content/public/browser/android/content_view_core.h

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