From ae2182c1e5c395d2ba48b5084f358e45b78ceaf3 Mon Sep 17 00:00:00 2001
From: 23rd <23rd@vivaldi.net>
Date: Wed, 30 Aug 2023 23:33:54 +0300
Subject: [PATCH] Removed document's requirement when it's unavailable in
 userpic builder.

---
 .../info_userpic_emoji_builder_preview.cpp       | 16 ++++++++++------
 .../userpic/info_userpic_emoji_builder_preview.h |  2 +-
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/Telegram/SourceFiles/info/userpic/info_userpic_emoji_builder_preview.cpp b/Telegram/SourceFiles/info/userpic/info_userpic_emoji_builder_preview.cpp
index c7997381c..54e3767f7 100644
--- a/Telegram/SourceFiles/info/userpic/info_userpic_emoji_builder_preview.cpp
+++ b/Telegram/SourceFiles/info/userpic/info_userpic_emoji_builder_preview.cpp
@@ -47,9 +47,8 @@ PreviewPainter::PreviewPainter(int size)
 	}
 }
 
-not_null<DocumentData*> PreviewPainter::document() const {
-	Expects(_media != nullptr);
-	return _media->owner();
+DocumentData *PreviewPainter::document() const {
+	return _media ? _media->owner() : nullptr;
 }
 
 void PreviewPainter::setPlayOnce(bool value) {
@@ -183,7 +182,7 @@ void EmojiUserpic::result(int size, Fn<void(UserpicBuilder::Result)> done) {
 	const auto painter = lifetime().make_state<PreviewPainter>(size);
 	// Reset to the first frame.
 	const auto document = _painter.document();
-	painter->setDocument(document, [=] {
+	const auto callback = [=] {
 		auto background = GenerateGradient(Size(size), _colors, false);
 
 		{
@@ -194,12 +193,17 @@ void EmojiUserpic::result(int size, Fn<void(UserpicBuilder::Result)> done) {
 				}
 			}
 		}
-		if (*_playOnce) {
+		if (*_playOnce && document) {
 			done({ std::move(background), document->id, _colors });
 		} else {
 			done({ std::move(background) });
 		}
-	});
+	};
+	if (document) {
+		painter->setDocument(document, callback);
+	} else {
+		callback();
+	}
 }
 
 void EmojiUserpic::setGradientColors(std::vector<QColor> colors) {
diff --git a/Telegram/SourceFiles/info/userpic/info_userpic_emoji_builder_preview.h b/Telegram/SourceFiles/info/userpic/info_userpic_emoji_builder_preview.h
index 13561ac79..9961c54a7 100644
--- a/Telegram/SourceFiles/info/userpic/info_userpic_emoji_builder_preview.h
+++ b/Telegram/SourceFiles/info/userpic/info_userpic_emoji_builder_preview.h
@@ -29,7 +29,7 @@ class PreviewPainter final {
 public:
 	PreviewPainter(int size);
 
-	[[nodiscard]] not_null<DocumentData*> document() const;
+	[[nodiscard]] DocumentData *document() const;
 
 	void setPlayOnce(bool value);
 	void setDocument(