UnknownObject/jquery-qrcode
1
0
Fork 0
mirror of https://github.com/lrsjng/jquery-qrcode.git synced 2026-08-13 04:11:36 +08:00
Code Issues Packages Projects Releases Wiki Activity

Maintenance.

Browse Source
This commit is contained in:
Lars Jung
2016-05-27 00:25:19 +02:00
parent a186351387
commit 761ecaa0c9
7 changed files with 135 additions and 129 deletions
Download Patch File Download Diff File Expand all files Collapse all files
dist/jquery-qrcode.js
Vendored
+49 -46
View File
@@ -1,19 +1,27 @@
/*! jquery-qrcode v0.13.4 - https://larsjung.de/jquery-qrcode/ */
/*! jquery-qrcode v0.14.0 - https://larsjung.de/jquery-qrcode/ */
(function (vendor_qrcode) {
'use strict';
var $ = jQuery; // eslint-disable-line no-undef
var jq = window.jQuery;
// Check if canvas is available in the browser (as Modernizr does)
var hasCanvas = (function () {
var elem = document.createElement('canvas');
return !!(elem.getContext && elem.getContext('2d'));
}());
// Wrapper for the original QR code generator.
function QRCode(text, level, version, quiet) {
var qr = vendor_qrcode(version, level);
qr.addData(text);
qr.make();
function createQRCode(text, level, version, quiet) {
var qr = {};
var vqr = vendor_qrcode(version, level);
vqr.addData(text);
vqr.make();
quiet = quiet || 0;
var qrModuleCount = qr.getModuleCount();
var quietModuleCount = qr.getModuleCount() + 2 * quiet;
var qrModuleCount = vqr.getModuleCount();
var quietModuleCount = vqr.getModuleCount() + 2 * quiet;
function isDark(row, col) {
row -= quiet;
@@ -22,15 +30,14 @@
if (row < 0 || row >= qrModuleCount || col < 0 || col >= qrModuleCount) {
return false;
}
return qr.isDark(row, col);
return vqr.isDark(row, col);
}
var addBlank = function (l, t, r, b) {
var prevIsDark = this.isDark; // eslint-disable-line no-invalid-this
function addBlank(l, t, r, b) {
var prevIsDark = qr.isDark;
var moduleSize = 1 / quietModuleCount;
this.isDark = function (row, col) { // eslint-disable-line no-invalid-this
qr.isDark = function (row, col) {
var ml = col * moduleSize;
var mt = row * moduleSize;
var mr = ml + moduleSize;
@@ -38,39 +45,35 @@
return prevIsDark(row, col) && (l > mr || ml > r || t > mb || mt > b);
};
};
}
this.text = text;
this.level = level;
this.version = version;
this.moduleCount = quietModuleCount;
this.isDark = isDark;
this.addBlank = addBlank;
qr.text = text;
qr.level = level;
qr.version = version;
qr.moduleCount = quietModuleCount;
qr.isDark = isDark;
qr.addBlank = addBlank;
return qr;
}
// Check if canvas is available in the browser (as Modernizr does)
var hasCanvas = (function () {
var elem = document.createElement('canvas');
return Boolean(elem.getContext && elem.getContext('2d'));
}());
// Returns a minimal QR code for the given text starting with version `minVersion`.
// Returns `undefined` if `text` is too long to be encoded in `maxVersion`.
function createQRCode(text, level, minVersion, maxVersion, quiet) {
function createMinQRCode(text, level, minVersion, maxVersion, quiet) {
minVersion = Math.max(1, minVersion || 1);
maxVersion = Math.min(40, maxVersion || 40);
for (var version = minVersion; version <= maxVersion; version += 1) {
try {
return new QRCode(text, level, version, quiet);
return createQRCode(text, level, version, quiet);
} catch (err) {/* empty */}
}
return null;
return undefined;
}
function drawBackgroundLabel(qr, context, settings) {
var size = settings.size;
var font = 'bold ' + (settings.mSize * size) + 'px ' + settings.fontname;
var ctx = $('<canvas/>')[0].getContext('2d');
var font = 'bold ' + settings.mSize * size + 'px ' + settings.fontname;
var ctx = jq('<canvas/>')[0].getContext('2d');
ctx.font = font;
@@ -120,7 +123,7 @@
}
function drawBackground(qr, context, settings) {
if ($(settings.background).is('img')) {
if (jq(settings.background).is('img')) {
context.drawImage(settings.background, 0, 0, settings.size, settings.size);
} else if (settings.background) {
context.fillStyle = settings.background;
@@ -254,7 +257,7 @@
fn(qr, context, settings, l, t, w, row, col);
}
}
if ($(settings.fill).is('img')) {
if (jq(settings.fill).is('img')) {
context.strokeStyle = 'rgba(0,0,0,0.5)';
context.lineWidth = 2;
context.stroke();
@@ -274,12 +277,12 @@
// Draws QR code to the given `canvas` and returns it.
function drawOnCanvas(canvas, settings) {
var qr = createQRCode(settings.text, settings.ecLevel, settings.minVersion, settings.maxVersion, settings.quiet);
var qr = createMinQRCode(settings.text, settings.ecLevel, settings.minVersion, settings.maxVersion, settings.quiet);
if (!qr) {
return null;
}
var $canvas = $(canvas).data('qrcode', qr);
var $canvas = jq(canvas).data('qrcode', qr);
var context = $canvas[0].getContext('2d');
drawBackground(qr, context, settings);
@@ -290,18 +293,18 @@
// Returns a `canvas` element representing the QR code for the given settings.
function createCanvas(settings) {
var $canvas = $('<canvas/>').attr('width', settings.size).attr('height', settings.size);
var $canvas = jq('<canvas/>').attr('width', settings.size).attr('height', settings.size);
return drawOnCanvas($canvas, settings);
}
// Returns an `image` element representing the QR code for the given settings.
function createImage(settings) {
return $('<img/>').attr('src', createCanvas(settings)[0].toDataURL('image/png'));
return jq('<img/>').attr('src', createCanvas(settings)[0].toDataURL('image/png'));
}
// Returns a `div` element representing the QR code for the given settings.
function createDiv(settings) {
var qr = createQRCode(settings.text, settings.ecLevel, settings.minVersion, settings.maxVersion, settings.quiet);
var qr = createMinQRCode(settings.text, settings.ecLevel, settings.minVersion, settings.maxVersion, settings.quiet);
if (!qr) {
return null;
}
@@ -336,7 +339,7 @@
'background-color': settings.fill
};
var $div = $('<div/>').data('qrcode', qr).css(containerCSS);
var $div = jq('<div/>').data('qrcode', qr).css(containerCSS);
if (settings_bgColor) {
$div.css('background-color', settings_bgColor);
@@ -345,7 +348,7 @@
for (row = 0; row < moduleCount; row += 1) {
for (col = 0; col < moduleCount; col += 1) {
if (qr.isDark(row, col)) {
$('<div/>')
jq('<div/>')
.css(darkCSS)
.css({
left: offset + col * moduleSize,
@@ -428,14 +431,14 @@
// Register the plugin
// -------------------
$.fn.qrcode = function (options) {
var settings = $.extend({}, defaults, options);
jq.fn.qrcode = function (options) {
var settings = jq.extend({}, defaults, options);
return this.each(function () {
if (this.nodeName.toLowerCase() === 'canvas') { // eslint-disable-line no-invalid-this
drawOnCanvas(this, settings); // eslint-disable-line no-invalid-this
return this.each(function (idx, el) {
if (el.nodeName.toLowerCase() === 'canvas') {
drawOnCanvas(el, settings);
} else {
$(this).append(createHTML(settings)); // eslint-disable-line no-invalid-this
jq(el).append(createHTML(settings));
}
});
};
dist/jquery-qrcode.min.js
Vendored
+2 -2
View File
File diff suppressed because one or more lines are too long