text: // 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_CONTENT_READBACK_HANDLER_H_
  #define CONTENT_BROWSER_ANDROID_CONTENT_READBACK_HANDLER_H_
  
  #include <jni.h>
  
  #include "base/android/jni_weak_ref.h"
  #include "base/callback.h"
  #include "base/memory/weak_ptr.h"
  #include "content/public/browser/readback_types.h"
  
  class SkBitmap;
  
  namespace cc {
  class CopyOutputResult;
  }
  
  namespace content {
  
  // Native side of the ContentReadbackHandler.java, which issues content
  // readbacks from the Java side.
  class ContentReadbackHandler {
   public:
    // Registers the JNI methods for ContentViewRender.
    static bool RegisterContentReadbackHandler(JNIEnv* env);
  
    // Methods called from Java via JNI -----------------------------------------
    ContentReadbackHandler(JNIEnv* env, jobject obj);
    void Destroy(JNIEnv* env, jobject obj);
    void GetContentBitmap(JNIEnv* env,
                          jobject obj,
                          jint readback_id,
                          jfloat scale,
                          jobject config,
                          jfloat x,
                          jfloat y,
                          jfloat width,
                          jfloat height,
                          jobject content_view_core);
    void GetCompositorBitmap(JNIEnv* env,
                             jobject obj,
                             jint readback_id,
                             jlong native_window_android);
  
   private:
    virtual ~ContentReadbackHandler();
  
    void OnFinishReadback(int readback_id,
                          const SkBitmap& bitmap,
                          ReadbackResponse response);
  
    base::android::ScopedJavaGlobalRef<jobject> java_obj_;
    base::WeakPtrFactory<ContentReadbackHandler> weak_factory_;
  
    DISALLOW_COPY_AND_ASSIGN(ContentReadbackHandler);
  };
  
  }  // namespace content
  
  #endif  // CONTENT_BROWSER_ANDROID_CONTENT_READBACK_HANDLER_H_
  