webui: add "Send message on Enter" setting (#21577)

* webui: make Enter to send chat a setting

* Shorten description

* Use isMobile hook from $lib/hooks

* Rebuild static output

tools/server/public/index.html

@@ -18,7 +18,7 @@
 		<div style="display: contents">
 			<script>
 				{
-					__sveltekit_6n4hpv = {
+					__sveltekit_1ao0o9h = {
 						base: new URL('.', location).pathname.slice(0, -1)
 					};
 

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

@@ -294,11 +294,16 @@
 		}
 
 		if (event.key === KeyboardKey.ENTER && !event.shiftKey && !isIMEComposing(event)) {
-			event.preventDefault();
+			const isModifier = event.ctrlKey || event.metaKey;
+			const sendOnEnter = currentConfig.sendOnEnter !== false;
 
-			if (!canSubmit || disabled || isLoading || hasLoadingAttachments) return;
+			if (sendOnEnter || isModifier) {
+				event.preventDefault();
 
-			onSubmit?.();
+				if (!canSubmit || disabled || isLoading || hasLoadingAttachments) return;
+
+				onSubmit?.();
+			}
 		}
 	}
 

tools/server/webui/src/lib/components/app/chat/ChatForm/ChatFormHelperText.svelte

@@ -1,17 +1,30 @@
 <script lang="ts">
+	import { browser } from '$app/environment';
+	import { config } from '$lib/stores/settings.svelte';
+
 	interface Props {
 		class?: string;
 		show?: boolean;
 	}
 
 	let { class: className = '', show = true }: Props = $props();
+
+	let sendOnEnter = $derived(config().sendOnEnter !== false);
+	let modKey = browser && /Mac|iPhone|iPad|iPod/.test(navigator.platform) ? 'Cmd' : 'Ctrl';
 </script>
 
 {#if show}
 	<div class="mt-6 items-center justify-center {className} hidden md:flex">
-		<p class="text-xs text-muted-foreground">
-			Press <kbd class="rounded bg-muted px-1 py-0.5 font-mono text-xs">Enter</kbd> to send,
-			<kbd class="rounded bg-muted px-1 py-0.5 font-mono text-xs">Shift + Enter</kbd> for new line
-		</p>
+		{#if sendOnEnter}
+			<p class="text-xs text-muted-foreground">
+				Press <kbd class="rounded bg-muted px-1 py-0.5 font-mono text-xs">Enter</kbd> to send,
+				<kbd class="rounded bg-muted px-1 py-0.5 font-mono text-xs">Shift + Enter</kbd> for new line
+			</p>
+		{:else}
+			<p class="text-xs text-muted-foreground">
+				Press <kbd class="rounded bg-muted px-1 py-0.5 font-mono text-xs">{modKey} + Enter</kbd> to send,
+				<kbd class="rounded bg-muted px-1 py-0.5 font-mono text-xs">Enter</kbd> for new line
+			</p>
+		{/if}
 	</div>
 {/if}

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

@@ -64,6 +64,11 @@
 					label: 'Paste long text to file length',
 					type: SettingsFieldType.INPUT
 				},
+				{
+					key: SETTINGS_KEYS.SEND_ON_ENTER,
+					label: 'Send message on Enter',
+					type: SettingsFieldType.CHECKBOX
+				},
 				{
 					key: SETTINGS_KEYS.COPY_TEXT_ATTACHMENTS_AS_PLAIN_TEXT,
 					label: 'Copy text attachments as plain text',

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

@@ -22,6 +22,7 @@ export const SETTING_CONFIG_DEFAULT: Record<string, string | number | boolean |
 	renderUserContentAsMarkdown: false,
 	alwaysShowSidebarOnDesktop: false,
 	autoShowSidebarOnNewChat: true,
+	sendOnEnter: true,
 	autoMicOnEmpty: false,
 	fullHeightCodeBlocks: false,
 	showRawModelNames: false,
@@ -126,6 +127,8 @@ export const SETTING_CONFIG_INFO: Record<string, string> = {
 		'Always keep the sidebar visible on desktop instead of auto-hiding it.',
 	autoShowSidebarOnNewChat:
 		'Automatically show sidebar when starting a new chat. Disable to keep the sidebar hidden until you click on it.',
+	sendOnEnter:
+		'Use Enter to send messages and Shift + Enter for new lines. When disabled, use Ctrl/Cmd + Enter.',
 	autoMicOnEmpty:
 		'Automatically show microphone button instead of send button when textarea is empty for models with audio modality support.',
 	fullHeightCodeBlocks:

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

@@ -11,6 +11,7 @@ export const SETTINGS_KEYS = {
 	SYSTEM_MESSAGE: 'systemMessage',
 	PASTE_LONG_TEXT_TO_FILE_LEN: 'pasteLongTextToFileLen',
 	COPY_TEXT_ATTACHMENTS_AS_PLAIN_TEXT: 'copyTextAttachmentsAsPlainText',
+	SEND_ON_ENTER: 'sendOnEnter',
 	ENABLE_CONTINUE_GENERATION: 'enableContinueGeneration',
 	PDF_AS_IMAGE: 'pdfAsImage',
 	ASK_FOR_TITLE_CONFIRMATION: 'askForTitleConfirmation',

tools/server/webui/src/lib/services/parameter-sync.service.ts

@@ -239,6 +239,12 @@ export const SYNCABLE_PARAMETERS: SyncableParameter[] = [
 		serverKey: 'excludeReasoningFromContext',
 		type: SyncableParameterType.BOOLEAN,
 		canSync: true
+	},
+	{
+		key: 'sendOnEnter',
+		serverKey: 'sendOnEnter',
+		type: SyncableParameterType.BOOLEAN,
+		canSync: true
 	}
 ];
 

tools/server/webui/src/lib/stores/settings.svelte.ts

@@ -37,6 +37,7 @@ import {
 	SETTING_CONFIG_DEFAULT,
 	USER_OVERRIDES_LOCALSTORAGE_KEY
 } from '$lib/constants';
+import { IsMobile } from '$lib/hooks/is-mobile.svelte';
 import { ParameterSyncService } from '$lib/services/parameter-sync.service';
 import { serverStore } from '$lib/stores/server.svelte';
 import {
@@ -122,6 +123,13 @@ class SettingsStore {
 				...savedVal
 			};
 
+			// Default sendOnEnter to false on mobile when the user has no saved preference
+			if (!('sendOnEnter' in savedVal)) {
+				if (new IsMobile().current) {
+					this.config.sendOnEnter = false;
+				}
+			}
+
 			// Load user overrides
 			const savedOverrides = JSON.parse(
 				localStorage.getItem(USER_OVERRIDES_LOCALSTORAGE_KEY) || '[]'