Source/web/WebFileSystemCallbacksImpl.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 without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "config.h"
#include "WebFileSystemCallbacksImpl.h"

#include "AsyncFileSystemChromium.h"
#include "core/platform/AsyncFileSystemCallbacks.h"
#include "core/platform/FileMetadata.h"
#include "public/platform/WebFileInfo.h"
#include "public/platform/WebFileSystem.h"
#include "public/platform/WebFileSystemEntry.h"
#include "public/platform/WebFileWriter.h"
#include "public/platform/WebString.h"
#include "wtf/Vector.h"

using namespace WebCore;

namespace WebKit {

WebFileSystemCallbacksImpl::WebFileSystemCallbacksImpl(PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
    : m_callbacks(callbacks)
{
    ASSERT(m_callbacks);
}

WebFileSystemCallbacksImpl::~WebFileSystemCallbacksImpl()
{
}

void WebFileSystemCallbacksImpl::didSucceed()
{
    m_callbacks->didSucceed();
    delete this;
}

void WebFileSystemCallbacksImpl::didReadMetadata(const WebFileInfo& webFileInfo)
{
    FileMetadata fileMetadata;
    fileMetadata.modificationTime = webFileInfo.modificationTime;
    fileMetadata.length = webFileInfo.length;
    fileMetadata.type = static_cast<FileMetadata::Type>(webFileInfo.type);
    fileMetadata.platformPath = webFileInfo.platformPath;
    m_callbacks->didReadMetadata(fileMetadata);
    delete this;
}

void WebFileSystemCallbacksImpl::didCreateSnapshotFile(const WebFileInfo& webFileInfo)
{
    // It's important to create a BlobDataHandle that refers to the platform file path prior
    // to return from this method so the underlying file will not be deleted.
    OwnPtr<BlobData> blobData = BlobData::create();
    blobData->appendFile(webFileInfo.platformPath);
    RefPtr<BlobDataHandle> snapshotBlob = BlobDataHandle::create(blobData.release(), webFileInfo.length);
    didCreateSnapshotFile(webFileInfo, snapshotBlob);
}

void WebFileSystemCallbacksImpl::didCreateSnapshotFile(const WebFileInfo& webFileInfo, PassRefPtr<WebCore::BlobDataHandle> snapshot)
{
    FileMetadata fileMetadata;
    fileMetadata.modificationTime = webFileInfo.modificationTime;
    fileMetadata.length = webFileInfo.length;
    fileMetadata.type = static_cast<FileMetadata::Type>(webFileInfo.type);
    fileMetadata.platformPath = webFileInfo.platformPath;
    m_callbacks->didCreateSnapshotFile(fileMetadata, snapshot);
    delete this;
}

void WebFileSystemCallbacksImpl::didReadDirectory(const WebVector<WebFileSystemEntry>& entries, bool hasMore)
{
    for (size_t i = 0; i < entries.size(); ++i)
        m_callbacks->didReadDirectoryEntry(entries[i].name, entries[i].isDirectory);
    m_callbacks->didReadDirectoryEntries(hasMore);
    delete this;
}

void WebFileSystemCallbacksImpl::didOpenFileSystem(const WebString& name, const WebURL& rootURL)
{
    // This object is intended to delete itself on exit.
    OwnPtr<WebFileSystemCallbacksImpl> callbacks = adoptPtr(this);
    m_callbacks->didOpenFileSystem(name, rootURL, AsyncFileSystemChromium::create());
}

void WebFileSystemCallbacksImpl::didCreateFileWriter(WebFileWriter* webFileWriter, long long length)
{
    // This object is intended to delete itself on exit.
    OwnPtr<WebFileSystemCallbacksImpl> callbacks = adoptPtr(this);

    m_callbacks->didCreateFileWriter(adoptPtr(webFileWriter), length);
}

void WebFileSystemCallbacksImpl::didFail(WebFileError error)
{
    m_callbacks->didFail(error);
    delete this;
}

bool WebFileSystemCallbacksImpl::shouldBlockUntilCompletion() const
{
    return m_callbacks->shouldBlockUntilCompletion();
}

} // namespace WebKit