Dart bindings for WebKit

Source/WebCore/bindings/dart/DartCallback.h

+/*
+ * Copyright (C) 2006-2011 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.
+ */
+
+#ifndef DartCallback_h
+#define DartCallback_h
+
+#include "DartIsolateState.h"
+#include "DartUtilities.h"
+
+#include <dart_api.h>
+
+namespace WebCore {
+
+class DartCallback {
+public:
+    DartCallback(Dart_Handle object, Dart_Handle& exception);
+
+    ~DartCallback();
+
+    template <class WebKitType>
+    bool handleEvent(WebKitType argument)
+    {
+        DartIsolateState::Scope scope(m_isolate);
+        DartApiScope apiScope;
+
+        Dart_Handle arguments[] = {
+            toDartValue(argument)
+        };
+        return handleEventInternal(arguments, 1);
+    }
+
+    template <class WebKitType1, class WebKitType2>
+    bool handleEvent(WebKitType1 argument1, WebKitType2 argument2)
+    {
+        DartIsolateState::Scope scope(m_isolate);
+        DartApiScope apiScope;
+
+        Dart_Handle arguments[] = {
+            toDartValue(argument1),
+            toDartValue(argument2)
+        };
+        return handleEventInternal(arguments, 2);
+    }
+
+    template <class WebKitType1, class WebKitType2, class WebKitType3>
+    bool handleEvent(WebKitType1 argument1, WebKitType2 argument2, WebKitType3 argument3)
+    {
+        DartIsolateState::Scope scope(m_isolate);
+        DartApiScope apiScope;
+
+        Dart_Handle arguments[] = {
+            toDartValue(argument1),
+            toDartValue(argument2),
+            toDartValue(argument3)
+        };
+        return handleEventInternal(arguments, 3);
+    }
+
+private:
+    bool handleEventInternal(Dart_Handle* argv, int argc);
+
+    Dart_Isolate m_isolate;
+    Dart_Handle m_callback;
+};
+
+}
+
+#endif // DartCallback_h