third_party/WebKit/Source/modules/filesystem/HTMLInputElementFileSystem.cpp

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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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 "modules/filesystem/HTMLInputElementFileSystem.h"

#include "core/fileapi/FileList.h"
#include "core/html/HTMLInputElement.h"
#include "modules/filesystem/DOMFilePath.h"
#include "modules/filesystem/DOMFileSystem.h"
#include "modules/filesystem/DirectoryEntry.h"
#include "modules/filesystem/Entry.h"
#include "modules/filesystem/FileEntry.h"
#include "platform/FileMetadata.h"
#include "platform/heap/Handle.h"

namespace blink {

// static
EntryHeapVector HTMLInputElementFileSystem::webkitEntries(
    ExecutionContext* executionContext,
    HTMLInputElement& input) {
  EntryHeapVector entries;
  FileList* files = input.files();

  if (!files)
    return entries;

  DOMFileSystem* filesystem = DOMFileSystem::createIsolatedFileSystem(
      executionContext, input.droppedFileSystemId());
  if (!filesystem) {
    // Drag-drop isolated filesystem is not available.
    return entries;
  }

  for (unsigned i = 0; i < files->length(); ++i) {
    File* file = files->item(i);

    // FIXME: This involves synchronous file operation.
    FileMetadata metadata;
    if (!getFileMetadata(file->path(), metadata))
      continue;

    // The dropped entries are mapped as top-level entries in the isolated
    // filesystem.
    String virtualPath = DOMFilePath::append("/", file->name());
    if (metadata.type == FileMetadata::TypeDirectory)
      entries.append(DirectoryEntry::create(filesystem, virtualPath));
    else
      entries.append(FileEntry::create(filesystem, virtualPath));
  }
  return entries;
}

}  // namespace blink