From 57dd323b783aeb7d5a45c9da34997dff69bfd613 Mon Sep 17 00:00:00 2001
From: Alexander Zinchuk <alx.zinchuk@gmail.com>
Date: Fri, 11 Feb 2022 15:12:59 +0100
Subject: [PATCH] Message: Fix webpage video-sticker preview in Safari

---
 src/api/gramjs/apiBuilders/messages.ts | 6 ++++++
 src/config.ts                          | 1 +
 2 files changed, 7 insertions(+)

diff --git a/src/api/gramjs/apiBuilders/messages.ts b/src/api/gramjs/apiBuilders/messages.ts
index 1bb7faea9..231f9dd85 100644
--- a/src/api/gramjs/apiBuilders/messages.ts
+++ b/src/api/gramjs/apiBuilders/messages.ts
@@ -38,6 +38,7 @@ import {
   SUPPORTED_IMAGE_CONTENT_TYPES,
   SUPPORTED_VIDEO_CONTENT_TYPES,
   VIDEO_MOV_TYPE,
+  VIDEO_WEBM_TYPE,
 } from '../../../config';
 import { pick } from '../../../util/iteratees';
 import { buildStickerFromDocument } from './symbols';
@@ -369,6 +370,11 @@ export function buildVideoFromDocument(document: GramJs.Document): ApiVideo | un
     id, mimeType, thumbs, size, attributes,
   } = document;
 
+  // eslint-disable-next-line no-restricted-globals
+  if (mimeType === VIDEO_WEBM_TYPE && !(self as any).isWebmSupported) {
+    return undefined;
+  }
+
   // eslint-disable-next-line no-restricted-globals
   if (mimeType === VIDEO_MOV_TYPE && !(self as any).isMovSupported) {
     return undefined;
diff --git a/src/config.ts b/src/config.ts
index dd33a1a42..0908ecb0a 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -134,6 +134,7 @@ export const MENU_TRANSITION_DURATION = 200;
 export const SLIDE_TRANSITION_DURATION = 450;
 
 export const VIDEO_MOV_TYPE = 'video/quicktime';
+export const VIDEO_WEBM_TYPE = 'video/webm';
 
 export const SUPPORTED_IMAGE_CONTENT_TYPES = new Set([
   'image/png', 'image/gif', 'image/jpeg',