@foblex/flow
Version:
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.
76 lines • 13.3 kB
JavaScript
import { __decorate } from "tslib";
import { inject, Injectable, Injector } from '@angular/core';
import { FReassignConnectionPreparationRequest } from './f-reassign-connection-preparation.request';
import { Point } from '@foblex/2d';
import { FComponentsStore } from '../../../../f-storage';
import { FDraggableDataContext } from '../../../f-draggable-data-context';
import { isValidEventTrigger, UpdateItemAndChildrenLayersRequest } from '../../../../domain';
import { FExecutionRegister, FMediator } from '@foblex/mediator';
import { FReassignConnectionDragHandler } from '../f-reassign-connection.drag-handler';
import * as i0 from "@angular/core";
let FReassignConnectionPreparationExecution = class FReassignConnectionPreparationExecution {
_fMediator = inject(FMediator);
_fComponentsStore = inject(FComponentsStore);
_fDraggableDataContext = inject(FDraggableDataContext);
_injector = inject(Injector);
_fConnection;
get _transform() {
return this._fComponentsStore.fCanvas.transform;
}
get _fHost() {
return this._fComponentsStore.fFlow.hostElement;
}
get _fConnections() {
return this._fComponentsStore.fConnections;
}
handle(request) {
if (!this._isValid(request) || !this._isValidTrigger(request)) {
return;
}
this._fDraggableDataContext.onPointerDownScale = this._transform.scale;
this._fDraggableDataContext.onPointerDownPosition = Point.fromPoint(request.event.getPosition())
.elementTransform(this._fHost).div(this._transform.scale);
this._fDraggableDataContext.draggableItems = [
new FReassignConnectionDragHandler(this._injector, this._fConnection)
];
setTimeout(() => this._updateConnectionLayer());
}
_isValid(request) {
this._fConnection = this._getConnectionToReassign(this._getPointInFlow(request));
return !!this._fConnection && !this._fDraggableDataContext.draggableItems.length;
}
_isValidTrigger(request) {
return isValidEventTrigger(request.event.originalEvent, request.fTrigger);
}
_getPointInFlow(request) {
return Point.fromPoint(request.event.getPosition())
.elementTransform(this._fHost)
.sub(this._transform.scaledPosition).sub(this._transform.position)
.div(this._transform.scale);
}
_getConnectionToReassign(position) {
const connections = this._getConnectionsFromPoint(position);
return connections.length ? connections[0] : undefined;
}
_getConnectionsFromPoint(position) {
return this._fConnections.filter((x) => {
return x.fDragHandle?.point && this._isPointInsideCircle(position, x.fDragHandle.point) && !x.fDraggingDisabled;
});
}
_isPointInsideCircle(point, circleCenter) {
return (point.x - circleCenter.x) ** 2 + (point.y - circleCenter.y) ** 2 <= 8 ** 2;
}
_updateConnectionLayer() {
this._fMediator.execute(new UpdateItemAndChildrenLayersRequest(this._fConnection, this._fComponentsStore.fCanvas.fConnectionsContainer().nativeElement));
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: FReassignConnectionPreparationExecution, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: FReassignConnectionPreparationExecution });
};
FReassignConnectionPreparationExecution = __decorate([
FExecutionRegister(FReassignConnectionPreparationRequest)
], FReassignConnectionPreparationExecution);
export { FReassignConnectionPreparationExecution };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: FReassignConnectionPreparationExecution, decorators: [{
type: Injectable
}] });
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{ inject, Injectable, Injector } from '@angular/core';\nimport { FReassignConnectionPreparationRequest } from './f-reassign-connection-preparation.request';\nimport { IPoint, ITransformModel, Point } from '@foblex/2d';\nimport { FComponentsStore } from '../../../../f-storage';\nimport { FDraggableDataContext } from '../../../f-draggable-data-context';\nimport { isValidEventTrigger, UpdateItemAndChildrenLayersRequest } from '../../../../domain';\nimport { FExecutionRegister, FMediator, IExecution } from '@foblex/mediator';\nimport { FConnectionBase } from '../../../../f-connection';\nimport { FReassignConnectionDragHandler } from '../f-reassign-connection.drag-handler';\n\n@Injectable()\n@FExecutionRegister(FReassignConnectionPreparationRequest)\nexport class FReassignConnectionPreparationExecution implements IExecution<FReassignConnectionPreparationRequest, void> {\n\n  private readonly _fMediator = inject(FMediator);\n  private readonly _fComponentsStore = inject(FComponentsStore);\n  private readonly _fDraggableDataContext = inject(FDraggableDataContext);\n  private readonly _injector = inject(Injector);\n\n  private _fConnection: FConnectionBase | undefined;\n\n  private get _transform(): ITransformModel {\n    return this._fComponentsStore.fCanvas!.transform;\n  }\n\n  private get _fHost(): HTMLElement {\n    return this._fComponentsStore.fFlow!.hostElement;\n  }\n\n  private get _fConnections(): FConnectionBase[] {\n    return this._fComponentsStore.fConnections;\n  }\n\n  public handle(request: FReassignConnectionPreparationRequest): void {\n    if (!this._isValid(request) || !this._isValidTrigger(request)) {\n      return;\n    }\n\n    this._fDraggableDataContext.onPointerDownScale = this._transform.scale;\n    this._fDraggableDataContext.onPointerDownPosition = Point.fromPoint(request.event.getPosition())\n      .elementTransform(this._fHost).div(this._transform.scale);\n    this._fDraggableDataContext.draggableItems = [\n      new FReassignConnectionDragHandler(this._injector, this._fConnection!)\n    ];\n\n    setTimeout(() => this._updateConnectionLayer());\n  }\n\n  private _isValid(request: FReassignConnectionPreparationRequest): boolean {\n    this._fConnection = this._getConnectionToReassign(this._getPointInFlow(request));\n    return !!this._fConnection && !this._fDraggableDataContext.draggableItems.length;\n  }\n\n  private _isValidTrigger(request: FReassignConnectionPreparationRequest): boolean {\n    return isValidEventTrigger(request.event.originalEvent, request.fTrigger);\n  }\n\n  private _getPointInFlow(request: FReassignConnectionPreparationRequest): IPoint {\n    return Point.fromPoint(request.event.getPosition())\n      .elementTransform(this._fHost)\n      .sub(this._transform.scaledPosition).sub(this._transform.position)\n      .div(this._transform.scale);\n  }\n\n  private _getConnectionToReassign(position: IPoint): FConnectionBase | undefined {\n    const connections = this._getConnectionsFromPoint(position);\n    return connections.length ? connections[0] : undefined;\n  }\n\n  private _getConnectionsFromPoint(position: IPoint): FConnectionBase[] {\n    return this._fConnections.filter((x) => {\n      return x.fDragHandle?.point && this._isPointInsideCircle(position, x.fDragHandle.point) && !x.fDraggingDisabled;\n    });\n  }\n\n  private _isPointInsideCircle(point: IPoint, circleCenter: IPoint): boolean {\n    return (point.x - circleCenter.x) ** 2 + (point.y - circleCenter.y) ** 2 <= 8 ** 2;\n  }\n\n  private _updateConnectionLayer(): void {\n    this._fMediator.execute<void>(\n      new UpdateItemAndChildrenLayersRequest(\n        this._fConnection!, this._fComponentsStore.fCanvas!.fConnectionsContainer().nativeElement\n      )\n    );\n  }\n}\n"]}