@blueprintjs/core
Version:
Core styles & components
79 lines (78 loc) • 3.92 kB
JavaScript
/*
* Copyright 2015 Palantir Technologies, Inc. All rights reserved.
*
* Licensed under the terms of the LICENSE file distributed with this project.
*/
import * as tslib_1 from "tslib";
import * as classNames from "classnames";
import * as React from "react";
import * as Classes from "../../common/classes";
import * as Errors from "../../common/errors";
import { Position } from "../../common/position";
import { Menu } from "../menu/menu";
import { MenuItem } from "../menu/menuItem";
import { Popover } from "../popover/popover";
export var CollapseFrom;
(function (CollapseFrom) {
CollapseFrom[CollapseFrom["START"] = 0] = "START";
CollapseFrom[CollapseFrom["END"] = 1] = "END";
})(CollapseFrom || (CollapseFrom = {}));
var CollapsibleList = (function (_super) {
tslib_1.__extends(CollapsibleList, _super);
function CollapsibleList() {
return _super !== null && _super.apply(this, arguments) || this;
}
CollapsibleList.prototype.render = function () {
var _this = this;
var collapseFrom = this.props.collapseFrom;
var childrenLength = React.Children.count(this.props.children);
var _a = this.partitionChildren(), visibleChildren = _a[0], collapsedChildren = _a[1];
var visibleItems = visibleChildren.map(function (child, index) {
var absoluteIndex = collapseFrom === CollapseFrom.START ? childrenLength - 1 - index : index;
return (React.createElement("li", { className: _this.props.visibleItemClassName, key: absoluteIndex }, _this.props.renderVisibleItem(child.props, absoluteIndex)));
});
if (collapseFrom === CollapseFrom.START) {
// reverse START list so separators appear before items
visibleItems.reverse();
}
// construct dropdown menu for collapsed items
var collapsedPopover;
if (collapsedChildren.length > 0) {
var position = collapseFrom === CollapseFrom.END ? Position.BOTTOM_RIGHT : Position.BOTTOM_LEFT;
collapsedPopover = (React.createElement("li", { className: this.props.visibleItemClassName },
React.createElement(Popover, tslib_1.__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 === CollapseFrom.START ? collapsedPopover : null,
visibleItems,
collapseFrom === CollapseFrom.END ? collapsedPopover : null));
};
// splits the list of children into two arrays: visible and collapsed
CollapsibleList.prototype.partitionChildren = function () {
if (this.props.children == null) {
return [[], []];
}
var childrenArray = React.Children.map(this.props.children, function (child, index) {
if (child.type !== MenuItem) {
throw new Error(Errors.COLLAPSIBLE_LIST_INVALID_CHILD);
}
return React.cloneElement(child, { key: "visible-" + index });
});
if (this.props.collapseFrom === CollapseFrom.START) {
// reverse START list so we can always slice visible items from the front of the list
childrenArray.reverse();
}
var visibleItemCount = this.props.visibleItemCount;
return [childrenArray.slice(0, visibleItemCount), childrenArray.slice(visibleItemCount)];
};
CollapsibleList.displayName = "Blueprint.CollapsibleList";
CollapsibleList.defaultProps = {
collapseFrom: CollapseFrom.START,
dropdownTarget: null,
renderVisibleItem: null,
visibleItemCount: 3,
};
return CollapsibleList;
}(React.Component));
export { CollapsibleList };
export var CollapsibleListFactory = React.createFactory(CollapsibleList);