Use nice fake message for effect preview.

Telegram/CMakeLists.txt

@@ -799,6 +799,8 @@ PRIVATE
     history/view/history_view_emoji_interactions.h
     history/view/history_view_empty_list_bubble.cpp
     history/view/history_view_empty_list_bubble.h
+    history/view/history_view_fake_items.cpp
+    history/view/history_view_fake_items.h
     history/view/history_view_group_call_bar.cpp
     history/view/history_view_group_call_bar.h
     history/view/history_view_item_preview.h

Telegram/SourceFiles/boxes/reactions_settings_box.cpp

@@ -16,8 +16,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/admin_log/history_admin_log_item.h"
 #include "history/history.h"
 #include "history/history_item.h"
-#include "history/view/history_view_element.h"
 #include "history/view/reactions/history_view_reactions_strip.h"
+#include "history/view/history_view_element.h"
+#include "history/view/history_view_fake_items.h"
 #include "lang/lang_keys.h"
 #include "boxes/premium_preview_box.h"
 #include "main/main_session.h"
@@ -43,53 +44,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 namespace {
 
-PeerId GenerateUser(not_null<History*> history, const QString &name) {
-	Expects(history->peer->isUser());
-
-	const auto peerId = Data::FakePeerIdForJustName(name);
-	history->owner().processUser(MTP_user(
-		MTP_flags(MTPDuser::Flag::f_first_name | MTPDuser::Flag::f_min),
-		peerToBareMTPInt(peerId),
-		MTP_long(0),
-		MTP_string(tr::lng_settings_chat_message_reply_from(tr::now)),
-		MTPstring(), // last name
-		MTPstring(), // username
-		MTPstring(), // phone
-		MTPUserProfilePhoto(), // profile photo
-		MTPUserStatus(), // status
-		MTP_int(0), // bot info version
-		MTPVector<MTPRestrictionReason>(), // restrictions
-		MTPstring(), // bot placeholder
-		MTPstring(), // lang code
-		MTPEmojiStatus(),
-		MTPVector<MTPUsername>(),
-		MTPint(), // stories_max_id
-		MTPPeerColor(), // color
-		MTPPeerColor())); // profile_color
-	return peerId;
-}
-
-AdminLog::OwnedItem GenerateItem(
-		not_null<HistoryView::ElementDelegate*> delegate,
-		not_null<History*> history,
-		PeerId from,
-		FullMsgId replyTo,
-		const QString &text) {
-	Expects(history->peer->isUser());
-
-	const auto item = history->addNewLocalMessage({
-		.id = history->nextNonHistoryEntryId(),
-		.flags = (MessageFlag::FakeHistoryItem
-			| MessageFlag::HasFromId
-			| MessageFlag::HasReplyInfo),
-		.from = from,
-		.replyTo = FullReplyTo{ .messageId = replyTo },
-		.date = base::unixtime::now(),
-	}, TextWithEntities{ .text = text }, MTP_messageMediaEmpty());
-
-	return AdminLog::OwnedItem(delegate, item);
-}
-
 void AddMessage(
 		not_null<Ui::VerticalLayout*> container,
 		not_null<Window::SessionController*> controller,
@@ -135,15 +89,15 @@ void AddMessage(
 
 	const auto history = controller->session().data().history(
 		PeerData::kServiceNotificationsId);
-	state->reply = GenerateItem(
+	state->reply = HistoryView::GenerateItem(
 		state->delegate.get(),
 		history,
-		GenerateUser(
+		HistoryView::GenerateUser(
 			history,
 			tr::lng_settings_chat_message_reply_from(tr::now)),
 		FullMsgId(),
 		tr::lng_settings_chat_message_reply(tr::now));
-	auto message = GenerateItem(
+	auto message = HistoryView::GenerateItem(
 		state->delegate.get(),
 		history,
 		history->peer->id,

Telegram/SourceFiles/history/view/history_view_fake_items.cpp

@@ -0,0 +1,66 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "history/view/history_view_fake_items.h"
+
+#include "base/unixtime.h"
+#include "data/data_session.h"
+#include "history/history.h"
+#include "history/history_item.h"
+
+namespace HistoryView {
+
+AdminLog::OwnedItem GenerateItem(
+		not_null<HistoryView::ElementDelegate*> delegate,
+		not_null<History*> history,
+		PeerId from,
+		FullMsgId replyTo,
+		const QString &text,
+		EffectId effectId) {
+	Expects(history->peer->isUser());
+
+	const auto item = history->addNewLocalMessage({
+		.id = history->nextNonHistoryEntryId(),
+		.flags = (MessageFlag::FakeHistoryItem
+			| MessageFlag::HasFromId
+			| MessageFlag::HasReplyInfo),
+		.from = from,
+		.replyTo = FullReplyTo{.messageId = replyTo },
+		.date = base::unixtime::now(),
+		.effectId = effectId,
+	}, TextWithEntities{ .text = text }, MTP_messageMediaEmpty());
+
+	return AdminLog::OwnedItem(delegate, item);
+}
+
+PeerId GenerateUser(not_null<History*> history, const QString &name) {
+	Expects(history->peer->isUser());
+
+	const auto peerId = Data::FakePeerIdForJustName(name);
+	history->owner().processUser(MTP_user(
+		MTP_flags(MTPDuser::Flag::f_first_name | MTPDuser::Flag::f_min),
+		peerToBareMTPInt(peerId),
+		MTP_long(0),
+		MTP_string(name),
+		MTPstring(), // last name
+		MTPstring(), // username
+		MTPstring(), // phone
+		MTPUserProfilePhoto(), // profile photo
+		MTPUserStatus(), // status
+		MTP_int(0), // bot info version
+		MTPVector<MTPRestrictionReason>(), // restrictions
+		MTPstring(), // bot placeholder
+		MTPstring(), // lang code
+		MTPEmojiStatus(),
+		MTPVector<MTPUsername>(),
+		MTPint(), // stories_max_id
+		MTPPeerColor(), // color
+		MTPPeerColor())); // profile_color
+	return peerId;
+}
+
+} // namespace HistoryView

Telegram/SourceFiles/history/view/history_view_fake_items.h

@@ -0,0 +1,26 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "history/admin_log/history_admin_log_item.h"
+
+namespace HistoryView {
+
+[[nodiscard]] AdminLog::OwnedItem GenerateItem(
+	not_null<HistoryView::ElementDelegate*> delegate,
+	not_null<History*> history,
+	PeerId from,
+	FullMsgId replyTo,
+	const QString &text,
+	EffectId effectId = 0);
+
+[[nodiscard]] PeerId GenerateUser(
+	not_null<History*> history,
+	const QString &name);
+
+} // namespace HistoryView

Telegram/SourceFiles/menu/menu_send.cpp

@@ -9,17 +9,25 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "api/api_common.h"
 #include "base/event_filter.h"
+#include "base/unixtime.h"
 #include "boxes/abstract_box.h"
 #include "chat_helpers/compose/compose_show.h"
 #include "chat_helpers/stickers_emoji_pack.h"
 #include "core/shortcuts.h"
+#include "history/admin_log/history_admin_log_item.h"
 #include "history/view/media/history_view_sticker.h"
 #include "history/view/reactions/history_view_reactions_selector.h"
+#include "history/view/history_view_element.h"
+#include "history/view/history_view_fake_items.h"
 #include "history/view/history_view_schedule_box.h"
+#include "history/history.h"
+#include "history/history_item.h"
+#include "history/history_unread_things.h"
 #include "lang/lang_keys.h"
 #include "lottie/lottie_single_player.h"
 #include "ui/chat/chat_style.h"
 #include "ui/chat/chat_theme.h"
+#include "ui/effects/path_shift_gradient.h"
 #include "ui/effects/ripple_animation.h"
 #include "ui/widgets/buttons.h"
 #include "ui/widgets/popup_menu.h"
@@ -33,20 +41,39 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_message_reactions.h"
 #include "data/data_session.h"
 #include "main/main_session.h"
-#include "history/history.h"
-#include "history/history_unread_things.h"
 #include "apiwrap.h"
 #include "window/themes/window_theme.h"
 #include "window/section_widget.h"
 #include "styles/style_chat.h"
 #include "styles/style_chat_helpers.h"
 #include "styles/style_menu_icons.h"
+#include "styles/style_window.h"
 
 #include <QtWidgets/QApplication>
 
 namespace SendMenu {
 namespace {
 
+class Delegate final : public HistoryView::DefaultElementDelegate {
+public:
+	Delegate(not_null<Ui::PathShiftGradient*> pathGradient)
+	: _pathGradient(pathGradient) {
+	}
+
+private:
+	bool elementAnimationsPaused() override {
+		return false;
+	}
+	not_null<Ui::PathShiftGradient*> elementPathShiftGradient() override {
+		return _pathGradient;
+	}
+	HistoryView::Context elementContext() override {
+		return HistoryView::Context::ContactPreview;
+	}
+
+	const not_null<Ui::PathShiftGradient*> _pathGradient;
+};
+
 class EffectPreview final : public Ui::RpWidget {
 public:
 	EffectPreview(
@@ -64,6 +91,7 @@ private:
 
 	void setupGeometry(QPoint position);
 	void setupBackground();
+	void setupItem();
 	void repaintBackground();
 	void setupLottie();
 	void setupSend(Details details);
@@ -71,10 +99,16 @@ private:
 
 	[[nodiscard]] bool checkReady();
 
+	const EffectId _effectId = 0;
 	const Data::Reaction _effect;
 	const std::shared_ptr<ChatHelpers::Show> _show;
 	const std::shared_ptr<Ui::ChatTheme> _theme;
 	const std::unique_ptr<Ui::ChatStyle> _chatStyle;
+	const std::unique_ptr<Ui::PathShiftGradient> _pathGradient;
+	const std::unique_ptr<Delegate> _delegate;
+	const not_null<History*> _history;
+	const AdminLog::OwnedItem _replyTo;
+	const AdminLog::OwnedItem _item;
 	const std::unique_ptr<Ui::FlatButton> _send;
 	const Fn<void(Action, Details)> _actionWithEffect;
 
@@ -86,6 +120,7 @@ private:
 
 	QRect _inner;
 	QImage _bg;
+	QPoint _itemShift;
 
 	rpl::lifetime _readyCheckLifetime;
 
@@ -169,37 +204,67 @@ EffectPreview::EffectPreview(
 	Fn<void(Action, Details)> action,
 	Fn<void()> done)
 : RpWidget(parent)
+, _effectId(effect.id.custom())
 , _effect(effect)
 , _show(show)
 , _theme(Window::Theme::DefaultChatThemeOn(lifetime()))
 , _chatStyle(
 	std::make_unique<Ui::ChatStyle>(
 		_show->session().colorIndicesValue()))
+, _pathGradient(
+	HistoryView::MakePathShiftGradient(_chatStyle.get(), [=] { update(); }))
+, _delegate(std::make_unique<Delegate>(_pathGradient.get()))
+, _history(show->session().data().history(
+	PeerData::kServiceNotificationsId))
+, _replyTo(HistoryView::GenerateItem(
+	_delegate.get(),
+	_history,
+	HistoryView::GenerateUser(
+		_history,
+		tr::lng_settings_chat_message_reply_from(tr::now)),
+	FullMsgId(),
+	tr::lng_settings_chat_message(tr::now)))
+, _item(HistoryView::GenerateItem(
+	_delegate.get(),
+	_history,
+	_history->peer->id,
+	_replyTo->data()->fullId(),
+	tr::lng_settings_chat_message_reply(tr::now),
+	_effectId))
 , _send(
 	std::make_unique<BottomRounded>(
 		this,
 		tr::lng_effect_send(tr::now),
 		st::effectPreviewSend))
-, _actionWithEffect(
-	ComposeActionWithEffect(
-		action,
-		effect.id.custom(),
-		done)) {
+, _actionWithEffect(ComposeActionWithEffect(action, _effectId, done)) {
 	setupGeometry(position);
 	setupBackground();
+	setupItem();
 	setupLottie();
 	setupSend(details);
 }
 
 void EffectPreview::paintEvent(QPaintEvent *e) {
-	auto p = QPainter(this);
+	auto p = Painter(this);
 	p.drawImage(0, 0, _bg);
 
+	p.setClipRect(_inner);
+	p.translate(_itemShift);
+	auto rect = QRect(0, 0, st::windowMinWidth, _inner.height());
+	auto context = _theme->preparePaintContext(
+		_chatStyle.get(),
+		rect,
+		rect,
+		false);
+	context.outbg = _item->hasOutLayout();
+	_item->draw(p, context);
+	p.translate(-_itemShift);
+
 	if (_lottie && _lottie->ready()) {
 		const auto factor = style::DevicePixelRatio();
 		auto request = Lottie::FrameRequest();
 		request.box = _inner.size() * factor;
-		const auto rightAligned = false;// hasRightLayout();
+		const auto rightAligned = _item->hasRightLayout();
 		if (!rightAligned) {
 			request.mirrorHorizontal = true;
 		}
@@ -255,6 +320,22 @@ void EffectPreview::setupBackground() {
 	}, lifetime());
 }
 
+void EffectPreview::setupItem() {
+	_item->resizeGetHeight(st::windowMinWidth);
+
+	const auto icon = _item->effectIconGeometry();
+	Assert(!icon.isEmpty());
+
+	const auto size = _inner.size();
+	const auto shift = _item->hasRightLayout()
+		? (-size.width() / 3)
+		: (size.width() / 3);
+	const auto position = QPoint(
+		shift + icon.x() + (icon.width() - size.width()) / 2,
+		icon.y() + (icon.height() - size.height()) / 2);
+	_itemShift = _inner.topLeft() - position;
+}
+
 void EffectPreview::repaintBackground() {
 	const auto ratio = style::DevicePixelRatio();
 	const auto inner = _inner.size() + QSize(0, _send->height());
@@ -270,25 +351,6 @@ void EffectPreview::repaintBackground() {
 			_theme.get(),
 			QSize(inner.width(), inner.height() * 5),
 			QRect(QPoint(), inner));
-
-		{ // bubble
-			const auto radius = st::bubbleRadiusLarge;
-			const auto out = 2 * radius;
-			p.setPen(Qt::NoPen);
-			p.setBrush(_chatStyle->msgInShadow());
-			const auto skip = st::msgPadding.bottom() - st::msgDateDelta.y();
-			p.drawRoundedRect(-out, -out, out + inner.width() / 3, out + inner.height() / 2 + st::normalFont->height / 2 + st::msgShadow, radius, radius);
-			p.setBrush(_chatStyle->msgInBg());
-			p.drawRoundedRect(-out, -out, out + inner.width() / 3, out + inner.height() / 2 + st::normalFont->height / 2, radius, radius);
-
-			if (!_icon.isNull()) {
-				p.drawImage(
-					inner.width() / 3 - _icon.width(),
-					inner.height() / 2 + st::normalFont->height / 2 - _icon.height(),
-					_icon);
-			}
-		}
-
 		p.fillRect(
 			QRect(0, _inner.height(), _inner.width(), _send->height()),
 			st::previewMarkRead.bgColor);
@@ -300,6 +362,7 @@ void EffectPreview::repaintBackground() {
 
 	_bg.fill(Qt::transparent);
 	auto p = QPainter(&_bg);
+
 	const auto &shadow = st::previewMenu.animation.shadow;
 	const auto shadowed = QRect(_inner.topLeft(), inner);
 	Ui::Shadow::paint(p, shadowed, width(), shadow);
@@ -307,9 +370,8 @@ void EffectPreview::repaintBackground() {
 }
 
 void EffectPreview::setupLottie() {
-	const auto id = _effect.id.custom();
 	const auto reactions = &_show->session().data().reactions();
-	reactions->preloadEffectImageFor(id);
+	reactions->preloadEffectImageFor(_effectId);
 
 	if (const auto document = _effect.aroundAnimation) {
 		_media = document->createMediaView();