android_webview/native/public/aw_assets.h

   1 // Copyright 2014 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 #ifndef ANDROID_WEBVIEW_NATIVE_PUBLIC_AW_ASSETS_H_
   6 #define ANDROID_WEBVIEW_NATIVE_PUBLIC_AW_ASSETS_H_
   7
   8 #include <string>
   9
  10 #include "base/android/jni_android.h"
  11 #include "base/posix/global_descriptors.h"
  12
  13 namespace android_webview {
  14 namespace AwAssets {
  15
  16 // Called by native to retrieve an asset (e.g. a .pak file) from the apk.
  17 // Returns: true in case of success, false otherwise.
  18 // Output arguments:
  19 // - |fd|: file descriptor to the apk. The caller takes the ownership.
  20 // - |offset|: offset in bytes from the start of the file
  21 // - |size|: size in bytes of the asset / resource.
  22 bool OpenAsset(const std::string& filename,
  23                int* fd,
  24                int64* offset,
  25                int64* size);
  26
  27 bool RegisterAssetWithGlobalDescriptors(base::GlobalDescriptors::Key key,
  28                                         const std::string& asset_filename);
  29
  30 }  // namespace AwAssets
  31
  32 bool RegisterAwAssets(JNIEnv* env);
  33
  34 }  // namsespace android_webview
  35
  36 #endif  // ANDROID_WEBVIEW_NATIVE_PUBLIC_AW_ASSETS_H_