@rxap/form-system
Version:
This package provides a set of directives, decorators, mixins, and validators to simplify the creation of dynamic forms in Angular applications. It offers features such as automatic control creation, data source integration, component customization, and h
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HTML
<html class="no-js" lang="">
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title>angular-form-system</title>
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<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" type="image/x-icon" href="../images/favicon.ico">
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<div class="navbar navbar-default navbar-fixed-top d-md-none p-0">
<div class="d-flex">
<a href="../" class="navbar-brand">angular-form-system</a>
<button type="button" class="btn btn-default btn-menu ion-ios-menu" id="btn-menu"></button>
</div>
</div>
<div class="xs-menu menu" id="mobile-menu">
<div id="book-search-input" role="search"><input type="text" placeholder="Type to search"></div> <compodoc-menu></compodoc-menu>
</div>
<div class="container-fluid main">
<div class="row main">
<div class="d-none d-md-block menu">
<compodoc-menu mode="normal"></compodoc-menu>
</div>
<!-- START CONTENT -->
<div class="content directive">
<div class="content-data">
<ol class="breadcrumb">
<li class="breadcrumb-item">Directives</li>
<li class="breadcrumb-item" >OptionsFromMethodDirective</li>
</ol>
<ul class="nav nav-tabs" role="tablist">
<li class="nav-item">
<a href="#info"
class="nav-link"
class="nav-link active"
role="tab" id="info-tab" data-bs-toggle="tab" data-link="info">Info</a>
</li>
<li class="nav-item">
<a href="#source"
class="nav-link"
role="tab" id="source-tab" data-bs-toggle="tab" data-link="source">Source</a>
</li>
</ul>
<div class="tab-content">
<div class="tab-pane fade active in" id="info">
<p class="comment">
<h3>File</h3>
</p>
<p class="comment">
<code>src/lib/directives/options-from-method.directive.ts</code>
</p>
<p class="comment">
<h3>Extends</h3>
</p>
<p class="comment">
<code>AfterViewInit</code>
<code>OnChanges</code>
<code><a href="../classes/ExtractOptionsMethodMixin.html" target="_self" >ExtractOptionsMethodMixin</a></code>
</p>
<p class="comment">
<h3>Implements</h3>
</p>
<p class="comment">
<code>AfterViewInit</code>
<code>OnChanges</code>
</p>
<section data-compodoc="block-metadata">
<h3>Metadata</h3>
<table class="table table-sm table-hover metadata">
<tbody>
<tr>
<td class="col-md-3">Selector</td>
<td class="col-md-9"><code>[rxapOptionsFromMethod]</code></td>
</tr>
<tr>
<td class="col-md-3">Standalone</td>
<td class="col-md-9"><code>true</code></td>
</tr>
</tbody>
</table>
</section>
<section data-compodoc="block-index">
<h3 id="index">Index</h3>
<table class="table table-sm table-bordered index-table">
<tbody>
<tr>
<td class="col-md-4">
<h6><b>Properties</b></h6>
</td>
</tr>
<tr>
<td class="col-md-4">
<ul class="index-list">
<li>
<span class="modifier">Protected</span>
<span class="modifier">Readonly</span>
<a href="#cdr" >cdr</a>
</li>
<li>
<span class="modifier">Protected</span>
<span class="modifier">Readonly</span>
<a href="#injector" >injector</a>
</li>
<li>
<span class="modifier">Protected</span>
<a href="#matFormField" >matFormField</a>
</li>
<li>
<span class="modifier">Protected</span>
<a href="#ngControl" >ngControl</a>
</li>
<li>
<span class="modifier">Public</span>
<a href="#options" >options</a>
</li>
<li>
<span class="modifier">Protected</span>
<a href="#settings" >settings</a>
</li>
<li>
<span class="modifier">Protected</span>
<span class="modifier">Readonly</span>
<a href="#viewContainerRef" >viewContainerRef</a>
</li>
</ul>
</td>
</tr>
<tr>
<td class="col-md-4">
<h6><b>Methods</b></h6>
</td>
</tr>
<tr>
<td class="col-md-4">
<ul class="index-list">
<li>
<span class="modifier">Protected</span>
<span class="modifier">Async</span>
<a href="#loadOptions" >loadOptions</a>
</li>
<li>
<span class="modifier">Static</span>
<a href="#ngTemplateContextGuard" >ngTemplateContextGuard</a>
</li>
<li>
<span class="modifier">Protected</span>
<a href="#renderTemplate" >renderTemplate</a>
</li>
<li>
<span class="modifier">Protected</span>
<a href="#setOptions" >setOptions</a>
</li>
</ul>
</td>
</tr>
<tr>
<td class="col-md-4">
<h6><b>Inputs</b></h6>
</td>
</tr>
<tr>
<td class="col-md-4">
<ul class="index-list">
<li>
<a href="#rxapOptionsFromMethodCall" >rxapOptionsFromMethodCall</a>
</li>
<li>
<a href="#rxapOptionsFromMethodParameters" >rxapOptionsFromMethodParameters</a>
</li>
<li>
<a href="#rxapOptionsFromMethodResetOnChange" >rxapOptionsFromMethodResetOnChange</a>
</li>
</ul>
</td>
</tr>
</tbody>
</table>
</section>
<section data-compodoc="block-inputs">
<h3 id="inputs">Inputs</h3>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="rxapOptionsFromMethodCall"></a>
<b>rxapOptionsFromMethodCall</b>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>Method<ControlOptions | Parameters></code>
</td>
</tr>
<tr>
<td class="col-md-2" colspan="2">
<div class="io-line">Defined in <a href="" data-line="67" class="link-to-prism">src/lib/directives/options-from-method.directive.ts:67</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="rxapOptionsFromMethodParameters"></a>
<b>rxapOptionsFromMethodParameters</b>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>Parameters</code>
</td>
</tr>
<tr>
<td class="col-md-2" colspan="2">
<div class="io-line">Defined in <a href="" data-line="59" class="link-to-prism">src/lib/directives/options-from-method.directive.ts:59</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="rxapOptionsFromMethodResetOnChange"></a>
<b>rxapOptionsFromMethodResetOnChange</b>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>Value</code>
</td>
</tr>
<tr>
<td class="col-md-2" colspan="2">
<div class="io-line">Defined in <a href="" data-line="62" class="link-to-prism">src/lib/directives/options-from-method.directive.ts:62</a></div>
</td>
</tr>
</tbody>
</table>
</section>
<section data-compodoc="block-methods">
<h3 id="methods">
Methods
</h3>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="loadOptions"></a>
<span class="name">
<span class="modifier">Protected</span>
<span class="modifier">Async</span>
<span ><b>loadOptions</b></span>
<a href="#loadOptions"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<span class="modifier-icon icon ion-ios-reset"></span>
<code>loadOptions(parameters?: Parameters)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="101"
class="link-to-prism">src/lib/directives/options-from-method.directive.ts:101</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
</tr>
</thead>
<tbody>
<tr>
<td>parameters</td>
<td>
<code>Parameters</code>
</td>
<td>
Yes
</td>
</tr>
</tbody>
</table>
</div>
<div class="io-description">
<b>Returns : </b> <code>Promise<ControlOptions | null></code>
</div>
<div class="io-description">
</div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="ngTemplateContextGuard"></a>
<span class="name">
<span class="modifier">Static</span>
<span ><b>ngTemplateContextGuard</b></span>
<a href="#ngTemplateContextGuard"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<span class="modifier-icon icon ion-ios-reset"></span>
<code>ngTemplateContextGuard(dir: <a href="../directives/OptionsFromMethodDirective.html" target="_self">OptionsFromMethodDirective</a>, ctx: <a href="https://www.typescriptlang.org/docs/handbook/basic-types.html" target="_blank">any</a>)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="51"
class="link-to-prism">src/lib/directives/options-from-method.directive.ts:51</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
</tr>
</thead>
<tbody>
<tr>
<td>dir</td>
<td>
<code><a href="../directives/OptionsFromMethodDirective.html" target="_self" >OptionsFromMethodDirective</a></code>
</td>
<td>
No
</td>
</tr>
<tr>
<td>ctx</td>
<td>
<code><a href="https://www.typescriptlang.org/docs/handbook/basic-types.html" target="_blank" >any</a></code>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</div>
<div class="io-description">
<b>Returns : </b> <code><a href="../interfaces/OptionsFromMethodTemplateContext.html" target="_self" >OptionsFromMethodTemplateContext</a></code>
</div>
<div class="io-description">
</div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="renderTemplate"></a>
<span class="name">
<span class="modifier">Protected</span>
<span ><b>renderTemplate</b></span>
<a href="#renderTemplate"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<span class="modifier-icon icon ion-ios-reset"></span>
<code>renderTemplate()</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="105"
class="link-to-prism">src/lib/directives/options-from-method.directive.ts:105</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Returns : </b> <code><a href="https://www.typescriptlang.org/docs/handbook/basic-types.html" target="_blank" >void</a></code>
</div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="setOptions"></a>
<span class="name">
<span class="modifier">Protected</span>
<span ><b>setOptions</b></span>
<a href="#setOptions"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<span class="modifier-icon icon ion-ios-reset"></span>
<code>setOptions(options: ControlOptions | null)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="125"
class="link-to-prism">src/lib/directives/options-from-method.directive.ts:125</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
</tr>
</thead>
<tbody>
<tr>
<td>options</td>
<td>
<code>ControlOptions | null</code>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</div>
<div class="io-description">
<b>Returns : </b> <code><a href="https://www.typescriptlang.org/docs/handbook/basic-types.html" target="_blank" >void</a></code>
</div>
<div class="io-description">
</div>
</td>
</tr>
</tbody>
</table>
</section>
<section data-compodoc="block-properties">
<h3 id="inputs">
Properties
</h3>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="cdr"></a>
<span class="name">
<span class="modifier">Protected</span>
<span class="modifier">Readonly</span>
<span ><b>cdr</b></span>
<a href="#cdr"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>ChangeDetectorRef</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>inject(ChangeDetectorRef)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="73" class="link-to-prism">src/lib/directives/options-from-method.directive.ts:73</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="injector"></a>
<span class="name">
<span class="modifier">Protected</span>
<span class="modifier">Readonly</span>
<span ><b>injector</b></span>
<a href="#injector"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>Injector</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>inject(INJECTOR)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="72" class="link-to-prism">src/lib/directives/options-from-method.directive.ts:72</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="matFormField"></a>
<span class="name">
<span class="modifier">Protected</span>
<span ><b>matFormField</b></span>
<a href="#matFormField"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>MatFormField | null</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>null</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="69" class="link-to-prism">src/lib/directives/options-from-method.directive.ts:69</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="ngControl"></a>
<span class="name">
<span class="modifier">Protected</span>
<span ><b>ngControl</b></span>
<a href="#ngControl"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>NgControl | AbstractControlDirective | null</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>null</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="68" class="link-to-prism">src/lib/directives/options-from-method.directive.ts:68</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="options"></a>
<span class="name">
<span class="modifier">Public</span>
<span ><b>options</b></span>
<a href="#options"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>ControlOptions | null</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>null</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="64" class="link-to-prism">src/lib/directives/options-from-method.directive.ts:64</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="settings"></a>
<span class="name">
<span class="modifier">Protected</span>
<span ><b>settings</b></span>
<a href="#settings"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code><a href="../interfaces/OptionsFromMethodDirectiveSettings.html" target="_self" >OptionsFromMethodDirectiveSettings</a></code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>{}</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="70" class="link-to-prism">src/lib/directives/options-from-method.directive.ts:70</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="viewContainerRef"></a>
<span class="name">
<span class="modifier">Protected</span>
<span class="modifier">Readonly</span>
<span ><b>viewContainerRef</b></span>
<a href="#viewContainerRef"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>ViewContainerRef</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>inject(ViewContainerRef)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="71" class="link-to-prism">src/lib/directives/options-from-method.directive.ts:71</a></div>
</td>
</tr>
</tbody>
</table>
</section>
</div>
<div class="tab-pane fade tab-source-code" id="source">
<pre class="line-numbers compodoc-sourcecode"><code class="language-typescript">import {
AfterViewInit,
ChangeDetectorRef,
Directive,
inject,
InjectFlags,
INJECTOR,
Injector,
Input,
OnChanges,
SimpleChanges,
TemplateRef,
ViewContainerRef,
} from '@angular/core';
import {
AbstractControlDirective,
NgControl,
} from '@angular/forms';
import { MatFormField } from '@angular/material/form-field';
import { RxapFormControl } from '@rxap/forms';
import { Mixin } from '@rxap/mixin';
import { Method } from '@rxap/pattern';
import {
ControlOption,
ControlOptions,
} from '@rxap/utilities';
import { ExtractOptionsMethodMixin } from '../mixins/extract-options-method.mixin';
export interface OptionsFromMethodTemplateContext {
$implicit: ControlOption;
}
// eslint-disable-next-line @typescript-eslint/no-empty-interface
export interface OptionsFromMethodDirectiveSettings {
}
// eslient-disable-next-line @typescript-eslint/no-empty-interface
export interface OptionsFromMethodDirective<Value = any, Parameters = any>
extends AfterViewInit, OnChanges, ExtractOptionsMethodMixin {
}
@Mixin(ExtractOptionsMethodMixin)
@Directive({
// eslint-disable-next-line @angular-eslint/directive-selector
selector: '[rxapOptionsFromMethod]',
standalone: true,
})
export class OptionsFromMethodDirective<Value = any, Parameters = any> implements AfterViewInit, OnChanges {
static ngTemplateContextGuard(
dir: OptionsFromMethodDirective,
ctx: any,
): ctx is OptionsFromMethodTemplateContext {
return true;
}
@Input('rxapOptionsFromMethodParameters')
public parameters?: Parameters;
@Input('rxapOptionsFromMethodResetOnChange')
public resetOnChange?: Value;
public options: ControlOptions | null = null;
// eslint-disable-next-line @angular-eslint/no-input-rename
@Input('rxapOptionsFromMethodCall')
public method!: Method<ControlOptions, Parameters>;
protected ngControl: NgControl | AbstractControlDirective | null = null;
protected matFormField: MatFormField | null = null;
protected settings: OptionsFromMethodDirectiveSettings = {};
protected readonly viewContainerRef: ViewContainerRef = inject(ViewContainerRef);
protected readonly injector: Injector = inject(INJECTOR);
protected readonly cdr: ChangeDetectorRef = inject(ChangeDetectorRef);
private readonly template: TemplateRef<OptionsFromMethodTemplateContext> = inject(TemplateRef);
public async ngAfterViewInit() {
this.matFormField = this.injector.get(MatFormField, null);
this.ngControl = this.matFormField?._control.ngControl ?? this.injector.get(NgControl, null);
this.control = (this.ngControl?.control as RxapFormControl) ?? undefined;
this.method ??= this.extractOptionsMethod();
// ensure that the options are loaded. It is possible that the ngOnChange is triggered before the ngAfterViewInit
// then the options are not loaded.
if (!this.options) {
this.setOptions(await this.loadOptions(this.parameters));
}
}
public async ngOnChanges(changes: SimpleChanges) {
// only try to load the options if the method is defined
// else the initial load will be triggered in the ngAfterViewInit
if (!this.method) {
console.debug('The method is not yet defined');
return;
}
const parametersChanges = changes['parameters'];
if (parametersChanges) {
this.setOptions(await this.loadOptions(parametersChanges.currentValue));
}
}
protected async loadOptions(parameters?: Parameters): Promise<ControlOptions | null> {
return this.method.call(parameters);
}
protected renderTemplate() {
if (!this.options) {
throw new Error('The options are not yet loaded');
}
this.viewContainerRef.clear();
for (const option of this.options) {
this.viewContainerRef.createEmbeddedView(this.template, {$implicit: option});
}
if (this.resetOnChange !== undefined) {
this.control?.reset(this.resetOnChange);
}
this.cdr.detectChanges();
}
protected setOptions(options: ControlOptions | null) {
if (!options) {
this.options = null;
this.viewContainerRef.clear();
} else {
this.options = options.slice();
this.renderTemplate();
}
}
}
</code></pre>
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