OLD | NEW |
(Empty) | |
| 1 // Copyright 2017 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 COMPONENTS_VIZ_COMMON_HIT_TEST_AGGREGATED_HIT_TEST_REGION_H_ |
| 6 #define COMPONENTS_VIZ_COMMON_HIT_TEST_AGGREGATED_HIT_TEST_REGION_H_ |
| 7 |
| 8 #include <stdint.h> |
| 9 |
| 10 #include "components/viz/common/surfaces/surface_id.h" |
| 11 #include "ui/gfx/geometry/rect.h" |
| 12 #include "ui/gfx/transform.h" |
| 13 |
| 14 namespace viz { |
| 15 |
| 16 // A AggregatedHitTestRegion element with child_count of kEndOfList indicates |
| 17 // the last element and end of the list. |
| 18 constexpr int kEndOfList = -1; |
| 19 |
| 20 // An array of AggregatedHitTestRegion elements is used to define the |
| 21 // aggregated hit-test data for the Display. |
| 22 // |
| 23 // It is designed to be in shared memory so that the viz service can |
| 24 // write the hit_test data, and the viz host can read without |
| 25 // process hops. |
| 26 struct AggregatedHitTestRegion { |
| 27 // The FrameSinkId corresponding to this region. Events that match |
| 28 // are routed to this surface. |
| 29 FrameSinkId frame_sink_id; |
| 30 |
| 31 // Flags to indicate the type of region as defined for |
| 32 // mojom::HitTestRegion |
| 33 uint32_t flags; |
| 34 |
| 35 // The rectangle that defines the region in parent region's coordinate space. |
| 36 gfx::Rect rect; |
| 37 |
| 38 // The transform applied to the rect in parent region's coordinate space. |
| 39 gfx::Transform transform; |
| 40 |
| 41 // The number of children including their children below this entry. |
| 42 // If this element is not matched then child_count elements can be skipped |
| 43 // to move to the next entry. |
| 44 int child_count; |
| 45 }; |
| 46 |
| 47 } // namespace viz |
| 48 |
| 49 #endif // COMPONENTS_VIZ_COMMON_HIT_TEST_AGGREGATED_HIT_TEST_REGION_H_ |
OLD | NEW |