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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 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 | 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/chromeos/printing/fake_printer_discoverer.h" | 5 #include "chrome/browser/chromeos/printing/fake_printer_discoverer.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 #include <iterator> | 8 #include <iterator> |
9 #include <memory> | 9 #include <memory> |
10 | 10 |
11 #include "base/bind.h" | 11 #include "base/bind.h" |
12 #include "base/memory/ptr_util.h" | 12 #include "base/memory/ptr_util.h" |
13 #include "base/strings/stringprintf.h" | 13 #include "base/strings/stringprintf.h" |
14 #include "base/threading/sequenced_task_runner_handle.h" | 14 #include "base/threading/sequenced_task_runner_handle.h" |
15 #include "base/time/time.h" | 15 #include "base/time/time.h" |
16 #include "chrome/browser/chromeos/printing/printer_discoverer.h" | 16 #include "chrome/browser/chromeos/printing/printer_discoverer.h" |
17 | 17 |
18 namespace chromeos { | 18 namespace chromeos { |
19 | 19 |
20 // static | 20 // static |
21 std::unique_ptr<PrinterDiscoverer> PrinterDiscoverer::Create() { | 21 std::unique_ptr<PrinterDiscoverer> PrinterDiscoverer::Create() { |
22 return base::MakeUnique<FakePrinterDiscoverer>(); | 22 return base::MakeUnique<FakePrinterDiscoverer>(); |
23 } | 23 } |
24 | 24 |
25 FakePrinterDiscoverer::~FakePrinterDiscoverer() {} | 25 FakePrinterDiscoverer::~FakePrinterDiscoverer() {} |
26 | 26 |
27 bool FakePrinterDiscoverer::StartDiscovery() { | 27 bool FakePrinterDiscoverer::StartDiscovery() { |
28 discovery_running_ = true; | 28 discovery_running_ = true; |
29 | 29 |
30 for (auto observer : observers_) | 30 for (auto* observer : observers_) |
31 observer->OnDiscoveryStarted(); | 31 observer->OnDiscoveryStarted(); |
32 | 32 |
33 base::SequencedTaskRunnerHandle::Get()->PostNonNestableDelayedTask( | 33 base::SequencedTaskRunnerHandle::Get()->PostNonNestableDelayedTask( |
34 FROM_HERE, base::Bind(&FakePrinterDiscoverer::EmitPrinters, | 34 FROM_HERE, base::Bind(&FakePrinterDiscoverer::EmitPrinters, |
35 weak_ptr_factory_.GetWeakPtr(), 0, 2), | 35 weak_ptr_factory_.GetWeakPtr(), 0, 2), |
36 base::TimeDelta::FromMilliseconds(2000)); | 36 base::TimeDelta::FromMilliseconds(2000)); |
37 return true; | 37 return true; |
38 } | 38 } |
39 | 39 |
40 bool FakePrinterDiscoverer::StopDiscovery() { | 40 bool FakePrinterDiscoverer::StopDiscovery() { |
41 discovery_running_ = false; | 41 discovery_running_ = false; |
42 for (auto observer : observers_) | 42 for (auto* observer : observers_) |
43 observer->OnDiscoveryStopping(); | 43 observer->OnDiscoveryStopping(); |
44 | 44 |
45 return true; | 45 return true; |
46 } | 46 } |
47 | 47 |
48 void FakePrinterDiscoverer::AddObserver(PrinterDiscoverer::Observer* observer) { | 48 void FakePrinterDiscoverer::AddObserver(PrinterDiscoverer::Observer* observer) { |
49 auto found = std::find(observers_.begin(), observers_.end(), observer); | 49 auto found = std::find(observers_.begin(), observers_.end(), observer); |
50 if (found == observers_.end()) | 50 if (found == observers_.end()) |
51 observers_.push_back(observer); | 51 observers_.push_back(observer); |
52 } | 52 } |
(...skipping 25 matching lines...) Expand all Loading... |
78 void FakePrinterDiscoverer::EmitPrinters(size_t start, size_t end) { | 78 void FakePrinterDiscoverer::EmitPrinters(size_t start, size_t end) { |
79 if (!discovery_running_ || start >= printers_.size() || end < start) | 79 if (!discovery_running_ || start >= printers_.size() || end < start) |
80 return; | 80 return; |
81 | 81 |
82 size_t clipped_start = std::max(static_cast<size_t>(0), start); | 82 size_t clipped_start = std::max(static_cast<size_t>(0), start); |
83 size_t clipped_end = std::min(printers_.size(), end); | 83 size_t clipped_end = std::min(printers_.size(), end); |
84 if (!observers_.empty()) { | 84 if (!observers_.empty()) { |
85 std::vector<Printer> subset(printers_.cbegin() + clipped_start, | 85 std::vector<Printer> subset(printers_.cbegin() + clipped_start, |
86 printers_.cbegin() + clipped_end); | 86 printers_.cbegin() + clipped_end); |
87 | 87 |
88 for (auto observer : observers_) | 88 for (auto* observer : observers_) |
89 observer->OnPrintersFound(subset); | 89 observer->OnPrintersFound(subset); |
90 } | 90 } |
91 | 91 |
92 // schedule another emit if elements remain. | 92 // schedule another emit if elements remain. |
93 if (end < printers_.size()) { | 93 if (end < printers_.size()) { |
94 base::SequencedTaskRunnerHandle::Get()->PostNonNestableDelayedTask( | 94 base::SequencedTaskRunnerHandle::Get()->PostNonNestableDelayedTask( |
95 FROM_HERE, | 95 FROM_HERE, |
96 base::Bind(&FakePrinterDiscoverer::EmitPrinters, | 96 base::Bind(&FakePrinterDiscoverer::EmitPrinters, |
97 weak_ptr_factory_.GetWeakPtr(), clipped_end, end + end), | 97 weak_ptr_factory_.GetWeakPtr(), clipped_end, end + end), |
98 base::TimeDelta::FromMilliseconds(2000)); | 98 base::TimeDelta::FromMilliseconds(2000)); |
99 } else { | 99 } else { |
100 // We're done. Notify observers. | 100 // We're done. Notify observers. |
101 discovery_running_ = false; | 101 discovery_running_ = false; |
102 for (auto observer : observers_) | 102 for (auto* observer : observers_) |
103 observer->OnDiscoveryDone(); | 103 observer->OnDiscoveryDone(); |
104 } | 104 } |
105 } | 105 } |
106 | 106 |
107 } // namespace chromeos | 107 } // namespace chromeos |
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