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click-events-have-key-events.ts
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click-events-have-key-events.ts
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import type { TmplAstElement } from '@angular-eslint/bundled-angular-compiler';
import {
createESLintRule,
getTemplateParserServices,
} from '../utils/create-eslint-rule';
import { getDomElements } from '../utils/get-dom-elements';
import { isHiddenFromScreenReader } from '../utils/is-hidden-from-screen-reader';
import { isInteractiveElement } from '../utils/is-interactive-element';
import { isPresentationRole } from '../utils/is-presentation-role';
type Options = [];
export type MessageIds = 'clickEventsHaveKeyEvents';
export const RULE_NAME = 'click-events-have-key-events';
export default createESLintRule<Options, MessageIds>({
name: RULE_NAME,
meta: {
type: 'suggestion',
docs: {
description:
'Ensures that the click event is accompanied with at least one key event keyup, keydown or keypress.',
recommended: false,
},
schema: [],
messages: {
clickEventsHaveKeyEvents:
'click must be accompanied by either keyup, keydown or keypress event for accessibility.',
},
},
defaultOptions: [],
create(context) {
return {
Element$1(node: TmplAstElement) {
if (!getDomElements().has(node.name)) {
return;
}
if (
isPresentationRole(node) ||
isHiddenFromScreenReader(node) ||
isInteractiveElement(node)
) {
return;
}
let hasClick = false,
hasKeyEvent = false;
for (const output of node.outputs) {
hasClick = hasClick || output.name === 'click';
hasKeyEvent =
hasKeyEvent ||
output.name.startsWith('keyup') ||
output.name.startsWith('keydown') ||
output.name.startsWith('keypress');
}
if (!hasClick || hasKeyEvent) {
return;
}
const parserServices = getTemplateParserServices(context);
const loc = parserServices.convertNodeSourceSpanToLoc(node.sourceSpan);
context.report({
loc,
messageId: 'clickEventsHaveKeyEvents',
});
},
};
},
});