react-dynamic-font/es/index.esm.js

make your text does not wrap and dynamically adjust the font size

import { createRef, createElement, Component } from 'react';

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Copyright (c) Microsoft Corporation. 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

THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.

See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
/* global Reflect, Promise */

var extendStatics = function(d, b) {
    extendStatics = Object.setPrototypeOf ||
        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
    return extendStatics(d, b);
};

function __extends(d, b) {
    extendStatics(d, b);
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
}

var __assign = function() {
    __assign = Object.assign || function __assign(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};

function getNodeWidth(node) {
    var nodeStyles = window.getComputedStyle(node);
    var width = node.offsetWidth;
    var borderLeftWidth = parseFloat(nodeStyles.borderLeftWidth);
    var borderRightWidth = parseFloat(nodeStyles.borderRightWidth);
    var paddingLeft = parseFloat(nodeStyles.paddingLeft);
    var paddingRight = parseFloat(nodeStyles.paddingRight);
    return width - borderRightWidth - borderLeftWidth - paddingLeft - paddingRight;
}

var styles = {
    main: {
        display: 'inline-block',
        whiteSpace: 'nowrap',
        msTransformOrigin: '0 50%',
        WebkitTransformOrigin: '0 50%',
        OTransformOrigin: '0 50%',
        MozTransformOrigin: '0 50%',
        transformOrigin: '0 50%',
    },
    animate: {
        // msTransition: '-ms-transform 400ms',
        WebkitTransition: '-webkit-transform 400ms',
        OTransition: '-o-transform 400ms',
        MozTransition: '-moz-transform 400ms',
        transition: 'transform 400ms',
    },
};
var ReactDynamicFont = /** @class */ (function (_super) {
    __extends(ReactDynamicFont, _super);
    function ReactDynamicFont() {
        var _this = _super !== null && _super.apply(this, arguments) || this;
        _this.state = {
            scale: 1,
        };
        _this.spanRef = createRef();
        _this.getMaxWidth = function () { return getNodeWidth(_this.spanRef.current.parentElement); };
        _this.getCurrentWidth = function () { return getNodeWidth(_this.spanRef.current); };
        _this.retryTimmer = null;
        _this.timesOfRetryGetWidth = 0;
        _this.fixWidth = function () {
            var maxWidth = _this.getMaxWidth();
            var currentWidth = _this.getCurrentWidth();
            if (currentWidth <= 0) {
                _this.setRetryTimmer();
            }
            else {
                _this.timesOfRetryGetWidth = 0;
                if (currentWidth > maxWidth) {
                    _this.setState({ scale: maxWidth / currentWidth });
                }
                else {
                    _this.setState({ scale: 1 });
                }
            }
        };
        return _this;
    }
    ReactDynamicFont.prototype.componentDidMount = function () {
        if (this.props.content && this.props.content.length) {
            this.fixWidth();
        }
    };
    ReactDynamicFont.prototype.componentDidUpdate = function (prevProps) {
        if (prevProps.content !== this.props.content && (this.props.content || '').length) {
            this.fixWidth();
        }
    };
    ReactDynamicFont.prototype.setRetryTimmer = function () {
        if (this.retryTimmer != null) {
            clearTimeout(this.retryTimmer);
            this.retryTimmer = null;
        }
        if (this.timesOfRetryGetWidth <= ReactDynamicFont.maxRetryTimes) {
            this.retryTimmer = window.setTimeout(this.fixWidth, ReactDynamicFont.retryDelayMillisecond);
        }
    };
    ReactDynamicFont.prototype.render = function () {
        var scaleStyle;
        if (this.state.scale === 1) {
            scaleStyle = undefined;
        }
        else {
            var transformValue = "scale(" + this.state.scale + ", " + this.state.scale + ")";
            scaleStyle = {
                msTransform: transformValue,
                WebkitTransform: transformValue,
                OTransform: transformValue,
                MozTransform: transformValue,
                transform: transformValue,
            };
        }
        var finalStyle = __assign({}, styles.main, ((this.props.smooth != null ? this.props.smooth : false) ? styles.animate : undefined), scaleStyle);
        return (createElement("span", { style: finalStyle, ref: this.spanRef }, this.props.content));
    };
    ReactDynamicFont.retryDelayMillisecond = 300;
    ReactDynamicFont.maxRetryTimes = 5;
    return ReactDynamicFont;
}(Component));

export default ReactDynamicFont;