Sketchy/Web/js/main.js

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JavaScript
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"use strict";
$(document).ready(function() {
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window.c = $('canvas')[0].getContext('2d');
window.o = $('canvas')[1].getContext('2d');
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window.c.clear = window.o.clear = function() {
this.clearRect(0, 0, width(), height());
}
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window.settings = {
stroke: true,
fill: false,
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lineWidth : 2,
color : 'black',
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type: 'sketch',
lineCap: 'round',
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lineJoin: 'round',
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furLength: 5,
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connectTelorance: 40,
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composite: 'source-over',
shape: 'circle',
shapeStart: {},
comShape: {},
drawingLine: [],
version: 1.2
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};
window.points = [];
window.$c = $('canvas');
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window.points.history = [{ data: c.createImageData($c.width(), $c.height()), points: []}];
window.points.history.last = 0;
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sizeAndPos();
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//$(window).resize(sizeAndPos);
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$('.color-picker').change(function() {
var c = $(this).find('.color').val();
var caller = $(this).parent().attr('data-caller');
settings[caller] = c;
$('#set' + caller + ' span').html(c);
if( caller == 'bg' ) {
$c.first().css('background', c);
}
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})
$('.color').val('#000000');
yepnope({
test: window.mobile,
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yep : ['js/libs/touch.js', 'js/mobile.js', 'js/libs/color-picker-touch.js'],
nope: ['js/desktop.js', 'js/libs/color-picker.js']
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})
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function save() {
switch(save.background) {
case 'white': {
c.fillStyle = 'white';
c.globalCompositeOperation = 'destination-over';
c.fillRect(0, 0, width(), height());
c.fillStyle = settings.color;
c.globalCompositeOperation = settings.composite;
break;
}
case 'current color': {
c.fillStyle = settings.bg;
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c.globalCompositeOperation = 'destination-over';
c.fillRect(0, 0, width(), height());
c.globalCompositeOperation = settings.composite;
break;
}
}
var data = $c[0].toDataURL();
if( save.type == 'sketchy project' ) {
var list = JSON.parse(localStorage.getItem('projects'));
if( list && list.some(function(a) { return a.name == save['file name'] }) ) {
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if( confirm('A sketch with this name already exists. Do you want to overwrite ' + save['file name']) + '?' ) {
list.push({
name: save['file name'],
data: data,
points: window.points
})
localStorage.setItem('projects', JSON.stringify(list));
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}
}
else
list ? list.push({
name: save['file name'],
data: data,
points: window.points
}) : list = [{
name: save['file name'],
data: data,
points: window.points
}];
localStorage.setItem('projects', JSON.stringify(list));
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} else {
window.open(data, '_blank').focus();
}
c.putImageData(window.points.history[window.points.history.last].data, 0, 0);
}
function load() {
var file = JSON.parse(localStorage.getItem('projects')).filter(function(a) { return a.name == load.file })[0];
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var img = document.createElement('img');
img.src = file.data;
img.onload = function() {
c.clearRect(0, 0, width(), height());
c.drawImage(img, 0, 0);
window.points = file.points;
window.points.history = [{ data: c.createImageData($c.width(), $c.height()), points: []}, { data: c.getImageData(0, 0, width(), height()), points: file.points}];
}
}
window.load = load;
window.save = save;
if( localStorage.getItem('sawTips') != settings.version ) {
$('.tour').removeClass('hidden');
localStorage.setItem('sawTips', settings.version);
}
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// TODO: Check for Update
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/*var request = navigator.mozApps.getInstalled();
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request.onsuccess = function() {
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var app = this.result[0];
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var latest = $.ajax({url:'manifest-web.webapp'});
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var selfApp = navigator.mozApps.getSelf();
selfApp.onsuccess = function() {
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if(this.result) {
latest.onload = function() {
if( this.response ) {
var lapp = JSON.parse(this.response);
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alert(lapp.version);
alert(app.manifest.version);
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if( lapp.version != app.manifest.version &&
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confirm('A new version of this app is available, do you want to update?')) {
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var ins = navigator.mozApps.install();
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ins.onsuccess = function() {
alert('The app was installed successfuly');
}
ins.onerror = function() {
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alert('There was an error installing app - ' + this.error.name)
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}
}
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}
}
}
}
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if( !app && confirm('Do you want to Install this app?') ) {
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var ins = navigator.mozApps.install('http://mdibaiee.github.io/Sketchy/Web/manifest-web.webapp');
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ins.onsuccess = function() {
alert('The app was installed successfuly');
}
ins.onerror = function() {
alert('There was an error installing app')
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console.log(this.error);
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}
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}
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}
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request.onerror = function() {
alert('An error occured while trying to check for updates');
}*/
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})