[refs #765] add CodeMirror resizable ability

app/assets/stylesheets/design/custom.scss

@@ -1708,3 +1708,12 @@ table#myTable thead tr.search th form.button_to div input {
   margin-top: 2px;
 }
 
+.file-editor {
+  margin-bottom: 10px;
+  margin-top: 10px;
+  max-width: 860px;
+}
+
+.CodeMirror {
+  border: 1px solid #DDDDDD;
+}

app/views/projects/git/blobs/_editor.html.haml

@@ -5,7 +5,7 @@
 .both
 
 = form_tag edit_blob_path(@project, @treeish, @path), :name => 'blob-editor', :method => :put do
-  .file= text_area_tag :content, @blob.data, :id => 'code'
+  .file-editor= text_area_tag :content, @blob.data, :id => 'code'
 
   .both
   = t("layout.enter_commit_message")
@@ -23,4 +23,12 @@
       lineNumbers: true,
       mode: '#{@blob.raw_mime_type.content_type}'
     });
+    $(".CodeMirror").resizable({
+      stop: function() { editor.refresh(); },
+      resize: function() {
+        $(".CodeMirror-scroll").height($(this).height());
+        $(".CodeMirror-scroll").width($(this).width());
+        editor.refresh();
+      }
+    });
   });

vendor/assets/stylesheets/codemirror.css

@@ -5,7 +5,6 @@
 
 .CodeMirror-scroll {
   overflow: auto;
-  height: 300px;
   /* This is needed to prevent an IE[67] bug where the scrolled content
      is visible outside of the scrolling box. */
   position: relative;