tdesktop/Telegram/SourceFiles/ui/toast/toast_manager.cpp

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/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#include "stdafx.h"
#include "ui/toast/toast_manager.h"
#include "application.h"
#include "ui/toast/toast_widget.h"
namespace Ui {
namespace Toast {
namespace internal {
namespace {
NeverFreedPointer<QMap<QObject*, Manager*>> _managers;
} // namespace
Manager::Manager(QWidget *parent) : QObject(parent) {
connect(&_hideTimer, SIGNAL(timeout()), this, SLOT(onHideTimeout()));
connect(parent, SIGNAL(resized()), this, SLOT(onParentResized()));
}
Manager *Manager::instance(QWidget *parent) {
_managers.makeIfNull();
auto i = _managers->constFind(parent);
if (i == _managers->cend()) {
i = _managers->insert(parent, new Manager(parent));
}
return i.value();
}
void Manager::addToast(std_::unique_ptr<Instance> &&toast) {
_toasts.push_back(toast.release());
Instance *t = _toasts.back();
Widget *widget = t->_widget.get();
_toastByWidget.insert(widget, t);
connect(widget, SIGNAL(destroyed(QObject*)), this, SLOT(onToastWidgetDestroyed(QObject*)));
connect(widget->parentWidget(), SIGNAL(resized(QSize)), this, SLOT(onToastWidgetParentResized()), Qt::UniqueConnection);
uint64 oldHideNearestMs = _toastByHideTime.isEmpty() ? 0 : _toastByHideTime.firstKey();
_toastByHideTime.insert(t->_hideAtMs, t);
if (!oldHideNearestMs || _toastByHideTime.firstKey() < oldHideNearestMs) {
startNextHideTimer();
}
}
void Manager::onHideTimeout() {
uint64 now = getms(true);
for (auto i = _toastByHideTime.begin(); i != _toastByHideTime.cend();) {
if (i.key() <= now) {
Instance *toast = i.value();
i = _toastByHideTime.erase(i);
toast->fadeOut();
} else {
break;
}
}
startNextHideTimer();
}
void Manager::onToastWidgetDestroyed(QObject *widget) {
auto i = _toastByWidget.find(static_cast<Widget*>(widget));
if (i != _toastByWidget.cend()) {
Instance *toast = i.value();
_toastByWidget.erase(i);
toast->_widget.release();
int index = _toasts.indexOf(toast);
if (index >= 0) {
_toasts.removeAt(index);
delete toast;
}
}
}
void Manager::onToastWidgetParentResized() {
QObject *resizedWidget = QObject::sender();
if (!resizedWidget) return;
for (auto i = _toastByWidget.cbegin(), e = _toastByWidget.cend(); i != e; ++i) {
if (i.key()->parentWidget() == resizedWidget) {
i.key()->onParentResized();
}
}
}
void Manager::startNextHideTimer() {
if (_toastByHideTime.isEmpty()) return;
uint64 ms = getms(true);
if (ms >= _toastByHideTime.firstKey()) {
QMetaObject::invokeMethod(this, SLOT("onHideTimeout"), Qt::QueuedConnection);
} else {
_hideTimer.start(_toastByHideTime.firstKey() - ms);
}
}
Manager::~Manager() {
_managers->remove(parent());
}
} // namespace internal
} // namespace Toast
} // namespace Ui