77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#include "core/click_handler.h"
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ClickHandlerHost::~ClickHandlerHost() {
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ClickHandler::hostDestroyed(this);
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}
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NeverFreedPointer<ClickHandlerPtr> ClickHandler::_active;
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NeverFreedPointer<ClickHandlerPtr> ClickHandler::_pressed;
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ClickHandlerHost *ClickHandler::_activeHost = nullptr;
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ClickHandlerHost *ClickHandler::_pressedHost = nullptr;
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bool ClickHandler::setActive(const ClickHandlerPtr &p, ClickHandlerHost *host) {
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if ((_active && (*_active == p)) || (!_active && !p)) {
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return false;
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}
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// emit clickHandlerActiveChanged only when there is no
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// other pressed click handler currently, if there is
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// this method will be called when it is unpressed
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if (_active && *_active) {
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auto emitClickHandlerActiveChanged = (!_pressed || !*_pressed || *_pressed == *_active);
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auto wasactive = *_active;
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(*_active).clear();
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if (_activeHost) {
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if (emitClickHandlerActiveChanged) {
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_activeHost->clickHandlerActiveChanged(wasactive, false);
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}
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_activeHost = nullptr;
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}
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}
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if (p) {
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_active.createIfNull();
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*_active = p;
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if ((_activeHost = host)) {
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bool emitClickHandlerActiveChanged = (!_pressed || !*_pressed || *_pressed == *_active);
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if (emitClickHandlerActiveChanged) {
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_activeHost->clickHandlerActiveChanged(*_active, true);
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}
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}
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}
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return true;
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}
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QString ClickHandler::getExpandedLinkText(ExpandLinksMode mode, const QStringRef &textPart) const {
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return QString();
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}
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TextWithEntities ClickHandler::getExpandedLinkTextWithEntities(ExpandLinksMode mode, int entityOffset, const QStringRef &textPart) const {
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return { QString(), EntitiesInText() };
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}
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TextWithEntities ClickHandler::simpleTextWithEntity(const EntityInText &entity) const {
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TextWithEntities result;
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result.entities.push_back(entity);
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return result;
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}
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