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File size: 1,631 Bytes
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<script lang="ts">
import { onMount, tick } from 'svelte';
export let value = '';
export let placeholder = '';
export let className =
'w-full rounded-lg px-3 py-2 text-sm bg-gray-50 dark:text-gray-300 dark:bg-gray-850 outline-none resize-none h-full';
let textareaElement;
$: if (textareaElement) {
if (textareaElement.innerText !== value && value !== '') {
textareaElement.innerText = value ?? '';
}
}
// Adjust height on mount and after setting the element.
onMount(async () => {
await tick();
});
// Handle paste event to ensure only plaintext is pasted
function handlePaste(event: ClipboardEvent) {
event.preventDefault(); // Prevent the default paste action
const clipboardData = event.clipboardData?.getData('text/plain'); // Get plaintext from clipboard
// Insert plaintext into the textarea
document.execCommand('insertText', false, clipboardData);
}
</script>
<div
contenteditable="true"
bind:this={textareaElement}
class="{className} whitespace-pre-wrap relative {value
? !value.trim()
? 'placeholder'
: ''
: 'placeholder'}"
style="field-sizing: content; -moz-user-select: text !important;"
on:input={() => {
const text = textareaElement.innerText;
if (text === '\n') {
value = '';
return;
}
value = text;
}}
on:paste={handlePaste}
data-placeholder={placeholder}
/>
<style>
.placeholder::before {
/* abolute */
position: absolute;
content: attr(data-placeholder);
color: #adb5bd;
overflow: hidden;
display: -webkit-box;
-webkit-box-orient: vertical;
-webkit-line-clamp: 1;
pointer-events: none;
touch-action: none;
}
</style>
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