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@blueprintjs/core

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/* * Copyright 2015 Palantir Technologies, Inc. All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import classNames from "classnames"; import * as React from "react"; import { Boundary } from "../../common/boundary"; import * as Classes from "../../common/classes"; import * as Errors from "../../common/errors"; import { Position } from "../../common/position"; import { DISPLAYNAME_PREFIX } from "../../common/props"; import { isElementOfType } from "../../common/utils"; import { Menu } from "../menu/menu"; import { MenuItem } from "../menu/menuItem"; import { Popover } from "../popover/popover"; /** @deprecated use `<OverflowList>` for automatic overflow based on available space. */ export class CollapsibleList extends React.Component { render() { const { collapseFrom } = this.props; const childrenLength = React.Children.count(this.props.children); const [visibleChildren, collapsedChildren] = this.partitionChildren(); const visibleItems = visibleChildren.map((child, index) => { const absoluteIndex = collapseFrom === Boundary.START ? childrenLength - 1 - index : index; return (React.createElement("li", { className: this.props.visibleItemClassName, key: absoluteIndex }, this.props.visibleItemRenderer(child.props, absoluteIndex))); }); if (collapseFrom === Boundary.START) { // reverse START list so separators appear before items visibleItems.reverse(); } // construct dropdown menu for collapsed items let collapsedPopover; if (collapsedChildren.length > 0) { const position = collapseFrom === Boundary.END ? Position.BOTTOM_RIGHT : Position.BOTTOM_LEFT; collapsedPopover = (React.createElement("li", { className: this.props.visibleItemClassName }, React.createElement(Popover, Object.assign({ content: React.createElement(Menu, null, collapsedChildren), position: position }, this.props.dropdownProps), this.props.dropdownTarget))); } return (React.createElement("ul", { className: classNames(Classes.COLLAPSIBLE_LIST, this.props.className) }, collapseFrom === Boundary.START ? collapsedPopover : null, visibleItems, collapseFrom === Boundary.END ? collapsedPopover : null)); } // splits the list of children into two arrays: visible and collapsed partitionChildren() { if (this.props.children == null) { return [[], []]; } const childrenArray = React.Children.map(this.props.children, (child, index) => { if (!isElementOfType(child, MenuItem)) { throw new Error(Errors.COLLAPSIBLE_LIST_INVALID_CHILD); } return React.cloneElement(child, { key: `visible-${index}` }); }); if (this.props.collapseFrom === Boundary.START) { // reverse START list so we can always slice visible items from the front of the list childrenArray.reverse(); } const { visibleItemCount } = this.props; return [childrenArray.slice(0, visibleItemCount), childrenArray.slice(visibleItemCount)]; } } CollapsibleList.displayName = `${DISPLAYNAME_PREFIX}.CollapsibleList`; CollapsibleList.defaultProps = { collapseFrom: Boundary.START, dropdownTarget: null, visibleItemCount: 3, visibleItemRenderer: null, }; //# sourceMappingURL=collapsibleList.js.map