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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 "ash/accelerators/magnifier_key_scroller.h" | 5 #include "ash/accelerators/magnifier_key_scroller.h" |
6 | 6 |
7 #include <utility> | 7 #include <utility> |
8 | 8 |
9 #include "ash/accelerators/key_hold_detector.h" | 9 #include "ash/accelerators/key_hold_detector.h" |
10 #include "ash/common/ash_switches.h" | 10 #include "ash/common/ash_switches.h" |
11 #include "ash/magnifier/magnification_controller.h" | 11 #include "ash/magnifier/magnification_controller.h" |
12 #include "ash/shell.h" | 12 #include "ash/shell.h" |
13 #include "base/command_line.h" | 13 #include "base/command_line.h" |
14 #include "ui/events/event.h" | 14 #include "ui/events/event.h" |
15 | 15 |
16 namespace ash { | 16 namespace ash { |
17 namespace { | 17 namespace { |
18 bool magnifier_key_scroller_enabled = false; | 18 bool magnifier_key_scroller_enabled = false; |
19 } | 19 } |
20 | 20 |
21 // static | 21 // static |
22 bool MagnifierKeyScroller::IsEnabled() { | 22 bool MagnifierKeyScroller::IsEnabled() { |
23 bool has_switch = false; | 23 bool has_switch = false; |
24 #if defined(OS_CHROMEOS) | 24 #if defined(OS_CHROMEOS) |
25 has_switch = base::CommandLine::ForCurrentProcess()->HasSwitch( | 25 has_switch = base::CommandLine::ForCurrentProcess()->HasSwitch( |
26 switches::kAshEnableMagnifierKeyScroller); | 26 switches::kAshEnableMagnifierKeyScroller); |
27 #endif | 27 #endif |
28 | 28 |
29 return (magnifier_key_scroller_enabled || has_switch) && | 29 return (magnifier_key_scroller_enabled || has_switch) && |
30 ash::Shell::GetInstance()->magnification_controller()->IsEnabled(); | 30 ash::Shell::GetInstance()->magnification_controller()->IsEnabled(); |
31 } | 31 } |
32 | 32 |
33 // static | 33 // static |
34 void MagnifierKeyScroller::SetEnabled(bool enabled) { | 34 void MagnifierKeyScroller::SetEnabled(bool enabled) { |
35 magnifier_key_scroller_enabled = enabled; | 35 magnifier_key_scroller_enabled = enabled; |
36 } | 36 } |
37 | 37 |
38 // static | 38 // static |
39 std::unique_ptr<ui::EventHandler> MagnifierKeyScroller::CreateHandler() { | 39 std::unique_ptr<ui::EventHandler> MagnifierKeyScroller::CreateHandler() { |
40 std::unique_ptr<KeyHoldDetector::Delegate> delegate( | 40 std::unique_ptr<KeyHoldDetector::Delegate> delegate( |
41 new MagnifierKeyScroller()); | 41 new MagnifierKeyScroller()); |
42 return std::unique_ptr<ui::EventHandler>( | 42 return std::unique_ptr<ui::EventHandler>( |
43 new KeyHoldDetector(std::move(delegate))); | 43 new KeyHoldDetector(std::move(delegate))); |
44 } | 44 } |
45 | 45 |
46 bool MagnifierKeyScroller::ShouldProcessEvent(const ui::KeyEvent* event) const { | 46 bool MagnifierKeyScroller::ShouldProcessEvent(const ui::KeyEvent* event) const { |
47 return IsEnabled() && | 47 return IsEnabled() && (event->key_code() == ui::VKEY_UP || |
48 (event->key_code() == ui::VKEY_UP || | 48 event->key_code() == ui::VKEY_DOWN || |
49 event->key_code() == ui::VKEY_DOWN || | 49 event->key_code() == ui::VKEY_LEFT || |
50 event->key_code() == ui::VKEY_LEFT || | 50 event->key_code() == ui::VKEY_RIGHT); |
51 event->key_code() == ui::VKEY_RIGHT); | |
52 } | 51 } |
53 | 52 |
54 bool MagnifierKeyScroller::IsStartEvent(const ui::KeyEvent* event) const { | 53 bool MagnifierKeyScroller::IsStartEvent(const ui::KeyEvent* event) const { |
55 return event->type() == ui::ET_KEY_PRESSED && | 54 return event->type() == ui::ET_KEY_PRESSED && |
56 event->flags() & ui::EF_SHIFT_DOWN; | 55 event->flags() & ui::EF_SHIFT_DOWN; |
57 } | 56 } |
58 | 57 |
59 bool MagnifierKeyScroller::ShouldStopEventPropagation() const { | 58 bool MagnifierKeyScroller::ShouldStopEventPropagation() const { |
60 return true; | 59 return true; |
61 } | 60 } |
62 | 61 |
63 void MagnifierKeyScroller::OnKeyHold(const ui::KeyEvent* event) { | 62 void MagnifierKeyScroller::OnKeyHold(const ui::KeyEvent* event) { |
64 MagnificationController* controller = | 63 MagnificationController* controller = |
65 Shell::GetInstance()->magnification_controller(); | 64 Shell::GetInstance()->magnification_controller(); |
66 switch (event->key_code()) { | 65 switch (event->key_code()) { |
(...skipping 18 matching lines...) Expand all Loading... |
85 MagnificationController* controller = | 84 MagnificationController* controller = |
86 Shell::GetInstance()->magnification_controller(); | 85 Shell::GetInstance()->magnification_controller(); |
87 controller->SetScrollDirection(MagnificationController::SCROLL_NONE); | 86 controller->SetScrollDirection(MagnificationController::SCROLL_NONE); |
88 } | 87 } |
89 | 88 |
90 MagnifierKeyScroller::MagnifierKeyScroller() {} | 89 MagnifierKeyScroller::MagnifierKeyScroller() {} |
91 | 90 |
92 MagnifierKeyScroller::~MagnifierKeyScroller() {} | 91 MagnifierKeyScroller::~MagnifierKeyScroller() {} |
93 | 92 |
94 } // namespace ash | 93 } // namespace ash |
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