1 files changed, 60 insertions, 0 deletions
diff --git a/etherpad/src/static/js/draggable.js b/etherpad/src/static/js/draggable.js
new file mode 100644
index 0000000..97a1a3d
--- /dev/null
+++ b/etherpad/src/static/js/draggable.js
@@ -0,0 +1,60 @@
+/**
+ * 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.
+ */
+
+
+function makeDraggable(jqueryNodes, eventHandler) {
+  jqueryNodes.each(function() {
+    var node = $(this);
+    var state = {};
+    var inDrag = false;
+    function dragStart(evt) {
+      if (inDrag) {
+        return;
+      }
+      inDrag = true;
+      if (eventHandler('dragstart', evt, state) !== false) {
+        $(document).bind('mousemove', dragUpdate);
+        $(document).bind('mouseup', dragEnd);
+      }
+      evt.preventDefault();
+      return false;
+    }
+    function dragUpdate(evt) {
+      if (! inDrag) {
+        return;
+      }
+      eventHandler('dragupdate', evt, state);
+      evt.preventDefault();
+      return false;
+    }
+    function dragEnd(evt) {
+      if (! inDrag) {
+        return;
+      }
+      inDrag = false;
+      try {
+        eventHandler('dragend', evt, state);
+      }
+      finally {
+        $(document).unbind('mousemove', dragUpdate);
+        $(document).unbind('mouseup', dragEnd);
+        evt.preventDefault();
+      }
+      return false;
+    }
+    node.bind('mousedown', dragStart);
+  });
+}
+\ No newline at end of file