content/browser/android/content_readback_handler.h

   1 // Copyright 2014 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_ANDROID_CONTENT_READBACK_HANDLER_H_
   6 #define CONTENT_BROWSER_ANDROID_CONTENT_READBACK_HANDLER_H_
   7
   8 #include <jni.h>
   9
  10 #include "base/android/jni_weak_ref.h"
  11 #include "base/callback.h"
  12 #include "base/memory/weak_ptr.h"
  13
  14 class SkBitmap;
  15
  16 namespace cc {
  17 class CopyOutputResult;
  18 }
  19
  20 namespace content {
  21
  22 // Native side of the ContentReadbackHandler.java, which issues content
  23 // readbacks from the Java side.
  24 class ContentReadbackHandler {
  25  public:
  26   // Registers the JNI methods for ContentViewRender.
  27   static bool RegisterContentReadbackHandler(JNIEnv* env);
  28
  29   // Methods called from Java via JNI -----------------------------------------
  30   ContentReadbackHandler(JNIEnv* env, jobject obj);
  31   void Destroy(JNIEnv* env, jobject obj);
  32   void GetContentBitmap(JNIEnv* env,
  33                         jobject obj,
  34                         jint readback_id,
  35                         jfloat scale,
  36                         jobject config,
  37                         jfloat x,
  38                         jfloat y,
  39                         jfloat width,
  40                         jfloat height,
  41                         jobject content_view_core);
  42   void GetCompositorBitmap(JNIEnv* env,
  43                            jobject obj,
  44                            jint readback_id,
  45                            jlong native_window_android);
  46
  47  private:
  48   virtual ~ContentReadbackHandler();
  49
  50   void OnFinishReadback(int readback_id,
  51                         bool success,
  52                         const SkBitmap& bitmap);
  53
  54   base::android::ScopedJavaGlobalRef<jobject> java_obj_;
  55   base::WeakPtrFactory<ContentReadbackHandler> weak_factory_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(ContentReadbackHandler);
  58 };
  59
  60 }  // namespace content
  61
  62 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_READBACK_HANDLER_H_