1 files changed, 163 insertions, 0 deletions
diff --git a/src/static/js/pad_editor.js b/src/static/js/pad_editor.js
new file mode 100644
index 00000000..12f83aeb
--- /dev/null
+++ b/src/static/js/pad_editor.js
@@ -0,0 +1,163 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
+/**
+ * Copyright 2009 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS-IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+var padcookie = require('./pad_cookie').padcookie;
+var padutils = require('./pad_utils').padutils;
+
+var padeditor = (function()
+{
+  var Ace2Editor = undefined;
+  var pad = undefined;
+  var settings = undefined;
+  var self = {
+    ace: null,
+    // this is accessed directly from other files
+    viewZoom: 100,
+    init: function(readyFunc, initialViewOptions, _pad)
+    {
+      Ace2Editor = require('./ace').Ace2Editor;
+      pad = _pad;
+      settings = pad.settings;
+
+      function aceReady()
+      {
+        $("#editorloadingbox").hide();
+        if (readyFunc)
+        {
+          readyFunc();
+        }
+      }
+
+      self.ace = new Ace2Editor();
+      self.ace.init("editorcontainer", "", aceReady);
+      self.ace.setProperty("wraps", true);
+      if (pad.getIsDebugEnabled())
+      {
+        self.ace.setProperty("dmesg", pad.dmesg);
+      }
+      self.initViewOptions();
+      self.setViewOptions(initialViewOptions);
+
+      // view bar
+      self.initViewZoom();
+      $("#viewbarcontents").show();
+    },
+    initViewOptions: function()
+    {
+      padutils.bindCheckboxChange($("#options-linenoscheck"), function()
+      {
+        pad.changeViewOption('showLineNumbers', padutils.getCheckbox($("#options-linenoscheck")));
+      });
+      padutils.bindCheckboxChange($("#options-colorscheck"), function()
+      {
+        padcookie.setPref('showAuthorshipColors', padutils.getCheckbox("#options-colorscheck"));
+        pad.changeViewOption('showAuthorColors', padutils.getCheckbox("#options-colorscheck"));
+      });
+      $("#viewfontmenu").change(function()
+      {
+        pad.changeViewOption('useMonospaceFont', $("#viewfontmenu").val() == 'monospace');
+      });
+    },
+    setViewOptions: function(newOptions)
+    {
+      function getOption(key, defaultValue)
+      {
+        var value = String(newOptions[key]);
+        if (value == "true") return true;
+        if (value == "false") return false;
+        return defaultValue;
+      }
+
+      self.ace.setProperty("showsauthorcolors", !settings.noColors);
+
+      self.ace.setProperty("rtlIsTrue", settings.rtlIsTrue);
+
+      var v;
+
+      v = getOption('showLineNumbers', true);
+      self.ace.setProperty("showslinenumbers", v);
+      padutils.setCheckbox($("#options-linenoscheck"), v);
+
+      v = getOption('showAuthorColors', true);
+      self.ace.setProperty("showsauthorcolors", v);
+      padutils.setCheckbox($("#options-colorscheck"), v);
+
+      v = getOption('useMonospaceFont', false);
+      self.ace.setProperty("textface", (v ? "monospace" : "Arial, sans-serif"));
+      $("#viewfontmenu").val(v ? "monospace" : "normal");
+    },
+    initViewZoom: function()
+    {
+      var viewZoom = Number(padcookie.getPref('viewZoom'));
+      if ((!viewZoom) || isNaN(viewZoom))
+      {
+        viewZoom = 100;
+      }
+      self.setViewZoom(viewZoom);
+      $("#viewzoommenu").change(function(evt)
+      {
+        // strip initial 'z' from val
+        self.setViewZoom(Number($("#viewzoommenu").val().substring(1)));
+      });
+    },
+    setViewZoom: function(percent)
+    {
+      if (!(percent >= 50 && percent <= 1000))
+      {
+        // percent is out of sane range or NaN (which fails comparisons)
+        return;
+      }
+
+      self.viewZoom = percent;
+      $("#viewzoommenu").val('z' + percent);
+
+      var baseSize = 13;
+      self.ace.setProperty('textsize', Math.round(baseSize * self.viewZoom / 100));
+
+      padcookie.setPref('viewZoom', percent);
+    },
+    dispose: function()
+    {
+      if (self.ace)
+      {
+        self.ace.destroy();
+        self.ace = null;
+      }
+    },
+    disable: function()
+    {
+      if (self.ace)
+      {
+        self.ace.setProperty("grayedOut", true);
+        self.ace.setEditable(false);
+      }
+    },
+    restoreRevisionText: function(dataFromServer)
+    {
+      pad.addHistoricalAuthors(dataFromServer.historicalAuthorData);
+      self.ace.importAText(dataFromServer.atext, dataFromServer.apool, true);
+    }
+  };
+  return self;
+}());
+
+exports.padeditor = padeditor;