Sha256: 87c4997727ea937ebabf732bfc401350710847a2749e5501526103fffa87d1eb
Contents?: true
Size: 1.98 KB
Versions: 10
Compression:
Stored size: 1.98 KB
Contents
const { dom, color, text } = axe.commons;
if (!dom.isVisible(node, false)) {
return true;
}
const noScroll = !!(options || {}).noScroll;
const bgNodes = [];
const bgColor = color.getBackgroundColor(node, bgNodes, noScroll);
const fgColor = color.getForegroundColor(node, noScroll, bgColor);
const nodeStyle = window.getComputedStyle(node);
const fontSize = parseFloat(nodeStyle.getPropertyValue('font-size'));
const fontWeight = nodeStyle.getPropertyValue('font-weight');
const bold =
['bold', 'bolder', '600', '700', '800', '900'].indexOf(fontWeight) !== -1;
const cr = color.hasValidContrastRatio(bgColor, fgColor, fontSize, bold);
// truncate ratio to three digits while rounding down
// 4.499 = 4.49, 4.019 = 4.01
const truncatedResult = Math.floor(cr.contrastRatio * 100) / 100;
// if fgColor or bgColor are missing, get more information.
let missing;
if (bgColor === null) {
missing = color.incompleteData.get('bgColor');
}
const equalRatio = truncatedResult === 1;
const shortTextContent =
text.visibleVirtual(virtualNode, false, true).length === 1;
if (equalRatio) {
missing = color.incompleteData.set('bgColor', 'equalRatio');
} else if (shortTextContent) {
// Check that the text content is a single character long
missing = 'shortTextContent';
}
// need both independently in case both are missing
const data = {
fgColor: fgColor ? fgColor.toHexString() : undefined,
bgColor: bgColor ? bgColor.toHexString() : undefined,
contrastRatio: cr ? truncatedResult : undefined,
fontSize: `${((fontSize * 72) / 96).toFixed(1)}pt (${fontSize}px)`,
fontWeight: bold ? 'bold' : 'normal',
missingData: missing,
expectedContrastRatio: cr.expectedContrastRatio + ':1'
};
this.data(data);
// We don't know, so we'll put it into Can't Tell
if (
fgColor === null ||
bgColor === null ||
equalRatio ||
(shortTextContent && !cr.isValid)
) {
missing = null;
color.incompleteData.clear();
this.relatedNodes(bgNodes);
return undefined;
}
if (!cr.isValid) {
this.relatedNodes(bgNodes);
}
return cr.isValid;
Version data entries
10 entries across 10 versions & 1 rubygems