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ef965ebdfd
* satisfied array-callback-return rule * satisfying no-invalid-this rule * fixed invalid-this issues * changed isNotEqual to arrow function * added rule func-style * added return false to satisfy array-callback-return rule Co-authored-by: Joel McKinnon <jmckinnon@apple.com> Co-authored-by: Joshi <simplyrender@gmail.com> Co-authored-by: Andrew Henry <akhenry@gmail.com>
94 lines
3.2 KiB
JavaScript
94 lines
3.2 KiB
JavaScript
/*****************************************************************************
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* Open MCT, Copyright (c) 2014-2018, United States Government
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* as represented by the Administrator of the National Aeronautics and Space
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* Administration. All rights reserved.
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*
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* Open MCT is licensed under the Apache License, Version 2.0 (the
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* "License"); 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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* 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* Open MCT includes source code licensed under additional open source
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* licenses. See the Open Source Licenses file (LICENSES.md) included with
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* this source code distribution or the Licensing information page available
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* at runtime from the About dialog for additional information.
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*****************************************************************************/
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define(["zepto"], function ($) {
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/**
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* The FileInputService provides an interface for triggering a file input.
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*
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* @constructor
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* @memberof platform/forms
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*/
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function FileInputService() {
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}
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/**
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* Creates, triggers, and destroys a file picker element and returns a
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* promise for an object containing the chosen file's name and contents.
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*
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* @returns {Promise} promise for an object containing file meta-data
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*/
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FileInputService.prototype.getInput = function () {
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var input = this.newInput();
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var read = this.readFile;
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var fileInfo = {};
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var file;
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return new Promise(function (resolve, reject) {
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input.trigger("click");
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input.on('change', function (event) {
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// eslint-disable-next-line no-invalid-this
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file = this.files[0];
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input.remove();
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if (file) {
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read(file)
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.then(function (contents) {
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fileInfo.name = file.name;
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fileInfo.body = contents;
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resolve(fileInfo);
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}, function () {
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reject("File read error");
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});
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}
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});
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});
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};
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FileInputService.prototype.readFile = function (file) {
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var fileReader = new FileReader();
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return new Promise(function (resolve, reject) {
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fileReader.onload = function (event) {
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resolve(event.target.result);
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};
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fileReader.onerror = function () {
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return reject(event.target.result);
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};
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fileReader.readAsText(file);
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});
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};
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FileInputService.prototype.newInput = function () {
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var input = $(document.createElement('input'));
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input.attr("type", "file");
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input.css("display", "none");
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$('body').append(input);
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return input;
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};
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return FileInputService;
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});
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