Re-enable `block:drag:*` events

src/block_manager/view/BlockView.js

@@ -6,6 +6,7 @@ module.exports = Backbone.View.extend({
   events: {
     mousedown: 'startDrag',
     dragstart: 'handleDragStart',
+    drag: 'handleDrag',
     dragend: 'handleDragEnd'
   },
 
@@ -34,7 +35,8 @@ module.exports = Backbone.View.extend({
   },
 
   handleDragStart(ev) {
-    const content = this.model.get('content');
+    const { em, model } = this;
+    const content = model.get('content');
     const isObj = isObject(content);
     const type = isObj ? 'text/json' : 'text';
     const data = isObj ? JSON.stringify(content) : content;
@@ -43,7 +45,12 @@ module.exports = Backbone.View.extend({
     // but will use dragContent as I need it for the Sorter context
     // IE11 supports only 'text' data type
     ev.dataTransfer.setData('text', data);
-    this.em.set('dragContent', content);
+    em.set('dragContent', content);
+    em.trigger('block:drag:start', model, ev);
+  },
+
+  handleDrag(ev) {
+    this.em.trigger('block:drag', this.model, ev);
   },
 
   handleDragEnd() {
@@ -72,6 +79,8 @@ module.exports = Backbone.View.extend({
       dragResult: null,
       dragContent: null
     });
+
+    em.trigger('block:drag:stop', result, model);
   },
 
   /**

src/editor/index.js

@@ -22,8 +22,9 @@
  * ## Blocks
  * * `block:add` - New block added
  * * `block:remove` - Block removed
- * * `block:drag:start` - Started dragging new block, Event object is passed as an argument
- * * `block:drag:stop` - Block dropped inside canvas, the new model is passed as an argument to the callback
+ * * `block:drag:start` - Started dragging block, model of the block is passed as an argument
+ * * `block:drag` - Dragging block, the block's model and the drag event are passed as arguments
+ * * `block:drag:stop` - Dragging of the block is stopped. As agruments for the callback you get, the dropped component model (if dropped successfully) and the model of the block
  * ## Assets
  * * `asset:add` - New asset added
  * * `asset:remove` - Asset removed