Revert part of the RenderWidgetHostViewQtDelegate refactoring

This reverts parts of commit 9c198939be1ef064d1a2430a4b9991f2fe16f359.

This does keeps the popup fixes and removes support for
QWebEnginePage::setViewportSize and QWebEnginePage::render until
we can evaluate the needs vs the cost of such feature.

Change-Id: I1b55b751d463717b1462393ea8cd353422f8fdbb
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

1 files changed, 194 insertions, 0 deletions

diff --git a/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.cpp b/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.cpp
new file mode 100644
index 000000000..71d6e235e
--- /dev/null
+++ b/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.cpp
@@ -0,0 +1,194 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 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 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 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 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "render_widget_host_view_qt_delegate_widget.h"
+
+#include "qwebengineview.h"
+#include "qwebenginepage_p.h"
+#include <QtGlobal>
+#include <QLayout>
+#include <QResizeEvent>
+#include <QPainter>
+#include <QPaintEvent>
+#include <QWindow>
+#include <QtWidgets/QApplication>
+
+RenderWidgetHostViewQtDelegateWidget::RenderWidgetHostViewQtDelegateWidget(RenderWidgetHostViewQtDelegateClient *client, QWidget *parent)
+    : QWidget(parent)
+    , m_client(client)
+    , m_isPopup(false)
+{
+    setFocusPolicy(Qt::ClickFocus);
+    setMouseTracking(true);
+    setAttribute(Qt::WA_AcceptTouchEvents);
+    setAttribute(Qt::WA_OpaquePaintEvent);
+    setAttribute(Qt::WA_AlwaysShowToolTips);
+}
+
+void RenderWidgetHostViewQtDelegateWidget::initAsChild(WebContentsAdapterClient* container)
+{
+    QWebEnginePagePrivate *pagePrivate = static_cast<QWebEnginePagePrivate *>(container);
+    if (pagePrivate->view) {
+        pagePrivate->view->layout()->addWidget(this);
+        QWidget::show();
+    } else
+        setParent(0);
+}
+
+void RenderWidgetHostViewQtDelegateWidget::initAsPopup(const QRect& screenRect)
+{
+    m_isPopup = true;
+    // The keyboard events are supposed to go to the parent RenderHostView
+    // so the WebUI popups should never have focus. Besides, if the parent view
+    // loses focus, WebKit will cause its associated popups (including this one)
+    // to be destroyed.
+    setAttribute(Qt::WA_ShowWithoutActivating);
+    setFocusPolicy(Qt::NoFocus);
+    setWindowFlags(Qt::ToolTip | Qt::FramelessWindowHint | Qt::WindowDoesNotAcceptFocus);
+
+    setGeometry(screenRect);
+    show();
+}
+
+QRectF RenderWidgetHostViewQtDelegateWidget::screenRect() const
+{
+    return QRectF(x(), y(), width(), height());
+}
+
+void RenderWidgetHostViewQtDelegateWidget::setKeyboardFocus()
+{
+    setFocus();
+}
+
+bool RenderWidgetHostViewQtDelegateWidget::hasKeyboardFocus()
+{
+    return hasFocus();
+}
+
+void RenderWidgetHostViewQtDelegateWidget::show()
+{
+    // Check if we're attached to a QWebEngineView, we don't
+    // want to show anything else than popups as top-level.
+    if (parent() || m_isPopup)
+        QWidget::show();
+}
+
+void RenderWidgetHostViewQtDelegateWidget::hide()
+{
+    QWidget::hide();
+}
+
+bool RenderWidgetHostViewQtDelegateWidget::isVisible() const
+{
+    return QWidget::isVisible();
+}
+
+QWindow* RenderWidgetHostViewQtDelegateWidget::window() const
+{
+    const QWidget* root = QWidget::window();
+    return root ? root->windowHandle() : 0;
+}
+
+void RenderWidgetHostViewQtDelegateWidget::update(const QRect& rect)
+{
+    QWidget::update(rect);
+}
+
+void RenderWidgetHostViewQtDelegateWidget::updateCursor(const QCursor &cursor)
+{
+    QWidget::setCursor(cursor);
+}
+
+void RenderWidgetHostViewQtDelegateWidget::resize(int width, int height)
+{
+    QWidget::resize(width, height);
+}
+
+void RenderWidgetHostViewQtDelegateWidget::move(const QPoint &screenPos)
+{
+    Q_ASSERT(m_isPopup);
+    QOpenGLWidget::move(screenPos);
+}
+
+void RenderWidgetHostViewQtDelegateWidget::inputMethodStateChanged(bool editorVisible)
+{
+    if (qApp->inputMethod()->isVisible() == editorVisible)
+        return;
+
+    QWidget::setAttribute(Qt::WA_InputMethodEnabled, editorVisible);
+    qApp->inputMethod()->update(Qt::ImQueryInput | Qt::ImEnabled | Qt::ImHints);
+    qApp->inputMethod()->setVisible(editorVisible);
+}
+
+void RenderWidgetHostViewQtDelegateWidget::setTooltip(const QString &tooltip)
+{
+    setToolTip(tooltip);
+}
+
+QVariant RenderWidgetHostViewQtDelegateWidget::inputMethodQuery(Qt::InputMethodQuery query) const
+{
+    return m_client->inputMethodQuery(query);
+}
+
+bool RenderWidgetHostViewQtDelegateWidget::supportsHardwareAcceleration() const
+{
+    return false;
+}
+
+void RenderWidgetHostViewQtDelegateWidget::paintEvent(QPaintEvent * event)
+{
+    QPainter painter(this);
+    m_client->fetchBackingStore();
+    m_client->paint(&painter, event->rect());
+}
+
+void RenderWidgetHostViewQtDelegateWidget::resizeEvent(QResizeEvent *resizeEvent)
+{
+    Q_UNUSED(resizeEvent);
+    m_client->notifyResize();
+}
+
+bool RenderWidgetHostViewQtDelegateWidget::event(QEvent *event)
+{
+    if (!m_client->forwardEvent(event))
+        return QWidget::event(event);
+    return true;
+}