fix up scroll behaviour when loading widgets

src/components/structures/MessagePanel.js

@@ -302,6 +302,7 @@ module.exports = React.createClass({
                         ref={this._collectEventNode.bind(this, eventId)}
                         data-scroll-token={scrollToken}>
                     <EventTile mxEvent={mxEv} continuation={continuation}
+                        onWidgetLoad={this._onWidgetLoad}
                         last={last} isSelectedEvent={highlight} />
                 </li>
         );
@@ -368,6 +369,15 @@ module.exports = React.createClass({
         this.eventNodes[eventId] = node;
     },
 
+    // once dynamic content in the events load, make the scrollPanel check the
+    // scroll offsets.
+    _onWidgetLoad: function() {
+        var scrollPanel = this.refs.scrollPanel;
+        if (scrollPanel) {
+            scrollPanel.checkScroll();
+        }
+    },
+
     onResize: function() {
         dis.dispatch({ action: 'timeline_resize' }, true);
     },

src/components/structures/RoomView.js

@@ -798,9 +798,9 @@ module.exports = React.createClass({
             }
         }
 
-        // once images in the search results load, make the scrollPanel check
+        // once dynamic content in the search results load, make the scrollPanel check
         // the scroll offsets.
-        var onImageLoad = () => {
+        var onWidgetLoad = () => {
             var scrollPanel = this.refs.searchResultsPanel;
             if (scrollPanel) {
                 scrollPanel.checkScroll();
@@ -844,7 +844,7 @@ module.exports = React.createClass({
                      searchResult={result}
                      searchHighlights={this.state.searchHighlights}
                      resultLink={resultLink}
-                     onImageLoad={onImageLoad}/>);
+                     onWidgetLoad={onWidgetLoad}/>);
         }
         return ret;
     },