mk-component/lib/components/datagrid/autoSizer.js

- 1、npm install mk-component --save

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _extends2 = require('babel-runtime/helpers/extends');

var _extends3 = _interopRequireDefault(_extends2);

var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _react = require('react');

var React = _interopRequireWildcard(_react);

var _detectElementResize = require('./detectElementResize');

var _detectElementResize2 = _interopRequireDefault(_detectElementResize);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var AutoSizer = function (_React$PureComponent) {
    (0, _inherits3.default)(AutoSizer, _React$PureComponent);

    function AutoSizer(props) {
        (0, _classCallCheck3.default)(this, AutoSizer);

        var _this = (0, _possibleConstructorReturn3.default)(this, (AutoSizer.__proto__ || (0, _getPrototypeOf2.default)(AutoSizer)).call(this, props));

        _this.state = {
            height: _this.props.defaultHeight || 0,
            width: _this.props.defaultWidth || 0
        };

        _this._onResize = function () {
            var _this$props = _this.props,
                disableHeight = _this$props.disableHeight,
                disableWidth = _this$props.disableWidth,
                onResize = _this$props.onResize;


            if (_this._parentNode) {
                // Guard against AutoSizer component being removed from the DOM immediately after being added.
                // This can result in invalid style values which can result in NaN values if we don't handle them.
                // See issue #150 for more context.

                var height = _this._parentNode.offsetHeight || 0;
                var width = _this._parentNode.offsetWidth || 0;

                var style = window.getComputedStyle(_this._parentNode) || {};
                var paddingLeft = parseInt(style.paddingLeft, 10) || 0;
                var paddingRight = parseInt(style.paddingRight, 10) || 0;
                var paddingTop = parseInt(style.paddingTop, 10) || 0;
                var paddingBottom = parseInt(style.paddingBottom, 10) || 0;

                var newHeight = height - paddingTop - paddingBottom;
                var newWidth = width - paddingLeft - paddingRight;

                if (!disableHeight && _this.state.height !== newHeight || !disableWidth && _this.state.width !== newWidth) {
                    _this.setState({
                        height: height - paddingTop - paddingBottom,
                        width: width - paddingLeft - paddingRight
                    });

                    onResize({ height: height, width: width });
                }
            }
        };

        _this._setRef = function (autoSizer) {
            _this._autoSizer = autoSizer;
        };

        return _this;
    }

    (0, _createClass3.default)(AutoSizer, [{
        key: 'componentDidMount',
        value: function componentDidMount() {
            var nonce = this.props.nonce;

            if (this._autoSizer && this._autoSizer.parentNode && this._autoSizer.parentNode.ownerDocument && this._autoSizer.parentNode.ownerDocument.defaultView && this._autoSizer.parentNode instanceof this._autoSizer.parentNode.ownerDocument.defaultView.HTMLElement) {
                // Delay access of parentNode until mount.
                // This handles edge-cases where the component has already been unmounted before its ref has been set,
                // As well as libraries like react-lite which have a slightly different lifecycle.
                this._parentNode = this._autoSizer.parentNode;

                // Defer requiring resize handler in order to support server-side rendering.
                // See issue #41
                this._detectElementResize = (0, _detectElementResize2.default)(nonce);
                this._detectElementResize.addResizeListener(this._parentNode, this._onResize);

                this._onResize();
            }
        }
    }, {
        key: 'componentWillUnmount',
        value: function componentWillUnmount() {
            if (this._detectElementResize && this._parentNode) {
                this._detectElementResize.removeResizeListener(this._parentNode, this._onResize);
            }
        }
    }, {
        key: 'render',
        value: function render() {
            var _props = this.props,
                children = _props.children,
                className = _props.className,
                disableHeight = _props.disableHeight,
                disableWidth = _props.disableWidth,
                style = _props.style;
            var _state = this.state,
                height = _state.height,
                width = _state.width;

            // Outer div should not force width/height since that may prevent containers from shrinking.
            // Inner component should overflow and use calculated width/height.
            // See issue #68 for more information.

            var outerStyle = { overflow: 'visible' };
            var childParams = {};

            if (!disableHeight) {
                outerStyle.height = 0;
                childParams.height = height;
            }

            if (!disableWidth) {
                outerStyle.width = 0;
                childParams.width = width;
            }

            /**
             * TODO: Avoid rendering children before the initial measurements have been collected.
             * At best this would just be wasting cycles.
             * Add this check into version 10 though as it could break too many ref callbacks in version 9.
             * Note that if default width/height props were provided this would still work with SSR.
            if (
              height !== 0 &&
              width !== 0
            ) {
              child = children({ height, width })
            }
            */

            return React.createElement(
                'div',
                {
                    className: className,
                    ref: this._setRef,
                    style: (0, _extends3.default)({}, outerStyle, style) },
                children(childParams)
            );
        }
    }]);
    return AutoSizer;
}(React.PureComponent);

AutoSizer.defaultProps = {
    onResize: function onResize() {},
    disableHeight: false,
    disableWidth: false,
    style: {}
};
exports.default = AutoSizer;
module.exports = exports['default'];