react-form-upload-image-resize/build/index.js

React component for form file upload input to easy convert uploaded image to base64 and resize.

module.exports =
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/* 0 */
/***/ (function(module, exports) {

module.exports = require("react");

/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


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

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = __webpack_require__(0);

var _react2 = _interopRequireDefault(_react);

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

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var ImageUploadResizer = function (_Component) {
    _inherits(ImageUploadResizer, _Component);

    function ImageUploadResizer() {
        _classCallCheck(this, ImageUploadResizer);

        return _possibleConstructorReturn(this, (ImageUploadResizer.__proto__ || Object.getPrototypeOf(ImageUploadResizer)).apply(this, arguments));
    }

    _createClass(ImageUploadResizer, [{
        key: 'storeImage',
        value: function storeImage(e) {
            var files = Array.from(e.target.files);

            if (!files[0].type.match('image.*')) {
                console.log('bad format file');
                return;
            }

            var props = this.props;

            var fileReader = new FileReader();
            fileReader.readAsDataURL(files[0]);

            fileReader.onload = function (e) {

                var tempImg = new Image();
                tempImg.src = e.target.result;
                tempImg.onload = function (e) {

                    var MAX_WIDTH = props.width ? parseInt(props.width, 10) : 200;
                    var MAX_HEIGHT = props.height ? parseInt(props.height, 10) : 200;
                    var tempW = tempImg.width;
                    var tempH = tempImg.height;
                    if (tempW > tempH) {
                        if (tempW > MAX_WIDTH) {
                            tempH *= MAX_WIDTH / tempW;
                            tempW = MAX_WIDTH;
                        }
                    } else {
                        if (tempH > MAX_HEIGHT) {
                            tempW *= MAX_HEIGHT / tempH;
                            tempH = MAX_HEIGHT;
                        }
                    }
                    var canvas = document.createElement('canvas');
                    canvas.width = tempW;
                    canvas.height = tempH;
                    var ctx = canvas.getContext("2d");
                    ctx.drawImage(this, 0, 0, tempW, tempH);
                    var dataURL = canvas.toDataURL("image/jpeg");

                    props.change(dataURL);
                };
            };
        }
    }, {
        key: 'render',
        value: function render() {
            var _this2 = this;

            var name = this.props.name ? this.props.name : 'image';
            var id = this.props.id ? this.props.id : 'iur_image';
            var style = this.props.style ? this.props.style : null;
            var className = this.props.classes ? this.props.classes : null;
            return _react2.default.createElement('input', { type: 'file', name: name, id: id, onChange: function onChange(e) {
                    return _this2.storeImage(e);
                }, style: style, className: className });
        }
    }]);

    return ImageUploadResizer;
}(_react.Component);

exports.default = ImageUploadResizer;

/***/ })
/******/ ]);