angular-dynamic-forms-lite
Version:
Efficient dynamic and customizable Angular 7+ forms.
142 lines • 15 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
import { DynamicArrayController } from "./dynamic-array-controller";
import { ArrayRenderer } from "./array-renderer";
export class ArrayFieldFactory {
/**
* @param {?} parentFieldFactory
* @param {?} formBuilder
*/
constructor(parentFieldFactory, formBuilder) {
this.parentFieldFactory = parentFieldFactory;
this.formBuilder = formBuilder;
}
/**
* @template M
* @param {?} options
* @return {?}
*/
create(options) {
const { setting } = options;
if (!setting.childSetting) {
throw new Error(`Array ${options.setting.name} needs 'childSetting' as part of its setting.`);
}
const [formControl, children] = this.createChildContexts(options);
/** @type {?} */
const dynamicController = new DynamicArrayController(this.parentFieldFactory);
/** @type {?} */
const arrayComponentContext = Object.assign({}, this.parentFieldFactory.resolveComponent(formControl, setting, options.initialValue, dynamicController), { children });
/** @type {?} */
const arrayComponent = (/** @type {?} */ (arrayComponentContext.componentRef.instance));
if (!arrayComponent.formRoot) {
throw new Error(`Array component ${setting.name} is not an array component. It is missing the 'formRoot' directive.`);
}
// initialize controller after all values and children are resolved
dynamicController.onInit(arrayComponentContext);
return arrayComponentContext;
}
/**
* @param {?} arrayContext
* @return {?}
*/
updateChildren(arrayContext) {
/** @type {?} */
const unchecked = [...arrayContext.formControl.controls];
((/** @type {?} */ (arrayContext.children))).forEach((/**
* @param {?} child
* @param {?} i
* @return {?}
*/
(child, i) => {
if (arrayContext.formControl.controls.indexOf(child.formControl) === -1) {
arrayContext.formControl.insert(i, child.formControl);
}
else {
unchecked.splice(unchecked.indexOf(child.formControl), 1);
}
}));
unchecked.forEach((/**
* @param {?} control
* @return {?}
*/
control => arrayContext.formControl.removeAt(arrayContext.formControl.controls.indexOf(control))));
}
/**
* @param {?} formRoot
* @param {?} arrayContext
* @return {?}
*/
render(formRoot, arrayContext) {
/** @type {?} */
const viewRef = formRoot.viewContainerRef.insert(arrayContext.componentRef.hostView);
viewRef.detectChanges();
/** @type {?} */
const arrayComponent = (/** @type {?} */ (arrayContext.componentRef.instance));
/** @type {?} */
const paginator = ((/** @type {?} */ (arrayContext.setting))).renderStrategy.paginator;
/** @type {?} */
const pageEvent = { pageIndex: paginator.pageIndex, pageSize: paginator.pageSize };
/** @type {?} */
const renderer = new ArrayRenderer(this.parentFieldFactory, arrayComponent.formRoot);
renderer.render(arrayContext, pageEvent);
return viewRef;
}
/**
* @private
* @template M
* @param {?} options
* @return {?}
*/
createChildContexts(options) {
if (options.formControl) {
/** @type {?} */
const children = options.formControl.controls.map((/**
* @param {?} formControl
* @return {?}
*/
formControl => this.parentFieldFactory.create({
formControl,
setting: options.setting.childSetting,
settings: options.settings
})));
return [options.formControl, children];
}
/** @type {?} */
const values = options.initialValue ? options.initialValue : [];
if (!Array.isArray(values)) {
throw new Error(`Value of ${options.setting.name} is not an array.`);
}
/** @type {?} */
const children = values.map((/**
* @param {?} value
* @return {?}
*/
value => this.parentFieldFactory.create({
initialValue: value,
setting: options.setting.childSetting,
settings: options.settings
})));
/** @type {?} */
const formControl = this.formBuilder.array(children.map((/**
* @param {?} context
* @return {?}
*/
context => context.formControl)));
return [formControl, children];
}
}
if (false) {
/**
* @type {?}
* @private
*/
ArrayFieldFactory.prototype.parentFieldFactory;
/**
* @type {?}
* @private
*/
ArrayFieldFactory.prototype.formBuilder;
}
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It is missing the 'formRoot' directive.`\n      );\n    }\n\n    // initialize controller after all values and children are resolved\n    dynamicController.onInit(arrayComponentContext);\n\n    return arrayComponentContext;\n  }\n\n  public updateChildren(arrayContext: FormContext<any, FormArray>) {\n    const unchecked = [...arrayContext.formControl.controls];\n    (arrayContext.children as FormContext<any>[]).forEach((child, i) => {\n      if (arrayContext.formControl.controls.indexOf(child.formControl) === -1) {\n        arrayContext.formControl.insert(i, child.formControl);\n      } else {\n        unchecked.splice(unchecked.indexOf(child.formControl), 1);\n      }\n    });\n\n    unchecked.forEach(control => arrayContext.formControl.removeAt(arrayContext.formControl.controls.indexOf(control)));\n  }\n\n  public render(formRoot: FormRootDirective, arrayContext: FormContext<any, FormArray>): ViewRef {\n    const viewRef = formRoot.viewContainerRef.insert(arrayContext.componentRef.hostView);\n    viewRef.detectChanges();\n\n    const arrayComponent = arrayContext.componentRef.instance as FormFieldArrayComponent;\n    const paginator = (arrayContext.setting as ArrayFormFieldSetting).renderStrategy.paginator;\n    const pageEvent = { pageIndex: paginator.pageIndex, pageSize: paginator.pageSize };\n\n    const renderer = new ArrayRenderer(this.parentFieldFactory, arrayComponent.formRoot);\n    renderer.render(arrayContext, pageEvent);\n\n    return viewRef;\n  }\n\n  private createChildContexts<M>(\n    options: CreateFormContextOptions<M, FormArray, ArrayFormFieldSetting<M>>\n  ): [FormArray, FormContext<M>[]] {\n    if (options.formControl) {\n      const children = options.formControl.controls.map(formControl =>\n        this.parentFieldFactory.create<any>({\n          formControl,\n          setting: options.setting.childSetting,\n          settings: options.settings\n        })\n      );\n\n      return [options.formControl, children];\n    }\n\n    const values = options.initialValue ? options.initialValue : [];\n\n    if (!Array.isArray(values)) {\n      throw new Error(`Value of ${options.setting.name} is not an array.`);\n    }\n\n    const children = values.map(value =>\n      this.parentFieldFactory.create<any>({\n        initialValue: value,\n        setting: options.setting.childSetting,\n        settings: options.settings\n      })\n    );\n\n    const formControl = this.formBuilder.array(children.map(context => context.formControl));\n\n    return [formControl, children];\n  }\n}\n"]}