Source/core/layout/style/StylePendingImage.h - Issue 1045723009: Move core/layout/style to core/style

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Issue 1045723009: Move core/layout/style to core/style (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Created 5 years, 8 months ago

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1 /*

2 * Copyright (C) 2010 Apple 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 * 1. Redistributions of source code must retain the above copyright

8 * notice, this list of conditions and the following disclaimer.

9 * 2. Redistributions in binary form must reproduce the above copyright

10 * notice, this list of conditions and the following disclaimer in the

11 * documentation and/or other materials provided with the distribution.

12 *

13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY

14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR

17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

24 */

25

26 #ifndef StylePendingImage_h

27 #define StylePendingImage_h

28

29 #include "core/css/CSSCursorImageValue.h"

30 #include "core/css/CSSImageGeneratorValue.h"

31 #include "core/css/CSSImageSetValue.h"

32 #include "core/css/CSSImageValue.h"

33 #include "core/layout/style/StyleImage.h"

34 #include "platform/graphics/Image.h"

35

36 namespace blink {

37

38 // StylePendingImage is a placeholder StyleImage that is entered into the Comput edStyle during

39 // style resolution, in order to avoid loading images that are not referenced by the final style.

40 // They should never exist in a ComputedStyle after it has been returned from th e style selector.

41

42 class StylePendingImage final : public StyleImage {

43 public:

44 static PassRefPtr<StylePendingImage> create(CSSValue* value) { return adoptR ef(new StylePendingImage(value)); }

45

46 virtual WrappedImagePtr data() const override { return m_value; }

47

48 virtual PassRefPtrWillBeRawPtr<CSSValue> cssValue() const override { return m_value; }

49 CSSImageValue* cssImageValue() const { return m_value->isImageValue() ? toCS SImageValue(m_value) : 0; }

50 CSSImageGeneratorValue* cssImageGeneratorValue() const { return m_value->isI mageGeneratorValue() ? toCSSImageGeneratorValue(m_value) : 0; }

51 CSSCursorImageValue* cssCursorImageValue() const { return m_value->isCursorI mageValue() ? toCSSCursorImageValue(m_value) : 0; }

52 CSSImageSetValue* cssImageSetValue() const { return m_value->isImageSetValue () ? toCSSImageSetValue(m_value) : 0; }

53

54 virtual LayoutSize imageSize(const LayoutObject, float /multiplier*/) cons t override { return LayoutSize(); }

55 virtual bool imageHasRelativeWidth() const override { return false; }

56 virtual bool imageHasRelativeHeight() const override { return false; }

57 virtual void computeIntrinsicDimensions(const LayoutObject, Length& / intr insicWidth / , Length& / intrinsicHeight /, FloatSize& / intrinsicRatio */) override { }

58 virtual bool usesImageContainerSize() const override { return false; }

59 virtual void setContainerSizeForLayoutObject(const LayoutObject*, const IntS ize&, float) override { }

60 virtual void addClient(LayoutObject*) override { }

61 virtual void removeClient(LayoutObject*) override { }

62 virtual PassRefPtr<Image> image(LayoutObject*, const IntSize&) const overrid e

63 {

64 ASSERT_NOT_REACHED();

65 return nullptr;

66 }

67 virtual bool knownToBeOpaque(const LayoutObject*) const override { return fa lse; }

68

69 private:

70 StylePendingImage(CSSValue* value)

71 : m_value(value)

72 {

73 m_isPendingImage = true;

74 }

75

76 CSSValue* m_value; // Not retained; it owns us.

77 };

78

79 DEFINE_STYLE_IMAGE_TYPE_CASTS(StylePendingImage, isPendingImage());

80

81 }

82 #endif

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