OLD | NEW |
1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
(...skipping 13 matching lines...) Expand all Loading... |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #ifndef CustomElementObserver_h | 31 #ifndef CustomElementObserver_h |
32 #define CustomElementObserver_h | 32 #define CustomElementObserver_h |
33 | 33 |
| 34 #include "platform/heap/Handle.h" |
34 #include "wtf/HashMap.h" | 35 #include "wtf/HashMap.h" |
35 | 36 |
36 namespace WebCore { | 37 namespace WebCore { |
37 | 38 |
38 class Element; | 39 class Element; |
39 | 40 |
40 class CustomElementObserver { | 41 class CustomElementObserver : public NoBaseWillBeGarbageCollectedFinalized<Custo
mElementObserver> { |
41 public: | 42 public: |
42 CustomElementObserver() { } | |
43 virtual ~CustomElementObserver() { } | 43 virtual ~CustomElementObserver() { } |
44 | 44 |
45 // API for CustomElement to kick off notifications | 45 // API for CustomElement to kick off notifications |
46 | 46 |
47 static void notifyElementDidFinishParsingChildren(Element*); | 47 static void notifyElementDidFinishParsingChildren(Element*); |
48 static void notifyElementWasDestroyed(Element*); | 48 static void notifyElementWasDestroyed(Element*); |
49 | 49 |
| 50 virtual void trace(Visitor*) { } |
| 51 |
50 protected: | 52 protected: |
| 53 CustomElementObserver() { } |
| 54 |
51 void observe(Element*); | 55 void observe(Element*); |
52 void unobserve(Element*); | 56 void unobserve(Element*); |
53 | 57 |
54 virtual void elementDidFinishParsingChildren(Element*) = 0; | 58 virtual void elementDidFinishParsingChildren(Element*) = 0; |
55 virtual void elementWasDestroyed(Element* element) { unobserve(element); } | 59 virtual void elementWasDestroyed(Element* element) { unobserve(element); } |
56 | |
57 private: | |
58 // Maps elements to the observer watching them. At most one per | |
59 // element at a time. | |
60 typedef HashMap<Element*, CustomElementObserver*> ElementObserverMap; | |
61 static ElementObserverMap& elementObservers(); | |
62 }; | 60 }; |
63 | 61 |
64 } | 62 } |
65 | 63 |
66 #endif // CustomElementObserver_h | 64 #endif // CustomElementObserver_h |
OLD | NEW |