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<script lang="ts">
import { Image } from "@gradio/image/shared";
import { MarkdownCode as Markdown } from "@gradio/markdown-code";
import { File, Music, Video } from "@gradio/icons";
import type { ExampleMessage } from "../types";
import { createEventDispatcher } from "svelte";
import type { SelectData } from "@gradio/utils";
import type { FileData } from "@gradio/client";
export let examples: ExampleMessage[] | null = null;
export let placeholder: string | null = null;
export let latex_delimiters: {
left: string;
right: string;
display: boolean;
}[];
const dispatch = createEventDispatcher<{
example_select: SelectData;
}>();
function handle_example_select(
i: number,
example: ExampleMessage | string
): void {
const example_obj =
typeof example === "string" ? { text: example } : example;
dispatch("example_select", {
index: i,
value: { text: example_obj.text, files: example_obj.files }
});
}
</script>
<div class="placeholder-content" role="complementary">
{#if placeholder !== null}
<div class="placeholder">
<Markdown message={placeholder} {latex_delimiters} />
</div>
{/if}
{#if examples !== null}
<div class="examples" role="list">
{#each examples as example, i}
<button
class="example"
on:click={() =>
handle_example_select(
i,
typeof example === "string" ? { text: example } : example
)}
aria-label={`Select example ${i + 1}: ${example.display_text || example.text}`}
>
<div class="example-content">
{#if example?.icon?.url}
<div class="example-image-container">
<Image
class="example-image"
src={example.icon.url}
alt="Example icon"
/>
</div>
{:else if example?.icon?.mime_type === "text"}
<div class="example-icon" aria-hidden="true">
<span class="text-icon-aa">Aa</span>
</div>
{:else if example.files !== undefined && example.files.length > 0}
{#if example.files.length > 1}
<div
class="example-icons-grid"
role="group"
aria-label="Example attachments"
>
{#each example.files.slice(0, 4) as file, i}
{#if file.mime_type?.includes("image")}
<div class="example-image-container">
<Image
class="example-image"
src={file.url}
alt={file.orig_name || `Example image ${i + 1}`}
/>
{#if i === 3 && example.files.length > 4}
<div
class="image-overlay"
role="status"
aria-label={`${example.files.length - 4} more files`}
>
+{example.files.length - 4}
</div>
{/if}
</div>
{:else if file.mime_type?.includes("video")}
<div class="example-image-container">
<video
class="example-image"
src={file.url}
aria-hidden="true"
/>
{#if i === 3 && example.files.length > 4}
<div
class="image-overlay"
role="status"
aria-label={`${example.files.length - 4} more files`}
>
+{example.files.length - 4}
</div>
{/if}
</div>
{:else}
<div
class="example-icon"
aria-label={`File: ${file.orig_name}`}
>
{#if file.mime_type?.includes("audio")}
<Music />
{:else}
<File />
{/if}
</div>
{/if}
{/each}
{#if example.files.length > 4}
<div class="example-icon">
<div
class="file-overlay"
role="status"
aria-label={`${example.files.length - 4} more files`}
>
+{example.files.length - 4}
</div>
</div>
{/if}
</div>
{:else if example.files[0].mime_type?.includes("image")}
<div class="example-image-container">
<Image
class="example-image"
src={example.files[0].url}
alt={example.files[0].orig_name || "Example image"}
/>
</div>
{:else if example.files[0].mime_type?.includes("video")}
<div class="example-image-container">
<video
class="example-image"
src={example.files[0].url}
aria-hidden="true"
/>
</div>
{:else if example.files[0].mime_type?.includes("audio")}
<div
class="example-icon"
aria-label={`File: ${example.files[0].orig_name}`}
>
<Music />
</div>
{:else}
<div
class="example-icon"
aria-label={`File: ${example.files[0].orig_name}`}
>
<File />
</div>
{/if}
{/if}
<div class="example-text-content">
<span class="example-text"
>{example.display_text || example.text}</span
>
</div>
</div>
</button>
{/each}
</div>
{/if}
</div>
<style>
.placeholder-content {
display: flex;
flex-direction: column;
height: 100%;
}
.placeholder {
align-items: center;
display: flex;
justify-content: center;
height: 100%;
flex-grow: 1;
}
.examples :global(img) {
pointer-events: none;
}
.examples {
margin: auto;
padding: var(--spacing-xxl);
display: grid;
grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
gap: var(--spacing-xl);
max-width: calc(min(4 * 240px + 5 * var(--spacing-xxl), 100%));
}
.example {
display: flex;
flex-direction: column;
align-items: flex-start;
padding: var(--spacing-xxl);
border: none;
border-radius: var(--radius-lg);
background-color: var(--block-background-fill);
cursor: pointer;
transition: all 150ms ease-in-out;
width: 100%;
gap: var(--spacing-sm);
border: var(--block-border-width) solid var(--block-border-color);
transform: translateY(0px);
}
.example:hover {
transform: translateY(-2px);
background-color: var(--color-accent-soft);
}
.example-content {
display: flex;
flex-direction: column;
align-items: flex-start;
width: 100%;
height: 100%;
}
.example-text-content {
margin-top: var(--spacing-sm);
text-align: left;
}
.example-text {
font-size: var(--text-md);
text-align: left;
overflow: hidden;
text-overflow: ellipsis;
}
.example-icons-grid {
display: flex;
gap: var(--spacing-sm);
width: 100%;
}
.example-icon {
flex-shrink: 0;
width: var(--size-8);
height: var(--size-8);
display: flex;
align-items: center;
justify-content: center;
border-radius: var(--radius-lg);
border: var(--block-border-width) solid var(--block-border-color);
background-color: var(--block-background-fill);
position: relative;
}
.example-icon :global(svg) {
width: var(--size-4);
height: var(--size-4);
color: var(--color-text-secondary);
}
.text-icon-aa {
font-size: var(--text-sm);
font-weight: var(--weight-semibold);
color: var(--color-text-secondary);
line-height: 1;
}
.example-image-container {
width: var(--size-8);
height: var(--size-8);
border-radius: var(--radius-lg);
overflow: hidden;
position: relative;
}
.example-image-container :global(img) {
width: 100%;
height: 100%;
object-fit: cover;
}
.image-overlay {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(0, 0, 0, 0.6);
color: white;
display: flex;
align-items: center;
justify-content: center;
font-size: var(--text-lg);
font-weight: var(--weight-semibold);
border-radius: var(--radius-lg);
}
.file-overlay {
position: absolute;
inset: 0;
background: rgba(0, 0, 0, 0.6);
color: white;
display: flex;
align-items: center;
justify-content: center;
font-size: var(--text-sm);
font-weight: var(--weight-semibold);
border-radius: var(--radius-lg);
}
</style>
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