@clr/angular
Version:
Angular components for Clarity
101 lines • 15 kB
JavaScript
/*
* Copyright (c) 2016-2025 Broadcom. All Rights Reserved.
* The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
* This software is released under MIT license.
* The full license information can be found in LICENSE in the root directory of this project.
*/
import { Directive, Input } from '@angular/core';
import { NG_VALIDATORS } from '@angular/forms';
import * as i0 from "@angular/core";
export class ClrFileInputValidator {
constructor(elementRef) {
this.elementRef = elementRef;
}
validate(control) {
const files = control.value;
const fileInputElement = this.elementRef.nativeElement;
const errors = {};
// required validation (native attribute)
if (fileInputElement.required && files?.length === 0) {
errors.required = true;
}
const accept = fileInputElement.accept ? fileInputElement.accept.split(',').map(type => type.trim()) : null;
if (files?.length > 0 && (accept || this.minFileSize || this.maxFileSize)) {
for (let i = 0; i < files.length; i++) {
const file = files.item(i);
// accept validation (native attribute)
if (accept && accept.length) {
if (!this.validateAccept(file, accept)) {
errors.accept = errors.accept || [];
errors.accept.push({
name: file.name,
accept,
type: file.type || '',
extension: this.getSuffixByDepth(file.name, 2), // last up to 2 parts for reporting
});
}
}
// min file validation (custom input)
if (this.minFileSize && file.size < this.minFileSize) {
errors.minFileSize = errors.minFileSize || [];
errors.minFileSize.push({ name: file.name, minFileSize: this.minFileSize, actualFileSize: file.size });
}
// max file validation (custom input)
if (this.maxFileSize && file.size > this.maxFileSize) {
errors.maxFileSize = errors.maxFileSize || [];
errors.maxFileSize.push({ name: file.name, maxFileSize: this.maxFileSize, actualFileSize: file.size });
}
}
}
return Object.keys(errors).length ? errors : null;
}
getSuffixByDepth(filename, depth) {
const match = filename.toLowerCase().match(new RegExp(`(\\.[^.]+){1,${depth}}$`, 'i'));
return match ? match[0] : '';
}
validateAccept(file, acceptList) {
const name = file.name.toLowerCase();
const type = (file.type || '').toLowerCase();
for (const entryRaw of acceptList) {
const entry = entryRaw.trim().toLowerCase();
if (!entry) {
continue;
}
// Extension check
if (entry.startsWith('.')) {
const depth = (entry.match(/\./g) || []).length;
if (this.getSuffixByDepth(name, depth) === entry) {
return true;
}
continue;
}
// MIME check
if (entry.endsWith('/*')) {
const prefix = entry.slice(0, entry.length - 1); // keep trailing slash
if (type.startsWith(prefix)) {
return true;
}
}
else if (entry.includes('/') && type === entry) {
return true;
}
}
return false;
}
}
ClrFileInputValidator.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.2", ngImport: i0, type: ClrFileInputValidator, deps: [{ token: i0.ElementRef }], target: i0.ɵɵFactoryTarget.Directive });
ClrFileInputValidator.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "15.2.2", type: ClrFileInputValidator, selector: "input[type=\"file\"][clrFileInput]", inputs: { minFileSize: ["clrMinFileSize", "minFileSize"], maxFileSize: ["clrMaxFileSize", "maxFileSize"] }, providers: [{ provide: NG_VALIDATORS, useExisting: ClrFileInputValidator, multi: true }], ngImport: i0 });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.2", ngImport: i0, type: ClrFileInputValidator, decorators: [{
type: Directive,
args: [{
selector: 'input[type="file"][clrFileInput]',
providers: [{ provide: NG_VALIDATORS, useExisting: ClrFileInputValidator, multi: true }],
}]
}], ctorParameters: function () { return [{ type: i0.ElementRef }]; }, propDecorators: { minFileSize: [{
type: Input,
args: ['clrMinFileSize']
}], maxFileSize: [{
type: Input,
args: ['clrMaxFileSize']
}] } });
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All Rights Reserved.\n * The term \"Broadcom\" refers to Broadcom Inc. and/or its subsidiaries.\n * This software is released under MIT license.\n * The full license information can be found in LICENSE in the root directory of this project.\n */\n\nimport { Directive, ElementRef, Input } from '@angular/core';\nimport { AbstractControl, NG_VALIDATORS, ValidationErrors, Validator } from '@angular/forms';\n\nimport { ClrFileListValidationErrors } from './file-input-validator-errors';\n\n@Directive({\n  selector: 'input[type=\"file\"][clrFileInput]',\n  providers: [{ provide: NG_VALIDATORS, useExisting: ClrFileInputValidator, multi: true }],\n})\nexport class ClrFileInputValidator implements Validator {\n  @Input('clrMinFileSize') minFileSize: number;\n  @Input('clrMaxFileSize') maxFileSize: number;\n\n  constructor(private readonly elementRef: ElementRef<HTMLInputElement>) {}\n\n  validate(control: AbstractControl<FileList>): ValidationErrors {\n    const files = control.value;\n    const fileInputElement = this.elementRef.nativeElement;\n\n    const errors: ClrFileListValidationErrors = {};\n\n    // required validation (native attribute)\n    if (fileInputElement.required && files?.length === 0) {\n      errors.required = true;\n    }\n\n    const accept = fileInputElement.accept ? fileInputElement.accept.split(',').map(type => type.trim()) : null;\n\n    if (files?.length > 0 && (accept || this.minFileSize || this.maxFileSize)) {\n      for (let i = 0; i < files.length; i++) {\n        const file = files.item(i);\n\n        // accept validation (native attribute)\n        if (accept && accept.length) {\n          if (!this.validateAccept(file, accept)) {\n            errors.accept = errors.accept || [];\n            errors.accept.push({\n              name: file.name,\n              accept,\n              type: file.type || '',\n              extension: this.getSuffixByDepth(file.name, 2), // last up to 2 parts for reporting\n            });\n          }\n        }\n\n        // min file validation (custom input)\n        if (this.minFileSize && file.size < this.minFileSize) {\n          errors.minFileSize = errors.minFileSize || [];\n          errors.minFileSize.push({ name: file.name, minFileSize: this.minFileSize, actualFileSize: file.size });\n        }\n\n        // max file validation (custom input)\n        if (this.maxFileSize && file.size > this.maxFileSize) {\n          errors.maxFileSize = errors.maxFileSize || [];\n          errors.maxFileSize.push({ name: file.name, maxFileSize: this.maxFileSize, actualFileSize: file.size });\n        }\n      }\n    }\n\n    return Object.keys(errors).length ? errors : null;\n  }\n\n  private getSuffixByDepth(filename: string, depth: number): string {\n    const match = filename.toLowerCase().match(new RegExp(`(\\\\.[^.]+){1,${depth}}$`, 'i'));\n    return match ? match[0] : '';\n  }\n\n  private validateAccept(file: File, acceptList: string[]): boolean {\n    const name = file.name.toLowerCase();\n    const type = (file.type || '').toLowerCase();\n\n    for (const entryRaw of acceptList) {\n      const entry = entryRaw.trim().toLowerCase();\n      if (!entry) {\n        continue;\n      }\n\n      // Extension check\n      if (entry.startsWith('.')) {\n        const depth = (entry.match(/\\./g) || []).length;\n        if (this.getSuffixByDepth(name, depth) === entry) {\n          return true;\n        }\n        continue;\n      }\n\n      // MIME check\n      if (entry.endsWith('/*')) {\n        const prefix = entry.slice(0, entry.length - 1); // keep trailing slash\n        if (type.startsWith(prefix)) {\n          return true;\n        }\n      } else if (entry.includes('/') && type === entry) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n}\n"]}