Proyectos de Subversion Moodle

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**

 * AI Modal for Tiny.

 *

 * @module      tiny_aiplacement/mediaimage

 * @copyright   2024 Matt Porritt <matt.porritt@moodle.com>

 * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

import {getString} from 'core/str';

import MediaImage from 'tiny_media/image';

import Notification from 'core/notification';

import {prefetchStrings} from 'core/prefetch';

import {MAX_LENGTH_ALT} from 'tiny_media/imagehelpers';

prefetchStrings('core_ai', [

    'contentwatermark',

]);

export default class AiMediaImage extends MediaImage {

    constructor(editor, url, alt) {

        super(editor); // Call the parent class constructor

        this.generatedImageUrl = url;

        this.altText = alt;

        getString('contentwatermark', 'core_ai').then((watermark) => {

            this.watermark = watermark;

            return;

        }).catch(Notification.exception);

    }

    getSelectedImage() {

        const imgElement = document.createElement('img');

        // Set attributes for the img element

        imgElement.src = this.generatedImageUrl;

        imgElement.alt = this.truncateAltText(this.altText);

        return imgElement;

    }

    /**

     * Truncate the alt text if it is longer than the maximum length.

     * @param {String} altText The alt text

     * @return {string} The truncated alt text

     */

    truncateAltText(altText) {

        const maximumAltTextLength = MAX_LENGTH_ALT;

        const watermark = ' - ' + this.watermark;

        const ellipsis = '...';

        // Append the watermark to the alt text.

        if (altText.length + watermark.length <= maximumAltTextLength) {

            altText = altText + watermark;

        } else {

            const remainingLength = maximumAltTextLength - watermark.length - ellipsis.length;

            altText = altText.substring(0, remainingLength) + ellipsis + watermark;

        }

        return altText;

    }

}