all files / pdfviewer/base/ pdfviewer-utlis.js

24.34% Statements 55/226
5.52% Branches 8/145
21.74% Functions 10/46
30.22% Lines 55/182
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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.isHexRGBAAndTransparent = function (color) {
            var hexRGBARegex = /^#([A-Fa-f0-9]{8})$/;
            if (!hexRGBARegex.test(color)) {
                return false;
            }
            var alphaHex = color.slice(-2);
            var alphaDecimal = parseInt(alphaHex, 16);
            return alphaDecimal === 0;
        };
        PdfViewerUtils.setTransparencyToHex = function (color) {
            if (color.includes('#')) {
                if (color.length > 8 && color !== '#00000000') {
                    color = color.slice(0, -2) + '60';
                }
                else {
                    color += '60';
                }
            }
            return color;
        };
        PdfViewerUtils.removeAlphaValueFromHex = function (color) {
            if (color.includes('#')) {
                if (color.length > 8) {
                    color = color.slice(0, -2);
                }
            }
            return color;
        };
        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;
    var PdfViewerSessionStorage = (function () {
        function PdfViewerSessionStorage(enableLocalStorage) {
            this.localStorage = {};
            this.enableLocalStorage = true;
            this.documentId = '';
            this.enableLocalStorage = enableLocalStorage;
        }
        PdfViewerSessionStorage.prototype.setItem = function (key, value) {
            Iif (this.enableLocalStorage) {
                this.localStorage["" + key] = value;
            }
            else {
                window.sessionStorage.setItem(key, value);
            }
        };
        PdfViewerSessionStorage.prototype.getItem = function (key) {
            Iif (this.enableLocalStorage) {
                return (key in this.localStorage) ? this.localStorage["" + key] : null;
            }
            else {
                return window.sessionStorage.getItem(key);
            }
        };
        PdfViewerSessionStorage.prototype.removeItem = function (key) {
            Iif (this.enableLocalStorage) {
                delete this.localStorage["" + key];
            }
            else {
                window.sessionStorage.removeItem(key);
            }
        };
        PdfViewerSessionStorage.prototype.getSessionLength = function () {
            if (this.enableLocalStorage) {
                return Object.keys(this.localStorage).length;
            }
            else {
                return window.sessionStorage.length;
            }
        };
        PdfViewerSessionStorage.prototype.getKey = function (index) {
            if (this.enableLocalStorage) {
                var keys = Object.keys(this.localStorage);
                return keys[parseInt(index.toString(), 10)] || null;
            }
            else {
                return window.sessionStorage.key(index);
            }
        };
        PdfViewerSessionStorage.prototype.getWindowSessionStorageSize = function () {
            return Math.round(JSON.stringify(window.sessionStorage).length / 1024);
        };
        PdfViewerSessionStorage.prototype.migrateToLocalStorage = function (enableLocalStorage) {
            this.enableLocalStorage = enableLocalStorage;
            if (this.enableLocalStorage) {
                var removingItems = this.getRemovingItems();
                for (var i = 0; i < removingItems.length; i++) {
                    var key = removingItems[parseInt(i.toString(), 10)];
                    if (key) {
                        var value = window.sessionStorage.getItem(key);
                        if (!ej2_base_1.isNullOrUndefined(value) && this.documentId !== '' && key.indexOf(this.documentId) !== -1) {
                            this.localStorage["" + key] = value;
                            window.sessionStorage.removeItem(key);
                        }
                    }
                }
                removingItems = null;
            }
        };
        PdfViewerSessionStorage.prototype.clear = function () {
            Iif (this.enableLocalStorage) {
                this.localStorage = {};
            }
            else {
                var removingItems = this.getRemovingItems();
                for (var i = 0; i < removingItems.length; i++) {
                    var key = removingItems[parseInt(i.toString(), 10)];
                    if (key.indexOf('Sync_PdfViewer_') !== -1) {
                        window.sessionStorage.removeItem(key);
                    }
                }
                removingItems = null;
            }
        };
        PdfViewerSessionStorage.prototype.getRemovingItems = function () {
            var keysToProcess = [];
            for (var i = 0; i < window.sessionStorage.length; i++) {
                var key = window.sessionStorage.key(i);
                if (key) {
                    keysToProcess.push(key);
                }
            }
            return keysToProcess;
        };
        return PdfViewerSessionStorage;
    }());
    exports.PdfViewerSessionStorage = PdfViewerSessionStorage;
});