How to use _isSupportCanvas method in wpt

Best JavaScript code snippet using wpt

QRCode.ts

Source:QRCode.ts

...14import {DrawingHack} from "./DrawerHack.js";15import {DrawingCanvas} from "./DrawingCanvas.js";16import {DrawingSVG} from "./DrawingSVG.js";17import {Render} from "./IDrawer";18function _isSupportCanvas(): boolean {19    return typeof CanvasRenderingContext2D != "undefined";20}21/**22 * Get the type by string length23 *24 * @private25 * @param {String} sText26 * @param {Number} nCorrectLevel27 * @return {Number} type28 */29function _getTypeNumber(sText: string, nCorrectLevel: number): number {30    let nType = 1;31    const length = _getUTF8Length(sText);32    for (var i = 0, len = QRCodeLimitLength.length; i <= len; i++) {33        var nLimit = 0;34        switch (nCorrectLevel) {35            case QRErrorCorrectLevel.L :36                nLimit = QRCodeLimitLength[i][0];37                break;38            case QRErrorCorrectLevel.M :39                nLimit = QRCodeLimitLength[i][1];40                break;41            case QRErrorCorrectLevel.Q :42                nLimit = QRCodeLimitLength[i][2];43                break;44            case QRErrorCorrectLevel.H :45                nLimit = QRCodeLimitLength[i][3];46                break;47        }48        if (length <= nLimit) {49            break;50        } else {51            nType++;52        }53    }54    if (nType > QRCodeLimitLength.length) {55        throw new Error("Too long data");56    }57    return nType;58}59function _getUTF8Length(sText) {60    var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a');61    return replacedText.length + (replacedText.length != sText ? 3 : 0);62}63export interface QROptions {64    text: string,65    width?: number,66    height?: number,67    typeNumber?: number,68    colorDark?: string,69    colorLight?: string,70    correctLevel?: number,71    useSVG?: boolean,72}73/**74 * Quick Response (QR) codes are two-dimensional (2-D) barcodes that can75 * contain information such as URL links (e.g. a link to YouTube video,76 * website link) and text (e.g. contact details, product details). These77 * square pattern codes consist of black modules on a white background.78 * QR code generator is software that stores data (e.g. URL link, text,79 * Google maps location) into a QR code. This encoded data can be decoded80 * by scanning the QR code symbol with a mobile device that is equipped81 * with a camera and a QR code reader software. QR codes have a number82 * of purposes; they are mostly used in manufacturing (e.g. product83 * traceability, process control, inventory and equipment management),84 * warehousing and logistics (e.g. item tracking), retailing (e.g. sales85 * management), healthcare (e.g. medical records management, patient86 * identification, equipment and device tracking), transportation (e.g.87 * ticketing and boarding passes), office automation (e.g. document88 * management), marketing and advertising (e.g. mobile marketing,89 * electronic tickets, coupons, payments).90 *91 * Quick Response (QR) codes are two-dimensional (2-92 * D) barcodes that can contain all types of data, such as93 * numeric and alphabetic characters, Kanji, Kana, Hiragana,94 * symbols, binary and control codes. Up to 7,089 characters95 * can be encoded in one code. These square pattern codes96 * consist of black modules on a white background.97 *98 * The main features of QR codes are: high capacity data99 * storage, small printout size, Kanji and Kana character set100 * capability, dirt and damage resistant (QR codes have an101 * error correction capability), readable from any direction in102 * 360 degrees and with a structured appending feature. One103 * QR code can be divided into up to 16 smaller QR104 * symbols. Information stored in multiple QR code symbols105 * can be reconstructed as a single data symbol.106 *107 * @note Version of QR Code 3108 */109export class QRCode {110    private options: QROptions = {111        width: 256,112        height: 256,113        typeNumber: 4,114        colorDark: "#000000",115        colorLight: "#ffffff",116        correctLevel: QRErrorCorrectLevel.H,117        useSVG: false,118        text: "QRCode",119    };120    private readonly element: HTMLElement121    private render: Render122    private model: QRCodeModel123    /**124     * @class QRCode125     * @constructor126     * @example127     * new QRCode(document.getElementById("test"), "http://jindo.dev.naver.com/collie");128     *129     * @example130     * var oQRCode = new QRCode("test", {131     *    text : "http://naver.com",132     *    width : 128,133     *    height : 128134     * });135     *136     * oQRCode.clear(); // Clear the QRCode.137     * oQRCode.makeCode("http://map.naver.com"); // Re-create the QRCode.138     *139     * @param {HTMLElement|String} element target element or 'id' attribute of element.140     * @param {Object|String} options The options to render this QR Code141     */142    constructor(element: HTMLElement, options: Readonly<QROptions>) {143        // Overwrites options144        this.options = {...options};145        this.element = element;146        if (this.options.useSVG) {147            this.render = new DrawingSVG(this.element, this.options);148        } else {149            if (_isSupportCanvas()) {150                this.render = new DrawingCanvas(this.element, this.options);151            } else {152                this.render = new DrawingHack(this.element, this.options);153            }154        }155        this.makeCode(this.options.text);156    }157    /**158     * Make the QRCode159     *160     * @param {String} sText link data161     */162    public makeCode(sText: Readonly<string>): void {163        this.model = new QRCodeModel(_getTypeNumber(sText, this.options.correctLevel), this.options.correctLevel);...

utils.ts

Source:utils.ts

1namespace TypeScript.QRCode {2    export class config {3        public static get Drawing() {4            return config.useSVG ? canvas.svgDrawer : (!_isSupportCanvas() ? canvas.DOMDrawer : canvas.CanvasDrawer)5        }6        public static get useSVG() {7            return document.documentElement.tagName.toLowerCase() === "svg"8        };9    }10    export function _isSupportCanvas() {11        return typeof CanvasRenderingContext2D != "undefined";12    }13    // android 2.x doesn't support Data-URI spec14    export function _getAndroid() {15        var android = false;16        var sAgent = navigator.userAgent;17        if (/android/i.test(sAgent)) { // android18            android = true;19            var aMat = sAgent.toString().match(/android ([0-9]\.[0-9])/i);20            if (aMat && aMat[1]) {21                android = parseFloat(aMat[1]);22            }23        }24        return android;...

Using AI Code Generation

1var wptools = require('wptools');2var isSupportCanvas = wptools._isSupportCanvas();3if (isSupportCanvas) {4    console.log('Canvas is supported');5} else {6    console.log('Canvas is not supported');7}

Using AI Code Generation

1var wptoolkit = require('wptoolkit');2var isSupportCanvas = wptoolkit._isSupportCanvas();3console.log('isSupportCanvas: ' + isSupportCanvas);4var wptoolkit = require('wptoolkit');5var isSupportWebGL = wptoolkit._isSupportWebGL();6console.log('isSupportWebGL: ' + isSupportWebGL);7var wptoolkit = require('wptoolkit');8var isSupportWebAudio = wptoolkit._isSupportWebAudio();9console.log('isSupportWebAudio: ' + isSupportWebAudio);10var wptoolkit = require('wptoolkit');11var isSupportWebGL2 = wptoolkit._isSupportWebGL2();12console.log('isSupportWebGL2: ' + isSupportWebGL2);13var wptoolkit = require('wptoolkit');14var isSupportWebWorker = wptoolkit._isSupportWebWorker();15console.log('isSupportWebWorker: ' + isSupportWebWorker);

Using AI Code Generation

1var wptoolkit = require('wptoolkit');2var isSupportCanvas = wptoolkit.isSupportCanvas();3console.log(isSupportCanvas);4var wptoolkit = require('wptoolkit');5var isSupportCanvas = wptoolkit.isSupportCanvas();6console.log(isSupportCanvas);7var wptoolkit = require('wptoolkit');8var isSupportCanvas = wptoolkit.isSupportCanvas();9console.log(isSupportCanvas);10var wptoolkit = require('wptoolkit');11var isSupportCanvas = wptoolkit.isSupportCanvas();12console.log(isSupportCanvas);13var wptoolkit = require('wptoolkit');14var isSupportCanvas = wptoolkit.isSupportCanvas();15console.log(isSupportCanvas);16var wptoolkit = require('wptoolkit');17var isSupportCanvas = wptoolkit.isSupportCanvas();18console.log(isSupportCanvas);19var wptoolkit = require('wptoolkit');20var isSupportCanvas = wptoolkit.isSupportCanvas();21console.log(isSupportCanvas);22var wptoolkit = require('wptoolkit');23var isSupportCanvas = wptoolkit.isSupportCanvas();24console.log(isSupportCanvas);25var wptoolkit = require('wptoolkit');

Using AI Code Generation

1if (wpt._isSupportCanvas()) {2}3else {4}5if (wpt._isSupportCanvas()) {6}7else {8}9if (wpt._isSupportCanvas()) {10}11else {12}13if (wpt._isSupportCanvas()) {14}15else {16}17if (wpt._isSupportCanvas()) {18}19else {20}21if (wpt._isSupportCanvas()) {22}23else {24}25if (wpt._isSupportCanvas()) {26}27else {28}29if (wpt._isSupportCanvas()) {30}31else {32}33if (wpt._isSupportCanvas()) {34}35else {36}37if (wpt._isSupportCanvas()) {

Using AI Code Generation

1var tabbar = new WPTabbar();2if (tabbar._isSupportCanvas()) {3} else {4}5WPTabbar.prototype._isSupportCanvas = function () {6    var elem = document.createElement('canvas');7    return !!(elem.getContext && elem.getContext('2d'));8};9WPTabbar.prototype._isSupportCanvas = function () {10    var elem = document.createElement('canvas');11    return !!(elem.getContext && elem.getContext('2d'));12};13WPTabbar.prototype._isSupportCanvas = function () {14    var elem = document.createElement('canvas');15    return !!(elem.getContext && elem.getContext('2d'));16};17WPTabbar.prototype._isSupportCanvas = function () {18    var elem = document.createElement('canvas');19    return !!(elem.getContext && elem.getContext('2d'));20};21WPTabbar.prototype._isSupportCanvas = function () {22    var elem = document.createElement('canvas');23    return !!(elem.getContext && elem.getContext('2d'));24};25WPTabbar.prototype._isSupportCanvas = function () {26    var elem = document.createElement('canvas');27    return !!(elem.getContext && elem.getContext('2d'));28};29WPTabbar.prototype._isSupportCanvas = function () {30    var elem = document.createElement('canvas');31    return !!(elem.getContext && elem.getContext('2d'));32};33WPTabbar.prototype._isSupportCanvas = function () {34    var elem = document.createElement('canvas');35    return !!(elem.getContext && elem.getContext('2d'));36};37WPTabbar.prototype._isSupportCanvas = function () {

Using AI Code Generation

1var isSupportCanvas = wptext2d._isSupportCanvas();2if (isSupportCanvas) {3} else {4}5var canvas = document.getElementById("canvas");6var context = canvas.getContext("2d");7var wptext2d = new wptext2d(context);8wptext2d.drawText("Hello World", 100, 100);

Using AI Code Generation

1if(wpt._isSupportCanvas()){2}3Syntax: wpt._getCanvasContext(canvasId)4var canvas = document.getElementById("canvas");5var context = wpt._getCanvasContext(canvas);6if(context){7}8Syntax: wpt._getCanvasData(canvasId)9var canvas = document.getElementById("canvas");10var data = wpt._getCanvasData(canvas);11if(data){

Using AI Code Generation

1wptools._isSupportCan}s = function() {2    return !! document.ceateElement('canvas').getContext;3};4wptools.createCanvas = function() {5    if (wptools._isSupportCanvas()) {6        return document.createElement('canvas');7    } else {8        return G_vmlCanvasManager.initElement(document.createElement('canvas'));9    }10};11var canvas = wptools.createCanvas();12document.body.appendChild(canvas);13Syntax: wpt._getCanvasImageData(canvasId)14var canvas = document.getElementById("canvas");15var data = wpt._getCanvasImageData(canvas);16if(data){17}18Syntax: wpt._getCanvasImage(canvasId)19var canvas = document.getElementById("canvas");20var data = wpt._getCanvasImage(canvas);21if(data){22}23Syntax: wpt._getCanvasImageBase64(canvasId)

Using AI Code Generation

1wptools._isSupportCanvas = function() {2    return !! document.createElement('canvas').getContext;3};4wptools.createCanvas = function() {5    if (wptools._isSupportCanvas()) {6        return document.createElement('canvas');7    } else {8        return G_vmlCanvasManager.initElement(document.createElement('canvas'));9    }10};11var canvas = wptools.createCanvas();12document.body.appendChild(canvas);

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