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* Fix #378 - Removing sesskey requirement for viewing attendance.php * Fix #378 - Show password icon when only QR code is selected. * Fix #378 - Refactor/Add functionality for QR Code & No Password * Changes to DB structure for rotateqrcode feature * Added Rotate QR code function * Adding new field to settings and DB create/update functions * Added function to check QR code pass and cookies, error messages. * Added function to return QR passwords as JSON * Moved unix timestamp generation to PHP * Added function that outputs JS to render the rotation code * Add QR code library qrcode.js * Added code to display and rotate the QR code. * Ammended password.php to not show text password when rotating. * Load information from database earlier, fixed check for password * Set expiry time for cookie * Autofill password for authenticated rotateqrcode users * Disable conflicting settings if rotateqr is enabled * Updating version number * Added maximum length to password field and amended key, name for table * Ammend upgrade.php to update db structure for qrcode rotation * Add id column to attendance_rotate_passwords * Removed interval setting from session. Using plugin setting instead. * Amend return passwords function * Update version numbers for DB/version.php * Hide rotate option when students cannot mark on update page. * Show QR icon when rotateqrcode is enabled. * Rename qrcoderotate JS file, frakenstyle * Add qrcode.js to thirdpartylibs.xml * Generate random password when rotateqrcode session is updated. * Add qrcodesecret column to database * Use separate password for rotateqrcode cookie * Remove unnecessary qrcodeinterval database field * Replacing $_GET with optional_param * Clarified time unit (seconds) for Rotate QR Code strings. * Moved rotateqrcodeinterval under studentscanmark setting * Fix code formatting in attendance.php and locallib.php * Add rotateqrcodesecret to structure * Add task to clear temporary qrrotation passwords * Functionality to allow password to be accepted if expired within 2sec * Documenting class clear_temporary_passwords * Updating delete temporary passwords taskMOODLE_36_STABLE
Dan Marsden
6 years ago
committed by
GitHub
GitHub
19 changed files with 1075 additions and 16 deletions
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<?php |
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// This file is part of Moodle - http://moodle.org/ |
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// |
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// Moodle is free software: you can redistribute it and/or modify |
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// it under the terms of the GNU General Public License as published by |
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// the Free Software Foundation, either version 3 of the License, or |
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// (at your option) any later version. |
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// |
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// Moodle is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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// GNU General Public License for more details. |
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// |
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// You should have received a copy of the GNU General Public License |
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>. |
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/** |
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* Attendance task - clear temporary passwords. |
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* |
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* @package mod_attendance |
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* @copyright 2019 Maksud R |
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
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*/ |
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namespace mod_attendance\task; |
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defined('MOODLE_INTERNAL') || die(); |
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/** |
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* clear_temporary_passwords class, used to clean up the temporary passwords. |
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* |
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* @package mod_attendance |
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* @copyright 2019 Maksud R |
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
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*/ |
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class clear_temporary_passwords extends \core\task\scheduled_task { |
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/** |
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* Return the task's name as shown in admin screens. |
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* |
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* @return string |
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*/ |
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public function get_name() { |
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return get_string('rotateqrcode_cleartemppass_task', 'mod_attendance'); |
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} |
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/** |
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* Execute the task. |
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*/ |
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public function execute() { |
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global $DB; |
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$params = array('currenttime' => time()); |
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$DB->delete_records_select('attendance_rotate_passwords', 'expirytime < :currenttime', $params); |
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} |
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} |
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/** |
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* |
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* @copyright 2019 Maksud R |
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* @package mod_attendance |
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* |
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*/ |
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class attendance_QRCodeRotate { |
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constructor() { |
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this.sessionId = 0; |
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this.password = ""; |
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this.qrCodeInstance = ""; |
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this.qrCodeHTMLElement = ""; |
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} |
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start(sessionId, qrCodeHTMLElement) { |
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this.sessionId = sessionId; |
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this.qrCodeHTMLElement = qrCodeHTMLElement; |
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this.fetchAndRotate(); |
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} |
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qrCodeSetUp() { |
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this.qrCodeInstance = new QRCode(this.qrCodeHTMLElement, { |
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text: '', |
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width: 328, |
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height: 328, |
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colorDark : "#000000", |
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colorLight : "#ffffff", |
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correctLevel : QRCode.CorrectLevel.H |
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}); |
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} |
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changeQRCode(password) { |
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var qrcodeurl = document.URL.substr(0,document.URL.lastIndexOf('/')) + '/attendance.php?qrpass=' + password + '&sessid=' + this.sessionId; |
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this.qrCodeInstance.clear(); |
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this.qrCodeInstance.makeCode(qrcodeurl); |
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} |
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startRotating() { |
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var parent = this; |
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setInterval(function() { |
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var found = Object.values(parent.password).find(function(element) { |
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if (element.expirytime > Math.round(new Date().getTime() / 1000)) { |
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return element; |
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} |
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}); |
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if (found == undefined) { |
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location.reload(true); |
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} else { |
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parent.changeQRCode(found.password); |
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} |
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}, 1000); |
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} |
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fetchAndRotate() { |
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var parent = this; |
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fetch('password.php?session='+this.sessionId+'&returnpasswords=1', { |
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headers: { |
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'Content-Type': 'application/json; charset=utf-8' |
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} |
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}) |
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.then((resp) => resp.json()) // Transform the data into json
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.then(function(data) { |
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parent.password = data; |
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parent.qrCodeSetUp(); |
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// this.changeQRCode( password );
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parent.startRotating(); |
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}).catch(err => { |
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console.error("Error fetching QR passwords from API."); |
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}); |
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} |
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} |
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# QRCode.js |
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QRCode.js is javascript library for making QRCode. QRCode.js supports Cross-browser with HTML5 Canvas and table tag in DOM. |
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QRCode.js has no dependencies. |
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## Basic Usages |
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``` |
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<div id="qrcode"></div> |
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<script type="text/javascript"> |
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new QRCode(document.getElementById("qrcode"), "http://jindo.dev.naver.com/collie"); |
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</script> |
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``` |
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or with some options |
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``` |
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<div id="qrcode"></div> |
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<script type="text/javascript"> |
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var qrcode = new QRCode(document.getElementById("qrcode"), { |
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text: "http://jindo.dev.naver.com/collie", |
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width: 128, |
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height: 128, |
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colorDark : "#000000", |
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colorLight : "#ffffff", |
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correctLevel : QRCode.CorrectLevel.H |
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}); |
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</script> |
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``` |
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and you can use some methods |
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``` |
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qrcode.clear(); // clear the code. |
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qrcode.makeCode("http://naver.com"); // make another code. |
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``` |
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## Browser Compatibility |
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IE6~10, Chrome, Firefox, Safari, Opera, Mobile Safari, Android, Windows Mobile, ETC. |
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## License |
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MIT License |
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## Contact |
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twitter @davidshimjs |
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[](https://bitdeli.com/free "Bitdeli Badge") |
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/** |
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* @fileoverview |
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* - Using the 'QRCode for Javascript library' |
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* - Fixed dataset of 'QRCode for Javascript library' for support full-spec. |
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* - this library has no dependencies. |
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* |
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* @author davidshimjs |
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* @see <a href="http://www.d-project.com/" target="_blank">http://www.d-project.com/</a>
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* @see <a href="http://jeromeetienne.github.com/jquery-qrcode/" target="_blank">http://jeromeetienne.github.com/jquery-qrcode/</a>
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*/ |
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var QRCode; |
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(function () { |
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//---------------------------------------------------------------------
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// QRCode for JavaScript
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//
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// Copyright (c) 2009 Kazuhiko Arase
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//
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// URL: http://www.d-project.com/
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//
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// Licensed under the MIT license:
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// http://www.opensource.org/licenses/mit-license.php
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//
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// The word "QR Code" is registered trademark of
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// DENSO WAVE INCORPORATED
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// http://www.denso-wave.com/qrcode/faqpatent-e.html
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//
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//---------------------------------------------------------------------
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function QR8bitByte(data) { |
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this.mode = QRMode.MODE_8BIT_BYTE; |
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this.data = data; |
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this.parsedData = []; |
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// Added to support UTF-8 Characters
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for (var i = 0, l = this.data.length; i < l; i++) { |
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var byteArray = []; |
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var code = this.data.charCodeAt(i); |
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if (code > 0x10000) { |
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byteArray[0] = 0xF0 | ((code & 0x1C0000) >>> 18); |
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byteArray[1] = 0x80 | ((code & 0x3F000) >>> 12); |
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byteArray[2] = 0x80 | ((code & 0xFC0) >>> 6); |
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byteArray[3] = 0x80 | (code & 0x3F); |
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} else if (code > 0x800) { |
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byteArray[0] = 0xE0 | ((code & 0xF000) >>> 12); |
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byteArray[1] = 0x80 | ((code & 0xFC0) >>> 6); |
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byteArray[2] = 0x80 | (code & 0x3F); |
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} else if (code > 0x80) { |
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byteArray[0] = 0xC0 | ((code & 0x7C0) >>> 6); |
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byteArray[1] = 0x80 | (code & 0x3F); |
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} else { |
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byteArray[0] = code; |
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} |
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this.parsedData.push(byteArray); |
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} |
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this.parsedData = Array.prototype.concat.apply([], this.parsedData); |
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if (this.parsedData.length != this.data.length) { |
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this.parsedData.unshift(191); |
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this.parsedData.unshift(187); |
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this.parsedData.unshift(239); |
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} |
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} |
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QR8bitByte.prototype = { |
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getLength: function (buffer) { |
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return this.parsedData.length; |
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}, |
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write: function (buffer) { |
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for (var i = 0, l = this.parsedData.length; i < l; i++) { |
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buffer.put(this.parsedData[i], 8); |
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} |
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} |
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}; |
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function QRCodeModel(typeNumber, errorCorrectLevel) { |
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this.typeNumber = typeNumber; |
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this.errorCorrectLevel = errorCorrectLevel; |
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this.modules = null; |
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this.moduleCount = 0; |
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this.dataCache = null; |
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this.dataList = []; |
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} |
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QRCodeModel.prototype={addData:function(data){var newData=new QR8bitByte(data);this.dataList.push(newData);this.dataCache=null;},isDark:function(row,col){if(row<0||this.moduleCount<=row||col<0||this.moduleCount<=col){throw new Error(row+","+col);} |
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return this.modules[row][col];},getModuleCount:function(){return this.moduleCount;},make:function(){this.makeImpl(false,this.getBestMaskPattern());},makeImpl:function(test,maskPattern){this.moduleCount=this.typeNumber*4+17;this.modules=new Array(this.moduleCount);for(var row=0;row<this.moduleCount;row++){this.modules[row]=new Array(this.moduleCount);for(var col=0;col<this.moduleCount;col++){this.modules[row][col]=null;}} |
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this.setupPositionProbePattern(0,0);this.setupPositionProbePattern(this.moduleCount-7,0);this.setupPositionProbePattern(0,this.moduleCount-7);this.setupPositionAdjustPattern();this.setupTimingPattern();this.setupTypeInfo(test,maskPattern);if(this.typeNumber>=7){this.setupTypeNumber(test);} |
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if(this.dataCache==null){this.dataCache=QRCodeModel.createData(this.typeNumber,this.errorCorrectLevel,this.dataList);} |
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this.mapData(this.dataCache,maskPattern);},setupPositionProbePattern:function(row,col){for(var r=-1;r<=7;r++){if(row+r<=-1||this.moduleCount<=row+r)continue;for(var c=-1;c<=7;c++){if(col+c<=-1||this.moduleCount<=col+c)continue;if((0<=r&&r<=6&&(c==0||c==6))||(0<=c&&c<=6&&(r==0||r==6))||(2<=r&&r<=4&&2<=c&&c<=4)){this.modules[row+r][col+c]=true;}else{this.modules[row+r][col+c]=false;}}}},getBestMaskPattern:function(){var minLostPoint=0;var pattern=0;for(var i=0;i<8;i++){this.makeImpl(true,i);var lostPoint=QRUtil.getLostPoint(this);if(i==0||minLostPoint>lostPoint){minLostPoint=lostPoint;pattern=i;}} |
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return pattern;},createMovieClip:function(target_mc,instance_name,depth){var qr_mc=target_mc.createEmptyMovieClip(instance_name,depth);var cs=1;this.make();for(var row=0;row<this.modules.length;row++){var y=row*cs;for(var col=0;col<this.modules[row].length;col++){var x=col*cs;var dark=this.modules[row][col];if(dark){qr_mc.beginFill(0,100);qr_mc.moveTo(x,y);qr_mc.lineTo(x+cs,y);qr_mc.lineTo(x+cs,y+cs);qr_mc.lineTo(x,y+cs);qr_mc.endFill();}}} |
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return qr_mc;},setupTimingPattern:function(){for(var r=8;r<this.moduleCount-8;r++){if(this.modules[r][6]!=null){continue;} |
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this.modules[r][6]=(r%2==0);} |
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for(var c=8;c<this.moduleCount-8;c++){if(this.modules[6][c]!=null){continue;} |
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this.modules[6][c]=(c%2==0);}},setupPositionAdjustPattern:function(){var pos=QRUtil.getPatternPosition(this.typeNumber);for(var i=0;i<pos.length;i++){for(var j=0;j<pos.length;j++){var row=pos[i];var col=pos[j];if(this.modules[row][col]!=null){continue;} |
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for(var r=-2;r<=2;r++){for(var c=-2;c<=2;c++){if(r==-2||r==2||c==-2||c==2||(r==0&&c==0)){this.modules[row+r][col+c]=true;}else{this.modules[row+r][col+c]=false;}}}}}},setupTypeNumber:function(test){var bits=QRUtil.getBCHTypeNumber(this.typeNumber);for(var i=0;i<18;i++){var mod=(!test&&((bits>>i)&1)==1);this.modules[Math.floor(i/3)][i%3+this.moduleCount-8-3]=mod;} |
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for(var i=0;i<18;i++){var mod=(!test&&((bits>>i)&1)==1);this.modules[i%3+this.moduleCount-8-3][Math.floor(i/3)]=mod;}},setupTypeInfo:function(test,maskPattern){var data=(this.errorCorrectLevel<<3)|maskPattern;var bits=QRUtil.getBCHTypeInfo(data);for(var i=0;i<15;i++){var mod=(!test&&((bits>>i)&1)==1);if(i<6){this.modules[i][8]=mod;}else if(i<8){this.modules[i+1][8]=mod;}else{this.modules[this.moduleCount-15+i][8]=mod;}} |
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for(var i=0;i<15;i++){var mod=(!test&&((bits>>i)&1)==1);if(i<8){this.modules[8][this.moduleCount-i-1]=mod;}else if(i<9){this.modules[8][15-i-1+1]=mod;}else{this.modules[8][15-i-1]=mod;}} |
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this.modules[this.moduleCount-8][8]=(!test);},mapData:function(data,maskPattern){var inc=-1;var row=this.moduleCount-1;var bitIndex=7;var byteIndex=0;for(var col=this.moduleCount-1;col>0;col-=2){if(col==6)col--;while(true){for(var c=0;c<2;c++){if(this.modules[row][col-c]==null){var dark=false;if(byteIndex<data.length){dark=(((data[byteIndex]>>>bitIndex)&1)==1);} |
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var mask=QRUtil.getMask(maskPattern,row,col-c);if(mask){dark=!dark;} |
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this.modules[row][col-c]=dark;bitIndex--;if(bitIndex==-1){byteIndex++;bitIndex=7;}}} |
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row+=inc;if(row<0||this.moduleCount<=row){row-=inc;inc=-inc;break;}}}}};QRCodeModel.PAD0=0xEC;QRCodeModel.PAD1=0x11;QRCodeModel.createData=function(typeNumber,errorCorrectLevel,dataList){var rsBlocks=QRRSBlock.getRSBlocks(typeNumber,errorCorrectLevel);var buffer=new QRBitBuffer();for(var i=0;i<dataList.length;i++){var data=dataList[i];buffer.put(data.mode,4);buffer.put(data.getLength(),QRUtil.getLengthInBits(data.mode,typeNumber));data.write(buffer);} |
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var totalDataCount=0;for(var i=0;i<rsBlocks.length;i++){totalDataCount+=rsBlocks[i].dataCount;} |
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if(buffer.getLengthInBits()>totalDataCount*8){throw new Error("code length overflow. (" |
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+buffer.getLengthInBits() |
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+">" |
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+totalDataCount*8 |
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+")");} |
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if(buffer.getLengthInBits()+4<=totalDataCount*8){buffer.put(0,4);} |
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while(buffer.getLengthInBits()%8!=0){buffer.putBit(false);} |
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while(true){if(buffer.getLengthInBits()>=totalDataCount*8){break;} |
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buffer.put(QRCodeModel.PAD0,8);if(buffer.getLengthInBits()>=totalDataCount*8){break;} |
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buffer.put(QRCodeModel.PAD1,8);} |
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return QRCodeModel.createBytes(buffer,rsBlocks);};QRCodeModel.createBytes=function(buffer,rsBlocks){var offset=0;var maxDcCount=0;var maxEcCount=0;var dcdata=new Array(rsBlocks.length);var ecdata=new Array(rsBlocks.length);for(var r=0;r<rsBlocks.length;r++){var dcCount=rsBlocks[r].dataCount;var ecCount=rsBlocks[r].totalCount-dcCount;maxDcCount=Math.max(maxDcCount,dcCount);maxEcCount=Math.max(maxEcCount,ecCount);dcdata[r]=new Array(dcCount);for(var i=0;i<dcdata[r].length;i++){dcdata[r][i]=0xff&buffer.buffer[i+offset];} |
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offset+=dcCount;var rsPoly=QRUtil.getErrorCorrectPolynomial(ecCount);var rawPoly=new QRPolynomial(dcdata[r],rsPoly.getLength()-1);var modPoly=rawPoly.mod(rsPoly);ecdata[r]=new Array(rsPoly.getLength()-1);for(var i=0;i<ecdata[r].length;i++){var modIndex=i+modPoly.getLength()-ecdata[r].length;ecdata[r][i]=(modIndex>=0)?modPoly.get(modIndex):0;}} |
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var totalCodeCount=0;for(var i=0;i<rsBlocks.length;i++){totalCodeCount+=rsBlocks[i].totalCount;} |
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var data=new Array(totalCodeCount);var index=0;for(var i=0;i<maxDcCount;i++){for(var r=0;r<rsBlocks.length;r++){if(i<dcdata[r].length){data[index++]=dcdata[r][i];}}} |
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for(var i=0;i<maxEcCount;i++){for(var r=0;r<rsBlocks.length;r++){if(i<ecdata[r].length){data[index++]=ecdata[r][i];}}} |
||||
|
return data;};var QRMode={MODE_NUMBER:1<<0,MODE_ALPHA_NUM:1<<1,MODE_8BIT_BYTE:1<<2,MODE_KANJI:1<<3};var QRErrorCorrectLevel={L:1,M:0,Q:3,H:2};var QRMaskPattern={PATTERN000:0,PATTERN001:1,PATTERN010:2,PATTERN011:3,PATTERN100:4,PATTERN101:5,PATTERN110:6,PATTERN111:7};var QRUtil={PATTERN_POSITION_TABLE:[[],[6,18],[6,22],[6,26],[6,30],[6,34],[6,22,38],[6,24,42],[6,26,46],[6,28,50],[6,30,54],[6,32,58],[6,34,62],[6,26,46,66],[6,26,48,70],[6,26,50,74],[6,30,54,78],[6,30,56,82],[6,30,58,86],[6,34,62,90],[6,28,50,72,94],[6,26,50,74,98],[6,30,54,78,102],[6,28,54,80,106],[6,32,58,84,110],[6,30,58,86,114],[6,34,62,90,118],[6,26,50,74,98,122],[6,30,54,78,102,126],[6,26,52,78,104,130],[6,30,56,82,108,134],[6,34,60,86,112,138],[6,30,58,86,114,142],[6,34,62,90,118,146],[6,30,54,78,102,126,150],[6,24,50,76,102,128,154],[6,28,54,80,106,132,158],[6,32,58,84,110,136,162],[6,26,54,82,110,138,166],[6,30,58,86,114,142,170]],G15:(1<<10)|(1<<8)|(1<<5)|(1<<4)|(1<<2)|(1<<1)|(1<<0),G18:(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<5)|(1<<2)|(1<<0),G15_MASK:(1<<14)|(1<<12)|(1<<10)|(1<<4)|(1<<1),getBCHTypeInfo:function(data){var d=data<<10;while(QRUtil.getBCHDigit(d)-QRUtil.getBCHDigit(QRUtil.G15)>=0){d^=(QRUtil.G15<<(QRUtil.getBCHDigit(d)-QRUtil.getBCHDigit(QRUtil.G15)));} |
||||
|
return((data<<10)|d)^QRUtil.G15_MASK;},getBCHTypeNumber:function(data){var d=data<<12;while(QRUtil.getBCHDigit(d)-QRUtil.getBCHDigit(QRUtil.G18)>=0){d^=(QRUtil.G18<<(QRUtil.getBCHDigit(d)-QRUtil.getBCHDigit(QRUtil.G18)));} |
||||
|
return(data<<12)|d;},getBCHDigit:function(data){var digit=0;while(data!=0){digit++;data>>>=1;} |
||||
|
return digit;},getPatternPosition:function(typeNumber){return QRUtil.PATTERN_POSITION_TABLE[typeNumber-1];},getMask:function(maskPattern,i,j){switch(maskPattern){case QRMaskPattern.PATTERN000:return(i+j)%2==0;case QRMaskPattern.PATTERN001:return i%2==0;case QRMaskPattern.PATTERN010:return j%3==0;case QRMaskPattern.PATTERN011:return(i+j)%3==0;case QRMaskPattern.PATTERN100:return(Math.floor(i/2)+Math.floor(j/3))%2==0;case QRMaskPattern.PATTERN101:return(i*j)%2+(i*j)%3==0;case QRMaskPattern.PATTERN110:return((i*j)%2+(i*j)%3)%2==0;case QRMaskPattern.PATTERN111:return((i*j)%3+(i+j)%2)%2==0;default:throw new Error("bad maskPattern:"+maskPattern);}},getErrorCorrectPolynomial:function(errorCorrectLength){var a=new QRPolynomial([1],0);for(var i=0;i<errorCorrectLength;i++){a=a.multiply(new QRPolynomial([1,QRMath.gexp(i)],0));} |
||||
|
return a;},getLengthInBits:function(mode,type){if(1<=type&&type<10){switch(mode){case QRMode.MODE_NUMBER:return 10;case QRMode.MODE_ALPHA_NUM:return 9;case QRMode.MODE_8BIT_BYTE:return 8;case QRMode.MODE_KANJI:return 8;default:throw new Error("mode:"+mode);}}else if(type<27){switch(mode){case QRMode.MODE_NUMBER:return 12;case QRMode.MODE_ALPHA_NUM:return 11;case QRMode.MODE_8BIT_BYTE:return 16;case QRMode.MODE_KANJI:return 10;default:throw new Error("mode:"+mode);}}else if(type<41){switch(mode){case QRMode.MODE_NUMBER:return 14;case QRMode.MODE_ALPHA_NUM:return 13;case QRMode.MODE_8BIT_BYTE:return 16;case QRMode.MODE_KANJI:return 12;default:throw new Error("mode:"+mode);}}else{throw new Error("type:"+type);}},getLostPoint:function(qrCode){var moduleCount=qrCode.getModuleCount();var lostPoint=0;for(var row=0;row<moduleCount;row++){for(var col=0;col<moduleCount;col++){var sameCount=0;var dark=qrCode.isDark(row,col);for(var r=-1;r<=1;r++){if(row+r<0||moduleCount<=row+r){continue;} |
||||
|
for(var c=-1;c<=1;c++){if(col+c<0||moduleCount<=col+c){continue;} |
||||
|
if(r==0&&c==0){continue;} |
||||
|
if(dark==qrCode.isDark(row+r,col+c)){sameCount++;}}} |
||||
|
if(sameCount>5){lostPoint+=(3+sameCount-5);}}} |
||||
|
for(var row=0;row<moduleCount-1;row++){for(var col=0;col<moduleCount-1;col++){var count=0;if(qrCode.isDark(row,col))count++;if(qrCode.isDark(row+1,col))count++;if(qrCode.isDark(row,col+1))count++;if(qrCode.isDark(row+1,col+1))count++;if(count==0||count==4){lostPoint+=3;}}} |
||||
|
for(var row=0;row<moduleCount;row++){for(var col=0;col<moduleCount-6;col++){if(qrCode.isDark(row,col)&&!qrCode.isDark(row,col+1)&&qrCode.isDark(row,col+2)&&qrCode.isDark(row,col+3)&&qrCode.isDark(row,col+4)&&!qrCode.isDark(row,col+5)&&qrCode.isDark(row,col+6)){lostPoint+=40;}}} |
||||
|
for(var col=0;col<moduleCount;col++){for(var row=0;row<moduleCount-6;row++){if(qrCode.isDark(row,col)&&!qrCode.isDark(row+1,col)&&qrCode.isDark(row+2,col)&&qrCode.isDark(row+3,col)&&qrCode.isDark(row+4,col)&&!qrCode.isDark(row+5,col)&&qrCode.isDark(row+6,col)){lostPoint+=40;}}} |
||||
|
var darkCount=0;for(var col=0;col<moduleCount;col++){for(var row=0;row<moduleCount;row++){if(qrCode.isDark(row,col)){darkCount++;}}} |
||||
|
var ratio=Math.abs(100*darkCount/moduleCount/moduleCount-50)/5;lostPoint+=ratio*10;return lostPoint;}};var QRMath={glog:function(n){if(n<1){throw new Error("glog("+n+")");} |
||||
|
return QRMath.LOG_TABLE[n];},gexp:function(n){while(n<0){n+=255;} |
||||
|
while(n>=256){n-=255;} |
||||
|
return QRMath.EXP_TABLE[n];},EXP_TABLE:new Array(256),LOG_TABLE:new Array(256)};for(var i=0;i<8;i++){QRMath.EXP_TABLE[i]=1<<i;} |
||||
|
for(var i=8;i<256;i++){QRMath.EXP_TABLE[i]=QRMath.EXP_TABLE[i-4]^QRMath.EXP_TABLE[i-5]^QRMath.EXP_TABLE[i-6]^QRMath.EXP_TABLE[i-8];} |
||||
|
for(var i=0;i<255;i++){QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]]=i;} |
||||
|
function QRPolynomial(num,shift){if(num.length==undefined){throw new Error(num.length+"/"+shift);} |
||||
|
var offset=0;while(offset<num.length&&num[offset]==0){offset++;} |
||||
|
this.num=new Array(num.length-offset+shift);for(var i=0;i<num.length-offset;i++){this.num[i]=num[i+offset];}} |
||||
|
QRPolynomial.prototype={get:function(index){return this.num[index];},getLength:function(){return this.num.length;},multiply:function(e){var num=new Array(this.getLength()+e.getLength()-1);for(var i=0;i<this.getLength();i++){for(var j=0;j<e.getLength();j++){num[i+j]^=QRMath.gexp(QRMath.glog(this.get(i))+QRMath.glog(e.get(j)));}} |
||||
|
return new QRPolynomial(num,0);},mod:function(e){if(this.getLength()-e.getLength()<0){return this;} |
||||
|
var ratio=QRMath.glog(this.get(0))-QRMath.glog(e.get(0));var num=new Array(this.getLength());for(var i=0;i<this.getLength();i++){num[i]=this.get(i);} |
||||
|
for(var i=0;i<e.getLength();i++){num[i]^=QRMath.gexp(QRMath.glog(e.get(i))+ratio);} |
||||
|
return new QRPolynomial(num,0).mod(e);}};function QRRSBlock(totalCount,dataCount){this.totalCount=totalCount;this.dataCount=dataCount;} |
||||
|
QRRSBlock.RS_BLOCK_TABLE=[[1,26,19],[1,26,16],[1,26,13],[1,26,9],[1,44,34],[1,44,28],[1,44,22],[1,44,16],[1,70,55],[1,70,44],[2,35,17],[2,35,13],[1,100,80],[2,50,32],[2,50,24],[4,25,9],[1,134,108],[2,67,43],[2,33,15,2,34,16],[2,33,11,2,34,12],[2,86,68],[4,43,27],[4,43,19],[4,43,15],[2,98,78],[4,49,31],[2,32,14,4,33,15],[4,39,13,1,40,14],[2,121,97],[2,60,38,2,61,39],[4,40,18,2,41,19],[4,40,14,2,41,15],[2,146,116],[3,58,36,2,59,37],[4,36,16,4,37,17],[4,36,12,4,37,13],[2,86,68,2,87,69],[4,69,43,1,70,44],[6,43,19,2,44,20],[6,43,15,2,44,16],[4,101,81],[1,80,50,4,81,51],[4,50,22,4,51,23],[3,36,12,8,37,13],[2,116,92,2,117,93],[6,58,36,2,59,37],[4,46,20,6,47,21],[7,42,14,4,43,15],[4,133,107],[8,59,37,1,60,38],[8,44,20,4,45,21],[12,33,11,4,34,12],[3,145,115,1,146,116],[4,64,40,5,65,41],[11,36,16,5,37,17],[11,36,12,5,37,13],[5,109,87,1,110,88],[5,65,41,5,66,42],[5,54,24,7,55,25],[11,36,12],[5,122,98,1,123,99],[7,73,45,3,74,46],[15,43,19,2,44,20],[3,45,15,13,46,16],[1,135,107,5,136,108],[10,74,46,1,75,47],[1,50,22,15,51,23],[2,42,14,17,43,15],[5,150,120,1,151,121],[9,69,43,4,70,44],[17,50,22,1,51,23],[2,42,14,19,43,15],[3,141,113,4,142,114],[3,70,44,11,71,45],[17,47,21,4,48,22],[9,39,13,16,40,14],[3,135,107,5,136,108],[3,67,41,13,68,42],[15,54,24,5,55,25],[15,43,15,10,44,16],[4,144,116,4,145,117],[17,68,42],[17,50,22,6,51,23],[19,46,16,6,47,17],[2,139,111,7,140,112],[17,74,46],[7,54,24,16,55,25],[34,37,13],[4,151,121,5,152,122],[4,75,47,14,76,48],[11,54,24,14,55,25],[16,45,15,14,46,16],[6,147,117,4,148,118],[6,73,45,14,74,46],[11,54,24,16,55,25],[30,46,16,2,47,17],[8,132,106,4,133,107],[8,75,47,13,76,48],[7,54,24,22,55,25],[22,45,15,13,46,16],[10,142,114,2,143,115],[19,74,46,4,75,47],[28,50,22,6,51,23],[33,46,16,4,47,17],[8,152,122,4,153,123],[22,73,45,3,74,46],[8,53,23,26,54,24],[12,45,15,28,46,16],[3,147,117,10,148,118],[3,73,45,23,74,46],[4,54,24,31,55,25],[11,45,15,31,46,16],[7,146,116,7,147,117],[21,73,45,7,74,46],[1,53,23,37,54,24],[19,45,15,26,46,16],[5,145,115,10,146,116],[19,75,47,10,76,48],[15,54,24,25,55,25],[23,45,15,25,46,16],[13,145,115,3,146,116],[2,74,46,29,75,47],[42,54,24,1,55,25],[23,45,15,28,46,16],[17,145,115],[10,74,46,23,75,47],[10,54,24,35,55,25],[19,45,15,35,46,16],[17,145,115,1,146,116],[14,74,46,21,75,47],[29,54,24,19,55,25],[11,45,15,46,46,16],[13,145,115,6,146,116],[14,74,46,23,75,47],[44,54,24,7,55,25],[59,46,16,1,47,17],[12,151,121,7,152,122],[12,75,47,26,76,48],[39,54,24,14,55,25],[22,45,15,41,46,16],[6,151,121,14,152,122],[6,75,47,34,76,48],[46,54,24,10,55,25],[2,45,15,64,46,16],[17,152,122,4,153,123],[29,74,46,14,75,47],[49,54,24,10,55,25],[24,45,15,46,46,16],[4,152,122,18,153,123],[13,74,46,32,75,47],[48,54,24,14,55,25],[42,45,15,32,46,16],[20,147,117,4,148,118],[40,75,47,7,76,48],[43,54,24,22,55,25],[10,45,15,67,46,16],[19,148,118,6,149,119],[18,75,47,31,76,48],[34,54,24,34,55,25],[20,45,15,61,46,16]];QRRSBlock.getRSBlocks=function(typeNumber,errorCorrectLevel){var rsBlock=QRRSBlock.getRsBlockTable(typeNumber,errorCorrectLevel);if(rsBlock==undefined){throw new Error("bad rs block @ typeNumber:"+typeNumber+"/errorCorrectLevel:"+errorCorrectLevel);} |
||||
|
var length=rsBlock.length/3;var list=[];for(var i=0;i<length;i++){var count=rsBlock[i*3+0];var totalCount=rsBlock[i*3+1];var dataCount=rsBlock[i*3+2];for(var j=0;j<count;j++){list.push(new QRRSBlock(totalCount,dataCount));}} |
||||
|
return list;};QRRSBlock.getRsBlockTable=function(typeNumber,errorCorrectLevel){switch(errorCorrectLevel){case QRErrorCorrectLevel.L:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber-1)*4+0];case QRErrorCorrectLevel.M:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber-1)*4+1];case QRErrorCorrectLevel.Q:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber-1)*4+2];case QRErrorCorrectLevel.H:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber-1)*4+3];default:return undefined;}};function QRBitBuffer(){this.buffer=[];this.length=0;} |
||||
|
QRBitBuffer.prototype={get:function(index){var bufIndex=Math.floor(index/8);return((this.buffer[bufIndex]>>>(7-index%8))&1)==1;},put:function(num,length){for(var i=0;i<length;i++){this.putBit(((num>>>(length-i-1))&1)==1);}},getLengthInBits:function(){return this.length;},putBit:function(bit){var bufIndex=Math.floor(this.length/8);if(this.buffer.length<=bufIndex){this.buffer.push(0);} |
||||
|
if(bit){this.buffer[bufIndex]|=(0x80>>>(this.length%8));} |
||||
|
this.length++;}};var QRCodeLimitLength=[[17,14,11,7],[32,26,20,14],[53,42,32,24],[78,62,46,34],[106,84,60,44],[134,106,74,58],[154,122,86,64],[192,152,108,84],[230,180,130,98],[271,213,151,119],[321,251,177,137],[367,287,203,155],[425,331,241,177],[458,362,258,194],[520,412,292,220],[586,450,322,250],[644,504,364,280],[718,560,394,310],[792,624,442,338],[858,666,482,382],[929,711,509,403],[1003,779,565,439],[1091,857,611,461],[1171,911,661,511],[1273,997,715,535],[1367,1059,751,593],[1465,1125,805,625],[1528,1190,868,658],[1628,1264,908,698],[1732,1370,982,742],[1840,1452,1030,790],[1952,1538,1112,842],[2068,1628,1168,898],[2188,1722,1228,958],[2303,1809,1283,983],[2431,1911,1351,1051],[2563,1989,1423,1093],[2699,2099,1499,1139],[2809,2213,1579,1219],[2953,2331,1663,1273]]; |
||||
|
|
||||
|
function _isSupportCanvas() { |
||||
|
return typeof CanvasRenderingContext2D != "undefined"; |
||||
|
} |
||||
|
|
||||
|
// android 2.x doesn't support Data-URI spec
|
||||
|
function _getAndroid() { |
||||
|
var android = false; |
||||
|
var sAgent = navigator.userAgent; |
||||
|
|
||||
|
if (/android/i.test(sAgent)) { // android
|
||||
|
android = true; |
||||
|
var aMat = sAgent.toString().match(/android ([0-9]\.[0-9])/i); |
||||
|
|
||||
|
if (aMat && aMat[1]) { |
||||
|
android = parseFloat(aMat[1]); |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
return android; |
||||
|
} |
||||
|
|
||||
|
var svgDrawer = (function() { |
||||
|
|
||||
|
var Drawing = function (el, htOption) { |
||||
|
this._el = el; |
||||
|
this._htOption = htOption; |
||||
|
}; |
||||
|
|
||||
|
Drawing.prototype.draw = function (oQRCode) { |
||||
|
var _htOption = this._htOption; |
||||
|
var _el = this._el; |
||||
|
var nCount = oQRCode.getModuleCount(); |
||||
|
var nWidth = Math.floor(_htOption.width / nCount); |
||||
|
var nHeight = Math.floor(_htOption.height / nCount); |
||||
|
|
||||
|
this.clear(); |
||||
|
|
||||
|
function makeSVG(tag, attrs) { |
||||
|
var el = document.createElementNS('http://www.w3.org/2000/svg', tag); |
||||
|
for (var k in attrs) |
||||
|
if (attrs.hasOwnProperty(k)) el.setAttribute(k, attrs[k]); |
||||
|
return el; |
||||
|
} |
||||
|
|
||||
|
var svg = makeSVG("svg" , {'viewBox': '0 0 ' + String(nCount) + " " + String(nCount), 'width': '100%', 'height': '100%', 'fill': _htOption.colorLight}); |
||||
|
svg.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xlink", "http://www.w3.org/1999/xlink"); |
||||
|
_el.appendChild(svg); |
||||
|
|
||||
|
svg.appendChild(makeSVG("rect", {"fill": _htOption.colorLight, "width": "100%", "height": "100%"})); |
||||
|
svg.appendChild(makeSVG("rect", {"fill": _htOption.colorDark, "width": "1", "height": "1", "id": "template"})); |
||||
|
|
||||
|
for (var row = 0; row < nCount; row++) { |
||||
|
for (var col = 0; col < nCount; col++) { |
||||
|
if (oQRCode.isDark(row, col)) { |
||||
|
var child = makeSVG("use", {"x": String(col), "y": String(row)}); |
||||
|
child.setAttributeNS("http://www.w3.org/1999/xlink", "href", "#template") |
||||
|
svg.appendChild(child); |
||||
|
} |
||||
|
} |
||||
|
} |
||||
|
}; |
||||
|
Drawing.prototype.clear = function () { |
||||
|
while (this._el.hasChildNodes()) |
||||
|
this._el.removeChild(this._el.lastChild); |
||||
|
}; |
||||
|
return Drawing; |
||||
|
})(); |
||||
|
|
||||
|
var useSVG = document.documentElement.tagName.toLowerCase() === "svg"; |
||||
|
|
||||
|
// Drawing in DOM by using Table tag
|
||||
|
var Drawing = useSVG ? svgDrawer : !_isSupportCanvas() ? (function () { |
||||
|
var Drawing = function (el, htOption) { |
||||
|
this._el = el; |
||||
|
this._htOption = htOption; |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* Draw the QRCode |
||||
|
* |
||||
|
* @param {QRCode} oQRCode |
||||
|
*/ |
||||
|
Drawing.prototype.draw = function (oQRCode) { |
||||
|
var _htOption = this._htOption; |
||||
|
var _el = this._el; |
||||
|
var nCount = oQRCode.getModuleCount(); |
||||
|
var nWidth = Math.floor(_htOption.width / nCount); |
||||
|
var nHeight = Math.floor(_htOption.height / nCount); |
||||
|
var aHTML = ['<table style="border:0;border-collapse:collapse;">']; |
||||
|
|
||||
|
for (var row = 0; row < nCount; row++) { |
||||
|
aHTML.push('<tr>'); |
||||
|
|
||||
|
for (var col = 0; col < nCount; col++) { |
||||
|
aHTML.push('<td style="border:0;border-collapse:collapse;padding:0;margin:0;width:' + nWidth + 'px;height:' + nHeight + 'px;background-color:' + (oQRCode.isDark(row, col) ? _htOption.colorDark : _htOption.colorLight) + ';"></td>'); |
||||
|
} |
||||
|
|
||||
|
aHTML.push('</tr>'); |
||||
|
} |
||||
|
|
||||
|
aHTML.push('</table>'); |
||||
|
_el.innerHTML = aHTML.join(''); |
||||
|
|
||||
|
// Fix the margin values as real size.
|
||||
|
var elTable = _el.childNodes[0]; |
||||
|
var nLeftMarginTable = (_htOption.width - elTable.offsetWidth) / 2; |
||||
|
var nTopMarginTable = (_htOption.height - elTable.offsetHeight) / 2; |
||||
|
|
||||
|
if (nLeftMarginTable > 0 && nTopMarginTable > 0) { |
||||
|
elTable.style.margin = nTopMarginTable + "px " + nLeftMarginTable + "px"; |
||||
|
} |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* Clear the QRCode |
||||
|
*/ |
||||
|
Drawing.prototype.clear = function () { |
||||
|
this._el.innerHTML = ''; |
||||
|
}; |
||||
|
|
||||
|
return Drawing; |
||||
|
})() : (function () { // Drawing in Canvas
|
||||
|
function _onMakeImage() { |
||||
|
this._elImage.src = this._elCanvas.toDataURL("image/png"); |
||||
|
this._elImage.style.display = "block"; |
||||
|
this._elCanvas.style.display = "none"; |
||||
|
} |
||||
|
|
||||
|
// Android 2.1 bug workaround
|
||||
|
// http://code.google.com/p/android/issues/detail?id=5141
|
||||
|
if (this._android && this._android <= 2.1) { |
||||
|
var factor = 1 / window.devicePixelRatio; |
||||
|
var drawImage = CanvasRenderingContext2D.prototype.drawImage; |
||||
|
CanvasRenderingContext2D.prototype.drawImage = function (image, sx, sy, sw, sh, dx, dy, dw, dh) { |
||||
|
if (("nodeName" in image) && /img/i.test(image.nodeName)) { |
||||
|
for (var i = arguments.length - 1; i >= 1; i--) { |
||||
|
arguments[i] = arguments[i] * factor; |
||||
|
} |
||||
|
} else if (typeof dw == "undefined") { |
||||
|
arguments[1] *= factor; |
||||
|
arguments[2] *= factor; |
||||
|
arguments[3] *= factor; |
||||
|
arguments[4] *= factor; |
||||
|
} |
||||
|
|
||||
|
drawImage.apply(this, arguments); |
||||
|
}; |
||||
|
} |
||||
|
|
||||
|
/** |
||||
|
* Check whether the user's browser supports Data URI or not |
||||
|
* |
||||
|
* @private |
||||
|
* @param {Function} fSuccess Occurs if it supports Data URI |
||||
|
* @param {Function} fFail Occurs if it doesn't support Data URI |
||||
|
*/ |
||||
|
function _safeSetDataURI(fSuccess, fFail) { |
||||
|
var self = this; |
||||
|
self._fFail = fFail; |
||||
|
self._fSuccess = fSuccess; |
||||
|
|
||||
|
// Check it just once
|
||||
|
if (self._bSupportDataURI === null) { |
||||
|
var el = document.createElement("img"); |
||||
|
var fOnError = function() { |
||||
|
self._bSupportDataURI = false; |
||||
|
|
||||
|
if (self._fFail) { |
||||
|
self._fFail.call(self); |
||||
|
} |
||||
|
}; |
||||
|
var fOnSuccess = function() { |
||||
|
self._bSupportDataURI = true; |
||||
|
|
||||
|
if (self._fSuccess) { |
||||
|
self._fSuccess.call(self); |
||||
|
} |
||||
|
}; |
||||
|
|
||||
|
el.onabort = fOnError; |
||||
|
el.onerror = fOnError; |
||||
|
el.onload = fOnSuccess; |
||||
|
el.src = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="; // the Image contains 1px data.
|
||||
|
return; |
||||
|
} else if (self._bSupportDataURI === true && self._fSuccess) { |
||||
|
self._fSuccess.call(self); |
||||
|
} else if (self._bSupportDataURI === false && self._fFail) { |
||||
|
self._fFail.call(self); |
||||
|
} |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* Drawing QRCode by using canvas |
||||
|
* |
||||
|
* @constructor |
||||
|
* @param {HTMLElement} el |
||||
|
* @param {Object} htOption QRCode Options |
||||
|
*/ |
||||
|
var Drawing = function (el, htOption) { |
||||
|
this._bIsPainted = false; |
||||
|
this._android = _getAndroid(); |
||||
|
|
||||
|
this._htOption = htOption; |
||||
|
this._elCanvas = document.createElement("canvas"); |
||||
|
this._elCanvas.width = htOption.width; |
||||
|
this._elCanvas.height = htOption.height; |
||||
|
el.appendChild(this._elCanvas); |
||||
|
this._el = el; |
||||
|
this._oContext = this._elCanvas.getContext("2d"); |
||||
|
this._bIsPainted = false; |
||||
|
this._elImage = document.createElement("img"); |
||||
|
this._elImage.alt = "Scan me!"; |
||||
|
this._elImage.style.display = "none"; |
||||
|
this._el.appendChild(this._elImage); |
||||
|
this._bSupportDataURI = null; |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* Draw the QRCode |
||||
|
* |
||||
|
* @param {QRCode} oQRCode |
||||
|
*/ |
||||
|
Drawing.prototype.draw = function (oQRCode) { |
||||
|
var _elImage = this._elImage; |
||||
|
var _oContext = this._oContext; |
||||
|
var _htOption = this._htOption; |
||||
|
|
||||
|
var nCount = oQRCode.getModuleCount(); |
||||
|
var nWidth = _htOption.width / nCount; |
||||
|
var nHeight = _htOption.height / nCount; |
||||
|
var nRoundedWidth = Math.round(nWidth); |
||||
|
var nRoundedHeight = Math.round(nHeight); |
||||
|
|
||||
|
_elImage.style.display = "none"; |
||||
|
this.clear(); |
||||
|
|
||||
|
for (var row = 0; row < nCount; row++) { |
||||
|
for (var col = 0; col < nCount; col++) { |
||||
|
var bIsDark = oQRCode.isDark(row, col); |
||||
|
var nLeft = col * nWidth; |
||||
|
var nTop = row * nHeight; |
||||
|
_oContext.strokeStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight; |
||||
|
_oContext.lineWidth = 1; |
||||
|
_oContext.fillStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight; |
||||
|
_oContext.fillRect(nLeft, nTop, nWidth, nHeight); |
||||
|
|
||||
|
// 안티 앨리어싱 방지 처리
|
||||
|
_oContext.strokeRect( |
||||
|
Math.floor(nLeft) + 0.5, |
||||
|
Math.floor(nTop) + 0.5, |
||||
|
nRoundedWidth, |
||||
|
nRoundedHeight |
||||
|
); |
||||
|
|
||||
|
_oContext.strokeRect( |
||||
|
Math.ceil(nLeft) - 0.5, |
||||
|
Math.ceil(nTop) - 0.5, |
||||
|
nRoundedWidth, |
||||
|
nRoundedHeight |
||||
|
); |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
this._bIsPainted = true; |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* Make the image from Canvas if the browser supports Data URI. |
||||
|
*/ |
||||
|
Drawing.prototype.makeImage = function () { |
||||
|
if (this._bIsPainted) { |
||||
|
_safeSetDataURI.call(this, _onMakeImage); |
||||
|
} |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* Return whether the QRCode is painted or not |
||||
|
* |
||||
|
* @return {Boolean} |
||||
|
*/ |
||||
|
Drawing.prototype.isPainted = function () { |
||||
|
return this._bIsPainted; |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* Clear the QRCode |
||||
|
*/ |
||||
|
Drawing.prototype.clear = function () { |
||||
|
this._oContext.clearRect(0, 0, this._elCanvas.width, this._elCanvas.height); |
||||
|
this._bIsPainted = false; |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* @private |
||||
|
* @param {Number} nNumber |
||||
|
*/ |
||||
|
Drawing.prototype.round = function (nNumber) { |
||||
|
if (!nNumber) { |
||||
|
return nNumber; |
||||
|
} |
||||
|
|
||||
|
return Math.floor(nNumber * 1000) / 1000; |
||||
|
}; |
||||
|
|
||||
|
return Drawing; |
||||
|
})(); |
||||
|
|
||||
|
/** |
||||
|
* Get the type by string length |
||||
|
* |
||||
|
* @private |
||||
|
* @param {String} sText |
||||
|
* @param {Number} nCorrectLevel |
||||
|
* @return {Number} type |
||||
|
*/ |
||||
|
function _getTypeNumber(sText, nCorrectLevel) { |
||||
|
var nType = 1; |
||||
|
var length = _getUTF8Length(sText); |
||||
|
|
||||
|
for (var i = 0, len = QRCodeLimitLength.length; i <= len; i++) { |
||||
|
var nLimit = 0; |
||||
|
|
||||
|
switch (nCorrectLevel) { |
||||
|
case QRErrorCorrectLevel.L : |
||||
|
nLimit = QRCodeLimitLength[i][0]; |
||||
|
break; |
||||
|
case QRErrorCorrectLevel.M : |
||||
|
nLimit = QRCodeLimitLength[i][1]; |
||||
|
break; |
||||
|
case QRErrorCorrectLevel.Q : |
||||
|
nLimit = QRCodeLimitLength[i][2]; |
||||
|
break; |
||||
|
case QRErrorCorrectLevel.H : |
||||
|
nLimit = QRCodeLimitLength[i][3]; |
||||
|
break; |
||||
|
} |
||||
|
|
||||
|
if (length <= nLimit) { |
||||
|
break; |
||||
|
} else { |
||||
|
nType++; |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
if (nType > QRCodeLimitLength.length) { |
||||
|
throw new Error("Too long data"); |
||||
|
} |
||||
|
|
||||
|
return nType; |
||||
|
} |
||||
|
|
||||
|
function _getUTF8Length(sText) { |
||||
|
var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a'); |
||||
|
return replacedText.length + (replacedText.length != sText ? 3 : 0); |
||||
|
} |
||||
|
|
||||
|
/** |
||||
|
* @class QRCode |
||||
|
* @constructor |
||||
|
* @example |
||||
|
* new QRCode(document.getElementById("test"), "http://jindo.dev.naver.com/collie"); |
||||
|
* |
||||
|
* @example |
||||
|
* var oQRCode = new QRCode("test", { |
||||
|
* text : "http://naver.com", |
||||
|
* width : 128, |
||||
|
* height : 128 |
||||
|
* }); |
||||
|
* |
||||
|
* oQRCode.clear(); // Clear the QRCode.
|
||||
|
* oQRCode.makeCode("http://map.naver.com"); // Re-create the QRCode.
|
||||
|
* |
||||
|
* @param {HTMLElement|String} el target element or 'id' attribute of element. |
||||
|
* @param {Object|String} vOption |
||||
|
* @param {String} vOption.text QRCode link data |
||||
|
* @param {Number} [vOption.width=256] |
||||
|
* @param {Number} [vOption.height=256] |
||||
|
* @param {String} [vOption.colorDark="#000000"] |
||||
|
* @param {String} [vOption.colorLight="#ffffff"] |
||||
|
* @param {QRCode.CorrectLevel} [vOption.correctLevel=QRCode.CorrectLevel.H] [L|M|Q|H] |
||||
|
*/ |
||||
|
QRCode = function (el, vOption) { |
||||
|
this._htOption = { |
||||
|
width : 256, |
||||
|
height : 256, |
||||
|
typeNumber : 4, |
||||
|
colorDark : "#000000", |
||||
|
colorLight : "#ffffff", |
||||
|
correctLevel : QRErrorCorrectLevel.H |
||||
|
}; |
||||
|
|
||||
|
if (typeof vOption === 'string') { |
||||
|
vOption = { |
||||
|
text : vOption |
||||
|
}; |
||||
|
} |
||||
|
|
||||
|
// Overwrites options
|
||||
|
if (vOption) { |
||||
|
for (var i in vOption) { |
||||
|
this._htOption[i] = vOption[i]; |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
if (typeof el == "string") { |
||||
|
el = document.getElementById(el); |
||||
|
} |
||||
|
|
||||
|
if (this._htOption.useSVG) { |
||||
|
Drawing = svgDrawer; |
||||
|
} |
||||
|
|
||||
|
this._android = _getAndroid(); |
||||
|
this._el = el; |
||||
|
this._oQRCode = null; |
||||
|
this._oDrawing = new Drawing(this._el, this._htOption); |
||||
|
|
||||
|
if (this._htOption.text) { |
||||
|
this.makeCode(this._htOption.text); |
||||
|
} |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* Make the QRCode |
||||
|
* |
||||
|
* @param {String} sText link data |
||||
|
*/ |
||||
|
QRCode.prototype.makeCode = function (sText) { |
||||
|
this._oQRCode = new QRCodeModel(_getTypeNumber(sText, this._htOption.correctLevel), this._htOption.correctLevel); |
||||
|
this._oQRCode.addData(sText); |
||||
|
this._oQRCode.make(); |
||||
|
this._el.title = sText; |
||||
|
this._oDrawing.draw(this._oQRCode); |
||||
|
this.makeImage(); |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* Make the Image from Canvas element |
||||
|
* - It occurs automatically |
||||
|
* - Android below 3 doesn't support Data-URI spec. |
||||
|
* |
||||
|
* @private |
||||
|
*/ |
||||
|
QRCode.prototype.makeImage = function () { |
||||
|
if (typeof this._oDrawing.makeImage == "function" && (!this._android || this._android >= 3)) { |
||||
|
this._oDrawing.makeImage(); |
||||
|
} |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* Clear the QRCode |
||||
|
*/ |
||||
|
QRCode.prototype.clear = function () { |
||||
|
this._oDrawing.clear(); |
||||
|
}; |
||||
|
|
||||
|
/** |
||||
|
* @name QRCode.CorrectLevel |
||||
|
*/ |
||||
|
QRCode.CorrectLevel = QRErrorCorrectLevel; |
||||
|
})(); |
||||
File diff suppressed because one or more lines are too long
@ -0,0 +1,10 @@ |
|||||
|
<?xml version="1.0"?> |
||||
|
<libraries> |
||||
|
<library> |
||||
|
<location>js/qrcode/qrcode.js</location> |
||||
|
<name>jquery.qrcode.js</name> |
||||
|
<version>1.0</version> |
||||
|
<license>MIT</license> |
||||
|
<licenseversion></licenseversion> |
||||
|
</library> |
||||
|
</libraries> |
||||
Loading…
Reference in new issue