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| 1 /* | |
| 2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #ifndef InputMethodContext_h | |
| 32 #define InputMethodContext_h | |
| 33 | |
| 34 #include "core/CoreExport.h" | |
| 35 #include "core/editing/CompositionUnderline.h" | |
| 36 #include "core/events/EventTarget.h" | |
| 37 #include "core/html/HTMLElement.h" | |
| 38 #include "wtf/PassOwnPtr.h" | |
| 39 #include "wtf/RefPtr.h" | |
| 40 #include "wtf/text/AtomicString.h" | |
| 41 #include "wtf/text/WTFString.h" | |
| 42 | |
| 43 namespace blink { | |
| 44 | |
| 45 class ExecutionContext; | |
| 46 class InputMethodController; | |
| 47 | |
| 48 class CORE_EXPORT InputMethodContext final : public EventTargetWithInlineData { | |
| 49 DEFINE_WRAPPERTYPEINFO(); | |
| 50 public: | |
| 51 static PassOwnPtrWillBeRawPtr<InputMethodContext> create(HTMLElement*); | |
| 52 virtual ~InputMethodContext(); | |
| 53 | |
| 54 #if !ENABLE(OILPAN) | |
| 55 void ref() { m_element->ref(); } | |
| 56 void deref() { m_element->deref(); } | |
| 57 #endif | |
| 58 | |
| 59 String locale() const; | |
| 60 HTMLElement* target() const; | |
| 61 unsigned compositionStartOffset(); | |
| 62 unsigned compositionEndOffset(); | |
| 63 void confirmComposition(); | |
| 64 | |
| 65 String compositionText() const; | |
| 66 int selectionStart() const; | |
| 67 int selectionEnd() const; | |
| 68 const Vector<unsigned>& segments(); | |
| 69 | |
| 70 virtual const AtomicString& interfaceName() const override; | |
| 71 virtual ExecutionContext* executionContext() const override; | |
| 72 | |
| 73 DEFINE_ATTRIBUTE_EVENT_LISTENER(candidatewindowshow); | |
| 74 DEFINE_ATTRIBUTE_EVENT_LISTENER(candidatewindowupdate); | |
| 75 DEFINE_ATTRIBUTE_EVENT_LISTENER(candidatewindowhide); | |
| 76 | |
| 77 void dispatchCandidateWindowShowEvent(); | |
| 78 void dispatchCandidateWindowUpdateEvent(); | |
| 79 void dispatchCandidateWindowHideEvent(); | |
| 80 | |
| 81 DECLARE_VIRTUAL_TRACE(); | |
| 82 | |
| 83 private: | |
| 84 InputMethodContext(HTMLElement*); | |
| 85 bool hasFocus() const; | |
| 86 CompositionUnderline selectedSegment() const; | |
| 87 InputMethodController& inputMethodController() const; | |
| 88 | |
| 89 #if !ENABLE(OILPAN) | |
| 90 virtual void refEventTarget() override { ref(); } | |
| 91 virtual void derefEventTarget() override { deref(); } | |
| 92 #endif | |
| 93 | |
| 94 RawPtrWillBeMember<HTMLElement> m_element; | |
| 95 Vector<unsigned> m_segments; | |
| 96 }; | |
| 97 | |
| 98 } // namespace blink | |
| 99 | |
| 100 #endif // InputMethodContext_h | |
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