office-ui-fabric-react
Version:
Reusable React components for building experiences for Office 365.
793 lines • 40.7 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var React = require("react");
var Utilities_1 = require("../../Utilities");
var Callout_1 = require("../../Callout");
var Checkbox_1 = require("../../Checkbox");
var Button_1 = require("../../Button");
var DirectionalHint_1 = require("../../common/DirectionalHint");
var Dropdown_types_1 = require("./Dropdown.types");
var DropdownSizePosCache_1 = require("./utilities/DropdownSizePosCache");
var FocusZone_1 = require("../../FocusZone");
var Icon_1 = require("../../Icon");
var Label_1 = require("../../Label");
var KeytipData_1 = require("../../KeytipData");
var Panel_1 = require("../../Panel");
var withResponsiveMode_1 = require("../../utilities/decorators/withResponsiveMode");
var index_1 = require("../../utilities/selectableOption/index");
var getClassNames = Utilities_1.classNamesFunction();
var DropdownBase = /** @class */ (function (_super) {
tslib_1.__extends(DropdownBase, _super);
function DropdownBase(props) {
var _this = _super.call(this, props) || this;
_this._host = React.createRef();
_this._focusZone = React.createRef();
_this._dropDown = React.createRef();
_this._scrollIdleDelay = 250 /* ms */;
_this._sizePosCache = new DropdownSizePosCache_1.DropdownSizePosCache();
_this._requestAnimationFrame = Utilities_1.safeRequestAnimationFrame(_this);
_this._onChange = function (event, options, index, checked, multiSelect) {
var _a = _this.props, onChange = _a.onChange, onChanged = _a.onChanged;
if (onChange) {
// for single-select, option passed in will always be selected.
// for multi-select, flip the checked value
var changedOpt = multiSelect ? tslib_1.__assign({}, options[index], { selected: !checked }) : options[index];
onChange(tslib_1.__assign({}, event, { target: _this._dropDown.current }), changedOpt, index);
}
if (onChanged) {
// for single-select, option passed in will always be selected.
// for multi-select, flip the checked value
var changedOpt = multiSelect ? tslib_1.__assign({}, options[index], { selected: !checked }) : options[index];
onChanged(changedOpt, index);
}
};
/** Render text in dropdown input */
_this._onRenderTitle = function (items) {
var _a = _this.props.multiSelectDelimiter, multiSelectDelimiter = _a === void 0 ? ', ' : _a;
var displayTxt = items.map(function (i) { return i.text; }).join(multiSelectDelimiter);
return React.createElement("span", null, displayTxt);
};
/** Render placeholder text in dropdown input */
_this._onRenderPlaceholder = function (props) {
if (!_this._placeholder) {
return null;
}
return React.createElement("span", null, _this._placeholder);
};
/** Render Callout or Panel container and pass in list */
_this._onRenderContainer = function (props) {
var calloutProps = props.calloutProps, panelProps = props.panelProps;
var _a = _this.props, responsiveMode = _a.responsiveMode, dropdownWidth = _a.dropdownWidth;
var isSmall = responsiveMode <= withResponsiveMode_1.ResponsiveMode.medium;
var panelStyles = _this._classNames.subComponentStyles
? _this._classNames.subComponentStyles.panel
: undefined;
return isSmall ? (React.createElement(Panel_1.Panel, tslib_1.__assign({ isOpen: true, isLightDismiss: true, onDismiss: _this._onDismiss, hasCloseButton: false, styles: panelStyles }, panelProps), _this._renderFocusableList(props))) : (React.createElement(Callout_1.Callout, tslib_1.__assign({ isBeakVisible: false, gapSpace: 0, doNotLayer: false, directionalHintFixed: false, directionalHint: DirectionalHint_1.DirectionalHint.bottomLeftEdge }, calloutProps, { className: _this._classNames.callout, target: _this._dropDown.current, onDismiss: _this._onDismiss, onScroll: _this._onScroll, onPositioned: _this._onPositioned, calloutWidth: dropdownWidth || (_this._dropDown.current ? _this._dropDown.current.clientWidth : 0) }), _this._renderFocusableList(props)));
};
/** Render Caret Down Icon */
_this._onRenderCaretDown = function (props) {
return React.createElement(Icon_1.Icon, { className: _this._classNames.caretDown, iconName: "ChevronDown", "aria-hidden": true });
};
/** Render List of items */
_this._onRenderList = function (props) {
var _a = props.onRenderItem, onRenderItem = _a === void 0 ? _this._onRenderItem : _a;
return React.createElement(React.Fragment, null, props.options.map(function (item, index) { return onRenderItem(tslib_1.__assign({}, item, { index: index }), _this._onRenderItem); }));
};
_this._onRenderItem = function (item) {
switch (item.itemType) {
case index_1.SelectableOptionMenuItemType.Divider:
return _this._renderSeparator(item);
case index_1.SelectableOptionMenuItemType.Header:
return _this._renderHeader(item);
default:
return _this._renderOption(item);
}
};
_this._renderOption = function (item) {
var _a = _this.props.onRenderOption, onRenderOption = _a === void 0 ? _this._onRenderOption : _a;
var _b = _this.state.selectedIndices, selectedIndices = _b === void 0 ? [] : _b;
var id = _this._id;
var isItemSelected = item.index !== undefined && selectedIndices ? selectedIndices.indexOf(item.index) > -1 : false;
// select the right className based on the combination of selected/disabled
var itemClassName = item.hidden // predicate: item hidden
? _this._classNames.dropdownItemHidden
: isItemSelected && item.disabled === true // predicate: both selected and disabled
? _this._classNames.dropdownItemSelectedAndDisabled
: isItemSelected // predicate: selected only
? _this._classNames.dropdownItemSelected
: item.disabled === true // predicate: disabled only
? _this._classNames.dropdownItemDisabled
: _this._classNames.dropdownItem;
var _c = item.title, title = _c === void 0 ? item.text : _c;
return !_this.props.multiSelect ? (React.createElement(Button_1.CommandButton, { id: id + '-list' + item.index, key: item.key, "data-index": item.index, "data-is-focusable": !item.disabled, disabled: item.disabled, className: itemClassName, onClick: _this._onItemClick(item), onMouseEnter: _this._onItemMouseEnter.bind(_this, item), onMouseLeave: _this._onMouseItemLeave.bind(_this, item), onMouseMove: _this._onItemMouseMove.bind(_this, item), role: "option", "aria-selected": isItemSelected ? 'true' : 'false', ariaLabel: item.ariaLabel, title: title }, onRenderOption(item, _this._onRenderOption))) : (React.createElement(Checkbox_1.Checkbox, { id: id + '-list' + item.index, key: item.key, "data-index": item.index, "data-is-focusable": !item.disabled, disabled: item.disabled, onChange: _this._onItemClick(item), inputProps: {
onMouseEnter: _this._onItemMouseEnter.bind(_this, item),
onMouseLeave: _this._onMouseItemLeave.bind(_this, item),
onMouseMove: _this._onItemMouseMove.bind(_this, item)
}, label: item.text, title: item.title ? item.title : item.text, onRenderLabel: _this._onRenderItemLabel.bind(_this, item), className: itemClassName, role: "option", "aria-selected": isItemSelected ? 'true' : 'false', checked: isItemSelected }));
};
/** Render content of item (i.e. text/icon inside of button) */
_this._onRenderOption = function (item) {
return React.createElement("span", { className: _this._classNames.dropdownOptionText }, item.text);
};
/** Render custom label for drop down item */
_this._onRenderItemLabel = function (item) {
var _a = _this.props.onRenderOption, onRenderOption = _a === void 0 ? _this._onRenderOption : _a;
return onRenderOption(item, _this._onRenderOption);
};
_this._onPositioned = function (positions) {
if (_this._focusZone.current) {
// Focusing an element can trigger a reflow. Making this wait until there is an animation
// frame can improve perf significantly.
_this._requestAnimationFrame(function () {
var selectedIndices = _this.state.selectedIndices;
if (_this._focusZone.current) {
if (selectedIndices && selectedIndices[0] && !_this.props.options[selectedIndices[0]].disabled) {
var element = Utilities_1.getDocument().querySelector("#" + _this._id + "-list" + selectedIndices[0]);
_this._focusZone.current.focusElement(element);
}
else {
_this._focusZone.current.focus();
}
}
});
}
if (!_this.state.calloutRenderEdge || _this.state.calloutRenderEdge !== positions.targetEdge) {
_this.setState({
calloutRenderEdge: positions.targetEdge
});
}
};
_this._onItemClick = function (item) {
return function (event) {
if (!item.disabled) {
_this.setSelectedIndex(event, item.index);
if (!_this.props.multiSelect) {
// only close the callout when it's in single-select mode
_this.setState({
isOpen: false
});
}
}
};
};
/**
* Scroll handler for the callout to make sure the mouse events
* for updating focus are not interacting during scroll
*/
_this._onScroll = function () {
if (!_this._isScrollIdle && _this._scrollIdleTimeoutId !== undefined) {
clearTimeout(_this._scrollIdleTimeoutId);
_this._scrollIdleTimeoutId = undefined;
}
else {
_this._isScrollIdle = false;
}
_this._scrollIdleTimeoutId = setTimeout(function () {
_this._isScrollIdle = true;
}, _this._scrollIdleDelay);
};
_this._onMouseItemLeave = function (item, ev) {
if (_this._shouldIgnoreMouseEvent()) {
return;
}
/**
* IE11 focus() method forces parents to scroll to top of element.
* Edge and IE expose a setActive() function for focusable divs that
* sets the page focus but does not scroll the parent element.
*/
if (_this._host.current) {
if (_this._host.current.setActive) {
try {
_this._host.current.setActive();
}
catch (e) {
/* no-op */
}
}
else {
_this._host.current.focus();
}
}
};
_this._onDismiss = function () {
_this.setState({ isOpen: false });
if (_this._dropDown.current) {
_this._dropDown.current.focus();
}
};
_this._onDropdownBlur = function (ev) {
// If Dropdown disabled do not proceed with this logic.
var disabled = _this._isDisabled();
if (disabled) {
return;
}
// hasFocus tracks whether the root element has focus so always update the state.
_this.setState({ hasFocus: false });
if (_this.state.isOpen) {
// Do not onBlur when the callout is opened
return;
}
if (_this.props.onBlur) {
_this.props.onBlur(ev);
}
};
_this._onDropdownKeyDown = function (ev) {
// If Dropdown disabled do not process any keyboard events.
var disabled = _this._isDisabled();
if (disabled) {
return;
}
// Take note if we are processing an alt (option) or meta (command) keydown.
// See comment in _shouldHandleKeyUp for reasoning.
_this._lastKeyDownWasAltOrMeta = _this._isAltOrMeta(ev);
if (_this.props.onKeyDown) {
_this.props.onKeyDown(ev);
if (ev.defaultPrevented) {
return;
}
}
var newIndex;
var selectedIndex = _this.state.selectedIndices.length ? _this.state.selectedIndices[0] : -1;
var containsExpandCollapseModifier = ev.altKey || ev.metaKey;
var isOpen = _this.state.isOpen;
switch (ev.which) {
case Utilities_1.KeyCodes.enter:
_this.setState({
isOpen: !isOpen
});
break;
case Utilities_1.KeyCodes.escape:
if (!isOpen) {
return;
}
_this.setState({
isOpen: false
});
break;
case Utilities_1.KeyCodes.up:
if (containsExpandCollapseModifier) {
if (isOpen) {
_this.setState({ isOpen: false });
break;
}
return;
}
if (_this.props.multiSelect) {
_this.setState({ isOpen: true });
}
else if (!_this._isDisabled()) {
newIndex = _this._moveIndex(ev, -1, selectedIndex - 1, selectedIndex);
}
break;
case Utilities_1.KeyCodes.down:
if (containsExpandCollapseModifier) {
ev.stopPropagation();
ev.preventDefault();
}
if ((containsExpandCollapseModifier && !isOpen) || _this.props.multiSelect) {
_this.setState({ isOpen: true });
}
else if (!_this._isDisabled()) {
newIndex = _this._moveIndex(ev, 1, selectedIndex + 1, selectedIndex);
}
break;
case Utilities_1.KeyCodes.home:
if (!_this.props.multiSelect) {
newIndex = _this._moveIndex(ev, 1, 0, selectedIndex);
}
break;
case Utilities_1.KeyCodes.end:
if (!_this.props.multiSelect) {
newIndex = _this._moveIndex(ev, -1, _this.props.options.length - 1, selectedIndex);
}
break;
case Utilities_1.KeyCodes.space:
// event handled in _onDropdownKeyUp
break;
default:
return;
}
if (newIndex !== selectedIndex) {
ev.stopPropagation();
ev.preventDefault();
}
};
_this._onDropdownKeyUp = function (ev) {
// If Dropdown disabled do not process any keyboard events.
var disabled = _this._isDisabled();
if (disabled) {
return;
}
var shouldHandleKey = _this._shouldHandleKeyUp(ev);
var isOpen = _this.state.isOpen;
if (_this.props.onKeyUp) {
_this.props.onKeyUp(ev);
if (ev.preventDefault) {
return;
}
}
switch (ev.which) {
case Utilities_1.KeyCodes.space:
_this.setState({
isOpen: !isOpen
});
break;
default:
if (shouldHandleKey && isOpen) {
_this.setState({ isOpen: false });
}
return;
}
ev.stopPropagation();
ev.preventDefault();
};
_this._onZoneKeyDown = function (ev) {
var elementToFocus;
// Take note if we are processing an alt (option) or meta (command) keydown.
// See comment in _shouldHandleKeyUp for reasoning.
_this._lastKeyDownWasAltOrMeta = _this._isAltOrMeta(ev);
var containsExpandCollapseModifier = ev.altKey || ev.metaKey;
switch (ev.which) {
case Utilities_1.KeyCodes.up:
if (containsExpandCollapseModifier) {
_this.setState({ isOpen: false });
}
else {
if (_this._host.current) {
elementToFocus = Utilities_1.getLastFocusable(_this._host.current, _this._host.current.lastChild, true);
}
}
break;
// All directional keystrokes should be canceled when the zone is rendered.
// This avoids the body scroll from reacting and thus dismissing the dropdown.
case Utilities_1.KeyCodes.home:
case Utilities_1.KeyCodes.end:
case Utilities_1.KeyCodes.pageUp:
case Utilities_1.KeyCodes.pageDown:
break;
case Utilities_1.KeyCodes.down:
if (!containsExpandCollapseModifier && _this._host.current) {
elementToFocus = Utilities_1.getFirstFocusable(_this._host.current, _this._host.current.firstChild, true);
}
break;
case Utilities_1.KeyCodes.escape:
_this.setState({ isOpen: false });
break;
case Utilities_1.KeyCodes.tab:
_this.setState({ isOpen: false });
return;
default:
return;
}
if (elementToFocus) {
elementToFocus.focus();
}
ev.stopPropagation();
ev.preventDefault();
};
_this._onZoneKeyUp = function (ev) {
var shouldHandleKey = _this._shouldHandleKeyUp(ev);
if (shouldHandleKey && _this.state.isOpen) {
_this.setState({ isOpen: false });
ev.preventDefault();
}
};
_this._onDropdownClick = function (ev) {
if (_this.props.onClick) {
_this.props.onClick(ev);
if (ev.preventDefault) {
return;
}
}
var isOpen = _this.state.isOpen;
var disabled = _this._isDisabled();
if (!disabled) {
_this.setState({
isOpen: !isOpen
});
}
};
_this._onFocus = function (ev) {
var _a = _this.state, isOpen = _a.isOpen, selectedIndices = _a.selectedIndices, hasFocus = _a.hasFocus;
var _b = _this.props, multiSelect = _b.multiSelect, openOnKeyboardFocus = _b.openOnKeyboardFocus;
var disabled = _this._isDisabled();
if (!disabled) {
if (!isOpen && selectedIndices.length === 0 && !multiSelect) {
// Per aria
_this._moveIndex(ev, 1, 0, -1);
}
if (_this.props.onFocus) {
_this.props.onFocus(ev);
}
var state = { hasFocus: true };
if (openOnKeyboardFocus && !hasFocus) {
state.isOpen = true;
}
_this.setState(state);
}
};
/**
* Because the isDisabled prop is deprecated, we have had to repeat this logic all over the place.
* This helper method avoids all the repetition.
*/
_this._isDisabled = function () {
var disabled = _this.props.disabled;
var isDisabled = _this.props.isDisabled;
// Remove this deprecation workaround at 1.0.0
if (isDisabled !== undefined) {
disabled = isDisabled;
}
return disabled;
};
_this._onRenderLabel = function (props) {
var id = _this._id;
var label = props.label, required = props.required, disabled = props.disabled;
var labelStyles = _this._classNames.subComponentStyles
? _this._classNames.subComponentStyles.label
: undefined;
return label ? (React.createElement(Label_1.Label, { className: _this._classNames.label, id: id + '-label', htmlFor: id, required: required, styles: labelStyles, disabled: disabled }, label)) : null;
};
Utilities_1.initializeComponentRef(_this);
if (process.env.NODE_ENV !== 'production') {
Utilities_1.warnDeprecations('Dropdown', props, {
isDisabled: 'disabled',
onChanged: 'onChange',
placeHolder: 'placeholder',
onRenderPlaceHolder: 'onRenderPlaceholder'
});
Utilities_1.warnMutuallyExclusive('Dropdown', props, {
defaultSelectedKey: 'selectedKey',
defaultSelectedKeys: 'selectedKeys',
selectedKeys: 'selectedKey',
multiSelect: 'defaultSelectedKey',
selectedKey: 'multiSelect'
});
}
_this._id = props.id || Utilities_1.getId('Dropdown');
_this._isScrollIdle = true;
var selectedIndices;
if (_this.props.multiSelect) {
var selectedKeys = props.defaultSelectedKeys !== undefined ? props.defaultSelectedKeys : props.selectedKeys;
selectedIndices = _this._getSelectedIndexes(props.options, selectedKeys);
}
else {
var selectedKey = props.defaultSelectedKey !== undefined ? props.defaultSelectedKey : props.selectedKey;
selectedIndices = _this._getSelectedIndexes(props.options, selectedKey);
_this._sizePosCache.updateOptions(props.options);
}
_this.state = {
isOpen: false,
selectedIndices: selectedIndices,
hasFocus: false,
calloutRenderEdge: undefined
};
return _this;
}
Object.defineProperty(DropdownBase.prototype, "selectedOptions", {
/**
* All selected options
*/
get: function () {
var options = this.props.options;
var selectedIndices = this.state.selectedIndices;
return index_1.getAllSelectedOptions(options, selectedIndices);
},
enumerable: true,
configurable: true
});
DropdownBase.prototype.componentWillUnmount = function () {
clearTimeout(this._scrollIdleTimeoutId);
};
// tslint:disable-next-line function-name
DropdownBase.prototype.UNSAFE_componentWillReceiveProps = function (newProps) {
// In controlled component usage where selectedKey is provided, update the selectedIndex
// state if the key or options change.
var selectedKeyProp;
// this does a shallow compare (assumes options are pure), for the purposes of determining whether
// defaultSelectedKey/defaultSelectedKeys are respected.
var didOptionsChange = newProps.options !== this.props.options;
if (newProps.multiSelect) {
if (didOptionsChange && newProps.defaultSelectedKeys !== undefined) {
selectedKeyProp = 'defaultSelectedKeys';
}
else {
selectedKeyProp = 'selectedKeys';
}
}
else {
if (didOptionsChange && newProps.defaultSelectedKey !== undefined) {
selectedKeyProp = 'defaultSelectedKey';
}
else {
selectedKeyProp = 'selectedKey';
}
}
if (newProps[selectedKeyProp] !== undefined && (newProps[selectedKeyProp] !== this.props[selectedKeyProp] || didOptionsChange)) {
this.setState({
selectedIndices: this._getSelectedIndexes(newProps.options, newProps[selectedKeyProp])
});
}
if (newProps.options !== this.props.options && // preexisting code assumes purity of the options...
!newProps.multiSelect // only relevant in single selection
) {
this._sizePosCache.updateOptions(newProps.options);
}
};
DropdownBase.prototype.componentDidUpdate = function (prevProps, prevState) {
if (prevState.isOpen === true && this.state.isOpen === false) {
this._gotMouseMove = false;
if (this._dropDown.current) {
this._dropDown.current.focus();
}
if (this.props.onDismiss) {
this.props.onDismiss();
}
}
};
DropdownBase.prototype.render = function () {
var _this = this;
var id = this._id;
var props = this.props;
var className = props.className, label = props.label, options = props.options, ariaLabel = props.ariaLabel, required = props.required, errorMessage = props.errorMessage, multiSelect = props.multiSelect, keytipProps = props.keytipProps, propStyles = props.styles, theme = props.theme, panelProps = props.panelProps, calloutProps = props.calloutProps, _a = props.onRenderTitle, onRenderTitle = _a === void 0 ? this._onRenderTitle : _a, _b = props.onRenderContainer, onRenderContainer = _b === void 0 ? this._onRenderContainer : _b, _c = props.onRenderCaretDown, onRenderCaretDown = _c === void 0 ? this._onRenderCaretDown : _c, _d = props.onRenderLabel, onRenderLabel = _d === void 0 ? this._onRenderLabel : _d;
var _e = this.state, isOpen = _e.isOpen, selectedIndices = _e.selectedIndices, hasFocus = _e.hasFocus, calloutRenderEdge = _e.calloutRenderEdge;
var onRenderPlaceholder = props.onRenderPlaceholder || props.onRenderPlaceHolder || this._onRenderPlaceholder;
var selectedOptions = index_1.getAllSelectedOptions(options, selectedIndices);
var divProps = Utilities_1.getNativeProps(props, Utilities_1.divProperties);
var disabled = this._isDisabled();
var optionId = id + '-option';
var ariaAttrs = multiSelect || disabled
? {
role: undefined,
ariaActiveDescendant: undefined,
childRole: undefined,
ariaSetSize: undefined,
ariaPosInSet: undefined,
ariaSelected: undefined
}
: // single select
{
role: 'listbox',
ariaActiveDescendant: isOpen && selectedIndices.length === 1 && selectedIndices[0] >= 0 ? this._id + '-list' + selectedIndices[0] : optionId,
childRole: 'option',
ariaSetSize: this._sizePosCache.optionSetSize,
ariaPosInSet: this._sizePosCache.positionInSet(selectedIndices[0]),
ariaSelected: selectedIndices[0] === undefined ? undefined : true
};
this._classNames = getClassNames(propStyles, {
theme: theme,
className: className,
hasError: !!(errorMessage && errorMessage.length > 0),
hasLabel: !!label,
isOpen: isOpen,
required: required,
disabled: disabled,
isRenderingPlaceholder: !selectedOptions.length,
panelClassName: !!panelProps ? panelProps.className : undefined,
calloutClassName: !!calloutProps ? calloutProps.className : undefined,
calloutRenderEdge: calloutRenderEdge
});
return (React.createElement("div", { className: this._classNames.root },
onRenderLabel(this.props, this._onRenderLabel),
React.createElement(KeytipData_1.KeytipData, { keytipProps: keytipProps, disabled: disabled }, function (keytipAttributes) { return (React.createElement("div", tslib_1.__assign({}, keytipAttributes, { "data-is-focusable": !disabled, ref: _this._dropDown, id: id, tabIndex: disabled ? -1 : 0, "aria-expanded": isOpen ? 'true' : 'false', role: ariaAttrs.role, "aria-label": ariaLabel, "aria-labelledby": label && !ariaLabel ? id + '-label' : undefined, "aria-describedby": Utilities_1.mergeAriaAttributeValues(optionId, keytipAttributes['aria-describedby']), "aria-activedescendant": isOpen ? ariaAttrs.ariaActiveDescendant : undefined, "aria-required": required, "aria-disabled": disabled, "aria-owns": isOpen ? id + '-list' : undefined }, divProps, { className: _this._classNames.dropdown, onBlur: _this._onDropdownBlur, onKeyDown: _this._onDropdownKeyDown, onKeyUp: _this._onDropdownKeyUp, onClick: _this._onDropdownClick, onFocus: _this._onFocus }),
React.createElement("span", { id: optionId, className: _this._classNames.title, "aria-atomic": true, role: ariaAttrs.childRole, "aria-live": !hasFocus || disabled || multiSelect || isOpen ? 'off' : 'assertive', "aria-label": selectedOptions.length ? selectedOptions[0].text : _this._placeholder, "aria-setsize": ariaAttrs.ariaSetSize, "aria-posinset": ariaAttrs.ariaPosInSet, "aria-selected": ariaAttrs.ariaSelected }, // If option is selected render title, otherwise render the placeholder text
selectedOptions.length
? onRenderTitle(selectedOptions, _this._onRenderTitle)
: onRenderPlaceholder(props, _this._onRenderPlaceholder)),
React.createElement("span", { className: _this._classNames.caretDownWrapper }, onRenderCaretDown(props, _this._onRenderCaretDown)))); }),
isOpen && onRenderContainer(props, this._onRenderContainer),
errorMessage && errorMessage.length > 0 && React.createElement("div", { className: this._classNames.errorMessage }, errorMessage)));
};
DropdownBase.prototype.focus = function (shouldOpenOnFocus) {
if (this._dropDown.current) {
this._dropDown.current.focus();
if (shouldOpenOnFocus) {
this.setState({
isOpen: true
});
}
}
};
DropdownBase.prototype.setSelectedIndex = function (event, index) {
var _this = this;
var _a = this.props, options = _a.options, selectedKey = _a.selectedKey, selectedKeys = _a.selectedKeys, multiSelect = _a.multiSelect, notifyOnReselect = _a.notifyOnReselect;
var _b = this.state.selectedIndices, selectedIndices = _b === void 0 ? [] : _b;
var checked = selectedIndices ? selectedIndices.indexOf(index) > -1 : false;
var newIndexes = [];
index = Math.max(0, Math.min(options.length - 1, index));
// If this is a controlled component then no state change should take place.
if (selectedKey !== undefined || selectedKeys !== undefined) {
this._onChange(event, options, index, checked, multiSelect);
return;
}
if (!multiSelect && !notifyOnReselect && index === selectedIndices[0]) {
return;
}
else if (multiSelect) {
newIndexes = selectedIndices ? this._copyArray(selectedIndices) : [];
if (checked) {
var position = newIndexes.indexOf(index);
if (position > -1) {
// unchecked the current one
newIndexes.splice(position, 1);
}
}
else {
// add the new selected index into the existing one
newIndexes.push(index);
}
}
else {
// Set the selected option if this is an uncontrolled component
newIndexes = [index];
}
event.persist();
// Call onChange after state is updated
this.setState({
selectedIndices: newIndexes
}, function () {
_this._onChange(event, options, index, checked, multiSelect);
});
};
Object.defineProperty(DropdownBase.prototype, "_placeholder", {
/** Get either props.placeholder (new name) or props.placeHolder (old name) */
get: function () {
return this.props.placeholder || this.props.placeHolder;
},
enumerable: true,
configurable: true
});
DropdownBase.prototype._copyArray = function (array) {
var newArray = [];
for (var _i = 0, array_1 = array; _i < array_1.length; _i++) {
var element = array_1[_i];
newArray.push(element);
}
return newArray;
};
/**
* Finds the next valid Dropdown option and sets the selected index to it.
* @param stepValue - Value of how many items the function should traverse. Should be -1 or 1.
* @param index - Index of where the search should start
* @param selectedIndex - The selectedIndex Dropdown's state
* @returns The next valid dropdown option's index
*/
DropdownBase.prototype._moveIndex = function (event, stepValue, index, selectedIndex) {
var options = this.props.options;
// Return selectedIndex if nothing has changed or options is empty
if (selectedIndex === index || options.length === 0) {
return selectedIndex;
}
// Set starting index to 0 if index is < 0
if (index < 0) {
index = 0;
}
// Set starting index to last option index if greater than options.length
if (index >= options.length) {
index = options.length - 1;
}
var stepCounter = 0;
// If current index is a header or divider, or disabled, increment by step
while (options[index].itemType === Dropdown_types_1.DropdownMenuItemType.Header ||
options[index].itemType === Dropdown_types_1.DropdownMenuItemType.Divider ||
options[index].disabled) {
// If stepCounter exceeds length of options, then return selectedIndex (-1)
if (stepCounter >= options.length) {
return selectedIndex;
}
// If index + stepValue is out of bounds, wrap around
if (index + stepValue < 0) {
index = options.length;
}
else if (index + stepValue >= options.length) {
index = -1;
}
index = index + stepValue;
stepCounter++;
}
this.setSelectedIndex(event, index);
return index;
};
/** Wrap item list in a FocusZone */
DropdownBase.prototype._renderFocusableList = function (props) {
var _a = props.onRenderList, onRenderList = _a === void 0 ? this._onRenderList : _a, label = props.label, ariaLabel = props.ariaLabel;
var id = this._id;
return (React.createElement("div", { className: this._classNames.dropdownItemsWrapper, onKeyDown: this._onZoneKeyDown, onKeyUp: this._onZoneKeyUp, ref: this._host, tabIndex: 0 },
React.createElement(FocusZone_1.FocusZone, { ref: this._focusZone, direction: FocusZone_1.FocusZoneDirection.vertical, id: id + '-list', className: this._classNames.dropdownItems, "aria-label": ariaLabel, "aria-labelledby": label && !ariaLabel ? id + '-label' : undefined, role: "listbox" }, onRenderList(props, this._onRenderList))));
};
DropdownBase.prototype._renderSeparator = function (item) {
var index = item.index, key = item.key;
if (index > 0) {
return React.createElement("div", { role: "separator", key: key, className: this._classNames.dropdownDivider });
}
return null;
};
DropdownBase.prototype._renderHeader = function (item) {
var _a = this.props.onRenderOption, onRenderOption = _a === void 0 ? this._onRenderOption : _a;
var key = item.key;
return (React.createElement("div", { key: key, className: this._classNames.dropdownItemHeader }, onRenderOption(item, this._onRenderOption)));
};
DropdownBase.prototype._onItemMouseEnter = function (item, ev) {
if (this._shouldIgnoreMouseEvent()) {
return;
}
var targetElement = ev.currentTarget;
targetElement.focus();
};
DropdownBase.prototype._onItemMouseMove = function (item, ev) {
var targetElement = ev.currentTarget;
this._gotMouseMove = true;
if (!this._isScrollIdle || document.activeElement === targetElement) {
return;
}
targetElement.focus();
};
DropdownBase.prototype._shouldIgnoreMouseEvent = function () {
return !this._isScrollIdle || !this._gotMouseMove;
};
/** Get all selected indexes for multi-select mode */
DropdownBase.prototype._getSelectedIndexes = function (options, selectedKey) {
if (selectedKey === undefined) {
if (this.props.multiSelect) {
return this._getAllSelectedIndices(options);
}
var selectedIndex = this._getSelectedIndex(options, null);
return selectedIndex !== -1 ? [selectedIndex] : [];
}
else if (!Array.isArray(selectedKey)) {
var selectedIndex = this._getSelectedIndex(options, selectedKey);
return selectedIndex !== -1 ? [selectedIndex] : [];
}
var selectedIndices = [];
for (var _i = 0, selectedKey_1 = selectedKey; _i < selectedKey_1.length; _i++) {
var key = selectedKey_1[_i];
var selectedIndex = this._getSelectedIndex(options, key);
selectedIndex !== -1 && selectedIndices.push(selectedIndex);
}
return selectedIndices;
};
DropdownBase.prototype._getAllSelectedIndices = function (options) {
return options.map(function (option, index) { return (option.selected ? index : -1); }).filter(function (index) { return index !== -1; });
};
DropdownBase.prototype._getSelectedIndex = function (options, selectedKey) {
return Utilities_1.findIndex(options, function (option) {
// tslint:disable-next-line:triple-equals
if (selectedKey != null) {
return option.key === selectedKey;
}
else {
return !!option.isSelected || !!option.selected;
}
});
};
/**
* Returns true if the key for the event is alt (Mac option) or meta (Mac command).
*/
DropdownBase.prototype._isAltOrMeta = function (ev) {
return ev.which === Utilities_1.KeyCodes.alt || ev.key === 'Meta';
};
/**
* We close the menu on key up only if ALL of the following are true:
* - Most recent key down was alt or meta (command)
* - The alt/meta key down was NOT followed by some other key (such as down/up arrow to
* expand/collapse the menu)
* - We're not on a Mac (or iOS)
*
* This is because on Windows, pressing alt moves focus to the application menu bar or similar,
* closing any open context menus. There is not a similar behavior on Macs.
*/
DropdownBase.prototype._shouldHandleKeyUp = function (ev) {
var keyPressIsAltOrMetaAlone = this._lastKeyDownWasAltOrMeta && this._isAltOrMeta(ev);
this._lastKeyDownWasAltOrMeta = false;
return !!keyPressIsAltOrMetaAlone && !(Utilities_1.isMac() || Utilities_1.isIOS());
};
DropdownBase.defaultProps = {
options: []
};
DropdownBase = tslib_1.__decorate([
withResponsiveMode_1.withResponsiveMode
], DropdownBase);
return DropdownBase;
}(React.Component));
exports.DropdownBase = DropdownBase;
//# sourceMappingURL=Dropdown.base.js.map