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import {isExternalLinkContext, isExternalLinkStyle} from '#external-links';
export default {
extraDependencies: ['html', 'language', 'wikiData'],
data: (url) => ({url}),
slots: {
content: {
type: 'html',
mutable: false,
},
style: {
// This awkward syntax is because the slot descriptor validator can't
// differentiate between a function that returns a validator (the usual
// syntax) and a function that is itself a validator.
validate: () => isExternalLinkStyle,
default: 'platform',
},
context: {
validate: () => isExternalLinkContext,
default: 'generic',
},
indicateExternal: {
type: 'boolean',
default: false,
},
tab: {
validate: v => v.is('default', 'separate'),
default: 'default',
},
},
generate(data, slots, {html, language}) {
let urlIsValid;
try {
new URL(data.url);
urlIsValid = true;
} catch (error) {
urlIsValid = false;
}
let formattedLink;
if (urlIsValid) {
formattedLink =
language.formatExternalLink(data.url, {
style: slots.style,
context: slots.context,
});
// Fall back to platform if nothing matched the desired style.
if (html.isBlank(formattedLink) && slots.style !== 'platform') {
formattedLink =
language.formatExternalLink(data.url, {
style: 'platform',
context: slots.context,
});
}
} else {
formattedLink = null;
}
const linkAttributes = html.attributes({
class: 'external-link',
});
let linkContent;
if (urlIsValid) {
linkAttributes.set('href', data.url);
if (html.isBlank(slots.content)) {
linkContent = formattedLink;
} else {
linkContent = slots.content;
}
} else {
if (html.isBlank(slots.content)) {
linkContent =
html.tag('i',
language.$('misc.external.invalidURL.annotation'));
} else {
linkContent =
language.$('misc.external.invalidURL', {
link: slots.content,
annotation:
html.tag('i',
language.$('misc.external.invalidURL.annotation')),
});
}
}
if (urlIsValid && slots.indicateExternal) {
linkAttributes.add('class', 'indicate-external');
let titleText;
if (slots.tab === 'separate') {
if (html.isBlank(slots.content)) {
titleText =
language.$('misc.external.opensInNewTab.annotation');
} else {
titleText =
language.$('misc.external.opensInNewTab', {
link: formattedLink,
annotation:
language.$('misc.external.opensInNewTab.annotation'),
});
}
} else if (!html.isBlank(slots.content)) {
titleText = formattedLink;
}
if (titleText) {
linkAttributes.set('title', titleText.toString());
}
}
if (urlIsValid && slots.tab === 'separate') {
linkAttributes.set('target', '_blank');
}
return html.tag('a', linkAttributes, linkContent);
},
};
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