@blueprintjs/core
Version:
Core styles & components
72 lines • 4.13 kB
JavaScript
/*
* Copyright 2021 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 { __spreadArray } from "tslib";
import classNames from "classnames";
import * as React from "react";
import { CSSTransition, TransitionGroup } from "react-transition-group";
import { Classes, DISPLAYNAME_PREFIX } from "../../common";
import { usePrevious } from "../../hooks";
import { PanelView2 } from "./panelView2";
/**
* Panel stack (v2) component.
*
* @see https://blueprintjs.com/docs/#core/components/panel-stack2
* @template T type union of all possible panels in this stack
*/
export var PanelStack2 = function (props) {
var _a;
var initialPanel = props.initialPanel, onClose = props.onClose, onOpen = props.onOpen, _b = props.renderActivePanelOnly, renderActivePanelOnly = _b === void 0 ? true : _b, _c = props.showPanelHeader, showPanelHeader = _c === void 0 ? true : _c, propsStack = props.stack;
var isControlled = propsStack != null;
var _d = React.useState(initialPanel !== undefined ? [initialPanel] : []), localStack = _d[0], setLocalStack = _d[1];
var stack = React.useMemo(function () { return (isControlled ? propsStack.slice().reverse() : localStack); }, [localStack, isControlled, propsStack]);
var prevStackLength = (_a = usePrevious(stack.length)) !== null && _a !== void 0 ? _a : stack.length;
var direction = stack.length - prevStackLength < 0 ? "pop" : "push";
var handlePanelOpen = React.useCallback(function (panel) {
onOpen === null || onOpen === void 0 ? void 0 : onOpen(panel);
if (!isControlled) {
setLocalStack(function (prevStack) { return __spreadArray([panel], prevStack, true); });
}
}, [onOpen, isControlled]);
var handlePanelClose = React.useCallback(function (panel) {
onClose === null || onClose === void 0 ? void 0 : onClose(panel);
if (!isControlled) {
setLocalStack(function (prevStack) { return prevStack.slice(1); });
}
}, [onClose, isControlled]);
// early return, after all hooks are called
if (stack.length === 0) {
return null;
}
var panelsToRender = renderActivePanelOnly ? [stack[0]] : stack;
var panels = panelsToRender
.map(function (panel, index) {
// With renderActivePanelOnly={false} we would keep all the CSSTransitions rendered,
// therefore they would not trigger the "enter" transition event as they were entered.
// To force the enter event, we want to change the key, but stack.length is not enough
// and a single panel should not rerender as long as it's hidden.
// This key contains two parts: first one, stack.length - index is constant (and unique) for each panel,
// second one, active changes only when the panel becomes or stops being active.
var layer = stack.length - index;
var key = renderActivePanelOnly ? stack.length : layer;
return (React.createElement(CSSTransition, { classNames: Classes.PANEL_STACK2, key: key, timeout: 400 },
React.createElement(PanelView2, { onClose: handlePanelClose, onOpen: handlePanelOpen, panel: panel, previousPanel: stack[index + 1], showHeader: showPanelHeader })));
})
.reverse();
var classes = classNames(Classes.PANEL_STACK2, "".concat(Classes.PANEL_STACK2, "-").concat(direction), props.className);
return (React.createElement(TransitionGroup, { className: classes, component: "div" }, panels));
};
PanelStack2.displayName = "".concat(DISPLAYNAME_PREFIX, ".PanelStack2");
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