| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| export class File extends HTMLElement { |
| |
| constructor() { |
| super(); |
| } |
| |
| connectedCallback(): void { |
| this.input.form.enctype = "multipart/form-data"; |
| |
| this.input.addEventListener("change", this.select.bind(this)); |
| } |
| |
| get input(): HTMLInputElement { |
| return this.querySelector(".custom-file-input"); |
| } |
| |
| get label(): HTMLInputElement { |
| return this.querySelector(".custom-file-label"); |
| } |
| |
| select(event: MouseEvent): void { |
| if (this.input.value === "") { |
| this.label.classList.add("tobago-file-placeholder"); |
| this.label.textContent = this.input.placeholder; |
| } else { |
| this.label.classList.remove("tobago-file-placeholder"); |
| |
| let text: string; |
| if (this.input.multiple) { |
| const format: string = this.input.dataset.tobagoFileMultiFormat; |
| text = format.replace("{}", String(this.input.files.length)); |
| } else { |
| text = this.input.value; |
| // remove path, if any. Some old browsers set the path, others like webkit uses the prefix "C:\path\". |
| const pos: number = Math.max(text.lastIndexOf("/"), text.lastIndexOf("\\")); |
| if (pos >= 0) { |
| text = text.substr(pos + 1); |
| } |
| } |
| this.label.textContent = text; |
| } |
| } |
| } |
| |
| document.addEventListener("DOMContentLoaded", function (event: Event): void { |
| window.customElements.define("tobago-file", File); |
| }); |