matrix-react-sdk
Version:
SDK for matrix.org using React
132 lines (100 loc) • 14.7 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _react = _interopRequireDefault(require("react"));
var _reactDom = _interopRequireDefault(require("react-dom"));
var _propTypes = _interopRequireDefault(require("prop-types"));
/**
* The NodeAnimator contains components and animates transitions.
* It will only pick up direct changes to properties ('left', currently), and so
* will not work for animating positional changes where the position is implicit
* from DOM order. This makes it a lot simpler and lighter: if you need fully
* automatic positional animation, look at react-shuffle or similar libraries.
*/
class NodeAnimator extends _react.default.Component {
constructor(props) {
super(props);
this.nodes = {};
this._updateChildren(this.props.children);
}
componentDidUpdate() {
this._updateChildren(this.props.children);
}
/**
*
* @param {HTMLElement} node element to apply styles to
* @param {object} styles a key/value pair of CSS properties
* @returns {void}
*/
_applyStyles(node, styles) {
Object.entries(styles).forEach(([property, value]) => {
node.style[property] = value;
});
}
_updateChildren(newChildren) {
const oldChildren = this.children || {};
this.children = {};
_react.default.Children.toArray(newChildren).forEach(c => {
if (oldChildren[c.key]) {
const old = oldChildren[c.key];
const oldNode = _reactDom.default.findDOMNode(this.nodes[old.key]);
if (oldNode && oldNode.style.left !== c.props.style.left) {
this._applyStyles(oldNode, {
left: c.props.style.left
}); // console.log("translation: "+oldNode.style.left+" -> "+c.props.style.left);
} // clone the old element with the props (and children) of the new element
// so prop updates are still received by the children.
this.children[c.key] = /*#__PURE__*/_react.default.cloneElement(old, c.props, c.props.children);
} else {
// new element. If we have a startStyle, use that as the style and go through
// the enter animations
const newProps = {};
const restingStyle = c.props.style;
const startStyles = this.props.startStyles;
if (startStyles.length > 0) {
const startStyle = startStyles[0];
newProps.style = startStyle; // console.log("mounted@startstyle0: "+JSON.stringify(startStyle));
}
newProps.ref = n => this._collectNode(c.key, n, restingStyle);
this.children[c.key] = /*#__PURE__*/_react.default.cloneElement(c, newProps);
}
});
}
_collectNode(k, node, restingStyle) {
if (node && this.nodes[k] === undefined && this.props.startStyles.length > 0) {
const startStyles = this.props.startStyles;
const domNode = _reactDom.default.findDOMNode(node); // start from startStyle 1: 0 is the one we gave it
// to start with, so now we animate 1 etc.
for (let i = 1; i < startStyles.length; ++i) {
this._applyStyles(domNode, startStyles[i]); // console.log("start:"
// JSON.stringify(startStyles[i]),
// );
} // and then we animate to the resting state
setTimeout(() => {
this._applyStyles(domNode, restingStyle);
}, 0); // console.log("enter:",
// JSON.stringify(restingStyle));
}
this.nodes[k] = node;
}
render() {
return /*#__PURE__*/_react.default.createElement(_react.default.Fragment, null, Object.values(this.children));
}
}
exports.default = NodeAnimator;
(0, _defineProperty2.default)(NodeAnimator, "propTypes", {
// either a list of child nodes, or a single child.
children: _propTypes.default.any,
// optional transition information for changing existing children
transition: _propTypes.default.object,
// a list of state objects to apply to each child node in turn
startStyles: _propTypes.default.array
});
(0, _defineProperty2.default)(NodeAnimator, "defaultProps", {
startStyles: []
});
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This makes it a lot simpler and lighter: if you need fully\n * automatic positional animation, look at react-shuffle or similar libraries.\n */\nexport default class NodeAnimator extends React.Component {\n    static propTypes = {\n        // either a list of child nodes, or a single child.\n        children: PropTypes.any,\n\n        // optional transition information for changing existing children\n        transition: PropTypes.object,\n\n        // a list of state objects to apply to each child node in turn\n        startStyles: PropTypes.array,\n    };\n\n    static defaultProps = {\n        startStyles: [],\n    };\n\n    constructor(props) {\n        super(props);\n\n        this.nodes = {};\n        this._updateChildren(this.props.children);\n    }\n\n    componentDidUpdate() {\n        this._updateChildren(this.props.children);\n    }\n\n    /**\n     *\n     * @param {HTMLElement} node element to apply styles to\n     * @param {object} styles a key/value pair of CSS properties\n     * @returns {void}\n     */\n    _applyStyles(node, styles) {\n        Object.entries(styles).forEach(([property, value]) => {\n            node.style[property] = value;\n        });\n    }\n\n    _updateChildren(newChildren) {\n        const oldChildren = this.children || {};\n        this.children = {};\n        React.Children.toArray(newChildren).forEach((c) => {\n            if (oldChildren[c.key]) {\n                const old = oldChildren[c.key];\n                const oldNode = ReactDom.findDOMNode(this.nodes[old.key]);\n\n                if (oldNode && oldNode.style.left !== c.props.style.left) {\n                    this._applyStyles(oldNode, { left: c.props.style.left });\n                    // console.log(\"translation: \"+oldNode.style.left+\" -> \"+c.props.style.left);\n                }\n                // clone the old element with the props (and children) of the new element\n                // so prop updates are still received by the children.\n                this.children[c.key] = React.cloneElement(old, c.props, c.props.children);\n            } else {\n                // new element. If we have a startStyle, use that as the style and go through\n                // the enter animations\n                const newProps = {};\n                const restingStyle = c.props.style;\n\n                const startStyles = this.props.startStyles;\n                if (startStyles.length > 0) {\n                    const startStyle = startStyles[0];\n                    newProps.style = startStyle;\n                    // console.log(\"mounted@startstyle0: \"+JSON.stringify(startStyle));\n                }\n\n                newProps.ref = ((n) => this._collectNode(\n                    c.key, n, restingStyle,\n                ));\n\n                this.children[c.key] = React.cloneElement(c, newProps);\n            }\n        });\n    }\n\n    _collectNode(k, node, restingStyle) {\n        if (\n            node &&\n            this.nodes[k] === undefined &&\n            this.props.startStyles.length > 0\n        ) {\n            const startStyles = this.props.startStyles;\n            const domNode = ReactDom.findDOMNode(node);\n            // start from startStyle 1: 0 is the one we gave it\n            // to start with, so now we animate 1 etc.\n            for (let i = 1; i < startStyles.length; ++i) {\n                this._applyStyles(domNode, startStyles[i]);\n                // console.log(\"start:\"\n                //             JSON.stringify(startStyles[i]),\n                //             );\n            }\n\n            // and then we animate to the resting state\n            setTimeout(() => {\n                this._applyStyles(domNode, restingStyle);\n            }, 0);\n\n            // console.log(\"enter:\",\n            //             JSON.stringify(restingStyle));\n        }\n        this.nodes[k] = node;\n    }\n\n    render() {\n        return (\n            <>{ Object.values(this.children) }</>\n        );\n    }\n}\n"]}