reactronic-dom
Version:
Reactronic DOM - Transactional Reactive Front-End Development Framework
87 lines (86 loc) • 3.52 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
import { options, Reentrance, transaction, LoggingLevel } from 'reactronic';
import { findTargetElementData, SymDataForSensor } from './DataForSensor';
import { extractModifierKeys, KeyboardModifiers } from './KeyboardSensor';
import { BasePointerSensor } from './BasePointerSensor';
export class WheelSensor extends BasePointerSensor {
constructor() {
super();
this.target = undefined;
this.target = undefined;
this.deltaX = Infinity;
this.deltaY = Infinity;
}
listen(element, enabled = true) {
const existing = this.sourceElement;
if (element !== existing) {
if (existing) {
existing.removeEventListener('wheel', this.onWheel.bind(this), { capture: true });
}
this.sourceElement = element;
if (element && enabled) {
element.addEventListener('wheel', this.onWheel.bind(this), { capture: true, passive: true });
}
}
}
reset() {
this.doReset();
}
onWheel(e) {
this.doWheel(e);
}
doWheel(e) {
this.updateSensorData(e);
}
doReset() {
this.preventDefault = false;
this.stopPropagation = false;
this.modifiers = KeyboardModifiers.None;
this.positionX = Infinity;
this.positionY = Infinity;
this.target = undefined;
this.deltaX = Infinity;
this.deltaY = Infinity;
}
updateSensorData(e) {
var _a;
this.preventDefault = false;
this.stopPropagation = false;
const targetPath = e.composedPath();
const underPointer = document.elementsFromPoint(e.clientX, e.clientY);
this.target = (_a = findTargetElementData(targetPath, underPointer, SymDataForSensor, ['wheel']).data) === null || _a === void 0 ? void 0 : _a.wheel;
this.modifiers = extractModifierKeys(e);
this.positionX = e.clientX;
this.positionY = e.clientY;
this.deltaX = e.deltaX;
this.deltaY = e.deltaY;
this.revision++;
}
}
__decorate([
transaction,
__metadata("design:type", Function),
__metadata("design:paramtypes", [Object, Boolean]),
__metadata("design:returntype", void 0)
], WheelSensor.prototype, "listen", null);
__decorate([
transaction,
__metadata("design:type", Function),
__metadata("design:paramtypes", []),
__metadata("design:returntype", void 0)
], WheelSensor.prototype, "reset", null);
__decorate([
transaction,
options({ reentrance: Reentrance.CancelPrevious, logging: LoggingLevel.Off }),
__metadata("design:type", Function),
__metadata("design:paramtypes", [WheelEvent]),
__metadata("design:returntype", void 0)
], WheelSensor.prototype, "doWheel", null);