wikimedia/mediawiki-extensions-VisualEditor

/*!
 * VisualEditor ContentEditable MWEntityNode class.
 *
 * @copyright See AUTHORS.txt
 * @license The MIT License (MIT); see LICENSE.txt
 */

/**
 * ContentEditable MediaWiki entity node.
 *
 * @class
 * @extends ve.ce.LeafNode
 * @constructor
 * @param {ve.dm.MWEntityNode} model Model to observe
 * @param {Object} [config] Configuration options
 */
ve.ce.MWEntityNode = function VeCeMWEntityNode() {
    // Parent constructor
    ve.ce.MWEntityNode.super.apply( this, arguments );

    // DOM changes
    this.$element.addClass( 've-ce-mwEntityNode' );
    // Need CE=false to prevent selection issues
    this.$element.prop( 'contentEditable', 'false' );

    // Events
    this.model.connect( this, { update: 'onUpdate' } );

    // Initialization
    this.onUpdate();
};

/* Inheritance */

OO.inheritClass( ve.ce.MWEntityNode, ve.ce.LeafNode );

/* Static Properties */

ve.ce.MWEntityNode.static.name = 'mwEntity';

/* Methods */

/**
 * Handle model update events.
 */
ve.ce.MWEntityNode.prototype.onUpdate = function () {
    const whitespaceHtmlChars = ve.visibleWhitespaceCharacters,
        significantWhitespace = this.getModel().getParent().hasSignificantWhitespace();

    let chr = this.model.getAttribute( 'character' );
    if ( chr === '\u00a0' ) {
        //   non-breaking space
        this.$element
            .addClass( 've-ce-mwEntityNode-nbsp' )
            .attr( 'title', mw.msg( 'visualeditor-tooltip-non-breaking-space' ) );
    } else {
        this.$element
            .removeClass( 've-ce-mwEntityNode-nbsp' )
            .removeAttr( 'title' );
    }

    if ( !significantWhitespace && Object.prototype.hasOwnProperty.call( whitespaceHtmlChars, chr ) ) {
        chr = whitespaceHtmlChars[ chr ];
    }

    this.$element.text( chr );
};

/* Registration */

ve.ce.nodeFactory.register( ve.ce.MWEntityNode );