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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 #ifndef CustomElementObserver_h | |
| 32 #define CustomElementObserver_h | |
| 33 | |
| 34 #include "platform/heap/Handle.h" | |
| 35 #include "wtf/HashMap.h" | |
| 36 | |
| 37 namespace blink { | |
| 38 | |
| 39 class Element; | |
| 40 | |
| 41 class CustomElementObserver : public GarbageCollectedFinalized<CustomElementObse
rver> { | |
| 42 public: | |
| 43 virtual ~CustomElementObserver() { } | |
| 44 | |
| 45 // API for CustomElement to kick off notifications | |
| 46 static void notifyElementWasDestroyed(Element*); | |
| 47 | |
| 48 DEFINE_INLINE_VIRTUAL_TRACE() { } | |
| 49 | |
| 50 protected: | |
| 51 CustomElementObserver() { } | |
| 52 | |
| 53 void observe(Element*); | |
| 54 void unobserve(Element*); | |
| 55 | |
| 56 virtual void elementWasDestroyed(Element* element) { unobserve(element); } | |
| 57 }; | |
| 58 | |
| 59 } // namespace blink | |
| 60 | |
| 61 #endif // CustomElementObserver_h | |
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Chromium Code Reviews
Issue 1914923002:
Rename all existing custom element classes as V0 (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master