AI chat panel with ⌘J toggle, DirectChatTransport, OpenRouter

- ChatPanel.vue: message list, tool timeline, typing indicator, API key setup
- use-chat.ts: Chat + DirectChatTransport + ToolLoopAgent (no backend)
- App.vue: toggle between PropertiesPanel and ChatPanel in same splitter slot
- ⌘J keyboard shortcut to open/close chat
This commit is contained in:
Danila Poyarkov 2026-03-01 10:31:57 +03:00
parent cc5dda29d9
commit 5d23c3e834
6 changed files with 383 additions and 1 deletions

View file

@ -5,8 +5,11 @@
"": {
"name": "open-pencil-app",
"dependencies": {
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"@ai-sdk/vue": "^3.0.105",
"@open-pencil/cli": "workspace:*",
"@open-pencil/core": "workspace:*",
"@openrouter/ai-sdk-provider": "^2.2.3",
"@tailwindcss/vite": "^4.2.1",
"@tanstack/vue-table": "^8.21.3",
"@tauri-apps/api": "^2",
@ -14,6 +17,7 @@
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"@tauri-apps/plugin-opener": "^2",
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"ai": "^6.0.105",
"canvaskit-wasm": "^0.40.0",
"culori": "^4.0.2",
"fflate": "^0.8.2",
@ -72,6 +76,16 @@
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@ -166,6 +180,10 @@
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View file

@ -22,8 +22,11 @@
"open-pencil": "bun packages/cli/src/index.ts"
},
"dependencies": {
"@ai-sdk/openai": "^3.0.37",
"@ai-sdk/vue": "^3.0.105",
"@open-pencil/cli": "workspace:*",
"@open-pencil/core": "workspace:*",
"@openrouter/ai-sdk-provider": "^2.2.3",
"@tailwindcss/vite": "^4.2.1",
"@tanstack/vue-table": "^8.21.3",
"@tauri-apps/api": "^2",
@ -31,6 +34,7 @@
"@tauri-apps/plugin-fs": "^2.4.5",
"@tauri-apps/plugin-opener": "^2",
"@vueuse/core": "^14.2.1",
"ai": "^6.0.105",
"canvaskit-wasm": "^0.40.0",
"culori": "^4.0.2",
"fflate": "^0.8.2",

View file

@ -2,11 +2,13 @@
import { useEventListener, useUrlSearchParams } from '@vueuse/core'
import { SplitterGroup, SplitterPanel, SplitterResizeHandle } from 'reka-ui'
import { useAIChat } from './composables/use-chat'
import { useKeyboard } from './composables/use-keyboard'
import { useMenu } from './composables/use-menu'
import { createDemoShapes } from './demo'
import { provideEditorStore } from './stores/editor'
import ChatPanel from './components/ChatPanel.vue'
import EditorCanvas from './components/EditorCanvas.vue'
import LayersPanel from './components/LayersPanel.vue'
import PropertiesPanel from './components/PropertiesPanel.vue'
@ -17,6 +19,8 @@ useKeyboard(store)
useMenu(store)
;(window as Window & { __OPEN_PENCIL_STORE__?: typeof store }).__OPEN_PENCIL_STORE__ = store
const { chatPanelOpen } = useAIChat()
useEventListener(
document,
'wheel',
@ -57,7 +61,8 @@ if (!('test' in params)) {
<div class="pointer-events-none absolute inset-y-0 left-1/2 w-px -translate-x-1/2" />
</SplitterResizeHandle>
<SplitterPanel :default-size="15" :min-size="10" :max-size="30" class="flex">
<PropertiesPanel />
<ChatPanel v-if="chatPanelOpen" />
<PropertiesPanel v-else />
</SplitterPanel>
</SplitterGroup>
<div v-else class="flex flex-1 overflow-hidden">

View file

@ -0,0 +1,280 @@
<script setup lang="ts">
import { computed, nextTick, ref, watch } from 'vue'
import { useAIChat } from '@/composables/use-chat'
import type { DesignMessage } from '@/composables/use-chat'
import type { Chat } from '@ai-sdk/vue'
const { apiKey, isConfigured, createChat } = useAIChat()
const chat = ref<Chat<DesignMessage> | null>(null)
const input = ref('')
const messagesEnd = ref<HTMLDivElement>()
const apiKeyInput = ref('')
const messages = computed(() => chat.value?.messages ?? [])
const status = computed(() => chat.value?.status ?? 'ready')
const isStreaming = computed(() => status.value === 'streaming' || status.value === 'submitted')
function ensureChat() {
if (!chat.value && isConfigured.value) {
chat.value = createChat()
}
return chat.value
}
function scrollToBottom() {
nextTick(() => {
messagesEnd.value?.scrollIntoView({ behavior: 'smooth', block: 'end' })
})
}
watch(messages, scrollToBottom, { deep: true })
function handleSubmit(e: Event) {
e.preventDefault()
const text = input.value.trim()
if (!text) return
const c = ensureChat()
if (!c) return
c.sendMessage({ text })
input.value = ''
}
function handleStop() {
chat.value?.stop()
}
function saveApiKey() {
apiKey.value = apiKeyInput.value.trim()
apiKeyInput.value = ''
}
function getTextContent(msg: DesignMessage): string {
return msg.parts
.filter((p): p is { type: 'text'; text: string } => p.type === 'text')
.map((p) => p.text)
.join('')
}
interface ToolPart {
type: string
toolCallId: string
toolName: string
state: string
input?: unknown
output?: unknown
errorText?: string
}
function isToolPart(part: unknown): part is ToolPart {
return (
typeof part === 'object' &&
part !== null &&
'type' in part &&
typeof (part as ToolPart).type === 'string' &&
(part as ToolPart).type.startsWith('tool-')
)
}
function getToolParts(msg: DesignMessage): ToolPart[] {
return msg.parts.filter(isToolPart)
}
function toolDisplayName(name: string): string {
return name.replace(/_/g, ' ').replace(/\b\w/g, (c) => c.toUpperCase())
}
function toolState(part: ToolPart): 'pending' | 'done' | 'error' {
if (part.state === 'error') return 'error'
if (part.state === 'output-available') return 'done'
return 'pending'
}
</script>
<template>
<aside
class="flex min-w-0 flex-1 flex-col overflow-hidden border-l border-border bg-panel"
style="contain: paint layout style"
>
<!-- Header -->
<div class="flex h-10 shrink-0 items-center gap-2 border-b border-border px-3">
<icon-lucide-sparkles class="size-4 text-accent" />
<span class="text-xs font-semibold">AI Chat</span>
<span v-if="isStreaming" class="ml-auto text-[10px] text-muted"> streaming… </span>
</div>
<!-- API key setup -->
<div v-if="!isConfigured" class="flex flex-1 flex-col items-center justify-center gap-4 px-4">
<icon-lucide-key-round class="size-8 text-muted" />
<p class="text-center text-xs text-muted">Enter your OpenRouter API key to start chatting.</p>
<form class="flex w-full gap-1.5" @submit.prevent="saveApiKey">
<input
v-model="apiKeyInput"
type="password"
placeholder="sk-or-…"
class="min-w-0 flex-1 rounded border border-border bg-input px-2 py-1 text-xs text-surface outline-none focus:border-accent"
/>
<button
type="submit"
class="shrink-0 rounded bg-accent px-2.5 py-1 text-xs font-medium text-white hover:bg-accent/90"
:disabled="!apiKeyInput.trim()"
>
Save
</button>
</form>
<a
href="https://openrouter.ai/keys"
target="_blank"
class="text-[10px] text-muted underline hover:text-surface"
>
Get an API key →
</a>
</div>
<!-- Chat messages -->
<template v-else>
<div class="flex-1 overflow-y-auto px-3 py-3">
<!-- Empty state -->
<div
v-if="messages.length === 0"
class="flex h-full flex-col items-center justify-center gap-3 text-muted"
>
<icon-lucide-message-circle class="size-8 opacity-50" />
<p class="text-xs">Describe what you want to create or change.</p>
</div>
<!-- Messages -->
<div v-else class="flex flex-col gap-3">
<div
v-for="msg in messages"
:key="msg.id"
class="flex gap-2"
:class="msg.role === 'user' ? 'flex-row-reverse' : ''"
>
<!-- Avatar -->
<div
class="flex size-6 shrink-0 items-center justify-center rounded-full text-[10px] font-bold"
:class="msg.role === 'user' ? 'bg-accent/20 text-accent' : 'bg-muted/20 text-muted'"
>
{{ msg.role === 'user' ? 'U' : 'AI' }}
</div>
<!-- Content -->
<div class="min-w-0 max-w-[85%] space-y-1.5">
<!-- Tool timeline -->
<div
v-if="msg.role === 'assistant' && getToolParts(msg).length > 0"
class="rounded-lg border border-border bg-canvas p-2"
>
<div
v-for="tool in getToolParts(msg)"
:key="tool.toolCallId"
class="flex items-center gap-2 py-0.5"
>
<div
class="flex size-4 items-center justify-center rounded-full"
:class="{
'bg-accent/20 text-accent': toolState(tool) === 'pending',
'bg-green-500/20 text-green-400': toolState(tool) === 'done',
'bg-red-500/20 text-red-400': toolState(tool) === 'error'
}"
>
<icon-lucide-loader-circle
v-if="toolState(tool) === 'pending'"
class="size-3 animate-spin"
/>
<icon-lucide-check v-else-if="toolState(tool) === 'done'" class="size-3" />
<icon-lucide-triangle-alert v-else class="size-3" />
</div>
<span class="text-[11px] text-surface">
{{ toolDisplayName(tool.toolName) }}
</span>
<span class="text-[10px] text-muted">
{{
toolState(tool) === 'pending'
? 'Running…'
: toolState(tool) === 'done'
? 'Done'
: 'Error'
}}
</span>
</div>
</div>
<!-- Text bubble -->
<div
v-if="getTextContent(msg)"
class="whitespace-pre-wrap rounded-xl px-3 py-2 text-xs leading-relaxed"
:class="
msg.role === 'user'
? 'rounded-br-md bg-accent text-white'
: 'rounded-tl-md bg-hover text-surface'
"
>
{{ getTextContent(msg) }}
</div>
</div>
</div>
<!-- Typing indicator -->
<div v-if="status === 'submitted'" class="flex gap-2">
<div
class="flex size-6 shrink-0 items-center justify-center rounded-full bg-muted/20 text-[10px] font-bold text-muted"
>
AI
</div>
<div class="flex items-center gap-1 py-2">
<span
class="size-1.5 animate-bounce rounded-full bg-muted"
style="animation-delay: 0ms"
/>
<span
class="size-1.5 animate-bounce rounded-full bg-muted"
style="animation-delay: 150ms"
/>
<span
class="size-1.5 animate-bounce rounded-full bg-muted"
style="animation-delay: 300ms"
/>
</div>
</div>
<div ref="messagesEnd" />
</div>
</div>
<!-- Input -->
<div class="shrink-0 border-t border-border px-3 py-2">
<form class="flex gap-1.5" @submit="handleSubmit">
<input
v-model="input"
type="text"
placeholder="Describe a change…"
class="min-w-0 flex-1 rounded border border-border bg-input px-2.5 py-1.5 text-xs text-surface outline-none placeholder:text-muted focus:border-accent"
:disabled="status === 'submitted'"
/>
<button
v-if="isStreaming"
type="button"
class="shrink-0 rounded border border-border px-2 py-1.5 text-xs text-muted hover:bg-hover"
@click="handleStop"
>
<icon-lucide-square class="size-3" />
</button>
<button
v-else
type="submit"
class="shrink-0 rounded bg-accent px-2.5 py-1.5 text-xs font-medium text-white hover:bg-accent/90"
:disabled="!input.trim()"
>
<icon-lucide-send class="size-3" />
</button>
</form>
</div>
</template>
</aside>
</template>

View file

@ -0,0 +1,54 @@
import { Chat } from '@ai-sdk/vue'
import { createOpenRouter } from '@openrouter/ai-sdk-provider'
import { DirectChatTransport, ToolLoopAgent } from 'ai'
import { computed, ref, watch } from 'vue'
import type { InferAgentUIMessage } from 'ai'
const API_KEY_STORAGE = 'open-pencil:openrouter-api-key'
const apiKey = ref(localStorage.getItem(API_KEY_STORAGE) ?? '')
const chatPanelOpen = ref(false)
watch(apiKey, (key) => {
if (key) {
localStorage.setItem(API_KEY_STORAGE, key)
} else {
localStorage.removeItem(API_KEY_STORAGE)
}
})
const isConfigured = computed(() => apiKey.value.length > 0)
function createAgent() {
const openrouter = createOpenRouter({ apiKey: apiKey.value })
return new ToolLoopAgent({
model: openrouter('anthropic/claude-sonnet-4'),
instructions:
'You are a design assistant inside OpenPencil, a Figma-like design editor. ' +
'Help users create and modify designs. Be concise and direct.'
})
}
type DesignAgent = ReturnType<typeof createAgent>
export type DesignMessage = InferAgentUIMessage<DesignAgent>
function createChat() {
if (!apiKey.value) return null
const agent = createAgent()
return new Chat<DesignMessage>({
transport: new DirectChatTransport({ agent })
})
}
export function useAIChat() {
return {
apiKey,
chatPanelOpen,
isConfigured,
createChat
}
}

View file

@ -1,5 +1,6 @@
import { useEventListener } from '@vueuse/core'
import { useAIChat } from '@/composables/use-chat'
import { TOOL_SHORTCUTS } from '@/stores/editor'
import { openFileDialog } from './use-menu'
@ -11,6 +12,7 @@ function isEditing(e: Event) {
}
export function useKeyboard(store: EditorStore) {
const { chatPanelOpen } = useAIChat()
useEventListener(window, 'copy', (e: ClipboardEvent) => {
if (isEditing(e)) return
e.preventDefault()
@ -79,6 +81,11 @@ export function useKeyboard(store: EditorStore) {
}
if (e.metaKey || e.ctrlKey) {
if (e.code === 'KeyJ') {
e.preventDefault()
chatPanelOpen.value = !chatPanelOpen.value
return
}
if (e.key === 'z' && !e.shiftKey) {
e.preventDefault()
store.undoAction()