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Dir : ~/home/cite5577/www/lib/pkp/js/controllers/form/

Edit File: FileUploadFormHandler.js

/**
 * @file js/controllers/form/FileUploadFormHandler.js
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2000-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class FileUploadFormHandler
 * @ingroup js_controllers_form
 *
 * @brief File upload form handler.
 */
(function($) {

/**
	 * @constructor
	 *
	 * @extends $.pkp.controllers.form.AjaxFormHandler
	 *
	 * @param {jQueryObject} $form The wrapped HTML form element.
	 * @param {{
	 *  readOnly: boolean,
	 *  resetUploader: boolean,
	 *  $uploader: jQueryObject,
	 *  $preview: jQueryObject,
	 *  uploaderOptions: Object
	 *  }} options Form validation options.
	 */
	$.pkp.controllers.form.FileUploadFormHandler =
			function($form, options) {

this.parent($form, options);

if (options.readOnly === undefined || options.readOnly === null) {
			if (options.resetUploader !== undefined) {
				this.resetUploader_ = options.resetUploader;
			}

// An optional preview container for the file. If this option is passed
			// the preview container will be hidden when a new file is uploaded and
			// when the `fileDeleted` event is fired.
			if (options.$preview !== undefined && options.$preview.length) {
				this.$preview = options.$preview;
				this.bind('fileDeleted', this.callbackWrapper(this.fileDeleted));
			}

// Attach the uploader handler to the uploader HTML element.
			this.attachUploader_(options.$uploader, options.uploaderOptions);

this.uploaderSetup(options.$uploader);
		}

};
	$.pkp.classes.Helper.inherits(
			$.pkp.controllers.form.FileUploadFormHandler,
			$.pkp.controllers.form.AjaxFormHandler);

/**
	 * Reset the uploader widget flag.
	 * @private
	 * @type {boolean}
	 */
	$.pkp.controllers.form.FileUploadFormHandler.prototype.
			resetUploader_ = false;

/**
	 * The file preview DOM element. A jQuery object when available
	 * @protected
	 * @type {boolean|jQueryObject}
	 */
	$.pkp.controllers.form.FileUploadFormHandler.prototype.
			$preview = false;

//
	// Extended methods from AjaxFormHandler.
	//
	/**
	 * @inheritDoc
	 */
	$.pkp.controllers.form.FileUploadFormHandler.prototype.handleResponse =
			function(formElement, jsonData) {

var fileUploader;

if (this.resetUploader_) {
			fileUploader = $('#plupload', this.getHtmlElement())
					.plupload('getUploader');
			fileUploader.splice();
			fileUploader.refresh();

// Reset the temporary file id value.
			$('#temporaryFileId', this.getHtmlElement()).val('');
		}

return /** @type {boolean} */ (
				this.parent('handleResponse', formElement, jsonData));
	};

//
	// Public methods
	//
	/**
	 * The setup callback of the uploader.
	 * @param {jQueryObject} $uploader Element that contains the plupload object.
	 */
	$.pkp.controllers.form.FileUploadFormHandler.prototype.
			uploaderSetup = function($uploader) {

var uploadHandler = $.pkp.classes.Handler.getHandler($uploader);
		// Subscribe to uploader events.
		uploadHandler.pluploader.bind('FileUploaded',
				this.callbackWrapper(this.handleUploadResponse));
	};

/**
	 * Handle the response of a "file upload" request.
	 * @param {Object} caller The original context in which the callback was called.
	 * @param {Object} pluploader The pluploader object.
	 * @param {Object} file The data of the uploaded file.
	 * @param {{response: string}} ret The serialized JSON response.
	 */
	$.pkp.controllers.form.FileUploadFormHandler.prototype.
			handleUploadResponse = function(caller, pluploader, file, ret) {

// Handle the server's JSON response.
		var jsonData = /** @type {boolean|{uploadedFile: Object,
				  temporaryFileId: string, content: string}} */
				(this.handleJson($.parseJSON(ret.response))),
				$uploadForm, $temporaryFileId;
		if (jsonData !== false) {
			// Trigger the file uploaded event.
			this.trigger('fileUploaded', [jsonData.uploadedFile]);

// Hide preview if one exists
			if (this.$preview) {
				this.$preview.hide();
			}

if (jsonData.content === '') {
				// Successful upload to temporary file; save to main form.
				$uploadForm = this.getHtmlElement();
				$temporaryFileId = $uploadForm.find('#temporaryFileId');
				$temporaryFileId.val(jsonData.temporaryFileId);
			} else {
				// Display the revision confirmation form.
				this.replaceWith(jsonData.content);
			}
		}
	};

/**
	 * Fires when the file has been removed
	 */
	$.pkp.controllers.form.FileUploadFormHandler.prototype.
			fileDeleted = function() {

if (this.$preview) {
			this.$preview.hide();
		}
	};

//
	// Private methods
	//
	/**
	 * Attach the uploader handler.
	 * @private
	 * @param {jQueryObject} $uploader The wrapped HTML uploader element.
	 * @param {Object} options Uploader options.
	 */
	$.pkp.controllers.form.FileUploadFormHandler.prototype.
			attachUploader_ = function($uploader, options) {

// Attach the uploader handler to the uploader div.
		$uploader.pkpHandler('$.pkp.controllers.UploaderHandler', options);
	};

}(jQuery));