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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "remoting/host/chromeos/clipboard_aura.h" | |
| 6 | |
| 7 #include "base/strings/utf_string_conversions.h" | |
| 8 #include "base/timer/timer.h" | |
| 9 #include "content/public/browser/browser_thread.h" | |
| 10 #include "remoting/base/constants.h" | |
| 11 #include "remoting/proto/event.pb.h" | |
| 12 #include "remoting/protocol/clipboard_stub.h" | |
| 13 #include "ui/base/clipboard/clipboard.h" | |
| 14 #include "ui/base/clipboard/scoped_clipboard_writer.h" | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 // Clipboard polling interval in milliseconds. | |
| 19 const int64 kClipboardPollingIntervalMs = 500; | |
| 20 | |
| 21 } // namespace | |
| 22 | |
| 23 namespace remoting { | |
| 24 | |
| 25 class ClipboardAura::Core { | |
| 26 public: | |
| 27 Core(); | |
| 28 | |
| 29 // Mirror the public interface. | |
| 30 void Start(scoped_ptr<protocol::ClipboardStub> client_clipboard); | |
| 31 void InjectClipboardEvent(const protocol::ClipboardEvent& event); | |
| 32 void Stop(); | |
| 33 | |
| 34 // Overrides the clipboard polling interval for unit test. | |
| 35 void SetPollingIntervalForTesting(base::TimeDelta polling_interval); | |
| 36 | |
| 37 private: | |
| 38 void CheckClipboardForChanges(); | |
| 39 | |
| 40 scoped_ptr<protocol::ClipboardStub> client_clipboard_; | |
| 41 scoped_ptr<base::RepeatingTimer<Core>> clipboard_polling_timer_; | |
| 42 uint64 current_change_count_; | |
| 43 base::TimeDelta polling_interval_; | |
| 44 | |
| 45 DISALLOW_COPY_AND_ASSIGN(Core); | |
| 46 }; | |
| 47 | |
| 48 ClipboardAura::ClipboardAura( | |
| 49 scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner) | |
| 50 : core_(new Core()), | |
| 51 ui_task_runner_(ui_task_runner) { | |
| 52 } | |
| 53 | |
| 54 ClipboardAura::~ClipboardAura() { | |
| 55 ui_task_runner_->DeleteSoon(FROM_HERE, core_.release()); | |
| 56 } | |
| 57 | |
| 58 void ClipboardAura::Start( | |
| 59 scoped_ptr<protocol::ClipboardStub> client_clipboard) { | |
| 60 ui_task_runner_->PostTask( | |
| 61 FROM_HERE, base::Bind(&Core::Start, base::Unretained(core_.get()), | |
| 62 base::Passed(&client_clipboard))); | |
| 63 } | |
| 64 | |
| 65 void ClipboardAura::InjectClipboardEvent( | |
| 66 const protocol::ClipboardEvent& event) { | |
| 67 ui_task_runner_->PostTask(FROM_HERE, | |
| 68 base::Bind(&Core::InjectClipboardEvent, | |
| 69 base::Unretained(core_.get()), event)); | |
| 70 } | |
| 71 | |
| 72 void ClipboardAura::Stop() { | |
| 73 ui_task_runner_->PostTask( | |
| 74 FROM_HERE, base::Bind(&Core::Stop, base::Unretained(core_.get()))); | |
| 75 }; | |
| 76 | |
| 77 void ClipboardAura::SetPollingIntervalForTesting( | |
| 78 base::TimeDelta polling_interval) { | |
| 79 core_->SetPollingIntervalForTesting(polling_interval); | |
| 80 } | |
| 81 | |
| 82 ClipboardAura::Core::Core() | |
| 83 : current_change_count_(0), | |
| 84 polling_interval_( | |
| 85 base::TimeDelta::FromMilliseconds(kClipboardPollingIntervalMs)) { | |
| 86 } | |
| 87 | |
| 88 void ClipboardAura::Core::Start( | |
| 89 scoped_ptr<protocol::ClipboardStub> client_clipboard) { | |
| 90 client_clipboard_.reset(client_clipboard.release()); | |
| 91 | |
| 92 // Aura doesn't provide a clipboard-changed notification. The only way to | |
| 93 // detect clipboard changes is by polling. | |
| 94 clipboard_polling_timer_.reset(new base::RepeatingTimer<Core>()); | |
| 95 clipboard_polling_timer_->Start( | |
| 96 FROM_HERE, polling_interval_, this, | |
| 97 &ClipboardAura::Core::CheckClipboardForChanges); | |
| 98 } | |
| 99 | |
| 100 void ClipboardAura::Core::InjectClipboardEvent( | |
| 101 const protocol::ClipboardEvent& event) { | |
| 102 // Currently we only handle UTF-8 text. | |
| 103 if (event.mime_type().compare(kMimeTypeTextUtf8) != 0) { | |
| 104 return; | |
| 105 } | |
| 106 | |
| 107 ui::ScopedClipboardWriter clipboard_writer(ui::CLIPBOARD_TYPE_COPY_PASTE); | |
| 108 clipboard_writer.WriteText(base::UTF8ToUTF16(event.data())); | |
| 109 | |
| 110 // Update local change-count to prevent this change from being picked up by | |
| 111 // CheckClipboardForChanges. | |
| 112 current_change_count_++; | |
| 113 } | |
| 114 | |
| 115 void ClipboardAura::Core::Stop() { | |
| 116 clipboard_polling_timer_.reset(); | |
| 117 client_clipboard_.reset(); | |
| 118 } | |
| 119 | |
| 120 void ClipboardAura::Core::SetPollingIntervalForTesting( | |
| 121 base::TimeDelta polling_interval) { | |
| 122 polling_interval_ = polling_interval; | |
| 123 } | |
| 124 | |
| 125 void ClipboardAura::Core::CheckClipboardForChanges() { | |
| 126 ui::Clipboard* clipboard = ui::Clipboard::GetForCurrentThread(); | |
| 127 uint64 change_count = | |
| 128 clipboard->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE); | |
| 129 | |
| 130 if (change_count == current_change_count_) { | |
| 131 return; | |
| 132 } | |
| 133 | |
| 134 current_change_count_ = change_count; | |
| 135 | |
| 136 protocol::ClipboardEvent event; | |
| 137 std::string data; | |
| 138 | |
| 139 clipboard->ReadAsciiText(ui::CLIPBOARD_TYPE_COPY_PASTE, &data); | |
| 140 event.set_mime_type(kMimeTypeTextUtf8); | |
| 141 event.set_data(data); | |
| 142 | |
| 143 client_clipboard_->InjectClipboardEvent(event); | |
| 144 } | |
| 145 | |
| 146 scoped_ptr<Clipboard> Clipboard::Create() { | |
| 147 return make_scoped_ptr( | |
| 148 new ClipboardAura(content::BrowserThread::GetMessageLoopProxyForThread( | |
| 149 content::BrowserThread::UI))); | |
| 150 } | |
| 151 | |
| 152 } // namespace remoting | |
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Chromium Code Reviews
Issue 718313002:
Revert "Remote assistance on Chrome OS Part VIII - Compile on Ozone" (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master