Sindbad~EG File Manager
(function(){
var Util = _html2canvas.Util,
Generate = {};
_html2canvas.Generate = Generate;
var reGradients = [
/^(-webkit-linear-gradient)\(([a-z\s]+)([\w\d\.\s,%\(\)]+)\)$/,
/^(-o-linear-gradient)\(([a-z\s]+)([\w\d\.\s,%\(\)]+)\)$/,
/^(-webkit-gradient)\((linear|radial),\s((?:\d{1,3}%?)\s(?:\d{1,3}%?),\s(?:\d{1,3}%?)\s(?:\d{1,3}%?))([\w\d\.\s,%\(\)\-]+)\)$/,
/^(-moz-linear-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?))([\w\d\.\s,%\(\)]+)\)$/,
/^(-webkit-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s([a-z\-]+)([\w\d\.\s,%\(\)]+)\)$/,
/^(-moz-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s?([a-z\-]*)([\w\d\.\s,%\(\)]+)\)$/,
/^(-o-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s([a-z\-]+)([\w\d\.\s,%\(\)]+)\)$/
];
/*
* TODO: Add IE10 vendor prefix (-ms) support
* TODO: Add W3C gradient (linear-gradient) support
* TODO: Add old Webkit -webkit-gradient(radial, ...) support
* TODO: Maybe some RegExp optimizations are possible ;o)
*/
Generate.parseGradient = function(css, bounds) {
var gradient, i, len = reGradients.length, m1, stop, m2, m2Len, step, m3, tl,tr,br,bl;
for(i = 0; i < len; i+=1){
m1 = css.match(reGradients[i]);
if(m1) {
break;
}
}
if(m1) {
switch(m1[1]) {
case '-webkit-linear-gradient':
case '-o-linear-gradient':
gradient = {
type: 'linear',
x0: null,
y0: null,
x1: null,
y1: null,
colorStops: []
};
// get coordinates
m2 = m1[2].match(/\w+/g);
if(m2){
m2Len = m2.length;
for(i = 0; i < m2Len; i+=1){
switch(m2[i]) {
case 'top':
gradient.y0 = 0;
gradient.y1 = bounds.height;
break;
case 'right':
gradient.x0 = bounds.width;
gradient.x1 = 0;
break;
case 'bottom':
gradient.y0 = bounds.height;
gradient.y1 = 0;
break;
case 'left':
gradient.x0 = 0;
gradient.x1 = bounds.width;
break;
}
}
}
if(gradient.x0 === null && gradient.x1 === null){ // center
gradient.x0 = gradient.x1 = bounds.width / 2;
}
if(gradient.y0 === null && gradient.y1 === null){ // center
gradient.y0 = gradient.y1 = bounds.height / 2;
}
// get colors and stops
m2 = m1[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g);
if(m2){
m2Len = m2.length;
step = 1 / Math.max(m2Len - 1, 1);
for(i = 0; i < m2Len; i+=1){
m3 = m2[i].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/);
if(m3[2]){
stop = parseFloat(m3[2]);
if(m3[3] === '%'){
stop /= 100;
} else { // px - stupid opera
stop /= bounds.width;
}
} else {
stop = i * step;
}
gradient.colorStops.push({
color: m3[1],
stop: stop
});
}
}
break;
case '-webkit-gradient':
gradient = {
type: m1[2] === 'radial' ? 'circle' : m1[2], // TODO: Add radial gradient support for older mozilla definitions
x0: 0,
y0: 0,
x1: 0,
y1: 0,
colorStops: []
};
// get coordinates
m2 = m1[3].match(/(\d{1,3})%?\s(\d{1,3})%?,\s(\d{1,3})%?\s(\d{1,3})%?/);
if(m2){
gradient.x0 = (m2[1] * bounds.width) / 100;
gradient.y0 = (m2[2] * bounds.height) / 100;
gradient.x1 = (m2[3] * bounds.width) / 100;
gradient.y1 = (m2[4] * bounds.height) / 100;
}
// get colors and stops
m2 = m1[4].match(/((?:from|to|color-stop)\((?:[0-9\.]+,\s)?(?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)\))+/g);
if(m2){
m2Len = m2.length;
for(i = 0; i < m2Len; i+=1){
m3 = m2[i].match(/(from|to|color-stop)\(([0-9\.]+)?(?:,\s)?((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\)/);
stop = parseFloat(m3[2]);
if(m3[1] === 'from') {
stop = 0.0;
}
if(m3[1] === 'to') {
stop = 1.0;
}
gradient.colorStops.push({
color: m3[3],
stop: stop
});
}
}
break;
case '-moz-linear-gradient':
gradient = {
type: 'linear',
x0: 0,
y0: 0,
x1: 0,
y1: 0,
colorStops: []
};
// get coordinates
m2 = m1[2].match(/(\d{1,3})%?\s(\d{1,3})%?/);
// m2[1] == 0% -> left
// m2[1] == 50% -> center
// m2[1] == 100% -> right
// m2[2] == 0% -> top
// m2[2] == 50% -> center
// m2[2] == 100% -> bottom
if(m2){
gradient.x0 = (m2[1] * bounds.width) / 100;
gradient.y0 = (m2[2] * bounds.height) / 100;
gradient.x1 = bounds.width - gradient.x0;
gradient.y1 = bounds.height - gradient.y0;
}
// get colors and stops
m2 = m1[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}%)?)+/g);
if(m2){
m2Len = m2.length;
step = 1 / Math.max(m2Len - 1, 1);
for(i = 0; i < m2Len; i+=1){
m3 = m2[i].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%)?/);
if(m3[2]){
stop = parseFloat(m3[2]);
if(m3[3]){ // percentage
stop /= 100;
}
} else {
stop = i * step;
}
gradient.colorStops.push({
color: m3[1],
stop: stop
});
}
}
break;
case '-webkit-radial-gradient':
case '-moz-radial-gradient':
case '-o-radial-gradient':
gradient = {
type: 'circle',
x0: 0,
y0: 0,
x1: bounds.width,
y1: bounds.height,
cx: 0,
cy: 0,
rx: 0,
ry: 0,
colorStops: []
};
// center
m2 = m1[2].match(/(\d{1,3})%?\s(\d{1,3})%?/);
if(m2){
gradient.cx = (m2[1] * bounds.width) / 100;
gradient.cy = (m2[2] * bounds.height) / 100;
}
// size
m2 = m1[3].match(/\w+/);
m3 = m1[4].match(/[a-z\-]*/);
if(m2 && m3){
switch(m3[0]){
case 'farthest-corner':
case 'cover': // is equivalent to farthest-corner
case '': // mozilla removes "cover" from definition :(
tl = Math.sqrt(Math.pow(gradient.cx, 2) + Math.pow(gradient.cy, 2));
tr = Math.sqrt(Math.pow(gradient.cx, 2) + Math.pow(gradient.y1 - gradient.cy, 2));
br = Math.sqrt(Math.pow(gradient.x1 - gradient.cx, 2) + Math.pow(gradient.y1 - gradient.cy, 2));
bl = Math.sqrt(Math.pow(gradient.x1 - gradient.cx, 2) + Math.pow(gradient.cy, 2));
gradient.rx = gradient.ry = Math.max(tl, tr, br, bl);
break;
case 'closest-corner':
tl = Math.sqrt(Math.pow(gradient.cx, 2) + Math.pow(gradient.cy, 2));
tr = Math.sqrt(Math.pow(gradient.cx, 2) + Math.pow(gradient.y1 - gradient.cy, 2));
br = Math.sqrt(Math.pow(gradient.x1 - gradient.cx, 2) + Math.pow(gradient.y1 - gradient.cy, 2));
bl = Math.sqrt(Math.pow(gradient.x1 - gradient.cx, 2) + Math.pow(gradient.cy, 2));
gradient.rx = gradient.ry = Math.min(tl, tr, br, bl);
break;
case 'farthest-side':
if(m2[0] === 'circle'){
gradient.rx = gradient.ry = Math.max(
gradient.cx,
gradient.cy,
gradient.x1 - gradient.cx,
gradient.y1 - gradient.cy
);
} else { // ellipse
gradient.type = m2[0];
gradient.rx = Math.max(
gradient.cx,
gradient.x1 - gradient.cx
);
gradient.ry = Math.max(
gradient.cy,
gradient.y1 - gradient.cy
);
}
break;
case 'closest-side':
case 'contain': // is equivalent to closest-side
if(m2[0] === 'circle'){
gradient.rx = gradient.ry = Math.min(
gradient.cx,
gradient.cy,
gradient.x1 - gradient.cx,
gradient.y1 - gradient.cy
);
} else { // ellipse
gradient.type = m2[0];
gradient.rx = Math.min(
gradient.cx,
gradient.x1 - gradient.cx
);
gradient.ry = Math.min(
gradient.cy,
gradient.y1 - gradient.cy
);
}
break;
// TODO: add support for "30px 40px" sizes (webkit only)
}
}
// color stops
m2 = m1[5].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g);
if(m2){
m2Len = m2.length;
step = 1 / Math.max(m2Len - 1, 1);
for(i = 0; i < m2Len; i+=1){
m3 = m2[i].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/);
if(m3[2]){
stop = parseFloat(m3[2]);
if(m3[3] === '%'){
stop /= 100;
} else { // px - stupid opera
stop /= bounds.width;
}
} else {
stop = i * step;
}
gradient.colorStops.push({
color: m3[1],
stop: stop
});
}
}
break;
}
}
return gradient;
};
function addScrollStops(grad) {
return function(colorStop) {
try {
grad.addColorStop(colorStop.stop, colorStop.color);
}
catch(e) {
Util.log(['failed to add color stop: ', e, '; tried to add: ', colorStop]);
}
};
}
Generate.Gradient = function(src, bounds) {
if(bounds.width === 0 || bounds.height === 0) {
return;
}
var canvas = document.createElement('canvas'),
ctx = canvas.getContext('2d'),
gradient, grad;
canvas.width = bounds.width;
canvas.height = bounds.height;
// TODO: add support for multi defined background gradients
gradient = _html2canvas.Generate.parseGradient(src, bounds);
if(gradient) {
switch(gradient.type) {
case 'linear':
grad = ctx.createLinearGradient(gradient.x0, gradient.y0, gradient.x1, gradient.y1);
gradient.colorStops.forEach(addScrollStops(grad));
ctx.fillStyle = grad;
ctx.fillRect(0, 0, bounds.width, bounds.height);
break;
case 'circle':
grad = ctx.createRadialGradient(gradient.cx, gradient.cy, 0, gradient.cx, gradient.cy, gradient.rx);
gradient.colorStops.forEach(addScrollStops(grad));
ctx.fillStyle = grad;
ctx.fillRect(0, 0, bounds.width, bounds.height);
break;
case 'ellipse':
var canvasRadial = document.createElement('canvas'),
ctxRadial = canvasRadial.getContext('2d'),
ri = Math.max(gradient.rx, gradient.ry),
di = ri * 2;
canvasRadial.width = canvasRadial.height = di;
grad = ctxRadial.createRadialGradient(gradient.rx, gradient.ry, 0, gradient.rx, gradient.ry, ri);
gradient.colorStops.forEach(addScrollStops(grad));
ctxRadial.fillStyle = grad;
ctxRadial.fillRect(0, 0, di, di);
ctx.fillStyle = gradient.colorStops[gradient.colorStops.length - 1].color;
ctx.fillRect(0, 0, canvas.width, canvas.height);
ctx.drawImage(canvasRadial, gradient.cx - gradient.rx, gradient.cy - gradient.ry, 2 * gradient.rx, 2 * gradient.ry);
break;
}
}
return canvas;
};
Generate.ListAlpha = function(number) {
var tmp = "",
modulus;
do {
modulus = number % 26;
tmp = String.fromCharCode((modulus) + 64) + tmp;
number = number / 26;
}while((number*26) > 26);
return tmp;
};
Generate.ListRoman = function(number) {
var romanArray = ["M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"],
decimal = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1],
roman = "",
v,
len = romanArray.length;
if (number <= 0 || number >= 4000) {
return number;
}
for (v=0; v < len; v+=1) {
while (number >= decimal[v]) {
number -= decimal[v];
roman += romanArray[v];
}
}
return roman;
};
})();
Sindbad File Manager Version 1.0, Coded By Sindbad EG ~ The Terrorists