Merge pull request #3653 from KDSBrowne/Chat-Scroll

HTML5 - Chat scroll fix
2017-02-10 13:51:53 -05:00 · 2017-02-10 13:51:53 -05:00 · ac140be59a
commit ac140be59a
parent f2a2fcd8d7 7df8502349
1 changed files with 6 additions and 3 deletions
--- a/bigbluebutton-html5/imports/ui/components/chat/message-list/component.jsx
+++ b/bigbluebutton-html5/imports/ui/components/chat/message-list/component.jsx
@ -78,10 +78,13 @@ class MessageList extends Component {
    }

    const { scrollArea } = this.refs;
-    this.shouldScrollBottom = scrollArea.scrollTop +
-                              scrollArea.offsetHeight ===
-                              scrollArea.scrollHeight;

+    let position = scrollArea.scrollTop + scrollArea.offsetHeight;
+
+    //Compare with <1 to account for the chance scrollArea.scrollTop is a float
+    //value in some browsers.
+    this.shouldScrollBottom = position === scrollArea.scrollHeight ||
+                              (scrollArea.scrollHeight - position < 1);
  }

  componentDidUpdate(prevProps) {