Fix an error on dragging into status_content component (#3308)

2017-05-25 23:27:44 +09:00 · 2017-05-25 23:27:44 +09:00 · 3e3ec9b2c8
parent a8736aab7a
commit 3e3ec9b2c8
1 changed files with 4 additions and 0 deletions
--- a/app/javascript/mastodon/components/status_content.js
+++ b/app/javascript/mastodon/components/status_content.js
@ -65,6 +65,10 @@ class StatusContent extends React.PureComponent {
  }

  handleMouseUp = (e) => {
+    if (!this.startXY) {
+      return;
+    }
+
    const [ startX, startY ] = this.startXY;
    const [ deltaX, deltaY ] = [Math.abs(e.clientX - startX), Math.abs(e.clientY - startY)];