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1 // Copyright (c) 2012 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/client/key_event_mapper.h" | |
6 | |
7 #include "remoting/proto/event.pb.h" | |
8 | |
9 namespace remoting { | |
10 | |
11 KeyEventMapper::KeyEventMapper() { | |
12 } | |
13 | |
14 KeyEventMapper::KeyEventMapper(InputStub* stub) : protocol::InputFilter(stub) { | |
15 } | |
16 | |
17 KeyEventMapper::~KeyEventMapper() { | |
18 } | |
19 | |
20 void KeyEventMapper::SetTrapCallback(KeyTrapCallback callback) { | |
21 trap_callback = callback; | |
22 } | |
23 | |
24 void KeyEventMapper::TrapKey(uint32_t usb_keycode, bool trap_key) { | |
25 if (trap_key) { | |
26 trapped_keys.insert(usb_keycode); | |
27 } else { | |
28 trapped_keys.erase(usb_keycode); | |
29 } | |
30 } | |
31 | |
32 void KeyEventMapper::RemapKey(uint32_t in_usb_keycode, | |
33 uint32_t out_usb_keycode) { | |
34 if (in_usb_keycode == out_usb_keycode) { | |
35 mapped_keys.erase(in_usb_keycode); | |
36 } else { | |
37 mapped_keys[in_usb_keycode] = out_usb_keycode; | |
38 } | |
39 } | |
40 | |
41 void KeyEventMapper::InjectKeyEvent(const protocol::KeyEvent& event) { | |
42 if (event.has_usb_keycode()) { | |
43 // Deliver trapped keys to the callback, not the next stub. | |
44 if (!trap_callback.is_null() && event.has_pressed() && | |
45 (trapped_keys.find(event.usb_keycode()) != trapped_keys.end())) { | |
46 trap_callback.Run(event); | |
47 return; | |
48 } | |
49 | |
50 // Re-map mapped keys to the new value before passing them on. | |
51 std::map<uint32_t, uint32_t>::iterator mapped = | |
52 mapped_keys.find(event.usb_keycode()); | |
53 if (mapped != mapped_keys.end()) { | |
54 protocol::KeyEvent new_event(event); | |
55 new_event.set_usb_keycode(mapped->second); | |
56 InputFilter::InjectKeyEvent(new_event); | |
57 return; | |
58 } | |
59 } | |
60 | |
61 InputFilter::InjectKeyEvent(event); | |
62 } | |
63 | |
64 } // namespace remoting | |
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