420 lines
		
	
	
	
		
			10 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			420 lines
		
	
	
	
		
			10 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "chat_helpers/tabbed_panel.h"
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#include "ui/widgets/shadow.h"
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#include "styles/style_chat_helpers.h"
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#include "chat_helpers/tabbed_selector.h"
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#include "window/window_controller.h"
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#include "mainwindow.h"
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#include "messenger.h"
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namespace ChatHelpers {
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namespace {
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constexpr auto kHideTimeoutMs = 300;
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constexpr auto kDelayedHideTimeoutMs = 3000;
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} // namespace
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TabbedPanel::TabbedPanel(
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	QWidget *parent,
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	not_null<Window::Controller*> controller)
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: TabbedPanel(
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	parent,
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	controller,
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	object_ptr<TabbedSelector>(nullptr, controller)) {
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}
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TabbedPanel::TabbedPanel(
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	QWidget *parent,
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	not_null<Window::Controller*> controller,
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	object_ptr<TabbedSelector> selector)
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: RpWidget(parent)
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, _controller(controller)
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, _selector(std::move(selector)) {
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	_selector->setParent(this);
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	_selector->setRoundRadius(st::buttonRadius);
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	_selector->setAfterShownCallback([this](SelectorTab tab) {
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		if (tab == SelectorTab::Gifs) {
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			_controller->enableGifPauseReason(Window::GifPauseReason::SavedGifs);
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		}
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	});
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	_selector->setBeforeHidingCallback([this](SelectorTab tab) {
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		if (tab == SelectorTab::Gifs) {
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			_controller->disableGifPauseReason(Window::GifPauseReason::SavedGifs);
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		}
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	});
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	_selector->showRequests(
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	) | rpl::start_with_next([this] {
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		this->showFromSelector();
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	}, lifetime());
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	resize(QRect(0, 0, st::emojiPanWidth, st::emojiPanMaxHeight).marginsAdded(innerPadding()).size());
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	_contentMaxHeight = st::emojiPanMaxHeight;
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	_contentHeight = _contentMaxHeight;
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	_selector->resize(st::emojiPanWidth, _contentHeight);
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	_selector->move(innerRect().topLeft());
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	_hideTimer.setCallback([this] { hideByTimerOrLeave(); });
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	connect(_selector, &TabbedSelector::checkForHide, this, [this] {
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		if (!rect().contains(mapFromGlobal(QCursor::pos()))) {
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			_hideTimer.callOnce(kDelayedHideTimeoutMs);
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		}
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	});
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	connect(_selector, &TabbedSelector::cancelled, this, [this] {
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		hideAnimated();
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	});
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	connect(_selector, &TabbedSelector::slideFinished, this, [this] {
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		InvokeQueued(this, [this] {
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			if (_hideAfterSlide) {
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				startOpacityAnimation(true);
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			}
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		});
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	});
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	if (cPlatform() == dbipMac || cPlatform() == dbipMacOld) {
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		connect(App::wnd()->windowHandle(), SIGNAL(activeChanged()), this, SLOT(onWndActiveChanged()));
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	}
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	setAttribute(Qt::WA_OpaquePaintEvent, false);
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	hideChildren();
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}
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void TabbedPanel::moveBottom(int bottom) {
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	_bottom = bottom;
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	updateContentHeight();
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}
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void TabbedPanel::updateContentHeight() {
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	if (isDestroying()) {
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		return;
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	}
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	auto addedHeight = innerPadding().top() + innerPadding().bottom();
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	auto marginsHeight = _selector->marginTop() + _selector->marginBottom();
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	auto availableHeight = _bottom - marginsHeight;
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	auto wantedContentHeight = qRound(st::emojiPanHeightRatio * availableHeight) - addedHeight;
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	auto contentHeight = marginsHeight + snap(wantedContentHeight, st::emojiPanMinHeight, st::emojiPanMaxHeight);
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	auto resultTop = _bottom - addedHeight - contentHeight;
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	if (contentHeight == _contentHeight) {
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		move(x(), resultTop);
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		return;
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	}
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	auto was = _contentHeight;
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	_contentHeight = contentHeight;
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	resize(QRect(0, 0, innerRect().width(), _contentHeight).marginsAdded(innerPadding()).size());
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	move(x(), resultTop);
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	_selector->resize(innerRect().width(), _contentHeight);
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	update();
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}
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void TabbedPanel::onWndActiveChanged() {
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	if (!App::wnd()->windowHandle()->isActive() && !isHidden() && !preventAutoHide()) {
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		hideAnimated();
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	}
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}
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void TabbedPanel::paintEvent(QPaintEvent *e) {
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	Painter p(this);
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	auto ms = getms();
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	// This call can finish _a_show animation and destroy _showAnimation.
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	auto opacityAnimating = _a_opacity.animating(ms);
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	auto showAnimating = _a_show.animating(ms);
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	if (_showAnimation && !showAnimating) {
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		_showAnimation.reset();
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		if (!opacityAnimating && !isDestroying()) {
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			showChildren();
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			_selector->afterShown();
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		}
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	}
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	if (showAnimating) {
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		Assert(_showAnimation != nullptr);
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		if (auto opacity = _a_opacity.current(_hiding ? 0. : 1.)) {
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			_showAnimation->paintFrame(p, 0, 0, width(), _a_show.current(1.), opacity);
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		}
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	} else if (opacityAnimating) {
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		p.setOpacity(_a_opacity.current(_hiding ? 0. : 1.));
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		p.drawPixmap(0, 0, _cache);
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	} else if (_hiding || isHidden()) {
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		hideFinished();
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	} else {
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		if (!_cache.isNull()) _cache = QPixmap();
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		Ui::Shadow::paint(p, innerRect(), width(), st::emojiPanAnimation.shadow);
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	}
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}
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void TabbedPanel::moveByBottom() {
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	moveToRight(0, y());
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	updateContentHeight();
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}
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void TabbedPanel::enterEventHook(QEvent *e) {
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	Messenger::Instance().registerLeaveSubscription(this);
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	showAnimated();
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}
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bool TabbedPanel::preventAutoHide() const {
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	if (isDestroying()) {
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		return false;
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	}
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	return _selector->preventAutoHide();
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}
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void TabbedPanel::leaveEventHook(QEvent *e) {
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	Messenger::Instance().unregisterLeaveSubscription(this);
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	if (preventAutoHide()) {
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		return;
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	}
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	auto ms = getms();
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	if (_a_show.animating(ms) || _a_opacity.animating(ms)) {
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		hideAnimated();
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	} else {
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		_hideTimer.callOnce(kHideTimeoutMs);
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	}
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	return TWidget::leaveEventHook(e);
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}
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void TabbedPanel::otherEnter() {
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	showAnimated();
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}
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void TabbedPanel::otherLeave() {
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	if (preventAutoHide()) {
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		return;
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	}
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	auto ms = getms();
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	if (_a_opacity.animating(ms)) {
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		hideByTimerOrLeave();
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	} else {
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		_hideTimer.callOnce(0);
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	}
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}
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void TabbedPanel::hideFast() {
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	if (isHidden()) return;
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	_hideTimer.cancel();
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	_hiding = false;
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	_a_opacity.finish();
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	hideFinished();
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}
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void TabbedPanel::opacityAnimationCallback() {
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	update();
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	if (!_a_opacity.animating()) {
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		if (_hiding || isDestroying()) {
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			_hiding = false;
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			hideFinished();
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		} else if (!_a_show.animating()) {
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			showChildren();
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			_selector->afterShown();
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		}
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	}
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}
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void TabbedPanel::hideByTimerOrLeave() {
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	if (isHidden() || preventAutoHide()) return;
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	hideAnimated();
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}
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void TabbedPanel::prepareCache() {
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	if (_a_opacity.animating()) return;
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	auto showAnimation = base::take(_a_show);
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	auto showAnimationData = base::take(_showAnimation);
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	showChildren();
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	_cache = Ui::GrabWidget(this);
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	_showAnimation = base::take(showAnimationData);
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	_a_show = base::take(showAnimation);
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	if (_a_show.animating()) {
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		hideChildren();
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	}
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}
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void TabbedPanel::startOpacityAnimation(bool hiding) {
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	if (_selector && !_selector->isHidden()) {
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		_selector->beforeHiding();
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	}
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	_hiding = false;
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	prepareCache();
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	_hiding = hiding;
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	hideChildren();
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	_a_opacity.start([this] { opacityAnimationCallback(); }, _hiding ? 1. : 0., _hiding ? 0. : 1., st::emojiPanDuration);
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}
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void TabbedPanel::startShowAnimation() {
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	if (!_a_show.animating()) {
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		auto image = grabForAnimation();
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		_showAnimation = std::make_unique<Ui::PanelAnimation>(st::emojiPanAnimation, Ui::PanelAnimation::Origin::BottomRight);
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		auto inner = rect().marginsRemoved(st::emojiPanMargins);
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		_showAnimation->setFinalImage(std::move(image), QRect(inner.topLeft() * cIntRetinaFactor(), inner.size() * cIntRetinaFactor()));
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		auto corners = App::cornersMask(ImageRoundRadius::Small);
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		_showAnimation->setCornerMasks(corners[0], corners[1], corners[2], corners[3]);
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		_showAnimation->start();
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	}
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	hideChildren();
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	_a_show.start([this] { update(); }, 0., 1., st::emojiPanShowDuration);
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}
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QImage TabbedPanel::grabForAnimation() {
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	auto cache = base::take(_cache);
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	auto opacityAnimation = base::take(_a_opacity);
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	auto showAnimationData = base::take(_showAnimation);
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	auto showAnimation = base::take(_a_show);
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	showChildren();
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	Ui::SendPendingMoveResizeEvents(this);
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	auto result = QImage(size() * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
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	result.setDevicePixelRatio(cRetinaFactor());
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	result.fill(Qt::transparent);
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	if (_selector) {
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		_selector->render(&result, _selector->geometry().topLeft());
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	}
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	_a_show = base::take(showAnimation);
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	_showAnimation = base::take(showAnimationData);
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	_a_opacity = base::take(opacityAnimation);
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	_cache = base::take(_cache);
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	return result;
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}
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void TabbedPanel::hideAnimated() {
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	if (isHidden() || _hiding) {
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		return;
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	}
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	_hideTimer.cancel();
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	if (!isDestroying() && _selector->isSliding()) {
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		_hideAfterSlide = true;
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	} else {
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		startOpacityAnimation(true);
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	}
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}
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void TabbedPanel::toggleAnimated() {
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	if (isDestroying()) {
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		return;
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	}
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	if (isHidden() || _hiding || _hideAfterSlide) {
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		showAnimated();
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	} else {
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		hideAnimated();
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	}
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}
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object_ptr<TabbedSelector> TabbedPanel::takeSelector() {
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	if (!isHidden() && !_hiding) {
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		startOpacityAnimation(true);
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	}
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	return std::move(_selector);
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}
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QPointer<TabbedSelector> TabbedPanel::getSelector() const {
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	return _selector.data();
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}
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void TabbedPanel::hideFinished() {
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	hide();
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	_a_show.finish();
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	_showAnimation.reset();
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	_cache = QPixmap();
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	_hiding = false;
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	if (isDestroying()) {
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		deleteLater();
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	} else {
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		_selector->hideFinished();
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	}
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}
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void TabbedPanel::showAnimated() {
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	_hideTimer.cancel();
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	_hideAfterSlide = false;
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	showStarted();
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}
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void TabbedPanel::showStarted() {
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	if (isDestroying()) {
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		return;
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	}
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	if (isHidden()) {
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		_selector->showStarted();
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		moveByBottom();
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		show();
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		startShowAnimation();
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	} else if (_hiding) {
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		startOpacityAnimation(false);
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	}
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}
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bool TabbedPanel::eventFilter(QObject *obj, QEvent *e) {
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	if (isDestroying()) {
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		return false;
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	}
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	if (e->type() == QEvent::Enter) {
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		otherEnter();
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	} else if (e->type() == QEvent::Leave) {
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		otherLeave();
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	}
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	return false;
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}
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void TabbedPanel::showFromSelector() {
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	if (isHidden()) {
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		moveByBottom();
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		startShowAnimation();
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		show();
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	}
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	showChildren();
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	showAnimated();
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}
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style::margins TabbedPanel::innerPadding() const {
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	return st::emojiPanMargins;
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}
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QRect TabbedPanel::innerRect() const {
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	return rect().marginsRemoved(innerPadding());
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}
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QRect TabbedPanel::horizontalRect() const {
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	return innerRect().marginsRemoved(style::margins(0, st::buttonRadius, 0, st::buttonRadius));
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}
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QRect TabbedPanel::verticalRect() const {
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	return innerRect().marginsRemoved(style::margins(st::buttonRadius, 0, st::buttonRadius, 0));
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}
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bool TabbedPanel::overlaps(const QRect &globalRect) const {
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	if (isHidden() || !_cache.isNull()) return false;
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	auto testRect = QRect(mapFromGlobal(globalRect.topLeft()), globalRect.size());
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	auto inner = rect().marginsRemoved(st::emojiPanMargins);
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	return inner.marginsRemoved(QMargins(st::buttonRadius, 0, st::buttonRadius, 0)).contains(testRect)
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		|| inner.marginsRemoved(QMargins(0, st::buttonRadius, 0, st::buttonRadius)).contains(testRect);
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}
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TabbedPanel::~TabbedPanel() = default;
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} // namespace ChatHelpers
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