Index: components/viz/common/hit_test/aggregated_hit_test_region.h |
diff --git a/components/viz/common/hit_test/aggregated_hit_test_region.h b/components/viz/common/hit_test/aggregated_hit_test_region.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..98972c220655884b740421b19aff4935b602ba2a |
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+++ b/components/viz/common/hit_test/aggregated_hit_test_region.h |
@@ -0,0 +1,49 @@ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef COMPONENTS_VIZ_COMMON_HIT_TEST_AGGREGATED_HIT_TEST_REGION_H_ |
+#define COMPONENTS_VIZ_COMMON_HIT_TEST_AGGREGATED_HIT_TEST_REGION_H_ |
+ |
+#include <stdint.h> |
+ |
+#include "components/viz/common/surface_id.h" |
+#include "ui/gfx/geometry/rect.h" |
+#include "ui/gfx/transform.h" |
+ |
+namespace viz { |
+ |
+// A AggregatedHitTestRegion element with child_count of kEndOfList indicates |
+// the last element and end of the list. |
+constexpr int kEndOfList = -1; |
+ |
+// An array of AggregatedHitTestRegion elements is used to define the |
+// aggregated hit-test data for the Display. |
+// |
+// It is designed to be in shared memory so that the viz service can |
+// write the hit_test data, and the viz host can read without |
+// process hops. |
+struct AggregatedHitTestRegion { |
+ // The FrameSinkId corresponding to this region. Events that match |
+ // are routed to this surface. |
+ FrameSinkId frame_sink_id; |
+ |
+ // Flags to indicate the type of region as defined for |
+ // mojom::HitTestRegion |
+ uint32_t flags; |
+ |
+ // The rectangle that defines the region in parent region's coordinate space. |
+ gfx::Rect rect; |
+ |
+ // The transform applied to the rect in parent region's coordinate space. |
+ gfx::Transform transform; |
+ |
+ // The number of children including their children below this entry. |
+ // If this element is not matched then child_count elements can be skipped |
+ // to move to the next entry. |
+ int child_count; |
+}; |
+ |
+} // namespace viz |
+ |
+#endif // COMPONENTS_VIZ_COMMON_HIT_TEST_AGGREGATED_HIT_TEST_REGION_H_ |