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| 1 // Copyright 2016 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 CHROME_BROWSER_EXTENSIONS_CLIPBOARD_EXTENSION_HELPER_H_ |
| 6 #define CHROME_BROWSER_EXTENSIONS_CLIPBOARD_EXTENSION_HELPER_H_ |
| 7 |
| 8 #include <string> |
| 9 #include <vector> |
| 10 |
| 11 #include "base/callback.h" |
| 12 #include "ui/gfx/image/image_skia.h" |
| 13 |
| 14 namespace ui { |
| 15 class ScopedClipboardWriter; |
| 16 } |
| 17 |
| 18 namespace extensions { |
| 19 |
| 20 // A helper class for decoding the image data and saving decoded image data on |
| 21 // clipboard, called from clipboard extension API. |
| 22 class ClipboardExtensionHelper { |
| 23 public: |
| 24 ClipboardExtensionHelper(); |
| 25 ~ClipboardExtensionHelper(); |
| 26 |
| 27 // Decodes and saves the image data on clipboard. Must run on UI thread. |
| 28 void DecodeAndSaveImageData(const std::vector<char>& data, |
| 29 const std::string& type, |
| 30 const base::Closure& success_callback, |
| 31 const base::Closure& error_callback); |
| 32 |
| 33 protected: |
| 34 // A class to decode PNG and JPEG file. |
| 35 class ClipboardImageDataDecoder; |
| 36 |
| 37 static ClipboardImageDataDecoder* clipboard_image_data_decoder_; |
| 38 |
| 39 private: |
| 40 // Handles decoded image data. |
| 41 void OnImageDecoded(const SkBitmap& bitmap); |
| 42 // Handles image decoding failure case. |
| 43 void OnImageDecodeFailure(); |
| 44 // Handles image decoding request cancelation case. |
| 45 void OnImageDecodeCancel(); |
| 46 |
| 47 base::Closure image_save_success_callback_; |
| 48 base::Closure image_save_error_callback_; |
| 49 std::unique_ptr<ui::ScopedClipboardWriter> clipboard_writer_; |
| 50 }; |
| 51 |
| 52 } // namespace extensions |
| 53 |
| 54 #endif // CHROME_BROWSER_EXTENSIONS_CLIPBOARD_EXTENSION_HELPER_H_ |
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