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 ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_CLIENT_H_
6#define ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_CLIENT_H_
7
8#include "base/android/scoped_java_ref.h"
9#include "ui/gfx/geometry/point.h"
10#include "ui/gfx/geometry/size_f.h"
11#include "ui/gfx/geometry/vector2d_f.h"
12
13namespace android_webview {
14
15class BrowserViewRendererClient {
16 public:
17  // Request DrawGL be called. Passing null |canvas| implies the request
18  // will be of AwDrawGLInfo::kModeProcess type. |wait_for_completion|
19  // will cause the call to block until DrawGL has happened; it does not
20  // work when |canvas| is not NULL. The callback may never be made, and
21  // the mode may be promoted to kModeDraw.
22  virtual bool RequestDrawGL(jobject canvas, bool wait_for_completion) = 0;
23
24  // Called when a new Picture is available. Needs to be enabled
25  // via the EnableOnNewPicture method.
26  virtual void OnNewPicture() = 0;
27
28  // Called to trigger view invalidations.
29  virtual void PostInvalidate() = 0;
30
31  // Called to update the parent draw constraints in browser view renderer.
32  virtual void UpdateParentDrawConstraints() = 0;
33
34  // Called if commit is skipped due to pipeline stall.
35  virtual void DidSkipCommitFrame() = 0;
36
37  // Called to get view's absolute location on the screen.
38  virtual gfx::Point GetLocationOnScreen() = 0;
39
40  // Try to set the view's scroll offset to |new_value|.
41  virtual void ScrollContainerViewTo(gfx::Vector2d new_value) = 0;
42
43  // Is a Android view system managed fling in progress?
44  virtual bool IsFlingActive() const = 0;
45
46  // Sets the following:
47  // view's scroll offset cap to |max_scroll_offset|,
48  // current contents_size to |contents_size_dip|,
49  // the current page scale to |page_scale_factor| and page scale limits
50  // to |min_page_scale_factor|..|max_page_scale_factor|.
51  virtual void UpdateScrollState(gfx::Vector2d max_scroll_offset,
52                                 gfx::SizeF contents_size_dip,
53                                 float page_scale_factor,
54                                 float min_page_scale_factor,
55                                 float max_page_scale_factor) = 0;
56
57  // Handle overscroll.
58  virtual void DidOverscroll(gfx::Vector2d overscroll_delta) = 0;
59
60 protected:
61  virtual ~BrowserViewRendererClient() {}
62};
63
64}  // namespace android_webview
65
66#endif  // ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_CLIENT_H_
67