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      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/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 }
     33