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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 #ifndef WebInputMethodController_h | 5 #ifndef WebInputMethodController_h |
| 6 #define WebInputMethodController_h | 6 #define WebInputMethodController_h |
| 7 | 7 |
| 8 #include "../platform/WebTextInputInfo.h" | |
| 9 #include "WebCompositionUnderline.h" | 8 #include "WebCompositionUnderline.h" |
| 10 #include "WebTextInputType.h" | |
| 11 #include "WebWidget.h" | 9 #include "WebWidget.h" |
| 12 | 10 |
| 13 namespace blink { | 11 namespace blink { |
| 14 | 12 |
| 15 class WebString; | 13 class WebString; |
| 16 template <typename T> | 14 template <typename T> |
| 17 class WebVector; | 15 class WebVector; |
| 18 | 16 |
| 19 class WebInputMethodController { | 17 class WebInputMethodController { |
| 20 public: | 18 public: |
| 21 enum ConfirmCompositionBehavior { | 19 enum ConfirmCompositionBehavior { |
| 22 DoNotKeepSelection, | 20 DoNotKeepSelection, |
| 23 KeepSelection, | 21 KeepSelection, |
| 24 }; | 22 }; |
| 25 | 23 |
| 26 virtual ~WebInputMethodController() {} | 24 virtual ~WebInputMethodController() {} |
| 27 // Called to inform the WebInputMethodController of a new composition text. | 25 // Called to inform the WebInputMethodController of a new composition text. |
| 28 // If selectionStart and selectionEnd has the same value, then it indicates | 26 // If selectionStart and selectionEnd has the same value, then it indicates |
| 29 // the input caret position. If the text is empty, then the existing | 27 // the input caret position. If the text is empty, then the existing |
| 30 // composition text will be canceled. | 28 // composition text will be canceled. |
| 31 // Returns true if the composition text was set successfully. | 29 // Returns true if the composition text was set successfully. |
| 32 virtual bool setComposition( | 30 virtual bool setComposition( |
| 33 const WebString& text, | 31 const WebString& text, |
| 34 const WebVector<WebCompositionUnderline>& underlines, | 32 const WebVector<WebCompositionUnderline>& underlines, |
| 35 int selectionStart, | 33 int selectionStart, |
| 36 int selectionEnd) = 0; | 34 int selectionEnd) = 0; |
| 37 | 35 |
| 38 // Called to inform the controller that deleting the ongoing composition if | 36 // Called to inform the WebWidget that deleting the ongoing composition if |
| 39 // any, inserting the specified text, and moving the caret according to | 37 // any, inserting the specified text, and moving the caret according to |
| 40 // relativeCaretPosition. | 38 // relativeCaretPosition. |
| 41 virtual bool commitText(const WebString& text, int relativeCaretPosition) = 0; | 39 virtual bool commitText(const WebString& text, int relativeCaretPosition) = 0; |
| 42 | 40 |
| 43 // Called to inform the controller to confirm an ongoing composition. | 41 // Called to inform the WebWidget to confirm an ongoing composition. |
| 44 virtual bool finishComposingText( | 42 virtual bool finishComposingText( |
| 45 ConfirmCompositionBehavior selectionBehavior) = 0; | 43 ConfirmCompositionBehavior selectionBehavior) = 0; |
| 46 | |
| 47 // Returns information about the current text input of this controller. Note | |
| 48 // that this query can be expensive for long fields, as it returns the | |
| 49 // plain-text representation of the current editable element. Consider using | |
| 50 // the lighter-weight textInputType() when appropriate. | |
| 51 virtual WebTextInputInfo textInputInfo() { return WebTextInputInfo(); } | |
| 52 | |
| 53 // Returns the type of current text input of this controller. | |
| 54 virtual WebTextInputType textInputType() { return WebTextInputTypeNone; } | |
| 55 }; | 44 }; |
| 56 | 45 |
| 57 } // namespace blink | 46 } // namespace blink |
| 58 #endif | 47 #endif |
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