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136 lines
3.6 KiB
136 lines
3.6 KiB
"use strict";
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var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.T = T;
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exports.fileToObject = fileToObject;
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exports.getFileItem = getFileItem;
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exports.removeFileItem = removeFileItem;
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exports.previewImage = previewImage;
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exports.isImageUrl = void 0;
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var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
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function T() {
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return true;
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} // Fix IE file.status problem
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// via coping a new Object
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function fileToObject(file) {
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return (0, _extends2["default"])((0, _extends2["default"])({}, file), {
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lastModified: file.lastModified,
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lastModifiedDate: file.lastModifiedDate,
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name: file.name,
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size: file.size,
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type: file.type,
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uid: file.uid,
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percent: 0,
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originFileObj: file
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});
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}
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function getFileItem(file, fileList) {
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var matchKey = file.uid !== undefined ? 'uid' : 'name';
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return fileList.filter(function (item) {
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return item[matchKey] === file[matchKey];
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})[0];
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}
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function removeFileItem(file, fileList) {
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var matchKey = file.uid !== undefined ? 'uid' : 'name';
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var removed = fileList.filter(function (item) {
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return item[matchKey] !== file[matchKey];
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});
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if (removed.length === fileList.length) {
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return null;
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}
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return removed;
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} // ==================== Default Image Preview ====================
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var extname = function extname() {
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var url = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
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var temp = url.split('/');
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var filename = temp[temp.length - 1];
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var filenameWithoutSuffix = filename.split(/#|\?/)[0];
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return (/\.[^./\\]*$/.exec(filenameWithoutSuffix) || [''])[0];
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};
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var isImageFileType = function isImageFileType(type) {
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return type.indexOf('image/') === 0;
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};
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var isImageUrl = function isImageUrl(file) {
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if (file.type && !file.thumbUrl) {
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return isImageFileType(file.type);
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}
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var url = file.thumbUrl || file.url;
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var extension = extname(url);
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if (/^data:image\//.test(url) || /(webp|svg|png|gif|jpg|jpeg|jfif|bmp|dpg|ico)$/i.test(extension)) {
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return true;
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}
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if (/^data:/.test(url)) {
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// other file types of base64
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return false;
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}
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if (extension) {
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// other file types which have extension
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return false;
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}
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return true;
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};
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exports.isImageUrl = isImageUrl;
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var MEASURE_SIZE = 200;
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function previewImage(file) {
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return new Promise(function (resolve) {
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if (!file.type || !isImageFileType(file.type)) {
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resolve('');
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return;
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}
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var canvas = document.createElement('canvas');
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canvas.width = MEASURE_SIZE;
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canvas.height = MEASURE_SIZE;
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canvas.style.cssText = "position: fixed; left: 0; top: 0; width: ".concat(MEASURE_SIZE, "px; height: ").concat(MEASURE_SIZE, "px; z-index: 9999; display: none;");
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document.body.appendChild(canvas);
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var ctx = canvas.getContext('2d');
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var img = new Image();
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img.onload = function () {
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var width = img.width,
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height = img.height;
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var drawWidth = MEASURE_SIZE;
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var drawHeight = MEASURE_SIZE;
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var offsetX = 0;
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var offsetY = 0;
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if (width < height) {
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drawHeight = height * (MEASURE_SIZE / width);
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offsetY = -(drawHeight - drawWidth) / 2;
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} else {
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drawWidth = width * (MEASURE_SIZE / height);
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offsetX = -(drawWidth - drawHeight) / 2;
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}
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ctx.drawImage(img, offsetX, offsetY, drawWidth, drawHeight);
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var dataURL = canvas.toDataURL();
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document.body.removeChild(canvas);
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resolve(dataURL);
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};
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img.src = window.URL.createObjectURL(file);
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});
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} |