Latest platform build

release/lurch-web-platform.litcoffee

@@ -3310,24 +3310,40 @@ the latter if needed.
 
 # Installing the plugin
 
-The plugin, when initialized on an editor, places an instance of the
-`Groups` class inside the editor, and points the class at that editor.
+There is a very small stylesheet we will install with this plugin.
 
     styleSheet = '
         img.grouper {
             margin-bottom : -0.35em;
             cursor : default;
         }
-
         img.grouper.hide:not(.decorate) {
             width : 0px;
             height : 22px;
         }
     '
-    styleSheet = 'data:text/css;base64,' + btoa styleSheet
+    styleSheetURL = 'data:text/css;base64,' + btoa styleSheet
+
+The plugin, when initialized on an editor, places an instance of the
+`Groups` class inside the editor, and points the class at that editor.
+
     tinymce.PluginManager.add 'groups', ( editor, url ) ->
         editor.Groups = new Groups editor
-        editor.on 'init', ( event ) -> editor.dom.loadCSS styleSheet
+
+We do not rely on TinyMCE's built-in stylesheet installing function
+(`loadCSS`), because it cannot handle data URIs.  We wish to use a data URI
+here because it lets us embed the stylesheet in the code, making it easier
+to distribute this file on a CDN.  Instead, I mimic the code from [the
+TinyMCE
+source](https://github.com/tinymce/tinymce/blob/master/src/core/src/main/js/dom/DOMUtils.js),
+but without the feature that splits by commas (thus breaking up data URIs).
+
+        editor.on 'init', ( event ) ->
+            head = editor.getDoc().getElementsByTagName( 'head' )[0]
+            link = editor.getDoc().createElement 'link'
+            link.setAttribute 'rel', 'stylesheet'
+            link.setAttribute 'href', styleSheetURL
+            head.appendChild link
         for type in editor.settings.groupTypes
             editor.Groups.addGroupType type.name, type
         editor.addMenuItem 'hideshowgroups',
@@ -4360,11 +4376,9 @@ related getters for listing all back-ends, or getting the current one.
         availableBackends: => Object.keys @backends
         getBackend: => @backend
         setBackend: ( which ) =>
-            console.log 'setting back end', which
             if which in @availableBackends()
                 @backend = which
                 window.setFileSystem @backends[@backend]
-                console.log @backends[@backend]
 
 The following function is useful for storing file objects provided by
 [the cloud storage module](https://github.com/lurchmath/cloud-storage), and
@@ -5063,10 +5077,9 @@ Not all of the following plugins are working yet, but most are.  A plugin
 that begins with a hyphen is a local plugin written as part of this project.
 
             plugins :
-                'advlist table charmap colorpicker image link
-                paste print searchreplace textcolor
-                -storage -overlay -groups -equationeditor -dependencies
-                -dialogs -downloadupload ' \
+                'advlist table charmap colorpicker image link paste print
+                searchreplace textcolor -storage -overlay -groups
+                -dependencies -dialogs -downloadupload ' \
                 + ( "-#{p}" for p in window.pluginsToLoad ).join( ' ' ) \
                 + ( if window.fullScreenEditor then ' fullscreen' else '' )
 
@@ -5263,7 +5276,8 @@ by invoking the "mceFullScreen" command.
 
 The third-party plugin for math equations requires the following stylesheet.
 
-                    editor.dom.loadCSS './eqed/mathquill.css'
+                    if 'equationeditor' in window.pluginsToLoad
+                        editor.dom.loadCSS './eqed/mathquill.css'
 
 Add an icon to the left of the File menu, if one has been specified.