@progress/kendo-angular-charts
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Kendo UI Charts for Angular - A comprehensive package for creating beautiful and interactive data visualization. Every chart type, stock charts, and sparklines are included.
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JavaScript
/**-----------------------------------------------------------------------------------------
* Copyright © 2025 Progress Software Corporation. All rights reserved.
* Licensed under commercial license. See LICENSE.md in the project root for more information
*-------------------------------------------------------------------------------------------*/
import { Directive, EventEmitter, Input, Output } from "@angular/core";
import { isChanged } from "@progress/kendo-angular-common";
import { getter } from "@progress/kendo-common";
import { SankeyComponent } from "../../sankey.component";
import { createSankeyData } from "@progress/kendo-charts";
import { SankeyFlatBindingDataBoundEvent } from "./flat-binding.event";
import * as i0 from "@angular/core";
import * as i1 from "../../sankey.component";
/**
* Represents a directive that encapsulates the retrieval of the nodes and links when flat data is provided.
*
* See [Data Binding - Binding to Flat Data]({% slug data_binding_sankey %}#toc-binding-to-flat-data).
*/
export class SankeyFlatBindingDirective {
sankey;
/**
* Specifies the data that the Sankey diagram displays.
*/
data;
/**
* Sets the fields that identify the nodes.
*/
dimensionFields = [];
/**
* Sets the unique field that represents the link value between nodes.
*/
valueField;
/**
* Fires when the flat data has been converted to `SankeyData`.
*
* Modify the data to customize the created nodes and links.
*/
dataBound = new EventEmitter();
constructor(sankey) {
this.sankey = sankey;
}
ngOnChanges(changes) {
if (!isChanged('data', changes, false)) {
return;
}
if (this.dimensionFields?.length === 0) {
throw new Error('kendoSankeyFlatBinding: dimensionFields is required');
}
if (!this.valueField) {
throw new Error('kendoSankeyFlatBinding: valueField is required');
}
const dimensions = this.dimensionFields.map(field => ({ value: getter(field) }));
const measure = { value: getter(this.valueField) };
const data = createSankeyData(this.data, dimensions, measure);
this.dataBound.emit(new SankeyFlatBindingDataBoundEvent(data));
this.sankey.notifyChanges({ data });
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: SankeyFlatBindingDirective, deps: [{ token: i1.SankeyComponent }], target: i0.ɵɵFactoryTarget.Directive });
static ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.2.12", type: SankeyFlatBindingDirective, isStandalone: true, selector: "[kendoSankeyFlatBinding]", inputs: { data: ["kendoSankeyFlatBinding", "data"], dimensionFields: "dimensionFields", valueField: "valueField" }, outputs: { dataBound: "dataBound" }, usesOnChanges: true, ngImport: i0 });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: SankeyFlatBindingDirective, decorators: [{
type: Directive,
args: [{
selector: '[kendoSankeyFlatBinding]',
standalone: true
}]
}], ctorParameters: function () { return [{ type: i1.SankeyComponent }]; }, propDecorators: { data: [{
type: Input,
args: ['kendoSankeyFlatBinding']
}], dimensionFields: [{
type: Input
}], valueField: [{
type: Input
}], dataBound: [{
type: Output
}] } });