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// Copyright 2014 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_ANDROID_JAVA_GIN_JAVA_METHOD_INVOCATION_HELPER_H_
#define CONTENT_BROWSER_ANDROID_JAVA_GIN_JAVA_METHOD_INVOCATION_HELPER_H_
#include <map>
#include "base/android/jni_weak_ref.h"
#include "base/android/scoped_java_ref.h"
#include "base/memory/ref_counted.h"
#include "base/values.h"
#include "content/browser/android/java/gin_java_bound_object.h"
#include "content/browser/android/java/java_type.h"
#include "content/common/android/gin_java_bridge_errors.h"
#include "content/common/content_export.h"
namespace content {
class JavaMethod;
// Instances of this class are created and used on the background thread.
class CONTENT_EXPORT GinJavaMethodInvocationHelper
: public base::RefCountedThreadSafe<GinJavaMethodInvocationHelper> {
public:
class DispatcherDelegate {
public:
DispatcherDelegate() {}
virtual ~DispatcherDelegate() {}
virtual JavaObjectWeakGlobalRef GetObjectWeakRef(
GinJavaBoundObject::ObjectID object_id) = 0;
private:
DISALLOW_COPY_AND_ASSIGN(DispatcherDelegate);
};
class ObjectDelegate {
public:
ObjectDelegate() {}
virtual ~ObjectDelegate() {}
virtual base::android::ScopedJavaLocalRef<jobject> GetLocalRef(
JNIEnv* env) = 0;
virtual base::android::ScopedJavaLocalRef<jclass> GetLocalClassRef(
JNIEnv* env) = 0;
virtual const JavaMethod* FindMethod(const std::string& method_name,
size_t num_parameters) = 0;
virtual bool IsObjectGetClassMethod(const JavaMethod* method) = 0;
virtual const base::android::JavaRef<jclass>& GetSafeAnnotationClass() = 0;
private:
DISALLOW_COPY_AND_ASSIGN(ObjectDelegate);
};
GinJavaMethodInvocationHelper(scoped_ptr<ObjectDelegate> object,
const std::string& method_name,
const base::ListValue& arguments);
void Init(DispatcherDelegate* dispatcher);
void Invoke();
bool HoldsPrimitiveResult();
const base::ListValue& GetPrimitiveResult();
const base::android::JavaRef<jobject>& GetObjectResult();
const base::android::JavaRef<jclass>& GetSafeAnnotationClass();
const GinJavaBridgeError GetInvocationError();
private:
friend class base::RefCountedThreadSafe<GinJavaMethodInvocationHelper>;
~GinJavaMethodInvocationHelper();
void BuildObjectRefsFromListValue(DispatcherDelegate* dispatcher,
const base::Value* list_value);
void BuildObjectRefsFromDictionaryValue(DispatcherDelegate* dispatcher,
const base::Value* dict_value);
bool AppendObjectRef(DispatcherDelegate* dispatcher,
const base::Value* raw_value);
void InvokeMethod(jobject object,
jclass clazz,
const JavaType& return_type,
jmethodID id,
jvalue* parameters);
void SetInvocationError(GinJavaBridgeError error);
void SetPrimitiveResult(const base::ListValue& result_wrapper);
void SetObjectResult(
const base::android::JavaRef<jobject>& object,
const base::android::JavaRef<jclass>& safe_annotation_clazz);
typedef std::map<GinJavaBoundObject::ObjectID,
JavaObjectWeakGlobalRef> ObjectRefs;
scoped_ptr<ObjectDelegate> object_;
const std::string method_name_;
scoped_ptr<base::ListValue> arguments_;
ObjectRefs object_refs_;
bool holds_primitive_result_;
scoped_ptr<base::ListValue> primitive_result_;
GinJavaBridgeError invocation_error_;
base::android::ScopedJavaGlobalRef<jobject> object_result_;
base::android::ScopedJavaGlobalRef<jclass> safe_annotation_clazz_;
DISALLOW_COPY_AND_ASSIGN(GinJavaMethodInvocationHelper);
};
} // namespace content
#endif // CONTENT_BROWSER_ANDROID_JAVA_GIN_JAVA_METHOD_INVOCATION_HELPER_H_
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