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| var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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) : new P(function (resolve) { resolve(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 (_) 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 };
}
};
define(["require", "exports", "@syncfusion/ej2-base", "@syncfusion/ej2-pdf"], function (require, exports, ej2_base_1, ej2_pdf_1) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var PdfViewerUtils = (function () {
function PdfViewerUtils() {
}
PdfViewerUtils.isSupportedFont = function (text, font) {
try {
if (!ej2_base_1.isNullOrUndefined(text) && !ej2_base_1.isNullOrUndefined(font)) {
for (var i = 0; i < text.length; i++) {
var ch = text[parseInt(i.toString(), 10)];
font._fontInternal._ttfReader._getGlyph(ch);
if (!font._fontInternal._ttfReader._isFontPresent) {
return font._fontInternal._ttfReader._isFontPresent;
}
}
return true;
}
}
catch (e) {
return false;
}
return false;
};
PdfViewerUtils.processFontStream = function (fontStream) {
return fontStream instanceof Uint8Array ? this.convertByteArrayToBase64(fontStream) : fontStream;
};
PdfViewerUtils.fetchCustomFonts = function (customFonts, url) {
var _this = this;
var fontCollection = {};
var fontPromises = customFonts.map(function (font) {
var fontPath;
if (font.startsWith('http://') || font.startsWith('https://')) {
fontPath = font;
}
else {
fontPath = url + "/" + font;
}
var parts = fontPath.split('/');
var fileName = parts.pop() || '';
if (Object.keys(fontCollection).indexOf(fileName) === -1) {
return _this.fetchData(fontPath).then(function (fontData) { return __awaiter(_this, void 0, void 0, function () {
var fallbackFontPath;
return __generator(this, function (_a) {
if (fontData) {
fontCollection[parts.indexOf('fallbackfonts') !== -1 ?
'fallbackfonts_' + fileName.toLowerCase() : fileName.toLowerCase()] = fontData;
}
else {
fallbackFontPath = url + "/fallbackfonts/" + font;
return [2, this.fetchData(fallbackFontPath).then(function (fallbackData) {
if (fallbackData) {
fontCollection['fallbackfonts_' + fileName.toLowerCase()] = fallbackData;
}
})];
}
return [2];
});
}); });
}
return null;
});
return Promise.all(fontPromises).then(function () { return fontCollection; });
};
PdfViewerUtils.tryGetFontFromKeys = function (fontCollection, text, fontSize, fontStyle) {
var keys = Object.keys(fontCollection);
for (var _i = 0, keys_1 = keys; _i < keys_1.length; _i++) {
var key = keys_1[_i];
var fontStream = this.processFontStream(fontCollection["" + key]);
var font = new ej2_pdf_1.PdfTrueTypeFont(fontStream, this.convertPixelToPoint(fontSize), fontStyle ? fontStyle : ej2_pdf_1.PdfFontStyle.regular);
var glyphPresent = this.isSupportedFont(text, font);
if (glyphPresent) {
return font;
}
font = null;
fontStream = null;
}
return null;
};
PdfViewerUtils.getFontKey = function (fallbackFontCollection, fontFamily) {
if (fallbackFontCollection["" + fontFamily] || fallbackFontCollection[fontFamily + '.ttf']) {
return fallbackFontCollection["" + fontFamily] ? fontFamily : fontFamily + '.ttf';
}
var font = fontFamily.endsWith('.ttf') ? fontFamily : fontFamily + '.ttf';
for (var key in fallbackFontCollection) {
if (key.toLowerCase().endsWith(font.toLowerCase())) {
return key;
}
}
return undefined;
};
PdfViewerUtils.fetchData = function (filePath) {
return fetch(filePath)
.then(function (response) {
if (!response.ok) {
return null;
}
return response.arrayBuffer().then(function (buffer) { return new Uint8Array(buffer); });
})
.catch(function () { return null; });
};
PdfViewerUtils.convertByteArrayToBase64 = function (byteArray) {
var binaryString = '';
var byteArrayLength = byteArray.byteLength;
for (var i = 0; i < byteArrayLength; i++) {
binaryString += String.fromCharCode(byteArray[parseInt(i.toString(), 10)]);
}
return btoa(binaryString);
};
PdfViewerUtils.convertPixelToPoint = function (value) {
return (value * 72 / 96);
};
return PdfViewerUtils;
}());
exports.PdfViewerUtils = PdfViewerUtils;
});
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