1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_ANDROID_H_ 6 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_ANDROID_H_ 7 8 #include <jni.h> 9 10 #include "base/android/scoped_java_ref.h" 11 #include "base/basictypes.h" 12 #include "base/compiler_specific.h" 13 #include "content/common/content_export.h" 14 15 namespace content { 16 17 class NavigationController; 18 19 // Android wrapper around NavigationController that provides safer passage 20 // from java and back to native and provides java with a means of communicating 21 // with its native counterpart. 22 class CONTENT_EXPORT NavigationControllerAndroid { 23 public: 24 static bool Register(JNIEnv* env); 25 26 explicit NavigationControllerAndroid( 27 NavigationController* navigation_controller); 28 ~NavigationControllerAndroid(); 29 navigation_controller()30 NavigationController* navigation_controller() const { 31 return navigation_controller_; 32 } 33 34 base::android::ScopedJavaLocalRef<jobject> GetJavaObject(); 35 36 jboolean CanGoBack(JNIEnv* env, jobject obj); 37 jboolean CanGoForward(JNIEnv* env, jobject obj); 38 jboolean CanGoToOffset(JNIEnv* env, jobject obj, jint offset); 39 void GoBack(JNIEnv* env, jobject obj); 40 void GoForward(JNIEnv* env, jobject obj); 41 void GoToOffset(JNIEnv* env, jobject obj, jint offset); 42 void GoToNavigationIndex(JNIEnv* env, jobject obj, jint index); 43 44 private: 45 NavigationController* navigation_controller_; 46 base::android::ScopedJavaGlobalRef<jobject> obj_; 47 48 DISALLOW_COPY_AND_ASSIGN(NavigationControllerAndroid); 49 }; 50 51 } // namespace content 52 53 #endif // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_ANDROID_H_ 54