106 lines
3.6 KiB
JavaScript
106 lines
3.6 KiB
JavaScript
import Dropzone from "dropzone";
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import {DirectUpload} from "activestorage"
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import $ from 'jquery';
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class ActiveStorageDropzone {
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constructor(dropzoneClass, uploaderClass) {
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this.DropzoneClass = dropzoneClass || Dropzone
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this.UploaderClass = uploaderClass || DirectUpload
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}
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init(element) {
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var acceptedFiles = $(element).data("accepted-files") || "image/*";
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var dictDefaultMessage = $(element).data("placeholder") || "Drop files here";
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var submitButton = $($(element).data("submit-button"));
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var that = this;
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this.myDropzone = new this.DropzoneClass(element, {
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url: "/",
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autoQueue: true,
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acceptedFiles: acceptedFiles,
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parallelUploads: 30,
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dictDefaultMessage: dictDefaultMessage,
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init: function () {
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this.on("sending", (file, xhr, formData) => {
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var createUpload = (dropzone, upload) => {
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upload.create((error, blob) => {
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if (error) {
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dropzone.emit("error", file, this.options.dictUploadCanceled);
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} else {
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const hiddenField = document.createElement('input');
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hiddenField.setAttribute("type", "hidden");
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hiddenField.setAttribute("value", blob.signed_id);
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hiddenField.name = name;
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document.querySelector('form').appendChild(hiddenField);
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dropzone.emit("success", file);
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dropzone.emit("complete", file);
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}
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// In either case, re-enable the provided submit button
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if (submitButton) {
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submitButton.prop("disabled", false);
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}
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});
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}
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// Disable any provided submit button
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if (submitButton) {
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submitButton.prop("disabled", true);
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}
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// Cancel the default server request
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xhr.addEventListener("loadstart", () => {
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xhr.abort();
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});
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// Start the direct upload
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var input = document.getElementById(element.dataset.fileInputId);
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var name = input.name;
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var url = input.dataset.directUploadUrl;
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var delegate = {
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directUploadWillStoreFileWithXHR: (request) => {
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request.upload.addEventListener("progress", (event) => {
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this.emit("uploadprogress", file, 100 * (event.loaded / event.totalSize), event.loaded);
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});
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}
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}
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var upload = new that.UploaderClass(file, url, delegate);
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createUpload(this, upload);
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});
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},
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});
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var addExistingFiles = (dropzone, files) => {
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files.forEach((file, index) => {
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var width = dropzone.options.thumbnailWidth;
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var height = dropzone.options.thumbnailHeight;
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var method = dropzone.options.thumbnailMethod;
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var thumbFn = (thumbnail) => {
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this.myDropzone.emit('thumbnail', file, thumbnail);
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}
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dropzone.emit("addedfile", file);
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if (file.type.indexOf("image") >= 0) {
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dropzone.createThumbnailFromUrl(file, width, height, method, true, thumbFn, "Anonymous");
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}
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dropzone.emit("complete", file);
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})
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}
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// Add existing files to the dropzone
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const existingFiles = $(element).data("existingFiles")
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addExistingFiles(this.myDropzone, existingFiles);
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}
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}
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Dropzone.autoDiscover = false;
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export default ActiveStorageDropzone;
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document.addEventListener("turbolinks:load", function () {
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$("[data-behavior=dropzone]").each(function (index, element) {
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const dropzone = new ActiveStorageDropzone
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dropzone.init(element);
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});
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});
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