lion/packages/localize/stories/12-features-overview.stories.mdx
2020-01-22 10:17:56 +01:00

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Text

import { Story, Meta, html } from '@open-wc/demoing-storybook';
import { render } from '@lion/core';
import { localize, formatNumber, formatDate } from '../index.js';
<Meta title="Localize/Features Overview" />
<Story name="Translate text"></Story>
## Translate Text
### As a function
<Story id="localize-system-internals--as-function" />
```js
localize.msg('lit-html-example:body'); // for en-GB: I am from England
localize.msg('lit-html-example:body'); // for nl-NL: Ik kom uit Nederland
// ...
```
### Web Component
For use in a web component we have `LocalizeMixin` that lets you define namespaces and awaits loading of those translations.
<Story id="localize-system-internals--web-component" />
```js
class MessageExample extends LocalizeMixin(LitElement) {
render() {
return html`
<div aria-live="polite">
<p>${localize.msg('lit-html-example:body')}</p>
</div>
`;
}
}
```
## Numbers
To format numbers you can use `formatNumber`. For more details see [Numbers](?path=/docs/localize-system-numbers--formatting).
<Story name="Numbers">
{() => {
const wrapper = document.createElement('div');
let value = 1234.56;
function update() {
render(
html`
<input type="text" value=${value} />
<p>${formatNumber(value)}</p>
<sb-locale-switcher></sb-locale-switcher>
`,
wrapper,
);
}
localize.addEventListener('localeChanged', () => {
update();
});
update();
const input = wrapper.querySelector('input');
input.addEventListener('input', ev => {
value = ev.target.value;
update();
});
return wrapper;
}}
</Story>
## Dates
To format dates you can use `formatDate`. For more details see [Dates](?path=/docs/localize-system-dates--formatting).
<Story name="Dates">
{() => {
const wrapper = document.createElement('div');
let value = '1987/05/12';
function update() {
render(
html`
<input type="text" value=${value} />
<p>${formatDate(new Date(value))}</p>
<sb-locale-switcher></sb-locale-switcher>
`,
wrapper,
);
}
localize.addEventListener('localeChanged', () => {
update();
});
update();
const input = wrapper.querySelector('input');
input.addEventListener('input', ev => {
value = ev.target.value;
update();
});
return wrapper;
}}
</Story>