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Issue 2117713002: Print directly to CUPS using the IPP APIs (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@ippRead
Patch Set: lint Created 4 years, 5 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "chrome/browser/printing/pdf_to_emf_converter.h" 5 #include "chrome/browser/printing/pdf_to_emf_converter.h"
6 6
7 #include <stdint.h> 7 #include <stdint.h>
8 8
9 #include <memory> 9 #include <memory>
10 #include <queue> 10 #include <queue>
11 #include <utility> 11 #include <utility>
12 #include <vector>
12 13
13 #include "base/files/file.h" 14 #include "base/files/file.h"
14 #include "base/files/file_util.h" 15 #include "base/files/file_util.h"
15 #include "base/files/scoped_temp_dir.h" 16 #include "base/files/scoped_temp_dir.h"
16 #include "base/logging.h" 17 #include "base/logging.h"
17 #include "base/macros.h" 18 #include "base/macros.h"
18 #include "base/threading/thread_task_runner_handle.h" 19 #include "base/threading/thread_task_runner_handle.h"
19 #include "chrome/common/chrome_utility_messages.h" 20 #include "chrome/common/chrome_utility_messages.h"
20 #include "chrome/common/chrome_utility_printing_messages.h" 21 #include "chrome/common/chrome_utility_printing_messages.h"
21 #include "chrome/grit/generated_resources.h" 22 #include "chrome/grit/generated_resources.h"
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65 // files, and to efficiently interact with utility process. 66 // files, and to efficiently interact with utility process.
66 class LazyEmf : public MetafilePlayer { 67 class LazyEmf : public MetafilePlayer {
67 public: 68 public:
68 LazyEmf(const scoped_refptr<RefCountedTempDir>& temp_dir, ScopedTempFile file) 69 LazyEmf(const scoped_refptr<RefCountedTempDir>& temp_dir, ScopedTempFile file)
69 : temp_dir_(temp_dir), file_(std::move(file)) { 70 : temp_dir_(temp_dir), file_(std::move(file)) {
70 CHECK(file_); 71 CHECK(file_);
71 } 72 }
72 ~LazyEmf() override { Close(); } 73 ~LazyEmf() override { Close(); }
73 74
74 bool SafePlayback(HDC hdc) const override; 75 bool SafePlayback(HDC hdc) const override;
76 bool GetDataAsVector(std::vector<char>* buffer) const override;
75 bool SaveTo(base::File* file) const override; 77 bool SaveTo(base::File* file) const override;
76 78
77 private: 79 private:
78 void Close() const; 80 void Close() const;
79 bool LoadEmf(Emf* emf) const; 81 bool LoadEmf(Emf* emf) const;
80 82
81 mutable scoped_refptr<RefCountedTempDir> temp_dir_; 83 mutable scoped_refptr<RefCountedTempDir> temp_dir_;
82 mutable ScopedTempFile file_; // Mutable because of consts in base class. 84 mutable ScopedTempFile file_; // Mutable because of consts in base class.
83 85
84 DISALLOW_COPY_AND_ASSIGN(LazyEmf); 86 DISALLOW_COPY_AND_ASSIGN(LazyEmf);
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251 Emf emf; 253 Emf emf;
252 bool result = LoadEmf(&emf) && emf.SafePlayback(hdc); 254 bool result = LoadEmf(&emf) && emf.SafePlayback(hdc);
253 // TODO(vitalybuka): Fix destruction of metafiles. For some reasons 255 // TODO(vitalybuka): Fix destruction of metafiles. For some reasons
254 // instances of Emf are not deleted. crbug.com/411683 256 // instances of Emf are not deleted. crbug.com/411683
255 // It's known that the Emf going to be played just once to a printer. So just 257 // It's known that the Emf going to be played just once to a printer. So just
256 // release file here. 258 // release file here.
257 Close(); 259 Close();
258 return result; 260 return result;
259 } 261 }
260 262
263 bool LazyEmf::GetDataAsVector(std::vector<char>* buffer) const {
Lei Zhang 2016/07/25 21:06:04 Thanks for implemeting this... but will this ever
skau 2016/07/27 00:16:47 It's not currently called. NOTREACHED() probably
264 Emf emf;
265 return LoadEmf(&emf) && emf.GetDataAsVector(buffer);
266 }
267
261 bool LazyEmf::SaveTo(base::File* file) const { 268 bool LazyEmf::SaveTo(base::File* file) const {
262 Emf emf; 269 Emf emf;
263 return LoadEmf(&emf) && emf.SaveTo(file); 270 return LoadEmf(&emf) && emf.SaveTo(file);
264 } 271 }
265 272
266 void LazyEmf::Close() const { 273 void LazyEmf::Close() const {
267 file_.reset(); 274 file_.reset();
268 temp_dir_ = NULL; 275 temp_dir_ = NULL;
269 } 276 }
270 277
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491 498
492 PdfToEmfConverter::~PdfToEmfConverter() { 499 PdfToEmfConverter::~PdfToEmfConverter() {
493 } 500 }
494 501
495 // static 502 // static
496 std::unique_ptr<PdfToEmfConverter> PdfToEmfConverter::CreateDefault() { 503 std::unique_ptr<PdfToEmfConverter> PdfToEmfConverter::CreateDefault() {
497 return std::unique_ptr<PdfToEmfConverter>(new PdfToEmfConverterImpl()); 504 return std::unique_ptr<PdfToEmfConverter>(new PdfToEmfConverterImpl());
498 } 505 }
499 506
500 } // namespace printing 507 } // namespace printing
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