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 { 15 HighPrecisionTime, 16 HighPrecisionTimeSpan, 17} from '../../common/high_precision_time'; 18import {globals} from '../globals'; 19import {TimeScale} from '../time_scale'; 20 21export abstract class DragStrategy { 22 constructor(protected map: TimeScale) {} 23 24 abstract onDrag(x: number): void; 25 26 abstract onDragStart(x: number): void; 27 28 protected updateGlobals(tStart: HighPrecisionTime, tEnd: HighPrecisionTime) { 29 const vizTime = new HighPrecisionTimeSpan(tStart, tEnd); 30 globals.frontendLocalState.updateVisibleTime(vizTime); 31 globals.rafScheduler.scheduleRedraw(); 32 } 33} 34