webui: Add setting to have full height Code Blocks in Chat Messages (#19829)

tools/server/webui/src/lib/components/app/chat/ChatSettings/ChatSettings.svelte

@@ -114,6 +114,11 @@
 					label: 'Render user content as Markdown',
 					type: SettingsFieldType.CHECKBOX
 				},
+				{
+					key: SETTINGS_KEYS.FULL_HEIGHT_CODE_BLOCKS,
+					label: 'Use full height code blocks',
+					type: SettingsFieldType.CHECKBOX
+				},
 				{
 					key: SETTINGS_KEYS.DISABLE_AUTO_SCROLL,
 					label: 'Disable automatic scroll',

tools/server/webui/src/lib/components/app/content/MarkdownContent.svelte

@@ -38,6 +38,8 @@
 	import { ActionIconsCodeBlock, DialogCodePreview } from '$lib/components/app';
 	import { createAutoScrollController } from '$lib/hooks/use-auto-scroll.svelte';
 	import type { DatabaseMessageExtra } from '$lib/types/database';
+	import { config } from '$lib/stores/settings.svelte';
+	import { SETTINGS_KEYS } from '$lib/constants/settings-keys';
 
 	interface Props {
 		attachments?: DatabaseMessageExtra[];
@@ -593,7 +595,12 @@
 	});
 </script>
 
-<div bind:this={containerRef} class={className}>
+<div
+	bind:this={containerRef}
+	class="{className}{config()[SETTINGS_KEYS.FULL_HEIGHT_CODE_BLOCKS]
+		? ' full-height-code-blocks'
+		: ''}"
+>
 	{#each renderedBlocks as block (block.id)}
 		<div class="markdown-block" data-block-id={block.id}>
 			<!-- eslint-disable-next-line no-at-html-tags -->
@@ -914,6 +921,16 @@
 		line-height: 1.3;
 	}
 
+	.full-height-code-blocks :global(.code-block-wrapper) {
+		max-height: none;
+	}
+
+	.full-height-code-blocks :global(.code-block-scroll-container),
+	.full-height-code-blocks .streaming-code-scroll-container {
+		max-height: none;
+		overflow-y: visible;
+	}
+
 	div :global(.code-block-header) {
 		display: flex;
 		justify-content: space-between;

tools/server/webui/src/lib/constants/settings-config.ts

@@ -22,6 +22,7 @@ export const SETTING_CONFIG_DEFAULT: Record<string, string | number | boolean> =
 	alwaysShowSidebarOnDesktop: false,
 	autoShowSidebarOnNewChat: true,
 	autoMicOnEmpty: false,
+	fullHeightCodeBlocks: false,
 	// make sure these default values are in sync with `common.h`
 	samplers: 'top_k;typ_p;top_p;min_p;temperature',
 	backend_sampling: false,
@@ -113,6 +114,8 @@ export const SETTING_CONFIG_INFO: Record<string, string> = {
 		'Automatically show sidebar when starting a new chat. Disable to keep the sidebar hidden until you click on it.',
 	autoMicOnEmpty:
 		'Automatically show microphone button instead of send button when textarea is empty for models with audio modality support.',
+	fullHeightCodeBlocks:
+		'Always display code blocks at their full natural height, overriding any height limits.',
 	pyInterpreterEnabled:
 		'Enable Python interpreter using Pyodide. Allows running Python code in markdown code blocks.',
 	enableContinueGeneration:

tools/server/webui/src/lib/constants/settings-keys.ts

@@ -23,6 +23,7 @@ export const SETTINGS_KEYS = {
 	DISABLE_AUTO_SCROLL: 'disableAutoScroll',
 	ALWAYS_SHOW_SIDEBAR_ON_DESKTOP: 'alwaysShowSidebarOnDesktop',
 	AUTO_SHOW_SIDEBAR_ON_NEW_CHAT: 'autoShowSidebarOnNewChat',
+	FULL_HEIGHT_CODE_BLOCKS: 'fullHeightCodeBlocks',
 	// Sampling
 	TEMPERATURE: 'temperature',
 	DYNATEMP_RANGE: 'dynatemp_range',