1 files changed, 67 insertions, 0 deletions
diff --git a/dom/canvas/CanvasGradient.h b/dom/canvas/CanvasGradient.h
new file mode 100644
index 0000000000..1ef78a6872
--- /dev/null
+++ b/dom/canvas/CanvasGradient.h
@@ -0,0 +1,67 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_CanvasGradient_h
+#define mozilla_dom_CanvasGradient_h
+
+#include "nsTArray.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/dom/CanvasRenderingContext2DBinding.h"
+#include "mozilla/gfx/2D.h"
+#include "nsWrapperCache.h"
+#include "gfxGradientCache.h"
+
+namespace mozilla {
+namespace dom {
+
+class CanvasRenderingContext2D;
+
+class CanvasGradient : public nsWrapperCache {
+ public:
+  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(CanvasGradient)
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(CanvasGradient)
+
+  enum class Type : uint8_t { LINEAR = 0, RADIAL, CONIC };
+
+  Type GetType() { return mType; }
+
+  mozilla::gfx::GradientStops* GetGradientStopsForTarget(
+      mozilla::gfx::DrawTarget* aRT) {
+    if (mStops && mStops->GetBackendType() == aRT->GetBackendType()) {
+      return mStops;
+    }
+
+    mStops = gfx::gfxGradientCache::GetOrCreateGradientStops(
+        aRT, mRawStops, gfx::ExtendMode::CLAMP);
+
+    return mStops;
+  }
+
+  // WebIDL
+  void AddColorStop(float offset, const nsACString& colorstr, ErrorResult& rv);
+
+  JSObject* WrapObject(JSContext* aCx,
+                       JS::Handle<JSObject*> aGivenProto) override {
+    return CanvasGradient_Binding::Wrap(aCx, this, aGivenProto);
+  }
+
+  CanvasRenderingContext2D* GetParentObject() { return mContext; }
+
+ protected:
+  friend struct CanvasBidiProcessor;
+
+  CanvasGradient(CanvasRenderingContext2D* aContext, Type aType);
+
+  virtual ~CanvasGradient();
+
+  RefPtr<CanvasRenderingContext2D> mContext;
+  nsTArray<mozilla::gfx::GradientStop> mRawStops;
+  RefPtr<mozilla::gfx::GradientStops> mStops;
+  Type mType;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_CanvasGradient_h