Function useTarget

docs/app/js/sanddance-app.js:34881–34909

(target, hostElement)

var _react = require("react");
var _reactWindowProvider = require("@fluentui/react-window-provider");
function useTarget(target, hostElement) {
    var _a;
    var previousTargetProp = _react.useRef();
    var targetRef = _react.useRef(null);
    /**
     * Stores an instance of Window, used to check
     * for server side rendering and if focus was lost.
     */ var targetWindow = (0, _reactWindowProvider.useWindow)();
    // If the target element changed, find the new one. If we are tracking
    // target with class name, always find element because we do not know if
    // fabric has rendered a new element and disposed the old element.
    if (!target || target !== previousTargetProp.current || typeof target === "string") {
        var currentElement = (_a = hostElement) === null || _a === void 0 ? void 0 : _a.current;
        if (target) {
            if (typeof target === "string") {
                var currentDoc = (0, _utilities.getDocument)(currentElement);
                targetRef.current = currentDoc ? currentDoc.querySelector(target) : null;
            } else if ("stopPropagation" in target) targetRef.current = target;
            else if ("getBoundingClientRect" in target) targetRef.current = target;
            else if ("current" in target) targetRef.current = target.current;
            else targetRef.current = target;
        }
        previousTargetProp.current = target;
    }
    return [
        targetRef,
        targetWindow
    ];
}

},{"@uifabric/utilities":"uTCgd","react":"8ePka","@fluentui/react-window-provider":"5Gutx","@parcel/transformer-js/src/esmodule-helpers.js":"jA2du"}],"9U2u9":[function(require,module,exports) {
var parcelHelpers = require("@parcel/transformer-js/src/esmodule-helpers.js");