@blueprintjs/core
Version:
Core styles & components
113 lines • 5.09 kB
JavaScript
/*
* Copyright 2018 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 { CSSTransition, TransitionGroup } from "react-transition-group";
import { AbstractPureComponent, Classes } from "../../common";
import * as Errors from "../../common/errors";
import { PanelView } from "./panelView";
/**
* Panel stack component.
*
* @see https://blueprintjs.com/docs/#core/components/panel-stack
* @deprecated use `PanelStack2<T>`
*/
export class PanelStack extends AbstractPureComponent {
state = {
direction: "push",
stack: this.props.stack != null
? this.props.stack.slice().reverse()
: this.props.initialPanel !== undefined
? [this.props.initialPanel]
: [],
};
componentDidUpdate(prevProps, prevState) {
super.componentDidUpdate(prevProps, prevState);
// Always update local stack if stack prop changes
if (this.props.stack !== prevProps.stack && prevProps.stack != null) {
this.setState({ stack: this.props.stack.slice().reverse() });
}
// Only update animation direction if stack length changes
const stackLength = this.props.stack != null ? this.props.stack.length : 0;
const prevStackLength = prevProps.stack != null ? prevProps.stack.length : 0;
if (stackLength !== prevStackLength && prevProps.stack != null) {
this.setState({
direction: prevProps.stack.length - this.props.stack.length < 0 ? "push" : "pop",
});
}
}
render() {
const classes = classNames(Classes.PANEL_STACK, `${Classes.PANEL_STACK}-${this.state.direction}`, this.props.className);
return (React.createElement(TransitionGroup, { className: classes, component: "div" }, this.renderPanels()));
}
validateProps(props) {
if ((props.initialPanel == null && props.stack == null) ||
(props.initialPanel != null && props.stack != null)) {
console.error(Errors.PANEL_STACK_INITIAL_PANEL_STACK_MUTEX);
}
if (props.stack != null && props.stack.length === 0) {
console.error(Errors.PANEL_STACK_REQUIRES_PANEL);
}
}
renderPanels() {
const { renderActivePanelOnly = true } = this.props;
const { stack } = this.state;
if (stack.length === 0) {
return null;
}
const panelsToRender = renderActivePanelOnly ? [stack[0]] : stack;
const panelViews = panelsToRender.map(this.renderPanel).reverse();
return panelViews;
}
renderPanel = (panel, index) => {
const { renderActivePanelOnly, showPanelHeader = true } = this.props;
const { stack } = this.state;
// 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.
const layer = stack.length - index;
const key = renderActivePanelOnly ? stack.length : layer;
return (React.createElement(CSSTransition, { classNames: Classes.PANEL_STACK, key: key, timeout: 400 },
React.createElement(PanelView, { onClose: this.handlePanelClose, onOpen: this.handlePanelOpen, panel: panel, previousPanel: stack[index + 1], showHeader: showPanelHeader })));
};
handlePanelClose = (panel) => {
const { stack } = this.state;
// only remove this panel if it is at the top and not the only one.
if (stack[0] !== panel || stack.length <= 1) {
return;
}
this.props.onClose?.(panel);
if (this.props.stack == null) {
this.setState(state => ({
direction: "pop",
stack: state.stack.slice(1),
}));
}
};
handlePanelOpen = (panel) => {
this.props.onOpen?.(panel);
if (this.props.stack == null) {
this.setState(state => ({
direction: "push",
stack: [panel, ...state.stack],
}));
}
};
}
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