add dalle3 model

app/components/chat.tsx

@@ -37,6 +37,7 @@ import AutoIcon from "../icons/auto.svg";
 import BottomIcon from "../icons/bottom.svg";
 import StopIcon from "../icons/pause.svg";
 import RobotIcon from "../icons/robot.svg";
+import SizeIcon from "../icons/size.svg";
 import PluginIcon from "../icons/plugin.svg";
 
 import {
@@ -60,6 +61,7 @@ import {
   getMessageTextContent,
   getMessageImages,
   isVisionModel,
+  isDalle3,
 } from "../utils";
 
 import { uploadImage as uploadImageRemote } from "@/app/utils/chat";
@@ -481,6 +483,11 @@ export function ChatActions(props: {
   const [showPluginSelector, setShowPluginSelector] = useState(false);
   const [showUploadImage, setShowUploadImage] = useState(false);
 
+  const [showSizeSelector, setShowSizeSelector] = useState(false);
+  const dalle3Sizes = ["1024x1024", "1792x1024", "1024x1792"];
+  const currentSize =
+    chatStore.currentSession().mask.modelConfig?.size || "1024x1024";
+
   useEffect(() => {
     const show = isVisionModel(currentModel);
     setShowUploadImage(show);
@@ -624,6 +631,33 @@ export function ChatActions(props: {
         />
       )}
 
+      {isDalle3(currentModel) && (
+        <ChatAction
+          onClick={() => setShowSizeSelector(true)}
+          text={currentSize}
+          icon={<SizeIcon />}
+        />
+      )}
+
+      {showSizeSelector && (
+        <Selector
+          defaultSelectedValue={currentSize}
+          items={dalle3Sizes.map((m) => ({
+            title: m,
+            value: m,
+          }))}
+          onClose={() => setShowSizeSelector(false)}
+          onSelection={(s) => {
+            if (s.length === 0) return;
+            const size = s[0];
+            chatStore.updateCurrentSession((session) => {
+              session.mask.modelConfig.size = size;
+            });
+            showToast(size);
+          }}
+        />
+      )}
+
       <ChatAction
         onClick={() => setShowPluginSelector(true)}
         text={Locale.Plugin.Name}