Implement jump-to-start / end by long press in CalendarBox.

Telegram/Resources/langs/lang.strings

@@ -78,7 +78,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_month_day_year" = "{month} {day}, {year}";
 "lng_month_year" = "{month} {year}";
 
-"lng_calendar_beginning" = "Beginning";
+"lng_calendar_select_days" = "Select days";
+"lng_calendar_start_tip" = "Press and hold to jump to the start.";
+"lng_calendar_end_tip" = "Press and hold to jump to the end.";
 
 "lng_box_ok" = "OK";
 "lng_box_done" = "Done";

Telegram/SourceFiles/ui/boxes/calendar_box.cpp

@@ -19,6 +19,8 @@ namespace {
 
 constexpr auto kDaysInWeek = 7;
 constexpr auto kMaxDaysForScroll = kDaysInWeek * 1000;
+constexpr auto kTooltipDelay = crl::time(1000);
+constexpr auto kJumpDelay = 2 * crl::time(1000);
 
 } // namespace
 
@@ -26,9 +28,9 @@ class CalendarBox::Context {
 public:
 	Context(QDate month, QDate highlighted);
 
-	void setBeginningButton(bool enabled);
-	[[nodiscard]] bool hasBeginningButton() const {
-		return _beginningButton;
+	void setHasSelection(bool has);
+	[[nodiscard]] bool hasSelection() const {
+		return _hasSelection;
 	}
 
 	void setMinDate(QDate date);
@@ -63,9 +65,6 @@ public:
 	[[nodiscard]] bool isEnabled(int index) const {
 		return (index >= _minDayIndex) && (index <= _maxDayIndex);
 	}
-	[[nodiscard]] bool atBeginning() const {
-		return _highlighted == _min;
-	}
 
 	[[nodiscard]] rpl::producer<QDate> monthValue() const {
 		return _month.value();
@@ -80,7 +79,7 @@ private:
 	static int DaysShiftForMonth(QDate month, QDate min);
 	static int RowsCountForMonth(QDate month, QDate min, QDate max);
 
-	bool _beginningButton = false;
+	bool _hasSelection = false;
 
 	rpl::variable<QDate> _month;
 	QDate _min, _max;
@@ -102,8 +101,8 @@ CalendarBox::Context::Context(QDate month, QDate highlighted)
 	showMonth(month);
 }
 
-void CalendarBox::Context::setBeginningButton(bool enabled) {
-	_beginningButton = enabled;
+void CalendarBox::Context::setHasSelection(bool has) {
+	_hasSelection = has;
 }
 
 void CalendarBox::Context::setMinDate(QDate date) {
@@ -245,7 +244,6 @@ public:
 
 	[[nodiscard]] int countMaxHeight() const;
 	void setDateChosenCallback(Fn<void(QDate)> callback);
-	void selectBeginning();
 
 	~Inner();
 
@@ -479,10 +477,6 @@ void CalendarBox::Inner::setDateChosenCallback(Fn<void(QDate)> callback) {
 	_dateChosenCallback = std::move(callback);
 }
 
-void CalendarBox::Inner::selectBeginning() {
-	_dateChosenCallback(_context->dateFromIndex(_context->minDayIndex()));
-}
-
 CalendarBox::Inner::~Inner() = default;
 
 class CalendarBox::Title final : public RpWidget {
@@ -575,9 +569,10 @@ CalendarBox::CalendarBox(QWidget*, CalendarBoxArgs &&args)
 , _previous(this, st::calendarPrevious)
 , _next(this, st::calendarNext)
 , _callback(std::move(args.callback.value()))
-, _finalize(std::move(args.finalize)) {
+, _finalize(std::move(args.finalize))
+, _jumpTimer([=] { jump(_jumpButton); }) {
 	_title->setAttribute(Qt::WA_TransparentForMouseEvents);
-	_context->setBeginningButton(args.hasBeginningButton);
+	_context->setHasSelection(args.allowsSelection);
 	_context->setMinDate(args.minDate);
 	_context->setMaxDate(args.maxDate);
 
@@ -587,6 +582,60 @@ CalendarBox::CalendarBox(QWidget*, CalendarBoxArgs &&args)
 	}) | rpl::start_with_next([=] {
 		processScroll();
 	}, lifetime());
+
+	const auto setupJumps = [&](
+			not_null<IconButton*> button,
+			not_null<bool*> enabled) {
+		button->events(
+		) | rpl::filter([=] {
+			return *enabled;
+		}) | rpl::start_with_next([=](not_null<QEvent*> e) {
+			const auto type = e->type();
+			if (type == QEvent::MouseMove
+				&& !(static_cast<QMouseEvent*>(e.get())->buttons()
+					& Qt::LeftButton)) {
+				showJumpTooltip(button);
+			} else if (type == QEvent::Leave) {
+				Ui::Tooltip::Hide();
+			} else if (type == QEvent::MouseButtonPress
+				&& (static_cast<QMouseEvent*>(e.get())->button()
+					== Qt::LeftButton)) {
+				jumpAfterDelay(button);
+			} else if (type == QEvent::MouseButtonRelease
+				&& (static_cast<QMouseEvent*>(e.get())->button()
+					== Qt::LeftButton)) {
+				_jumpTimer.cancel();
+			}
+		}, lifetime());
+	};
+	setupJumps(_previous.data(), &_previousEnabled);
+	setupJumps(_next.data(), &_nextEnabled);
+}
+
+void CalendarBox::showJumpTooltip(not_null<IconButton*> button) {
+	_tooltipButton = button;
+	Ui::Tooltip::Show(kTooltipDelay, this);
+}
+
+void CalendarBox::jumpAfterDelay(not_null<IconButton*> button) {
+	_jumpButton = button;
+	_jumpTimer.callOnce(kJumpDelay);
+	Ui::Tooltip::Hide();
+}
+
+void CalendarBox::jump(QPointer<IconButton> button) {
+	const auto jumpToIndex = [&](int index) {
+		_watchScroll = false;
+		_context->showMonth(_context->dateFromIndex(index));
+		setExactScroll();
+	};
+	if (_jumpButton == _previous.data() && _previousEnabled) {
+		jumpToIndex(_context->minDayIndex());
+	} else if (_jumpButton == _next.data() && _nextEnabled) {
+		jumpToIndex(_context->maxDayIndex());
+	}
+	_jumpButton = nullptr;
+	_jumpTimer.cancel();
 }
 
 void CalendarBox::prepare() {
@@ -606,9 +655,8 @@ void CalendarBox::prepare() {
 	if (_finalize) {
 		_finalize(this);
 	}
-	if (!_context->atBeginning() && _context->hasBeginningButton()) {
-		addLeftButton(tr::lng_calendar_beginning(), [=] {
-			_inner->selectBeginning();
+	if (_context->hasSelection()) {
+		addLeftButton(tr::lng_calendar_select_days(), [=] {
 		});
 	}
 }
@@ -666,16 +714,40 @@ void CalendarBox::processScroll() {
 	_watchScroll = true;
 }
 
+QString CalendarBox::tooltipText() const {
+	if (_tooltipButton == _previous.data()) {
+		return tr::lng_calendar_start_tip(tr::now);
+	} else if (_tooltipButton == _next.data()) {
+		return tr::lng_calendar_end_tip(tr::now);
+	}
+	return QString();
+}
+
+QPoint CalendarBox::tooltipPos() const {
+	return QCursor::pos();
+}
+
+bool CalendarBox::tooltipWindowActive() const {
+	return window()->isActiveWindow();
+}
+
 void CalendarBox::monthChanged(QDate month) {
 	setDimensions(_st.width, st::calendarTitleHeight + _st.daysHeight + _inner->countMaxHeight());
-	auto previousEnabled = isPreviousEnabled();
-	_previous->setIconOverride(previousEnabled ? nullptr : &st::calendarPreviousDisabled);
-	_previous->setRippleColorOverride(previousEnabled ? nullptr : &st::boxBg);
-	_previous->setCursor(previousEnabled ? style::cur_pointer : style::cur_default);
-	auto nextEnabled = isNextEnabled();
-	_next->setIconOverride(nextEnabled ? nullptr : &st::calendarNextDisabled);
-	_next->setRippleColorOverride(nextEnabled ? nullptr : &st::boxBg);
-	_next->setCursor(nextEnabled ? style::cur_pointer : style::cur_default);
+
+	_previousEnabled = isPreviousEnabled();
+	_previous->setIconOverride(_previousEnabled ? nullptr : &st::calendarPreviousDisabled);
+	_previous->setRippleColorOverride(_previousEnabled ? nullptr : &st::boxBg);
+	_previous->setCursor(_previousEnabled ? style::cur_pointer : style::cur_default);
+	if (!_previousEnabled) {
+		_previous->clearState();
+	}
+	_nextEnabled = isNextEnabled();
+	_next->setIconOverride(_nextEnabled ? nullptr : &st::calendarNextDisabled);
+	_next->setRippleColorOverride(_nextEnabled ? nullptr : &st::boxBg);
+	_next->setCursor(_nextEnabled ? style::cur_pointer : style::cur_default);
+	if (!_nextEnabled) {
+		_next->clearState();
+	}
 }
 
 void CalendarBox::resizeEvent(QResizeEvent *e) {
@@ -700,7 +772,9 @@ void CalendarBox::keyPressEvent(QKeyEvent *e) {
 	if (e->key() == Qt::Key_Escape) {
 		e->ignore();
 	} else if (e->key() == Qt::Key_Home) {
-		_inner->selectBeginning();
+		jump(_previous.data());
+	} else if (e->key() == Qt::Key_End) {
+		jump(_next.data());
 	} else if (e->key() == Qt::Key_Left || e->key() == Qt::Key_Up) {
 		goPreviousMonth();
 	} else if (e->key() == Qt::Key_Right || e->key() == Qt::Key_Down) {

Telegram/SourceFiles/ui/boxes/calendar_box.h

@@ -8,7 +8,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #pragma once
 
 #include "ui/layers/box_content.h"
+#include "ui/widgets/tooltip.h"
 #include "base/required.h"
+#include "base/timer.h"
 
 namespace style {
 struct CalendarSizes;
@@ -35,10 +37,10 @@ struct CalendarBoxArgs {
 	const style::CalendarSizes &st = st::defaultCalendarSizes;
 	QDate minDate;
 	QDate maxDate;
-	bool hasBeginningButton = false;
+	bool allowsSelection = false;
 };
 
-class CalendarBox final : public BoxContent {
+class CalendarBox final : public BoxContent, private AbstractTooltipShower {
 public:
 	CalendarBox(QWidget*, CalendarBoxArgs &&args);
 	~CalendarBox();
@@ -60,6 +62,14 @@ private:
 	void setExactScroll();
 	void processScroll();
 
+	void showJumpTooltip(not_null<IconButton*> button);
+	void jumpAfterDelay(not_null<IconButton*> button);
+	void jump(QPointer<IconButton> button);
+
+	QString tooltipText() const override;
+	QPoint tooltipPos() const override;
+	bool tooltipWindowActive() const override;
+
 	const style::CalendarSizes &_st;
 
 	class Context;
@@ -74,11 +84,17 @@ private:
 	object_ptr<Title> _title;
 	object_ptr<IconButton> _previous;
 	object_ptr<IconButton> _next;
+	bool _previousEnabled = false;
+	bool _nextEnabled = false;
 
 	Fn<void(QDate date)> _callback;
 	FnMut<void(not_null<CalendarBox*>)> _finalize;
 	bool _watchScroll = false;
 
+	QPointer<IconButton> _tooltipButton;
+	QPointer<IconButton> _jumpButton;
+	base::Timer _jumpTimer;
+
 };
 
 } // namespace Ui

Telegram/SourceFiles/window/window_session_controller.cpp

@@ -1147,63 +1147,61 @@ void SessionController::startOrJoinGroupCall(
 }
 
 void SessionController::showJumpToDate(Dialogs::Key chat, QDate requestedDate) {
+	const auto history = chat.history();
+	if (!history) {
+		return;
+	}
 	const auto currentPeerDate = [&] {
-		if (const auto history = chat.history()) {
-			if (history->scrollTopItem) {
-				return history->scrollTopItem->dateTime().date();
-			} else if (history->loadedAtTop()
-				&& !history->isEmpty()
-				&& history->peer->migrateFrom()) {
-				if (const auto migrated = history->owner().historyLoaded(history->peer->migrateFrom())) {
-					if (migrated->scrollTopItem) {
-						// We're up in the migrated history.
-						// So current date is the date of first message here.
-						return history->blocks.front()->messages.front()->dateTime().date();
-					}
+		if (history->scrollTopItem) {
+			return history->scrollTopItem->dateTime().date();
+		} else if (history->loadedAtTop()
+			&& !history->isEmpty()
+			&& history->peer->migrateFrom()) {
+			if (const auto migrated = history->owner().historyLoaded(history->peer->migrateFrom())) {
+				if (migrated->scrollTopItem) {
+					// We're up in the migrated history.
+					// So current date is the date of first message here.
+					return history->blocks.front()->messages.front()->dateTime().date();
 				}
-			} else if (const auto item = history->lastMessage()) {
-				return base::unixtime::parse(item->date()).date();
 			}
+		} else if (const auto item = history->lastMessage()) {
+			return base::unixtime::parse(item->date()).date();
 		}
 		return QDate();
 	}();
-	const auto maxPeerDate = [](Dialogs::Key chat) {
-		if (auto history = chat.history()) {
-			if (const auto channel = history->peer->migrateTo()) {
-				history = channel->owner().historyLoaded(channel);
-			}
-			if (const auto item = history ? history->lastMessage() : nullptr) {
-				return base::unixtime::parse(item->date()).date();
-			}
+	const auto maxPeerDate = [&] {
+		const auto check = history->peer->migrateTo()
+			? history->owner().historyLoaded(history->peer->migrateTo())
+			: history;
+		if (const auto item = check ? check->lastMessage() : nullptr) {
+			return base::unixtime::parse(item->date()).date();
 		}
-		return QDate::currentDate();
-	};
-	const auto minPeerDate = [](Dialogs::Key chat) {
+		return QDate();
+	}();
+	const auto minPeerDate = [&] {
 		const auto startDate = [] {
 			// Telegram was launched in August 2013 :)
 			return QDate(2013, 8, 1);
 		};
-		if (const auto history = chat.history()) {
-			if (const auto chat = history->peer->migrateFrom()) {
-				if (const auto history = chat->owner().historyLoaded(chat)) {
-					if (history->loadedAtTop()) {
-						if (!history->isEmpty()) {
-							return history->blocks.front()->messages.front()->dateTime().date();
-						}
-					} else {
-						return startDate();
+		if (const auto chat = history->peer->migrateFrom()) {
+			if (const auto history = chat->owner().historyLoaded(chat)) {
+				if (history->loadedAtTop()) {
+					if (!history->isEmpty()) {
+						return history->blocks.front()->messages.front()->dateTime().date();
 					}
+				} else {
+					return startDate();
 				}
 			}
-			if (history->loadedAtTop()) {
-				if (!history->isEmpty()) {
-					return history->blocks.front()->messages.front()->dateTime().date();
-				}
-				return QDate::currentDate();
-			}
+		}
+		if (history->loadedAtTop()) {
+			if (!history->isEmpty()) {
+				return history->blocks.front()->messages.front()->dateTime().date();
+			}
+			return QDate::currentDate();
 		}
 		return startDate();
-	};
+	}();
 	const auto highlighted = !requestedDate.isNull()
 		? requestedDate
 		: !currentPeerDate.isNull()
@@ -1215,9 +1213,9 @@ void SessionController::showJumpToDate(Dialogs::Key chat, QDate requestedDate) {
 		.callback = [=](const QDate &date) {
 			session().api().jumpToDate(chat, date);
 		},
-		.minDate = minPeerDate(chat),
-		.maxDate = maxPeerDate(chat),
-		.hasBeginningButton = true,
+		.minDate = minPeerDate,
+		.maxDate = maxPeerDate,
+		.allowsSelection = history->peer->isUser(),
 	}));
 }