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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef ImageBitmap_h | 5 #ifndef ImageBitmap_h |
| 6 #define ImageBitmap_h | 6 #define ImageBitmap_h |
| 7 | 7 |
| 8 #include "bindings/core/v8/ScriptWrappable.h" | 8 #include "bindings/core/v8/ScriptWrappable.h" |
| 9 #include "core/html/HTMLImageElement.h" | 9 #include "core/html/HTMLImageElement.h" |
| 10 #include "core/html/canvas/CanvasImageSource.h" | 10 #include "core/html/canvas/CanvasImageSource.h" |
| 11 #include "platform/geometry/IntRect.h" | 11 #include "platform/geometry/IntRect.h" |
| 12 #include "platform/graphics/Image.h" | 12 #include "platform/graphics/Image.h" |
| 13 #include "platform/heap/Handle.h" | 13 #include "platform/heap/Handle.h" |
| 14 #include "wtf/PassRefPtr.h" | 14 #include "wtf/PassRefPtr.h" |
| 15 #include "wtf/RefCounted.h" | 15 #include "wtf/RefCounted.h" |
| 16 | 16 |
| 17 namespace blink { | 17 namespace blink { |
| 18 | 18 |
| 19 class HTMLCanvasElement; | 19 class HTMLCanvasElement; |
| 20 class HTMLVideoElement; | 20 class HTMLVideoElement; |
| 21 class ImageData; | 21 class ImageData; |
| 22 | 22 |
| 23 class ImageBitmap FINAL : public RefCountedWillBeGarbageCollectedFinalized<Image
Bitmap>, public ScriptWrappable, public ImageLoaderClient, public CanvasImageSou
rce { | 23 class ImageBitmap final : public RefCountedWillBeGarbageCollectedFinalized<Image
Bitmap>, public ScriptWrappable, public ImageLoaderClient, public CanvasImageSou
rce { |
| 24 DEFINE_WRAPPERTYPEINFO(); | 24 DEFINE_WRAPPERTYPEINFO(); |
| 25 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(ImageBitmap); | 25 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(ImageBitmap); |
| 26 public: | 26 public: |
| 27 static PassRefPtrWillBeRawPtr<ImageBitmap> create(HTMLImageElement*, const I
ntRect&); | 27 static PassRefPtrWillBeRawPtr<ImageBitmap> create(HTMLImageElement*, const I
ntRect&); |
| 28 static PassRefPtrWillBeRawPtr<ImageBitmap> create(HTMLVideoElement*, const I
ntRect&); | 28 static PassRefPtrWillBeRawPtr<ImageBitmap> create(HTMLVideoElement*, const I
ntRect&); |
| 29 static PassRefPtrWillBeRawPtr<ImageBitmap> create(HTMLCanvasElement*, const
IntRect&); | 29 static PassRefPtrWillBeRawPtr<ImageBitmap> create(HTMLCanvasElement*, const
IntRect&); |
| 30 static PassRefPtrWillBeRawPtr<ImageBitmap> create(ImageData*, const IntRect&
); | 30 static PassRefPtrWillBeRawPtr<ImageBitmap> create(ImageData*, const IntRect&
); |
| 31 static PassRefPtrWillBeRawPtr<ImageBitmap> create(ImageBitmap*, const IntRec
t&); | 31 static PassRefPtrWillBeRawPtr<ImageBitmap> create(ImageBitmap*, const IntRec
t&); |
| 32 static PassRefPtrWillBeRawPtr<ImageBitmap> create(Image*, const IntRect&); | 32 static PassRefPtrWillBeRawPtr<ImageBitmap> create(Image*, const IntRect&); |
| 33 | 33 |
| 34 PassRefPtr<Image> bitmapImage() const; | 34 PassRefPtr<Image> bitmapImage() const; |
| 35 PassRefPtrWillBeRawPtr<HTMLImageElement> imageElement() const { return m_ima
geElement; } | 35 PassRefPtrWillBeRawPtr<HTMLImageElement> imageElement() const { return m_ima
geElement; } |
| 36 | 36 |
| 37 IntRect bitmapRect() const { return m_bitmapRect; } | 37 IntRect bitmapRect() const { return m_bitmapRect; } |
| 38 | 38 |
| 39 int width() const { return m_cropRect.width(); } | 39 int width() const { return m_cropRect.width(); } |
| 40 int height() const { return m_cropRect.height(); } | 40 int height() const { return m_cropRect.height(); } |
| 41 IntSize size() const { return m_cropRect.size(); } | 41 IntSize size() const { return m_cropRect.size(); } |
| 42 | 42 |
| 43 virtual ~ImageBitmap(); | 43 virtual ~ImageBitmap(); |
| 44 | 44 |
| 45 // CanvasImageSource implementation | 45 // CanvasImageSource implementation |
| 46 virtual PassRefPtr<Image> getSourceImageForCanvas(SourceImageMode, SourceIma
geStatus*) const OVERRIDE; | 46 virtual PassRefPtr<Image> getSourceImageForCanvas(SourceImageMode, SourceIma
geStatus*) const override; |
| 47 virtual bool wouldTaintOrigin(SecurityOrigin*) const OVERRIDE { return false
; }; | 47 virtual bool wouldTaintOrigin(SecurityOrigin*) const override { return false
; }; |
| 48 virtual void adjustDrawRects(FloatRect* srcRect, FloatRect* dstRect) const O
VERRIDE; | 48 virtual void adjustDrawRects(FloatRect* srcRect, FloatRect* dstRect) const o
verride; |
| 49 virtual FloatSize sourceSize() const OVERRIDE; | 49 virtual FloatSize sourceSize() const override; |
| 50 | 50 |
| 51 virtual void trace(Visitor*); | 51 virtual void trace(Visitor*); |
| 52 | 52 |
| 53 private: | 53 private: |
| 54 ImageBitmap(HTMLImageElement*, const IntRect&); | 54 ImageBitmap(HTMLImageElement*, const IntRect&); |
| 55 ImageBitmap(HTMLVideoElement*, const IntRect&); | 55 ImageBitmap(HTMLVideoElement*, const IntRect&); |
| 56 ImageBitmap(HTMLCanvasElement*, const IntRect&); | 56 ImageBitmap(HTMLCanvasElement*, const IntRect&); |
| 57 ImageBitmap(ImageData*, const IntRect&); | 57 ImageBitmap(ImageData*, const IntRect&); |
| 58 ImageBitmap(ImageBitmap*, const IntRect&); | 58 ImageBitmap(ImageBitmap*, const IntRect&); |
| 59 ImageBitmap(Image*, const IntRect&); | 59 ImageBitmap(Image*, const IntRect&); |
| 60 | 60 |
| 61 // ImageLoaderClient | 61 // ImageLoaderClient |
| 62 virtual void notifyImageSourceChanged() OVERRIDE; | 62 virtual void notifyImageSourceChanged() override; |
| 63 virtual bool requestsHighLiveResourceCachePriority() OVERRIDE { return true;
} | 63 virtual bool requestsHighLiveResourceCachePriority() override { return true;
} |
| 64 | 64 |
| 65 // ImageBitmaps constructed from HTMLImageElements hold a reference to the H
TMLImageElement until | 65 // ImageBitmaps constructed from HTMLImageElements hold a reference to the H
TMLImageElement until |
| 66 // the image source changes. | 66 // the image source changes. |
| 67 RefPtrWillBeMember<HTMLImageElement> m_imageElement; | 67 RefPtrWillBeMember<HTMLImageElement> m_imageElement; |
| 68 RefPtr<Image> m_bitmap; | 68 RefPtr<Image> m_bitmap; |
| 69 | 69 |
| 70 IntRect m_bitmapRect; // The rect where the underlying Image should be place
d in reference to the ImageBitmap. | 70 IntRect m_bitmapRect; // The rect where the underlying Image should be place
d in reference to the ImageBitmap. |
| 71 IntRect m_cropRect; | 71 IntRect m_cropRect; |
| 72 | 72 |
| 73 // The offset by which the desired Image is stored internally. | 73 // The offset by which the desired Image is stored internally. |
| 74 // ImageBitmaps constructed from HTMLImageElements reference the entire Imag
eResource and may have a non-zero bitmap offset. | 74 // ImageBitmaps constructed from HTMLImageElements reference the entire Imag
eResource and may have a non-zero bitmap offset. |
| 75 // ImageBitmaps not constructed from HTMLImageElements always pre-crop and s
tore the image at (0, 0). | 75 // ImageBitmaps not constructed from HTMLImageElements always pre-crop and s
tore the image at (0, 0). |
| 76 IntPoint m_bitmapOffset; | 76 IntPoint m_bitmapOffset; |
| 77 | 77 |
| 78 }; | 78 }; |
| 79 | 79 |
| 80 } // namespace blink | 80 } // namespace blink |
| 81 | 81 |
| 82 #endif // ImageBitmap_h | 82 #endif // ImageBitmap_h |
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