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      1 /*
      2  * Copyright (C) 2009 Google Inc. All rights reserved.
      3  * Copyright (C) 2010 Apple Inc. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  *     * Redistributions of source code must retain the above copyright
     10  * notice, this list of conditions and the following disclaimer.
     11  *     * Redistributions in binary form must reproduce the above
     12  * copyright notice, this list of conditions and the following disclaimer
     13  * in the documentation and/or other materials provided with the
     14  * distribution.
     15  *     * Neither the name of Google Inc. nor the names of its
     16  * contributors may be used to endorse or promote products derived from
     17  * this software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include "config.h"
     33 #include "core/html/HTMLDataListElement.h"
     34 
     35 #include "core/HTMLNames.h"
     36 #include "core/dom/IdTargetObserverRegistry.h"
     37 #include "core/frame/UseCounter.h"
     38 
     39 namespace WebCore {
     40 
     41 inline HTMLDataListElement::HTMLDataListElement(Document& document)
     42     : HTMLElement(HTMLNames::datalistTag, document)
     43 {
     44     ScriptWrappable::init(this);
     45 }
     46 
     47 PassRefPtrWillBeRawPtr<HTMLDataListElement> HTMLDataListElement::create(Document& document)
     48 {
     49     UseCounter::count(document, UseCounter::DataListElement);
     50     return adoptRefWillBeNoop(new HTMLDataListElement(document));
     51 }
     52 
     53 PassRefPtrWillBeRawPtr<HTMLCollection> HTMLDataListElement::options()
     54 {
     55     return ensureCachedHTMLCollection(DataListOptions);
     56 }
     57 
     58 void HTMLDataListElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
     59 {
     60     HTMLElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
     61     if (!changedByParser)
     62         treeScope().idTargetObserverRegistry().notifyObservers(getIdAttribute());
     63 }
     64 
     65 void HTMLDataListElement::finishParsingChildren()
     66 {
     67     treeScope().idTargetObserverRegistry().notifyObservers(getIdAttribute());
     68 }
     69 
     70 void HTMLDataListElement::optionElementChildrenChanged()
     71 {
     72     treeScope().idTargetObserverRegistry().notifyObservers(getIdAttribute());
     73 }
     74 
     75 } // namespace WebCore
     76