@blueprintjs/core
Version:
Core styles & components
180 lines • 7.39 kB
JavaScript
/*
* 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 * as tslib_1 from "tslib";
import classNames from "classnames";
import * as React from "react";
import { polyfill } from "react-lifecycles-compat";
import { AbstractPureComponent2, Classes } from "../../common";
import { DISPLAYNAME_PREFIX } from "../../common/props";
/**
* `Collapse` can be in one of six states, enumerated here.
* When changing the `isOpen` prop, the following happens to the states:
* isOpen={true} : CLOSED -> OPEN_START -> OPENING -> OPEN
* isOpen={false} : OPEN -> CLOSING_START -> CLOSING -> CLOSED
*/
export var AnimationStates;
(function (AnimationStates) {
/**
* The body is re-rendered, height is set to the measured body height and
* the body Y is set to 0.
*/
AnimationStates[AnimationStates["OPEN_START"] = 0] = "OPEN_START";
/**
* Animation begins, height is set to auto. This is all animated, and on
* complete, the state changes to OPEN.
*/
AnimationStates[AnimationStates["OPENING"] = 1] = "OPENING";
/**
* The collapse height is set to auto, and the body Y is set to 0 (so the
* element can be seen as normal).
*/
AnimationStates[AnimationStates["OPEN"] = 2] = "OPEN";
/**
* Height has been changed from auto to the measured height of the body to
* prepare for the closing animation in CLOSING.
*/
AnimationStates[AnimationStates["CLOSING_START"] = 3] = "CLOSING_START";
/**
* Height is set to 0 and the body Y is at -height. Both of these properties
* are transformed, and then after the animation is complete, the state
* changes to CLOSED.
*/
AnimationStates[AnimationStates["CLOSING"] = 4] = "CLOSING";
/**
* The contents of the collapse is not rendered, the collapse height is 0,
* and the body Y is at -height (so that the bottom of the body is at Y=0).
*/
AnimationStates[AnimationStates["CLOSED"] = 5] = "CLOSED";
})(AnimationStates || (AnimationStates = {}));
let Collapse = class Collapse extends AbstractPureComponent2 {
constructor() {
super(...arguments);
this.state = {
animationState: this.props.isOpen ? AnimationStates.OPEN : AnimationStates.CLOSED,
height: "0px",
};
this.contentsRefHandler = (el) => {
this.contents = el;
if (el != null) {
this.setState({
animationState: this.props.isOpen ? AnimationStates.OPEN : AnimationStates.CLOSED,
height: `${this.contents.clientHeight}px`,
});
}
};
}
static getDerivedStateFromProps(props, state) {
const { isOpen } = props;
const { animationState } = state;
if (isOpen) {
switch (animationState) {
case AnimationStates.OPENING:
// allow Collapse#onDelayedStateChange() to handle the transition here
break;
case AnimationStates.OPEN:
break;
default:
return { animationState: AnimationStates.OPEN_START };
}
}
else {
switch (animationState) {
case AnimationStates.CLOSING:
// allow Collapse#onDelayedStateChange() to handle the transition here
break;
case AnimationStates.CLOSED:
break;
default:
return { animationState: AnimationStates.CLOSING_START };
}
}
return null;
}
render() {
const isContentVisible = this.state.animationState !== AnimationStates.CLOSED;
const shouldRenderChildren = isContentVisible || this.props.keepChildrenMounted;
const displayWithTransform = isContentVisible && this.state.animationState !== AnimationStates.CLOSING;
const isAutoHeight = this.state.height === "auto";
const containerStyle = {
height: isContentVisible ? this.state.height : undefined,
overflowY: (isAutoHeight ? "visible" : undefined),
transition: isAutoHeight ? "none" : undefined,
};
const contentsStyle = {
transform: displayWithTransform ? "translateY(0)" : `translateY(-${this.state.height}px)`,
transition: isAutoHeight ? "none" : undefined,
};
return React.createElement(this.props.component, {
className: classNames(Classes.COLLAPSE, this.props.className),
style: containerStyle,
}, React.createElement("div", { className: Classes.COLLAPSE_BODY, ref: this.contentsRefHandler, style: contentsStyle, "aria-hidden": !isContentVisible && this.props.keepChildrenMounted }, shouldRenderChildren ? this.props.children : null));
}
componentDidMount() {
this.forceUpdate();
if (this.props.isOpen) {
this.setState({ animationState: AnimationStates.OPEN, height: "auto" });
}
else {
this.setState({ animationState: AnimationStates.CLOSED });
}
}
componentDidUpdate() {
let height;
if (this.contents != null && this.contents.clientHeight !== 0) {
height = this.contents.clientHeight;
}
const { transitionDuration } = this.props;
const { animationState } = this.state;
if (animationState === AnimationStates.CLOSING_START) {
this.setTimeout(() => this.setState({
animationState: AnimationStates.CLOSING,
height: "0px",
}));
this.setTimeout(() => this.onDelayedStateChange(), transitionDuration);
}
else if (animationState === AnimationStates.OPEN_START) {
this.setState({
animationState: AnimationStates.OPENING,
height: height !== undefined ? `${height}px` : this.state.height,
});
this.setTimeout(() => this.onDelayedStateChange(), transitionDuration);
}
}
onDelayedStateChange() {
switch (this.state.animationState) {
case AnimationStates.OPENING:
this.setState({ animationState: AnimationStates.OPEN, height: "auto" });
break;
case AnimationStates.CLOSING:
this.setState({ animationState: AnimationStates.CLOSED });
break;
default:
break;
}
}
};
Collapse.displayName = `${DISPLAYNAME_PREFIX}.Collapse`;
Collapse.defaultProps = {
component: "div",
isOpen: false,
keepChildrenMounted: false,
transitionDuration: 200,
};
Collapse = tslib_1.__decorate([
polyfill
], Collapse);
export { Collapse };
//# sourceMappingURL=collapse.js.map