jaxon-php / jaxon-js

src/ajax/upload.js

/**

 * Class: jaxon.ajax.upload

 *

 * global: jaxon

 */


(function(self, dom, console) {

    /**

     * @param {object} oRequest A request object, created initially by a call to <jaxon.ajax.request.initialize>

     * @param {string=} oRequest.upload The HTML file upload field id

     *

     * @returns {boolean}

     */

    const initRequest = (oRequest) => {

        if (!oRequest.upload) {

            return false;

        }


        oRequest.upload = {

            id: oRequest.upload,

            input: null,

            form: null,

        };

        const input = dom.$(oRequest.upload.id);


        if (!input) {

            console.log('Unable to find input field for file upload with id ' + oRequest.upload.id);

console.log looks like debug code. Are you sure you do not want to remove it?

            return false;

        }

        if (input.type !== 'file') {

            console.log('The upload input field with id ' + oRequest.upload.id + ' is not of type file');

            return false;

        }

        if (input.files.length === 0) {

            console.log('There is no file selected for upload in input field with id ' + oRequest.upload.id);

            return false;

        }

        if (input.name === undefined) {

            console.log('The upload input field with id ' + oRequest.upload.id + ' has no name attribute');

            return false;

        }

        oRequest.upload.input = input;

        oRequest.upload.form = input.form;

        return true;

    };


    /**

     * Check upload data and initialize the request.

     *

     * @param {object} oRequest A request object, created initially by a call to <jaxon.ajax.request.initialize>

     *

     * @returns {void}

     */

    self.initialize = (oRequest) => {

        // The content type shall not be set when uploading a file with FormData.

        // It will be set by the browser.

        if (!initRequest(oRequest)) {

            oRequest.postHeaders['content-type'] = oRequest.contentType;

        }

    }

})(jaxon.ajax.upload, jaxon.utils.dom, console);