var __extends = (this && this.__extends) || (function () {
    var extendStatics = Object.setPrototypeOf ||
        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var __assign = (this && this.__assign) || Object.assign || function(t) {
    for (var s, i = 1, n = arguments.length; i < n; i++) {
        s = arguments[i];
        for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
            t[p] = s[p];
    }
    return t;
};
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
define(["require", "exports", "react", "../../Utilities"], function (require, exports, React, Utilities_1) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    var FocusTrapZone = (function (_super) {
        __extends(FocusTrapZone, _super);
        function FocusTrapZone() {
            var _this = _super !== null && _super.apply(this, arguments) || this;
            _this._isInFocusStack = false;
            _this._isInClickStack = false;
            return _this;
        }
        FocusTrapZone.prototype.componentWillMount = function () {
            var _a = this.props, _b = _a.isClickableOutsideFocusTrap, isClickableOutsideFocusTrap = _b === void 0 ? false : _b, _c = _a.forceFocusInsideTrap, forceFocusInsideTrap = _c === void 0 ? true : _c;
            if (forceFocusInsideTrap) {
                this._isInFocusStack = true;
                FocusTrapZone._focusStack.push(this);
            }
            if (!isClickableOutsideFocusTrap) {
                this._isInClickStack = true;
                FocusTrapZone._clickStack.push(this);
            }
        };
        FocusTrapZone.prototype.componentDidMount = function () {
            var _a = this.props, _b = _a.isClickableOutsideFocusTrap, isClickableOutsideFocusTrap = _b === void 0 ? false : _b, _c = _a.forceFocusInsideTrap, forceFocusInsideTrap = _c === void 0 ? true : _c, elementToFocusOnDismiss = _a.elementToFocusOnDismiss;
            this._previouslyFocusedElement = elementToFocusOnDismiss ? elementToFocusOnDismiss : document.activeElement;
            if (!Utilities_1.elementContains(this.refs.root, this._previouslyFocusedElement)) {
                this.focus();
            }
            if (forceFocusInsideTrap) {
                this._events.on(window, 'focus', this._forceFocusInTrap, true);
            }
            if (!isClickableOutsideFocusTrap) {
                this._events.on(window, 'click', this._forceClickInTrap, true);
            }
        };
        FocusTrapZone.prototype.componentWillReceiveProps = function (nextProps) {
            var elementToFocusOnDismiss = nextProps.elementToFocusOnDismiss;
            if (elementToFocusOnDismiss && this._previouslyFocusedElement !== elementToFocusOnDismiss) {
                this._previouslyFocusedElement = elementToFocusOnDismiss;
            }
        };
        FocusTrapZone.prototype.componentWillUnmount = function () {
            var _this = this;
            var ignoreExternalFocusing = this.props.ignoreExternalFocusing;
            this._events.dispose();
            if (this._isInFocusStack || this._isInClickStack) {
                var filter = function (value) {
                    return _this !== value;
                };
                if (this._isInFocusStack) {
                    FocusTrapZone._focusStack = FocusTrapZone._focusStack.filter(filter);
                }
                if (this._isInClickStack) {
                    FocusTrapZone._clickStack = FocusTrapZone._clickStack.filter(filter);
                }
            }
            if (!ignoreExternalFocusing && this._previouslyFocusedElement && typeof this._previouslyFocusedElement.focus === 'function') {
                this._previouslyFocusedElement.focus();
            }
        };
        FocusTrapZone.prototype.render = function () {
            var _a = this.props, className = _a.className, ariaLabelledBy = _a.ariaLabelledBy;
            var divProps = Utilities_1.getNativeProps(this.props, Utilities_1.divProperties);
            return (React.createElement("div", __assign({}, divProps, { className: className, ref: 'root', "aria-labelledby": ariaLabelledBy, onKeyDown: this._onKeyboardHandler }), this.props.children));
        };
        /**
         * Need to expose this method in case of popups since focus needs to be set when popup is opened
         */
        FocusTrapZone.prototype.focus = function () {
            var firstFocusableSelector = this.props.firstFocusableSelector;
            var _firstFocusableChild;
            var root = this.refs.root;
            if (firstFocusableSelector) {
                _firstFocusableChild = root.querySelector('.' + firstFocusableSelector);
            }
            else {
                _firstFocusableChild = Utilities_1.getNextElement(root, root.firstChild, true, false, false, true);
            }
            if (_firstFocusableChild) {
                _firstFocusableChild.focus();
            }
        };
        FocusTrapZone.prototype._onKeyboardHandler = function (ev) {
            if (ev.which !== Utilities_1.KeyCodes.tab) {
                return;
            }
            var root = this.refs.root;
            var _firstFocusableChild = Utilities_1.getFirstFocusable(root, root.firstChild, true);
            var _lastFocusableChild = Utilities_1.getLastFocusable(root, root.lastChild, true);
            if (ev.shiftKey && _firstFocusableChild === ev.target) {
                _lastFocusableChild.focus();
                ev.preventDefault();
                ev.stopPropagation();
            }
            else if (!ev.shiftKey && _lastFocusableChild === ev.target) {
                _firstFocusableChild.focus();
                ev.preventDefault();
                ev.stopPropagation();
            }
        };
        FocusTrapZone.prototype._forceFocusInTrap = function (ev) {
            if (FocusTrapZone._focusStack.length && this === FocusTrapZone._focusStack[FocusTrapZone._focusStack.length - 1]) {
                var focusedElement = document.activeElement;
                if (!Utilities_1.elementContains(this.refs.root, focusedElement)) {
                    this.focus();
                    ev.preventDefault();
                    ev.stopPropagation();
                }
            }
        };
        FocusTrapZone.prototype._forceClickInTrap = function (ev) {
            if (FocusTrapZone._clickStack.length && this === FocusTrapZone._clickStack[FocusTrapZone._clickStack.length - 1]) {
                var clickedElement = ev.target;
                if (clickedElement && !Utilities_1.elementContains(this.refs.root, clickedElement)) {
                    this.focus();
                    ev.preventDefault();
                    ev.stopPropagation();
                }
            }
        };
        return FocusTrapZone;
    }(Utilities_1.BaseComponent));
    FocusTrapZone._focusStack = [];
    FocusTrapZone._clickStack = [];
    __decorate([
        Utilities_1.autobind
    ], FocusTrapZone.prototype, "_onKeyboardHandler", null);
    exports.FocusTrapZone = FocusTrapZone;
});

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