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/*
* Copyright (C) 2018 KeePassXC Team <team@keepassxc.org>
*
* This program 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 2 or (at your option)
* version 3 of the License.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "PopupHelpWidget.h"
#include <QEvent>
#include "gui/MainWindow.h"
PopupHelpWidget::PopupHelpWidget(QWidget* parent)
: QFrame(parent)
, m_appWindow(getMainWindow())
, m_offset({0, 0})
, m_corner(Qt::BottomLeftCorner)
{
Q_ASSERT(parent);
setWindowFlags(Qt::FramelessWindowHint | Qt::Tool);
hide();
m_appWindow->installEventFilter(this);
parentWidget()->installEventFilter(this);
}
PopupHelpWidget::~PopupHelpWidget()
{
m_appWindow->removeEventFilter(this);
parentWidget()->removeEventFilter(this);
}
void PopupHelpWidget::setOffset(const QPoint& offset)
{
m_offset = offset;
if (isVisible()) {
alignWithParent();
}
}
void PopupHelpWidget::setPosition(Qt::Corner corner)
{
m_corner = corner;
if (isVisible()) {
alignWithParent();
}
}
bool PopupHelpWidget::eventFilter(QObject* obj, QEvent* event)
{
if (isVisible()) {
if (obj == parentWidget() && event->type() == QEvent::FocusOut && qApp->focusWindow() != windowHandle()) {
hide();
} else if (obj == m_appWindow && (event->type() == QEvent::Move || event->type() == QEvent::Resize)) {
alignWithParent();
}
}
return QFrame::eventFilter(obj, event);
}
void PopupHelpWidget::showEvent(QShowEvent* event)
{
alignWithParent();
QFrame::showEvent(event);
}
void PopupHelpWidget::alignWithParent()
{
QPoint pos = m_offset;
switch (m_corner) {
case Qt::TopLeftCorner:
pos += QPoint(0, -height());
break;
case Qt::TopRightCorner:
pos += QPoint(parentWidget()->width(), -height());
break;
case Qt::BottomRightCorner:
pos += QPoint(parentWidget()->width(), parentWidget()->height());
break;
case Qt::BottomLeftCorner:
default:
pos += QPoint(0, parentWidget()->height());
break;
}
move(parentWidget()->mapToGlobal(pos));
}
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