| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CSSPaintImageGenerator_h |
| #define CSSPaintImageGenerator_h |
| |
| #include "core/CSSPropertyNames.h" |
| #include "core/CoreExport.h" |
| #include "platform/geometry/IntSize.h" |
| #include "platform/heap/Handle.h" |
| |
| namespace blink { |
| |
| class Document; |
| class Image; |
| |
| // Produces a PaintGeneratedImage from a CSS Paint API callback. |
| // https://drafts.css-houdini.org/css-paint-api/ |
| class CORE_EXPORT CSSPaintImageGenerator : public GarbageCollectedFinalized<CSSPaintImageGenerator> { |
| public: |
| // This observer is used if the paint worklet doesn't have a javascript |
| // class registered with the correct name yet. |
| // paintImageGeneratorReady is called when the javascript class is |
| // registered and ready to use. |
| class Observer : public GarbageCollectedFinalized<Observer> { |
| public: |
| virtual ~Observer() { }; |
| virtual void paintImageGeneratorReady() = 0; |
| DEFINE_INLINE_VIRTUAL_TRACE() { } |
| }; |
| |
| static CSSPaintImageGenerator* create(const String& name, Document&, Observer*); |
| virtual ~CSSPaintImageGenerator(); |
| |
| typedef CSSPaintImageGenerator* (*CSSPaintImageGeneratorCreateFunction)(const String&, Document&, Observer*); |
| static void init(CSSPaintImageGeneratorCreateFunction); |
| |
| // Invokes the CSS Paint API 'paint' callback. May return a nullptr |
| // representing an invalid image if an error occurred. |
| virtual PassRefPtr<Image> paint(const IntSize&) = 0; |
| |
| virtual const Vector<CSSPropertyID>& nativeInvalidationProperties() const = 0; |
| virtual const Vector<AtomicString>& customInvalidationProperties() const = 0; |
| |
| DEFINE_INLINE_VIRTUAL_TRACE() { } |
| }; |
| |
| } // namespace blink |
| |
| #endif // CSSPaintImageGenerator_h |