Create a RWHV delegate in core

This is adapting the Quick code for shared use with widgets,
and allows us to use it from QWebEnginePage.

Pick-to: 6.4
Fixes: QTBUG-96377
Change-Id: I3f09c1a949eff86d80fbe6c513dc66e3f9f2f611
Reviewed-by: Michal Klocek <michal.klocek@qt.io>

1 files changed, 88 insertions, 0 deletions

diff --git a/src/webenginewidgets/qwebengine_accessible.h b/src/webenginewidgets/qwebengine_accessible.h
new file mode 100644
index 000000000..d0781635d
--- /dev/null
+++ b/src/webenginewidgets/qwebengine_accessible.h
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** 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 The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/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.LGPL3 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-3.0.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 (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWEBENGINE_ACCESSIBLE_H
+#define QWEBENGINE_ACCESSIBLE_H
+
+#include <QAccessibleWidget>
+#include <QPointer>
+
+#if QT_CONFIG(accessibility)
+
+QT_BEGIN_NAMESPACE
+class QWebEngineView;
+
+class QWebEngineViewAccessible : public QAccessibleWidget
+{
+public:
+    QWebEngineViewAccessible(QWebEngineView *o);
+
+    bool isValid() const override;
+    QAccessibleInterface *focusChild() const override;
+    int childCount() const override;
+    QAccessibleInterface *child(int index) const override;
+    int indexOfChild(const QAccessibleInterface *child) const override;
+
+private:
+    QWebEngineView *view() const;
+};
+
+QT_END_NAMESPACE
+
+namespace QtWebEngineCore {
+
+class RenderWidgetHostViewQtDelegateWidgetAccessible : public QAccessibleWidget
+{
+public:
+    RenderWidgetHostViewQtDelegateWidgetAccessible(QWidget *o, QWebEngineView *view);
+
+    bool isValid() const override;
+    QAccessibleInterface *focusChild() const override;
+    int childCount() const override;
+    QAccessibleInterface *child(int index) const override;
+    int indexOfChild(const QAccessibleInterface *child) const override;
+
+private:
+    QWebEngineViewAccessible *viewAccessible() const;
+    QPointer<QWebEngineView> m_view;
+};
+} // namespace QtWebEngineCore
+#endif // QT_CONFIG(accessibility)
+
+#endif // QWEBENGINE_ACCESSIBLE_H