Weblah/src/lib/components/RichTextInput/ClientInput.svelte
2024-09-03 03:45:25 +08:00

48 lines
1.7 KiB
Svelte

<script lang="ts">
import { Delta, Editor, asRoot, h } from 'typewriter-editor';
export let delta: Delta = new Delta();
export let plainText: string | undefined = undefined;
export let placeholder: string = '';
const editor = new Editor();
editor.typeset.formats.add({
name: 'underline',
selector: 'span[data-weblah-brt=underline]',
styleSelector: '[style*="text-decoration:underline"], [style*="text-decoration: underline"]',
commands: (editor) => () => editor.toggleTextFormat({ underline: true }),
shortcuts: 'Mod+U',
render: (attributes, children) => h('span', { 'data-weblah-brt': 'underline' }, children)
});
editor.typeset.formats.add({
name: 'strikethrough',
selector: 's',
styleSelector:
'[style*="text-decoration:line-through"], [style*="text-decoration: line-through"]',
commands: (editor) => () => editor.toggleTextFormat({ strikethrough: true }),
shortcuts: 'Mod+Shift+X',
render: (attributes, children) => h('s', null, children)
});
editor.on('change', () => {
delta = editor.getDelta();
if (typeof plainText === 'string') plainText = editor.getText();
});
$: editor.setDelta(delta ?? new Delta());
$: if (typeof plainText === 'string' && plainText !== editor.getText()) editor.setText(plainText);
</script>
<div
class="rich-text relative w-full outline-none before:absolute before:hidden before:leading-tight before:opacity-50 before:content-[attr(data-weblah-placeholder)] data-[weblah-is-empty]:before:block"
use:asRoot={editor}
data-weblah-is-empty={!delta || (delta.ops.length === 1 && delta.ops[0].insert === '\n')
? 'true'
: undefined}
data-weblah-placeholder={placeholder}
on:keydown
role="textbox"
tabindex="0"
>
<slot />
</div>