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Side by Side Diff: chrome/browser/chromeos/input_method/xkeyboard.h

Issue 12672008: Move xkeyboard.cc from c/b/chromeos/input_method to chromeos/ime (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: rebase Created 7 years, 8 months ago
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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 #ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_XKEYBOARD_H_
6 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_XKEYBOARD_H_
7
8 #include <string>
9 #include <vector>
10
11 #include "base/basictypes.h"
12
13 namespace chromeos {
14 namespace input_method {
15
16 struct AutoRepeatRate {
17 AutoRepeatRate() : initial_delay_in_ms(0), repeat_interval_in_ms(0) {}
18 unsigned int initial_delay_in_ms;
19 unsigned int repeat_interval_in_ms;
20 };
21
22 enum ModifierLockStatus {
23 kDisableLock = 0,
24 kEnableLock,
25 kDontChange,
26 };
27
28 enum ModifierKey {
29 kSearchKey = 0, // Customizable.
30 kControlKey, // Customizable.
31 kAltKey, // Customizable.
32 kVoidKey,
33 kCapsLockKey,
34 // IMPORTANT: You should update kCustomizableKeys[] in .cc file, if you
35 // add a customizable key.
36 kNumModifierKeys,
37 };
38
39 class InputMethodUtil;
40
41 class XKeyboard {
42 public:
43 virtual ~XKeyboard() {}
44
45 // Sets the current keyboard layout to |layout_name|. This function does not
46 // change the current mapping of the modifier keys. Returns true on success.
47 virtual bool SetCurrentKeyboardLayoutByName(
48 const std::string& layout_name) = 0;
49
50 // Sets the current keyboard layout again. We have to call the function every
51 // time when "XI_HierarchyChanged" XInput2 event is sent to Chrome. See
52 // xinput_hierarchy_changed_event_listener.h for details.
53 virtual bool ReapplyCurrentKeyboardLayout() = 0;
54
55 // Updates keyboard LEDs on all keyboards.
56 // XKB asymmetrically propagates keyboard modifier indicator state changes to
57 // slave keyboards. If the state change is initiated from a client to the
58 // "core/master keyboard", XKB changes global state and pushes an indication
59 // change down to all keyboards. If the state change is initiated by one slave
60 // (physical) keyboard, it changes global state but only pushes an indicator
61 // state change down to that one keyboard.
62 // This function changes LEDs on all keyboards by explicitly updating the
63 // core/master keyboard.
64 virtual void ReapplyCurrentModifierLockStatus() = 0;
65
66 // Sets the Caps Lock and Num Lock status. Do not call the function from
67 // non-UI threads.
68 virtual void SetLockedModifiers(ModifierLockStatus new_caps_lock_status,
69 ModifierLockStatus new_num_lock_status) = 0;
70
71 // Sets the num lock status to |enable_num_lock|. Do not call the function
72 // from non-UI threads.
73 virtual void SetNumLockEnabled(bool enable_num_lock) = 0;
74
75 // Sets the caps lock status to |enable_caps_lock|. Do not call the function
76 // from non-UI threads.
77 virtual void SetCapsLockEnabled(bool enable_caps_lock) = 0;
78
79 // Returns true if num lock is enabled. Do not call the function from non-UI
80 // threads.
81 virtual bool NumLockIsEnabled() = 0;
82
83 // Returns true if caps lock is enabled. Do not call the function from non-UI
84 // threads.
85 virtual bool CapsLockIsEnabled() = 0;
86
87 // Returns a mask (e.g. 1U<<4) for Num Lock. On error, returns 0. Do not call
88 // the function from non-UI threads.
89 // TODO(yusukes): Move this and webdriver::GetXModifierMask() functions in
90 // chrome/test/webdriver/keycode_text_conversion_x.cc to ui/base/x/x11_util.
91 // The two functions are almost the same.
92 virtual unsigned int GetNumLockMask() = 0;
93
94 // Set true on |out_caps_lock_enabled| if Caps Lock is enabled. Set true on
95 // |out_num_lock_enabled| if Num Lock is enabled. Both out parameters can be
96 // NULL. Do not call the function from non-UI threads.
97 virtual void GetLockedModifiers(bool* out_caps_lock_enabled,
98 bool* out_num_lock_enabled) = 0;
99
100 // Turns on and off the auto-repeat of the keyboard. Returns true on success.
101 // Do not call the function from non-UI threads.
102 // TODO(yusukes): Make this function non-static so we can mock it.
103 static bool SetAutoRepeatEnabled(bool enabled);
104
105 // Sets the auto-repeat rate of the keyboard, initial delay in ms, and repeat
106 // interval in ms. Returns true on success. Do not call the function from
107 // non-UI threads.
108 // TODO(yusukes): Make this function non-static so we can mock it.
109 static bool SetAutoRepeatRate(const AutoRepeatRate& rate);
110
111 // Returns true if auto repeat is enabled. This function is protected: for
112 // testability.
113 static bool GetAutoRepeatEnabledForTesting();
114
115 // On success, set current auto repeat rate on |out_rate| and returns true.
116 // Returns false otherwise. This function is protected: for testability.
117 static bool GetAutoRepeatRateForTesting(AutoRepeatRate* out_rate);
118
119 // Returns false if |layout_name| contains a bad character.
120 static bool CheckLayoutNameForTesting(const std::string& layout_name);
121
122 // Note: At this moment, classes other than InputMethodManager should not
123 // instantiate the XKeyboard class.
124 static XKeyboard* Create();
125 };
126
127 } // namespace input_method
128 } // namespace chromeos
129
130 #endif // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_XKEYBOARD_H_
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