feat: Fluent UI Outlook Lite + connections mockup

node_modules/@fluentui/react-drawer/lib-commonjs/components/DrawerBody/useDrawerBody.js

@@ -0,0 +1,92 @@
+'use client';
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+Object.defineProperty(exports, "useDrawerBody_unstable", {
+    enumerable: true,
+    get: function() {
+        return useDrawerBody_unstable;
+    }
+});
+const _interop_require_wildcard = require("@swc/helpers/_/_interop_require_wildcard");
+const _react = /*#__PURE__*/ _interop_require_wildcard._(require("react"));
+const _reactutilities = require("@fluentui/react-utilities");
+const _drawerContext = require("../../contexts/drawerContext");
+const _reactsharedcontexts = require("@fluentui/react-shared-contexts");
+/**
+ * Get the current scroll state of the DrawerBody.
+ *
+ * @internal
+ * @param element - HTMLElement to check scroll state of
+ */ const getScrollState = ({ scrollTop, scrollHeight, clientHeight })=>{
+    if (scrollHeight <= clientHeight) {
+        return 'none';
+    }
+    if (scrollTop === 0) {
+        return 'top';
+    }
+    if (scrollTop + clientHeight === scrollHeight) {
+        return 'bottom';
+    }
+    return 'middle';
+};
+const useDrawerBody_unstable = (props, ref)=>{
+    const { targetDocument } = (0, _reactsharedcontexts.useFluent_unstable)();
+    const win = targetDocument === null || targetDocument === void 0 ? void 0 : targetDocument.defaultView;
+    const { setScrollState } = (0, _drawerContext.useDrawerContext_unstable)();
+    const scrollRef = _react.useRef(null);
+    const mergedRef = (0, _reactutilities.useMergedRefs)(ref, scrollRef);
+    const [setScrollAnimationFrame, cancelScrollAnimationFrame] = (0, _reactutilities.useAnimationFrame)();
+    const [setResizeAnimationFrame, cancelResizeAnimationFrame] = (0, _reactutilities.useAnimationFrame)();
+    const updateScrollState = _react.useCallback(()=>{
+        if (!scrollRef.current) {
+            return;
+        }
+        setScrollState(getScrollState(scrollRef.current));
+    }, [
+        setScrollState
+    ]);
+    const onScroll = _react.useCallback(()=>{
+        cancelScrollAnimationFrame();
+        setScrollAnimationFrame(updateScrollState);
+    }, [
+        cancelScrollAnimationFrame,
+        setScrollAnimationFrame,
+        updateScrollState
+    ]);
+    // Update scroll state on children change
+    (0, _reactutilities.useIsomorphicLayoutEffect)(updateScrollState, [
+        props.children,
+        updateScrollState
+    ]);
+    // Update scroll state on mount and when resize occurs
+    (0, _reactutilities.useIsomorphicLayoutEffect)(()=>{
+        if (!scrollRef.current || !(win === null || win === void 0 ? void 0 : win.ResizeObserver)) {
+            return;
+        }
+        const observer = new win.ResizeObserver(()=>setResizeAnimationFrame(updateScrollState));
+        observer.observe(scrollRef.current);
+        return ()=>{
+            observer.disconnect();
+            cancelResizeAnimationFrame();
+        };
+    }, [
+        setResizeAnimationFrame,
+        cancelResizeAnimationFrame,
+        updateScrollState,
+        win
+    ]);
+    return {
+        components: {
+            root: 'div'
+        },
+        root: _reactutilities.slot.always((0, _reactutilities.getIntrinsicElementProps)('div', {
+            ref: mergedRef,
+            ...props,
+            onScroll: (0, _reactutilities.mergeCallbacks)(props.onScroll, onScroll)
+        }), {
+            elementType: 'div'
+        })
+    };
+};