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<svelte:options accessors={true} />
<script context="module" lang="ts">
export { default as BaseTextbox } from "./shared/Textbox.svelte";
export { default as BaseExample } from "./Example.svelte";
</script>
<script lang="ts">
import { onMount } from "svelte";
import type { Gradio } from "@gradio/utils";
import TextBox from "./shared/Textbox.svelte";
import { Block } from "@gradio/atoms";
import type { LoadingStatus } from "@gradio/statustracker";
import { AutoTokenizer, env } from "@xenova/transformers";
env.allowLocalModels = false;
export let gradio: Gradio<{ change: never; /* ... */ }>;
export let value: { text: string; tokens: string[]; token_ids: number[]; } = { text: "", tokens: [], token_ids: [] };
export let label: string = "Textbox";
export let info: string | undefined = undefined;
export let elem_id: string = "";
export let elem_classes: string[] = [];
export let visible: boolean = true;
export let lines: number;
export let placeholder: string = "";
export let show_label: boolean;
export let max_lines: number | undefined = undefined;
export let type: "text" | "password" | "email" = "text";
export let container: boolean = true;
export let scale: number | null = null;
export let min_width: number | undefined = undefined;
export let submit_btn: string | boolean | null = null;
export let stop_btn: string | boolean | null = null;
export let show_copy_button: boolean = false;
export const loading_status: LoadingStatus | undefined = undefined;
export let rtl: boolean = false;
export let text_align: "left" | "right" | undefined = undefined;
export let autofocus: boolean = false;
export let autoscroll: boolean = true;
export let interactive: boolean;
export let max_length: number | undefined = undefined;
export let model: string = "Xenova/gpt-2";
export let display_mode: 'text' | 'token_ids' | 'hidden' = 'text';
let tokenizer: any = null;
let status: string = "Initializing...";
let currentModel: string = "";
let showVisualization = true;
const colors = ["#d8b4fe", "#bbf7d0", "#fde047", "#fca5a5", "#93c5fd"];
let debounceTimer: ReturnType<typeof setTimeout>;
let lastProcessedText: string | undefined = undefined;
async function tokenizeAndUpdate() {
if (!tokenizer || value.text === lastProcessedText) {
return; // Exit if the text is the same, breaking the loop.
}
// If the text is new, update our tracker immediately.
lastProcessedText = value.text;
try {
const ids = tokenizer.encode(value.text);
const tokens = ids.map((id: number) => tokenizer.decode([id]));
value.tokens = tokens;
value.token_ids = ids;
gradio.dispatch("change");
} catch (e: any) {
status = `Tokenization error: ${e.message}`;
value = value; // Force Svelte to re-render the status message
}
}
async function loadTokenizer(model_name: string) {
if (currentModel === model_name && tokenizer) return;
status = `Loading tokenizer: ${model_name}...`;
currentModel = model_name;
tokenizer = null;
try {
tokenizer = await AutoTokenizer.from_pretrained(model_name);
status = `Tokenizer "${model_name}" loaded.`;
// After loading, reset the tracker and tokenize the current text.
lastProcessedText = undefined;
await tokenizeAndUpdate();
} catch (e: any) {
status = `Error loading model: ${e.message}`;
}
}
onMount(() => {
loadTokenizer(model);
});
$: if (value && value.text !== undefined) {
clearTimeout(debounceTimer);
debounceTimer = setTimeout(tokenizeAndUpdate, 300);
}
$: if (model && model !== currentModel) {
loadTokenizer(model);
}
</script>
<Block {visible} {elem_id} {elem_classes} {scale} {min_width} allow_overflow={false} padding={container}>
<!-- ... (Header with counters and toggle) ... -->
<div class="component-header">
{#if display_mode !== 'hidden'}
<div class="visualization-toggle">
<input type="checkbox" id="show-viz-{elem_id}" bind:checked={showVisualization}>
<label for="show-viz-{elem_id}">Show visualization</label>
</div>
<div class="counters">
<span>Tokens: {value?.tokens?.length || 0}</span>
<span>Characters: {value?.text?.length || 0}</span>
</div>
{/if}
</div>
<!-- ... (Textbox) ... -->
<TextBox
bind:value={value.text}
{label} {info} {show_label} {lines} {type} {rtl} {text_align} {max_lines} {placeholder}
{submit_btn} {stop_btn} {show_copy_button} {autofocus} {container} {autoscroll} {max_length}
disabled={!interactive}
/>
<!-- ... (Visualization Panel) ... -->
{#if showVisualization && display_mode !== 'hidden'}
<div class="token-visualization-container">
{#if display_mode === 'text'}
<div class="token-display">
{#if value?.tokens?.length > 0}
{#each value.tokens as token, i}
<span class="token" style="background-color: {colors[i % colors.length]};">
{token.replace(/ /g, '\u00A0')}
</span>
{/each}
{:else}
<span class="status">{status}</span>
{/if}
</div>
{:else if display_mode === 'token_ids'}
<div class="token-display token-ids">
{#if value?.token_ids?.length > 0}
[{value.token_ids.join(", ")}]
{:else}
<span class="status">{status}</span>
{/if}
</div>
{/if}
</div>
{/if}
</Block>
<style>
.component-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 4px;
min-height: 20px;
}
.visualization-toggle {
display: flex;
align-items: center;
gap: 6px;
font-size: 14px;
color: #4B5563;
}
.visualization-toggle input, .visualization-toggle label {
cursor: pointer;
user-select: none;
}
.counters {
display: flex;
gap: 16px;
font-size: 14px;
color: #6B7280;
font-family: sans-serif;
}
.token-visualization-container {
margin-top: 12px;
}
.token-display {
color: #212529 !important;
padding: 10px;
border: 1px solid #e5e7eb;
background-color: #f9fafb;
border-radius: 8px;
min-height: 70px;
line-height: 1.8;
white-space: pre-wrap;
overflow-y: auto;
font-family: monospace;
font-size: 1rem; }
.token {
display: inline-block;
padding: 2px 6px;
border-radius: 4px;
margin: 2px;
}
.token-ids {
word-break: break-all;
}
</style> |