WebGL support.

Source/WebCore/bindings/dart/custom/DartHTMLCanvasElementCustom.cpp

 // 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
@@ skipping 12 matching lines @@
 // 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 "DartHTMLCanvasElement.h"
 
+#include "CanvasContextAttributes.h"
 #include "CanvasRenderingContext.h"
 #include "CanvasRenderingContext2D.h"
 #include "DartDOMWrapper.h"
 #include "DartCanvasRenderingContext2D.h"
 #if ENABLE(WEBGL)
 #include "DartWebGLRenderingContext.h"
 #endif
 #include "HTMLCanvasElement.h"
 #if ENABLE(WEBGL)
 #include "DartUtilities.h"
+#include "WebGLContextAttributes.h"
 #include "WebGLRenderingContext.h"
 #endif
 
-
 namespace WebCore {
 
 namespace DartHTMLCanvasElementInternal {
 
 void toDataURLCallback(Dart_NativeArguments args)
 {
     DartApiScope dartApiScope;
     Dart_Handle exception;
     {
         HTMLCanvasElement* receiver = DartDOMWrapper::receiver<HTMLCanvasElement>(args);
@@ skipping 26 matching lines @@
     Dart_Handle exception;
     {
         HTMLCanvasElement* receiver = DartDOMWrapper::receiver<HTMLCanvasElement>(args);
 
         const ParameterAdapter< String > contextId(Dart_GetNativeArgument(args, 1));
         if (!contextId.conversionSuccessful()) {
             exception = contextId.exception();
             goto fail;
         }
 
-        // FIXME: implement support for CanvasContextAttributes.
-        CanvasRenderingContext* result = receiver->getContext(contextId, 0);
+        RefPtr<CanvasContextAttributes> attrs;
+#if ENABLE(WEBGL)
+        const String& contextIdStr = contextId;
+        if (contextIdStr == "experimental-webgl" || contextIdStr == "webkit-3d") {
+            attrs = WebGLContextAttributes::create();
+            // FIXME: IDL doesn't mention second argument, but JS
+            // passes map with parameters describing desired context
+            // features.
+        }
+#endif
+        CanvasRenderingContext* result = receiver->getContext(contextId, attrs.get());
         if (!result)
             return;
         if (result->is2d())
             DartDOMWrapper::returnValue(args, static_cast<CanvasRenderingContext2D*>(result));
 #if ENABLE(WEBGL)
         else if (result->is3d())
             DartDOMWrapper::returnValue(args, static_cast<WebGLRenderingContext*>(result));
 #endif
         else
             ASSERT_NOT_REACHED();
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 } // namespace DartHTMLCanvasElementInternal
 
 } // namespace WebCore