content_view_core.h revision 1320f92c476a1ad9d19dba2a48c72b75566198e9 
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 "third_party/skia/include/core/SkImageInfo.h"
15#include "ui/gfx/rect.h"
16
17class SkBitmap;
18
19namespace cc {
20class Layer;
21}
22
23namespace gfx {
24class Size;
25class SizeF;
26class Vector2dF;
27}
28
29namespace ui {
30class ViewAndroid;
31class WindowAndroid;
32}
33
34namespace content {
35class WebContents;
36
37// Native side of the ContentViewCore.java, which is the primary way of
38// communicating with the native Chromium code on Android.  This is a
39// public interface used by native code outside of the content module.
40class CONTENT_EXPORT ContentViewCore {
41 public:
42  // Returns the existing ContentViewCore for |web_contents|, or NULL.
43  static ContentViewCore* FromWebContents(WebContents* web_contents);
44  static ContentViewCore* GetNativeContentViewCore(JNIEnv* env, jobject obj);
45
46  virtual WebContents* GetWebContents() const = 0;
47  virtual base::android::ScopedJavaLocalRef<jobject> GetJavaObject() = 0;
48  virtual ui::ViewAndroid* GetViewAndroid() const = 0;
49  virtual ui::WindowAndroid* GetWindowAndroid() const = 0;
50  virtual scoped_refptr<cc::Layer> GetLayer() const = 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      SkColorType color_type,
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 PauseOrResumeGeolocation(bool should_pause) = 0;
63
64  // Observer callback for frame metadata updates.
65  typedef base::Callback<void(
66      const gfx::SizeF& content_size,
67      const gfx::Vector2dF& scroll_offset,
68      float page_scale_factor)> UpdateFrameInfoCallback;
69
70  // Text surrounding selection.
71  virtual void RequestTextSurroundingSelection(
72      int max_length,
73      const base::Callback<void(const base::string16& content,
74                                int start_offset,
75                                int end_offset)>& callback) = 0;
76
77 protected:
78  virtual ~ContentViewCore() {};
79};
80
81};  // namespace content
82
83#endif  // CONTENT_PUBLIC_BROWSER_ANDROID_CONTENT_VIEW_CORE_H_
84