all files / lib/components/ContextualMenu/ ContextualMenu.js

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"use strict";
var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var React = require('react');
var DirectionalHint_1 = require('../../common/DirectionalHint');
var FocusZone_1 = require('../../FocusZone');
var KeyCodes_1 = require('../../utilities/KeyCodes');
var EventGroup_1 = require('../../utilities/eventGroup/EventGroup');
var css_1 = require('../../utilities/css');
var rtl_1 = require('../../utilities/rtl');
var Async_1 = require('../../utilities/Async/Async');
var Callout_1 = require('../../Callout');
require('./ContextualMenu.scss');
var ContextualMenuType;
(function (ContextualMenuType) {
    ContextualMenuType[ContextualMenuType["vertical"] = 0] = "vertical";
    ContextualMenuType[ContextualMenuType["horizontal"] = 1] = "horizontal";
})(ContextualMenuType || (ContextualMenuType = {}));
var HorizontalAlignmentHint;
(function (HorizontalAlignmentHint) {
    HorizontalAlignmentHint[HorizontalAlignmentHint["auto"] = 0] = "auto";
    HorizontalAlignmentHint[HorizontalAlignmentHint["left"] = 1] = "left";
    HorizontalAlignmentHint[HorizontalAlignmentHint["center"] = 2] = "center";
    HorizontalAlignmentHint[HorizontalAlignmentHint["right"] = 3] = "right";
})(HorizontalAlignmentHint || (HorizontalAlignmentHint = {}));
var VerticalAlignmentHint;
(function (VerticalAlignmentHint) {
    VerticalAlignmentHint[VerticalAlignmentHint["top"] = 0] = "top";
    VerticalAlignmentHint[VerticalAlignmentHint["center"] = 1] = "center";
    VerticalAlignmentHint[VerticalAlignmentHint["bottom"] = 2] = "bottom";
})(VerticalAlignmentHint || (VerticalAlignmentHint = {}));
var _instance = 0;
var ContextualMenu = (function (_super) {
    __extends(ContextualMenu, _super);
    function ContextualMenu(props) {
        _super.call(this, props);
        this.state = {
            contextualMenuItems: null,
            subMenuId: 'ContextualMenu-SubMenu-' + _instance++
        };
        this._isFocusingPreviousElement = false;
        this._didSetInitialFocus = false;
        this._enterTimerId = 0;
        this._events = new EventGroup_1.EventGroup(this);
        this._async = new Async_1.Async(this);
        this.dismiss = this.dismiss.bind(this);
        this._onKeyDown = this._onKeyDown.bind(this);
        this._onMouseDownCapture = this._onMouseDownCapture.bind(this);
        this._onItemClick = this._onItemClick.bind(this);
        this._onSubMenuDismiss = this._onSubMenuDismiss.bind(this);
        this._onMouseEnter = this._onMouseEnter.bind(this);
        this._onMouseLeave = this._onMouseLeave.bind(this);
    }
    ContextualMenu.prototype.dismiss = function (ev) {
        var onDismiss = this.props.onDismiss;
        if (onDismiss) {
            onDismiss(ev);
        }
    };
    // Invoked once, both on the client and server, immediately before the initial rendering occurs.
    ContextualMenu.prototype.componentWillMount = function () {
        this._previousActiveElement = document.activeElement;
    };
    // Invoked once, only on the client (not on the server), immediately after the initial rendering occurs.
    ContextualMenu.prototype.componentDidMount = function () {
        this._events.on(window, 'resize', this.dismiss);
        this._events.on(window, 'mousedown', this._onMouseDownCapture, true);
        this._events.on(window, 'touchstart', this._onMouseDownCapture, true);
    };
    // Invoked when a component is receiving new props.
    ContextualMenu.prototype.componentWillReceiveProps = function (newProps, newState) {
        if (newProps.targetElement !== this.props.targetElement) {
            this._didSetInitialFocus = false;
        }
    };
    // Invoked immediately before a component is unmounted from the DOM.
    ContextualMenu.prototype.componentWillUnmount = function () {
        var _this = this;
        if (this._isFocusingPreviousElement && this._previousActiveElement) {
            // This slight delay is required so that we can unwind the stack, let react try to mess with focus, and then
            // apply the correct focus. Without the setTimeout, we end up focusing the correct thing, and then React wants
            // to reset the focus back to the thing it thinks should have been focused.
            setTimeout(function () { return _this._previousActiveElement.focus(); }, 0);
        }
        this._events.dispose();
        this._async.dispose();
    };
    ContextualMenu.prototype.render = function () {
        var _this = this;
        var _a = this.props, className = _a.className, items = _a.items, isBeakVisible = _a.isBeakVisible, labelElementId = _a.labelElementId, targetElement = _a.targetElement, id = _a.id, targetPoint = _a.targetPoint, useTargetPoint = _a.useTargetPoint, beakWidth = _a.beakWidth, directionalHint = _a.directionalHint, gapSpace = _a.gapSpace, isSubMenu = _a.isSubMenu, coverTarget = _a.coverTarget;
        var submenuProps = this.state.submenuProps;
        var hasIcons = !!(items && items.some(function (item) { return !!item.icon; }));
        var hasCheckmarks = !!(items && items.some(function (item) { return !!item.canCheck; }));
        return (React.createElement(Callout_1.Callout, {targetElement: targetElement, targetPoint: targetPoint, useTargetPoint: useTargetPoint, isBeakVisible: isBeakVisible, beakWidth: beakWidth, directionalHint: directionalHint, gapSpace: gapSpace, doNotLayer: isSubMenu, coverTarget: coverTarget, beakStyle: 'ms-Callout-smallbeak', className: 'ms-ContextualMenu-Callout', onLayerMounted: function () { return _this._tryFocus(_this._focusZone); }, onDismiss: this.props.onDismiss}, React.createElement("div", {ref: function (host) { return _this._host = host; }, id: id, className: css_1.css('ms-ContextualMenu-container', className)}, (items && items.length) ? (React.createElement(FocusZone_1.FocusZone, {className: 'ms-ContextualMenu is-open', direction: FocusZone_1.FocusZoneDirection.vertical, role: 'menu', ariaLabelledBy: labelElementId, ref: function (focusZone) { return _this._focusZone = focusZone; }}, React.createElement("ul", {className: 'ms-ContextualMenu-list is-open ', onKeyDown: this._onKeyDown}, items.map(function (item, index) { return (
        // If the item name is equal to '-', a divider will be generated.
        item.name === '-' ? (React.createElement("li", {role: 'separator', key: item.key || index, className: css_1.css('ms-ContextualMenu-item ms-ContextualMenu-item--divider', item.className)})) : (React.createElement("li", {role: 'menuitem', key: item.key || index, className: css_1.css('ms-ContextualMenu-item', item.className)}, _this._renderMenuItem(item, index, hasCheckmarks, hasIcons)))); })))) : (null), submenuProps ? (React.createElement(ContextualMenu, React.__spread({}, submenuProps))) : (null))));
    };
    ContextualMenu.prototype._renderMenuItem = function (item, index, hasCheckmarks, hasIcons) {
        var _this = this;
        var _a = this.state, expandedMenuItemKey = _a.expandedMenuItemKey, subMenuId = _a.subMenuId;
        if (item.onRender) {
            return item.onRender(item);
        }
        return React.createElement('button', { className: css_1.css('ms-ContextualMenu-link', { 'is-expanded': (expandedMenuItemKey === item.key) }),
            onClick: item.onClick || (item.items && item.items.length) ? this._onItemClick.bind(this, item) : item.href ? function () { location.href = item.href; } : null,
            onKeyDown: item.items && item.items.length ? this._onItemKeyDown.bind(this, item) : null,
            onMouseEnter: this._onMouseEnter.bind(this, item),
            onMouseLeave: this._onMouseLeave,
            onMouseDown: function (ev) { return _this._onItemMouseDown(item, ev); },
            disabled: item.isDisabled,
            dataCommandKey: index,
            role: 'menuitem',
            href: item.href,
            'aria-haspopup': item.items && item.items.length ? true : null,
            'aria-owns': item.key === expandedMenuItemKey ? subMenuId : null }, this._renderMenuItemChildren(item, index, hasCheckmarks, hasIcons));
    };
    ContextualMenu.prototype._renderMenuItemChildren = function (item, index, hasCheckmarks, hasIcons) {
        return (React.createElement("div", null, (hasCheckmarks) ? (React.createElement("span", {className: css_1.css('ms-ContextualMenu-checkmark', { 'ms-Icon ms-Icon--check': item.isChecked, 'not-selected': !item.isChecked }), onClick: this._onItemClick.bind(this, item)})) : (null), (hasIcons) ? (React.createElement("span", {className: 'ms-ContextualMenu-icon' + ((item.icon) ? " ms-Icon ms-Icon--" + item.icon : ' no-icon')})) : (null), React.createElement("span", {className: 'ms-ContextualMenu-itemText ms-fontWeight-regular'}, item.name), (item.items && item.items.length) ? (React.createElement("i", {className: css_1.css('ms-ContextualMenu-chevronRight ms-Icon', rtl_1.getRTL() ? 'ms-Icon--chevronLeft' : 'ms-Icon--chevronRight')})) : (null)));
    };
    ContextualMenu.prototype._tryFocus = function (focusZone) {
        if (focusZone && this.props.shouldFocusOnMount) {
            focusZone.focus();
        }
    };
    ContextualMenu.prototype._onKeyDown = function (ev) {
        var submenuCloseKey = rtl_1.getRTL() ? KeyCodes_1.KeyCodes.right : KeyCodes_1.KeyCodes.left;
        if (ev.which === KeyCodes_1.KeyCodes.escape
            || ev.which === KeyCodes_1.KeyCodes.tab
            || (ev.which === submenuCloseKey && this.props.isSubMenu)) {
            // When a user presses escape, we will try to refocus the previous focused element.
            this._isFocusingPreviousElement = true;
            ev.preventDefault();
            ev.stopPropagation();
            this.dismiss(ev);
        }
    };
    ContextualMenu.prototype._onMouseEnter = function (item, ev) {
        var _this = this;
        var targetElement = ev.currentTarget;
        if (item.key !== this.state.expandedMenuItemKey) {
            if (item.items && item.items.length) {
                this._enterTimerId = this._async.setTimeout(function () { return _this._onSubMenuExpand(item, targetElement); }, 500);
            }
            else {
                this._enterTimerId = this._async.setTimeout(function () { return _this._onSubMenuDismiss(ev); }, 500);
            }
        }
    };
    ContextualMenu.prototype._onMouseLeave = function (ev) {
        this._async.clearTimeout(this._enterTimerId);
    };
    ContextualMenu.prototype._onMouseDownCapture = function (ev) {
        if (!this._host.contains(ev.target)) {
            this.dismiss(ev);
        }
    };
    ContextualMenu.prototype._onItemMouseDown = function (item, ev) {
        if (item.onMouseDown) {
            item.onMouseDown(item, ev);
        }
    };
    ContextualMenu.prototype._onItemClick = function (item, ev) {
        if (item.key !== this.state.expandedMenuItemKey) {
            if (!item.items || !item.items.length) {
                if (item.onClick) {
                    item.onClick(item, ev);
                }
                this.dismiss(ev);
            }
            else {
                if (item.key === this.state.dismissedMenuItemKey) {
                    this._onSubMenuDismiss(ev);
                }
                else {
                    this._onSubMenuExpand(item, ev.currentTarget);
                }
            }
        }
        ev.stopPropagation();
        ev.preventDefault();
    };
    ContextualMenu.prototype._onItemKeyDown = function (item, ev) {
        var openKey = rtl_1.getRTL() ? KeyCodes_1.KeyCodes.left : KeyCodes_1.KeyCodes.right;
        if (ev.which === openKey) {
            this._onSubMenuExpand(item, ev.currentTarget);
        }
    };
    ContextualMenu.prototype._onSubMenuExpand = function (item, target) {
        if (this.state.expandedMenuItemKey !== item.key) {
            if (this.state.submenuProps) {
                this._onSubMenuDismiss();
            }
            this.setState({
                expandedMenuItemKey: item.key,
                submenuProps: {
                    items: item.items,
                    targetElement: target,
                    onDismiss: this._onSubMenuDismiss,
                    isSubMenu: true,
                    id: this.state.subMenuId,
                    shouldFocusOnMount: true,
                    directionalHint: DirectionalHint_1.DirectionalHint.rightTopEdge,
                    className: item.className
                }
            });
        }
    };
    ContextualMenu.prototype._onSubMenuDismiss = function (ev) {
        var itemKey = null;
        var list = this.refs[this.state.expandedMenuItemKey];
        if (list && list.contains(ev.target)) {
            itemKey = this.state.expandedMenuItemKey;
        }
        this.setState({
            dismissedMenuItemKey: itemKey,
            expandedMenuItemKey: null,
            submenuProps: null
        });
    };
    // The default ContextualMenu properities have no items and beak, the default submenu direction is right and top.
    ContextualMenu.defaultProps = {
        items: [],
        shouldFocusOnMount: true,
        isBeakVisible: false,
        gapSpace: 0,
        directionalHint: DirectionalHint_1.DirectionalHint.rightBottomEdge,
        beakWidth: 16
    };
    return ContextualMenu;
}(React.Component));
exports.ContextualMenu = ContextualMenu;
 
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