index.html
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<!-- # Javascript Sudoku Puzzle Generator Generation process is handled in a producer wrapped in a worker that is embedded in html. API is designed to be pluggable, but needs more interface to support this. Currently it responds with an array of rows. JS code includes: - a utility object, - an adapter that acts as the communication layer between producer and consumer (app) - app singleton that includes the rendering logic --> <script src="https://cdn.rawgit.com/MaxArt2501/object-observe/master/dist/object-observe-lite.min.js"></script> <div id='sudoku-app'></div> <!-- https://github.com/scriptype/bem --> <script type='text/javascript'> "use strict";!function(a){if("function"==typeof bootstrap)bootstrap("bem",a);else if("object"==typeof exports&&"object"==typeof module)module.exports=a();else if("function"==typeof define&&define.amd)define(a);else if("undefined"!=typeof ses){if(!ses.ok())return;ses.makeBem=a}else{if("undefined"==typeof window&&"undefined"==typeof self)throw new Error("This environment was not anticipated by bem. Please file a bug.");var b="undefined"!=typeof window?window:self,c=b.bem;b.bem=a(),b.bem.noConflict=function(){return b.bem=c,this}}}(function(){function a(a){"undefined"!=typeof a.modifier&&(c.modifier=a.modifier),"undefined"!=typeof a.element&&(c.element=a.element)}function b(a){if(!d.validate(a))return null;var b=a.block,e=a.element,f=a.modifiers,g=b,h=[];return!!e&&(g+=""+c.element+e),!!f&&Object.keys(f).forEach(function(a){var d=f[a],i="function"==typeof d?d(b,e,f):d;!!i&&h.push(""+g+c.modifier+a+" ")}),(g+" "+h.join("")).slice(0,-1)}var c={element:"__",modifier:"--"},d={messages:{block:"You must specify the name of block.",element:"Element name must be a string.",modifier:"Modifiers must be supplied in the `{name : bool || fn}` style."},blockName:function(a){return"undefined"!=typeof a&&"string"==typeof a&&a.length?!0:(console.warn(this.messages.block),!1)},element:function(a){return"undefined"!=typeof a&&"string"!=typeof a?(console.warn(this.messages.element),!1):!0},modifiers:function(a){return"undefined"==typeof a||"object"==typeof a&&"[object Object]"===toString.call(a)?!0:(console.warn(this.messages.modifier),!1)},validate:function(a){return this.blockName(a.block)&&this.element(a.element)&&this.modifiers(a.modifiers)}};return{setDelimiters:a,makeClassName:b}}); </script> <!-- Include Babel to transform code in browser --> <script type='text/javascript' src='https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.25/browser-polyfill.min.js'> </script> <script type='text/javascript' src='https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.25/browser.min.js'> </script> <!-- worker, sudoku api --> <script type='text/babel' id='worker'> self.sudoku = null // Worker Setup self.addEventListener('message', (event) => { var options = { method: null } try { options = JSON.parse(event.data); } catch (e) { console.warn('event.data is misformed', event) } switch (options.method) { case 'generate': var { hints, limit } = options self.sudoku = new Sudoku(hints, limit).generate() self.postMessage({ success: self.sudoku.success, board: self.sudoku.getBoard(), solution: self.sudoku.getSolution() }); break; case 'validate': var { map, number, index } = options self.postMessage({ result: sudoku.validate(map, number, index) }); break; } }, false); // API class Sudoku { constructor(hints, limit) { this.hints = hints this.limit = limit || 10000 this._logs = { raw: [], incidents: { limitExceeded: 0, notValid: 0, noNumbers: 0 } } this.success = null this.numbers = () => new Array(9) .join(" ") .split(" ") .map((num , i) => i + 1) /* Will be used in initial map. Each row will be consisted of randomly ordered numbers */ this.randomRow = () => { var row = [] var numbers = this.numbers() while (row.length < 9) { var index = Math.floor(Math.random() * numbers.length) row.push(numbers[index]) numbers.splice(index, 1) } return row } /* This is the dummy placeholder for the final results. Will be overridden through the backtracking process, and at the and, this will be the real results. */ this.result = new Array(9 * 9) .join(" ") .split(" ") .map(entry => null) /* Will be used as the nodeTree in the process of backtracking. Each cell has 9 alternative paths (randomly ordered). */ this.map = new Array(9 * 9) .join(" ") .split(" ") .map(path => this.randomRow()) /* Will be used as history in the backtracking process for checking if a candidate number is valid. */ this.stack = [] return this } toRows(arr) { var row = 0 var asRows = new Array(9) .join(" ") .split(" ") .map(row => []) for (let [index, entry] of arr.entries()) { asRows[row].push(entry) if ( !((index + 1) % 9) ) { row += 1 } } return asRows } no(path, index, msg) { var number = path[path.length - 1] this._logs.raw.push(`no: @${index} [${number}] ${msg} ${path} `) } yes(path, index) { this._logs.raw.push(`yes: ${index} ${path}`) } finalLog() { console.groupCollapsed('Raw Logs') console.groupCollapsed(this._logs.raw) console.groupEnd() console.groupEnd() console.groupCollapsed('Incidents') console.groupCollapsed(this._logs.incidents) console.groupEnd() console.groupEnd() } getBoard() { return this.toRows(this.substractCells()) } getSolution() { return this.toRows(this.result) } substractCells() { var _getNonEmptyIndex = () => { var index = Math.floor(Math.random() * _result.length) return _result[index] ? index : _getNonEmptyIndex() } var _result = this.result.filter(() => true) while ( _result.length - this.hints > _result.filter(n => !n).length ) { _result[_getNonEmptyIndex()] = '' } return _result } validate(map, number, index) { var rowIndex = Math.floor(index / 9) var colIndex = index % 9 var row = map.slice( rowIndex * 9, 9 * (rowIndex + 1) ) var col = map.filter((e, i) => i % 9 === colIndex ) var boxRow = Math.floor(rowIndex / 3) var boxCol = Math.floor(colIndex / 3) var box = map.filter((e, i) => Math.floor(Math.floor(i / 9) / 3) === boxRow && Math.floor((i % 9) / 3) === boxCol ) return { row: { first: row.indexOf(number), last: row.lastIndexOf(number) }, col: { first: col.indexOf(number), last: col.lastIndexOf(number) }, box: { first: box.indexOf(number), last: box.lastIndexOf(number) } } } _validate(map, index) { if (!map[index].length) { return false } this.stack.splice(index, this.stack.length) var path = map[index] var number = path[path.length - 1] var didFoundNumber = this.validate(this.stack, number, index) return ( didFoundNumber.col.first === -1 && didFoundNumber.row.first === -1 && didFoundNumber.box.first === -1 ) } _generate(map, index) { if (index === 9 * 9) { return true } if (--this.limit < 0) { this._logs.incidents.limitExceeded++ this.no(map[index], index, 'limit exceeded') return false } var path = map[index] if (!path.length) { map[index] = this.numbers() map[index - 1].pop() this._logs.incidents.noNumbers++ this.no(path, index, 'no numbers in it') return false } var currentNumber = path[path.length - 1] var isValid = this._validate(map, index) if (!isValid) { map[index].pop() map[index + 1] = this.numbers() this._logs.incidents.notValid++ this.no(path, index, 'is not valid') return false } else { this.stack.push(currentNumber) } for (let number of path.entries()) { if (this._generate(map, index + 1)) { this.result[index] = currentNumber this.yes(path, index) return true } } return false } generate() { if (this._generate(this.map, 0)) { this.success = true } this.finalLog() return this } } </script> |
style.css
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/**********************************\ --------- Sudoku App Styles -------- Contents: - Global definitions - Modules Each module may have its own variables, mixins, animations and media queries. This is the convention followed in structuring rules // ================== // Foo // ================== // Variables (Variables of Foo) [...] // Lorem (Lorem of foo) [...] // ================== // Bar // ================== [...] \**********************************/ @font-face { src: url("http://enes.in/GillSansTr-LightNr.otf"); font-family: Gill; font-weight: 100; } @font-face { src: url("http://enes.in/GillSansTr-Normal.otf"); font-family: Gill; font-weight: 300; } @font-face { src: url("http://enes.in/GillSansTr-Bold.otf"); font-family: Gill; font-weight: 600; } @font-face { src: url("http://enes.in/GillSansTr-ExtraBold.otf"); font-family: Gill; font-weight: 700; } @font-face { src: url("http://enes.in/GillSansTr-UltraBold.otf"); font-family: Gill; font-weight: 900; } html, body { width: 100%; height: 100%; } body { margin: 0; background: #f0f0f0; } @media (max-width: 260px) { .show-on-sm { display: none; } .show-on-md { display: none; } .show-on-lg { display: none; } .show-on-xs { display: block; } } @media (max-width: 420px) { .show-on-xs { display: none; } .show-on-md { display: none; } .show-on-lg { display: none; } .show-on-sm { display: block; } } @media (min-width: 421px) and (max-width: 615px) { .show-on-xs { display: none; } .show-on-sm { display: none; } .show-on-lg { display: none; } .show-on-md { display: block; } } @media (min-width: 615px) { .show-on-xs { display: none; } .show-on-sm { display: none; } .show-on-md { display: none; } .show-on-lg { display: block; } } @keyframes progress { 0% { box-shadow: none; } 25% { box-shadow: 2px -2px 0 1px; } 50% { box-shadow: 2px -2px 0 1px, 7px -2px 0 1px; } 100% { box-shadow: 2px -2px 0 1px, 7px -2px 0 1px, 12px -2px 0 1px; } } .fr { float: right; } .fl { float: left; } @media (max-width: 260px) { .button { padding: 0.25em 0.5em; font-size: 0.6em; } .button:not(:last-of-type) { margin-right: 0.15em; } .button--loading { padding-right: 1.5em; } } @media (min-width: 261px) and (max-width: 420px) { .button { padding: 0.25em 0.5em 0.15em; font-size: 0.75em; } .button:not(:last-of-type) { margin-right: 0.25em; } .button--loading { padding-right: 1.5em; } } @media (min-width: 421px) and (max-width: 615px) { .button { padding: 0.5em 0.75em 0.4em; font-size: 0.9em; } .button:not(:last-of-type) { margin-right: 0.5em; } .button--loading { padding-right: 1.5em; } } @media (min-width: 615px) { .button { padding: 0.75em 1em 0.6em; font-size: 1em; } .button:not(:last-of-type) { margin-right: 0.75em; } .button--loading { padding-right: 1.5em; } } .button { border: 1px solid; font-weight: normal; border-radius: 3px; background: none; box-shadow: none; transition: all 0.2s; } .button--primary { color: #4242d7; font-weight: 600; } .button--primary:hover, .button--primary:focus, .button--primary:active { border-color: #4242d7; background: #4242d7; } .button--primary:focus { box-shadow: 0 0 5px #4242d7; } .button--secondary { color: #d74242; } .button--secondary:hover, .button--secondary:focus, .button--secondary:active { border-color: #d74242; background: #d74242; } .button--secondary:focus { box-shadow: 0 0 5px #d74242; } .button--tertiary { color: #fff; border-color: #2ecc40; background: #2ecc40; } .button--neutral { color: #333; } .button--neutral:hover, .button--neutral:focus, .button--neutral:active { border-color: #333; background: #333; } .button--neutral:focus { box-shadow: 0 0 5px #333; } .button--compound { border-radius: 0; border-right: none; } .button--compound-first { border-bottom-left-radius: 3px; border-top-left-radius: 3px; } .button--compound-last { border-bottom-right-radius: 3px; border-top-right-radius: 3px; border-right: 1px solid; } .button--muted { pointer-events: none; } .button--disabled { border-color: #bbb; color: #bbb; pointer-events: none; } .button--loading-text::after { display: inline-block; width: 1px; height: 1px; content: ''; box-shadow: 2px -2px 1px 0; animation: progress 1s infinite; } .button:hover, .button:focus, .button:active { color: #fff; } .button:focus { outline: none; } .button:active { box-shadow: inset 0 -2px 10px rgba(0, 0, 0, .4); } .message { font-size: 0.9em; padding: 2em; margin: 0; border-radius: 3px; color: rgba(0, 0, 0, .75); } .message--busy { background: rgba(0, 0, 255, .1); } .message--fail { background: rgba(255, 0, 0, .1); } @media (max-width: 260px) { .sudoku { margin: 0 auto; padding-top: 0.5em; padding-bottom: 0.5em; } .sudoku__header { padding-bottom: 0.6em; } .sudoku__title { font-size: 1em; } .sudoku__table { font-size: 0.9em; border-top: 2px solid #444; border-left: 2px solid #444; border-collapse: collapse; } .sudoku__table-row { border-bottom: 1px solid #444; border-right: 2px solid #444; } .sudoku__table-row--separator { border-bottom: 2px solid #444; } .sudoku__table-cell { width: 16px; height: 16px; border-right: 1px solid #444; } .sudoku__table-cell--separator { border-right: 2px solid #444; } .sudoku { max-width: calc(260px / 1.5); min-width: calc(260px / 2); } } @media (min-width: 261px) and (max-width: 420px) { .sudoku { margin: 0 auto; padding-top: 1em; padding-bottom: 1em; } .sudoku__header { padding-bottom: 0.9em; } .sudoku__title { font-size: 1.2em; } .sudoku__table { font-size: 1.2em; border-top: 3px solid #444; border-left: 3px solid #444; border-collapse: collapse; } .sudoku__table-row { border-bottom: 1px solid #444; border-right: 3px solid #444; } .sudoku__table-row--separator { border-bottom: 3px solid #444; } .sudoku__table-cell { width: 32px; height: 32px; border-right: 1px solid #444; } .sudoku__table-cell--separator { border-right: 3px solid #444; } .sudoku { width: 260px; } } @media (min-width: 421px) and (max-width: 615px) { .sudoku { margin: 0 auto; padding-top: 2em; padding-bottom: 2em; } .sudoku__header { padding-bottom: 1.3em; } .sudoku__title { font-size: 1.5em; } .sudoku__table { font-size: 1.5em; border-top: 4px solid #444; border-left: 4px solid #444; border-collapse: collapse; } .sudoku__table-row { border-bottom: 1px solid #444; border-right: 4px solid #444; } .sudoku__table-row--separator { border-bottom: 4px solid #444; } .sudoku__table-cell { width: 48px; height: 48px; border-right: 1px solid #444; } .sudoku__table-cell--separator { border-right: 4px solid #444; } .sudoku { width: 420px; } } @media (min-width: 615px) { .sudoku { margin: 0 auto; padding-top: 3em; padding-bottom: 3em; } .sudoku__header { padding-bottom: 1.618em; } .sudoku__title { font-size: 2em; } .sudoku__table { font-size: 1.75em; border-top: 6px solid #444; border-left: 6px solid #444; border-collapse: collapse; } .sudoku__table-row { border-bottom: 2px solid #444; border-right: 6px solid #444; } .sudoku__table-row--separator { border-bottom: 6px solid #444; } .sudoku__table-cell { width: 64px; height: 64px; border-right: 2px solid #444; } .sudoku__table-cell--separator { border-right: 6px solid #444; } .sudoku { width: 615px; } } .sudoku { color: #444; } .sudoku__header { font-family: Gill, sans-serif; } .sudoku__title { font-weight: 600; } .sudoku__description { max-width: 640px; line-height: 1.4; font-weight: 100; } .sudoku__table { background: #fff; } .sudoku__table-cell { overflow: hidden; text-align: center; transition: all 0.25s; } .sudoku__table-cell--editable { color: #808080; } .sudoku__table-cell--editable:focus { background: rgba(0, 0, 255, .1); outline: none; } .sudoku__table-cell--error { color: red; background: #fdd; } .sudoku__table-cell--editable-error { text-shadow: 0 0 15px; } .sudoku__table-cell--editable-error:focus { color: #eee; background: #f45; } |
script.js
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// Utility var utils = (() => { function dom (selector) { if (selector[0] === '#') { return document.getElementById(selector.slice(1)) } return document.querySelectorAll(selector) } function copyJSON (obj) { return JSON.parse(JSON.stringify(obj)) } function isTouchDevice () { return navigator.userAgent .match(/(iPhone|iPod|iPad|Android|BlackBerry)/) } function getWorkerURLFromElement(selector) { var element = dom(selector) var content = babel.transform(element.innerText).code var blob = new Blob([content], {type: 'text/javascript'}) return URL.createObjectURL(blob) } // Will be used for restoring caret positions on rerenders. // Taken from: // http://stackoverflow.com/questions/1125292/how-to-move-cursor-to-end-of-contenteditable-entity var cursorManager = (function () { var cursorManager = {} var voidNodeTags = [ 'AREA', 'BASE', 'BR', 'COL', 'EMBED', 'HR', 'IMG', 'INPUT', 'KEYGEN', 'LINK', 'MENUITEM', 'META', 'PARAM', 'SOURCE', 'TRACK', 'WBR', 'BASEFONT', 'BGSOUND', 'FRAME', 'ISINDEX' ]; Array.prototype.contains = function(obj) { var i = this.length; while (i--) { if (this[i] === obj) { return true; } } return false; } function canContainText(node) { if(node.nodeType == 1) { return !voidNodeTags.contains(node.nodeName); } else { return false; } }; function getLastChildElement(el){ var lc = el.lastChild; while(lc && lc.nodeType != 1) { if(lc.previousSibling) lc = lc.previousSibling; else break; } return lc; } cursorManager.setEndOfContenteditable = function(contentEditableElement) { while(getLastChildElement(contentEditableElement) && canContainText(getLastChildElement(contentEditableElement))) { contentEditableElement = getLastChildElement(contentEditableElement); } var range,selection; if(document.createRange) { range = document.createRange(); range.selectNodeContents(contentEditableElement); range.collapse(false); selection = window.getSelection(); selection.removeAllRanges(); selection.addRange(range); } else if(document.selection) { range = document.body.createTextRange(); range.moveToElementText(contentEditableElement); range.collapse(false); range.select(); } } return cursorManager })() return { copyJSON, cursorManager, dom, getWorkerURLFromElement, isTouchDevice } })(); // API Adapter class SudokuAdapter { constructor(url) { this.worker = new Worker(url) return this } _postMessage(options) { this.worker.postMessage(JSON.stringify(options)) return new Promise((resolve, reject) => { this.worker.onmessage = event => { resolve(event.data) } }) } generate(options) { options = Object.assign ({}, options, { method: 'generate' }) return this._postMessage(options) } validate(options) { options = Object.assign ({}, options, { method: 'validate' }) return this._postMessage(options) } } // Client Side Settings const SUDOKU_APP_CONFIG = { HINTS: 34, TRY_LIMIT: 100000, WORKER_URL: utils.getWorkerURLFromElement('#worker'), DOM_TARGET: utils.dom('#sudoku-app') } // Client Side var SudokuApp = (config => { const { HINTS, TRY_LIMIT, WORKER_URL, DOM_TARGET } = config var sudokuAdapter = new SudokuAdapter(WORKER_URL) var state = { success: null, board: null, solution: null, solved: null, errors: [] }; Object.observe(state, render) var history = [state] var historyStash = [] // Event listeners var onClickGenerate = initialize var onClickSolve = function () { setState({ board: state.solution, solved: true, errors: [] }) } var onKeyUpCell = function (event) { var key = event.keyCode if ( // a key === 36 || // r key === 37 || // r key === 38 || // o key === 39 || // w key === 9 || // tab // mod key flags are always false in keyup event // keyIdentifier doesn't seem to be implemented // in all browsers key === 17 || // Control key === 16 || // Shift key === 91 || // Meta key === 19 || // Alt event.keyIdentifier === 'Control' || event.keyIdentifier === 'Shift' || event.keyIdentifier === 'Meta' || event.keyIdentifier === 'Alt' ) return var cell = event.target var value = cell.innerText if (value.length > 4) { cell.innerText = value.slice(0, 4) return false } var cellIndex = cell.getAttribute('data-cell-index') cellIndex = parseInt(cellIndex, 10) var rowIndex = Math.floor(cellIndex / 9) var cellIndexInRow = cellIndex - (rowIndex * 9) var board = Object.assign([], state.board) board[rowIndex].splice(cellIndexInRow, 1, value) validate(board).then(errors => { historyStash = [] history.push({}) var solved = null if (errors.indexOf(true) === -1) { solved = true board.forEach(row => { row.forEach(value => { if (!value || !parseInt(value, 10) || value.length > 1) { solved = false } }) }) } if (solved) { board = Object.assign([], board).map(row => row.map(n => +n)) } setState({ board, errors, solved }, (newState) => { history[history.length - 1] = newState restoreCaretPosition(cellIndex) }) }) } function keyDown (event) { var keys = { ctrlOrCmd: event.ctrlKey || event.metaKey, shift: event.shiftKey, z: event.keyCode === 90 } if (keys.ctrlOrCmd && keys.z) { if (keys.shift && historyStash.length) { redo() } else if (!keys.shift && history.length > 1) { undo() } } } function undo () { historyStash.push(history.pop()) setState(utils.copyJSON(history[history.length - 1])) } function redo () { history.push(historyStash.pop()) setState(utils.copyJSON(history[history.length - 1])) } function initialize () { unbindEvents() render() getSudoku().then(sudoku => { setState({ success: sudoku.success, board: sudoku.board, solution: sudoku.solution, errors: [], solved: false }, newState => { history = [newState] historyStash = [] }) }) } function setState(newState, callback) { requestAnimationFrame(() => { Object.assign(state, newState) if (typeof callback === 'function') { var param = utils.copyJSON(state) requestAnimationFrame(callback.bind(null, param)) } }) } function bindEvents() { var generateButton = utils.dom('#generate-button') var solveButton = utils.dom('#solve-button') var undoButton = utils.dom('#undo-button') var redoButton = utils.dom('#redo-button') generateButton && generateButton .addEventListener('click', onClickGenerate) solveButton && solveButton .addEventListener('click', onClickSolve) undoButton && undoButton .addEventListener('click', undo) redoButton && redoButton .addEventListener('click', redo) var cells = utils.dom('.sudoku__table-cell') ;[].forEach.call(cells, (cell) => { cell.addEventListener('keyup', onKeyUpCell) }) window.addEventListener('keydown', keyDown) } function unbindEvents() { var generateButton = utils.dom('#generate-button') var solveButton = utils.dom('#solve-button') var undoButton = utils.dom('#undo-button') var redoButton = utils.dom('#redo-button') generateButton && generateButton .removeEventListener('click', onClickGenerate) solveButton && solveButton .removeEventListener('click', onClickSolve) undoButton && undoButton .removeEventListener('click', undo) redoButton && redoButton .removeEventListener('click', redo) var cells = utils.dom('.sudoku__table-cell') ;[].forEach.call(cells, (cell) => { cell.removeEventListener('keyup', onKeyUpCell) }) window.removeEventListener('keydown', keyDown) } function restoreCaretPosition(cellIndex) { utils.cursorManager.setEndOfContenteditable( utils.dom(`[data-cell-index="${ cellIndex }"]`)[0] ) } function getSudoku() { return sudokuAdapter.generate({ hints: HINTS, limit: TRY_LIMIT }) } function validate(board) { var map = board.reduce((memo, row) => { for (let num of row) { memo.push(num) } return memo }, []).map((num) => parseInt(num, 10)) var validations = [] // Will validate one by one for (let [index, number] of map.entries()) { if (!number) { validations.push( new Promise(res => { res({ result: { box: -1, col: -1, row: -1 } }) }) ) } else { let all = Promise.all(validations) validations.push(all.then(() => { return sudokuAdapter.validate({map, number, index}) })) } } return Promise.all(validations) .then(values => { var errors = [] for (let [index, validation] of values.entries()) { let { box, col, row } = validation.result let errorInBox = box.first !== box.last let errorInCol = col.first !== col.last let errorInRow = row.first !== row.last let indexOfRow = Math.floor(index / 9) let indexInRow = index - (indexOfRow * 9) errors[index] = errorInRow || errorInCol || errorInBox } return errors }) } function render() { unbindEvents() DOM_TARGET.innerHTML = ` <div class='sudoku'> ${ headerComponent() } ${ contentComponent() } </div> ` bindEvents() } function buttonComponent(props) { var { id, text, mods, classes } = props var blockName = 'button' var modifiers = {} var modType = toString.call(mods) if (modType === '[object String]') { modifiers[mods] = true } else if (modType === '[object Array]') { for (let modName of mods) { modifiers[modName] = true } } var blockClasses = bem.makeClassName({ block: blockName, modifiers: modifiers }); var buttonTextClass = `${blockName}-text` if (Object.keys(modifiers).length) { buttonTextClass += ( Object.keys(modifiers).reduce((memo, curr) => { return memo + ` ${blockName}--${curr}-text` }, '') ) } var lgText = typeof text === 'string' ? text : text[0] var mdText = typeof text === 'string' ? text : text[1] var smText = typeof text === 'string' ? text : text[2] return (` <button id='${ id }' class='${ blockClasses } ${ classes || "" }'> <span class='show-on-sm ${buttonTextClass}'> ${ smText } </span> <span class='show-on-md ${buttonTextClass}'> ${ mdText } </span> <span class='show-on-lg ${buttonTextClass}'> ${ lgText } </span> </button> `) } function messageComponent(options) { var { state, content } = options var messageClass = bem.makeClassName({ block: 'message', modifiers: state ? { [state]: true } : {} }) return (` <p class='${ messageClass }'> ${ content } </p> `) } function descriptionComponent(options) { var { className, infoLevel } = options var technical = ` In this demo, <a href='https://en.wikipedia.org/wiki/Backtracking'> backtracking algorithm </a> is used for <em>generating</em> the sudoku.` var description = ` Difficulty and solvability is totally random as I randomly left a certain number of hints from a full-filled board. ` if (infoLevel === 'full') { return (` <p class='${ className || '' }'> ${ technical } ${ description } </p> `) } else if (infoLevel === 'mini') { return (` <p class='${ className || '' }'> ${ description } </p> `) } } function restoreScrollPosComponent() { return `<div style='height: 540px'></div>` } function headerComponent() { return (` <div class='sudoku__header'> <h1 class='sudoku__title'> <span class='show-on-sm'> Sudoku </span> <span class='show-on-md'> Sudoku Puzzle </span> <span class='show-on-lg'> Javascript Sudoku Puzzle Generator </span> </h1> ${descriptionComponent({ infoLevel: 'mini', className: 'sudoku__description show-on-md' })} ${descriptionComponent({ infoLevel: 'full', className: 'sudoku__description show-on-lg' })} ${ state.success ? (` ${buttonComponent({ id: 'generate-button', text: ['New Board', 'New Board', 'New'], mods: 'primary' })} ${ state.solved ? buttonComponent({ id: 'solve-button', text: 'Solved', mods: ['tertiary', 'muted'] }) : buttonComponent({ id: 'solve-button', text: 'Solve', mods: 'secondary' }) } `) : (` ${buttonComponent({ id: 'generate-button', text: ['Generating', '', ''], mods: ['disabled', 'loading'] })} ${buttonComponent({ id: 'solve-button', text: 'Solve', mods: 'disabled' })} `) } ${ utils.isTouchDevice() ? (` ${buttonComponent({ id: 'redo-button', text: ['»', '»', '>', '>'], classes: 'fr', mods: [ 'neutral', 'compound', 'compound-last', `${ !historyStash.length ? 'disabled' : '' }` ] })} ${buttonComponent({ id: 'undo-button', text: ['«', '«', '<', '<'], classes: 'fr', mods: [ 'neutral', 'compound', 'compound-first', `${ history.length > 1 ? '' : 'disabled' }` ] })} `) : ''} </div> `) } function contentComponent() { var _isSeparator = (index) => !!index && !((index + 1) % 3) var resultReady = !!state.board var fail = resultReady && !state.success if (!resultReady) { return (` ${messageComponent({ state: 'busy', content: `Generating new board...` })} ${ restoreScrollPosComponent() } `) } if (fail) { return (` ${messageComponent({ state: 'fail', content: `Something went wrong with this board, try generating another one.` })} ${ restoreScrollPosComponent() } `) } var rows = state.board return (` <table class='sudoku__table'> ${rows.map((row, index) => { let className = bem.makeClassName({ block: 'sudoku', element: 'table-row', modifiers: { separator: _isSeparator(index) } }); return ( `<tr class='${ className }'> ${row.map((num, _index) => { let cellIndex = (index * 9) + _index let separator = _isSeparator(_index) let editable = typeof num !== 'number' let error = state.errors[cellIndex] let className = bem.makeClassName({ block: 'sudoku', element: 'table-cell', modifiers: { separator, editable, error, 'editable-error': editable && error } }); return ( `\n\t <td class='${ className }' data-cell-index='${ cellIndex }' ${ editable ? 'contenteditable' : ''}> ${ num } </td>` ) }).join('')} \n</tr>\n` ) }).join('')} </table> `) } return { initialize } })( SUDOKU_APP_CONFIG ).initialize() |
