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Side by Side Diff: ui/base/accelerator_manager.cc

Issue 8695005: Move accelerator related files to ui/base/accelerators (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 9 years ago
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1 // Copyright (c) 2011 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 "ui/base/accelerator_manager.h"
6
7 #include <algorithm>
8
9 #include "base/logging.h"
10
11 namespace ui {
12
13 AcceleratorManager::AcceleratorManager() {
14 }
15
16 AcceleratorManager::~AcceleratorManager() {
17 }
18
19 void AcceleratorManager::Register(const Accelerator& accelerator,
20 AcceleratorTarget* target) {
21 AcceleratorTargetList& targets = accelerators_[accelerator];
22 DCHECK(std::find(targets.begin(), targets.end(), target) == targets.end())
23 << "Registering the same target multiple times";
24 targets.push_front(target);
25 }
26
27 void AcceleratorManager::Unregister(const Accelerator& accelerator,
28 AcceleratorTarget* target) {
29 AcceleratorMap::iterator map_iter = accelerators_.find(accelerator);
30 if (map_iter == accelerators_.end()) {
31 NOTREACHED() << "Unregistering non-existing accelerator";
32 return;
33 }
34
35 AcceleratorTargetList* targets = &map_iter->second;
36 AcceleratorTargetList::iterator target_iter =
37 std::find(targets->begin(), targets->end(), target);
38 if (target_iter == targets->end()) {
39 NOTREACHED() << "Unregistering accelerator for wrong target";
40 return;
41 }
42
43 targets->erase(target_iter);
44 }
45
46 void AcceleratorManager::UnregisterAll(AcceleratorTarget* target) {
47 for (AcceleratorMap::iterator map_iter = accelerators_.begin();
48 map_iter != accelerators_.end(); ++map_iter) {
49 AcceleratorTargetList* targets = &map_iter->second;
50 targets->remove(target);
51 }
52 }
53
54 bool AcceleratorManager::Process(const Accelerator& accelerator) {
55 AcceleratorMap::iterator map_iter = accelerators_.find(accelerator);
56 if (map_iter != accelerators_.end()) {
57 // We have to copy the target list here, because an AcceleratorPressed
58 // event handler may modify the list.
59 AcceleratorTargetList targets(map_iter->second);
60 for (AcceleratorTargetList::iterator iter = targets.begin();
61 iter != targets.end(); ++iter) {
62 if ((*iter)->AcceleratorPressed(accelerator))
63 return true;
64 }
65 }
66 return false;
67 }
68
69 AcceleratorTarget* AcceleratorManager::GetCurrentTarget(
70 const Accelerator& accelerator) const {
71 AcceleratorMap::const_iterator map_iter = accelerators_.find(accelerator);
72 if (map_iter == accelerators_.end() || map_iter->second.empty())
73 return NULL;
74 return map_iter->second.front();
75 }
76
77 } // namespace ui
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