From 27d84befa8651bd8e60aad1c4e1d6b3433407676 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Sun, 28 Jul 2019 15:39:06 +0200
Subject: [PATCH] Remove emoji from custom admin ranks.

---
 .../boxes/peers/edit_participant_box.cpp        | 15 +++++++++------
 .../SourceFiles/history/history_message.cpp     |  2 +-
 Telegram/SourceFiles/ui/text/text_entity.cpp    | 17 +++++++++++++++++
 Telegram/SourceFiles/ui/text/text_entity.h      |  1 +
 .../SourceFiles/ui/widgets/input_fields.cpp     | 14 ++++++++++++++
 Telegram/SourceFiles/ui/widgets/input_fields.h  |  1 +
 6 files changed, 43 insertions(+), 7 deletions(-)

diff --git a/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp b/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
index 3809c0d73..7184fb310 100644
--- a/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
+++ b/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
@@ -427,14 +427,17 @@ not_null<Ui::InputField*> EditAdminBox::addRankInput() {
 			this,
 			st::customBadgeField,
 			(isOwner ? tr::lng_owner_badge : tr::lng_admin_badge)(),
-			_oldRank),
+			TextUtilities::RemoveEmoji(_oldRank)),
 		st::rightsAboutMargin);
 	result->setMaxLength(kAdminRoleLimit);
-	result->setInstantReplaces(Ui::InstantReplaces::Default());
-	result->setInstantReplacesEnabled(Global::ReplaceEmojiValue());
-	Ui::Emoji::SuggestionsController::Init(
-		getDelegate()->outerContainer(),
-		result);
+	result->setInstantReplaces(Ui::InstantReplaces::TextOnly());
+	connect(result, &Ui::InputField::changed, [=] {
+		const auto text = result->getLastText();
+		const auto removed = TextUtilities::RemoveEmoji(text);
+		if (removed != text) {
+			result->setText(removed);
+		}
+	});
 
 	addControl(
 		object_ptr<Ui::FlatLabel>(
diff --git a/Telegram/SourceFiles/history/history_message.cpp b/Telegram/SourceFiles/history/history_message.cpp
index dcee0afc6..8be10b8cf 100644
--- a/Telegram/SourceFiles/history/history_message.cpp
+++ b/Telegram/SourceFiles/history/history_message.cpp
@@ -674,7 +674,7 @@ void HistoryMessage::refreshMessageBadge() {
 	} else {
 		_messageBadge.setText(
 			st::defaultTextStyle,
-			TextUtilities::SingleLine(text));
+			TextUtilities::RemoveEmoji(TextUtilities::SingleLine(text)));
 	}
 }
 
diff --git a/Telegram/SourceFiles/ui/text/text_entity.cpp b/Telegram/SourceFiles/ui/text/text_entity.cpp
index 2cb1b3c76..7100889b2 100644
--- a/Telegram/SourceFiles/ui/text/text_entity.cpp
+++ b/Telegram/SourceFiles/ui/text/text_entity.cpp
@@ -1302,6 +1302,23 @@ QString RemoveAccents(const QString &text) {
 	return (i < result.size()) ? result.mid(0, i) : result;
 }
 
+QString RemoveEmoji(const QString &text) {
+	auto result = QString();
+	result.reserve(text.size());
+
+	auto begin = text.data();
+	const auto end = begin + text.size();
+	while (begin != end) {
+		auto length = 0;
+		if (Ui::Emoji::Find(begin, end, &length)) {
+			begin += length;
+		} else {
+			result.append(*begin++);
+		}
+	}
+	return result;
+}
+
 QStringList PrepareSearchWords(const QString &query, const QRegularExpression *SplitterOverride) {
 	auto clean = RemoveAccents(query.trimmed().toLower());
 	auto result = QStringList();
diff --git a/Telegram/SourceFiles/ui/text/text_entity.h b/Telegram/SourceFiles/ui/text/text_entity.h
index d227204a4..56ebcb9c0 100644
--- a/Telegram/SourceFiles/ui/text/text_entity.h
+++ b/Telegram/SourceFiles/ui/text/text_entity.h
@@ -281,6 +281,7 @@ QString Clean(const QString &text);
 QString EscapeForRichParsing(const QString &text);
 QString SingleLine(const QString &text);
 QString RemoveAccents(const QString &text);
+QString RemoveEmoji(const QString &text);
 QStringList PrepareSearchWords(const QString &query, const QRegularExpression *SplitterOverride = nullptr);
 bool CutPart(TextWithEntities &sending, TextWithEntities &left, int limit);
 
diff --git a/Telegram/SourceFiles/ui/widgets/input_fields.cpp b/Telegram/SourceFiles/ui/widgets/input_fields.cpp
index 5fc342e3c..9b12b33f8 100644
--- a/Telegram/SourceFiles/ui/widgets/input_fields.cpp
+++ b/Telegram/SourceFiles/ui/widgets/input_fields.cpp
@@ -936,6 +936,20 @@ const InstantReplaces &InstantReplaces::Default() {
 	return result;
 }
 
+const InstantReplaces &InstantReplaces::TextOnly() {
+	static const auto result = [] {
+		auto result = InstantReplaces();
+		result.add("--", QString(1, QChar(8212)));
+		result.add("<<", QString(1, QChar(171)));
+		result.add(">>", QString(1, QChar(187)));
+		result.add(
+			":shrug:",
+			QChar(175) + QString("\\_(") + QChar(12484) + ")_/" + QChar(175));
+		return result;
+	}();
+	return result;
+}
+
 FlatInput::FlatInput(
 	QWidget *parent,
 	const style::FlatInput &st,
diff --git a/Telegram/SourceFiles/ui/widgets/input_fields.h b/Telegram/SourceFiles/ui/widgets/input_fields.h
index 850d7fd4e..9d33a2c5d 100644
--- a/Telegram/SourceFiles/ui/widgets/input_fields.h
+++ b/Telegram/SourceFiles/ui/widgets/input_fields.h
@@ -28,6 +28,7 @@ struct InstantReplaces {
 	void add(const QString &what, const QString &with);
 
 	static const InstantReplaces &Default();
+	static const InstantReplaces &TextOnly();
 
 	int maxLength = 0;
 	Node reverseMap;