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 struct ParentCompositorDrawConstraints;
  15
  16 class BrowserViewRendererClient {
  17  public:
  18   // Request DrawGL to be in called AwDrawGLInfo::kModeProcess type.
  19   // |wait_for_completion| will cause the call to block until DrawGL has
  20   // happened. The callback may never be made, and the mode may be promoted to
  21   // kModeDraw.
  22   virtual bool RequestDrawGL(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   // This calls postInvalidateOnAnimation if outside of a vsync, otherwise it
  30   // calls invalidate.
  31   virtual void PostInvalidate() = 0;
  32
  33   // Call postInvalidateOnAnimation for invalidations. This is only used to
  34   // synchronize draw functor destruction.
  35   virtual void DetachFunctorFromView() = 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   // Visible for testing
  61   // Called when the parent draw constraints in browser view renderer gets
  62   // updated.
  63   virtual void ParentDrawConstraintsUpdated(
  64       const ParentCompositorDrawConstraints& draw_constraints) = 0;
  65
  66  protected:
  67   virtual ~BrowserViewRendererClient() {}
  68 };
  69
  70 }  // namespace android_webview
  71
  72 #endif  // ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_CLIENT_H_