Support currentTransform in 2D Canvas.

Source/bindings/v8/custom/V8CanvasRenderingContext2DCustom.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #include "config.h"
 #include "V8CanvasRenderingContext2D.h"
 
 #include "V8CanvasGradient.h"
 #include "V8CanvasPattern.h"
 #include "V8HTMLCanvasElement.h"
 #include "V8HTMLImageElement.h"
 #include "V8HTMLVideoElement.h"
 #include "V8ImageData.h"
+#include "bindings/V8SVGMatrix.h"
 #include "bindings/v8/V8Binding.h"
 #include "core/html/canvas/CanvasGradient.h"
 #include "core/html/canvas/CanvasPattern.h"
 #include "core/html/canvas/CanvasRenderingContext2D.h"
 #include "core/html/canvas/CanvasStyle.h"
 #include "core/platform/graphics/FloatRect.h"
 
 namespace WebCore {
 
 static v8::Handle<v8::Value> toV8Object(CanvasStyle* style, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
@@ skipping 11 matching lines @@
 {
     if (V8CanvasGradient::HasInstance(value, isolate, worldType(isolate)))
         return CanvasStyle::createFromGradient(V8CanvasGradient::toNative(v8::Handle<v8::Object>::Cast(value)));
 
     if (V8CanvasPattern::HasInstance(value, isolate, worldType(isolate)))
         return CanvasStyle::createFromPattern(V8CanvasPattern::toNative(v8::Handle<v8::Object>::Cast(value)));
 
     return 0;
 }
 
+void V8CanvasRenderingContext2D::currentTransformAttributeGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
+{
+    CanvasRenderingContext2D* imp = V8CanvasRenderingContext2D::toNative(info.Holder());
+    v8SetReturnValue(info, toV8(SVGPropertyTearOff<SVGMatrix>::create(imp->currentTransform()), info.Holder(), info.GetIsolate()));
+}
+
+void V8CanvasRenderingContext2D::currentTransformAttributeSetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
+{
+    CanvasRenderingContext2D* imp = V8CanvasRenderingContext2D::toNative(info.Holder());
+    V8TRYCATCH_VOID(RefPtr<SVGPropertyTearOff<SVGMatrix> >, v, V8SVGMatrix::HasInstance(value, info.GetIsolate(), worldType(info.GetIsolate())) ? V8SVGMatrix::toNative(v8::Handle<v8::Object>::Cast(value)) : 0);
+    if (!v) {
+        throwTypeError(info.GetIsolate());
+        return;
+    }
+    imp->setCurrentTransform(WTF::getPtr(v)->propertyReference());
+}
+
 void V8CanvasRenderingContext2D::strokeStyleAttributeGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     CanvasRenderingContext2D* impl = V8CanvasRenderingContext2D::toNative(info.Holder());
     v8SetReturnValue(info, toV8Object(impl->strokeStyle(), info.Holder(), info.GetIsolate()));
 }
 
 void V8CanvasRenderingContext2D::strokeStyleAttributeSetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
 {
     CanvasRenderingContext2D* impl = V8CanvasRenderingContext2D::toNative(info.Holder());
     if (value->IsString())
@@ skipping 11 matching lines @@
 void V8CanvasRenderingContext2D::fillStyleAttributeSetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
 {
     CanvasRenderingContext2D* impl = V8CanvasRenderingContext2D::toNative(info.Holder());
     if (value->IsString())
         impl->setFillColor(toWebCoreString(value.As<v8::String>()));
     else
         impl->setFillStyle(toCanvasStyle(value, info.GetIsolate()));
 }
 
 } // namespace WebCore