52 lines
1.7 KiB
TypeScript
52 lines
1.7 KiB
TypeScript
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// (C) Copyright 2015 Martin Dougiamas
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import { Pipe, PipeTransform } from '@angular/core';
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import { CoreLoggerProvider } from '../providers/logger';
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import { CoreTextUtilsProvider } from '../providers/utils/text';
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/**
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* Pipe to turn a number in bytes to a human readable size (e.g. 5,25 MB).
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*/
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@Pipe({
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name: 'coreBytesToSize',
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})
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export class CoreBytesToSizePipe implements PipeTransform {
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protected logger;
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constructor(logger: CoreLoggerProvider, private textUtils: CoreTextUtilsProvider) {
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this.logger = logger.getInstance('CoreBytesToSizePipe');
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}
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/**
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* Takes a number and turns it to a human readable size.
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*
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* @param {number|string} value The bytes to convert.
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* @return {string} Readable bytes.
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*/
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transform(value: number|string) : string {
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if (typeof value == 'string') {
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// Convert the value to a number.
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const numberValue = parseInt(value, 10);
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if (isNaN(numberValue)) {
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this.logger.error('Invalid value received', value);
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return value;
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}
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value = numberValue;
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}
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return this.textUtils.bytesToSize(value);
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}
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}
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