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