android_webview/browser/browser_view_renderer_client.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 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
  13 namespace android_webview {
  14
  15 class 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 get view's absolute location on the screen.
  32   virtual gfx::Point GetLocationOnScreen() = 0;
  33
  34   // Try to set the view's scroll offset to |new_value|.
  35   virtual void ScrollContainerViewTo(gfx::Vector2d new_value) = 0;
  36
  37   // Is a Android view system managed fling in progress?
  38   virtual bool IsFlingActive() const = 0;
  39
  40   // Sets the following:
  41   // view's scroll offset cap to |max_scroll_offset|,
  42   // current contents_size to |contents_size_dip|,
  43   // the current page scale to |page_scale_factor| and page scale limits
  44   // to |min_page_scale_factor|..|max_page_scale_factor|.
  45   virtual void UpdateScrollState(gfx::Vector2d max_scroll_offset,
  46                                  gfx::SizeF contents_size_dip,
  47                                  float page_scale_factor,
  48                                  float min_page_scale_factor,
  49                                  float max_page_scale_factor) = 0;
  50
  51   // Handle overscroll.
  52   virtual void DidOverscroll(gfx::Vector2d overscroll_delta) = 0;
  53
  54  protected:
  55   virtual ~BrowserViewRendererClient() {}
  56 };
  57
  58 }  // namespace android_webview
  59
  60 #endif  // ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_CLIENT_H_