cc/test/mock_occlusion_tracker.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 CC_TEST_MOCK_OCCLUSION_TRACKER_H_
   6 #define CC_TEST_MOCK_OCCLUSION_TRACKER_H_
   7
   8 #include "cc/trees/occlusion_tracker.h"
   9
  10 namespace cc {
  11
  12 class MockOcclusionTracker : public OcclusionTracker {
  13   // This class is used for testing only. It fakes just enough information to
  14   // calculate unoccluded content rect and unoccluded contributing surface
  15   // content rect. It calls the helper function of occlusion tracker to avoid
  16   // DCHECKs since testing environment won't be set up properly to pass those.
  17  public:
  18   MockOcclusionTracker() : OcclusionTracker(gfx::Rect(0, 0, 1000, 1000)) {
  19     OcclusionTracker::StackObject stack_obj;
  20     OcclusionTracker::stack_.push_back(stack_obj);
  21     OcclusionTracker::stack_.push_back(stack_obj);
  22   }
  23
  24   explicit MockOcclusionTracker(const gfx::Rect& screen_scissor_rect)
  25       : OcclusionTracker(screen_scissor_rect) {
  26     OcclusionTracker::StackObject stack_obj;
  27     OcclusionTracker::stack_.push_back(stack_obj);
  28     OcclusionTracker::stack_.push_back(stack_obj);
  29   }
  30
  31   void set_occluded_target_rect(const gfx::Rect& occluded) {
  32     OcclusionTracker::stack_.back().occlusion_from_inside_target = occluded;
  33   }
  34
  35   void set_occluded_target_rect_for_contributing_surface(
  36       const gfx::Rect& occluded) {
  37     OcclusionTracker::stack_[OcclusionTracker::stack_.size() - 2]
  38         .occlusion_from_inside_target = occluded;
  39   }
  40
  41  private:
  42   DISALLOW_COPY_AND_ASSIGN(MockOcclusionTracker);
  43 };
  44
  45 }  // namespace cc
  46
  47 #endif  // CC_TEST_MOCK_OCCLUSION_TRACKER_H_