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      1 /*
      2  * Copyright (C) 2009 Apple 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
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  *
     25  */
     26 
     27 #include "config.h"
     28 #include "core/events/CompositionEvent.h"
     29 
     30 namespace blink {
     31 
     32 CompositionEventInit::CompositionEventInit()
     33 {
     34 }
     35 
     36 CompositionEvent::CompositionEvent()
     37     : m_activeSegmentStart(0)
     38     , m_activeSegmentEnd(0)
     39 {
     40     initializeSegments();
     41 }
     42 
     43 CompositionEvent::CompositionEvent(const AtomicString& type, PassRefPtrWillBeRawPtr<AbstractView> view, const String& data, const Vector<CompositionUnderline>& underlines)
     44     : UIEvent(type, true, true, view, 0)
     45     , m_data(data)
     46     , m_activeSegmentStart(0)
     47     , m_activeSegmentEnd(0)
     48 {
     49     initializeSegments(&underlines);
     50 }
     51 
     52 CompositionEvent::CompositionEvent(const AtomicString& type, const CompositionEventInit& initializer)
     53     : UIEvent(type, initializer)
     54     , m_data(initializer.data)
     55     , m_activeSegmentStart(0)
     56     , m_activeSegmentEnd(0)
     57 {
     58     initializeSegments();
     59 }
     60 
     61 CompositionEvent::~CompositionEvent()
     62 {
     63 }
     64 
     65 void CompositionEvent::initCompositionEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<AbstractView> view, const String& data)
     66 {
     67     if (dispatched())
     68         return;
     69 
     70     initUIEvent(type, canBubble, cancelable, view, 0);
     71 
     72     m_data = data;
     73     initializeSegments();
     74 }
     75 
     76 void CompositionEvent::initializeSegments(const Vector<CompositionUnderline>* underlines)
     77 {
     78     m_activeSegmentStart = 0;
     79     m_activeSegmentEnd = m_data.length();
     80 
     81     if (!underlines || !underlines->size()) {
     82         m_segments.append(0);
     83         return;
     84     }
     85 
     86     for (size_t i = 0; i < underlines->size(); ++i) {
     87         if (underlines->at(i).thick) {
     88             m_activeSegmentStart = underlines->at(i).startOffset;
     89             m_activeSegmentEnd = underlines->at(i).endOffset;
     90             break;
     91         }
     92     }
     93 
     94     for (size_t i = 0; i < underlines->size(); ++i)
     95         m_segments.append(underlines->at(i).startOffset);
     96 }
     97 
     98 const AtomicString& CompositionEvent::interfaceName() const
     99 {
    100     return EventNames::CompositionEvent;
    101 }
    102 
    103 void CompositionEvent::trace(Visitor* visitor)
    104 {
    105     UIEvent::trace(visitor);
    106 }
    107 
    108 } // namespace blink
    109