all files / src/dm/ ve.dm.TableCellableNode.js

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/*!
 * VisualEditor DataModel TableCellableNode class.
 *
 * @copyright 2011-2019 VisualEditor Team and others; see http://ve.mit-license.org
 */
 
/**
 * DataModel node which can behave as a table cell
 *
 * @class
 *
 * @abstract
 * @constructor
 */
ve.dm.TableCellableNode = function VeDmTableCellableNode() {
	// Events
	this.connect( this, {
		attributeChange: 'onCellableAttributeChange'
	} );
};
 
/* Inheritance */
 
OO.initClass( ve.dm.TableCellableNode );
 
/* Static Properties */
 
ve.dm.TableCellableNode.static.isCellable = true;
 
/* Static Methods */
 
ve.dm.TableCellableNode.static.setAttributes = function ( attributes, domElements ) {
	var style = domElements[ 0 ].nodeName.toLowerCase() === 'th' ? 'header' : 'data',
		colspan = domElements[ 0 ].getAttribute( 'colspan' ),
		rowspan = domElements[ 0 ].getAttribute( 'rowspan' );
 
	attributes.style = style;
 
	if ( colspan !== null ) {
		attributes.originalColspan = colspan;
		if ( colspan !== '' && !isNaN( Number( colspan ) ) ) {
			attributes.colspan = Number( colspan );
		}
	}
 
	if ( rowspan !== null ) {
		attributes.originalRowspan = rowspan;
		if ( rowspan !== '' && !isNaN( Number( rowspan ) ) ) {
			attributes.rowspan = Number( rowspan );
		}
	}
};
 
ve.dm.TableCellableNode.static.applyAttributes = function ( attributes, domElement ) {
	var spans = {
		colspan: attributes.colspan,
		rowspan: attributes.rowspan
	};
 
	// Ignore spans of 1 unless they were in the original HTML
	Iif ( attributes.colspan === 1 && Number( attributes.originalColspan ) !== 1 ) {
		spans.colspan = null;
	}
 
	Iif ( attributes.rowspan === 1 && Number( attributes.originalRowspan ) !== 1 ) {
		spans.rowspan = null;
	}
 
	// Use original value if the numerical value didn't change, or if we didn't set one
	Eif ( attributes.colspan === undefined || attributes.colspan === Number( attributes.originalColspan ) ) {
		spans.colspan = attributes.originalColspan;
	}
 
	Eif ( attributes.rowspan === undefined || attributes.rowspan === Number( attributes.originalRowspan ) ) {
		spans.rowspan = attributes.originalRowspan;
	}
 
	ve.setDomAttributes( domElement, spans );
};
 
/* Methods */
 
/**
 * Get the number of rows the cell spans
 *
 * @return {number} Rows spanned
 */
ve.dm.TableCellableNode.prototype.getRowspan = function () {
	return this.element.attributes.rowspan || 1;
};
 
/**
 * Get the number of columns the cell spans
 *
 * @return {number} Columns spanned
 */
ve.dm.TableCellableNode.prototype.getColspan = function () {
	return this.element.attributes.colspan || 1;
};
 
/**
 * Get number of columns and rows the cell spans
 *
 * @return {Object} Object containing 'col' and 'row'
 */
ve.dm.TableCellableNode.prototype.getSpans = function () {
	return {
		col: this.getColspan(),
		row: this.getRowspan()
	};
};
 
/**
 * Get the style of the cell
 *
 * @return {string} Style, 'header' or 'data'
 */
ve.dm.TableCellableNode.prototype.getStyle = function () {
	return this.element.attributes.style || 'data';
};
 
/**
 * Handle attributes changes
 *
 * @param {string} key Attribute key
 * @param {string} from Old value
 * @param {string} to New value
 */
ve.dm.TableCellableNode.prototype.onCellableAttributeChange = function ( key ) {
	if ( this.getParent() && ( key === 'colspan' || key === 'rowspan' ) ) {
		// In practice the matrix should already be invalidated as you
		// shouldn't change a span without adding/removing other cells,
		// but it is possible to just change spans if you don't mind a
		// non-rectangular table.
		this.findParent( ve.dm.TableNode ).getMatrix().invalidate();
	}
};