Add qrc protocol handler.

Support qrc resources in html. For example:
  <script type="text/javascript" src="qrc:///xx.js"></script>
  <image src="qrc:///xx.png"></image>

Change-Id: I490efb7cc300bf894659e79948b65729a12ad73d
Reviewed-by: Milian Wolff <milian.wolff@kdab.com>
Reviewed-by: Pierre Rossi <pierre.rossi@gmail.com>

1 files changed, 132 insertions, 0 deletions

diff --git a/src/core/url_request_qrc_job_qt.cpp b/src/core/url_request_qrc_job_qt.cpp
new file mode 100644
index 000000000..ccdb4f9b6
--- /dev/null
+++ b/src/core/url_request_qrc_job_qt.cpp
@@ -0,0 +1,132 @@
+/****************************************************************************
+**
+** 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 "url_request_qrc_job_qt.h"
+
+#include "net/base/net_errors.h"
+#include "net/base/io_buffer.h"
+
+#include <QUrl>
+#include <QFileInfo>
+#include <QMimeDatabase>
+#include <QMimeType>
+
+using namespace net;
+
+URLRequestQrcJobQt::URLRequestQrcJobQt(URLRequest *request, NetworkDelegate *networkDelegate)
+    : URLRequestJob(request, networkDelegate)
+    , m_remainingBytes(0)
+    , m_weakFactory(this)
+{
+}
+
+URLRequestQrcJobQt::~URLRequestQrcJobQt()
+{
+    if (m_file.isOpen())
+        m_file.close();
+}
+
+void URLRequestQrcJobQt::Start()
+{
+    base::MessageLoop::current()->PostTask(FROM_HERE, base::Bind(&URLRequestQrcJobQt::startGetHead, m_weakFactory.GetWeakPtr()));
+}
+
+void URLRequestQrcJobQt::Kill()
+{
+    if (m_file.isOpen())
+        m_file.close();
+    m_weakFactory.InvalidateWeakPtrs();
+
+    URLRequestJob::Kill();
+}
+
+bool URLRequestQrcJobQt::GetMimeType(std::string *mimeType) const
+{
+    DCHECK(request_);
+    if (m_mimeType.size() > 0) {
+        *mimeType = m_mimeType;
+        return true;
+    }
+    return false;
+}
+
+bool URLRequestQrcJobQt::ReadRawData(IOBuffer *buf, int bufSize, int *bytesRead)
+{
+    DCHECK(bytesRead);
+    DCHECK_GE(m_remainingBytes, 0);
+    // File has been read finished.
+    if (!m_remainingBytes || !bufSize) {
+        *bytesRead = 0;
+        return true;
+    }
+    if (m_remainingBytes < bufSize)
+        bufSize = static_cast<int>(m_remainingBytes);
+    qint64 rv = m_file.read(buf->data(), bufSize);
+    if (rv >= 0) {
+        *bytesRead = static_cast<int>(rv);
+        m_remainingBytes -= rv;
+        DCHECK_GE(m_remainingBytes, 0);
+        return true;
+    } else {
+        NotifyDone(URLRequestStatus(URLRequestStatus::FAILED, ERR_FAILED));
+    }
+    return false;
+}
+
+void URLRequestQrcJobQt::startGetHead()
+{
+    // Get qrc file path.
+    QString qrcFilePath = ':' + QString::fromStdString(request_->url().path());
+    m_file.setFileName(qrcFilePath);
+    QFileInfo qrcFileInfo(m_file);
+    // Get qrc file mime type.
+    QMimeDatabase mimeDatabase;
+    QMimeType mimeType = mimeDatabase.mimeTypeForFile(qrcFileInfo);
+    m_mimeType = mimeType.name().toStdString();
+    // Open file
+    if (m_file.open(QIODevice::ReadOnly)) {
+        m_remainingBytes = m_file.size();
+        // Notify that the headers are complete
+        NotifyHeadersComplete();
+    } else {
+        NotifyStartError(URLRequestStatus(URLRequestStatus::FAILED, ERR_INVALID_URL));
+    }
+}