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/****************************************************************************
**
** 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 "ui/base/resource/resource_bundle.h"
#include "ui/base/resource/data_pack.h"
#include <QFile>
#include <QStringList>
namespace ui {
// ********************* data_pack.cc *********************
// This is duplicated code originating from data_pack.cc.
// It should instead be moved to a header file and be included
// in both places.
static const uint32 kFileFormatVersion = 4;
static const size_t kHeaderLength = 2 * sizeof(uint32) + sizeof(uint8);
#pragma pack(push,2)
struct DataPackEntry {
uint16 resource_id;
uint32 file_offset;
static int CompareById(const void* void_key, const void* void_entry) {
uint16 key = *reinterpret_cast<const uint16*>(void_key);
const DataPackEntry* entry =
reinterpret_cast<const DataPackEntry*>(void_entry);
if (key < entry->resource_id) {
return -1;
} else if (key > entry->resource_id) {
return 1;
} else {
return 0;
}
}
};
#pragma pack(pop)
// ******************* data_pack.cc end *******************
class UI_EXPORT DataPackQt : public DataPack {
public:
DataPackQt(ui::ScaleFactor scale_factor)
: DataPack(scale_factor)
, m_data(NULL)
, m_resourceCount(0) { }
virtual ~DataPackQt() { }
bool LoadFromByteArray(const QByteArray& data)
{
m_data = data;
if (kHeaderLength > static_cast<size_t>(m_data.size()))
return false;
const uint32* ptr = reinterpret_cast<const uint32*>(m_data.data());
uint32 version = ptr[0];
if (version != kFileFormatVersion) {
LOG(ERROR) << "Bad data pack version: got " << version << ", expected " << kFileFormatVersion;
return false;
}
m_resourceCount = ptr[1];
return true;
}
virtual bool HasResource(uint16 resource_id) const OVERRIDE
{
return !!bsearch(&resource_id, m_data.data() + kHeaderLength, m_resourceCount, sizeof(DataPackEntry), DataPackEntry::CompareById);
}
virtual bool GetStringPiece(uint16 resource_id, base::StringPiece* data) const OVERRIDE
{
#if defined(__BYTE_ORDER) // Linux check
COMPILE_ASSERT(__BYTE_ORDER == __LITTLE_ENDIAN, datapack_assumes_little_endian);
#elif defined(__BIG_ENDIAN__) // Mac check
#error DataPack assumes little endian
#endif
const DataPackEntry* target = reinterpret_cast<const DataPackEntry*>(bsearch(&resource_id, m_data.data() + kHeaderLength, m_resourceCount, sizeof(DataPackEntry), DataPackEntry::CompareById));
if (!target)
return false;
const DataPackEntry* next_entry = target + 1;
size_t length = next_entry->file_offset - target->file_offset;
data->set(m_data.data() + target->file_offset, length);
return true;
}
private:
QByteArray m_data;
size_t m_resourceCount;
DISALLOW_COPY_AND_ASSIGN(DataPackQt);
};
void ResourceBundle::LoadCommonResources()
{
QStringList resources;
resources << ":/data/resources.pak" << ":/data/devtools.pak";
Q_FOREACH (const QString& pak, resources) {
QFile pak_file(pak);
if (!pak_file.open(QIODevice::ReadOnly)) {
qWarning("Resource file %s not loaded", qPrintable(pak));
continue;
}
scoped_ptr<DataPackQt> data_pack(new DataPackQt(SCALE_FACTOR_100P));
if (data_pack->LoadFromByteArray(pak_file.readAll()))
AddDataPack(data_pack.release());
}
}
// As GetLocaleFilePath is excluded for Mac in resource_bundle.cc,
// we have to add a replacement for it using the inverted logic.
#if defined(OS_MACOSX)
base::FilePath ResourceBundle::GetLocaleFilePath(const std::string& /*app_locale*/, bool /*test_file_exists*/)
{
return base::FilePath();
}
#endif
gfx::Image& ResourceBundle::GetNativeImageNamed(int resource_id, ImageRTL rtl)
{
LOG(WARNING) << "Unable to load image with id " << resource_id;
NOTREACHED(); // Want to assert in debug mode.
return GetEmptyImage();
}
} // namespace ui
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