1ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen// Copyright (c) 2011 The Chromium Authors. All rights reserved. 2c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// found in the LICENSE file. 4c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 5c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#ifndef CHROME_BROWSER_CHROMEOS_LOGIN_IMAGE_DECODER_H_ 6c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#define CHROME_BROWSER_CHROMEOS_LOGIN_IMAGE_DECODER_H_ 73345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick#pragma once 8c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 9ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen#include <string> 10c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include <vector> 11c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 12c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/utility_process_host.h" 13c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 14c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochnamespace chromeos { 15c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 16c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Decodes an image in a sandboxed process. 17c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochclass ImageDecoder : public UtilityProcessHost::Client { 18c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch public: 19c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch class Delegate { 20c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch public: 21c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Called when image is decoded. 22ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen // |decoder| is used to identify the image in case of decoding several 23ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen // images simultaneously. 24ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen virtual void OnImageDecoded(const ImageDecoder* decoder, 25ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const SkBitmap& decoded_image) = 0; 26ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen 27ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen // Called when decoding image failed. Delegate can do some cleanup in 28ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen // this handler. 29ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen virtual void OnDecodeImageFailed(const ImageDecoder* decoder) {} 30c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 31c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch protected: 32c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch virtual ~Delegate() {} 33c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch }; 34c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 35c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ImageDecoder(Delegate* delegate, 36ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const std::string& image_data); 37c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 38c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Starts image decoding. 39c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch void Start(); 40c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 41c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch private: 42c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // It's a reference counted object, so destructor is private. 43c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch virtual ~ImageDecoder() {} 44c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 45c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Overidden from UtilityProcessHost::Client: 46c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch virtual void OnDecodeImageSucceeded(const SkBitmap& decoded_image); 47ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen virtual void OnDecodeImageFailed(); 48c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 49c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Launches sandboxed process that will decode the image. 50ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen void DecodeImageInSandbox(const std::vector<unsigned char>& image_data); 51c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 52c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch Delegate* delegate_; 53c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch std::vector<unsigned char> image_data_; 54ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen BrowserThread::ID target_thread_id_; 55c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 56c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DISALLOW_COPY_AND_ASSIGN(ImageDecoder); 57c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch}; 58c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 59c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} // namespace chromeos 60c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 61c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#endif // CHROME_BROWSER_CHROMEOS_LOGIN_IMAGE_DECODER_H_ 62