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/****************************************************************************
**
** Copyright (C) 2015 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtWebEngine module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "messagebubblewidget_p.h"
#include "api/qwebengineview.h"
#include <QBitmap>
#include <QHBoxLayout>
#include <QIcon>
#include <QLabel>
#include <QStyle>
namespace QtWebEngineWidgetUI {
Q_GLOBAL_STATIC(MessageBubbleWidget, bubbleInstance)
void MessageBubbleWidget::showBubble(QWebEngineView *view, const QRect &anchor, const QString &mainText, const QString &subText)
{
hideBubble();
if (mainText.isEmpty())
return;
bubbleInstance->createBubble(anchor.size().width(), mainText, subText);
bubbleInstance->moveToAnchor(view, anchor);
}
void MessageBubbleWidget::hideBubble()
{
bubbleInstance->hide();
}
void MessageBubbleWidget::moveBubble(QWebEngineView *view, const QRect &anchor)
{
bubbleInstance->moveToAnchor(view, anchor);
}
MessageBubbleWidget::MessageBubbleWidget()
: QWidget(0, Qt::ToolTip)
, m_mainLabel(new QLabel)
, m_subLabel(new QLabel)
{
QHBoxLayout *hLayout = new QHBoxLayout;
hLayout->setAlignment(Qt::AlignTop);
hLayout->setSizeConstraint(QLayout::SetFixedSize);
hLayout->setMargin(3);
const int iconSize = 18;
QIcon si = style()->standardIcon(QStyle::SP_MessageBoxWarning);
if (!si.isNull()) {
QLabel *iconLabel = new QLabel(this);
iconLabel->setPixmap(si.pixmap(iconSize, iconSize));
iconLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
iconLabel->setMargin(2);
hLayout->addWidget(iconLabel, 0, Qt::AlignTop);
}
QVBoxLayout *vLayout = new QVBoxLayout;
m_mainLabel->installEventFilter(this);
m_mainLabel->setWordWrap(true);
m_mainLabel->setTextFormat(Qt::PlainText);
m_mainLabel->setAlignment(Qt::AlignTop | Qt::AlignLeft);
vLayout->addWidget(m_mainLabel.data());
QFont mainFont = m_mainLabel->font();
mainFont.setPointSize(mainFont.pointSize() + 4);
m_mainLabel->setFont(mainFont);
m_subLabel->installEventFilter(this);
m_subLabel->setWordWrap(true);
m_subLabel->setTextFormat(Qt::PlainText);
m_subLabel->setAlignment(Qt::AlignBottom | Qt::AlignLeft);
vLayout->addWidget(m_subLabel.data());
hLayout->addLayout(vLayout);
setLayout(hLayout);
QPalette pal = palette();
pal.setColor(QPalette::Window, QColor(0xff, 0xff, 0xe1));
pal.setColor(QPalette::WindowText, Qt::black);
setPalette(pal);
}
MessageBubbleWidget::~MessageBubbleWidget()
{
}
void MessageBubbleWidget::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.drawPixmap(rect(), m_pixmap);
}
void MessageBubbleWidget::createBubble(const int maxWidth, const QString &mainText, const QString &subText)
{
m_mainLabel->setText(mainText);
m_mainLabel->setMaximumWidth(maxWidth);
m_subLabel->setText(subText);
m_subLabel->setMaximumWidth(maxWidth);
m_subLabel->setVisible(!subText.isEmpty());
int border = 1;
int arrowHeight = 18;
bool roundedCorners = true;
#if defined(QT_NO_XSHAPE) && defined(Q_WS_X11)
// XShape is required for setting the mask, so we just
// draw an ugly square when its not available
arrowHeight = 0;
roundedCorners = false;
#endif
setContentsMargins(border + 3, border + arrowHeight + 2, border + 3, border + 2);
show(); // The widget should be visible for updateGeometry()
updateGeometry();
m_pixmap = QPixmap(sizeHint());
QPainterPath path = drawBoxPath(QPoint(0, arrowHeight), border, roundedCorners);
// Draw border and set background
QPainter painter(&m_pixmap);
painter.setPen(QPen(palette().color(QPalette::Window).darker(160), border));
painter.setBrush(palette().color(QPalette::Window));
painter.drawPath(path);
}
void MessageBubbleWidget::moveToAnchor(QWebEngineView *view, const QRect &anchor)
{
QPoint topLeft = view->mapToGlobal(anchor.topLeft());
move(topLeft.x(), topLeft.y() + anchor.height());
}
QPainterPath MessageBubbleWidget::drawBoxPath(const QPoint &pos, int border, bool roundedCorners)
{
const int arrowHeight = pos.y();
const int arrowOffset = 18;
const int arrowWidth = 18;
const int cornerRadius = roundedCorners ? 7 : 0;
const int messageBoxLeft = pos.x();
const int messageBoxTop = arrowHeight;
const int messageBoxRight = m_pixmap.width() - 1;
const int messageBoxBottom = m_pixmap.height() - 1;
QPainterPath path;
path.moveTo(messageBoxLeft + cornerRadius, messageBoxTop);
if (arrowHeight) {
path.lineTo(messageBoxLeft + arrowOffset, messageBoxTop);
path.lineTo(messageBoxLeft + arrowOffset, messageBoxTop - arrowHeight);
path.lineTo(messageBoxLeft + arrowOffset + arrowWidth, messageBoxTop);
}
if (roundedCorners) {
path.lineTo(messageBoxRight - cornerRadius, messageBoxTop);
path.quadTo(messageBoxRight, messageBoxTop, messageBoxRight, messageBoxTop + cornerRadius);
path.lineTo(messageBoxRight, messageBoxBottom - cornerRadius);
path.quadTo(messageBoxRight, messageBoxBottom, messageBoxRight - cornerRadius, messageBoxBottom);
path.lineTo(messageBoxLeft + cornerRadius, messageBoxBottom);
path.quadTo(messageBoxLeft, messageBoxBottom, messageBoxLeft, messageBoxBottom - cornerRadius);
path.lineTo(messageBoxLeft, messageBoxTop + cornerRadius);
path.quadTo(messageBoxLeft, messageBoxTop, messageBoxLeft + cornerRadius, messageBoxTop);
} else {
path.lineTo(messageBoxRight, messageBoxTop);
path.lineTo(messageBoxRight, messageBoxBottom);
path.lineTo(messageBoxLeft, messageBoxBottom);
path.moveTo(messageBoxLeft, messageBoxTop);
}
// Set mask
if (arrowHeight || roundedCorners) {
QBitmap bitmap = QBitmap(sizeHint());
bitmap.fill(Qt::color0);
QPainter painter(&bitmap);
painter.setPen(QPen(Qt::color1, border));
painter.setBrush(QBrush(Qt::color1));
painter.drawPath(path);
setMask(bitmap);
}
return path;
}
} // namespace QtWebEngineWidgetUI
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