Add JavaBoundObject

content/browser/renderer_host/java_method.h

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONTENT_BROWSER_RENDERER_HOST_JAVA_METHOD_H_
+#define CONTENT_BROWSER_RENDERER_HOST_JAVA_METHOD_H_
+
+#if defined(ENABLE_JAVA_BRIDGE)

[jam, 2011/11/10 17:30:20]

ditto

+
+#include <jni.h>
+#include <string>
+#include <vector>
+
+#include "base/android/scoped_java_ref.h"
+
+struct JavaType {
+  enum Type {
+    TypeBoolean,
+    TypeByte,
+    TypeChar,
+    TypeShort,
+    TypeInt,
+    TypeLong,
+    TypeFloat,
+    TypeDouble,
+    // This is only used as a return type, so we should never convert from
+    // JavaScript with this type.
+    TypeVoid,
+    TypeArray,
+    // We special-case strings, as they get special handling when coercing.
+    TypeString,
+    TypeObject,
+  };
+};
+
+// A wrapper around java.lang.reflect.Method. This class is not threadsafe. It
+// must be used on a single thread only.
+class JavaMethod {
+ public:
+  explicit JavaMethod(const base::android::JavaRef<jobject>& method);
+
+  std::string name() const;
+  size_t num_parameters() const;
+  JavaType::Type parameter_type(size_t index) const;
+  JavaType::Type return_type() const;
+  jmethodID id() const;
+
+ private:
+  void EnsureNumParametersIsSetUp();
+  void EnsureTypesAndIDAreSetUp();
+
+  std::string name_;
+  base::android::ScopedJavaGlobalRef<jobject> java_method_;
+  bool have_calculated_num_parameters_;
+  size_t num_parameters_;
+  std::vector<JavaType::Type> parameter_types_;
+  JavaType::Type return_type_;
+  jmethodID id_;
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(JavaMethod);
+};
+
+
+#endif  // defined(ENABLE_JAVA_BRIDGE)
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_JAVA_METHOD_H_