Show emoji fingerprint tooltip in call panel.

Telegram/SourceFiles/calls/calls_panel.cpp

@@ -35,6 +35,11 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "platform/platform_specific.h"
 
 namespace Calls {
+namespace {
+
+constexpr auto kTooltipShowTimeoutMs = 1000;
+
+} // namespace
 
 class Panel::Button : public Ui::RippleButton {
 public:
@@ -105,6 +110,7 @@ Panel::Panel(gsl::not_null<Call*> call)
 , _mute(this, st::callMuteToggle)
 , _name(this, st::callName)
 , _status(this, st::callStatus) {
+	setMouseTracking(true);
 	initControls();
 	initLayout();
 	showAndActivate();
@@ -358,14 +364,12 @@ void Panel::paintEvent(QPaintEvent *e) {
 	}
 
 	if (!_fingerprint.empty()) {
+		App::roundRect(p, _fingerprintArea, st::callFingerprintBg, ImageRoundRadius::Small);
+
 		auto realSize = Ui::Emoji::Size(Ui::Emoji::Index() + 1);
 		auto size = realSize / cIntRetinaFactor();
-		auto count = _fingerprint.size();
+		auto left = _fingerprintArea.left() + st::callFingerprintPadding.left();
-		auto rectWidth = count * size + (count - 1) * st::callFingerprintSkip;
+		auto top = _fingerprintArea.top() + st::callFingerprintPadding.top();
-		auto rectHeight = size;
-		auto left = (width() - rectWidth) / 2;
-		auto top = _contentTop - st::callFingerprintBottom - st::callFingerprintPadding.bottom() - size;
-		App::roundRect(p, QRect(left, top, rectWidth, rectHeight).marginsAdded(st::callFingerprintPadding), st::callFingerprintBg, ImageRoundRadius::Small);
 		for (auto emoji : _fingerprint) {
 			p.drawPixmap(QPoint(left, top), App::emojiLarge(), QRect(emoji->x() * realSize, emoji->y() * realSize, realSize, realSize));
 			left += st::callFingerprintSkip + size;
@@ -384,11 +388,16 @@ void Panel::mousePressEvent(QMouseEvent *e) {
 
 void Panel::mouseMoveEvent(QMouseEvent *e) {
 	if (_dragging) {
+		Ui::Tooltip::Hide();
 		if (!(e->buttons() & Qt::LeftButton)) {
 			_dragging = false;
 		} else {
 			move(_dragStartMyPosition + (e->globalPos() - _dragStartMousePosition));
 		}
+	} else if (_fingerprintArea.contains(e->pos())) {
+		Ui::Tooltip::Show(kTooltipShowTimeoutMs, this);
+	} else {
+		Ui::Tooltip::Hide();
 	}
 }
 
@@ -398,6 +407,26 @@ void Panel::mouseReleaseEvent(QMouseEvent *e) {
 	}
 }
 
+void Panel::leaveEventHook(QEvent *e) {
+	Ui::Tooltip::Hide();
+}
+
+void Panel::leaveToChildEvent(QEvent *e, QWidget *child) {
+	Ui::Tooltip::Hide();
+}
+
+QString Panel::tooltipText() const {
+	return lng_call_fingerprint_tooltip(lt_user, App::peerName(_user));
+}
+
+QPoint Panel::tooltipPos() const {
+	return QCursor::pos();
+}
+
+bool Panel::tooltipWindowActive() const {
+	return !isHidden();
+}
+
 void Panel::stateChanged(State state) {
 	updateStatusText(state);
 
@@ -425,14 +454,28 @@ void Panel::stateChanged(State state) {
 	}
 
 	if (_fingerprint.empty() && _call && _call->isKeyShaForFingerprintReady()) {
-		_fingerprint = ComputeEmojiFingerprint(_call.get());
+		fillFingerprint();
-		update();
 	}
 	if (state == State::Established && !isActiveWindow()) {
 		hideDeactivated();
 	}
 }
 
+void Panel::fillFingerprint() {
+	_fingerprint = ComputeEmojiFingerprint(_call.get());
+
+	auto realSize = Ui::Emoji::Size(Ui::Emoji::Index() + 1);
+	auto size = realSize / cIntRetinaFactor();
+	auto count = _fingerprint.size();
+	auto rectWidth = count * size + (count - 1) * st::callFingerprintSkip;
+	auto rectHeight = size;
+	auto left = (width() - rectWidth) / 2;
+	auto top = _contentTop - st::callFingerprintBottom - st::callFingerprintPadding.bottom() - size;
+	_fingerprintArea = QRect(left, top, rectWidth, rectHeight).marginsAdded(st::callFingerprintPadding);
+
+	update();
+}
+
 void Panel::updateStatusText(State state) {
 	auto statusText = [this, state]() -> QString {
 		switch (state) {

Telegram/SourceFiles/calls/calls_panel.h

@@ -21,8 +21,9 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #pragma once
 
 #include "base/weak_unique_ptr.h"
-#include "calls/calls_call.h"
 #include "base/timer.h"
+#include "calls/calls_call.h"
+#include "ui/widgets/tooltip.h"
 
 namespace Ui {
 class IconButton;
@@ -31,7 +32,7 @@ class FlatLabel;
 
 namespace Calls {
 
-class Panel : public TWidget, private base::Subscriber {
+class Panel : public TWidget, private base::Subscriber, private Ui::AbstractTooltipShower {
 public:
 	Panel(gsl::not_null<Call*> call);
 
@@ -43,12 +44,19 @@ protected:
 	void mousePressEvent(QMouseEvent *e) override;
 	void mouseReleaseEvent(QMouseEvent *e) override;
 	void mouseMoveEvent(QMouseEvent *e) override;
+	void leaveEventHook(QEvent *e) override;
+	void leaveToChildEvent(QEvent *e, QWidget *child) override;
 	bool event(QEvent *e) override;
 
 private:
 	using State = Call::State;
 	using Type = Call::Type;
 
+	// AbstractTooltipShower interface
+	QString tooltipText() const override;
+	QPoint tooltipPos() const override;
+	bool tooltipWindowActive() const override;
+
 	void initControls();
 	void initLayout();
 	void initGeometry();
@@ -68,6 +76,7 @@ private:
 	void stateChanged(State state);
 	void updateStatusText(State state);
 	void startDurationUpdateTimer(TimeMs currentDuration);
+	void fillFingerprint();
 
 	base::weak_unique_ptr<Call> _call;
 	gsl::not_null<UserData*> _user;
@@ -90,6 +99,7 @@ private:
 	object_ptr<Ui::FlatLabel> _name;
 	object_ptr<Ui::FlatLabel> _status;
 	std::vector<EmojiPtr> _fingerprint;
+	QRect _fingerprintArea;
 
 	base::Timer _updateDurationTimer;
 

Telegram/SourceFiles/ui/widgets/tooltip.cpp

@@ -24,6 +24,14 @@ namespace Ui {
 
 Tooltip *TooltipInstance = nullptr;
 
+bool AbstractTooltipShower::tooltipWindowActive() const {
+	if (auto window = App::wnd()) {
+		window->updateIsActive(0);
+		return window->isActive();
+	}
+	return false;
+}
+
 const style::Tooltip *AbstractTooltipShower::tooltipSt() const {
 	return &st::defaultTooltip;
 }
@@ -49,13 +57,7 @@ Tooltip::Tooltip() : TWidget(nullptr) {
 
 void Tooltip::onShow() {
 	if (_shower) {
-		auto text = QString();
+		auto text = _shower->tooltipWindowActive() ? _shower->tooltipText() : QString();
-		if (auto window = App::wnd()) {
-			window->updateIsActive(0);
-			if (window->isActive()) {
-				text = _shower->tooltipText();
-			}
-		}
 		if (text.isEmpty()) {
 			Hide();
 		} else {

Telegram/SourceFiles/ui/widgets/tooltip.h

@@ -27,8 +27,10 @@ class AbstractTooltipShower {
 public:
 	virtual QString tooltipText() const = 0;
 	virtual QPoint tooltipPos() const = 0;
+	virtual bool tooltipWindowActive() const;
 	virtual const style::Tooltip *tooltipSt() const;
 	virtual ~AbstractTooltipShower();
+
 };
 
 class Tooltip : public TWidget {