1 files changed, 31 insertions, 0 deletions
diff --git a/ui/src/frontend/slice.ts b/ui/src/frontend/slice.ts
new file mode 100644
index 000000000..5b660ef0e
--- /dev/null
+++ b/ui/src/frontend/slice.ts
@@ -0,0 +1,31 @@
+// Copyright (C) 2021 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import {Color} from '../common/colorizer';
+
+export interface Slice {
+  // These properties are updated only once per query result when the Slice
+  // object is created and don't change afterwards.
+  readonly id: number;
+  readonly startS: number;
+  readonly durationS: number;
+  readonly depth: number;
+  readonly flags: number;
+
+  // These can be changed by the Impl.
+  title: string;
+  subTitle: string;
+  baseColor: Color;
+  color: Color;
+}