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diff --git a/src/webenginewidgets/ui/messagebubblewidget.cpp b/src/webenginewidgets/ui/messagebubblewidget.cpp
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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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