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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
      6  * are met:
      7  *
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer
     12  *    in the documentation and/or other materials provided with the
     13  *    distribution.
     14  * 3. Neither the name of Google Inc. nor the names of its contributors
     15  *    may be used to endorse or promote products derived from this
     16  *    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 #include "config.h"
     32 #include "core/dom/custom/CustomElementObserver.h"
     33 
     34 namespace WebCore {
     35 
     36 CustomElementObserver::ElementObserverMap& CustomElementObserver::elementObservers()
     37 {
     38     DEFINE_STATIC_LOCAL(ElementObserverMap, map, ());
     39     return map;
     40 }
     41 
     42 void CustomElementObserver::notifyElementDidFinishParsingChildren(Element* element)
     43 {
     44     ElementObserverMap::iterator it = elementObservers().find(element);
     45     if (it == elementObservers().end())
     46         return;
     47     it->value->elementDidFinishParsingChildren(element);
     48 }
     49 
     50 void CustomElementObserver::notifyElementWasDestroyed(Element* element)
     51 {
     52     ElementObserverMap::iterator it = elementObservers().find(element);
     53     if (it == elementObservers().end())
     54         return;
     55     it->value->elementWasDestroyed(element);
     56 }
     57 
     58 void CustomElementObserver::observe(Element* element)
     59 {
     60     ElementObserverMap::AddResult result = elementObservers().add(element, this);
     61     ASSERT_UNUSED(result, result.isNewEntry);
     62 }
     63 
     64 void CustomElementObserver::unobserve(Element* element)
     65 {
     66     CustomElementObserver* observer = elementObservers().take(element);
     67     ASSERT_UNUSED(observer, observer == this);
     68 }
     69 
     70 } // namespace WebCore
     71