From 2658cd09b59bdafb59f110a4ee31633cacb32a0c Mon Sep 17 00:00:00 2001
From: Luke Barnard <lukeb@openmarket.com>
Date: Tue, 20 Dec 2016 12:33:07 +0000
Subject: [PATCH] Fix scroll jumping when a video is decrypted

Call the `onWidgetLoad` prop on MVideoBody to notify the scroll panel to keep it's position when the size of the video widget updates.
---
 src/components/views/messages/MVideoBody.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/components/views/messages/MVideoBody.js b/src/components/views/messages/MVideoBody.js
index 7279f5c325..18552a973d 100644
--- a/src/components/views/messages/MVideoBody.js
+++ b/src/components/views/messages/MVideoBody.js
@@ -27,6 +27,14 @@ import q from 'q';
 module.exports = React.createClass({
     displayName: 'MVideoBody',
 
+    propTypes: {
+        /* the MatrixEvent to show */
+        mxEvent: React.PropTypes.object.isRequired,
+
+        /* called when the video has loaded */
+        onWidgetLoad: React.PropTypes.func.isRequired,
+    },
+
     getInitialState: function() {
         return {
             decryptedUrl: null,
@@ -100,6 +108,7 @@ module.exports = React.createClass({
                         decryptedThumbnailUrl: thumbnailUrl,
                         decryptedBlob: decryptedBlob,
                     });
+                    this.props.onWidgetLoad();
                 });
             }).catch((err) => {
                 console.warn("Unable to decrypt attachment: ", err)