Feed initial messages slice to translation tracker.

Telegram/SourceFiles/history/history.cpp

@@ -9,6 +9,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "history/view/history_view_element.h"
 #include "history/view/history_view_item_preview.h"
+#include "history/view/history_view_translate_tracker.h"
 #include "dialogs/dialogs_indexed_list.h"
 #include "history/history_inner_widget.h"
 #include "history/history_item.h"

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -555,6 +555,9 @@ void HistoryInner::messagesReceived(
 		const QVector<MTPMessage> &messages) {
 	if (_history->peer == peer) {
 		_history->addOlderSlice(messages);
+		if (!messages.isEmpty()) {
+			_translateTracker->addBunchFromBlocks();
+		}
 	} else if (_migrated && _migrated->peer == peer) {
 		const auto newLoaded = _migrated
 			&& _migrated->isEmpty()

Telegram/SourceFiles/history/view/history_view_list_widget.cpp

@@ -523,6 +523,9 @@ void ListWidget::refreshRows(const Data::MessagesSlice &old) {
 			}
 		}
 	}
+	if (_translateTracker) {
+		_translateTracker->addBunchFrom(_items);
+	}
 	for (auto e = end(_items), i = e - addedToEndCount; i != e; ++i) {
 		_itemRevealPending.emplace(*i);
 	}

Telegram/SourceFiles/history/view/history_view_translate_bar.cpp

@@ -279,7 +279,7 @@ void TranslateBar::setup(not_null<History*> history) {
 		}
 	};
 	const auto button = static_cast<Ui::AbstractButton*>(_wrap.entity());
-	button->resize(0, st::historyComposeButton.height);
+	button->resize(0, st::historyTranslateBarHeight);
 	button->setAttribute(Qt::WA_OpaquePaintEvent);
 
 	button->paintRequest(
@@ -619,7 +619,7 @@ int TranslateBar::height() const {
 	return !_forceHidden
 		? _wrap.height()
 		: _shouldBeShown
-		? st::historyComposeButton.height
+		? st::historyTranslateBarHeight
 		: 0;
 }
 

Telegram/SourceFiles/history/view/history_view_translate_tracker.cpp

@@ -26,6 +26,7 @@ namespace {
 
 constexpr auto kEnoughForRecognition = 10;
 constexpr auto kEnoughForTranslation = 6;
+constexpr auto kMaxCheckInBunch = 100;
 constexpr auto kRequestLengthLimit = 24 * 1024;
 constexpr auto kRequestCountLimit = 20;
 
@@ -82,20 +83,20 @@ void TranslateTracker::startBunch() {
 	++_generation;
 }
 
-void TranslateTracker::add(not_null<Element*> view) {
+bool TranslateTracker::add(not_null<Element*> view) {
 	const auto item = view->data();
 	const auto only = view->isOnlyEmojiAndSpaces();
 	if (only != OnlyEmojiAndSpaces::Unknown) {
 		item->cacheOnlyEmojiAndSpaces(only == OnlyEmojiAndSpaces::Yes);
 	}
-	add(item, false);
+	return add(item, false);
 }
 
-void TranslateTracker::add(not_null<HistoryItem*> item) {
+bool TranslateTracker::add(not_null<HistoryItem*> item) {
-	add(item, false);
+	return add(item, false);
 }
 
-void TranslateTracker::add(
+bool TranslateTracker::add(
 		not_null<HistoryItem*> item,
 		bool skipDependencies) {
 	Expects(_addedInBunch >= 0);
@@ -104,7 +105,7 @@ void TranslateTracker::add(
 		|| item->isService()
 		|| !item->isRegular()
 		|| item->isOnlyEmojiAndSpaces()) {
-		return;
+		return false;
 	}
 	if (item->translationShowRequiresCheck(_bunchTranslatedTo)) {
 		_switchTranslations[item] = _bunchTranslatedTo;
@@ -131,7 +132,7 @@ void TranslateTracker::add(
 	const auto i = _itemsForRecognize.find(id);
 	if (i != end(_itemsForRecognize)) {
 		i->second.generation = _generation;
-		return;
+		return true;
 	}
 	const auto &text = item->originalText().text;
 	_itemsForRecognize.emplace(id, ItemForRecognize{
@@ -141,6 +142,7 @@ void TranslateTracker::add(
 			: MaybeLanguageId{ text }),
 	});
 	++_addedInBunch;
+	return true;
 }
 
 void TranslateTracker::switchTranslation(
@@ -173,6 +175,43 @@ void TranslateTracker::finishBunch() {
 	requestSome();
 }
 
+void TranslateTracker::addBunchFromBlocks() {
+	if (enoughForRecognition()) {
+		return;
+	}
+	startBunch();
+	const auto guard = gsl::finally([&] {
+		finishBunch();
+	});
+
+	auto check = kMaxCheckInBunch;
+	for (const auto &block : _history->blocks) {
+		for (const auto &view : block->messages) {
+			if (!check-- || (add(view.get()) && enoughForRecognition())) {
+				return;
+			}
+		}
+	}
+}
+
+void TranslateTracker::addBunchFrom(
+		const std::vector<not_null<Element*>> &views) {
+	if (enoughForRecognition()) {
+		return;
+	}
+	startBunch();
+	const auto guard = gsl::finally([&] {
+		finishBunch();
+	});
+
+	auto check = kMaxCheckInBunch;
+	for (const auto &view : views) {
+		if (!check-- || (add(view.get()) && enoughForRecognition())) {
+			return;
+		}
+	}
+}
+
 void TranslateTracker::cancelToRequest() {
 	if (!_itemsToRequest.empty()) {
 		const auto owner = &_history->owner();

Telegram/SourceFiles/history/view/history_view_translate_tracker.h

@@ -23,10 +23,13 @@ public:
 
 	[[nodiscard]] bool enoughForRecognition() const;
 	void startBunch();
-	void add(not_null<Element*> view);
+	bool add(not_null<Element*> view);
-	void add(not_null<HistoryItem*> item);
+	bool add(not_null<HistoryItem*> item);
 	void finishBunch();
 
+	void addBunchFromBlocks();
+	void addBunchFrom(const std::vector<not_null<Element*>> &views);
+
 	[[nodiscard]] rpl::producer<bool> trackingLanguage() const;
 
 private:
@@ -40,7 +43,7 @@ private:
 	};
 
 	void setup();
-	void add(not_null<HistoryItem*> item, bool skipDependencies);
+	bool add(not_null<HistoryItem*> item, bool skipDependencies);
 	void recognizeCollected();
 	void trackSkipLanguages();
 	void checkRecognized();

Telegram/SourceFiles/ui/chat/chat.style

@@ -1237,18 +1237,19 @@ historyTranslateLabel: FlatLabel(defaultFlatLabel) {
 	minWidth: 80px;
 }
 historyTranslateIcon: icon{{ "menu/translate", windowActiveTextFg }};
+historyTranslateBarHeight: 36px;
 historyTranslateSettings: IconButton(defaultIconButton) {
 	width: 46px;
-	height: 46px;
+	height: 36px;
 	icon: icon{{ "menu/customize", windowActiveTextFg }};
 	iconOver: icon{{ "menu/customize", windowActiveTextFg }};
-	rippleAreaPosition: point(4px, 4px);
+	rippleAreaPosition: point(6px, 2px);
-	rippleAreaSize: 38px;
+	rippleAreaSize: 32px;
 	ripple: RippleAnimation(defaultRippleAnimation) {
 		color: lightButtonBgOver;
 	}
 }
-historyTranslateMenuPosition: point(-6px, 40px);
+historyTranslateMenuPosition: point(-6px, 30px);
 
 historySendDisabled: FlatLabel(defaultFlatLabel) {
 	minWidth: 10px;