commit e6084bbbdccee3d700037b5f34ead386d649c470 Author: Tom Hubrecht Date: Wed Jan 24 20:17:20 2024 +0100 feat(www): Init diff --git a/README.md b/README.md new file mode 100644 index 0000000..ea41fd3 --- /dev/null +++ b/README.md @@ -0,0 +1,4 @@ +QR +== + +A simple application for creating qr codes. diff --git a/www/css/qr-dgnum.css b/www/css/qr-dgnum.css new file mode 100644 index 0000000..bfcfafe --- /dev/null +++ b/www/css/qr-dgnum.css @@ -0,0 +1,230 @@ +body { + align-items: stretch; + background-color: #f5f5f5; + color: #4a4a4a; + display: flex; + flex-direction: column; + font-family: BlinkMacSystemFont, -apple-system, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", Helvetica, Arial, sans-serif; + font-size: 1em; + font-weight: 400; + justify-content: space-between; + line-height: 1.5; + min-height: 100vh; + margin: 0 auto; + position: relative; + text-align: center; + width: auto; +} + +figure { + display: block; + height: 256px; + margin-left: 122px; + margin-right: 122px; + max-width: 256px; + position: relative; + margin-bottom: .75rem; +} + +img { + display: block; + height: auto; + max-width: 100%; + min-height: 256px; + min-width: 256px; + position: relative; +} + +a { + color: #485fc7; + cursor: pointer; + text-decoration: none; +} + +footer { + background-color: #fafafa; + display: block; + padding: 3rem 1.5rem 6rem; +} + +section { + margin: auto; + width: 500px; + padding-top: 2.5rem; + margin-bottom: 2.5rem; + display: block; +} + +h1 { + color: #363636; + font-size: 2rem; + font-weight: 600; + line-height: 1.125; + margin-bottom: 2.5rem; + margin-top: 0; +} + +form { + text-align: left; +} + +label { + color: #363636; + display: block; + font-size: 1rem; + font-weight: 700; + margin-bottom: .5em; +} + +input::placeholder { + color: rgba(54, 54, 54, .3); +} + +input:not(:last-child) { + margin-bottom: .75rem; +} + +input:hover, +select:hover { + border-color: #b5b5b5; +} + +input:active, +input:focus, +select:active, +select:focus { + border-color: #485fc7; + box-shadow: 0 0 0 .125em rgba(72, 95, 199, .25); + outline: 0; +} + +input, +select { + -moz-appearance: none; + -webkit-appearance: none; + align-items: center; + appearance: none; + background-color: #fff; + border-radius: 4px; + border: 1px solid #dbdbdb; + box-shadow: inset 0 .0625em .125em rgba(10, 10, 10, .05); + box-shadow: none; + box-sizing: border-box; + color: #363636; + display: inline-flex; + font-size: 1rem; + font-size: 1rem; + height: 2.5em; + justify-content: flex-start; + line-height: 1.5; + max-width: 100%; + padding-bottom: calc(.5em - 1px); + padding-left: calc(.75em - 1px); + padding-right: calc(.75em - 1px); + padding-top: calc(.5em - 1px); + position: relative; + vertical-align: top; + width: 100%; +} + +select { + cursor: pointer; + display: block; + font-size: 1em; + max-width: 100%; + outline: 0; + padding-right: 2.5em; + width: 100%; +} + +.select { + display: inline-block; + width: 100%; + position: relative; + vertical-align: top; +} + +.select::after { + border: 3px solid; + border-right: 0; + border-top: 0; + border-color: #485fc7; + border-radius: 2px; + right: 1.125em; + z-index: 4; + content: " "; + display: block; + height: .625em; + margin-top: -.4375em; + pointer-events: none; + position: absolute; + top: 50%; + transform: rotate(-45deg); + transform-origin: center; + width: .625em; +} + +.help { + display: block; + font-size: .75rem; + margin-top: .25rem; + margin-bottom: .75rem; +} + +button { + -moz-appearance: none; + -webkit-appearance: none; + align-items: center; + background-color: #fff; + border: 1px solid transparent; + border-color: #dbdbdb; + border-radius: 4px; + border-width: 1px; + box-shadow: none; + color: #363636; + cursor: pointer; + display: inline-flex; + font-size: 1rem; + height: 2.5em; + justify-content: center; + line-height: 1.5; + margin-top: 0; + margin-bottom: .5rem; + margin-left: .5rem; + margin-right: .5rem; + padding-bottom: calc(.5em - 1px); + padding-left: 1em; + padding-right: 1em; + padding-top: calc(.5em - 1px); + position: relative; + text-align: center; + user-select: none; + white-space: nowrap; +} + +button:hover { + border-color: #b5b5b5; + color: #363636; +} + +button:active { + border-color: #4a4a4a; + color: #363636; +} + +button:focus { + border-color: #485fc7; + color: #363636; +} + +button:focus:not(:active) { + box-shadow: 0 0 0 .125em rgba(72,95,199,.25); +} + +.buttons { + align-items: center; + display: flex; + flex-wrap: wrap; + justify-content: center; + margin-bottom: 1rem; +} diff --git a/www/css/qr-dgnum.min.css b/www/css/qr-dgnum.min.css new file mode 100644 index 0000000..7300d09 --- /dev/null +++ b/www/css/qr-dgnum.min.css @@ -0,0 +1 @@ +figure,footer,img,label,section{display:block}img,input,select{max-width:100%}.select,input,select{vertical-align:top;width:100%}a,button,select{cursor:pointer}body,button{text-align:center}body{align-items:stretch;background-color:#f5f5f5;color:#4a4a4a;display:flex;flex-direction:column;font-family:BlinkMacSystemFont,-apple-system,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Fira Sans","Droid Sans","Helvetica Neue",Helvetica,Arial,sans-serif;font-size:1em;font-weight:400;justify-content:space-between;line-height:1.5;min-height:100vh;margin:0 auto;position:relative;width:auto}button,input,select{align-items:center;background-color:#fff;display:inline-flex;height:2.5em;line-height:1.5;padding-bottom:calc(.5em - 1px);padding-top:calc(.5em - 1px);position:relative}.help,figure,input:not(:last-child){margin-bottom:.75rem}figure{height:256px;margin-left:122px;margin-right:122px;max-width:256px;position:relative}img{height:auto;min-height:256px;min-width:256px;position:relative}a{color:#485fc7;text-decoration:none}footer{background-color:#fafafa;padding:3rem 1.5rem 6rem}section{margin:auto auto 2.5rem;width:500px;padding-top:2.5rem}h1{color:#363636;font-size:2rem;font-weight:600;line-height:1.125;margin-bottom:2.5rem;margin-top:0}input,label,select{font-size:1rem;color:#363636}form{text-align:left}label{font-weight:700;margin-bottom:.5em}input::placeholder{color:rgba(54,54,54,.3)}input:hover,select:hover{border-color:#b5b5b5}input:active,input:focus,select:active,select:focus{border-color:#485fc7;box-shadow:0 0 0 .125em rgba(72,95,199,.25);outline:0}input,select{-moz-appearance:none;-webkit-appearance:none;appearance:none;border-radius:4px;border:1px solid #dbdbdb;box-shadow:inset 0 .0625em .125em rgba(10,10,10,.05);box-shadow:none;box-sizing:border-box;justify-content:flex-start;padding-left:calc(.75em - 1px);padding-right:calc(.75em - 1px)}select{display:block;font-size:1em;outline:0;padding-right:2.5em;width:100%}.select{display:inline-block;position:relative}.select::after{border:3px solid #485fc7;border-right:0;border-top:0;border-radius:2px;right:1.125em;z-index:4;content:" ";display:block;height:.625em;margin-top:-.4375em;pointer-events:none;position:absolute;top:50%;transform:rotate(-45deg);transform-origin:center;width:.625em}.help{display:block;font-size:.75rem;margin-top:.25rem}button{-moz-appearance:none;-webkit-appearance:none;border:1px solid #dbdbdb;border-radius:4px;box-shadow:none;color:#363636;font-size:1rem;justify-content:center;margin:0 .5rem .5rem;padding-left:1em;padding-right:1em;user-select:none;white-space:nowrap}button:hover{border-color:#b5b5b5;color:#363636}button:active{border-color:#4a4a4a;color:#363636}button:focus{border-color:#485fc7;color:#363636}button:focus:not(:active){box-shadow:0 0 0 .125em rgba(72,95,199,.25)}.buttons{align-items:center;display:flex;flex-wrap:wrap;justify-content:center;margin-bottom:1rem} diff --git a/www/favicon.ico b/www/favicon.ico new file mode 100644 index 0000000..619b2b6 Binary files /dev/null and b/www/favicon.ico differ diff --git a/www/index.html b/www/index.html new file mode 100644 index 0000000..339724c --- /dev/null +++ b/www/index.html @@ -0,0 +1,69 @@ + + + + + + + + + + + + + + + QR - DGNum + + + +
+

QR Code Generator

+ +
+ +
+ +
+ + +
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+ + + + + + + + + + +
+ +
+

The amount of data that can be recovered

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+ + + + + diff --git a/www/js/qr-dgnum.js b/www/js/qr-dgnum.js new file mode 100644 index 0000000..645d7da --- /dev/null +++ b/www/js/qr-dgnum.js @@ -0,0 +1,32 @@ +const $ = s => document.querySelector(s); +const n = s => $(`[name=${s}]`); + +const qr = new QRious({element: $('img'), size: 250}); + +const c = 'change'; +const w = (i, e, f) => i.addEventListener(e, f); + +['png', 'jpeg'].forEach(x => { + const e = n(x); + + w(e, 'click', () => { + const a = document.createElement('a'); + a.href = qr.toDataURL(`image/${x}`); + a.download = `qr-code.${x}`; + a.click(); + + setTimeout(() => a.remove(), 50); + }); +}); + +const a = (e, b) => { const i = n(b); w(i, e, () => { qr[b] = i.value || null; }); }; + +['background', 'backgroundAlpha', 'foreground', 'foregroundAlpha', 'level'].forEach(e => a(c, e)); + +a('input', 'value') + +const p = n('padding'); +w(p, c, () => { if (p.validity.valid) { qr.padding = p.value !== '' ? p.value : null; } }); + +const s = n('size'); +w(s, c, () => { if (s.validity.valid) { qr.size = s.value || null; } }); diff --git a/www/js/qr-dgnum.min.js b/www/js/qr-dgnum.min.js new file mode 100644 index 0000000..2e7381e --- /dev/null +++ b/www/js/qr-dgnum.min.js @@ -0,0 +1 @@ +const $=e=>document.querySelector(e),n=e=>$(`[name=${e}]`),qr=new QRious({element:$("img"),size:250}),c="change",w=(e,l,r)=>e.addEventListener(l,r);["png","jpeg"].forEach(e=>{let l=n(e);w(l,"click",()=>{let l=document.createElement("a");l.href=qr.toDataURL(`image/${e}`),l.download=`qr-code.${e}`,l.click(),setTimeout(()=>l.remove(),50)})});const a=(e,l)=>{let r=n(l);w(r,e,()=>{qr[l]=r.value||null})};["background","backgroundAlpha","foreground","foregroundAlpha","level"].forEach(e=>a(c,e)),a("input","value");const p=n("padding");w(p,c,()=>{p.validity.valid&&(qr.padding=""!==p.value?p.value:null)});const s=n("size");w(s,c,()=>{s.validity.valid&&(qr.size=s.value||null)}); diff --git a/www/js/qrious.js b/www/js/qrious.js new file mode 100644 index 0000000..3d2dd39 --- /dev/null +++ b/www/js/qrious.js @@ -0,0 +1,2360 @@ +/* + * QRious v4.0.2 + * Copyright (C) 2017 Alasdair Mercer + * Copyright (C) 2010 Tom Zerucha + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : + typeof define === 'function' && define.amd ? define(factory) : + (global.QRious = factory()); +}(this, (function () { 'use strict'; + + /* + * Copyright (C) 2017 Alasdair Mercer, !ninja + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + + /** + * A bare-bones constructor for surrogate prototype swapping. + * + * @private + * @constructor + */ + var Constructor = /* istanbul ignore next */ function() {}; + /** + * A reference to Object.prototype.hasOwnProperty. + * + * @private + * @type {Function} + */ + var hasOwnProperty = Object.prototype.hasOwnProperty; + /** + * A reference to Array.prototype.slice. + * + * @private + * @type {Function} + */ + var slice = Array.prototype.slice; + + /** + * Creates an object which inherits the given prototype. + * + * Optionally, the created object can be extended further with the specified properties. + * + * @param {Object} prototype - the prototype to be inherited by the created object + * @param {Object} [properties] - the optional properties to be extended by the created object + * @return {Object} The newly created object. + * @private + */ + function createObject(prototype, properties) { + var result; + /* istanbul ignore next */ + if (typeof Object.create === 'function') { + result = Object.create(prototype); + } else { + Constructor.prototype = prototype; + result = new Constructor(); + Constructor.prototype = null; + } + + if (properties) { + extendObject(true, result, properties); + } + + return result; + } + + /** + * Extends the constructor to which this method is associated with the prototype and/or + * statics provided. + * + * If name is provided, it will be used as the class name and can be accessed via a special + * class_ property on the child constructor, otherwise the class name of the super constructor will be used + * instead. The class name may also be used string representation for instances of the child constructor (via + * toString), but this is not applicable to the lite version of Nevis. + * + * If constructor is provided, it will be used as the constructor for the child, otherwise a simple + * constructor which only calls the super constructor will be used instead. + * + * The super constructor can be accessed via a special super_ property on the child constructor. + * + * @param {string} [name=this.class_] - the class name to be used for the child constructor + * @param {Function} [constructor] - the constructor for the child + * @param {Object} [prototype] - the prototype properties to be defined for the child + * @param {Object} [statics] - the static properties to be defined for the child + * @return {Function} The child constructor provided or the one created if none was given. + * @public + */ + function extend(name, constructor, prototype, statics) { + var superConstructor = this; + + if (typeof name !== 'string') { + statics = prototype; + prototype = constructor; + constructor = name; + name = null; + } + + if (typeof constructor !== 'function') { + statics = prototype; + prototype = constructor; + constructor = function() { + return superConstructor.apply(this, arguments); + }; + } + + extendObject(false, constructor, superConstructor, statics); + + constructor.prototype = createObject(superConstructor.prototype, prototype); + constructor.prototype.constructor = constructor; + + constructor.class_ = name || superConstructor.class_; + constructor.super_ = superConstructor; + + return constructor; + } + + /** + * Extends the specified target object with the properties in each of the sources provided. + * + * if any source is null it will be ignored. + * + * @param {boolean} own - true to only copy own properties from sources onto + * target; otherwise false + * @param {Object} target - the target object which should be extended + * @param {...Object} [sources] - the source objects whose properties are to be copied onto target + * @return {void} + * @private + */ + function extendObject(own, target, sources) { + sources = slice.call(arguments, 2); + + var property; + var source; + + for (var i = 0, length = sources.length; i < length; i++) { + source = sources[i]; + + for (property in source) { + if (!own || hasOwnProperty.call(source, property)) { + target[property] = source[property]; + } + } + } + } + + var extend_1 = extend; + + /** + * The base class from which all others should extend. + * + * @public + * @constructor + */ + function Nevis() {} + Nevis.class_ = 'Nevis'; + Nevis.super_ = Object; + + /** + * Extends the constructor to which this method is associated with the prototype and/or + * statics provided. + * + * If name is provided, it will be used as the class name and can be accessed via a special + * class_ property on the child constructor, otherwise the class name of the super constructor will be used + * instead. The class name may also be used string representation for instances of the child constructor (via + * toString), but this is not applicable to the lite version of Nevis. + * + * If constructor is provided, it will be used as the constructor for the child, otherwise a simple + * constructor which only calls the super constructor will be used instead. + * + * The super constructor can be accessed via a special super_ property on the child constructor. + * + * @param {string} [name=this.class_] - the class name to be used for the child constructor + * @param {Function} [constructor] - the constructor for the child + * @param {Object} [prototype] - the prototype properties to be defined for the child + * @param {Object} [statics] - the static properties to be defined for the child + * @return {Function} The child constructor provided or the one created if none was given. + * @public + * @static + * @memberof Nevis + */ + Nevis.extend = extend_1; + + var nevis = Nevis; + + var lite = nevis; + + /** + * Responsible for rendering a QR code {@link Frame} on a specific type of element. + * + * A renderer may be dependant on the rendering of another element, so the ordering of their execution is important. + * + * The rendering of a element can be deferred by disabling the renderer initially, however, any attempt get the element + * from the renderer will result in it being immediately enabled and the element being rendered. + * + * @param {QRious} qrious - the {@link QRious} instance to be used + * @param {*} element - the element onto which the QR code is to be rendered + * @param {boolean} [enabled] - true this {@link Renderer} is enabled; otherwise false. + * @public + * @class + * @extends Nevis + */ + var Renderer = lite.extend(function(qrious, element, enabled) { + /** + * The {@link QRious} instance. + * + * @protected + * @type {QRious} + * @memberof Renderer# + */ + this.qrious = qrious; + + /** + * The element onto which this {@link Renderer} is rendering the QR code. + * + * @protected + * @type {*} + * @memberof Renderer# + */ + this.element = element; + this.element.qrious = qrious; + + /** + * Whether this {@link Renderer} is enabled. + * + * @protected + * @type {boolean} + * @memberof Renderer# + */ + this.enabled = Boolean(enabled); + }, { + + /** + * Draws the specified QR code frame on the underlying element. + * + * Implementations of {@link Renderer} must override this method with their own specific logic. + * + * @param {Frame} frame - the {@link Frame} to be drawn + * @return {void} + * @protected + * @abstract + * @memberof Renderer# + */ + draw: function(frame) {}, + + /** + * Returns the element onto which this {@link Renderer} is rendering the QR code. + * + * If this method is called while this {@link Renderer} is disabled, it will be immediately enabled and rendered + * before the element is returned. + * + * @return {*} The element. + * @public + * @memberof Renderer# + */ + getElement: function() { + if (!this.enabled) { + this.enabled = true; + this.render(); + } + + return this.element; + }, + + /** + * Calculates the size (in pixel units) to represent an individual module within the QR code based on the + * frame provided. + * + * Any configured padding will be excluded from the returned size. + * + * The returned value will be at least one, even in cases where the size of the QR code does not fit its contents. + * This is done so that the inevitable clipping is handled more gracefully since this way at least something is + * displayed instead of just a blank space filled by the background color. + * + * @param {Frame} frame - the {@link Frame} from which the module size is to be derived + * @return {number} The pixel size for each module in the QR code which will be no less than one. + * @protected + * @memberof Renderer# + */ + getModuleSize: function(frame) { + var qrious = this.qrious; + var padding = qrious.padding || 0; + var pixels = Math.floor((qrious.size - (padding * 2)) / frame.width); + + return Math.max(1, pixels); + }, + + /** + * Calculates the offset/padding (in pixel units) to be inserted before the QR code based on the frame + * provided. + * + * The returned value will be zero if there is no available offset or if the size of the QR code does not fit its + * contents. It will never be a negative value. This is done so that the inevitable clipping appears more naturally + * and it is not clipped from all directions. + * + * @param {Frame} frame - the {@link Frame} from which the offset is to be derived + * @return {number} The pixel offset for the QR code which will be no less than zero. + * @protected + * @memberof Renderer# + */ + getOffset: function(frame) { + var qrious = this.qrious; + var padding = qrious.padding; + + if (padding != null) { + return padding; + } + + var moduleSize = this.getModuleSize(frame); + var offset = Math.floor((qrious.size - (moduleSize * frame.width)) / 2); + + return Math.max(0, offset); + }, + + /** + * Renders a QR code on the underlying element based on the frame provided. + * + * @param {Frame} frame - the {@link Frame} to be rendered + * @return {void} + * @public + * @memberof Renderer# + */ + render: function(frame) { + if (this.enabled) { + this.reset(); + this.draw(frame); + } + }, + + /** + * Resets the underlying element, effectively clearing any previously rendered QR code. + * + * Implementations of {@link Renderer} must override this method with their own specific logic. + * + * @return {void} + * @protected + * @abstract + * @memberof Renderer# + */ + reset: function() {}, + + /** + * Ensures that the size of the underlying element matches that defined on the associated {@link QRious} instance. + * + * Implementations of {@link Renderer} must override this method with their own specific logic. + * + * @return {void} + * @protected + * @abstract + * @memberof Renderer# + */ + resize: function() {} + + }); + + var Renderer_1 = Renderer; + + /** + * An implementation of {@link Renderer} for working with canvas elements. + * + * @public + * @class + * @extends Renderer + */ + var CanvasRenderer = Renderer_1.extend({ + + /** + * @override + */ + draw: function(frame) { + var i, j; + var qrious = this.qrious; + var moduleSize = this.getModuleSize(frame); + var offset = this.getOffset(frame); + var context = this.element.getContext('2d'); + + context.fillStyle = qrious.foreground; + context.globalAlpha = qrious.foregroundAlpha; + + for (i = 0; i < frame.width; i++) { + for (j = 0; j < frame.width; j++) { + if (frame.buffer[(j * frame.width) + i]) { + context.fillRect((moduleSize * i) + offset, (moduleSize * j) + offset, moduleSize, moduleSize); + } + } + } + }, + + /** + * @override + */ + reset: function() { + var qrious = this.qrious; + var context = this.element.getContext('2d'); + var size = qrious.size; + + context.lineWidth = 1; + context.clearRect(0, 0, size, size); + context.fillStyle = qrious.background; + context.globalAlpha = qrious.backgroundAlpha; + context.fillRect(0, 0, size, size); + }, + + /** + * @override + */ + resize: function() { + var element = this.element; + + element.width = element.height = this.qrious.size; + } + + }); + + var CanvasRenderer_1 = CanvasRenderer; + + /* eslint no-multi-spaces: "off" */ + + + + /** + * Contains alignment pattern information. + * + * @public + * @class + * @extends Nevis + */ + var Alignment = lite.extend(null, { + + /** + * The alignment pattern block. + * + * @public + * @static + * @type {number[]} + * @memberof Alignment + */ + BLOCK: [ + 0, 11, 15, 19, 23, 27, 31, + 16, 18, 20, 22, 24, 26, 28, 20, 22, 24, 24, 26, 28, 28, 22, 24, 24, + 26, 26, 28, 28, 24, 24, 26, 26, 26, 28, 28, 24, 26, 26, 26, 28, 28 + ] + + }); + + var Alignment_1 = Alignment; + + /* eslint no-multi-spaces: "off" */ + + + + /** + * Contains error correction information. + * + * @public + * @class + * @extends Nevis + */ + var ErrorCorrection = lite.extend(null, { + + /** + * The error correction blocks. + * + * There are four elements per version. The first two indicate the number of blocks, then the data width, and finally + * the ECC width. + * + * @public + * @static + * @type {number[]} + * @memberof ErrorCorrection + */ + BLOCKS: [ + 1, 0, 19, 7, 1, 0, 16, 10, 1, 0, 13, 13, 1, 0, 9, 17, + 1, 0, 34, 10, 1, 0, 28, 16, 1, 0, 22, 22, 1, 0, 16, 28, + 1, 0, 55, 15, 1, 0, 44, 26, 2, 0, 17, 18, 2, 0, 13, 22, + 1, 0, 80, 20, 2, 0, 32, 18, 2, 0, 24, 26, 4, 0, 9, 16, + 1, 0, 108, 26, 2, 0, 43, 24, 2, 2, 15, 18, 2, 2, 11, 22, + 2, 0, 68, 18, 4, 0, 27, 16, 4, 0, 19, 24, 4, 0, 15, 28, + 2, 0, 78, 20, 4, 0, 31, 18, 2, 4, 14, 18, 4, 1, 13, 26, + 2, 0, 97, 24, 2, 2, 38, 22, 4, 2, 18, 22, 4, 2, 14, 26, + 2, 0, 116, 30, 3, 2, 36, 22, 4, 4, 16, 20, 4, 4, 12, 24, + 2, 2, 68, 18, 4, 1, 43, 26, 6, 2, 19, 24, 6, 2, 15, 28, + 4, 0, 81, 20, 1, 4, 50, 30, 4, 4, 22, 28, 3, 8, 12, 24, + 2, 2, 92, 24, 6, 2, 36, 22, 4, 6, 20, 26, 7, 4, 14, 28, + 4, 0, 107, 26, 8, 1, 37, 22, 8, 4, 20, 24, 12, 4, 11, 22, + 3, 1, 115, 30, 4, 5, 40, 24, 11, 5, 16, 20, 11, 5, 12, 24, + 5, 1, 87, 22, 5, 5, 41, 24, 5, 7, 24, 30, 11, 7, 12, 24, + 5, 1, 98, 24, 7, 3, 45, 28, 15, 2, 19, 24, 3, 13, 15, 30, + 1, 5, 107, 28, 10, 1, 46, 28, 1, 15, 22, 28, 2, 17, 14, 28, + 5, 1, 120, 30, 9, 4, 43, 26, 17, 1, 22, 28, 2, 19, 14, 28, + 3, 4, 113, 28, 3, 11, 44, 26, 17, 4, 21, 26, 9, 16, 13, 26, + 3, 5, 107, 28, 3, 13, 41, 26, 15, 5, 24, 30, 15, 10, 15, 28, + 4, 4, 116, 28, 17, 0, 42, 26, 17, 6, 22, 28, 19, 6, 16, 30, + 2, 7, 111, 28, 17, 0, 46, 28, 7, 16, 24, 30, 34, 0, 13, 24, + 4, 5, 121, 30, 4, 14, 47, 28, 11, 14, 24, 30, 16, 14, 15, 30, + 6, 4, 117, 30, 6, 14, 45, 28, 11, 16, 24, 30, 30, 2, 16, 30, + 8, 4, 106, 26, 8, 13, 47, 28, 7, 22, 24, 30, 22, 13, 15, 30, + 10, 2, 114, 28, 19, 4, 46, 28, 28, 6, 22, 28, 33, 4, 16, 30, + 8, 4, 122, 30, 22, 3, 45, 28, 8, 26, 23, 30, 12, 28, 15, 30, + 3, 10, 117, 30, 3, 23, 45, 28, 4, 31, 24, 30, 11, 31, 15, 30, + 7, 7, 116, 30, 21, 7, 45, 28, 1, 37, 23, 30, 19, 26, 15, 30, + 5, 10, 115, 30, 19, 10, 47, 28, 15, 25, 24, 30, 23, 25, 15, 30, + 13, 3, 115, 30, 2, 29, 46, 28, 42, 1, 24, 30, 23, 28, 15, 30, + 17, 0, 115, 30, 10, 23, 46, 28, 10, 35, 24, 30, 19, 35, 15, 30, + 17, 1, 115, 30, 14, 21, 46, 28, 29, 19, 24, 30, 11, 46, 15, 30, + 13, 6, 115, 30, 14, 23, 46, 28, 44, 7, 24, 30, 59, 1, 16, 30, + 12, 7, 121, 30, 12, 26, 47, 28, 39, 14, 24, 30, 22, 41, 15, 30, + 6, 14, 121, 30, 6, 34, 47, 28, 46, 10, 24, 30, 2, 64, 15, 30, + 17, 4, 122, 30, 29, 14, 46, 28, 49, 10, 24, 30, 24, 46, 15, 30, + 4, 18, 122, 30, 13, 32, 46, 28, 48, 14, 24, 30, 42, 32, 15, 30, + 20, 4, 117, 30, 40, 7, 47, 28, 43, 22, 24, 30, 10, 67, 15, 30, + 19, 6, 118, 30, 18, 31, 47, 28, 34, 34, 24, 30, 20, 61, 15, 30 + ], + + /** + * The final format bits with mask (level << 3 | mask). + * + * @public + * @static + * @type {number[]} + * @memberof ErrorCorrection + */ + FINAL_FORMAT: [ + // L + 0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976, + // M + 0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0, + // Q + 0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed, + // H + 0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b + ], + + /** + * A map of human-readable ECC levels. + * + * @public + * @static + * @type {Object.} + * @memberof ErrorCorrection + */ + LEVELS: { + L: 1, + M: 2, + Q: 3, + H: 4 + } + + }); + + var ErrorCorrection_1 = ErrorCorrection; + + /** + * Contains Galois field information. + * + * @public + * @class + * @extends Nevis + */ + var Galois = lite.extend(null, { + + /** + * The Galois field exponent table. + * + * @public + * @static + * @type {number[]} + * @memberof Galois + */ + EXPONENT: [ + 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1d, 0x3a, 0x74, 0xe8, 0xcd, 0x87, 0x13, 0x26, + 0x4c, 0x98, 0x2d, 0x5a, 0xb4, 0x75, 0xea, 0xc9, 0x8f, 0x03, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, + 0x9d, 0x27, 0x4e, 0x9c, 0x25, 0x4a, 0x94, 0x35, 0x6a, 0xd4, 0xb5, 0x77, 0xee, 0xc1, 0x9f, 0x23, + 0x46, 0x8c, 0x05, 0x0a, 0x14, 0x28, 0x50, 0xa0, 0x5d, 0xba, 0x69, 0xd2, 0xb9, 0x6f, 0xde, 0xa1, + 0x5f, 0xbe, 0x61, 0xc2, 0x99, 0x2f, 0x5e, 0xbc, 0x65, 0xca, 0x89, 0x0f, 0x1e, 0x3c, 0x78, 0xf0, + 0xfd, 0xe7, 0xd3, 0xbb, 0x6b, 0xd6, 0xb1, 0x7f, 0xfe, 0xe1, 0xdf, 0xa3, 0x5b, 0xb6, 0x71, 0xe2, + 0xd9, 0xaf, 0x43, 0x86, 0x11, 0x22, 0x44, 0x88, 0x0d, 0x1a, 0x34, 0x68, 0xd0, 0xbd, 0x67, 0xce, + 0x81, 0x1f, 0x3e, 0x7c, 0xf8, 0xed, 0xc7, 0x93, 0x3b, 0x76, 0xec, 0xc5, 0x97, 0x33, 0x66, 0xcc, + 0x85, 0x17, 0x2e, 0x5c, 0xb8, 0x6d, 0xda, 0xa9, 0x4f, 0x9e, 0x21, 0x42, 0x84, 0x15, 0x2a, 0x54, + 0xa8, 0x4d, 0x9a, 0x29, 0x52, 0xa4, 0x55, 0xaa, 0x49, 0x92, 0x39, 0x72, 0xe4, 0xd5, 0xb7, 0x73, + 0xe6, 0xd1, 0xbf, 0x63, 0xc6, 0x91, 0x3f, 0x7e, 0xfc, 0xe5, 0xd7, 0xb3, 0x7b, 0xf6, 0xf1, 0xff, + 0xe3, 0xdb, 0xab, 0x4b, 0x96, 0x31, 0x62, 0xc4, 0x95, 0x37, 0x6e, 0xdc, 0xa5, 0x57, 0xae, 0x41, + 0x82, 0x19, 0x32, 0x64, 0xc8, 0x8d, 0x07, 0x0e, 0x1c, 0x38, 0x70, 0xe0, 0xdd, 0xa7, 0x53, 0xa6, + 0x51, 0xa2, 0x59, 0xb2, 0x79, 0xf2, 0xf9, 0xef, 0xc3, 0x9b, 0x2b, 0x56, 0xac, 0x45, 0x8a, 0x09, + 0x12, 0x24, 0x48, 0x90, 0x3d, 0x7a, 0xf4, 0xf5, 0xf7, 0xf3, 0xfb, 0xeb, 0xcb, 0x8b, 0x0b, 0x16, + 0x2c, 0x58, 0xb0, 0x7d, 0xfa, 0xe9, 0xcf, 0x83, 0x1b, 0x36, 0x6c, 0xd8, 0xad, 0x47, 0x8e, 0x00 + ], + + /** + * The Galois field log table. + * + * @public + * @static + * @type {number[]} + * @memberof Galois + */ + LOG: [ + 0xff, 0x00, 0x01, 0x19, 0x02, 0x32, 0x1a, 0xc6, 0x03, 0xdf, 0x33, 0xee, 0x1b, 0x68, 0xc7, 0x4b, + 0x04, 0x64, 0xe0, 0x0e, 0x34, 0x8d, 0xef, 0x81, 0x1c, 0xc1, 0x69, 0xf8, 0xc8, 0x08, 0x4c, 0x71, + 0x05, 0x8a, 0x65, 0x2f, 0xe1, 0x24, 0x0f, 0x21, 0x35, 0x93, 0x8e, 0xda, 0xf0, 0x12, 0x82, 0x45, + 0x1d, 0xb5, 0xc2, 0x7d, 0x6a, 0x27, 0xf9, 0xb9, 0xc9, 0x9a, 0x09, 0x78, 0x4d, 0xe4, 0x72, 0xa6, + 0x06, 0xbf, 0x8b, 0x62, 0x66, 0xdd, 0x30, 0xfd, 0xe2, 0x98, 0x25, 0xb3, 0x10, 0x91, 0x22, 0x88, + 0x36, 0xd0, 0x94, 0xce, 0x8f, 0x96, 0xdb, 0xbd, 0xf1, 0xd2, 0x13, 0x5c, 0x83, 0x38, 0x46, 0x40, + 0x1e, 0x42, 0xb6, 0xa3, 0xc3, 0x48, 0x7e, 0x6e, 0x6b, 0x3a, 0x28, 0x54, 0xfa, 0x85, 0xba, 0x3d, + 0xca, 0x5e, 0x9b, 0x9f, 0x0a, 0x15, 0x79, 0x2b, 0x4e, 0xd4, 0xe5, 0xac, 0x73, 0xf3, 0xa7, 0x57, + 0x07, 0x70, 0xc0, 0xf7, 0x8c, 0x80, 0x63, 0x0d, 0x67, 0x4a, 0xde, 0xed, 0x31, 0xc5, 0xfe, 0x18, + 0xe3, 0xa5, 0x99, 0x77, 0x26, 0xb8, 0xb4, 0x7c, 0x11, 0x44, 0x92, 0xd9, 0x23, 0x20, 0x89, 0x2e, + 0x37, 0x3f, 0xd1, 0x5b, 0x95, 0xbc, 0xcf, 0xcd, 0x90, 0x87, 0x97, 0xb2, 0xdc, 0xfc, 0xbe, 0x61, + 0xf2, 0x56, 0xd3, 0xab, 0x14, 0x2a, 0x5d, 0x9e, 0x84, 0x3c, 0x39, 0x53, 0x47, 0x6d, 0x41, 0xa2, + 0x1f, 0x2d, 0x43, 0xd8, 0xb7, 0x7b, 0xa4, 0x76, 0xc4, 0x17, 0x49, 0xec, 0x7f, 0x0c, 0x6f, 0xf6, + 0x6c, 0xa1, 0x3b, 0x52, 0x29, 0x9d, 0x55, 0xaa, 0xfb, 0x60, 0x86, 0xb1, 0xbb, 0xcc, 0x3e, 0x5a, + 0xcb, 0x59, 0x5f, 0xb0, 0x9c, 0xa9, 0xa0, 0x51, 0x0b, 0xf5, 0x16, 0xeb, 0x7a, 0x75, 0x2c, 0xd7, + 0x4f, 0xae, 0xd5, 0xe9, 0xe6, 0xe7, 0xad, 0xe8, 0x74, 0xd6, 0xf4, 0xea, 0xa8, 0x50, 0x58, 0xaf + ] + + }); + + var Galois_1 = Galois; + + /** + * Contains version pattern information. + * + * @public + * @class + * @extends Nevis + */ + var Version = lite.extend(null, { + + /** + * The version pattern block. + * + * @public + * @static + * @type {number[]} + * @memberof Version + */ + BLOCK: [ + 0xc94, 0x5bc, 0xa99, 0x4d3, 0xbf6, 0x762, 0x847, 0x60d, 0x928, 0xb78, 0x45d, 0xa17, 0x532, + 0x9a6, 0x683, 0x8c9, 0x7ec, 0xec4, 0x1e1, 0xfab, 0x08e, 0xc1a, 0x33f, 0xd75, 0x250, 0x9d5, + 0x6f0, 0x8ba, 0x79f, 0xb0b, 0x42e, 0xa64, 0x541, 0xc69 + ] + + }); + + var Version_1 = Version; + + /** + * Generates information for a QR code frame based on a specific value to be encoded. + * + * @param {Frame~Options} options - the options to be used + * @public + * @class + * @extends Nevis + */ + var Frame = lite.extend(function(options) { + var dataBlock, eccBlock, index, neccBlock1, neccBlock2; + var valueLength = options.value.length; + + this._badness = []; + this._level = ErrorCorrection_1.LEVELS[options.level]; + this._polynomial = []; + this._value = options.value; + this._version = 0; + this._stringBuffer = []; + + while (this._version < 40) { + this._version++; + + index = ((this._level - 1) * 4) + ((this._version - 1) * 16); + + neccBlock1 = ErrorCorrection_1.BLOCKS[index++]; + neccBlock2 = ErrorCorrection_1.BLOCKS[index++]; + dataBlock = ErrorCorrection_1.BLOCKS[index++]; + eccBlock = ErrorCorrection_1.BLOCKS[index]; + + index = (dataBlock * (neccBlock1 + neccBlock2)) + neccBlock2 - 3 + (this._version <= 9); + + if (valueLength <= index) { + break; + } + } + + this._dataBlock = dataBlock; + this._eccBlock = eccBlock; + this._neccBlock1 = neccBlock1; + this._neccBlock2 = neccBlock2; + + /** + * The data width is based on version. + * + * @public + * @type {number} + * @memberof Frame# + */ + // FIXME: Ensure that it fits instead of being truncated. + var width = this.width = 17 + (4 * this._version); + + /** + * The image buffer. + * + * @public + * @type {number[]} + * @memberof Frame# + */ + this.buffer = Frame._createArray(width * width); + + this._ecc = Frame._createArray(dataBlock + ((dataBlock + eccBlock) * (neccBlock1 + neccBlock2)) + neccBlock2); + this._mask = Frame._createArray(((width * (width + 1)) + 1) / 2); + + this._insertFinders(); + this._insertAlignments(); + + // Insert single foreground cell. + this.buffer[8 + (width * (width - 8))] = 1; + + this._insertTimingGap(); + this._reverseMask(); + this._insertTimingRowAndColumn(); + this._insertVersion(); + this._syncMask(); + this._convertBitStream(valueLength); + this._calculatePolynomial(); + this._appendEccToData(); + this._interleaveBlocks(); + this._pack(); + this._finish(); + }, { + + _addAlignment: function(x, y) { + var i; + var buffer = this.buffer; + var width = this.width; + + buffer[x + (width * y)] = 1; + + for (i = -2; i < 2; i++) { + buffer[x + i + (width * (y - 2))] = 1; + buffer[x - 2 + (width * (y + i + 1))] = 1; + buffer[x + 2 + (width * (y + i))] = 1; + buffer[x + i + 1 + (width * (y + 2))] = 1; + } + + for (i = 0; i < 2; i++) { + this._setMask(x - 1, y + i); + this._setMask(x + 1, y - i); + this._setMask(x - i, y - 1); + this._setMask(x + i, y + 1); + } + }, + + _appendData: function(data, dataLength, ecc, eccLength) { + var bit, i, j; + var polynomial = this._polynomial; + var stringBuffer = this._stringBuffer; + + for (i = 0; i < eccLength; i++) { + stringBuffer[ecc + i] = 0; + } + + for (i = 0; i < dataLength; i++) { + bit = Galois_1.LOG[stringBuffer[data + i] ^ stringBuffer[ecc]]; + + if (bit !== 255) { + for (j = 1; j < eccLength; j++) { + stringBuffer[ecc + j - 1] = stringBuffer[ecc + j] ^ + Galois_1.EXPONENT[Frame._modN(bit + polynomial[eccLength - j])]; + } + } else { + for (j = ecc; j < ecc + eccLength; j++) { + stringBuffer[j] = stringBuffer[j + 1]; + } + } + + stringBuffer[ecc + eccLength - 1] = bit === 255 ? 0 : Galois_1.EXPONENT[Frame._modN(bit + polynomial[0])]; + } + }, + + _appendEccToData: function() { + var i; + var data = 0; + var dataBlock = this._dataBlock; + var ecc = this._calculateMaxLength(); + var eccBlock = this._eccBlock; + + for (i = 0; i < this._neccBlock1; i++) { + this._appendData(data, dataBlock, ecc, eccBlock); + + data += dataBlock; + ecc += eccBlock; + } + + for (i = 0; i < this._neccBlock2; i++) { + this._appendData(data, dataBlock + 1, ecc, eccBlock); + + data += dataBlock + 1; + ecc += eccBlock; + } + }, + + _applyMask: function(mask) { + var r3x, r3y, x, y; + var buffer = this.buffer; + var width = this.width; + + switch (mask) { + case 0: + for (y = 0; y < width; y++) { + for (x = 0; x < width; x++) { + if (!((x + y) & 1) && !this._isMasked(x, y)) { + buffer[x + (y * width)] ^= 1; + } + } + } + + break; + case 1: + for (y = 0; y < width; y++) { + for (x = 0; x < width; x++) { + if (!(y & 1) && !this._isMasked(x, y)) { + buffer[x + (y * width)] ^= 1; + } + } + } + + break; + case 2: + for (y = 0; y < width; y++) { + for (r3x = 0, x = 0; x < width; x++, r3x++) { + if (r3x === 3) { + r3x = 0; + } + + if (!r3x && !this._isMasked(x, y)) { + buffer[x + (y * width)] ^= 1; + } + } + } + + break; + case 3: + for (r3y = 0, y = 0; y < width; y++, r3y++) { + if (r3y === 3) { + r3y = 0; + } + + for (r3x = r3y, x = 0; x < width; x++, r3x++) { + if (r3x === 3) { + r3x = 0; + } + + if (!r3x && !this._isMasked(x, y)) { + buffer[x + (y * width)] ^= 1; + } + } + } + + break; + case 4: + for (y = 0; y < width; y++) { + for (r3x = 0, r3y = (y >> 1) & 1, x = 0; x < width; x++, r3x++) { + if (r3x === 3) { + r3x = 0; + r3y = !r3y; + } + + if (!r3y && !this._isMasked(x, y)) { + buffer[x + (y * width)] ^= 1; + } + } + } + + break; + case 5: + for (r3y = 0, y = 0; y < width; y++, r3y++) { + if (r3y === 3) { + r3y = 0; + } + + for (r3x = 0, x = 0; x < width; x++, r3x++) { + if (r3x === 3) { + r3x = 0; + } + + if (!((x & y & 1) + !(!r3x | !r3y)) && !this._isMasked(x, y)) { + buffer[x + (y * width)] ^= 1; + } + } + } + + break; + case 6: + for (r3y = 0, y = 0; y < width; y++, r3y++) { + if (r3y === 3) { + r3y = 0; + } + + for (r3x = 0, x = 0; x < width; x++, r3x++) { + if (r3x === 3) { + r3x = 0; + } + + if (!((x & y & 1) + (r3x && r3x === r3y) & 1) && !this._isMasked(x, y)) { + buffer[x + (y * width)] ^= 1; + } + } + } + + break; + case 7: + for (r3y = 0, y = 0; y < width; y++, r3y++) { + if (r3y === 3) { + r3y = 0; + } + + for (r3x = 0, x = 0; x < width; x++, r3x++) { + if (r3x === 3) { + r3x = 0; + } + + if (!((r3x && r3x === r3y) + (x + y & 1) & 1) && !this._isMasked(x, y)) { + buffer[x + (y * width)] ^= 1; + } + } + } + + break; + } + }, + + _calculateMaxLength: function() { + return (this._dataBlock * (this._neccBlock1 + this._neccBlock2)) + this._neccBlock2; + }, + + _calculatePolynomial: function() { + var i, j; + var eccBlock = this._eccBlock; + var polynomial = this._polynomial; + + polynomial[0] = 1; + + for (i = 0; i < eccBlock; i++) { + polynomial[i + 1] = 1; + + for (j = i; j > 0; j--) { + polynomial[j] = polynomial[j] ? polynomial[j - 1] ^ + Galois_1.EXPONENT[Frame._modN(Galois_1.LOG[polynomial[j]] + i)] : polynomial[j - 1]; + } + + polynomial[0] = Galois_1.EXPONENT[Frame._modN(Galois_1.LOG[polynomial[0]] + i)]; + } + + // Use logs for generator polynomial to save calculation step. + for (i = 0; i <= eccBlock; i++) { + polynomial[i] = Galois_1.LOG[polynomial[i]]; + } + }, + + _checkBadness: function() { + var b, b1, h, x, y; + var bad = 0; + var badness = this._badness; + var buffer = this.buffer; + var width = this.width; + + // Blocks of same colour. + for (y = 0; y < width - 1; y++) { + for (x = 0; x < width - 1; x++) { + // All foreground colour. + if ((buffer[x + (width * y)] && + buffer[x + 1 + (width * y)] && + buffer[x + (width * (y + 1))] && + buffer[x + 1 + (width * (y + 1))]) || + // All background colour. + !(buffer[x + (width * y)] || + buffer[x + 1 + (width * y)] || + buffer[x + (width * (y + 1))] || + buffer[x + 1 + (width * (y + 1))])) { + bad += Frame.N2; + } + } + } + + var bw = 0; + + // X runs. + for (y = 0; y < width; y++) { + h = 0; + + badness[0] = 0; + + for (b = 0, x = 0; x < width; x++) { + b1 = buffer[x + (width * y)]; + + if (b === b1) { + badness[h]++; + } else { + badness[++h] = 1; + } + + b = b1; + bw += b ? 1 : -1; + } + + bad += this._getBadness(h); + } + + if (bw < 0) { + bw = -bw; + } + + var count = 0; + var big = bw; + big += big << 2; + big <<= 1; + + while (big > width * width) { + big -= width * width; + count++; + } + + bad += count * Frame.N4; + + // Y runs. + for (x = 0; x < width; x++) { + h = 0; + + badness[0] = 0; + + for (b = 0, y = 0; y < width; y++) { + b1 = buffer[x + (width * y)]; + + if (b === b1) { + badness[h]++; + } else { + badness[++h] = 1; + } + + b = b1; + } + + bad += this._getBadness(h); + } + + return bad; + }, + + _convertBitStream: function(length) { + var bit, i; + var ecc = this._ecc; + var version = this._version; + + // Convert string to bit stream. 8-bit data to QR-coded 8-bit data (numeric, alphanumeric, or kanji not supported). + for (i = 0; i < length; i++) { + ecc[i] = this._value.charCodeAt(i); + } + + var stringBuffer = this._stringBuffer = ecc.slice(); + var maxLength = this._calculateMaxLength(); + + if (length >= maxLength - 2) { + length = maxLength - 2; + + if (version > 9) { + length--; + } + } + + // Shift and re-pack to insert length prefix. + var index = length; + + if (version > 9) { + stringBuffer[index + 2] = 0; + stringBuffer[index + 3] = 0; + + while (index--) { + bit = stringBuffer[index]; + + stringBuffer[index + 3] |= 255 & (bit << 4); + stringBuffer[index + 2] = bit >> 4; + } + + stringBuffer[2] |= 255 & (length << 4); + stringBuffer[1] = length >> 4; + stringBuffer[0] = 0x40 | (length >> 12); + } else { + stringBuffer[index + 1] = 0; + stringBuffer[index + 2] = 0; + + while (index--) { + bit = stringBuffer[index]; + + stringBuffer[index + 2] |= 255 & (bit << 4); + stringBuffer[index + 1] = bit >> 4; + } + + stringBuffer[1] |= 255 & (length << 4); + stringBuffer[0] = 0x40 | (length >> 4); + } + + // Fill to end with pad pattern. + index = length + 3 - (version < 10); + + while (index < maxLength) { + stringBuffer[index++] = 0xec; + stringBuffer[index++] = 0x11; + } + }, + + _getBadness: function(length) { + var i; + var badRuns = 0; + var badness = this._badness; + + for (i = 0; i <= length; i++) { + if (badness[i] >= 5) { + badRuns += Frame.N1 + badness[i] - 5; + } + } + + // FBFFFBF as in finder. + for (i = 3; i < length - 1; i += 2) { + if (badness[i - 2] === badness[i + 2] && + badness[i + 2] === badness[i - 1] && + badness[i - 1] === badness[i + 1] && + badness[i - 1] * 3 === badness[i] && + // Background around the foreground pattern? Not part of the specs. + (badness[i - 3] === 0 || i + 3 > length || + badness[i - 3] * 3 >= badness[i] * 4 || + badness[i + 3] * 3 >= badness[i] * 4)) { + badRuns += Frame.N3; + } + } + + return badRuns; + }, + + _finish: function() { + // Save pre-mask copy of frame. + this._stringBuffer = this.buffer.slice(); + + var currentMask, i; + var bit = 0; + var mask = 30000; + + /* + * Using for instead of while since in original Arduino code if an early mask was "good enough" it wouldn't try for + * a better one since they get more complex and take longer. + */ + for (i = 0; i < 8; i++) { + // Returns foreground-background imbalance. + this._applyMask(i); + + currentMask = this._checkBadness(); + + // Is current mask better than previous best? + if (currentMask < mask) { + mask = currentMask; + bit = i; + } + + // Don't increment "i" to a void redoing mask. + if (bit === 7) { + break; + } + + // Reset for next pass. + this.buffer = this._stringBuffer.slice(); + } + + // Redo best mask as none were "good enough" (i.e. last wasn't bit). + if (bit !== i) { + this._applyMask(bit); + } + + // Add in final mask/ECC level bytes. + mask = ErrorCorrection_1.FINAL_FORMAT[bit + (this._level - 1 << 3)]; + + var buffer = this.buffer; + var width = this.width; + + // Low byte. + for (i = 0; i < 8; i++, mask >>= 1) { + if (mask & 1) { + buffer[width - 1 - i + (width * 8)] = 1; + + if (i < 6) { + buffer[8 + (width * i)] = 1; + } else { + buffer[8 + (width * (i + 1))] = 1; + } + } + } + + // High byte. + for (i = 0; i < 7; i++, mask >>= 1) { + if (mask & 1) { + buffer[8 + (width * (width - 7 + i))] = 1; + + if (i) { + buffer[6 - i + (width * 8)] = 1; + } else { + buffer[7 + (width * 8)] = 1; + } + } + } + }, + + _interleaveBlocks: function() { + var i, j; + var dataBlock = this._dataBlock; + var ecc = this._ecc; + var eccBlock = this._eccBlock; + var k = 0; + var maxLength = this._calculateMaxLength(); + var neccBlock1 = this._neccBlock1; + var neccBlock2 = this._neccBlock2; + var stringBuffer = this._stringBuffer; + + for (i = 0; i < dataBlock; i++) { + for (j = 0; j < neccBlock1; j++) { + ecc[k++] = stringBuffer[i + (j * dataBlock)]; + } + + for (j = 0; j < neccBlock2; j++) { + ecc[k++] = stringBuffer[(neccBlock1 * dataBlock) + i + (j * (dataBlock + 1))]; + } + } + + for (j = 0; j < neccBlock2; j++) { + ecc[k++] = stringBuffer[(neccBlock1 * dataBlock) + i + (j * (dataBlock + 1))]; + } + + for (i = 0; i < eccBlock; i++) { + for (j = 0; j < neccBlock1 + neccBlock2; j++) { + ecc[k++] = stringBuffer[maxLength + i + (j * eccBlock)]; + } + } + + this._stringBuffer = ecc; + }, + + _insertAlignments: function() { + var i, x, y; + var version = this._version; + var width = this.width; + + if (version > 1) { + i = Alignment_1.BLOCK[version]; + y = width - 7; + + for (;;) { + x = width - 7; + + while (x > i - 3) { + this._addAlignment(x, y); + + if (x < i) { + break; + } + + x -= i; + } + + if (y <= i + 9) { + break; + } + + y -= i; + + this._addAlignment(6, y); + this._addAlignment(y, 6); + } + } + }, + + _insertFinders: function() { + var i, j, x, y; + var buffer = this.buffer; + var width = this.width; + + for (i = 0; i < 3; i++) { + j = 0; + y = 0; + + if (i === 1) { + j = width - 7; + } + if (i === 2) { + y = width - 7; + } + + buffer[y + 3 + (width * (j + 3))] = 1; + + for (x = 0; x < 6; x++) { + buffer[y + x + (width * j)] = 1; + buffer[y + (width * (j + x + 1))] = 1; + buffer[y + 6 + (width * (j + x))] = 1; + buffer[y + x + 1 + (width * (j + 6))] = 1; + } + + for (x = 1; x < 5; x++) { + this._setMask(y + x, j + 1); + this._setMask(y + 1, j + x + 1); + this._setMask(y + 5, j + x); + this._setMask(y + x + 1, j + 5); + } + + for (x = 2; x < 4; x++) { + buffer[y + x + (width * (j + 2))] = 1; + buffer[y + 2 + (width * (j + x + 1))] = 1; + buffer[y + 4 + (width * (j + x))] = 1; + buffer[y + x + 1 + (width * (j + 4))] = 1; + } + } + }, + + _insertTimingGap: function() { + var x, y; + var width = this.width; + + for (y = 0; y < 7; y++) { + this._setMask(7, y); + this._setMask(width - 8, y); + this._setMask(7, y + width - 7); + } + + for (x = 0; x < 8; x++) { + this._setMask(x, 7); + this._setMask(x + width - 8, 7); + this._setMask(x, width - 8); + } + }, + + _insertTimingRowAndColumn: function() { + var x; + var buffer = this.buffer; + var width = this.width; + + for (x = 0; x < width - 14; x++) { + if (x & 1) { + this._setMask(8 + x, 6); + this._setMask(6, 8 + x); + } else { + buffer[8 + x + (width * 6)] = 1; + buffer[6 + (width * (8 + x))] = 1; + } + } + }, + + _insertVersion: function() { + var i, j, x, y; + var buffer = this.buffer; + var version = this._version; + var width = this.width; + + if (version > 6) { + i = Version_1.BLOCK[version - 7]; + j = 17; + + for (x = 0; x < 6; x++) { + for (y = 0; y < 3; y++, j--) { + if (1 & (j > 11 ? version >> j - 12 : i >> j)) { + buffer[5 - x + (width * (2 - y + width - 11))] = 1; + buffer[2 - y + width - 11 + (width * (5 - x))] = 1; + } else { + this._setMask(5 - x, 2 - y + width - 11); + this._setMask(2 - y + width - 11, 5 - x); + } + } + } + } + }, + + _isMasked: function(x, y) { + var bit = Frame._getMaskBit(x, y); + + return this._mask[bit] === 1; + }, + + _pack: function() { + var bit, i, j; + var k = 1; + var v = 1; + var width = this.width; + var x = width - 1; + var y = width - 1; + + // Interleaved data and ECC codes. + var length = ((this._dataBlock + this._eccBlock) * (this._neccBlock1 + this._neccBlock2)) + this._neccBlock2; + + for (i = 0; i < length; i++) { + bit = this._stringBuffer[i]; + + for (j = 0; j < 8; j++, bit <<= 1) { + if (0x80 & bit) { + this.buffer[x + (width * y)] = 1; + } + + // Find next fill position. + do { + if (v) { + x--; + } else { + x++; + + if (k) { + if (y !== 0) { + y--; + } else { + x -= 2; + k = !k; + + if (x === 6) { + x--; + y = 9; + } + } + } else if (y !== width - 1) { + y++; + } else { + x -= 2; + k = !k; + + if (x === 6) { + x--; + y -= 8; + } + } + } + + v = !v; + } while (this._isMasked(x, y)); + } + } + }, + + _reverseMask: function() { + var x, y; + var width = this.width; + + for (x = 0; x < 9; x++) { + this._setMask(x, 8); + } + + for (x = 0; x < 8; x++) { + this._setMask(x + width - 8, 8); + this._setMask(8, x); + } + + for (y = 0; y < 7; y++) { + this._setMask(8, y + width - 7); + } + }, + + _setMask: function(x, y) { + var bit = Frame._getMaskBit(x, y); + + this._mask[bit] = 1; + }, + + _syncMask: function() { + var x, y; + var width = this.width; + + for (y = 0; y < width; y++) { + for (x = 0; x <= y; x++) { + if (this.buffer[x + (width * y)]) { + this._setMask(x, y); + } + } + } + } + + }, { + + _createArray: function(length) { + var i; + var array = []; + + for (i = 0; i < length; i++) { + array[i] = 0; + } + + return array; + }, + + _getMaskBit: function(x, y) { + var bit; + + if (x > y) { + bit = x; + x = y; + y = bit; + } + + bit = y; + bit += y * y; + bit >>= 1; + bit += x; + + return bit; + }, + + _modN: function(x) { + while (x >= 255) { + x -= 255; + x = (x >> 8) + (x & 255); + } + + return x; + }, + + // *Badness* coefficients. + N1: 3, + N2: 3, + N3: 40, + N4: 10 + + }); + + var Frame_1 = Frame; + + /** + * The options used by {@link Frame}. + * + * @typedef {Object} Frame~Options + * @property {string} level - The ECC level to be used. + * @property {string} value - The value to be encoded. + */ + + /** + * An implementation of {@link Renderer} for working with img elements. + * + * This depends on {@link CanvasRenderer} being executed first as this implementation simply applies the data URL from + * the rendered canvas element as the src for the img element being rendered. + * + * @public + * @class + * @extends Renderer + */ + var ImageRenderer = Renderer_1.extend({ + + /** + * @override + */ + draw: function() { + this.element.src = this.qrious.toDataURL(); + }, + + /** + * @override + */ + reset: function() { + this.element.src = ''; + }, + + /** + * @override + */ + resize: function() { + var element = this.element; + + element.width = element.height = this.qrious.size; + } + + }); + + var ImageRenderer_1 = ImageRenderer; + + /** + * Defines an available option while also configuring how values are applied to the target object. + * + * Optionally, a default value can be specified as well a value transformer for greater control over how the option + * value is applied. + * + * If no value transformer is specified, then any specified option will be applied directly. All values are maintained + * on the target object itself as a field using the option name prefixed with a single underscore. + * + * When an option is specified as modifiable, the {@link OptionManager} will be required to include a setter for the + * property that is defined on the target object that uses the option name. + * + * @param {string} name - the name to be used + * @param {boolean} [modifiable] - true if the property defined on target objects should include a setter; + * otherwise false + * @param {*} [defaultValue] - the default value to be used + * @param {Option~ValueTransformer} [valueTransformer] - the value transformer to be used + * @public + * @class + * @extends Nevis + */ + var Option = lite.extend(function(name, modifiable, defaultValue, valueTransformer) { + /** + * The name for this {@link Option}. + * + * @public + * @type {string} + * @memberof Option# + */ + this.name = name; + + /** + * Whether a setter should be included on the property defined on target objects for this {@link Option}. + * + * @public + * @type {boolean} + * @memberof Option# + */ + this.modifiable = Boolean(modifiable); + + /** + * The default value for this {@link Option}. + * + * @public + * @type {*} + * @memberof Option# + */ + this.defaultValue = defaultValue; + + this._valueTransformer = valueTransformer; + }, { + + /** + * Transforms the specified value so that it can be applied for this {@link Option}. + * + * If a value transformer has been specified for this {@link Option}, it will be called upon to transform + * value. Otherwise, value will be returned directly. + * + * @param {*} value - the value to be transformed + * @return {*} The transformed value or value if no value transformer is specified. + * @public + * @memberof Option# + */ + transform: function(value) { + var transformer = this._valueTransformer; + if (typeof transformer === 'function') { + return transformer(value, this); + } + + return value; + } + + }); + + var Option_1 = Option; + + /** + * Returns a transformed value for the specified value to be applied for the option provided. + * + * @callback Option~ValueTransformer + * @param {*} value - the value to be transformed + * @param {Option} option - the {@link Option} for which value is being transformed + * @return {*} The transform value. + */ + + /** + * Contains utility methods that are useful throughout the library. + * + * @public + * @class + * @extends Nevis + */ + var Utilities = lite.extend(null, { + + /** + * Returns the absolute value of a given number. + * + * This method is simply a convenient shorthand for Math.abs while ensuring that nulls are returned as + * null instead of zero. + * + * @param {number} value - the number whose absolute value is to be returned + * @return {number} The absolute value of value or null if value is + * null. + * @public + * @static + * @memberof Utilities + */ + abs: function(value) { + return value != null ? Math.abs(value) : null; + }, + + /** + * Returns whether the specified object has a property with the specified name as an own + * (not inherited) property. + * + * @param {Object} object - the object on which the property is to be checked + * @param {string} name - the name of the property to be checked + * @return {boolean} true if object has an own property with name. + * @public + * @static + * @memberof Utilities + */ + hasOwn: function(object, name) { + return Object.prototype.hasOwnProperty.call(object, name); + }, + + /** + * A non-operation method that does absolutely nothing. + * + * @return {void} + * @public + * @static + * @memberof Utilities + */ + noop: function() {}, + + /** + * Transforms the specified string to upper case while remaining null-safe. + * + * @param {string} string - the string to be transformed to upper case + * @return {string} string transformed to upper case if string is not null. + * @public + * @static + * @memberof Utilities + */ + toUpperCase: function(string) { + return string != null ? string.toUpperCase() : null; + } + + }); + + var Utilities_1 = Utilities; + + /** + * Manages multiple {@link Option} instances that are intended to be used by multiple implementations. + * + * Although the option definitions are shared between targets, the values are maintained on the targets themselves. + * + * @param {Option[]} options - the options to be used + * @public + * @class + * @extends Nevis + */ + var OptionManager = lite.extend(function(options) { + /** + * The available options for this {@link OptionManager}. + * + * @public + * @type {Object.} + * @memberof OptionManager# + */ + this.options = {}; + + options.forEach(function(option) { + this.options[option.name] = option; + }, this); + }, { + + /** + * Returns whether an option with the specified name is available. + * + * @param {string} name - the name of the {@link Option} whose existence is to be checked + * @return {boolean} true if an {@link Option} exists with name; otherwise + * false. + * @public + * @memberof OptionManager# + */ + exists: function(name) { + return this.options[name] != null; + }, + + /** + * Returns the value of the option with the specified name on the target object provided. + * + * @param {string} name - the name of the {@link Option} whose value on target is to be returned + * @param {Object} target - the object from which the value of the named {@link Option} is to be returned + * @return {*} The value of the {@link Option} with name on target. + * @public + * @memberof OptionManager# + */ + get: function(name, target) { + return OptionManager._get(this.options[name], target); + }, + + /** + * Returns a copy of all of the available options on the target object provided. + * + * @param {Object} target - the object from which the option name/value pairs are to be returned + * @return {Object.} A hash containing the name/value pairs of all options on target. + * @public + * @memberof OptionManager# + */ + getAll: function(target) { + var name; + var options = this.options; + var result = {}; + + for (name in options) { + if (Utilities_1.hasOwn(options, name)) { + result[name] = OptionManager._get(options[name], target); + } + } + + return result; + }, + + /** + * Initializes the available options for the target object provided and then applies the initial values + * within the speciifed options. + * + * This method will throw an error if any of the names within options does not match an available option. + * + * This involves setting the default values and defining properties for all of the available options on + * target before finally calling {@link OptionMananger#setAll} with options and + * target. Any options that are configured to be modifiable will have a setter included in their defined + * property that will allow its corresponding value to be modified. + * + * If a change handler is specified, it will be called whenever the value changes on target for a + * modifiable option, but only when done so via the defined property's setter. + * + * @param {Object.} options - the name/value pairs of the initial options to be set + * @param {Object} target - the object on which the options are to be initialized + * @param {Function} [changeHandler] - the function to be called whenever the value of an modifiable option changes on + * target + * @return {void} + * @throws {Error} If options contains an invalid option name. + * @public + * @memberof OptionManager# + */ + init: function(options, target, changeHandler) { + if (typeof changeHandler !== 'function') { + changeHandler = Utilities_1.noop; + } + + var name, option; + + for (name in this.options) { + if (Utilities_1.hasOwn(this.options, name)) { + option = this.options[name]; + + OptionManager._set(option, option.defaultValue, target); + OptionManager._createAccessor(option, target, changeHandler); + } + } + + this._setAll(options, target, true); + }, + + /** + * Sets the value of the option with the specified name on the target object provided to + * value. + * + * This method will throw an error if name does not match an available option or matches an option that + * cannot be modified. + * + * If value is null and the {@link Option} has a default value configured, then that default + * value will be used instead. If the {@link Option} also has a value transformer configured, it will be used to + * transform whichever value was determined to be used. + * + * This method returns whether the value of the underlying field on target was changed as a result. + * + * @param {string} name - the name of the {@link Option} whose value is to be set + * @param {*} value - the value to be set for the named {@link Option} on target + * @param {Object} target - the object on which value is to be set for the named {@link Option} + * @return {boolean} true if the underlying field on target was changed; otherwise + * false. + * @throws {Error} If name is invalid or is for an option that cannot be modified. + * @public + * @memberof OptionManager# + */ + set: function(name, value, target) { + return this._set(name, value, target); + }, + + /** + * Sets all of the specified options on the target object provided to their corresponding + * values. + * + * This method will throw an error if any of the names within options does not match an available option + * or matches an option that cannot be modified. + * + * If any value within options is null and the corresponding {@link Option} has a default + * value configured, then that default value will be used instead. If an {@link Option} also has a value transformer + * configured, it will be used to transform whichever value was determined to be used. + * + * This method returns whether the value for any of the underlying fields on target were changed as a + * result. + * + * @param {Object.} options - the name/value pairs of options to be set + * @param {Object} target - the object on which the options are to be set + * @return {boolean} true if any of the underlying fields on target were changed; otherwise + * false. + * @throws {Error} If options contains an invalid option name or an option that cannot be modiifed. + * @public + * @memberof OptionManager# + */ + setAll: function(options, target) { + return this._setAll(options, target); + }, + + _set: function(name, value, target, allowUnmodifiable) { + var option = this.options[name]; + if (!option) { + throw new Error('Invalid option: ' + name); + } + if (!option.modifiable && !allowUnmodifiable) { + throw new Error('Option cannot be modified: ' + name); + } + + return OptionManager._set(option, value, target); + }, + + _setAll: function(options, target, allowUnmodifiable) { + if (!options) { + return false; + } + + var name; + var changed = false; + + for (name in options) { + if (Utilities_1.hasOwn(options, name) && this._set(name, options[name], target, allowUnmodifiable)) { + changed = true; + } + } + + return changed; + } + + }, { + + _createAccessor: function(option, target, changeHandler) { + var descriptor = { + get: function() { + return OptionManager._get(option, target); + } + }; + + if (option.modifiable) { + descriptor.set = function(value) { + if (OptionManager._set(option, value, target)) { + changeHandler(value, option); + } + }; + } + + Object.defineProperty(target, option.name, descriptor); + }, + + _get: function(option, target) { + return target['_' + option.name]; + }, + + _set: function(option, value, target) { + var fieldName = '_' + option.name; + var oldValue = target[fieldName]; + var newValue = option.transform(value != null ? value : option.defaultValue); + + target[fieldName] = newValue; + + return newValue !== oldValue; + } + + }); + + var OptionManager_1 = OptionManager; + + /** + * Called whenever the value of a modifiable {@link Option} is changed on a target object via the defined property's + * setter. + * + * @callback OptionManager~ChangeHandler + * @param {*} value - the new value for option on the target object + * @param {Option} option - the modifable {@link Option} whose value has changed on the target object. + * @return {void} + */ + + /** + * A basic manager for {@link Service} implementations that are mapped to simple names. + * + * @public + * @class + * @extends Nevis + */ + var ServiceManager = lite.extend(function() { + this._services = {}; + }, { + + /** + * Returns the {@link Service} being managed with the specified name. + * + * @param {string} name - the name of the {@link Service} to be returned + * @return {Service} The {@link Service} is being managed with name. + * @throws {Error} If no {@link Service} is being managed with name. + * @public + * @memberof ServiceManager# + */ + getService: function(name) { + var service = this._services[name]; + if (!service) { + throw new Error('Service is not being managed with name: ' + name); + } + + return service; + }, + + /** + * Sets the {@link Service} implementation to be managed for the specified name to the + * service provided. + * + * @param {string} name - the name of the {@link Service} to be managed with name + * @param {Service} service - the {@link Service} implementation to be managed + * @return {void} + * @throws {Error} If a {@link Service} is already being managed with the same name. + * @public + * @memberof ServiceManager# + */ + setService: function(name, service) { + if (this._services[name]) { + throw new Error('Service is already managed with name: ' + name); + } + + if (service) { + this._services[name] = service; + } + } + + }); + + var ServiceManager_1 = ServiceManager; + + var optionManager = new OptionManager_1([ + new Option_1('background', true, 'white'), + new Option_1('backgroundAlpha', true, 1, Utilities_1.abs), + new Option_1('element'), + new Option_1('foreground', true, 'black'), + new Option_1('foregroundAlpha', true, 1, Utilities_1.abs), + new Option_1('level', true, 'L', Utilities_1.toUpperCase), + new Option_1('mime', true, 'image/png'), + new Option_1('padding', true, null, Utilities_1.abs), + new Option_1('size', true, 100, Utilities_1.abs), + new Option_1('value', true, '') + ]); + var serviceManager = new ServiceManager_1(); + + /** + * Enables configuration of a QR code generator which uses HTML5 canvas for rendering. + * + * @param {QRious~Options} [options] - the options to be used + * @throws {Error} If any options are invalid. + * @public + * @class + * @extends Nevis + */ + var QRious = lite.extend(function(options) { + optionManager.init(options, this, this.update.bind(this)); + + var element = optionManager.get('element', this); + var elementService = serviceManager.getService('element'); + var canvas = element && elementService.isCanvas(element) ? element : elementService.createCanvas(); + var image = element && elementService.isImage(element) ? element : elementService.createImage(); + + this._canvasRenderer = new CanvasRenderer_1(this, canvas, true); + this._imageRenderer = new ImageRenderer_1(this, image, image === element); + + this.update(); + }, { + + /** + * Returns all of the options configured for this {@link QRious}. + * + * Any changes made to the returned object will not be reflected in the options themselves or their corresponding + * underlying fields. + * + * @return {Object.} A copy of the applied options. + * @public + * @memberof QRious# + */ + get: function() { + return optionManager.getAll(this); + }, + + /** + * Sets all of the specified options and automatically updates this {@link QRious} if any of the + * underlying fields are changed as a result. + * + * This is the preferred method for updating multiple options at one time to avoid unnecessary updates between + * changes. + * + * @param {QRious~Options} options - the options to be set + * @return {void} + * @throws {Error} If any options are invalid or cannot be modified. + * @public + * @memberof QRious# + */ + set: function(options) { + if (optionManager.setAll(options, this)) { + this.update(); + } + }, + + /** + * Returns the image data URI for the generated QR code using the mime provided. + * + * @param {string} [mime] - the MIME type for the image + * @return {string} The image data URI for the QR code. + * @public + * @memberof QRious# + */ + toDataURL: function(mime) { + return this.canvas.toDataURL(mime || this.mime); + }, + + /** + * Updates this {@link QRious} by generating a new {@link Frame} and re-rendering the QR code. + * + * @return {void} + * @protected + * @memberof QRious# + */ + update: function() { + var frame = new Frame_1({ + level: this.level, + value: this.value + }); + + this._canvasRenderer.render(frame); + this._imageRenderer.render(frame); + } + + }, { + + /** + * Configures the service provided to be used by all {@link QRious} instances. + * + * @param {Service} service - the {@link Service} to be configured + * @return {void} + * @throws {Error} If a {@link Service} has already been configured with the same name. + * @public + * @static + * @memberof QRious + */ + use: function(service) { + serviceManager.setService(service.getName(), service); + } + + }); + + Object.defineProperties(QRious.prototype, { + + canvas: { + /** + * Returns the canvas element being used to render the QR code for this {@link QRious}. + * + * @return {*} The canvas element. + * @public + * @memberof QRious# + * @alias canvas + */ + get: function() { + return this._canvasRenderer.getElement(); + } + }, + + image: { + /** + * Returns the img element being used to render the QR code for this {@link QRious}. + * + * @return {*} The img element. + * @public + * @memberof QRious# + * @alias image + */ + get: function() { + return this._imageRenderer.getElement(); + } + } + + }); + + var QRious_1$2 = QRious; + + /** + * The options used by {@link QRious}. + * + * @typedef {Object} QRious~Options + * @property {string} [background="white"] - The background color to be applied to the QR code. + * @property {number} [backgroundAlpha=1] - The background alpha to be applied to the QR code. + * @property {*} [element] - The element to be used to render the QR code which may either be an canvas or + * img. The element(s) will be created if needed. + * @property {string} [foreground="black"] - The foreground color to be applied to the QR code. + * @property {number} [foregroundAlpha=1] - The foreground alpha to be applied to the QR code. + * @property {string} [level="L"] - The error correction level to be applied to the QR code. + * @property {string} [mime="image/png"] - The MIME type to be used to render the image for the QR code. + * @property {number} [padding] - The padding for the QR code in pixels. + * @property {number} [size=100] - The size of the QR code in pixels. + * @property {string} [value=""] - The value to be encoded within the QR code. + */ + + var index = QRious_1$2; + + /** + * Defines a service contract that must be met by all implementations. + * + * @public + * @class + * @extends Nevis + */ + var Service = lite.extend({ + + /** + * Returns the name of this {@link Service}. + * + * @return {string} The service name. + * @public + * @abstract + * @memberof Service# + */ + getName: function() {} + + }); + + var Service_1 = Service; + + /** + * A service for working with elements. + * + * @public + * @class + * @extends Service + */ + var ElementService = Service_1.extend({ + + /** + * Creates an instance of a canvas element. + * + * Implementations of {@link ElementService} must override this method with their own specific logic. + * + * @return {*} The newly created canvas element. + * @public + * @abstract + * @memberof ElementService# + */ + createCanvas: function() {}, + + /** + * Creates an instance of a image element. + * + * Implementations of {@link ElementService} must override this method with their own specific logic. + * + * @return {*} The newly created image element. + * @public + * @abstract + * @memberof ElementService# + */ + createImage: function() {}, + + /** + * @override + */ + getName: function() { + return 'element'; + }, + + /** + * Returns whether the specified element is a canvas. + * + * Implementations of {@link ElementService} must override this method with their own specific logic. + * + * @param {*} element - the element to be checked + * @return {boolean} true if element is a canvas; otherwise false. + * @public + * @abstract + * @memberof ElementService# + */ + isCanvas: function(element) {}, + + /** + * Returns whether the specified element is an image. + * + * Implementations of {@link ElementService} must override this method with their own specific logic. + * + * @param {*} element - the element to be checked + * @return {boolean} true if element is an image; otherwise false. + * @public + * @abstract + * @memberof ElementService# + */ + isImage: function(element) {} + + }); + + var ElementService_1 = ElementService; + + /** + * An implementation of {@link ElementService} intended for use within a browser environment. + * + * @public + * @class + * @extends ElementService + */ + var BrowserElementService = ElementService_1.extend({ + + /** + * @override + */ + createCanvas: function() { + return document.createElement('canvas'); + }, + + /** + * @override + */ + createImage: function() { + return document.createElement('img'); + }, + + /** + * @override + */ + isCanvas: function(element) { + return element instanceof HTMLCanvasElement; + }, + + /** + * @override + */ + isImage: function(element) { + return element instanceof HTMLImageElement; + } + + }); + + var BrowserElementService_1 = BrowserElementService; + + index.use(new BrowserElementService_1()); + + var QRious_1 = index; + + return QRious_1; + +}))); diff --git a/www/js/qrious.min.js b/www/js/qrious.min.js new file mode 100644 index 0000000..dcb74a0 --- /dev/null +++ b/www/js/qrious.min.js @@ -0,0 +1,40 @@ +/* + * QRious v4.0.2 + * Copyright (C) 2017 Alasdair Mercer + * Copyright (C) 2010 Tom Zerucha + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + * + * + * Copyright (C) 2017 Alasdair Mercer, !ninja + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +!function($,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):$.QRious=e()}(this,function(){"use strict";var $=function(){},e=Object.prototype.hasOwnProperty,t=Array.prototype.slice;function x($,x,i){i=t.call(arguments,2);for(var s,n,_=0,a=i.length;_>1&1,x=0;x0;e--)x[e]=x[e]?x[e-1]^f.EXPONENT[h._modN(f.LOG[x[e]]+$)]:x[e-1];x[0]=f.EXPONENT[h._modN(f.LOG[x[0]]+$)]}for($=0;$<=t;$++)x[$]=f.LOG[x[$]]},_checkBadness:function(){var $,e,t,x,i,s=0,n=this._badness,_=this.buffer,a=this.width;for(i=0;ia*a;)f-=a*a,o++;for(s+=o*h.N4,x=0;x=n-2&&($=n-2,i>9&&$--);var 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