1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_VIEWS_IME_INPUT_METHOD_WIN_H_
#define UI_VIEWS_IME_INPUT_METHOD_WIN_H_
#pragma once
#include <windows.h>
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "ui/base/win/ime_input.h"
#include "ui/views/ime/input_method_base.h"
#include "views/view.h"
#include "views/widget/widget.h"
namespace views {
// An InputMethod implementation based on Windows IMM32 API.
class InputMethodWin : public InputMethodBase {
public:
explicit InputMethodWin(internal::InputMethodDelegate* delegate);
virtual ~InputMethodWin();
// Overridden from InputMethod:
virtual void Init(Widget* widget) OVERRIDE;
virtual void OnFocus() OVERRIDE;
virtual void OnBlur() OVERRIDE;
virtual void DispatchKeyEvent(const KeyEvent& key) OVERRIDE;
virtual void OnTextInputTypeChanged(View* view) OVERRIDE;
virtual void OnCaretBoundsChanged(View* view) OVERRIDE;
virtual void CancelComposition(View* view) OVERRIDE;
virtual std::string GetInputLocale() OVERRIDE;
virtual base::i18n::TextDirection GetInputTextDirection() OVERRIDE;
virtual bool IsActive() OVERRIDE;
// Handles IME messages.
LRESULT OnImeMessages(UINT message, WPARAM wparam, LPARAM lparam,
BOOL* handled);
// Message handlers. The native widget is responsible for forwarding following
// messages to the input method.
void OnInputLangChange(DWORD character_set, HKL input_language_id);
private:
LRESULT OnImeSetContext(
UINT message, WPARAM wparam, LPARAM lparam, BOOL* handled);
LRESULT OnImeStartComposition(
UINT message, WPARAM wparam, LPARAM lparam, BOOL* handled);
LRESULT OnImeComposition(
UINT message, WPARAM wparam, LPARAM lparam, BOOL* handled);
LRESULT OnImeEndComposition(
UINT message, WPARAM wparam, LPARAM lparam, BOOL* handled);
LRESULT OnImeRequest(
UINT message, WPARAM wparam, LPARAM lparam, BOOL* handled);
// For both WM_CHAR and WM_SYSCHAR
LRESULT OnChar(
UINT message, WPARAM wparam, LPARAM lparam, BOOL* handled);
// For both WM_DEADCHAR and WM_SYSDEADCHAR
LRESULT OnDeadChar(
UINT message, WPARAM wparam, LPARAM lparam, BOOL* handled);
LRESULT OnDocumentFeed(RECONVERTSTRING *reconv);
LRESULT OnReconvertString(RECONVERTSTRING *reconv);
// Overridden from InputMethodBase.
virtual void OnWillChangeFocus(View* focused_before, View* focused) OVERRIDE;
virtual void OnDidChangeFocus(View* focused_before, View* focused) OVERRIDE;
// A helper function to return the Widget's native window.
HWND hwnd() const { return widget()->GetNativeView(); }
// Asks the client to confirm current composition text.
void ConfirmCompositionText();
// Enables or disables the IME according to the current text input type.
void UpdateIMEState();
// Indicates if the current input locale has an IME.
bool active_;
// Name of the current input locale.
std::string locale_;
// The current input text direction.
base::i18n::TextDirection direction_;
// The new text direction and layout alignment requested by the user by
// pressing ctrl-shift. It'll be sent to the text input client when the key
// is released.
base::i18n::TextDirection pending_requested_direction_;
// Windows IMM32 wrapper.
// (See "ui/base/win/ime_input.h" for its details.)
ui::ImeInput ime_input_;
DISALLOW_COPY_AND_ASSIGN(InputMethodWin);
};
} // namespace views
#endif // UI_VIEWS_IME_INPUT_METHOD_WIN_H_
|
