@ngx-formly/core
Version:
Formly is a dynamic (JSON powered) form library for Angular that bring unmatched maintainability to your application's forms.
154 lines • 23.1 kB
JavaScript
import { ComponentRef } from '@angular/core';
import { getFieldId, assignFieldValue, isUndefined, getFieldValue, reverseDeepMerge, defineHiddenProp, clone, getField, markFieldForCheck, hasKey, observe, } from '../../utils';
import { Subject } from 'rxjs';
export class CoreExtension {
constructor(config) {
this.config = config;
this.formId = 0;
}
prePopulate(field) {
const root = field.parent;
this.initRootOptions(field);
this.initFieldProps(field);
if (root) {
Object.defineProperty(field, 'options', { get: () => root.options, configurable: true });
Object.defineProperty(field, 'model', {
get: () => (hasKey(field) && field.fieldGroup ? getFieldValue(field) : root.model),
configurable: true,
});
}
Object.defineProperty(field, 'get', {
value: (key) => getField(field, key),
configurable: true,
});
this.getFieldComponentInstance(field).prePopulate?.(field);
}
onPopulate(field) {
this.initFieldOptions(field);
this.getFieldComponentInstance(field).onPopulate?.(field);
if (field.fieldGroup) {
field.fieldGroup.forEach((f, index) => {
if (f) {
Object.defineProperty(f, 'parent', { get: () => field, configurable: true });
Object.defineProperty(f, 'index', { get: () => index, configurable: true });
}
this.formId++;
});
}
}
postPopulate(field) {
this.getFieldComponentInstance(field).postPopulate?.(field);
}
initFieldProps(field) {
field.props ?? (field.props = field.templateOptions);
Object.defineProperty(field, 'templateOptions', {
get: () => field.props,
set: (props) => (field.props = props),
configurable: true,
});
}
initRootOptions(field) {
if (field.parent) {
return;
}
const options = field.options;
field.options.formState = field.options.formState || {};
if (!options.showError) {
options.showError = this.config.extras.showError;
}
if (!options.fieldChanges) {
defineHiddenProp(options, 'fieldChanges', new Subject());
}
if (!options._hiddenFieldsForCheck) {
options._hiddenFieldsForCheck = [];
}
options._markForCheck = (f) => {
console.warn(`Formly: 'options._markForCheck' is deprecated since v6.0, use 'options.detectChanges' instead.`);
options.detectChanges(f);
};
options._detectChanges = (f) => {
if (f._componentRefs) {
markFieldForCheck(f);
}
f.fieldGroup?.forEach((f) => f && options._detectChanges(f));
};
options.detectChanges = (f) => {
f.options.checkExpressions?.(f);
options._detectChanges(f);
};
options.resetModel = (model) => {
model = clone(model ?? options._initialModel);
if (field.model) {
Object.keys(field.model).forEach((k) => delete field.model[k]);
Object.assign(field.model, model || {});
}
observe(options, ['parentForm', 'submitted']).setValue(false, false);
options.build(field);
field.form.reset(field.model);
};
options.updateInitialValue = (model) => (options._initialModel = clone(model ?? field.model));
field.options.updateInitialValue();
}
initFieldOptions(field) {
reverseDeepMerge(field, {
id: getFieldId(`formly_${this.formId}`, field, field.index),
hooks: {},
modelOptions: {},
validation: { messages: {} },
props: !field.type || !hasKey(field)
? {}
: {
label: '',
placeholder: '',
disabled: false,
},
});
if (this.config.extras.resetFieldOnHide && field.resetOnHide !== false) {
field.resetOnHide = true;
}
if (field.type !== 'formly-template' &&
(field.template || field.expressions?.template || field.expressionProperties?.template)) {
field.type = 'formly-template';
}
if (!field.type && field.fieldGroup) {
field.type = 'formly-group';
}
if (field.type) {
this.config.getMergedField(field);
}
if (hasKey(field) && !isUndefined(field.defaultValue) && isUndefined(getFieldValue(field))) {
const isHidden = (f) => f.hide || f.expressions?.hide || f.hideExpression;
let setDefaultValue = !field.resetOnHide || !isHidden(field);
if (!isHidden(field) && field.resetOnHide) {
let parent = field.parent;
while (parent && !isHidden(parent)) {
parent = parent.parent;
}
setDefaultValue = !parent || !isHidden(parent);
}
if (setDefaultValue) {
assignFieldValue(field, field.defaultValue);
}
}
field.wrappers = field.wrappers || [];
}
getFieldComponentInstance(field) {
const componentRefInstance = () => {
let componentRef = this.config.resolveFieldTypeRef(field);
const fieldComponentRef = field._componentRefs?.slice(-1)[0];
if (fieldComponentRef instanceof ComponentRef &&
fieldComponentRef?.componentType === componentRef?.componentType) {
componentRef = fieldComponentRef;
}
return componentRef?.instance;
};
if (!field._proxyInstance) {
defineHiddenProp(field, '_proxyInstance', new Proxy({}, {
get: (_, prop) => componentRefInstance()?.[prop],
set: (_, prop, value) => (componentRefInstance()[prop] = value),
}));
}
return field._proxyInstance;
}
}
//# 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{ ComponentRef } from '@angular/core';\nimport { FormlyConfig } from '../../services/formly.config';\nimport { FormlyFieldConfigCache, FormlyValueChangeEvent, FormlyExtension, FormlyFieldConfig } from '../../models';\nimport {\n  getFieldId,\n  assignFieldValue,\n  isUndefined,\n  getFieldValue,\n  reverseDeepMerge,\n  defineHiddenProp,\n  clone,\n  getField,\n  markFieldForCheck,\n  hasKey,\n  observe,\n} from '../../utils';\nimport { Subject } from 'rxjs';\n\nexport class CoreExtension implements FormlyExtension {\n  private formId = 0;\n  constructor(private config: FormlyConfig) {}\n\n  prePopulate(field: FormlyFieldConfigCache) {\n    const root = field.parent;\n    this.initRootOptions(field);\n    this.initFieldProps(field);\n    if (root) {\n      Object.defineProperty(field, 'options', { get: () => root.options, configurable: true });\n      Object.defineProperty(field, 'model', {\n        get: () => (hasKey(field) && field.fieldGroup ? getFieldValue(field) : root.model),\n        configurable: true,\n      });\n    }\n\n    Object.defineProperty(field, 'get', {\n      value: (key: FormlyFieldConfig['key']) => getField(field, key),\n      configurable: true,\n    });\n\n    this.getFieldComponentInstance(field).prePopulate?.(field);\n  }\n\n  onPopulate(field: FormlyFieldConfigCache) {\n    this.initFieldOptions(field);\n    this.getFieldComponentInstance(field).onPopulate?.(field);\n    if (field.fieldGroup) {\n      field.fieldGroup.forEach((f, index) => {\n        if (f) {\n          Object.defineProperty(f, 'parent', { get: () => field, configurable: true });\n          Object.defineProperty(f, 'index', { get: () => index, configurable: true });\n        }\n        this.formId++;\n      });\n    }\n  }\n\n  postPopulate(field: FormlyFieldConfigCache) {\n    this.getFieldComponentInstance(field).postPopulate?.(field);\n  }\n\n  private initFieldProps(field: FormlyFieldConfigCache) {\n    field.props ??= field.templateOptions;\n    Object.defineProperty(field, 'templateOptions', {\n      get: () => field.props,\n      set: (props) => (field.props = props),\n      configurable: true,\n    });\n  }\n\n  private initRootOptions(field: FormlyFieldConfigCache) {\n    if (field.parent) {\n      return;\n    }\n\n    const options = field.options;\n    field.options.formState = field.options.formState || {};\n    if (!options.showError) {\n      options.showError = this.config.extras.showError;\n    }\n\n    if (!options.fieldChanges) {\n      defineHiddenProp(options, 'fieldChanges', new Subject<FormlyValueChangeEvent>());\n    }\n\n    if (!options._hiddenFieldsForCheck) {\n      options._hiddenFieldsForCheck = [];\n    }\n\n    options._markForCheck = (f) => {\n      console.warn(`Formly: 'options._markForCheck' is deprecated since v6.0, use 'options.detectChanges' instead.`);\n      options.detectChanges(f);\n    };\n\n    options._detectChanges = (f: FormlyFieldConfigCache) => {\n      if (f._componentRefs) {\n        markFieldForCheck(f);\n      }\n\n      f.fieldGroup?.forEach((f) => f && options._detectChanges(f));\n    };\n\n    options.detectChanges = (f: FormlyFieldConfigCache) => {\n      f.options.checkExpressions?.(f);\n      options._detectChanges(f);\n    };\n\n    options.resetModel = (model?: any) => {\n      model = clone(model ?? options._initialModel);\n      if (field.model) {\n        Object.keys(field.model).forEach((k) => delete field.model[k]);\n        Object.assign(field.model, model || {});\n      }\n\n      observe(options, ['parentForm', 'submitted']).setValue(false, false);\n      options.build(field);\n      field.form.reset(field.model);\n    };\n\n    options.updateInitialValue = (model?: any) => (options._initialModel = clone(model ?? field.model));\n    field.options.updateInitialValue();\n  }\n\n  private initFieldOptions(field: FormlyFieldConfigCache) {\n    reverseDeepMerge(field, {\n      id: getFieldId(`formly_${this.formId}`, field, field.index),\n      hooks: {},\n      modelOptions: {},\n      validation: { messages: {} },\n      props:\n        !field.type || !hasKey(field)\n          ? {}\n          : {\n              label: '',\n              placeholder: '',\n              disabled: false,\n            },\n    });\n\n    if (this.config.extras.resetFieldOnHide && field.resetOnHide !== false) {\n      field.resetOnHide = true;\n    }\n\n    if (\n      field.type !== 'formly-template' &&\n      (field.template || field.expressions?.template || field.expressionProperties?.template)\n    ) {\n      field.type = 'formly-template';\n    }\n\n    if (!field.type && field.fieldGroup) {\n      field.type = 'formly-group';\n    }\n\n    if (field.type) {\n      this.config.getMergedField(field);\n    }\n\n    if (hasKey(field) && !isUndefined(field.defaultValue) && isUndefined(getFieldValue(field))) {\n      const isHidden = (f: FormlyFieldConfig) => f.hide || f.expressions?.hide || f.hideExpression;\n      let setDefaultValue = !field.resetOnHide || !isHidden(field);\n      if (!isHidden(field) && field.resetOnHide) {\n        let parent = field.parent;\n        while (parent && !isHidden(parent)) {\n          parent = parent.parent;\n        }\n        setDefaultValue = !parent || !isHidden(parent);\n      }\n\n      if (setDefaultValue) {\n        assignFieldValue(field, field.defaultValue);\n      }\n    }\n\n    field.wrappers = field.wrappers || [];\n  }\n\n  private getFieldComponentInstance(field: FormlyFieldConfigCache) {\n    const componentRefInstance = () => {\n      let componentRef = this.config.resolveFieldTypeRef(field);\n\n      const fieldComponentRef = field._componentRefs?.slice(-1)[0];\n      if (\n        fieldComponentRef instanceof ComponentRef &&\n        fieldComponentRef?.componentType === componentRef?.componentType\n      ) {\n        componentRef = fieldComponentRef as any;\n      }\n\n      return componentRef?.instance as any;\n    };\n\n    if (!field._proxyInstance) {\n      defineHiddenProp(\n        field,\n        '_proxyInstance',\n        new Proxy({} as FormlyExtension, {\n          get: (_, prop) => componentRefInstance()?.[prop],\n          set: (_, prop, value) => (componentRefInstance()[prop] = value),\n        }),\n      );\n    }\n\n    return field._proxyInstance;\n  }\n}\n"]}