extensions/browser/file_reader.cc

   1 // Copyright (c) 2011 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 "extensions/browser/file_reader.h"
   6
   7 #include "base/bind.h"
   8 #include "base/files/file_util.h"
   9 #include "base/message_loop/message_loop.h"
  10 #include "content/public/browser/browser_thread.h"
  11
  12 using content::BrowserThread;
  13
  14 FileReader::FileReader(const extensions::ExtensionResource& resource,
  15                        const Callback& callback)
  16     : resource_(resource),
  17       callback_(callback),
  18       origin_loop_(base::MessageLoop::current()) {}
  19
  20 void FileReader::Start() {
  21   BrowserThread::PostTask(
  22       BrowserThread::FILE, FROM_HERE,
  23       base::Bind(&FileReader::ReadFileOnBackgroundThread, this));
  24 }
  25
  26 FileReader::~FileReader() {}
  27
  28 void FileReader::ReadFileOnBackgroundThread() {
  29   std::string data;
  30   bool success = base::ReadFileToString(resource_.GetFilePath(), &data);
  31   origin_loop_->PostTask(FROM_HERE, base::Bind(callback_, success, data));
  32 }