806 lines
26 KiB
JavaScript
806 lines
26 KiB
JavaScript
/**
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* @license MIT
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* @fileOverview Favico animations
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* @author Miroslav Magda, http://blog.ejci.net
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* @version 0.3.4
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*/
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/**
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* Create new favico instance
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* @param {Object} Options
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* @return {Object} Favico object
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* @example
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* var favico = new Favico({
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* bgColor : '#d00',
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* textColor : '#fff',
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* fontFamily : 'sans-serif',
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* fontStyle : 'bold',
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* position : 'down',
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* type : 'circle',
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* animation : 'slide',
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* });
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*/
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(function() {
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var Favico = (function(opt) {'use strict';
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opt = (opt) ? opt : {};
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var _def = {
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bgColor : '#d00',
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textColor : '#fff',
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fontFamily : 'sans-serif', //Arial,Verdana,Times New Roman,serif,sans-serif,...
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fontStyle : 'bold', //normal,italic,oblique,bold,bolder,lighter,100,200,300,400,500,600,700,800,900
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type : 'circle',
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position : 'down', // down, up, left, leftup (upleft)
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animation : 'slide',
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elementId : false
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};
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var _opt, _orig, _h, _w, _canvas, _context, _img, _ready, _lastBadge, _running, _readyCb, _stop, _browser;
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_browser = {};
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_browser.ff = (/firefox/i.test(navigator.userAgent.toLowerCase()));
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_browser.chrome = (/chrome/i.test(navigator.userAgent.toLowerCase()));
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_browser.opera = (/opera/i.test(navigator.userAgent.toLowerCase()));
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_browser.ie = (/msie/i.test(navigator.userAgent.toLowerCase())) || (/trident/i.test(navigator.userAgent.toLowerCase()));
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_browser.supported = (_browser.chrome || _browser.ff || _browser.opera);
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var _queue = [];
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_readyCb = function() {
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};
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_ready = _stop = false;
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/**
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* Initialize favico
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*/
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var init = function() {
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//merge initial options
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_opt = merge(_def, opt);
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_opt.bgColor = hexToRgb(_opt.bgColor);
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_opt.textColor = hexToRgb(_opt.textColor);
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_opt.position = _opt.position.toLowerCase();
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_opt.animation = (animation.types['' + _opt.animation]) ? _opt.animation : _def.animation;
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var isUp = _opt.position.indexOf('up') > -1;
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var isLeft = _opt.position.indexOf('left') > -1;
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//transform animation
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if (isUp || isLeft) {
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for (var i = 0; i < animation.types['' + _opt.animation].length; i++) {
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var step = animation.types['' + _opt.animation][i];
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if (isUp) {
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if (step.y < 0.6) {
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step.y = step.y - 0.4;
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} else {
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step.y = step.y - 2 * step.y + (1 - step.w);
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}
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}
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if (isLeft) {
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if (step.x < 0.6) {
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step.x = step.x - 0.4;
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} else {
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step.x = step.x - 2 * step.x + (1 - step.h);
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}
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}
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animation.types['' + _opt.animation][i] = step;
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}
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}
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_opt.type = (type['' + _opt.type]) ? _opt.type : _def.type;
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try {
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_orig = link.getIcon();
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//create temp canvas
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_canvas = document.createElement('canvas');
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//create temp image
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_img = document.createElement('img');
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if (_orig.hasAttribute('href')) {
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_img.setAttribute('src', _orig.getAttribute('href'));
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//get width/height
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_img.onload = function() {
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_h = (_img.height > 0) ? _img.height : 32;
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_w = (_img.width > 0) ? _img.width : 32;
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_canvas.height = _h;
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_canvas.width = _w;
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_context = _canvas.getContext('2d');
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icon.ready();
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};
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} else {
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_img.setAttribute('src', '');
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_h = 32;
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_w = 32;
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_img.height = _h;
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_img.width = _w;
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_canvas.height = _h;
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_canvas.width = _w;
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_context = _canvas.getContext('2d');
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icon.ready();
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}
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} catch(e) {
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throw 'Error initializing favico. Message: ' + e.message;
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}
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};
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/**
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* Icon namespace
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*/
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var icon = {};
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/**
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* Icon is ready (reset icon) and start animation (if ther is any)
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*/
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icon.ready = function() {
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_ready = true;
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icon.reset();
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_readyCb();
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};
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/**
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* Reset icon to default state
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*/
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icon.reset = function() {
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//reset
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_queue = [];
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_lastBadge = false;
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_context.clearRect(0, 0, _w, _h);
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_context.drawImage(_img, 0, 0, _w, _h);
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//_stop=true;
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link.setIcon(_canvas);
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//webcam('stop');
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//video('stop');
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};
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/**
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* Start animation
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*/
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icon.start = function() {
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if (!_ready || _running) {
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return;
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}
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var finished = function() {
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_lastBadge = _queue[0];
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_running = false;
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if (_queue.length > 0) {
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_queue.shift();
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icon.start();
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} else {
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}
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};
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if (_queue.length > 0) {
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_running = true;
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if (_lastBadge) {
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animation.run(_lastBadge.options, function() {
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animation.run(_queue[0].options, function() {
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finished();
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}, false);
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}, true);
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} else {
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animation.run(_queue[0].options, function() {
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finished();
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}, false);
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}
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}
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};
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/**
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* Badge types
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*/
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var type = {};
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var options = function(opt) {
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opt.n = Math.abs(opt.n);
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opt.x = _w * opt.x;
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opt.y = _h * opt.y;
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opt.w = _w * opt.w;
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opt.h = _h * opt.h;
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return opt;
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};
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/**
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* Generate circle
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* @param {Object} opt Badge options
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*/
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type.circle = function(opt) {
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opt = options(opt);
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var more = false;
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if (opt.n > 9 && opt.n < 100) {
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opt.x = opt.x - opt.w * 0.4;
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opt.w = opt.w * 1.4;
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more = true;
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} else if (opt.n >= 100) {
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opt.x = opt.x - opt.w * 0.65;
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opt.w = opt.w * 1.65;
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more = true;
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}
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_context.clearRect(0, 0, _w, _h);
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_context.drawImage(_img, 0, 0, _w, _h);
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_context.beginPath();
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_context.font = _opt.fontStyle + " " + Math.floor(opt.h * (opt.n > 99 ? 0.85 : 1)) + "px " + _opt.fontFamily;
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_context.textAlign = 'center';
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if (more) {
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_context.moveTo(opt.x + opt.w / 2, opt.y);
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_context.lineTo(opt.x + opt.w - opt.h / 2, opt.y);
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_context.quadraticCurveTo(opt.x + opt.w, opt.y, opt.x + opt.w, opt.y + opt.h / 2);
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_context.lineTo(opt.x + opt.w, opt.y + opt.h - opt.h / 2);
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_context.quadraticCurveTo(opt.x + opt.w, opt.y + opt.h, opt.x + opt.w - opt.h / 2, opt.y + opt.h);
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_context.lineTo(opt.x + opt.h / 2, opt.y + opt.h);
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_context.quadraticCurveTo(opt.x, opt.y + opt.h, opt.x, opt.y + opt.h - opt.h / 2);
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_context.lineTo(opt.x, opt.y + opt.h / 2);
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_context.quadraticCurveTo(opt.x, opt.y, opt.x + opt.h / 2, opt.y);
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} else {
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_context.arc(opt.x + opt.w / 2, opt.y + opt.h / 2, opt.h / 2, 0, 2 * Math.PI);
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}
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_context.fillStyle = 'rgba(' + _opt.bgColor.r + ',' + _opt.bgColor.g + ',' + _opt.bgColor.b + ',' + opt.o + ')';
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_context.fill();
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_context.closePath();
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_context.beginPath();
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_context.stroke();
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_context.fillStyle = 'rgba(' + _opt.textColor.r + ',' + _opt.textColor.g + ',' + _opt.textColor.b + ',' + opt.o + ')';
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//_context.fillText((more) ? '9+' : opt.n, Math.floor(opt.x + opt.w / 2), Math.floor(opt.y + opt.h - opt.h * 0.15));
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if (opt.n > 999) {
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_context.fillText(((opt.n > 9999) ? 9 : Math.floor(opt.n / 1000) ) + 'k+', Math.floor(opt.x + opt.w / 2), Math.floor(opt.y + opt.h - opt.h * 0.2));
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} else {
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_context.fillText(opt.n, Math.floor(opt.x + opt.w / 2), Math.floor(opt.y + opt.h - opt.h * 0.15));
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}
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_context.closePath();
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};
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/**
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* Generate rectangle
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* @param {Object} opt Badge options
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*/
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type.rectangle = function(opt) {
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opt = options(opt);
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var more = false;
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if (opt.n > 9 && opt.n < 100) {
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opt.x = opt.x - opt.w * 0.4;
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opt.w = opt.w * 1.4;
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more = true;
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} else if (opt.n >= 100) {
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opt.x = opt.x - opt.w * 0.65;
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opt.w = opt.w * 1.65;
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more = true;
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}
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_context.clearRect(0, 0, _w, _h);
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_context.drawImage(_img, 0, 0, _w, _h);
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_context.beginPath();
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_context.font = "bold " + Math.floor(opt.h * (opt.n > 99 ? 0.9 : 1)) + "px sans-serif";
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_context.textAlign = 'center';
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_context.fillStyle = 'rgba(' + _opt.bgColor.r + ',' + _opt.bgColor.g + ',' + _opt.bgColor.b + ',' + opt.o + ')';
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_context.fillRect(opt.x, opt.y, opt.w, opt.h);
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_context.fillStyle = 'rgba(' + _opt.textColor.r + ',' + _opt.textColor.g + ',' + _opt.textColor.b + ',' + opt.o + ')';
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//_context.fillText((more) ? '9+' : opt.n, Math.floor(opt.x + opt.w / 2), Math.floor(opt.y + opt.h - opt.h * 0.15));
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if (opt.n > 999) {
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_context.fillText(((opt.n > 9999) ? 9 : Math.floor(opt.n / 1000) ) + 'k+', Math.floor(opt.x + opt.w / 2), Math.floor(opt.y + opt.h - opt.h * 0.2));
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} else {
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_context.fillText(opt.n, Math.floor(opt.x + opt.w / 2), Math.floor(opt.y + opt.h - opt.h * 0.15));
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}
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_context.closePath();
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};
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/**
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* Set badge
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*/
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var badge = function(number, animType) {
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_readyCb = function() {
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try {
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if (number > 0) {
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if (animation.types['' + animType]) {
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_opt.animation = animType;
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}
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_queue.push({
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type : 'badge',
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options : {
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n : number
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}
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});
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if (_queue.length > 100) {
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throw 'Too many badges requests in queue.';
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}
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icon.start();
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} else {
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icon.reset();
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}
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} catch(e) {
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throw 'Error setting badge. Message: ' + e.message;
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}
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};
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if (_ready) {
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_readyCb();
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}
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};
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/**
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* Set image as icon
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*/
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var image = function(imageElement) {
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_readyCb = function() {
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try {
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var w = imageElement.width;
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var h = imageElement.height;
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var newImg = document.createElement('img');
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var ratio = (w / _w < h / _h) ? (w / _w) : (h / _h);
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newImg.setAttribute('src', imageElement.getAttribute('src'));
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newImg.height = (h / ratio);
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newImg.width = (w / ratio);
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_context.clearRect(0, 0, _w, _h);
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_context.drawImage(newImg, 0, 0, _w, _h);
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link.setIcon(_canvas);
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} catch(e) {
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throw 'Error setting image. Message: ' + e.message;
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}
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};
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if (_ready) {
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_readyCb();
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}
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};
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/**
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* Set video as icon
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*/
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var video = function(videoElement) {
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_readyCb = function() {
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try {
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if (videoElement === 'stop') {
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_stop = true;
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icon.reset();
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_stop = false;
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return;
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}
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//var w = videoElement.width;
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//var h = videoElement.height;
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//var ratio = (w / _w < h / _h) ? (w / _w) : (h / _h);
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videoElement.addEventListener('play', function() {
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drawVideo(this);
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}, false);
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} catch(e) {
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throw 'Error setting video. Message: ' + e.message;
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}
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};
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if (_ready) {
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_readyCb();
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}
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};
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/**
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* Set video as icon
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*/
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var webcam = function(action) {
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//UR
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if (!window.URL || !window.URL.createObjectURL) {
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window.URL = window.URL || {};
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window.URL.createObjectURL = function(obj) {
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return obj;
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};
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}
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if (_browser.supported) {
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var newVideo = false;
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navigator.getUserMedia = navigator.getUserMedia || navigator.oGetUserMedia || navigator.msGetUserMedia || navigator.mozGetUserMedia || navigator.webkitGetUserMedia;
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_readyCb = function() {
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try {
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if (action === 'stop') {
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_stop = true;
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icon.reset();
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_stop = false;
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return;
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}
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newVideo = document.createElement('video');
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newVideo.width = _w;
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newVideo.height = _h;
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navigator.getUserMedia({
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video : true,
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audio : false
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}, function(stream) {
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newVideo.src = URL.createObjectURL(stream);
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newVideo.play();
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drawVideo(newVideo);
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}, function() {
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});
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} catch(e) {
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throw 'Error setting webcam. Message: ' + e.message;
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}
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};
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if (_ready) {
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_readyCb();
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}
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}
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};
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/**
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* Draw video to context and repeat :)
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*/
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function drawVideo(video) {
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if (video.paused || video.ended || _stop) {
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return false;
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}
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//nasty hack for FF webcam (Thanks to Julian Ćwirko, kontakt@redsunmedia.pl)
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try {
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_context.clearRect(0, 0, _w, _h);
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_context.drawImage(video, 0, 0, _w, _h);
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} catch(e) {
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}
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setTimeout(drawVideo, animation.duration, video);
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link.setIcon(_canvas);
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}
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var link = {};
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/**
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* Get icon from HEAD tag or create a new <link> element
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*/
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link.getIcon = function() {
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var elm = false;
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var url = '';
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//get link element
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var getLink = function() {
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var link = document.getElementsByTagName('head')[0].getElementsByTagName('link');
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for (var l = link.length, i = (l - 1); i >= 0; i--) {
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if ((/icon/i).test(link[i].getAttribute('rel'))) {
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return link[i];
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}
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}
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return false;
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};
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if (_opt.elementId) {
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//if img element identified by elementId
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elm = document.getElementById(_opt.elementId);
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elm.setAttribute('href', elm.getAttribute('src'));
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} else {
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//if link element
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elm = getLink();
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if (elm === false) {
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elm = document.createElement('link');
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elm.setAttribute('rel', 'icon');
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document.getElementsByTagName('head')[0].appendChild(elm);
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}
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}
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//check if image and link url is on same domain. if not raise error
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url = (_opt.elementId) ? elm.src : elm.href;
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if (url.indexOf(document.location.hostname) === -1) {
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throw new Error('Error setting favicon. Favicon image is on different domain (Icon: ' + url + ', Domain: ' + document.location.hostname + ')');
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}
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elm.setAttribute('type', 'image/png');
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return elm;
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};
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link.setIcon = function(canvas) {
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var url = canvas.toDataURL('image/png');
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if (_opt.elementId) {
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//if is attached to element (image)
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document.getElementById(_opt.elementId).setAttribute('src', url);
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} else {
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//if is attached to fav icon
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if (_browser.ff || _browser.opera) {
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//for FF we need to "recreate" element, atach to dom and remove old <link>
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//var originalType = _orig.getAttribute('rel');
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var old = _orig;
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_orig = document.createElement('link');
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//_orig.setAttribute('rel', originalType);
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if (_browser.opera) {
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_orig.setAttribute('rel', 'icon');
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}
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_orig.setAttribute('rel', 'icon');
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_orig.setAttribute('type', 'image/png');
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document.getElementsByTagName('head')[0].appendChild(_orig);
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_orig.setAttribute('href', url);
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if (old.parentNode) {
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old.parentNode.removeChild(old);
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}
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} else {
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_orig.setAttribute('href', url);
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}
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}
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};
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//http://stackoverflow.com/questions/5623838/rgb-to-hex-and-hex-to-rgb#answer-5624139
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//HEX to RGB convertor
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function hexToRgb(hex) {
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var shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
|
|
hex = hex.replace(shorthandRegex, function(m, r, g, b) {
|
|
return r + r + g + g + b + b;
|
|
});
|
|
var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
|
|
return result ? {
|
|
r : parseInt(result[1], 16),
|
|
g : parseInt(result[2], 16),
|
|
b : parseInt(result[3], 16)
|
|
} : false;
|
|
}
|
|
|
|
/**
|
|
* Merge options
|
|
*/
|
|
function merge(def, opt) {
|
|
var mergedOpt = {};
|
|
var attrname;
|
|
for (attrname in def) {
|
|
mergedOpt[attrname] = def[attrname];
|
|
}
|
|
for (attrname in opt) {
|
|
mergedOpt[attrname] = opt[attrname];
|
|
}
|
|
return mergedOpt;
|
|
}
|
|
|
|
/**
|
|
* Cross-browser page visibility shim
|
|
* http://stackoverflow.com/questions/12536562/detect-whether-a-window-is-visible
|
|
*/
|
|
function isPageHidden() {
|
|
return document.hidden || document.msHidden || document.webkitHidden || document.mozHidden;
|
|
}
|
|
|
|
/**
|
|
* @namespace animation
|
|
*/
|
|
var animation = {};
|
|
/**
|
|
* Animation "frame" duration
|
|
*/
|
|
animation.duration = 40;
|
|
/**
|
|
* Animation types (none,fade,pop,slide)
|
|
*/
|
|
animation.types = {};
|
|
animation.types.fade = [{
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 0.0
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 0.1
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 0.2
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 0.3
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 0.4
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 0.5
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 0.6
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 0.7
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 0.8
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 0.9
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1.0
|
|
}];
|
|
animation.types.none = [{
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1
|
|
}];
|
|
animation.types.pop = [{
|
|
x : 1,
|
|
y : 1,
|
|
w : 0,
|
|
h : 0,
|
|
o : 1
|
|
}, {
|
|
x : 0.9,
|
|
y : 0.9,
|
|
w : 0.1,
|
|
h : 0.1,
|
|
o : 1
|
|
}, {
|
|
x : 0.8,
|
|
y : 0.8,
|
|
w : 0.2,
|
|
h : 0.2,
|
|
o : 1
|
|
}, {
|
|
x : 0.7,
|
|
y : 0.7,
|
|
w : 0.3,
|
|
h : 0.3,
|
|
o : 1
|
|
}, {
|
|
x : 0.6,
|
|
y : 0.6,
|
|
w : 0.4,
|
|
h : 0.4,
|
|
o : 1
|
|
}, {
|
|
x : 0.5,
|
|
y : 0.5,
|
|
w : 0.5,
|
|
h : 0.5,
|
|
o : 1
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1
|
|
}];
|
|
animation.types.popFade = [{
|
|
x : 0.75,
|
|
y : 0.75,
|
|
w : 0,
|
|
h : 0,
|
|
o : 0
|
|
}, {
|
|
x : 0.65,
|
|
y : 0.65,
|
|
w : 0.1,
|
|
h : 0.1,
|
|
o : 0.2
|
|
}, {
|
|
x : 0.6,
|
|
y : 0.6,
|
|
w : 0.2,
|
|
h : 0.2,
|
|
o : 0.4
|
|
}, {
|
|
x : 0.55,
|
|
y : 0.55,
|
|
w : 0.3,
|
|
h : 0.3,
|
|
o : 0.6
|
|
}, {
|
|
x : 0.50,
|
|
y : 0.50,
|
|
w : 0.4,
|
|
h : 0.4,
|
|
o : 0.8
|
|
}, {
|
|
x : 0.45,
|
|
y : 0.45,
|
|
w : 0.5,
|
|
h : 0.5,
|
|
o : 0.9
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1
|
|
}];
|
|
animation.types.slide = [{
|
|
x : 0.4,
|
|
y : 1,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.9,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.9,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.8,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.7,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.6,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.5,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1
|
|
}, {
|
|
x : 0.4,
|
|
y : 0.4,
|
|
w : 0.6,
|
|
h : 0.6,
|
|
o : 1
|
|
}];
|
|
/**
|
|
* Run animation
|
|
* @param {Object} opt Animation options
|
|
* @param {Object} cb Callabak after all steps are done
|
|
* @param {Object} revert Reverse order? true|false
|
|
* @param {Object} step Optional step number (frame bumber)
|
|
*/
|
|
animation.run = function(opt, cb, revert, step) {
|
|
var animationType = animation.types[isPageHidden() ? 'none' : _opt.animation];
|
|
if (revert === true) {
|
|
step = ( typeof step !== 'undefined') ? step : animationType.length - 1;
|
|
} else {
|
|
step = ( typeof step !== 'undefined') ? step : 0;
|
|
}
|
|
cb = (cb) ? cb : function() {
|
|
};
|
|
if ((step < animationType.length) && (step >= 0)) {
|
|
type[_opt.type](merge(opt, animationType[step]));
|
|
setTimeout(function() {
|
|
if (revert) {
|
|
step = step - 1;
|
|
} else {
|
|
step = step + 1;
|
|
}
|
|
animation.run(opt, cb, revert, step);
|
|
}, animation.duration);
|
|
|
|
link.setIcon(_canvas);
|
|
} else {
|
|
cb();
|
|
return;
|
|
}
|
|
};
|
|
//auto init
|
|
init();
|
|
return {
|
|
badge : badge,
|
|
video : video,
|
|
image : image,
|
|
webcam : webcam,
|
|
reset : icon.reset
|
|
};
|
|
});
|
|
|
|
// AMD / RequireJS
|
|
if ( typeof define !== 'undefined' && define.amd) {
|
|
define([], function() {
|
|
return Favico;
|
|
});
|
|
}
|
|
// CommonJS
|
|
else if ( typeof module !== 'undefined' && module.exports) {
|
|
module.exports = Favico;
|
|
}
|
|
// included directly via <script> tag
|
|
else {
|
|
this.Favico = Favico;
|
|
}
|
|
|
|
})();
|