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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#include "modules/filesystem/HTMLInputElementFileSystem.h"

#include "core/dom/ExecutionContext.h"
#include "core/fileapi/FileList.h"
#include "core/html/forms/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/bindings/ScriptState.h"
#include "platform/heap/Handle.h"

namespace blink {

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

  if (!files)
    return entries;

  DOMFileSystem* filesystem = DOMFileSystem::CreateIsolatedFileSystem(
      ExecutionContext::From(script_state), 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->GetPath(), metadata))
      continue;

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

}  // namespace blink