Source/core/css/MediaQueryMatcher.h - Issue 369423002: Have srcset respond to viewport changes

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Issue 369423002: Have srcset respond to viewport changes (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Self review nits Created 6 years, 5 months ago

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1 /*	1 /*

2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)	2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)

3 *	3 *

4 * This library is free software; you can redistribute it and/or	4 * This library is free software; you can redistribute it and/or

5 * modify it under the terms of the GNU Library General Public	5 * modify it under the terms of the GNU Library General Public

6 * License as published by the Free Software Foundation; either	6 * License as published by the Free Software Foundation; either

7 * version 2 of the License, or (at your option) any later version.	7 * version 2 of the License, or (at your option) any later version.

8 *	8 *

9 * This library is distributed in the hope that it will be useful,	9 * This library is distributed in the hope that it will be useful,

10 * but WITHOUT ANY WARRANTY; without even the implied warranty of	10 * but WITHOUT ANY WARRANTY; without even the implied warranty of

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40	40

41 class MediaQueryMatcher FINAL : public RefCountedWillBeGarbageCollectedFinalized <MediaQueryMatcher> {	41 class MediaQueryMatcher FINAL : public RefCountedWillBeGarbageCollectedFinalized <MediaQueryMatcher> {

42 DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(MediaQueryMatcher)	42 DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(MediaQueryMatcher)

43 public:	43 public:

44 static PassRefPtrWillBeRawPtr<MediaQueryMatcher> create(Document&);	44 static PassRefPtrWillBeRawPtr<MediaQueryMatcher> create(Document&);

45 void documentDetached();	45 void documentDetached();

46	46

47 void addMediaQueryList(MediaQueryList*);	47 void addMediaQueryList(MediaQueryList*);

48 void removeMediaQueryList(MediaQueryList*);	48 void removeMediaQueryList(MediaQueryList*);

49	49

	50 void addViewportListener(MediaQueryListListener*);

	51 void removeViewportListener(MediaQueryListListener*);

	52

50 PassRefPtrWillBeRawPtr<MediaQueryList> matchMedia(const String&);	53 PassRefPtrWillBeRawPtr<MediaQueryList> matchMedia(const String&);

51	54

52 void mediaFeaturesChanged();	55 void mediaFeaturesChanged();

	56 void viewportChanged();

53 bool evaluate(const MediaQuerySet*);	57 bool evaluate(const MediaQuerySet*);

54	58

55 void trace(Visitor*);	59 void trace(Visitor*);

56	60

57 private:	61 private:

58 explicit MediaQueryMatcher(Document&);	62 explicit MediaQueryMatcher(Document&);

59	63

60 PassOwnPtr<MediaQueryEvaluator> createEvaluator() const;	64 PassOwnPtr<MediaQueryEvaluator> createEvaluator() const;

61	65

62 RawPtrWillBeMember<Document> m_document;	66 RawPtrWillBeMember<Document> m_document;

63 OwnPtr<MediaQueryEvaluator> m_evaluator;	67 OwnPtr<MediaQueryEvaluator> m_evaluator;

64	68

65 typedef WillBeHeapLinkedHashSet<RawPtrWillBeWeakMember<MediaQueryList> > Med iaQueryListSet;	69 typedef WillBeHeapLinkedHashSet<RawPtrWillBeWeakMember<MediaQueryList> > Med iaQueryListSet;

66 MediaQueryListSet m_mediaLists;	70 MediaQueryListSet m_mediaLists;

	71

	72 typedef WillBeHeapLinkedHashSet<RawPtrWillBeWeakMember<MediaQueryListListene r> > ViewportListenerSet;

	73 ViewportListenerSet m_viewportListeners;

67 };	74 };

68	75

69 }	76 }

70	77

71 #endif // MediaQueryMatcher_h	78 #endif // MediaQueryMatcher_h

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