| 1 | import { exportaAHtml } from "./exportaAHtml.js" |
| 2 | import { getImgParaElementoHtml } from "./muestraObjeto.js" |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | export function muestraImagenSeleccionada(raizHtml, input) { |
| 9 | return new Promise((resolve, reject) => { |
| 10 | setTimeout(() => { |
| 11 | |
| 12 | const img = getImgParaElementoHtml(raizHtml, input) |
| 13 | if (img !== null) { |
| 14 | try { |
| 15 | |
| 16 | const dataUrl = getDataUrlDeSeleccion(input) |
| 17 | if (dataUrl === "") { |
| 18 | |
| 19 | const file = input.dataset.file |
| 20 | if (file === undefined || file === "") { |
| 21 | img.hidden = true |
| 22 | img.src = "" |
| 23 | } else { |
| 24 | img.hidden = false |
| 25 | img.src = file |
| 26 | } |
| 27 | |
| 28 | } else { |
| 29 | |
| 30 | img.hidden = false |
| 31 | img.src = dataUrl |
| 32 | |
| 33 | } |
| 34 | |
| 35 | resolve(true) |
| 36 | |
| 37 | } catch (error) { |
| 38 | |
| 39 | img.hidden = true |
| 40 | |
| 41 | reject(error) |
| 42 | |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | }, |
| 47 | 500) |
| 48 | }) |
| 49 | } |
| 50 | exportaAHtml(muestraImagenSeleccionada) |
| 51 | |
| 52 | |
| 53 | |
| 54 | |
| 55 | export function getDataUrlDeSeleccion(input) { |
| 56 | const seleccion = getArchivoSeleccionado(input) |
| 57 | if (seleccion === null) { |
| 58 | return "" |
| 59 | } else { |
| 60 | return URL.createObjectURL(seleccion) |
| 61 | } |
| 62 | } |
| 63 | exportaAHtml(getDataUrlDeSeleccion) |
| 64 | |
| 65 | |
| 66 | |
| 67 | |
| 68 | |
| 69 | export function getArchivoSeleccionado(input) { |
| 70 | const seleccion = input.files |
| 71 | if (seleccion === null || seleccion.length === 0) { |
| 72 | return null |
| 73 | } else { |
| 74 | return seleccion.item(0) |
| 75 | } |
| 76 | } |
| 77 | exportaAHtml(getArchivoSeleccionado) |