htmlhint
Version:
The Static Code Analysis Tool for your HTML
38 lines • 3.49 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = {
id: 'meta-viewport-require',
description: '<meta name="viewport"> with non-blank content must be present in <head> tag.',
init(parser, reporter) {
let headSeen = false;
let metaViewportSeen = false;
let metaViewportContent = '';
let headEvent = null;
const onTagStart = (event) => {
const tagName = event.tagName.toLowerCase();
if (tagName === 'head') {
headSeen = true;
headEvent = event;
}
else if (tagName === 'meta') {
const mapAttrs = parser.getMapAttrs(event.attrs);
if (mapAttrs['name'] && mapAttrs['name'].toLowerCase() === 'viewport') {
metaViewportSeen = true;
metaViewportContent = mapAttrs['content'] || '';
}
}
};
parser.addListener('tagstart', onTagStart);
parser.addListener('end', () => {
if (headSeen && headEvent) {
if (!metaViewportSeen) {
reporter.error('<meta name="viewport"> must be present in <head> tag.', headEvent.line, headEvent.col, this, headEvent.raw);
}
else if (metaViewportContent.trim() === '') {
reporter.error('<meta name="viewport"> content attribute must not be empty.', headEvent.line, headEvent.col, this, headEvent.raw);
}
}
});
},
};
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