121 lines
		
	
	
	
		
			3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			121 lines
		
	
	
	
		
			3 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 "ui/rp_widget.h"
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| 
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| namespace Ui {
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| 
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| rpl::producer<QRect> RpWidgetMethods::geometryValue() const {
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| 	auto &stream = eventStreams().geometry;
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| 	return stream.events_starting_with_copy(callGetGeometry());
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| }
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| 
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| rpl::producer<QSize> RpWidgetMethods::sizeValue() const {
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| 	return geometryValue()
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| 		| rpl::map([](QRect &&value) { return value.size(); })
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| 		| rpl::distinct_until_changed();
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| }
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| 
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| rpl::producer<int> RpWidgetMethods::heightValue() const {
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| 	return geometryValue()
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| 		| rpl::map([](QRect &&value) { return value.height(); })
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| 		| rpl::distinct_until_changed();
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| }
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| 
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| rpl::producer<int> RpWidgetMethods::widthValue() const {
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| 	return geometryValue()
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| 		| rpl::map([](QRect &&value) { return value.width(); })
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| 		| rpl::distinct_until_changed();
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| }
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| 
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| rpl::producer<QPoint> RpWidgetMethods::positionValue() const {
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| 	return geometryValue()
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| 		| rpl::map([](QRect &&value) { return value.topLeft(); })
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| 		| rpl::distinct_until_changed();
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| }
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| 
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| rpl::producer<int> RpWidgetMethods::leftValue() const {
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| 	return geometryValue()
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| 		| rpl::map([](QRect &&value) { return value.left(); })
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| 		| rpl::distinct_until_changed();
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| }
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| 
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| rpl::producer<int> RpWidgetMethods::topValue() const {
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| 	return geometryValue()
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| 		| rpl::map([](QRect &&value) { return value.top(); })
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| 		| rpl::distinct_until_changed();
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| }
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| 
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| rpl::producer<int> RpWidgetMethods::desiredHeightValue() const {
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| 	return heightValue();
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| }
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| 
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| rpl::producer<bool> RpWidgetMethods::shownValue() const {
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| 	auto &stream = eventStreams().shown;
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| 	return stream.events_starting_with(!callIsHidden());
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| }
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| 
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| rpl::producer<QRect> RpWidgetMethods::paintRequest() const {
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| 	return eventStreams().paint.events();
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| }
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| 
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| rpl::producer<> RpWidgetMethods::alive() const {
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| 	return eventStreams().alive.events();
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| }
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| 
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| rpl::lifetime &RpWidgetMethods::lifetime() {
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| 	return _lifetime;
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| }
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| 
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| bool RpWidgetMethods::handleEvent(QEvent *event) {
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| 	switch (event->type()) {
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| 	case QEvent::Move:
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| 	case QEvent::Resize:
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| 		if (auto streams = _eventStreams.get()) {
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| 			auto that = callCreateWeak();
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| 			streams->geometry.fire_copy(callGetGeometry());
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| 			if (!that) {
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| 				return true;
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| 			}
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| 		}
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| 		break;
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| 
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| 	case QEvent::Paint:
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| 		if (auto streams = _eventStreams.get()) {
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| 			auto that = callCreateWeak();
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| 			streams->paint.fire_copy(
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| 				static_cast<QPaintEvent*>(event)->rect());
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| 			if (!that) {
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| 				return true;
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| 			}
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| 		}
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| 		break;
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| 	}
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| 
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| 	return eventHook(event);
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| }
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| 
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| RpWidgetMethods::Initer::Initer(QWidget *parent) {
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| 	parent->setGeometry(0, 0, 0, 0);
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| }
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| 
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| void RpWidgetMethods::visibilityChangedHook(bool wasVisible, bool nowVisible) {
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| 	if (nowVisible != wasVisible) {
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| 		if (auto streams = _eventStreams.get()) {
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| 			streams->shown.fire_copy(nowVisible);
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| 		}
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| 	}
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| }
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| 
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| auto RpWidgetMethods::eventStreams() const -> EventStreams& {
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| 	if (!_eventStreams) {
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| 		_eventStreams = std::make_unique<EventStreams>();
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| 	}
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| 	return *_eventStreams;
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| }
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| 
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| } // namespace Ui
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