1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/renderer/extensions/media_galleries_custom_bindings.h"
6
7#include <string>
8
9#include "extensions/renderer/script_context.h"
10#include "storage/common/fileapi/file_system_util.h"
11#include "third_party/WebKit/public/web/WebDOMFileSystem.h"
12#include "third_party/WebKit/public/web/WebDocument.h"
13#include "third_party/WebKit/public/web/WebLocalFrame.h"
14#include "v8/include/v8.h"
15
16namespace extensions {
17
18namespace {
19
20// FileSystemObject GetMediaFileSystem(string file_system_url): construct
21// a file system object from a file system url.
22void GetMediaFileSystemObject(const v8::FunctionCallbackInfo<v8::Value>& args) {
23  CHECK_EQ(1, args.Length());
24  CHECK(args[0]->IsString());
25
26  std::string fs_mount(*v8::String::Utf8Value(args[0]));
27  CHECK(!fs_mount.empty());
28
29  blink::WebLocalFrame* webframe =
30      blink::WebLocalFrame::frameForCurrentContext();
31  const GURL origin = GURL(webframe->document().securityOrigin().toString());
32  std::string fs_name =
33      storage::GetFileSystemName(origin, storage::kFileSystemTypeExternal);
34  fs_name.append("_");
35  fs_name.append(fs_mount);
36  const GURL root_url(
37      storage::GetExternalFileSystemRootURIString(origin, fs_mount));
38  args.GetReturnValue().Set(
39      blink::WebDOMFileSystem::create(webframe,
40                                      blink::WebFileSystemTypeExternal,
41                                      blink::WebString::fromUTF8(fs_name),
42                                      root_url)
43          .toV8Value(args.Holder(), args.GetIsolate()));
44}
45
46}  // namespace
47
48MediaGalleriesCustomBindings::MediaGalleriesCustomBindings(
49    ScriptContext* context)
50    : ObjectBackedNativeHandler(context) {
51  RouteFunction("GetMediaFileSystemObject",
52                base::Bind(&GetMediaFileSystemObject));
53}
54
55}  // namespace extensions
56