feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

frontend/packages/common/chat-area/chat-uikit-shared/src/context/event-center/context.tsx

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+import { type PropsWithChildren, createContext } from 'react';
+
+import mitt from 'mitt';
+import { useCreation } from 'ahooks';
+
+import {
+  type UIKitEventMap,
+  type UIKitEventCenter,
+  type UIKitEventProviderProps,
+} from './type';
+import { useObserveChatContainer } from './hooks';
+
+export const UIKitEventContext = createContext<UIKitEventCenter | null>(null);
+
+export const UIKitEventProvider: React.FC<
+  PropsWithChildren<UIKitEventProviderProps>
+> = ({ chatContainerRef, children }) => {
+  const eventCenter = useCreation(() => mitt<UIKitEventMap>(), []);
+
+  useObserveChatContainer({ eventCenter, chatContainerRef });
+
+  return (
+    <UIKitEventContext.Provider value={eventCenter}>
+      {children}
+    </UIKitEventContext.Provider>
+  );
+};

frontend/packages/common/chat-area/chat-uikit-shared/src/context/event-center/hooks.ts

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+import { useEffect, type RefObject } from 'react';
+
+import { type Emitter } from 'mitt';
+
+import { UIKitEvents, type UIKitEventMap } from './type';
+
+export const useObserveChatContainer = ({
+  eventCenter,
+  chatContainerRef,
+}: {
+  eventCenter: Emitter<UIKitEventMap>;
+  chatContainerRef: RefObject<HTMLDivElement>;
+}) => {
+  useEffect(() => {
+    if (!chatContainerRef.current) {
+      return;
+    }
+    const resizeObserver = new ResizeObserver(() => {
+      eventCenter.emit(UIKitEvents.WINDOW_RESIZE);
+    });
+
+    resizeObserver.observe(chatContainerRef.current);
+
+    return () => {
+      resizeObserver.disconnect();
+    };
+  }, []);
+};

frontend/packages/common/chat-area/chat-uikit-shared/src/context/event-center/index.ts

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+import { useContext } from 'react';
+
+import { UIKitEventContext } from './context';
+
+export const useUiKitEventCenter = () => useContext(UIKitEventContext);

frontend/packages/common/chat-area/chat-uikit-shared/src/context/event-center/type.ts

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+import { type RefObject } from 'react';
+
+import { type Emitter } from 'mitt';
+
+export enum UIKitEvents {
+  WINDOW_RESIZE,
+  AFTER_CARD_RENDER,
+}
+
+// eslint-disable-next-line @typescript-eslint/consistent-type-definitions -- mitt 的类型不认 interface
+export type UIKitEventMap = {
+  [UIKitEvents.WINDOW_RESIZE]: undefined;
+  [UIKitEvents.AFTER_CARD_RENDER]: { messageId: string };
+};
+
+export type UIKitEventCenter = Emitter<UIKitEventMap>;
+
+export interface UIKitEventProviderProps {
+  chatContainerRef: RefObject<HTMLDivElement>;
+}