@foblex/flow/esm2022/domain/f-zoom/set-zoom/set-zoom.execution.mjs

An Angular library designed to simplify the creation and manipulation of dynamic flow. Provides components for flows, nodes, and connections, automating node manipulation and inter-node connections.

import { __decorate } from "tslib";
import { inject, Injectable } from '@angular/core';
import { FExecutionRegister, FMediator } from '@foblex/mediator';
import { SetZoomRequest } from './set-zoom-request';
import { FComponentsStore } from '../../../f-storage';
import { F_ZOOM_TAG } from '../f-zoom-tag';
import { Point } from '@foblex/2d';
import { IsDragStartedRequest } from '../../f-draggable';
import * as i0 from "@angular/core";
let SetZoomExecution = class SetZoomExecution {
    _fMediator = inject(FMediator);
    _fComponentsStore = inject(FComponentsStore);
    get _fHost() {
        return this._fComponentsStore.fFlow?.hostElement;
    }
    get _fCanvas() {
        return this._fComponentsStore.fCanvas;
    }
    get _fZoomComponent() {
        return this._fComponentsStore.fComponents[F_ZOOM_TAG];
    }
    get _isDragStarted() {
        return this._fMediator.execute(new IsDragStartedRequest());
    }
    handle(request) {
        if (this._isDragStarted || !this._fZoomComponent) {
            return;
        }
        const result = this._fCanvas.transform.scale + request.step * request.direction;
        this._fCanvas.setScale(this._clamp(result), this._castPositionToFlow(request.position));
        request.animate ? this._fCanvas.redrawWithAnimation() : this._fCanvas.redraw();
        this._fCanvas.emitCanvasChangeEvent();
    }
    _clamp(value) {
        return Math.max(this._fZoomComponent.minimum, Math.min(value, this._fZoomComponent.maximum));
    }
    _castPositionToFlow(position) {
        return Point.fromPoint(position).elementTransform(this._fHost);
    }
    static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: SetZoomExecution, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
    static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: SetZoomExecution });
};
SetZoomExecution = __decorate([
    FExecutionRegister(SetZoomRequest)
], SetZoomExecution);
export { SetZoomExecution };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: SetZoomExecution, decorators: [{
            type: Injectable
        }] });
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xlbWVudFRyYW5zZm9ybSh0aGlzLl9mSG9zdCk7XG4gIH1cbn1cbiJdfQ==