104 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			104 lines
		
	
	
	
		
			2.6 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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| 
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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 "window/window_history_hider.h"
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| 
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| #include "lang/lang_keys.h"
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| #include "ui/widgets/buttons.h"
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| #include "ui/widgets/shadow.h"
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| #include "ui/cached_round_corners.h"
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| #include "mainwidget.h"
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| #include "styles/style_layers.h"
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| #include "styles/style_chat.h"
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| 
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| namespace Window {
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| 
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| HistoryHider::HistoryHider(QWidget *parent, const QString &text)
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| : RpWidget(parent)
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| , _text(text) {
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| 	Lang::Updated(
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| 	) | rpl::start_with_next([=] {
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| 		refreshLang();
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| 	}, lifetime());
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| 
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| 	_chooseWidth = st::historyForwardChooseFont->width(_text);
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| 
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| 	resizeEvent(0);
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| 	_a_opacity.start([=] { update(); }, 0., 1., st::boxDuration);
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| }
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| 
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| HistoryHider::~HistoryHider() = default;
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| 
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| void HistoryHider::refreshLang() {
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| 	InvokeQueued(this, [this] { updateControlsGeometry(); });
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| }
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| 
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| void HistoryHider::paintEvent(QPaintEvent *e) {
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| 	auto p = QPainter(this);
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| 	auto opacity = _a_opacity.value(_hiding ? 0. : 1.);
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| 	if (opacity == 0.) {
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| 		if (_hiding) {
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| 			_hidden.fire({});
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| 		}
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| 		return;
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| 	}
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| 
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| 	p.setOpacity(opacity);
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| 	p.fillRect(rect(), st::layerBg);
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| 	p.setFont(st::historyForwardChooseFont);
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| 	auto w = st::historyForwardChooseMargins.left() + _chooseWidth + st::historyForwardChooseMargins.right();
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| 	auto h = st::historyForwardChooseMargins.top() + st::historyForwardChooseFont->height + st::historyForwardChooseMargins.bottom();
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| 	Ui::FillRoundRect(p, (width() - w) / 2, (height() - h) / 2, w, h, st::historyForwardChooseBg, Ui::ForwardCorners);
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| 
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| 	p.setPen(st::historyForwardChooseFg);
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| 	p.drawText(_box, _text, QTextOption(style::al_center));
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| }
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| 
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| void HistoryHider::keyPressEvent(QKeyEvent *e) {
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| 	if (e->key() == Qt::Key_Escape) {
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| 		startHide();
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| 	}
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| }
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| 
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| void HistoryHider::mousePressEvent(QMouseEvent *e) {
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| 	if (e->button() == Qt::LeftButton) {
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| 		if (!_box.contains(e->pos())) {
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| 			startHide();
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| 		}
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| 	}
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| }
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| 
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| void HistoryHider::startHide() {
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| 	if (_hiding) return;
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| 
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| 	_hiding = true;
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| 	_a_opacity.start([=] { animationCallback(); }, 1., 0., st::boxDuration);
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| }
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| 
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| void HistoryHider::animationCallback() {
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| 	update();
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| 	if (!_a_opacity.animating() && _hiding) {
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| 		crl::on_main(this, [=] { _hidden.fire({}); });
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| 	}
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| }
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| 
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| rpl::producer<> HistoryHider::hidden() const {
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| 	return _hidden.events();
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| }
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| 
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| void HistoryHider::resizeEvent(QResizeEvent *e) {
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| 	updateControlsGeometry();
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| }
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| 
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| void HistoryHider::updateControlsGeometry() {
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| 	auto w = st::boxWidth;
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| 	auto h = st::boxPadding.top() + st::boxPadding.bottom();
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| 	h += st::historyForwardChooseFont->height;
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| 	_box = QRect((width() - w) / 2, (height() - h) / 2, w, h);
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| }
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| 
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| } // namespace Window
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