60 lines
1.3 KiB
Markdown
60 lines
1.3 KiB
Markdown
---
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title: 'Input Email: Use Cases'
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parts:
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- Input Email
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- Use Cases
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eleventyNavigation:
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key: 'Input Email: Use Cases'
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order: 20
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parent: Input Email
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title: Use Cases
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---
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# Input Email: Use Cases
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```js script
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import { html } from '@mdjs/mdjs-preview';
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import { Validator } from '@lion/ui/form-core.js';
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import '@lion/ui/define/lion-input-email.js';
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```
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## Faulty Prefilled
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When prefilling with a faulty input, an error feedback message will show.
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Use `loadDefaultFeedbackMessages` to get our default feedback messages displayed on it.
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```js preview-story
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export const faultyPrefilled = () => html`
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<lion-input-email .modelValue="${'foo'}" label="Email"></lion-input-email>
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`;
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```
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## Custom Validator
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```js preview-story
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export const customValidator = () => {
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class GmailOnly extends Validator {
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static get validatorName() {
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return 'GmailOnly';
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}
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execute(value) {
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let hasError = false;
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if (!(value.indexOf('gmail.com') !== -1)) {
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hasError = true;
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}
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return hasError;
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}
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static async getMessage() {
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return 'You can only use gmail.com email addresses.';
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}
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}
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return html`
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<lion-input-email
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.modelValue="${'foo@bar.com'}"
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.validators="${[new GmailOnly()]}"
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label="Email"
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></lion-input-email>
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`;
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};
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```
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