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Contents
/* global text, dom, axe */
/**
* Returns the visible text of the virtual node
* NOTE: when calculating the text or accessible text of a node that includes shadow
* roots attached to it or its children, the flattened tree must be considered
* rather than the "light DOM"
* @method visibleVirtual
* @memberof axe.commons.text
* @instance
* @param {VirtualNode} element
* @param {Boolean} screenReader When provided, will evaluate visibility from the perspective of a screen reader
* @param {Boolean} noRecursing When False, the result will contain text from the element and it's children.
* When True, the result will only contain text from the element
* @return {String}
*/
text.visibleVirtual = function(element, screenReader, noRecursing) {
const result = element.children
.map(child => {
if (child.actualNode.nodeType === 3) {
// filter on text nodes
const nodeValue = child.actualNode.nodeValue;
if (nodeValue && dom.isVisible(element.actualNode, screenReader)) {
return nodeValue;
}
} else if (!noRecursing) {
return text.visibleVirtual(child, screenReader);
}
})
.join('');
return text.sanitize(result);
};
/**
* Finds virtual node and calls visibleVirtual()
* IMPORTANT: This method requires the composed tree at axe._tree
* @param {Element} element
* @param {Boolean} screenReader When provided, will evaluate visibility from the perspective of a screen reader
* @param {Boolean} noRecursing When False, the result will contain text from the element and it's children.
* When True, the result will only contain text from the element
* @return {String}
*/
text.visible = function(element, screenReader, noRecursing) {
element = axe.utils.getNodeFromTree(element);
return text.visibleVirtual(element, screenReader, noRecursing);
};
Version data entries
271 entries across 271 versions & 1 rubygems