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      1 // Copyright (c) 2012 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_PUBLIC_BROWSER_ANDROID_CONTENT_VIEW_CORE_H_
      6 #define CONTENT_PUBLIC_BROWSER_ANDROID_CONTENT_VIEW_CORE_H_
      7 
      8 #include <jni.h>
      9 
     10 #include "base/android/scoped_java_ref.h"
     11 #include "base/callback.h"
     12 #include "content/common/content_export.h"
     13 #include "content/public/browser/navigation_controller.h"
     14 #include "ui/gfx/rect.h"
     15 
     16 class SkBitmap;
     17 
     18 namespace cc {
     19 class Layer;
     20 }
     21 
     22 namespace gfx {
     23 class Size;
     24 class SizeF;
     25 class Vector2dF;
     26 }
     27 
     28 namespace ui {
     29 class ViewAndroid;
     30 class WindowAndroid;
     31 }
     32 
     33 namespace content {
     34 class WebContents;
     35 
     36 // Native side of the ContentViewCore.java, which is the primary way of
     37 // communicating with the native Chromium code on Android.  This is a
     38 // public interface used by native code outside of the content module.
     39 class CONTENT_EXPORT ContentViewCore {
     40  public:
     41   // Returns the existing ContentViewCore for |web_contents|, or NULL.
     42   static ContentViewCore* FromWebContents(WebContents* web_contents);
     43   static ContentViewCore* GetNativeContentViewCore(JNIEnv* env, jobject obj);
     44 
     45   virtual WebContents* GetWebContents() const = 0;
     46   virtual base::android::ScopedJavaLocalRef<jobject> GetJavaObject() = 0;
     47   virtual ui::ViewAndroid* GetViewAndroid() const = 0;
     48   virtual ui::WindowAndroid* GetWindowAndroid() const = 0;
     49   virtual scoped_refptr<cc::Layer> GetLayer() const = 0;
     50   virtual void LoadUrl(NavigationController::LoadURLParams& params) = 0;
     51   virtual void ShowPastePopup(int x, int y) = 0;
     52 
     53   // Request a scaled content readback. The result is passed through the
     54   // callback. The boolean parameter indicates whether the readback was a
     55   // success or not. The content is passed through the SkBitmap parameter.
     56   virtual void GetScaledContentBitmap(
     57       float scale,
     58       jobject bitmap_config,
     59       gfx::Rect src_rect,
     60       const base::Callback<void(bool, const SkBitmap&)>& result_callback) = 0;
     61   virtual float GetDpiScale() const = 0;
     62   virtual void PauseVideo() = 0;
     63   virtual void PauseOrResumeGeolocation(bool should_pause) = 0;
     64   virtual void PauseOrResumeVideoCaptureStream(bool should_pause) = 0;
     65 
     66   // Observer callback for frame metadata updates.
     67   typedef base::Callback<void(
     68       const gfx::SizeF& content_size,
     69       const gfx::Vector2dF& scroll_offset,
     70       float page_scale_factor)> UpdateFrameInfoCallback;
     71 
     72   // Text surrounding selection.
     73   virtual void RequestTextSurroundingSelection(
     74       int max_length,
     75       const base::Callback<void(const base::string16& content,
     76                                 int start_offset,
     77                                 int end_offset)>& callback) = 0;
     78 
     79  protected:
     80   virtual ~ContentViewCore() {};
     81 };
     82 
     83 };  // namespace content
     84 
     85 #endif  // CONTENT_PUBLIC_BROWSER_ANDROID_CONTENT_VIEW_CORE_H_
     86