Implement riot-web side of dragging GroupTile avatars to TagPanel

for adding groups to the TagPanel.

src/components/structures/LeftPanel.js

@@ -19,7 +19,6 @@ limitations under the License.
 import React from 'react';
 import PropTypes from 'prop-types';
 import classNames from 'classnames';
-import { DragDropContext } from 'react-beautiful-dnd';
 import { MatrixClient } from 'matrix-js-sdk';
 import { KeyCode } from 'matrix-react-sdk/lib/Keyboard';
 import sdk from 'matrix-react-sdk';
@@ -27,8 +26,6 @@ import dis from 'matrix-react-sdk/lib/dispatcher';
 import VectorConferenceHandler from '../../VectorConferenceHandler';
 
 import SettingsStore from 'matrix-react-sdk/lib/settings/SettingsStore';
-import TagOrderActions from 'matrix-react-sdk/lib/actions/TagOrderActions';
-import RoomListActions from 'matrix-react-sdk/lib/actions/RoomListActions';
 
 
 var LeftPanel = React.createClass({
@@ -170,47 +167,6 @@ var LeftPanel = React.createClass({
         this.setState({ searchFilter: term });
     },
 
-    onDragEnd: function(result) {
-        // Dragged to an invalid destination, not onto a droppable
-        if (!result.destination) {
-            return;
-        }
-
-        const dest = result.destination.droppableId;
-
-        if (dest === 'tag-panel-droppable') {
-            // Dispatch synchronously so that the TagPanel receives an
-            // optimistic update from TagOrderStore before the previous
-            // state is shown.
-            dis.dispatch(TagOrderActions.moveTag(
-                this.context.matrixClient,
-                result.draggableId,
-                result.destination.index,
-            ), true);
-        } else {
-            this.onRoomTileEndDrag(result);
-        }
-    },
-
-    onRoomTileEndDrag: function(result) {
-        let newTag = result.destination.droppableId.split('_')[1];
-        let prevTag = result.source.droppableId.split('_')[1];
-        if (newTag === 'undefined') newTag = undefined;
-        if (prevTag === 'undefined') prevTag = undefined;
-
-        const roomId = result.draggableId.split('_')[1];
-
-        const oldIndex = result.source.index;
-        const newIndex = result.destination.index;
-
-        dis.dispatch(RoomListActions.tagRoom(
-            this.context.matrixClient,
-            this.context.matrixClient.getRoom(roomId),
-            prevTag, newTag,
-            oldIndex, newIndex,
-        ), true);
-    },
-
     collectRoomList: function(ref) {
         this._roomList = ref;
     },
@@ -250,7 +206,6 @@ var LeftPanel = React.createClass({
         );
 
         return (
-            <DragDropContext onDragEnd={this.onDragEnd}>
             <div className={containerClasses}>
                 { tagPanel }
                 <aside className={classes} onKeyDown={ this._onKeyDown } onFocus={ this._onFocus } onBlur={ this._onBlur }>
@@ -264,7 +219,6 @@ var LeftPanel = React.createClass({
                     <BottomLeftMenu collapsed={this.props.collapsed}/>
                 </aside>
             </div>
-            </DragDropContext>
         );
     }
 });

src/skins/vector/css/matrix-react-sdk/structures/_MyGroups.scss

@@ -115,6 +115,10 @@ limitations under the License.
     cursor: pointer;
 }
 
+.mx_GroupTile_avatar {
+    cursor: -webkit-grab;
+}
+
 .mx_GroupTile_profile {
     margin-left: 10px;
     display: flex;