frontend / 6.0.0-dev.5 /dialogue /Dialogue.svelte
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<script lang="ts">
import { onMount, tick } from "svelte";
import { BlockTitle, IconButton, IconButtonWrapper } from "@gradio/atoms";
import { Copy, Check, Send, Plus, Trash } from "@gradio/icons";
import { fade } from "svelte/transition";
import { BaseDropdown, BaseDropdownOptions } from "@gradio/dropdown";
import { Gradio } from "@gradio/utils";
import type { DialogueLine } from "./utils";
import Switch from "./Switch.svelte";
import type { DialogueEvents, DialogueProps } from "./types";
const props = $props();
const gradio: Gradio<DialogueEvents, DialogueProps> = props.gradio;
let checked = $derived(false);
let disabled = $derived(!gradio.shared.interactive);
let dialogue_lines: DialogueLine[] = $state([]);
$effect(() => {
if (
gradio.props.value &&
gradio.props.value.length &&
typeof gradio.props.value !== "string"
) {
dialogue_lines = [...gradio.props.value];
} else if (gradio.props.value && typeof gradio.props.value !== "string") {
dialogue_lines = [
{
speaker: `${gradio.props.speakers.length ? gradio.props.speakers[0] : ""}`,
text: ""
}
];
} else if (typeof gradio.props.value === "string") {
textbox_value = gradio.props.value;
checked = true;
}
});
let buttons = $derived(gradio.props.buttons || ["copy"]);
let old_value = $state(gradio.props.value);
$effect(() => {
if (old_value != gradio.props.value) {
old_value = gradio.props.value;
gradio.dispatch("change");
}
});
let dialogue_container_element: HTMLDivElement;
let showTagMenu = $state(false);
let currentLineIndex = $state(-1);
let selectedOptionIndex = $state(0);
let filtered_tags: string[] = $state([]);
let input_elements: (HTMLInputElement | HTMLTextAreaElement)[] = $state([]);
let textarea_element: HTMLTextAreaElement;
let offset_from_top = $state(0);
let copied = $state(false);
let timer: any;
let textbox_value = $state("");
let hoveredSpeaker: string | null = $state(null);
let is_unformatting = $state(false);
let is_formatting = $state(false);
const defaultColorNames = [
"red",
"green",
"blue",
"yellow",
"purple",
"teal",
"orange",
"cyan",
"lime",
"pink"
];
const colorNameToHex: Record<string, string> = {
red: "rgba(254, 202, 202, 0.7)",
green: "rgba(209, 250, 229, 0.7)",
blue: "rgba(219, 234, 254, 0.7)",
yellow: "rgba(254, 243, 199, 0.7)",
purple: "rgba(233, 213, 255, 0.7)",
teal: "rgba(204, 251, 241, 0.7)",
orange: "rgba(254, 215, 170, 0.7)",
cyan: "rgba(207, 250, 254, 0.7)",
lime: "rgba(217, 249, 157, 0.7)",
pink: "rgba(252, 231, 243, 0.7)"
};
let speakerColors: Record<string, string> = $derived.by(() => {
let _speakerColors: Record<string, string> = {};
if (gradio.props.color_map) {
_speakerColors = { ...gradio.props.color_map };
} else {
_speakerColors = {};
gradio.props.speakers.forEach((speaker, index) => {
const colorName = defaultColorNames[index % defaultColorNames.length];
_speakerColors[speaker] = colorNameToHex[colorName];
});
}
return _speakerColors;
});
function add_line(index: number): void {
const newSpeaker =
gradio.props.speakers.length > 0 ? gradio.props.speakers[0] : "";
dialogue_lines = [
...dialogue_lines.slice(0, index + 1),
{ speaker: newSpeaker, text: "" },
...dialogue_lines.slice(index + 1)
];
tick().then(() => {
if (input_elements[index + 1]) {
input_elements[index + 1].focus();
}
});
gradio.props.value = [...dialogue_lines];
}
function delete_line(index: number): void {
dialogue_lines = [
...dialogue_lines.slice(0, index),
...dialogue_lines.slice(index + 1)
];
gradio.props.value = [...dialogue_lines];
}
function update_line(
index: number,
key: keyof DialogueLine,
value: string
): void {
dialogue_lines[index][key] = value;
dialogue_lines = [...dialogue_lines];
gradio.props.value = [...dialogue_lines];
}
function handle_input(event: Event, index: number): void {
const input = (event.target as HTMLInputElement) || HTMLTextAreaElement;
if (input && !input_elements[index]) {
input_elements[index] = input;
}
const cursor_position = input.selectionStart || 0;
const text = input.value;
let show_menu = false;
let position_reference_index = -1;
if (text[cursor_position - 1] === ":") {
currentLineIndex = index;
position_reference_index = cursor_position;
const search_text = get_tag_search_text(text, cursor_position);
filtered_tags = gradio.props.tags.filter(
(tag) =>
search_text === "" ||
tag.toLowerCase().includes(search_text.toLowerCase())
);
show_menu = filtered_tags.length > 0;
selectedOptionIndex = 0;
} else {
const lastColonIndex = text.lastIndexOf(":", cursor_position - 1);
if (
lastColonIndex >= 0 &&
!text.substring(lastColonIndex + 1, cursor_position).includes(" ")
) {
currentLineIndex = index;
position_reference_index = lastColonIndex + 1; // Position menu relative to the start of the potential tag
const searchText = text.substring(lastColonIndex + 1, cursor_position);
filtered_tags = gradio.props.tags.filter(
(tag) =>
searchText === "" ||
tag.toLowerCase().includes(searchText.toLowerCase())
);
show_menu = filtered_tags.length > 0;
selectedOptionIndex = 0;
}
}
if (show_menu && position_reference_index !== -1) {
showTagMenu = true;
const input_rect = input.getBoundingClientRect();
// Position menu below the current input by calculating the distance from the top of the container
// and use 1.5 times the input height.
if (dialogue_container_element) {
const container_rect =
dialogue_container_element.getBoundingClientRect();
offset_from_top =
container_rect.top + input_rect.height * (index + 1.5);
}
} else {
showTagMenu = false;
}
gradio.dispatch("input");
}
function get_tag_search_text(text: string, cursorPosition: number): string {
const lastColonIndex = text.lastIndexOf(":", cursorPosition - 1);
if (lastColonIndex >= 0) {
return text.substring(lastColonIndex + 1, cursorPosition);
}
return "";
}
async function insert_selected_tag(): Promise<void> {
const tag = filtered_tags[selectedOptionIndex];
if (tag) {
let text;
let currentInput;
if (checked) {
currentInput = textarea_element;
text = textbox_value;
} else {
currentInput = input_elements[currentLineIndex];
text = dialogue_lines[currentLineIndex].text;
}
const cursorPosition = currentInput?.selectionStart || 0;
const lastColonIndex = text.lastIndexOf(":", cursorPosition - 1);
if (lastColonIndex >= 0) {
const beforeColon = text.substring(0, lastColonIndex);
const afterCursor = text.substring(cursorPosition);
if (checked) {
// plain text mode: don't filter speaker tags
const newText = `${beforeColon}${tag} ${afterCursor}`;
textbox_value = newText;
if (gradio.props.speakers.length === 0) {
gradio.props.value = newText;
} else {
gradio.props.value = await gradio.shared.server.unformat({
text: newText
});
}
tick().then(() => {
if (textarea_element) {
const newCursorPosition = beforeColon.length + tag.length + 1;
textarea_element.setSelectionRange(
newCursorPosition,
newCursorPosition
);
textarea_element.focus();
}
});
} else {
// dialogue line mode
const filteredBeforeColon = beforeColon
.replace(/\[S\d+\]/g, "")
.trim();
const newText = `${filteredBeforeColon}${tag} ${afterCursor}`;
update_line(currentLineIndex, "text", newText);
tick().then(() => {
const updatedInput = input_elements[currentLineIndex];
if (updatedInput) {
const newCursorPosition =
filteredBeforeColon.length + tag.length + 1;
updatedInput.setSelectionRange(
newCursorPosition,
newCursorPosition
);
updatedInput.focus();
}
});
}
}
showTagMenu = false;
selectedOptionIndex = 0;
}
}
async function insert_tag(e: CustomEvent): Promise<void> {
const tag = gradio.props.tags[e.detail.target.dataset.index];
if (tag) {
let text;
let currentInput;
if (checked) {
currentInput = textarea_element;
text = textbox_value;
} else {
currentInput = input_elements[currentLineIndex];
text = dialogue_lines[currentLineIndex].text;
}
const cursorPosition = currentInput?.selectionStart || 0;
const lastColonIndex = text.lastIndexOf(":", cursorPosition - 1);
if (lastColonIndex >= 0) {
const beforeColon = text.substring(0, lastColonIndex);
const afterCursor = text.substring(cursorPosition);
if (checked) {
// plain text mode: don't filter speaker tags
const newText = `${beforeColon}${tag} ${afterCursor}`;
textbox_value = newText;
if (gradio.props.speakers.length === 0) {
gradio.props.value = newText;
} else {
gradio.props.value = await gradio.shared.server.unformat({
text: newText
});
}
tick().then(() => {
if (textarea_element) {
const newCursorPosition = beforeColon.length + tag.length + 1;
textarea_element.setSelectionRange(
newCursorPosition,
newCursorPosition
);
textarea_element.focus();
}
});
} else {
// dialogue line mode
const filteredBeforeColon = beforeColon
.replace(/\[S\d+\]/g, "")
.trim();
const newText = `${filteredBeforeColon}${tag} ${afterCursor}`;
update_line(currentLineIndex, "text", newText);
tick().then(() => {
const updatedInput = input_elements[currentLineIndex];
if (updatedInput) {
const newCursorPosition =
filteredBeforeColon.length + tag.length + 1;
updatedInput.setSelectionRange(
newCursorPosition,
newCursorPosition
);
updatedInput.focus();
}
});
}
}
showTagMenu = false;
selectedOptionIndex = 0;
}
}
function handle_click_outside(event: MouseEvent): void {
if (showTagMenu) {
const target = event.target as Node;
const tagMenu = document.getElementById("tag-menu");
if (tagMenu && !tagMenu.contains(target)) {
showTagMenu = false;
}
}
}
async function value_to_string(
value: DialogueLine[] | string
): Promise<string> {
if (typeof value === "string") {
return value;
}
return await gradio.shared.server.format(value);
}
async function handle_copy(): Promise<void> {
if ("clipboard" in navigator) {
const text = await value_to_string(gradio.props.value);
await navigator.clipboard.writeText(text);
copy_feedback();
}
}
function copy_feedback(): void {
copied = true;
if (timer) clearTimeout(timer);
timer = setTimeout(() => {
copied = false;
}, 1000);
}
async function handle_submit(): Promise<void> {
if (checked) {
gradio.props.value = await gradio.shared.server.unformat({
text: textbox_value
});
}
gradio.dispatch("submit");
}
onMount(async () => {
if (typeof gradio.props.value === "string") {
textbox_value = gradio.props.value;
} else if (gradio.props.value && gradio.props.value.length > 0) {
const formatted = await value_to_string(gradio.props.value);
textbox_value = formatted;
} else {
textbox_value = "";
}
});
</script>
<svelte:window on:click={handle_click_outside} />
<label class:container={gradio.shared.container}>
{#if gradio.shared.show_label && buttons.includes("copy")}
<IconButtonWrapper>
<IconButton
Icon={copied ? Check : Copy}
on:click={handle_copy}
label={copied ? "Copied" : "Copy"}
/>
</IconButtonWrapper>
{/if}
<BlockTitle show_label={gradio.shared.show_label} info={gradio.props.info}
>{gradio.shared.label || "Dialogue"}</BlockTitle
>
{#if gradio.props.ui_mode === "both"}
<div
class="switch-container top-switch"
class:switch-disabled={is_formatting || is_unformatting}
>
<Switch
label="Plain Text"
bind:checked
disabled={is_formatting || is_unformatting}
on:click={async (e) => {
if (!e.detail.checked) {
is_unformatting = true;
try {
gradio.props.value = await gradio.shared.server.unformat({
text: textbox_value
});
dialogue_lines = [...(gradio.props.value as DialogueLine[])];
} finally {
is_unformatting = false;
}
} else {
is_formatting = true;
try {
textbox_value = await value_to_string(dialogue_lines);
} finally {
is_formatting = false;
}
}
}}
/>
</div>
{/if}
{#if !checked && gradio.props.ui_mode !== "text"}
<div
class="dialogue-container"
bind:this={dialogue_container_element}
class:loading={is_unformatting}
>
{#if is_unformatting}
<div class="loading-overlay" transition:fade={{ duration: 200 }}>
<div class="loading-spinner"></div>
<div class="loading-text">Converting to dialogue format...</div>
</div>
{/if}
{#each dialogue_lines as line, i}
<div
class="dialogue-line"
style="--speaker-bg-color: {disabled &&
(hoveredSpeaker === null || hoveredSpeaker === line.speaker)
? speakerColors[line.speaker] || 'transparent'
: 'transparent'}"
>
<div
class="speaker-column"
role="button"
tabindex="0"
on:mouseenter={() => disabled && (hoveredSpeaker = line.speaker)}
on:mouseleave={() => disabled && (hoveredSpeaker = null)}
>
{#if disabled}
<textarea
bind:value={line.speaker}
{disabled}
rows="1"
readonly
/>
{:else}
{@const dd_props = new Gradio({
shared_props: {
container: true,
show_label: false,
interactive: true,
label: ""
},
props: {
value: line.speaker,
choices: gradio.props.speakers.map((s) => [s, s])
}
})}
<BaseDropdown
on_change={() =>
update_line(i, "speaker", dd_props.props.value as string)}
gradio={dd_props}
/>
{/if}
</div>
<div class="text-column">
<div class="input-container">
<textarea
bind:value={line.text}
placeholder={gradio.props.placeholder}
{disabled}
on:input={(event) => handle_input(event, i)}
on:focus={(event) => handle_input(event, i)}
on:keydown={(event) => {
if (event.key === "Escape" && showTagMenu) {
showTagMenu = false;
selectedOptionIndex = 0;
event.preventDefault();
} else if (showTagMenu && currentLineIndex === i) {
if (event.key === "ArrowDown") {
selectedOptionIndex = Math.min(
selectedOptionIndex + 1,
filtered_tags.length - 1
);
event.preventDefault();
} else if (event.key === "ArrowUp") {
selectedOptionIndex = Math.max(
selectedOptionIndex - 1,
0
);
event.preventDefault();
} else if (event.key === "Enter") {
if (filtered_tags[selectedOptionIndex]) {
insert_selected_tag();
}
event.preventDefault();
}
}
}}
bind:this={input_elements[i]}
rows="1"
></textarea>
{#if showTagMenu && currentLineIndex === i}
<div
id="tag-menu"
class="tag-menu"
transition:fade={{ duration: 100 }}
>
<BaseDropdownOptions
choices={gradio.props.tags.map((s, i) => [s, i])}
filtered_indices={filtered_tags.map((s) =>
gradio.props.tags.indexOf(s)
)}
active_index={filtered_tags.map((s) =>
gradio.props.tags.indexOf(s)
)[selectedOptionIndex]}
show_options={true}
on:change={(e) => insert_tag(e)}
{offset_from_top}
from_top={true}
/>
</div>
{/if}
</div>
</div>
{#if gradio.props.max_lines == undefined || (gradio.props.max_lines && i < gradio.props.max_lines - 1)}
<div class:action-column={i == 0} class:hidden={disabled}>
<button
class="add-button"
on:click={() => add_line(i)}
aria-label="Add new line"
{disabled}
>
<Plus />
</button>
</div>
{/if}
<div class="action-column" class:hidden={disabled || i == 0}>
<button
class="delete-button"
on:click={() => delete_line(i)}
aria-label="Remove current line"
{disabled}
>
<Trash />
</button>
</div>
</div>
{/each}
</div>
{:else if checked || gradio.props.ui_mode !== "dialogue"}
<div class="textarea-container" class:loading={is_formatting}>
{#if is_formatting}
<div class="loading-overlay" transition:fade={{ duration: 200 }}>
<div class="loading-spinner"></div>
<div class="loading-text">Converting to plain text...</div>
</div>
{/if}
<textarea
data-testid="textbox"
bind:value={textbox_value}
placeholder={gradio.props.placeholder}
rows={5}
{disabled}
on:input={(event) => {
handle_input(event, 0);
gradio.props.value = textbox_value;
}}
on:focus={(event) => handle_input(event, 0)}
on:keydown={(event) => {
if (event.key === "Escape" && showTagMenu) {
showTagMenu = false;
selectedOptionIndex = 0;
event.preventDefault();
} else if (showTagMenu) {
if (event.key === "ArrowDown") {
selectedOptionIndex = Math.min(
selectedOptionIndex + 1,
filtered_tags.length - 1
);
event.preventDefault();
} else if (event.key === "ArrowUp") {
selectedOptionIndex = Math.max(selectedOptionIndex - 1, 0);
event.preventDefault();
} else if (event.key === "Enter") {
if (filtered_tags[selectedOptionIndex]) {
insert_selected_tag();
}
event.preventDefault();
}
}
}}
bind:this={textarea_element}
/>
{#if showTagMenu}
<div
id="tag-menu"
class="tag-menu-plain-text"
transition:fade={{ duration: 100 }}
>
<BaseDropdownOptions
choices={gradio.props.tags.map((s, i) => [s, i])}
filtered_indices={filtered_tags.map((s) =>
gradio.props.tags.indexOf(s)
)}
active_index={filtered_tags.map((s) =>
gradio.props.tags.indexOf(s)
)[selectedOptionIndex]}
show_options={true}
on:change={(e) => insert_tag(e)}
/>
</div>
{/if}
</div>
{/if}
{#if gradio.props.submit_btn && !disabled}
<div class="submit-container">
<button class="submit-button" on:click={handle_submit} {disabled}>
{#if typeof gradio.props.submit_btn === "string"}
{gradio.props.submit_btn}
{:else}
<Send />
{/if}
</button>
</div>
{/if}
</label>
<style>
label {
display: block;
width: 100%;
}
.input-container {
display: flex;
position: relative;
align-items: flex-end;
}
.dialogue-container {
border: none;
border-radius: var(--input-radius);
background: var(--input-background-fill);
padding: var(--spacing-md);
margin-bottom: var(--spacing-sm);
position: relative;
}
.dialogue-line {
display: flex;
align-items: center;
margin-bottom: var(--spacing-sm);
}
.dialogue-line:has(.action-column.hidden) .text-column {
margin-right: 0;
}
.speaker-column {
flex: 0 0 150px;
margin-right: var(--spacing-sm);
display: flex;
align-items: center;
}
.speaker-column textarea {
background: var(--speaker-bg-color);
transition: background-color 0.2s ease;
border: 1px solid var(--border-color-primary);
border-radius: var(--radius-sm);
padding: var(--input-padding);
color: var(--body-text-color);
font-weight: var(--input-text-weight);
font-size: var(--input-text-size);
line-height: var(--line-sm);
resize: none;
width: 100%;
box-sizing: border-box;
height: auto;
min-height: 30px;
max-height: none;
margin-top: 0px;
margin-bottom: 0px;
z-index: 1;
display: block;
position: relative;
white-space: pre-wrap;
word-wrap: break-word;
overflow-wrap: break-word;
overflow: hidden;
}
.text-column {
flex: 1;
margin-right: var(--spacing-sm);
}
.text-column textarea {
width: 100%;
padding: var(--spacing-sm);
border: 1px solid var(--border-color-primary);
border-radius: var(--radius-sm);
color: var(--body-text-color);
background: var(--speaker-bg-color);
transition: background-color 0.2s ease;
height: auto;
min-height: 30px;
max-height: none;
flex-grow: 1;
margin-top: 0px;
margin-bottom: 0px;
resize: none;
z-index: 1;
display: block;
position: relative;
padding: var(--input-padding);
width: 100%;
color: var(--body-text-color);
font-weight: var(--input-text-weight);
font-size: var(--input-text-size);
line-height: var(--line-sm);
white-space: pre-wrap;
word-wrap: break-word;
overflow-wrap: break-word;
overflow: hidden;
box-sizing: border-box;
}
.text-column textarea {
color: var(--body-text-color);
}
.dialogue-line[style*="--speaker-bg-color: rgba"] .text-column textarea,
.dialogue-line[style*="--speaker-bg-color: rgba"] .speaker-column textarea {
color: black;
}
textarea {
flex-grow: 1;
outline: none !important;
margin-top: 0px;
margin-bottom: 0px;
resize: none;
z-index: 1;
display: block;
position: relative;
outline: none !important;
background: var(--input-background-fill);
padding: var(--input-padding);
width: 100%;
color: var(--body-text-color);
font-weight: var(--input-text-weight);
font-size: var(--input-text-size);
line-height: var(--line-sm);
box-shadow: var(--input-shadow);
border: var(--input-border-width) solid var(--input-border-color);
border-radius: var(--input-radius);
}
textarea:disabled {
-webkit-opacity: 1;
opacity: 1;
}
textarea:focus {
box-shadow: var(--input-shadow-focus);
border-color: var(--input-border-color-focus);
background: var(--input-background-fill-focus);
}
textarea::placeholder {
color: var(--input-placeholder-color);
}
.action-column {
display: flex;
justify-content: center;
}
.add-button {
display: flex;
justify-content: center;
align-items: center;
width: 25px;
height: 25px;
border: none;
background: transparent;
cursor: pointer;
}
.delete-button {
display: flex;
justify-content: center;
align-items: center;
width: 15px;
height: 15px;
}
.add-button:hover {
color: var(--color-accent);
}
.switch-container {
display: flex;
justify-content: flex-start;
transition: opacity 0.2s ease-in-out;
}
.switch-container.switch-disabled {
opacity: 0.6;
pointer-events: none;
}
.switch-container.top-switch {
margin-bottom: var(--spacing-sm);
justify-content: flex-end;
}
.submit-container {
display: flex;
justify-content: flex-end;
margin-top: var(--spacing-sm);
}
.submit-container button[disabled] {
cursor: not-allowed;
}
.submit-button {
border: none;
text-align: center;
text-decoration: none;
font-size: 14px;
cursor: pointer;
border-radius: 15px;
min-width: 30px;
height: 30px;
flex-shrink: 0;
display: flex;
justify-content: center;
align-items: center;
background: var(--button-secondary-background-fill);
color: var(--button-secondary-text-color);
}
.submit-button:hover {
background: var(--button-secondary-background-fill-hover);
}
.submit-button:active {
box-shadow: var(--button-shadow-active);
}
.submit-button :global(svg) {
height: 22px;
width: 22px;
}
.tag-menu {
position: absolute;
width: 100%;
top: 100%;
left: 0;
}
.tag-menu-plain-text {
position: relative;
width: 100%;
}
.tag-menu-plain-text :global(.options) {
position: static !important;
width: 100% !important;
max-height: none !important;
top: auto !important;
bottom: auto !important;
}
.hidden {
display: none;
}
.loading-overlay {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: var(--input-background-fill);
opacity: 0.95;
backdrop-filter: blur(2px);
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
z-index: 10;
border-radius: var(--input-radius);
}
.loading-spinner {
width: 24px;
height: 24px;
border: 2px solid var(--border-color-primary);
border-top: 2px solid var(--color-accent);
border-radius: 50%;
animation: spin 1s linear infinite;
margin-bottom: var(--spacing-sm);
}
@keyframes spin {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
.loading-text {
color: var(--body-text-color);
font-size: var(--text-sm);
font-weight: 500;
opacity: 0.8;
}
.dialogue-container.loading,
.textarea-container.loading {
position: relative;
opacity: 0.7;
transition: opacity 0.3s ease-in-out;
}
.dialogue-container,
.textarea-container {
transition: opacity 0.3s ease-in-out;
}
</style>