Import Dart bindings as of Blink r188698. This merely copies the files over and does not attach any…

sky/engine/bindings-dart/core/dart/custom/DartCanvasRenderingContext2DCustom.cpp

Index: sky/engine/bindings-dart/core/dart/custom/DartCanvasRenderingContext2DCustom.cpp
diff --git a/sky/engine/bindings-dart/core/dart/custom/DartCanvasRenderingContext2DCustom.cpp b/sky/engine/bindings-dart/core/dart/custom/DartCanvasRenderingContext2DCustom.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..6ed01f65c5d21c4f073bb650dbc6b777ab0ed8a4
--- /dev/null
+++ b/sky/engine/bindings-dart/core/dart/custom/DartCanvasRenderingContext2DCustom.cpp
@@ -0,0 +1,142 @@
+// Copyright 2011, 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
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+#include "bindings/core/dart/DartCanvasRenderingContext2D.h"
+
+#include "bindings/core/dart/DartCanvasGradient.h"
+#include "bindings/core/dart/DartCanvasPattern.h"
+#include "bindings/core/dart/DartDOMWrapper.h"
+#include "core/html/canvas/CanvasRenderingContext2D.h"
+#include "core/html/canvas/CanvasStyle.h"
+
+namespace blink {
+
+namespace DartCanvasRenderingContext2DInternal {
+
+static void canvasStyleReturnToDartValue(Dart_NativeArguments args, CanvasStyle* style)
+{
+    if (style->canvasGradient()) {
+        DartCanvasGradient::returnToDart(args, style->canvasGradient());
+        return;
+    }
+
+    if (style->canvasPattern()) {
+        DartCanvasPattern::returnToDart(args, style->canvasPattern());
+        return;
+    }
+
+    DartUtilities::setDartStringReturnValue(args, style->color());
+}
+
+static PassRefPtr<CanvasStyle> toCanvasStyle(Dart_Handle value)
+{
+    Dart_Handle exception = 0;
+    if (DartDOMWrapper::subtypeOf(value, DartCanvasGradient::dartClassId))
+        return CanvasStyle::createFromGradient(DartCanvasGradient::toNativeWithNullCheck(value, exception));
+
+    if (DartDOMWrapper::subtypeOf(value, DartCanvasPattern::dartClassId))
+        return CanvasStyle::createFromPattern(DartCanvasPattern::toNativeWithNullCheck(value, exception));
+
+    return nullptr;
+}
+
+void strokeStyleGetter(Dart_NativeArguments args )
+{
+    {
+        CanvasRenderingContext2D* receiver = DartDOMWrapper::receiver<CanvasRenderingContext2D>(args);
+
+        canvasStyleReturnToDartValue(args, receiver->strokeStyle());
+        return;
+    }
+}
+
+void strokeStyleSetter(Dart_NativeArguments args)
+{
+    Dart_Handle exception = 0;
+    {
+        CanvasRenderingContext2D* receiver = DartDOMWrapper::receiver<CanvasRenderingContext2D>(args);
+
+        Dart_Handle arg = Dart_GetNativeArgument(args, 1);
+        if (Dart_IsString(arg)) {
+            DartStringAdapter color = DartUtilities::dartToString(args, 1, exception);
+            if (exception)
+                goto fail;
+
+            receiver->setStrokeColor(color);
+            return;
+        }
+
+        receiver->setStrokeStyle(toCanvasStyle(arg));
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+void fillStyleGetter(Dart_NativeArguments args)
+{
+    {
+        CanvasRenderingContext2D* receiver = DartDOMWrapper::receiver<CanvasRenderingContext2D>(args);
+
+        canvasStyleReturnToDartValue(args, receiver->fillStyle());
+        return;
+    }
+}
+
+void fillStyleSetter(Dart_NativeArguments args)
+{
+    Dart_Handle exception = 0;
+    {
+        CanvasRenderingContext2D* receiver = DartDOMWrapper::receiver<CanvasRenderingContext2D>(args);
+
+        Dart_Handle arg = Dart_GetNativeArgument(args, 1);
+        if (Dart_IsString(arg)) {
+            DartStringAdapter color = DartUtilities::dartToString(arg, exception);
+            if (exception)
+                goto fail;
+
+            receiver->setFillColor(color);
+            return;
+        }
+
+        receiver->setFillStyle(toCanvasStyle(arg));
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+} // namespace DartCanvasRenderingContext2DInternal
+
+} // namespace blink