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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_EXTENSIONS_CLIPBOARD_EXTENSION_HELPER_CHROMEOS_H_
#define CHROME_BROWSER_EXTENSIONS_CLIPBOARD_EXTENSION_HELPER_CHROMEOS_H_
#include <string>
#include <vector>
#include "base/callback.h"
#include "extensions/common/api/clipboard.h"
class SkBitmap;
namespace extensions {
// A helper class for decoding the image data and saving decoded image data on
// clipboard, called from clipboard extension API.
class ClipboardExtensionHelper {
public:
ClipboardExtensionHelper();
~ClipboardExtensionHelper();
// Decodes and saves the image data on clipboard. Must run on UI thread.
void DecodeAndSaveImageData(
const std::vector<char>& data,
api::clipboard::ImageType type,
const base::Closure& success_callback,
const base::Callback<void(const std::string&)>& error_callback);
private:
// A class to decode PNG and JPEG file.
class ClipboardImageDataDecoder;
// Handles decoded image data.
void OnImageDecoded(const SkBitmap& bitmap);
// Handles image decoding failure case.
void OnImageDecodeFailure();
// Handles image decoding request cancelation case.
void OnImageDecodeCancel();
std::unique_ptr<ClipboardImageDataDecoder> clipboard_image_data_decoder_;
base::Closure image_save_success_callback_;
base::Callback<void(const std::string&)> image_save_error_callback_;
DISALLOW_COPY_AND_ASSIGN(ClipboardExtensionHelper);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_CLIPBOARD_EXTENSION_HELPER_CHROMEOS_H_
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