"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var React = require("react");
var Utilities_1 = require("../../Utilities");
var FocusZone_1 = require("../../FocusZone");
var Callout_1 = require("../../Callout");
var index_1 = require("../../utilities/selection/index");
var Suggestions_1 = require("./Suggestions/Suggestions");
var Suggestions_styles_1 = require("./Suggestions/Suggestions.styles");
var SuggestionsController_1 = require("./Suggestions/SuggestionsController");
var BasePicker_types_1 = require("./BasePicker.types");
var index_2 = require("../Autofill/index");
var stylesImport = require("./BasePicker.scss");
var legacyStyles = stylesImport;
var getClassNames = Utilities_1.classNamesFunction();
var BasePicker = /** @class */ (function (_super) {
    tslib_1.__extends(BasePicker, _super);
    function BasePicker(basePickerProps) {
        var _this = _super.call(this, basePickerProps) || this;
        // Refs
        _this.root = React.createRef();
        _this.input = React.createRef();
        _this.focusZone = React.createRef();
        _this.suggestionElement = React.createRef();
        _this.SuggestionOfProperType = Suggestions_1.Suggestions;
        _this.dismissSuggestions = function (ev) {
            var selectItemFunction = function () {
                if (_this.props.onDismiss) {
                    _this.props.onDismiss(ev, _this.suggestionStore.currentSuggestion ? _this.suggestionStore.currentSuggestion.item : undefined);
                }
                if (!ev || (ev && !ev.defaultPrevented)) {
                    // Select the first suggestion if one is available when user leaves.
                    if (_this.canAddItems() && _this.suggestionStore.hasSelectedSuggestion() && _this.state.suggestedDisplayValue) {
                        _this.addItemByIndex(0);
                    }
                }
            };
            if (_this.currentPromise) {
                _this.currentPromise.then(function () { return selectItemFunction(); });
            }
            else {
                selectItemFunction();
            }
            _this.setState({ suggestionsVisible: false });
        };
        _this.refocusSuggestions = function (keyCode) {
            _this.resetFocus();
            if (_this.suggestionStore.suggestions && _this.suggestionStore.suggestions.length > 0) {
                if (keyCode === Utilities_1.KeyCodes.up) {
                    _this.suggestionStore.setSelectedSuggestion(_this.suggestionStore.suggestions.length - 1);
                }
                else if (keyCode === Utilities_1.KeyCodes.down) {
                    _this.suggestionStore.setSelectedSuggestion(0);
                }
            }
        };
        _this.onInputChange = function (value) {
            _this.updateValue(value);
            _this.setState({
                moreSuggestionsAvailable: true,
                isMostRecentlyUsedVisible: false
            });
        };
        _this.onSuggestionClick = function (ev, item, index) {
            _this.addItemByIndex(index);
            _this.setState({ suggestionsVisible: false });
        };
        _this.onSuggestionRemove = function (ev, item, index) {
            if (_this.props.onRemoveSuggestion) {
                _this.props.onRemoveSuggestion(item);
            }
            _this.suggestionStore.removeSuggestion(index);
        };
        _this.onInputFocus = function (ev) {
            // Only trigger all of the focus if this component isn't already focused.
            // For example when an item is selected or removed from the selected list it should be treated
            // as though the input is still focused.
            if (!_this.state.isFocused) {
                _this.setState({ isFocused: true });
                _this.selection.setAllSelected(false);
                if (_this.input.current && _this.input.current.value === '' && _this.props.onEmptyInputFocus) {
                    _this.onEmptyInputFocus();
                    _this.setState({
                        isMostRecentlyUsedVisible: true,
                        moreSuggestionsAvailable: false,
                        suggestionsVisible: true
                    });
                }
                else if (_this.input.current && _this.input.current.value) {
                    _this.setState({
                        isMostRecentlyUsedVisible: false,
                        suggestionsVisible: true
                    });
                }
                if (_this.props.inputProps && _this.props.inputProps.onFocus) {
                    _this.props.inputProps.onFocus(ev);
                }
            }
        };
        _this.onInputBlur = function (ev) {
            if (_this.props.inputProps && _this.props.inputProps.onBlur) {
                _this.props.inputProps.onBlur(ev);
            }
        };
        _this.onBlur = function (ev) {
            if (_this.state.isFocused) {
                // Only blur the entire component if an unrelated element gets focus. Otherwise treat it as though it still has focus.
                // Do nothing if the blur is coming from something
                // inside the comboBox root or the comboBox menu since
                // it we are not really bluring from the whole comboBox
                var relatedTarget = ev.relatedTarget;
                if (ev.relatedTarget === null) {
                    // In IE11, due to lack of support, event.relatedTarget is always
                    // null making every onBlur call to be "outside" of the ComboBox
                    // even when it's not. Using document.activeElement is another way
                    // for us to be able to get what the relatedTarget without relying
                    // on the event
                    relatedTarget = document.activeElement;
                }
                if (relatedTarget && !Utilities_1.elementContains(_this.root.current, relatedTarget)) {
                    _this.setState({ isFocused: false });
                    if (_this.props.onBlur) {
                        _this.props.onBlur(ev);
                    }
                }
            }
        };
        _this.onKeyDown = function (ev) {
            var keyCode = ev.which;
            switch (keyCode) {
                case Utilities_1.KeyCodes.escape:
                    if (_this.state.suggestionsVisible) {
                        _this.setState({ suggestionsVisible: false });
                        ev.preventDefault();
                        ev.stopPropagation();
                    }
                    break;
                case Utilities_1.KeyCodes.tab:
                case Utilities_1.KeyCodes.enter:
                    if (_this.suggestionElement.current && _this.suggestionElement.current.hasSuggestedActionSelected()) {
                        _this.suggestionElement.current.executeSelectedAction();
                    }
                    else if (!ev.shiftKey && _this.suggestionStore.hasSelectedSuggestion() && _this.state.suggestionsVisible) {
                        _this.completeSuggestion();
                        ev.preventDefault();
                        ev.stopPropagation();
                    }
                    else {
                        _this._onValidateInput();
                    }
                    break;
                case Utilities_1.KeyCodes.backspace:
                    if (!_this.props.disabled) {
                        _this.onBackspace(ev);
                    }
                    ev.stopPropagation();
                    break;
                case Utilities_1.KeyCodes.del:
                    if (!_this.props.disabled) {
                        if (_this.input.current &&
                            ev.target === _this.input.current.inputElement &&
                            _this.state.suggestionsVisible &&
                            _this.suggestionStore.currentIndex !== -1) {
                            if (_this.props.onRemoveSuggestion) {
                                _this.props.onRemoveSuggestion(_this.suggestionStore.currentSuggestion.item);
                            }
                            _this.suggestionStore.removeSuggestion(_this.suggestionStore.currentIndex);
                            _this.forceUpdate();
                        }
                        else {
                            _this.onBackspace(ev);
                        }
                    }
                    ev.stopPropagation();
                    break;
                case Utilities_1.KeyCodes.up:
                    if (_this.input.current && ev.target === _this.input.current.inputElement && _this.state.suggestionsVisible) {
                        if (_this.suggestionElement.current &&
                            _this.suggestionElement.current.tryHandleKeyDown(keyCode, _this.suggestionStore.currentIndex)) {
                            ev.preventDefault();
                            ev.stopPropagation();
                        }
                        else {
                            if (_this.suggestionElement.current &&
                                _this.suggestionElement.current.hasSuggestedAction() &&
                                _this.suggestionStore.currentIndex === 0) {
                                ev.preventDefault();
                                ev.stopPropagation();
                                _this.suggestionElement.current.focusAboveSuggestions();
                                _this.suggestionStore.deselectAllSuggestions();
                                _this.forceUpdate();
                            }
                            else {
                                if (_this.suggestionStore.previousSuggestion()) {
                                    ev.preventDefault();
                                    ev.stopPropagation();
                                    _this.onSuggestionSelect();
                                }
                            }
                        }
                    }
                    break;
                case Utilities_1.KeyCodes.down:
                    if (_this.input.current && ev.target === _this.input.current.inputElement && _this.state.suggestionsVisible) {
                        if (_this.suggestionElement.current &&
                            _this.suggestionElement.current.tryHandleKeyDown(keyCode, _this.suggestionStore.currentIndex)) {
                            ev.preventDefault();
                            ev.stopPropagation();
                        }
                        else {
                            if (_this.suggestionElement.current &&
                                _this.suggestionElement.current.hasSuggestedAction() &&
                                _this.suggestionStore.currentIndex + 1 === _this.suggestionStore.suggestions.length) {
                                ev.preventDefault();
                                ev.stopPropagation();
                                _this.suggestionElement.current.focusBelowSuggestions();
                                _this.suggestionStore.deselectAllSuggestions();
                                _this.forceUpdate();
                            }
                            else {
                                if (_this.suggestionStore.nextSuggestion()) {
                                    ev.preventDefault();
                                    ev.stopPropagation();
                                    _this.onSuggestionSelect();
                                }
                            }
                        }
                    }
                    break;
            }
        };
        _this.onItemChange = function (changedItem, index) {
            var items = _this.state.items;
            if (index >= 0) {
                var newItems = items;
                newItems[index] = changedItem;
                _this._updateSelectedItems(newItems);
            }
        };
        _this.onGetMoreResults = function () {
            _this.setState({
                isSearching: true
            }, function () {
                if (_this.props.onGetMoreResults && _this.input.current) {
                    var suggestions = _this.props.onGetMoreResults(_this.input.current.value, _this.state.items);
                    var suggestionsArray = suggestions;
                    var suggestionsPromiseLike = suggestions;
                    if (Array.isArray(suggestionsArray)) {
                        _this.updateSuggestions(suggestionsArray);
                        _this.setState({ isSearching: false });
                    }
                    else if (suggestionsPromiseLike.then) {
                        suggestionsPromiseLike.then(function (newSuggestions) {
                            _this.updateSuggestions(newSuggestions);
                            _this.setState({ isSearching: false });
                        });
                    }
                }
                else {
                    _this.setState({ isSearching: false });
                }
                if (_this.input.current) {
                    _this.input.current.focus();
                }
                _this.setState({
                    moreSuggestionsAvailable: false,
                    isResultsFooterVisible: true
                });
            });
        };
        _this.addItemByIndex = function (index) {
            _this.addItem(_this.suggestionStore.getSuggestionAtIndex(index).item);
            if (_this.input.current) {
                _this.input.current.clear();
            }
            _this.updateValue('');
        };
        _this.addItem = function (item) {
            var processedItem = _this.props.onItemSelected ? _this.props.onItemSelected(item) : item;
            if (processedItem === null) {
                return;
            }
            var processedItemObject = processedItem;
            var processedItemPromiseLike = processedItem;
            if (processedItemPromiseLike && processedItemPromiseLike.then) {
                processedItemPromiseLike.then(function (resolvedProcessedItem) {
                    var newItems = _this.state.items.concat([resolvedProcessedItem]);
                    _this._updateSelectedItems(newItems);
                });
            }
            else {
                var newItems = _this.state.items.concat([processedItemObject]);
                _this._updateSelectedItems(newItems);
            }
            _this.setState({ suggestedDisplayValue: '' });
        };
        _this.removeItem = function (item, focusNextItem) {
            var items = _this.state.items;
            var index = items.indexOf(item);
            if (index >= 0) {
                var newItems = items.slice(0, index).concat(items.slice(index + 1));
                _this._updateSelectedItems(newItems, focusNextItem ? index : undefined);
            }
        };
        _this.removeItems = function (itemsToRemove) {
            var items = _this.state.items;
            var newItems = items.filter(function (item) { return itemsToRemove.indexOf(item) === -1; });
            var firstItemToRemove = itemsToRemove[0];
            var index = items.indexOf(firstItemToRemove);
            _this._updateSelectedItems(newItems, index);
        };
        _this._isFocusZoneInnerKeystroke = function (ev) {
            // If suggestions are shown const up/down keys control them, otherwise allow them through to control the focusZone.
            if (_this.state.suggestionsVisible) {
                switch (ev.which) {
                    case Utilities_1.KeyCodes.up:
                    case Utilities_1.KeyCodes.down:
                        return true;
                }
            }
            if (ev.which === Utilities_1.KeyCodes.enter) {
                return true;
            }
            return false;
        };
        var items = basePickerProps.selectedItems || basePickerProps.defaultSelectedItems || [];
        _this._id = Utilities_1.getId();
        _this._ariaMap = {
            selectedItems: "selected-items-" + _this._id,
            selectedSuggestionAlert: "selected-suggestion-alert-" + _this._id,
            suggestionList: "suggestion-list-" + _this._id
        };
        _this.suggestionStore = new SuggestionsController_1.SuggestionsController();
        _this.selection = new index_1.Selection({ onSelectionChanged: function () { return _this.onSelectionChange(); } });
        _this.selection.setItems(items);
        _this.state = {
            items: items,
            suggestedDisplayValue: '',
            isMostRecentlyUsedVisible: false,
            moreSuggestionsAvailable: false,
            isFocused: false,
            isSearching: false,
            selectedIndices: []
        };
        return _this;
    }
    Object.defineProperty(BasePicker.prototype, "items", {
        get: function () {
            return this.state.items;
        },
        enumerable: true,
        configurable: true
    });
    BasePicker.prototype.componentWillUpdate = function (newProps, newState) {
        if (newState.items && newState.items !== this.state.items) {
            this.selection.setItems(newState.items);
        }
    };
    BasePicker.prototype.componentDidMount = function () {
        this.selection.setItems(this.state.items);
        this._onResolveSuggestions = this._async.debounce(this._onResolveSuggestions, this.props.resolveDelay);
    };
    BasePicker.prototype.componentWillReceiveProps = function (newProps) {
        var _this = this;
        var newItems = newProps.selectedItems;
        if (newItems) {
            var focusIndex_1;
            // If there are less new items than old items then something was removed and we
            // should try to keep focus consistent
            if (newItems.length < this.state.items.length) {
                focusIndex_1 = this.state.items.indexOf(this.selection.getSelection()[0]);
            }
            this.setState({
                items: newProps.selectedItems
            }, function () {
                // Only update the focus if this component is currently focused to ensure that the basepicker
                // doesn't steal focus from something else.
                if (_this.state.isFocused) {
                    // Need to reset focus in the same that way that we do if an item is selected by a non-controlled component
                    // See _onSelectedItemsUpdated.
                    _this.resetFocus(focusIndex_1);
                }
            });
        }
    };
    BasePicker.prototype.componentWillUnmount = function () {
        _super.prototype.componentWillUnmount.call(this);
        if (this.currentPromise) {
            this.currentPromise = undefined;
        }
    };
    BasePicker.prototype.focus = function () {
        if (this.focusZone.current) {
            this.focusZone.current.focus();
        }
    };
    BasePicker.prototype.focusInput = function () {
        if (this.input.current) {
            this.input.current.focus();
        }
    };
    BasePicker.prototype.completeSuggestion = function () {
        if (this.suggestionStore.hasSelectedSuggestion() && this.input.current) {
            this.addItem(this.suggestionStore.currentSuggestion.item);
            this.updateValue('');
            this.input.current.clear();
        }
    };
    BasePicker.prototype.render = function () {
        var _a = this.state, suggestedDisplayValue = _a.suggestedDisplayValue, isFocused = _a.isFocused;
        var _b = this.props, className = _b.className, inputProps = _b.inputProps, disabled = _b.disabled, theme = _b.theme, styles = _b.styles;
        var selectedSuggestionAlertId = this.props.enableSelectedSuggestionAlert ? this._ariaMap.selectedSuggestionAlert : '';
        var suggestionsAvailable = this.state.suggestionsVisible ? this._ariaMap.suggestionList : '';
        // TODO
        // Clean this up by leaving only the first part after removing support for SASS.
        // Currently we can not remove the SASS styles from BasePicker class because it
        // might be used by consumers who created custom pickers from extending from
        // this base class and have not used the new 'styles' prop.
        // We check for 'styles' prop which is going to be injected by the 'styled' HOC
        // for every other already existing picker variant (PeoplePicker, TagPicker)
        // so that we can use the CSS-in-JS styles. If the check fails (ex: custom picker),
        // then we just use the old SASS styles instead.
        var classNames = styles
            ? getClassNames(styles, {
                theme: theme,
                className: className,
                isFocused: isFocused,
                disabled: disabled,
                inputClassName: inputProps && inputProps.className
            })
            : {
                root: Utilities_1.css('ms-BasePicker', className ? className : ''),
                text: Utilities_1.css('ms-BasePicker-text', legacyStyles.pickerText, this.state.isFocused && legacyStyles.inputFocused),
                itemsWrapper: legacyStyles.pickerItems,
                input: Utilities_1.css('ms-BasePicker-input', legacyStyles.pickerInput, inputProps && inputProps.className),
                screenReaderText: legacyStyles.screenReaderOnly
            };
        return (React.createElement("div", { ref: this.root, className: classNames.root, onKeyDown: this.onKeyDown, onBlur: this.onBlur },
            React.createElement(FocusZone_1.FocusZone, { componentRef: this.focusZone, direction: FocusZone_1.FocusZoneDirection.bidirectional, isInnerZoneKeystroke: this._isFocusZoneInnerKeystroke },
                this.getSuggestionsAlert(classNames.screenReaderText),
                React.createElement(index_1.SelectionZone, { selection: this.selection, selectionMode: index_1.SelectionMode.multiple },
                    React.createElement("div", { className: classNames.text },
                        React.createElement("span", { id: this._ariaMap.selectedItems, className: classNames.itemsWrapper, role: 'list' }, this.renderItems()),
                        this.canAddItems() && (React.createElement(index_2.Autofill, tslib_1.__assign({ spellCheck: false }, inputProps, { className: classNames.input, componentRef: this.input, onFocus: this.onInputFocus, onBlur: this.onInputBlur, onInputValueChange: this.onInputChange, suggestedDisplayValue: suggestedDisplayValue, "aria-activedescendant": this.getActiveDescendant(), "aria-expanded": !!this.state.suggestionsVisible, "aria-haspopup": "true", "aria-describedby": this._ariaMap.selectedItems, autoCapitalize: "off", autoComplete: "off", role: 'combobox', disabled: disabled, "aria-controls": suggestionsAvailable + " " + selectedSuggestionAlertId || undefined, "aria-owns": suggestionsAvailable || undefined, "aria-autocomplete": 'both', onInputChange: this.props.onInputChange })))))),
            this.renderSuggestions()));
    };
    BasePicker.prototype.canAddItems = function () {
        var items = this.state.items;
        var itemLimit = this.props.itemLimit;
        return itemLimit === undefined || items.length < itemLimit;
    };
    BasePicker.prototype.renderSuggestions = function () {
        var TypedSuggestions = this.SuggestionOfProperType;
        // TODO:
        // Move this styled component in a separate file and make it available to the public API.
        // This should be done after rewriting pickers to use a composition pattern instead of inheritance.
        var StyledTypedSuggestions = Utilities_1.styled(TypedSuggestions, Suggestions_styles_1.getStyles, undefined, { scope: 'Suggestions' });
        return this.state.suggestionsVisible && this.input ? (React.createElement(Callout_1.Callout, tslib_1.__assign({ isBeakVisible: false, gapSpace: 5, target: this.input.current ? this.input.current.inputElement : undefined, onDismiss: this.dismissSuggestions, directionalHint: Callout_1.DirectionalHint.bottomLeftEdge, directionalHintForRTL: Callout_1.DirectionalHint.bottomRightEdge }, this.props.pickerCalloutProps),
            React.createElement(StyledTypedSuggestions, tslib_1.__assign({ onRenderSuggestion: this.props.onRenderSuggestionsItem, onSuggestionClick: this.onSuggestionClick, onSuggestionRemove: this.onSuggestionRemove, suggestions: this.suggestionStore.getSuggestions(), componentRef: this.suggestionElement, onGetMoreResults: this.onGetMoreResults, moreSuggestionsAvailable: this.state.moreSuggestionsAvailable, isLoading: this.state.suggestionsLoading, isSearching: this.state.isSearching, isMostRecentlyUsedVisible: this.state.isMostRecentlyUsedVisible, isResultsFooterVisible: this.state.isResultsFooterVisible, refocusSuggestions: this.refocusSuggestions, removeSuggestionAriaLabel: this.props.removeButtonAriaLabel, suggestionsListId: this._ariaMap.suggestionList }, this.props.pickerSuggestionsProps)))) : null;
    };
    BasePicker.prototype.renderItems = function () {
        var _this = this;
        var _a = this.props, disabled = _a.disabled, removeButtonAriaLabel = _a.removeButtonAriaLabel;
        var onRenderItem = this.props.onRenderItem;
        var _b = this.state, items = _b.items, selectedIndices = _b.selectedIndices;
        return items.map(function (item, index) {
            return onRenderItem({
                item: item,
                index: index,
                key: item.key ? item.key : index,
                selected: selectedIndices.indexOf(index) !== -1,
                onRemoveItem: function () { return _this.removeItem(item, true); },
                disabled: disabled,
                onItemChange: _this.onItemChange,
                removeButtonAriaLabel: removeButtonAriaLabel
            });
        });
    };
    BasePicker.prototype.resetFocus = function (index) {
        var items = this.state.items;
        if (items.length && index >= 0) {
            var newEl = this.root.current &&
                this.root.current.querySelectorAll('[data-selection-index]')[Math.min(index, items.length - 1)];
            if (newEl && this.focusZone.current) {
                this.focusZone.current.focusElement(newEl);
            }
        }
        else if (!this.canAddItems()) {
            this.resetFocus(items.length - 1);
        }
        else {
            if (this.input.current) {
                this.input.current.focus();
            }
        }
    };
    BasePicker.prototype.onSuggestionSelect = function () {
        if (this.suggestionStore.currentSuggestion) {
            var currentValue = this.input.current ? this.input.current.value : '';
            var itemValue = this._getTextFromItem(this.suggestionStore.currentSuggestion.item, currentValue);
            this.setState({ suggestedDisplayValue: itemValue });
        }
    };
    BasePicker.prototype.onSelectionChange = function () {
        this.setState({
            selectedIndices: this.selection.getSelectedIndices()
        });
    };
    BasePicker.prototype.updateSuggestions = function (suggestions) {
        this.suggestionStore.updateSuggestions(suggestions, 0);
        this.forceUpdate();
    };
    BasePicker.prototype.onEmptyInputFocus = function () {
        var onEmptyInputFocus = this.props.onEmptyInputFocus;
        var suggestions = onEmptyInputFocus(this.state.items);
        this.updateSuggestionsList(suggestions);
    };
    BasePicker.prototype.updateValue = function (updatedValue) {
        this._onResolveSuggestions(updatedValue);
    };
    BasePicker.prototype.updateSuggestionsList = function (suggestions, updatedValue) {
        var _this = this;
        var suggestionsArray = suggestions;
        var suggestionsPromiseLike = suggestions;
        // Check to see if the returned value is an array, if it is then just pass it into the next function .
        // If the returned value is not an array then check to see if it's a promise or PromiseLike. If it is then resolve it asynchronously.
        if (Array.isArray(suggestionsArray)) {
            this._updateAndResolveValue(updatedValue, suggestionsArray);
        }
        else if (suggestionsPromiseLike && suggestionsPromiseLike.then) {
            this.setState({
                suggestionsLoading: true
            });
            // Clear suggestions
            this.suggestionStore.updateSuggestions([]);
            if (updatedValue !== undefined) {
                this.setState({
                    suggestionsVisible: this.input.current
                        ? this.input.current.value !== '' && this.input.current.inputElement === document.activeElement
                        : false
                });
            }
            else {
                this.setState({
                    suggestionsVisible: this.input.current ? this.input.current.inputElement === document.activeElement : false
                });
            }
            // Ensure that the promise will only use the callback if it was the most recent one.
            var promise_1 = (this.currentPromise = suggestionsPromiseLike);
            promise_1.then(function (newSuggestions) {
                if (promise_1 === _this.currentPromise) {
                    _this._updateAndResolveValue(updatedValue, newSuggestions);
                }
            });
        }
    };
    BasePicker.prototype.resolveNewValue = function (updatedValue, suggestions) {
        var _this = this;
        this.updateSuggestions(suggestions);
        var itemValue = undefined;
        if (this.suggestionStore.currentSuggestion) {
            itemValue = this._getTextFromItem(this.suggestionStore.currentSuggestion.item, updatedValue);
        }
        // Only set suggestionloading to false after there has been time for the new suggestions to flow
        // to the suggestions list. This is to ensure that the suggestions are available before aria-activedescendant
        // is set so that screen readers will read out the first selected option.
        this.setState({
            suggestedDisplayValue: itemValue,
            suggestionsVisible: this.input.current
                ? this.input.current.value !== '' && this.input.current.inputElement === document.activeElement
                : false
        }, function () { return _this.setState({ suggestionsLoading: false }); });
    };
    BasePicker.prototype.onChange = function (items) {
        if (this.props.onChange) {
            this.props.onChange(items);
        }
    };
    // This is protected because we may expect the backspace key to work differently in a different kind of picker.
    // This lets the subclass override it and provide it's own onBackspace. For an example see the BasePickerListBelow
    BasePicker.prototype.onBackspace = function (ev) {
        if ((this.state.items.length && !this.input.current) ||
            (this.input.current && (!this.input.current.isValueSelected && this.input.current.cursorLocation === 0))) {
            if (this.selection.getSelectedCount() > 0) {
                this.removeItems(this.selection.getSelection());
            }
            else {
                this.removeItem(this.state.items[this.state.items.length - 1]);
            }
        }
    };
    BasePicker.prototype.getActiveDescendant = function () {
        var currentIndex = this.suggestionStore.currentIndex;
        return currentIndex > -1 && !this.state.suggestionsLoading ? 'sug-' + currentIndex : undefined;
    };
    BasePicker.prototype.getSuggestionsAlert = function (suggestionAlertClassName) {
        if (suggestionAlertClassName === void 0) { suggestionAlertClassName = legacyStyles.screenReaderOnly; }
        var currentIndex = this.suggestionStore.currentIndex;
        if (this.props.enableSelectedSuggestionAlert) {
            var selectedSuggestion = currentIndex > -1 ? this.suggestionStore.getSuggestionAtIndex(this.suggestionStore.currentIndex) : undefined;
            var selectedSuggestionAlertText = selectedSuggestion ? selectedSuggestion.ariaLabel : undefined;
            return (React.createElement("div", { className: suggestionAlertClassName, role: "alert", id: this._ariaMap.selectedSuggestionAlert, "aria-live": "assertive" },
                selectedSuggestionAlertText,
                ' '));
        }
    };
    /**
     * Takes in the current updated value and either resolves it with the new suggestions
     * or if updated value is undefined then it clears out currently suggested items
     */
    BasePicker.prototype._updateAndResolveValue = function (updatedValue, newSuggestions) {
        if (updatedValue !== undefined) {
            this.resolveNewValue(updatedValue, newSuggestions);
        }
        else {
            this.suggestionStore.updateSuggestions(newSuggestions, -1);
            if (this.state.suggestionsLoading) {
                this.setState({
                    suggestionsLoading: false
                });
            }
        }
    };
    /**
     * Controls what happens whenever there is an action that impacts the selected items.
     * If selectedItems is provided as a property then this will act as a controlled component and it will not update it's own state.
     */
    BasePicker.prototype._updateSelectedItems = function (items, focusIndex) {
        var _this = this;
        if (this.props.selectedItems) {
            // If the component is a controlled component then the controlling component will need to add or remove the items.
            this.onChange(items);
        }
        else {
            this.setState({ items: items }, function () {
                _this._onSelectedItemsUpdated(items, focusIndex);
            });
        }
    };
    BasePicker.prototype._onSelectedItemsUpdated = function (items, focusIndex) {
        this.resetFocus(focusIndex);
        this.onChange(items);
    };
    BasePicker.prototype._onResolveSuggestions = function (updatedValue) {
        var suggestions = this.props.onResolveSuggestions(updatedValue, this.state.items);
        if (suggestions !== null) {
            this.updateSuggestionsList(suggestions, updatedValue);
        }
    };
    BasePicker.prototype._onValidateInput = function () {
        if (this.props.onValidateInput &&
            this.input.current &&
            this.props.onValidateInput(this.input.current.value) !== BasePicker_types_1.ValidationState.invalid &&
            this.props.createGenericItem) {
            var itemToConvert = this.props.createGenericItem(this.input.current.value, this.props.onValidateInput(this.input.current.value));
            this.suggestionStore.createGenericSuggestion(itemToConvert);
            this.completeSuggestion();
        }
    };
    BasePicker.prototype._getTextFromItem = function (item, currentValue) {
        if (this.props.getTextFromItem) {
            return this.props.getTextFromItem(item, currentValue);
        }
        else {
            return '';
        }
    };
    return BasePicker;
}(Utilities_1.BaseComponent));
exports.BasePicker = BasePicker;
var BasePickerListBelow = /** @class */ (function (_super) {
    tslib_1.__extends(BasePickerListBelow, _super);
    function BasePickerListBelow() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    BasePickerListBelow.prototype.render = function () {
        var _a = this.state, suggestedDisplayValue = _a.suggestedDisplayValue, isFocused = _a.isFocused;
        var _b = this.props, className = _b.className, inputProps = _b.inputProps, disabled = _b.disabled, theme = _b.theme, styles = _b.styles;
        var selectedSuggestionAlertId = this.props.enableSelectedSuggestionAlert
            ? this._ariaMap.selectedSuggestionAlert
            : '';
        var suggestionsAvailable = this.state.suggestionsVisible ? this._ariaMap.suggestionList : '';
        // TODO
        // Clean this up by leaving only the first part after removing support for SASS.
        // Currently we can not remove the SASS styles from BasePicker class because it
        // might be used by consumers who created custom pickers from extending from
        // this base class and have not used the new 'styles' prop.
        // We check for 'styles' prop which is going to be injected by the 'styled' HOC
        // for every other already existing picker variant (PeoplePicker, TagPicker)
        // so that we can use the CSS-in-JS styles. If the check fails (ex: custom picker),
        // then we just use the old SASS styles instead.
        var classNames = styles
            ? getClassNames(styles, {
                theme: theme,
                className: className,
                isFocused: isFocused,
                inputClassName: inputProps && inputProps.className
            })
            : {
                root: Utilities_1.css('ms-BasePicker', className ? className : ''),
                text: Utilities_1.css('ms-BasePicker-text', legacyStyles.pickerText, this.state.isFocused && legacyStyles.inputFocused),
                input: Utilities_1.css('ms-BasePicker-input', legacyStyles.pickerInput, inputProps && inputProps.className),
                screenReaderText: legacyStyles.screenReaderOnly
            };
        return (React.createElement("div", { ref: this.root, onBlur: this.onBlur },
            React.createElement("div", { className: classNames.root, onKeyDown: this.onKeyDown },
                this.getSuggestionsAlert(classNames.screenReaderText),
                React.createElement("div", { className: classNames.text },
                    React.createElement(index_2.Autofill, tslib_1.__assign({}, inputProps, { className: classNames.input, componentRef: this.input, onFocus: this.onInputFocus, onBlur: this.onInputBlur, onInputValueChange: this.onInputChange, suggestedDisplayValue: suggestedDisplayValue, "aria-activedescendant": this.getActiveDescendant(), "aria-expanded": !!this.state.suggestionsVisible, "aria-haspopup": "true", autoCapitalize: "off", autoComplete: "off", role: "combobox", disabled: disabled, "aria-controls": suggestionsAvailable + " " + selectedSuggestionAlertId || undefined, "aria-owns": suggestionsAvailable || undefined, onInputChange: this.props.onInputChange })))),
            this.renderSuggestions(),
            React.createElement(index_1.SelectionZone, { selection: this.selection, selectionMode: index_1.SelectionMode.single },
                React.createElement(FocusZone_1.FocusZone, { componentRef: this.focusZone, className: "ms-BasePicker-selectedItems" // just a className hook without any styles applied to it.
                    , isCircularNavigation: true, direction: FocusZone_1.FocusZoneDirection.bidirectional, isInnerZoneKeystroke: this._isFocusZoneInnerKeystroke, id: this._ariaMap.selectedItems }, this.renderItems()))));
    };
    BasePickerListBelow.prototype.onBackspace = function (ev) {
        // override the existing backspace method to not do anything because the list items appear below.
    };
    return BasePickerListBelow;
}(BasePicker));
exports.BasePickerListBelow = BasePickerListBelow;
//# sourceMappingURL=BasePicker.js.map