snapshot of https://github.com/jitsi/jitsi-meet.git @ fd1749dd28f4138aa80234fc7f311b19aaffa0e7 (2026-09-15)

react/features/pip/reducer.ts

@@ -0,0 +1,52 @@
+import ReducerRegistry from '../base/redux/ReducerRegistry';
+
+import { SET_PIP_ACTIVE, SET_PIP_WINDOW } from './actionTypes';
+
+/**
+ * The default state for the pip feature.
+ */
+const DEFAULT_STATE = {
+    isPiPActive: false,
+    pipWindow: null
+};
+
+export interface IPipState {
+    isPiPActive: boolean;
+
+    /**
+     * The Document PiP window this feature opened and initialized (stylesheets copied, #pip-root
+     * container created), or null when none is open. This differs from
+     * window.documentPictureInPicture.window, which is the browser's view of any Document PiP
+     * window open for the page regardless of who opened it. Kept in Redux so that every change
+     * to the reference is observable by React.
+     *
+     * The ts-ignore mirrors web-hid's HIDDevice: the pip feature is excluded from the native
+     * TypeScript config, which has no DOM lib defining Window, but this interface still reaches
+     * the native check through IReduxState. Types are erased at build time, so the suppression
+     * only affects the type check and nothing on native ever reads this field.
+     */
+    // @ts-ignore
+    pipWindow: Window | null;
+}
+
+/**
+ * Reduces the Redux actions of the pip feature.
+ */
+ReducerRegistry.register<IPipState>('features/pip', (state = DEFAULT_STATE, action): IPipState => {
+    switch (action.type) {
+    case SET_PIP_ACTIVE:
+        return {
+            ...state,
+            isPiPActive: action.isPiPActive
+        };
+
+    case SET_PIP_WINDOW:
+        return {
+            ...state,
+            pipWindow: action.pipWindow
+        };
+
+    default:
+        return state;
+    }
+});