Refactor QWebView code.

In an attempt to make the code more future proof, this patch tries to
improve the abstraction between the native WebViews/View controllers
and the public APIs. This should make it easier to add new platforms
and alternative public interfaces, e.g., a Window/Widget API. It should
also make it easier to implement a plugin system if needed.

In addition the following changes were done:
- reload() implementation in the android controller.
- reload() calls the native reload function on both Android and iOS.
- loadProgress() calls the native getProgress() directly on Android.
- isLoading() calls loading() on the UIWebView (iOS)
- runJavaScript() will now only pass the script and an id to the platform
  implementation to avoid creating a strong coupling to QJSValue.

Change-Id: I3cbd81c7fd8d93bacf9134be32ad061d1f9e1183
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>

1 files changed, 81 insertions, 0 deletions

diff --git a/src/webview/qwebviewinterface_p.h b/src/webview/qwebviewinterface_p.h
new file mode 100644
index 0000000..86d370c
--- /dev/null
+++ b/src/webview/qwebviewinterface_p.h
@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtWebView 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWEBVIEWINTERFACE_H
+#define QWEBVIEWINTERFACE_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtWebView/qwebview_global.h>
+
+#include <QtCore/qobject.h>
+#include <QtCore/qurl.h>
+#include <QtGui/qimage.h>
+
+
+QT_BEGIN_NAMESPACE
+
+class QJSValue;
+
+class QWebViewInterface
+{
+public:
+    virtual ~QWebViewInterface() {}
+    virtual QUrl url() const = 0;
+    virtual void setUrl(const QUrl &url) = 0;
+    virtual bool canGoBack() const = 0;
+    virtual bool canGoForward() const = 0;
+    virtual QString title() const = 0;
+    virtual int loadProgress() const = 0;
+    virtual bool isLoading() const = 0;
+
+    // Q_SLOTS
+    virtual void goBack() = 0;
+    virtual void goForward() = 0;
+    virtual void stop() = 0;
+    virtual void reload() = 0;
+};
+
+#endif // QWEBVIEWINTERFACE_H