Source/WebKit/chromium/src/AsyncFileSystemChromium.cpp

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
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 * in the documentation and/or other materials provided with the
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "config.h"
#include "AsyncFileSystemChromium.h"

#if ENABLE(FILE_SYSTEM)

#include "AsyncFileSystemCallbacks.h"
#include "AsyncFileWriterChromium.h"
#include "WebFileInfo.h"
#include "WebFileSystem.h"
#include "WebFileSystemCallbacksImpl.h"
#include "WebFileWriter.h"
#include "WebKit.h"
#include "WebKitClient.h"

#include <wtf/text/CString.h>

namespace WebCore {

bool AsyncFileSystem::isAvailable()
{
    return true;
}

AsyncFileSystemChromium::AsyncFileSystemChromium(AsyncFileSystem::Type type, const String& rootPath)
    : AsyncFileSystem(type, rootPath)
    , m_webFileSystem(WebKit::webKitClient()->fileSystem())
{
    ASSERT(m_webFileSystem);
}

AsyncFileSystemChromium::~AsyncFileSystemChromium()
{
}

void AsyncFileSystemChromium::move(const String& sourcePath, const String& destinationPath, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
{
    m_webFileSystem->move(sourcePath, destinationPath, new WebKit::WebFileSystemCallbacksImpl(callbacks));
}

void AsyncFileSystemChromium::copy(const String& sourcePath, const String& destinationPath, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
{
    m_webFileSystem->copy(sourcePath, destinationPath, new WebKit::WebFileSystemCallbacksImpl(callbacks));
}

void AsyncFileSystemChromium::remove(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
{
    m_webFileSystem->remove(path, new WebKit::WebFileSystemCallbacksImpl(callbacks));
}

void AsyncFileSystemChromium::removeRecursively(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
{
    m_webFileSystem->removeRecursively(path, new WebKit::WebFileSystemCallbacksImpl(callbacks));
}

void AsyncFileSystemChromium::readMetadata(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
{
    m_webFileSystem->readMetadata(path, new WebKit::WebFileSystemCallbacksImpl(callbacks));
}

void AsyncFileSystemChromium::createFile(const String& path, bool exclusive, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
{
    m_webFileSystem->createFile(path, exclusive, new WebKit::WebFileSystemCallbacksImpl(callbacks));
}

void AsyncFileSystemChromium::createDirectory(const String& path, bool exclusive, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
{
    m_webFileSystem->createDirectory(path, exclusive, new WebKit::WebFileSystemCallbacksImpl(callbacks));
}

void AsyncFileSystemChromium::fileExists(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
{
    m_webFileSystem->fileExists(path, new WebKit::WebFileSystemCallbacksImpl(callbacks));
}

void AsyncFileSystemChromium::directoryExists(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
{
    m_webFileSystem->directoryExists(path, new WebKit::WebFileSystemCallbacksImpl(callbacks));
}

void AsyncFileSystemChromium::readDirectory(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
{
    m_webFileSystem->readDirectory(path, new WebKit::WebFileSystemCallbacksImpl(callbacks));
}

class FileWriterHelperCallbacks : public WebKit::WebFileSystemCallbacks {
public:
    FileWriterHelperCallbacks(AsyncFileWriterClient* client, const String& path, WebKit::WebFileSystem* webFileSystem, PassOwnPtr<WebCore::AsyncFileSystemCallbacks> callbacks)
        : m_client(client)
        , m_path(path)
        , m_webFileSystem(webFileSystem)
        , m_callbacks(callbacks)
    {
    }

    virtual void didSucceed()
    {
        ASSERT_NOT_REACHED();
        delete this;
    }
    virtual void didReadMetadata(const WebKit::WebFileInfo& info)
    {
        ASSERT(m_callbacks);
        if (info.type != WebKit::WebFileInfo::TypeFile || info.length < 0)
            m_callbacks->didFail(WebKit::WebFileErrorInvalidState);
        else {
            OwnPtr<AsyncFileWriterChromium> asyncFileWriterChromium = adoptPtr(new AsyncFileWriterChromium(m_client));
            OwnPtr<WebKit::WebFileWriter> webFileWriter = adoptPtr(m_webFileSystem->createFileWriter(m_path, asyncFileWriterChromium.get()));
            asyncFileWriterChromium->setWebFileWriter(webFileWriter.release());
            m_callbacks->didCreateFileWriter(asyncFileWriterChromium.release(), info.length);
        }
        delete this;
    }

    virtual void didReadDirectory(const WebKit::WebVector<WebKit::WebFileSystemEntry>& entries, bool hasMore)
    {
        ASSERT_NOT_REACHED();
        delete this;
    }
    virtual void didOpenFileSystem(const WebKit::WebString& name, const WebKit::WebString& rootPath)
    {
        ASSERT_NOT_REACHED();
        delete this;
    }

    virtual void didFail(WebKit::WebFileError error)
    {
        ASSERT(m_callbacks);
        m_callbacks->didFail(error);
        delete this;
    }

private:
    AsyncFileWriterClient* m_client;
    String m_path;
    WebKit::WebFileSystem* m_webFileSystem;
    OwnPtr<WebCore::AsyncFileSystemCallbacks> m_callbacks;
};

void AsyncFileSystemChromium::createWriter(AsyncFileWriterClient* client, const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
{
    m_webFileSystem->readMetadata(path, new FileWriterHelperCallbacks(client, path, m_webFileSystem, callbacks));
}

} // namespace WebCore

#endif