ui/views/ime/input_method_base.cc - Issue 1177503003: Remove the 2-level input method system & InputMethodBridge.

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Issue 1177503003: Remove the 2-level input method system & InputMethodBridge. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: nits. Created 5 years, 5 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 #include "ui/views/ime/input_method_base.h"

6

7 #include "base/logging.h"

8 #include "ui/base/ime/text_input_client.h"

9 #include "ui/events/event.h"

10 #include "ui/views/view.h"

11 #include "ui/views/widget/widget.h"

12

13 namespace views {

14

15 InputMethodBase::InputMethodBase() : delegate_(NULL), widget_(NULL) {}

16

17 InputMethodBase::~InputMethodBase() {

18 DetachFromWidget();

19 }

20

21 void InputMethodBase::SetDelegate(internal::InputMethodDelegate* delegate) {

22 DCHECK(delegate);

23 delegate_ = delegate;

24 }

25

26 void InputMethodBase::Init(Widget* widget) {

27 DCHECK(widget);

28 DCHECK(widget->GetFocusManager());

29 DCHECK(!widget_) << "The input method is already initialized.";

30

31 widget_ = widget;

32 // Alert the InputMethod of the Widget's currently focused view.

33 View* focused = widget->GetFocusManager()->GetFocusedView();

34 if (focused)

35 OnWillChangeFocus(NULL, focused);

36 widget->GetFocusManager()->AddFocusChangeListener(this);

37 }

38

39 views::View* InputMethodBase::GetFocusedView() const {

40 return widget_ ? widget_->GetFocusManager()->GetFocusedView() : NULL;

41 }

42

43 void InputMethodBase::OnTextInputTypeChanged(View* view) {}

44

45 ui::TextInputClient* InputMethodBase::GetTextInputClient() const {

46 return (widget_ && widget_->IsActive() && GetFocusedView()) ?

47 GetFocusedView()->GetTextInputClient() : NULL;

48 }

49

50 ui::TextInputType InputMethodBase::GetTextInputType() const {

51 ui::TextInputClient* client = GetTextInputClient();

52 return client ? client->GetTextInputType() : ui::TEXT_INPUT_TYPE_NONE;

53 }

54

55 void InputMethodBase::OnWillChangeFocus(View* focused_before, View* focused) {}

56

57 void InputMethodBase::OnDidChangeFocus(View* focused_before, View* focused) {}

58

59 bool InputMethodBase::IsViewFocused(View* view) const {

60 return widget_ && widget_->IsActive() && view && GetFocusedView() == view;

61 }

62

63 bool InputMethodBase::IsTextInputTypeNone() const {

64 return GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE;

65 }

66

67 void InputMethodBase::OnInputMethodChanged() const {

68 ui::TextInputClient* client = GetTextInputClient();

69 if (client && client->GetTextInputType() != ui::TEXT_INPUT_TYPE_NONE)

70 client->OnInputMethodChanged();

71 }

72

73 void InputMethodBase::DispatchKeyEventPostIME(const ui::KeyEvent& key) const {

74 if (delegate_)

75 delegate_->DispatchKeyEventPostIME(key);

76 }

77

78 bool InputMethodBase::GetCaretBoundsInWidget(gfx::Rect* rect) const {

79 DCHECK(rect);

80 ui::TextInputClient* client = GetTextInputClient();

81 if (!client \|\| client->GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE)

82 return false;

83

84 gfx::Rect caret_bounds = client->GetCaretBounds();

85 gfx::Point caret_origin = caret_bounds.origin();

86 View::ConvertPointFromScreen(GetFocusedView(), &caret_origin);

87 caret_bounds.set_origin(caret_origin);

88 *rect = GetFocusedView()->ConvertRectToWidget(caret_bounds);

89

90 // Convert coordinates if the focused view is inside a child Widget.

91 if (GetFocusedView()->GetWidget() != widget_)

92 return Widget::ConvertRect(GetFocusedView()->GetWidget(), widget_, rect);

93 return true;

94 }

95

96 void InputMethodBase::DetachFromWidget() {

97 if (!widget_)

98 return;

99

100 widget_->GetFocusManager()->RemoveFocusChangeListener(this);

101 widget_ = NULL;

102 }

103

104 } // namespace views

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