the file system.
-          handleEmbed(null, requireDefinition());
-        } else {
-          var contents = '';
-          tarCode(tar[shortFilename] || shortFilename
-          , function (content) {
-              contents += content;
-            }
-          , function () {
-              handleEmbed(null, contents);
-            }
-          );
-        }
-      } else {
-        fs.readFile(ROOT_DIR + filename, "utf8", handleEmbed);
-      }
-
-      function handleEmbed(error, data_) {
-        if (error) {
-          return; // Don't bother to include it.
-        }
-        if (settings.minify) {
-          if (type == "JS") {
-            try {
-              data_ = compressJS([data_]);
-            } catch (e) {
-              // Ignore, include uncompresseed, which will break in browser.
-            }
-          } else {
-            data_ = compressCSS([data_]);
-          }
-        }
-        data += 'Ace2Editor.EMBEDED[' + JSON.stringify(filename) + '] = '
-            + JSON.stringify(data_) + ';\n';
-        callback();
-      }
-    }, function(error) {
-      callback(error, data);
-    });
-  });
-}
-
 exports.requireDefinition = requireDefinition;
 function requireDefinition() {
   return 'var require = ' + RequireKernel.kernelSource + ';\n';
@@ -288,12 +222,8 @@ function tarCode(jsFiles, write, callback) {
   write('require.define({');
   var initialEntry = true;
   async.forEach(jsFiles, function (filename, callback){
-    if (filename == 'ace.js') {
-      getAceFile(handleFile);
-    } else {
-      fs.readFile(JS_DIR + filename, "utf8", handleFile);
-    }
-
+    fs.readFile(JS_DIR + filename, "utf8", handleFile);
+    
     function handleFile(err, data) {
       if(ERR(err, callback)) return;
       var srcPath = JSON.stringify('/' + filename);
diff --git a/static/js/ace.js b/static/js/ace.js
index 6c7bb84e..63b1e61f 100644
--- a/static/js/ace.js
+++ b/static/js/ace.js
@@ -133,74 +133,6 @@ function Ace2Editor()
     return info.ace_getUnhandledErrors();
   };
 
-
-
-  function sortFilesByEmbeded(files) {
-    var embededFiles = [];
-    var remoteFiles = [];
-
-    if (Ace2Editor.EMBEDED) {
-      for (var i = 0, ii = files.length; i < ii; i++) {
-        var file = files[i];
-        if (Object.prototype.hasOwnProperty.call(Ace2Editor.EMBEDED, file)) {
-          embededFiles.push(file);
-        } else {
-          remoteFiles.push(file);
-        }
-      }
-    } else {
-      remoteFiles = files;
-    }
-
-    return {embeded: embededFiles, remote: remoteFiles};
-  }
-  function pushRequireScriptTo(buffer) {
-    var KERNEL_SOURCE = '../static/js/require-kernel.js';
-    var KERNEL_BOOT = 'require.setRootURI("../minified/");\nrequire.setGlobalKeyPath("require");'
-    if (Ace2Editor.EMBEDED && Ace2Editor.EMBEDED[KERNEL_SOURCE]) {
-      buffer.push('<script type="text/javascript">');
-      buffer.push(Ace2Editor.EMBEDED[KERNEL_SOURCE]);
-      buffer.push(KERNEL_BOOT);
-      buffer.push('<\/script>');
-    }
-  }
-  function pushScriptsTo(buffer) {
-    /* Folling is for packaging regular expression. */
-    /* $$INCLUDE_JS("../static/js/ace2_inner.js"); */
-    var ACE_SOURCE = '../static/js/ace2_inner.js';
-    if (Ace2Editor.EMBEDED && Ace2Editor.EMBEDED[ACE_SOURCE]) {
-      buffer.push('<script type="text/javascript">');
-      buffer.push(Ace2Editor.EMBEDED[ACE_SOURCE]);
-      buffer.push('require("/ace2_inner");');
-      buffer.push('<\/script>');
-    } else {
-      file = ACE_SOURCE;
-      file = file.replace(/^\.\.\/static\/js\//, '../minified/');
-      buffer.push('<script type="application/javascript" src="' + file + '"><\/script>');
-      buffer.push('<script type="text/javascript">');
-      buffer.push('require("/ace2_inner");');
-      buffer.push('<\/script>');
-    }
-  }
-  function pushStyleTagsFor(buffer, files) {
-    var sorted = sortFilesByEmbeded(files);
-    var embededFiles = sorted.embeded;
-    var remoteFiles = sorted.remote;
-
-    if (embededFiles.length > 0) {
-      buffer.push('<style type="text/css">');
-      for (var i = 0, ii = embededFiles.length; i < ii; i++) {
-        var file = embededFiles[i];
-        buffer.push(Ace2Editor.EMBEDED[file].replace(/<\//g, '<\\/'));
-      }
-      buffer.push('<\/style>');
-    }
-    for (var i = 0, ii = remoteFiles.length; i < ii; i++) {
-      var file = remoteFiles[i];
-      buffer.push('<link rel="stylesheet" type="text/css" href="' + file + '"\/>');
-    }
-  }
-
   editor.destroy = pendingInit(function()
   {
     info.ace_dispose();
@@ -208,7 +140,9 @@ function Ace2Editor()
     delete ace2.registry[info.id];
     info = null; // prevent IE 6 closure memory leaks
   });
+  
 
+  
   editor.init = function(containerId, initialCode, doneFunc)
   {
 
@@ -220,7 +154,8 @@ function Ace2Editor()
       doActionsPendingInit();
       doneFunc();
     };
-
+    
+    // This function builds the DOM structure of the editor which consists of two nested iFrames
     (function()
     {
       var doctype = "<!doctype html>";
@@ -240,50 +175,64 @@ function Ace2Editor()
       for (var i = 0, ii = iframeHTML.length; i < ii; i++) {
         iframeHTML[i] = JSON.parse(iframeHTML[i]);
       }
+      
+      
+      // Build HTML of editable iFrame
+      
+      // Add Stylesheets to iFrame
+      iframeHTML.push('<link rel="stylesheet" type="text/css" href="../static/css/iframe_editor.css">');
+      iframeHTML.push('<link rel="stylesheet" type="text/css" href="../static/css/pad.css">');
+      iframeHTML.push('<link rel="stylesheet" type="text/css" href="../static/custom/pad.css">');
+      
+      // Include Require Kernel and ace2_innner.js in iFrame;
+      iframeHTML.push('<script type="text/javascript" src="../static/js/require-kernel.js"></script>');
+      iframeHTML.push('<script type="text/javascript">');
 
-      // calls to these functions ($$INCLUDE_...)  are replaced when this file is processed
-      // and compressed, putting the compressed code from the named file directly into the
-      // source here.
-      // these lines must conform to a specific format because they are passed by the build script:      
-      var includedCSS = [];
-      var $$INCLUDE_CSS = function(filename) {includedCSS.push(filename)};
-      $$INCLUDE_CSS("../static/css/iframe_editor.css");
-      $$INCLUDE_CSS("../static/css/pad.css");
-      $$INCLUDE_CSS("../static/custom/pad.css");
-      pushStyleTagsFor(iframeHTML, includedCSS);
-
-      var includedJS = [];
-      var $$INCLUDE_JS = function(filename) {includedJS.push(filename)};
-      pushRequireScriptTo(iframeHTML);
+      // Configure reqire
+      iframeHTML.push('require.setRootURI("../minified/");');
+      iframeHTML.push('require.setGlobalKeyPath("require");');
+      
       // Inject my plugins into my child.
-      iframeHTML.push('\
-<script type="text/javascript">\
-  require.define("/plugins", null);\n\
-  require.define("/plugins.js", function (require, exports, module) {\
-    module.exports = parent.parent.require("/plugins");\
-  });\
-</script>\
-');
-      pushScriptsTo(iframeHTML);
-
+      iframeHTML.push('require.define("/plugins", null);');
+      iframeHTML.push('require.define("/plugins.js", function (require, exports, module) {');
+      iframeHTML.push('module.exports = parent.parent.require("/plugins");');
+      iframeHTML.push('});');
+      iframeHTML.push('<\/script>');
+      
+      // Require ace2
+      iframeHTML.push('<script type="text/javascript" src="../minified/ace2_inner.js"></script>');
+      iframeHTML.push('<script type="text/javascript">');
+      iframeHTML.push('require("/ace2_inner");');
+      iframeHTML.push('<\/script>');
+      
       iframeHTML.push('<style type="text/css" title="dynamicsyntax"></style>');
       iframeHTML.push('</head><body id="innerdocbody" class="syntax" spellcheck="false">&nbsp;</body></html>');
 
+      editor.iframeHTML =  iframeHTML.join('\n');
+
       // Expose myself to global for my child frame.
       var thisFunctionsName = "ChildAccessibleAce2Editor";
       (function () {return this}())[thisFunctionsName] = Ace2Editor;
+      
+      var outerScript = 'editorId = "' + info.id + '"; editorInfo = parent.' + thisFunctionsName + '.registry[editorId]; ' +
+      'window.onload = function()' + 
+             '{ window.onload = null; setTimeout' + '(function() ' + 
+             '{ var iframe = document.createElement("IFRAME"); ' + 
+             'iframe.scrolling = "no"; var outerdocbody = document.getElementById("outerdocbody"); ' +
+             'iframe.frameBorder = 0; iframe.allowTransparency = true; ' + // for IE
+             'outerdocbody.insertBefore(iframe, outerdocbody.firstChild); ' +
+             'iframe.ace_outerWin = window; ' +
+             'var doc = iframe.contentWindow.document; doc.open();doc.write(editorInfo.editor.iframeHTML); doc.close();'+
+             'readyFunc = function() { editorInfo.onEditorReady(); readyFunc = null; editorInfo = null; };' +
+              '}, 0); }';
+      
+      
+      // Build HTML of editor iFrame;
+      var outerHTML = [doctype, '<html><head>'];
+      outerHTML.push('<link rel="stylesheet" type="text/css" href="../static/css/iframe_editor.css">');
+      outerHTML.push('<link rel="stylesheet" type="text/css" href="../static/css/pad.css">');
+      outerHTML.push('<link rel="stylesheet" type="text/css" href="../static/custom/pad.css"');
 
-      var outerScript = 'editorId = "' + info.id + '"; editorInfo = parent.' + thisFunctionsName + '.registry[editorId]; ' + 'window.onload = function() ' + '{ window.onload = null; setTimeout' + '(function() ' + '{ var iframe = document.createElement("IFRAME"); ' + 'iframe.scrolling = "no"; var outerdocbody = document.getElementById("outerdocbody"); ' + 'iframe.frameBorder = 0; iframe.allowTransparency = true; ' + // for IE
-      'outerdocbody.insertBefore(iframe, outerdocbody.firstChild); ' + 'iframe.ace_outerWin = window; ' + 'readyFunc = function() { editorInfo.onEditorReady(); readyFunc = null; editorInfo = null; }; ' + 'var doc = iframe.contentWindow.document; doc.open(); var text = (' + JSON.stringify(iframeHTML.join('\n')) + ');doc.write(text); doc.close(); ' + '}, 0); }';
-
-      var outerHTML = [doctype, '<html><head>']
-
-      var includedCSS = [];
-      var $$INCLUDE_CSS = function(filename) {includedCSS.push(filename)};
-      $$INCLUDE_CSS("../static/css/iframe_editor.css");
-      $$INCLUDE_CSS("../static/css/pad.css");
-      $$INCLUDE_CSS("../static/custom/pad.css");
-      pushStyleTagsFor(outerHTML, includedCSS);
 
       // bizarrely, in FF2, a file with no "external" dependencies won't finish loading properly
       // (throbs busy while typing)
@@ -295,6 +244,7 @@ function Ace2Editor()
       document.getElementById(containerId).appendChild(outerFrame);
 
       var editorDocument = outerFrame.contentWindow.document;
+      
 
       editorDocument.open();
       editorDocument.write(outerHTML.join(''));