verstak/build/dist/source/core/sensors/WheelSensor.js

Verstak - Front-End Library

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;
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    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, atomic, LoggingLevel, Transaction } from "reactronic";
import { findTargetElementData, SymDataForSensor } from "./DataForSensor.js";
import { extractModifierKeys, KeyboardModifiers } from "./KeyboardSensor.js";
import { BasePointerSensor } from "./BasePointerSensor.js";
export class WheelSensor extends BasePointerSensor {
    constructor(element) {
        super(element);
        this.target = undefined;
        this.target = undefined;
        this.deltaX = Infinity;
        this.deltaY = Infinity;
    }
    listen(enabled = true) {
        const t = Transaction.current;
        Transaction.outside(() => {
            t.whenFinished(true).then(() => {
                const element = this.sourceElement;
                if (enabled) {
                    element.addEventListener("wheel", this.onWheel.bind(this), { capture: true, passive: true });
                }
                else {
                    element.removeEventListener("wheel", this.onWheel.bind(this), { capture: true });
                }
            }, e => { });
        });
    }
    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([
    atomic,
    __metadata("design:type", Function),
    __metadata("design:paramtypes", []),
    __metadata("design:returntype", void 0)
], WheelSensor.prototype, "reset", null);
__decorate([
    atomic,
    options({ reentrance: Reentrance.cancelPrevious, logging: LoggingLevel.Off }),
    __metadata("design:type", Function),
    __metadata("design:paramtypes", [WheelEvent]),
    __metadata("design:returntype", void 0)
], WheelSensor.prototype, "doWheel", null);