xref: /aosp_15_r20/external/perfetto/ui/src/frontend/drag/outer_drag_strategy.ts (revision 6dbdd20afdafa5e3ca9b8809fa73465d530080dc)
1// Copyright (C) 2021 The Android Open Source Project
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//      http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14import {DragStrategy} from './drag_strategy';
15
16export class OuterDragStrategy extends DragStrategy {
17  private dragStartPx = 0;
18
19  onDrag(x: number) {
20    const tStart = this.map.pxToHpTime(Math.min(x, this.dragStartPx));
21    const tEnd = this.map.pxToHpTime(Math.max(x, this.dragStartPx));
22    super.updateGlobals(tStart, tEnd);
23  }
24
25  onDragStart(x: number) {
26    this.dragStartPx = x;
27  }
28}
29