add hw2

node_modules/html-to-image/lib/embed-resources.js

@@ -0,0 +1,127 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __generator = (this && this.__generator) || function (thisArg, body) {
+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
+    function verb(n) { return function (v) { return step([n, v]); }; }
+    function step(op) {
+        if (f) throw new TypeError("Generator is already executing.");
+        while (g && (g = 0, op[0] && (_ = 0)), _) try {
+            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
+            if (y = 0, t) op = [op[0] & 2, t.value];
+            switch (op[0]) {
+                case 0: case 1: t = op; break;
+                case 4: _.label++; return { value: op[1], done: false };
+                case 5: _.label++; y = op[1]; op = [0]; continue;
+                case 7: op = _.ops.pop(); _.trys.pop(); continue;
+                default:
+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
+                    if (t[2]) _.ops.pop();
+                    _.trys.pop(); continue;
+            }
+            op = body.call(thisArg, _);
+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
+    }
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.embedResources = exports.shouldEmbed = exports.embed = exports.parseURLs = void 0;
+var util_1 = require("./util");
+var mimes_1 = require("./mimes");
+var dataurl_1 = require("./dataurl");
+var URL_REGEX = /url\((['"]?)([^'"]+?)\1\)/g;
+var URL_WITH_FORMAT_REGEX = /url\([^)]+\)\s*format\((["']?)([^"']+)\1\)/g;
+var FONT_SRC_REGEX = /src:\s*(?:url\([^)]+\)\s*format\([^)]+\)[,;]\s*)+/g;
+function toRegex(url) {
+    // eslint-disable-next-line no-useless-escape
+    var escaped = url.replace(/([.*+?^${}()|\[\]\/\\])/g, '\\$1');
+    return new RegExp("(url\\(['\"]?)(".concat(escaped, ")(['\"]?\\))"), 'g');
+}
+function parseURLs(cssText) {
+    var urls = [];
+    cssText.replace(URL_REGEX, function (raw, quotation, url) {
+        urls.push(url);
+        return raw;
+    });
+    return urls.filter(function (url) { return !(0, dataurl_1.isDataUrl)(url); });
+}
+exports.parseURLs = parseURLs;
+function embed(cssText, resourceURL, baseURL, options, getContentFromUrl) {
+    return __awaiter(this, void 0, void 0, function () {
+        var resolvedURL, contentType, dataURL, content, error_1;
+        return __generator(this, function (_a) {
+            switch (_a.label) {
+                case 0:
+                    _a.trys.push([0, 5, , 6]);
+                    resolvedURL = baseURL ? (0, util_1.resolveUrl)(resourceURL, baseURL) : resourceURL;
+                    contentType = (0, mimes_1.getMimeType)(resourceURL);
+                    dataURL = void 0;
+                    if (!getContentFromUrl) return [3 /*break*/, 2];
+                    return [4 /*yield*/, getContentFromUrl(resolvedURL)];
+                case 1:
+                    content = _a.sent();
+                    dataURL = (0, dataurl_1.makeDataUrl)(content, contentType);
+                    return [3 /*break*/, 4];
+                case 2: return [4 /*yield*/, (0, dataurl_1.resourceToDataURL)(resolvedURL, contentType, options)];
+                case 3:
+                    dataURL = _a.sent();
+                    _a.label = 4;
+                case 4: return [2 /*return*/, cssText.replace(toRegex(resourceURL), "$1".concat(dataURL, "$3"))];
+                case 5:
+                    error_1 = _a.sent();
+                    return [3 /*break*/, 6];
+                case 6: return [2 /*return*/, cssText];
+            }
+        });
+    });
+}
+exports.embed = embed;
+function filterPreferredFontFormat(str, _a) {
+    var preferredFontFormat = _a.preferredFontFormat;
+    return !preferredFontFormat
+        ? str
+        : str.replace(FONT_SRC_REGEX, function (match) {
+            // eslint-disable-next-line no-constant-condition
+            while (true) {
+                var _a = URL_WITH_FORMAT_REGEX.exec(match) || [], src = _a[0], format = _a[2];
+                if (!format) {
+                    return '';
+                }
+                if (format === preferredFontFormat) {
+                    return "src: ".concat(src, ";");
+                }
+            }
+        });
+}
+function shouldEmbed(url) {
+    return url.search(URL_REGEX) !== -1;
+}
+exports.shouldEmbed = shouldEmbed;
+function embedResources(cssText, baseUrl, options) {
+    return __awaiter(this, void 0, void 0, function () {
+        var filteredCSSText, urls;
+        return __generator(this, function (_a) {
+            if (!shouldEmbed(cssText)) {
+                return [2 /*return*/, cssText];
+            }
+            filteredCSSText = filterPreferredFontFormat(cssText, options);
+            urls = parseURLs(filteredCSSText);
+            return [2 /*return*/, urls.reduce(function (deferred, url) {
+                    return deferred.then(function (css) { return embed(css, url, baseUrl, options); });
+                }, Promise.resolve(filteredCSSText))];
+        });
+    });
+}
+exports.embedResources = embedResources;
+//# sourceMappingURL=embed-resources.js.map