Added some support for CSS gradients (by cthackers)

This commit is contained in:
Niklas von Hertzen 2011-09-12 23:50:43 +03:00
parent f0112ff3ab
commit 6fe3218b50
7 changed files with 489 additions and 199 deletions

View File

@ -18,6 +18,7 @@
<fileset dir="${src.dir}" includes="LICENSE"/> <fileset dir="${src.dir}" includes="LICENSE"/>
<fileset dir="." includes="LICENSE"/> <fileset dir="." includes="LICENSE"/>
<fileset dir="${src.dir}" includes="Core.js"/> <fileset dir="${src.dir}" includes="Core.js"/>
<fileset dir="${src.dir}" includes="Generate.js"/>
<fileset dir="${src.dir}" includes="Parse.js"/> <fileset dir="${src.dir}" includes="Parse.js"/>
<fileset dir="${src.dir}" includes="Preload.js"/> <fileset dir="${src.dir}" includes="Preload.js"/>
<fileset dir="${src.dir}" includes="Queue.js"/> <fileset dir="${src.dir}" includes="Queue.js"/>

View File

@ -42,7 +42,11 @@ html2canvas.Util = {};
html2canvas.Util.backgroundImage = function (src) { html2canvas.Util.backgroundImage = function (src) {
if ( src.substr(0, 5) === 'url("' ) { if (/data:image\/.*;base64,/i.test( src ) || /^(-webkit|-moz|linear-gradient|-o-)/.test( src )) {
return src;
}
if (src.toLowerCase().substr( 0, 5 ) === 'url("') {
src = src.substr( 5 ); src = src.substr( 5 );
src = src.substr( 0, src.length - 2 ); src = src.substr( 0, src.length - 2 );
} else { } else {
@ -53,6 +57,41 @@ html2canvas.Util.backgroundImage = function (src) {
return src; return src;
}; };
html2canvas.Util.Bounds = function getBounds (el) {
window.scroll(0,0);
var clientRect,
bounds = {};
if (el.getBoundingClientRect){
clientRect = el.getBoundingClientRect();
// TODO add scroll position to bounds, so no scrolling of window necessary
bounds.top = clientRect.top;
bounds.bottom = clientRect.bottom || (clientRect.top + clientRect.height);
bounds.left = clientRect.left;
bounds.width = clientRect.width;
bounds.height = clientRect.height;
return bounds;
} /*else{
p = $(el).offset();
return {
left: p.left + getCSS(el,"borderLeftWidth", true),
top: p.top + getCSS(el,"borderTopWidth", true),
width:$(el).innerWidth(),
height:$(el).innerHeight()
};
} */
}
html2canvas.Util.getCSS = function (el, attribute) { html2canvas.Util.getCSS = function (el, attribute) {
// return jQuery(el).css(attribute); // return jQuery(el).css(attribute);
/* /*
@ -113,6 +152,115 @@ html2canvas.Util.Children = function(el) {
// $(el).contents() !== el.childNodes, Opera / IE have issues with that // $(el).contents() !== el.childNodes, Opera / IE have issues with that
return $(el).contents(); return $(el).contents();
} }
html2canvas.Generate = {};
html2canvas.Generate.Gradient = function(src, bounds) {
var canvas = document.createElement('canvas'),
ctx = canvas.getContext('2d'),
tmp,
p0 = 0,
p1 = 0,
p2 = 0,
p3 = 0,
steps = [],
position,
i,
len,
lingrad,
increment,
p,
img;
canvas.width = bounds.width;
canvas.height = bounds.height;
function getColors(input) {
var j = -1,
color = '',
chr;
while( j++ < input.length ) {
chr = input.charAt( j );
if (chr === ')') {
color += chr;
steps.push( color );
color = '';
j+=2;
} else {
color += chr;
}
}
}
if ( tmp = src.match(/-webkit-linear-gradient\((.*)\)/) ) {
position = tmp[1].split( ",", 1 )[0];
getColors( tmp[1].substr( position.length + 2 ) );
position = position.split(' ');
for (p = 0; p < position.length; p+=1) {
switch(position[p]) {
case 'top':
p3 = bounds.height;
break;
case 'right':
p0 = bounds.width;
break;
case 'bottom':
p1 = bounds.height;
break;
case 'left':
p2 = bounds.width;
break;
}
}
} else if (tmp = src.match(/-webkit-gradient\(linear, (\d+)% (\d+)\%, (\d+)% (\d+)%, from\((.*)\), to\((.*)\)\)/)) {
p0 = (tmp[1] * bounds.width) / 100;
p1 = (tmp[2] * bounds.height) / 100;
p2 = (tmp[3] * bounds.width) / 100;
p3 = (tmp[4] * bounds.height) / 100;
steps.push(tmp[5]);
steps.push(tmp[6]);
} else if (tmp = src.match(/-moz-linear-gradient\((\d+)% (\d+)%, (.*)\)/)) {
p0 = (tmp[1] * bounds.width) / 100;
p1 = (tmp[2] * bounds.width) / 100;
p2 = bounds.width - p0;
p3 = bounds.height - p1;
getColors( tmp[3] );
} else {
return;
}
lingrad = ctx.createLinearGradient( p0, p1, p2, p3 );
increment = 1 / (steps.length - 1);
for (i = 0, len = steps.length; i < len; i+=1) {
lingrad.addColorStop(increment * i, steps[i]);
}
ctx.fillStyle = lingrad;
// draw shapes
ctx.fillRect(0, 0, bounds.width,bounds.height);
img = new Image();
img.src = canvas.toDataURL();
return img;
}
/* /*
* New function for traversing elements * New function for traversing elements
*/ */
@ -231,41 +379,6 @@ html2canvas.Parse = function (element, images, opts) {
} }
function getBounds (el) {
window.scroll(0,0);
var clientRect,
bounds = {};
if (el.getBoundingClientRect){
clientRect = el.getBoundingClientRect();
// TODO add scroll position to bounds, so no scrolling of window necessary
bounds.top = clientRect.top;
bounds.bottom = clientRect.bottom || (clientRect.top + clientRect.height);
bounds.left = clientRect.left;
bounds.width = clientRect.width;
bounds.height = clientRect.height;
return bounds;
} /*else{
p = $(el).offset();
return {
left: p.left + getCSS(el,"borderLeftWidth", true),
top: p.top + getCSS(el,"borderTopWidth", true),
width:$(el).innerWidth(),
height:$(el).innerHeight()
};
} */
}
function textTransform (text, transform) { function textTransform (text, transform) {
switch(transform){ switch(transform){
case "lowercase": case "lowercase":
@ -494,7 +607,7 @@ html2canvas.Parse = function (element, images, opts) {
wrapElement.appendChild(oldTextNode.cloneNode(true)); wrapElement.appendChild(oldTextNode.cloneNode(true));
parent.replaceChild(wrapElement, oldTextNode); parent.replaceChild(wrapElement, oldTextNode);
bounds = getBounds(wrapElement); bounds = html2canvas.Util.Bounds(wrapElement);
textValue = oldTextNode.nodeValue; textValue = oldTextNode.nodeValue;
@ -604,19 +717,6 @@ html2canvas.Parse = function (element, images, opts) {
} }
function backgroundUrl (src){
if (src.substr(0,5) === 'url("'){
src = src.substr(5);
src = src.substr(0,src.length-2);
}else{
src = src.substr(4);
src = src.substr(0,src.length-1);
}
return src;
}
function renderBorders(el, ctx, bounds, clip){ function renderBorders(el, ctx, bounds, clip){
/* /*
@ -896,7 +996,7 @@ html2canvas.Parse = function (element, images, opts) {
function renderBackground(el,bounds,ctx){ function renderBackground(el,bounds,ctx){
// TODO add support for multi background-images // TODO add support for multi background-images
var background_image = getCSS(el, "backgroundImage", false).split(",")[0], var background_image = getCSS(el, "backgroundImage", false),
background_repeat = getCSS(el, "backgroundRepeat", false).split(",")[0], background_repeat = getCSS(el, "backgroundRepeat", false).split(",")[0],
image, image,
bgp, bgp,
@ -911,24 +1011,29 @@ html2canvas.Parse = function (element, images, opts) {
height, height,
add; add;
if (typeof background_image !== "undefined" && /^(1|none)$/.test(background_image) === false && /^(-webkit|-moz|linear-gradient|-o-)/.test(background_image)===false){ // if (typeof background_image !== "undefined" && /^(1|none)$/.test(background_image) === false && /^(-webkit|-moz|linear-gradient|-o-)/.test(background_image)===false){
background_image = backgroundUrl(background_image); if ( !/data:image\/.*;base64,/i.test(background_image) && !/^(-webkit|-moz|linear-gradient|-o-)/.test(background_image) ) {
image = loadImage(background_image); background_image = background_image.split(",")[0];
}
if ( typeof background_image !== "undefined" && /^(1|none)$/.test( background_image ) === false ) {
background_image = html2canvas.Util.backgroundImage( background_image );
image = loadImage( background_image );
bgp = getBackgroundPosition(el, bounds, image); bgp = getBackgroundPosition(el, bounds, image);
if (image){ if ( image ){
switch(background_repeat){ switch ( background_repeat ) {
case "repeat-x": case "repeat-x":
renderBackgroundRepeatX(ctx, image, bgp, bounds.left, bounds.top, bounds.width, bounds.height); renderBackgroundRepeatX( ctx, image, bgp, bounds.left, bounds.top, bounds.width, bounds.height );
break; break;
case "repeat-y": case "repeat-y":
renderBackgroundRepeatY(ctx, image, bgp, bounds.left, bounds.top, bounds.width, bounds.height); renderBackgroundRepeatY( ctx, image, bgp, bounds.left, bounds.top, bounds.width, bounds.height );
break; break;
case "no-repeat": case "no-repeat":
@ -1049,7 +1154,7 @@ html2canvas.Parse = function (element, images, opts) {
function renderElement(el, parentStack){ function renderElement(el, parentStack){
var bounds = getBounds(el), var bounds = html2canvas.Util.Bounds(el),
x = bounds.left, x = bounds.left,
y = bounds.top, y = bounds.top,
w = bounds.width, w = bounds.width,
@ -1437,7 +1542,9 @@ html2canvas.Preload = function(element, opts){
i, i,
contentsLen = contents.length, contentsLen = contents.length,
background_image, background_image,
src; src,
img;
for (i = 0; i < contentsLen; i+=1 ){ for (i = 0; i < contentsLen; i+=1 ){
// var ignRe = new RegExp("("+this.ignoreElements+")"); // var ignRe = new RegExp("("+this.ignoreElements+")");
// if (!ignRe.test(element.nodeName)){ // if (!ignRe.test(element.nodeName)){
@ -1451,51 +1558,77 @@ html2canvas.Preload = function(element, opts){
background_image = html2canvas.Util.getCSS(el, 'backgroundImage'); background_image = html2canvas.Util.getCSS(el, 'backgroundImage');
if ( background_image && background_image !== "1" && background_image !== "none" ) {
// TODO add multi image background support
if (background_image.substring(0,7) === "-webkit" || background_image.substring(0,3) === "-o-" || background_image.substring(0,4) === "-moz") {
img = html2canvas.Generate.Gradient( background_image, html2canvas.Util.Bounds( el ) );
if ( img !== undefined ){
images.push(background_image);
images.push(img);
imagesLoaded++;
start();
}
} else {
src = html2canvas.Util.backgroundImage(background_image.match(/data:image\/.*;base64,/i) ? background_image : background_image.split(",")[0]);
methods.loadImage(src);
}
/*
if (background_image && background_image !== "1" && background_image !== "none" && background_image.substring(0,7) !== "-webkit" && background_image.substring(0,3)!== "-o-" && background_image.substring(0,4) !== "-moz"){ if (background_image && background_image !== "1" && background_image !== "none" && background_image.substring(0,7) !== "-webkit" && background_image.substring(0,3)!== "-o-" && background_image.substring(0,4) !== "-moz"){
// TODO add multi image background support // TODO add multi image background support
src = html2canvas.Util.backgroundImage(background_image.split(",")[0]); src = html2canvas.Util.backgroundImage(background_image.split(",")[0]);
methods.loadImage(src); methods.loadImage(src); */
} }
} }
} }
methods = { methods = {
loadImage: function(src){ loadImage: function( src ) {
var img; var img;
if (getIndex(images, src) === -1){ if ( getIndex(images, src) === -1 ) {
if(src.substr(0, 5) === 'data:'){ if ( src.match(/data:image\/.*;base64,/i) ) {
//Base64 src //Base64 src
images.push(src);
img = new Image(); img = new Image();
img.src = src; img.src = src.replace(/url\(['"]{0,}|['"]{0,}\)$/ig, '');
images.push(img);
images.push( src );
images.push( img );
imagesLoaded+=1; imagesLoaded+=1;
start(); start();
}else if (isSameOrigin(src)){
images.push(src); }else if ( isSameOrigin( src ) ) {
images.push( src );
img = new Image(); img = new Image();
img.onload = function(){ img.onload = function() {
imagesLoaded+=1; imagesLoaded+=1;
start(); start();
}; };
img.onerror = function(){ img.onerror = function() {
images.splice(getIndex(images, img.src), 2); images.splice( getIndex( images, img.src ), 2 );
start(); start();
}; };
img.src = src; img.src = src;
images.push(img); images.push(img);
}else if (options.proxy){ }else if ( options.proxy ){
// console.log('b'+src); // console.log('b'+src);
images.push(src); images.push( src );
img = new Image(); img = new Image();
proxyGetImage(src, img); proxyGetImage( src, img );
images.push(img); images.push( img );
} }
} }
@ -1507,18 +1640,18 @@ html2canvas.Preload = function(element, opts){
// add something to array // add something to array
images.push('start'); images.push('start');
getImages(element); getImages( element );
// load <img> images // load <img> images
for (i = 0; i < imgLen; i+=1){ for (i = 0; i < imgLen; i+=1){
methods.loadImage(domImages[i].getAttribute("src")); methods.loadImage( domImages[i].getAttribute( "src" ) );
} }
// remove 'start' // remove 'start'
images.splice(0,1); images.splice(0, 1);
if (images.length === 0){ if ( images.length === 0 ) {
start(); start();
} }

View File

@ -12,7 +12,11 @@ html2canvas.Util = {};
html2canvas.Util.backgroundImage = function (src) { html2canvas.Util.backgroundImage = function (src) {
if ( src.substr(0, 5) === 'url("' ) { if (/data:image\/.*;base64,/i.test( src ) || /^(-webkit|-moz|linear-gradient|-o-)/.test( src )) {
return src;
}
if (src.toLowerCase().substr( 0, 5 ) === 'url("') {
src = src.substr( 5 ); src = src.substr( 5 );
src = src.substr( 0, src.length - 2 ); src = src.substr( 0, src.length - 2 );
} else { } else {
@ -23,6 +27,41 @@ html2canvas.Util.backgroundImage = function (src) {
return src; return src;
}; };
html2canvas.Util.Bounds = function getBounds (el) {
window.scroll(0,0);
var clientRect,
bounds = {};
if (el.getBoundingClientRect){
clientRect = el.getBoundingClientRect();
// TODO add scroll position to bounds, so no scrolling of window necessary
bounds.top = clientRect.top;
bounds.bottom = clientRect.bottom || (clientRect.top + clientRect.height);
bounds.left = clientRect.left;
bounds.width = clientRect.width;
bounds.height = clientRect.height;
return bounds;
} /*else{
p = $(el).offset();
return {
left: p.left + getCSS(el,"borderLeftWidth", true),
top: p.top + getCSS(el,"borderTopWidth", true),
width:$(el).innerWidth(),
height:$(el).innerHeight()
};
} */
}
html2canvas.Util.getCSS = function (el, attribute) { html2canvas.Util.getCSS = function (el, attribute) {
// return jQuery(el).css(attribute); // return jQuery(el).css(attribute);
/* /*

109
src/Generate.js Normal file
View File

@ -0,0 +1,109 @@
html2canvas.Generate = {};
html2canvas.Generate.Gradient = function(src, bounds) {
var canvas = document.createElement('canvas'),
ctx = canvas.getContext('2d'),
tmp,
p0 = 0,
p1 = 0,
p2 = 0,
p3 = 0,
steps = [],
position,
i,
len,
lingrad,
increment,
p,
img;
canvas.width = bounds.width;
canvas.height = bounds.height;
function getColors(input) {
var j = -1,
color = '',
chr;
while( j++ < input.length ) {
chr = input.charAt( j );
if (chr === ')') {
color += chr;
steps.push( color );
color = '';
j+=2;
} else {
color += chr;
}
}
}
if ( tmp = src.match(/-webkit-linear-gradient\((.*)\)/) ) {
position = tmp[1].split( ",", 1 )[0];
getColors( tmp[1].substr( position.length + 2 ) );
position = position.split(' ');
for (p = 0; p < position.length; p+=1) {
switch(position[p]) {
case 'top':
p3 = bounds.height;
break;
case 'right':
p0 = bounds.width;
break;
case 'bottom':
p1 = bounds.height;
break;
case 'left':
p2 = bounds.width;
break;
}
}
} else if (tmp = src.match(/-webkit-gradient\(linear, (\d+)% (\d+)\%, (\d+)% (\d+)%, from\((.*)\), to\((.*)\)\)/)) {
p0 = (tmp[1] * bounds.width) / 100;
p1 = (tmp[2] * bounds.height) / 100;
p2 = (tmp[3] * bounds.width) / 100;
p3 = (tmp[4] * bounds.height) / 100;
steps.push(tmp[5]);
steps.push(tmp[6]);
} else if (tmp = src.match(/-moz-linear-gradient\((\d+)% (\d+)%, (.*)\)/)) {
p0 = (tmp[1] * bounds.width) / 100;
p1 = (tmp[2] * bounds.width) / 100;
p2 = bounds.width - p0;
p3 = bounds.height - p1;
getColors( tmp[3] );
} else {
return;
}
lingrad = ctx.createLinearGradient( p0, p1, p2, p3 );
increment = 1 / (steps.length - 1);
for (i = 0, len = steps.length; i < len; i+=1) {
lingrad.addColorStop(increment * i, steps[i]);
}
ctx.fillStyle = lingrad;
// draw shapes
ctx.fillRect(0, 0, bounds.width,bounds.height);
img = new Image();
img.src = canvas.toDataURL();
return img;
}

View File

@ -116,41 +116,6 @@ html2canvas.Parse = function (element, images, opts) {
} }
function getBounds (el) {
window.scroll(0,0);
var clientRect,
bounds = {};
if (el.getBoundingClientRect){
clientRect = el.getBoundingClientRect();
// TODO add scroll position to bounds, so no scrolling of window necessary
bounds.top = clientRect.top;
bounds.bottom = clientRect.bottom || (clientRect.top + clientRect.height);
bounds.left = clientRect.left;
bounds.width = clientRect.width;
bounds.height = clientRect.height;
return bounds;
} /*else{
p = $(el).offset();
return {
left: p.left + getCSS(el,"borderLeftWidth", true),
top: p.top + getCSS(el,"borderTopWidth", true),
width:$(el).innerWidth(),
height:$(el).innerHeight()
};
} */
}
function textTransform (text, transform) { function textTransform (text, transform) {
switch(transform){ switch(transform){
case "lowercase": case "lowercase":
@ -379,7 +344,7 @@ html2canvas.Parse = function (element, images, opts) {
wrapElement.appendChild(oldTextNode.cloneNode(true)); wrapElement.appendChild(oldTextNode.cloneNode(true));
parent.replaceChild(wrapElement, oldTextNode); parent.replaceChild(wrapElement, oldTextNode);
bounds = getBounds(wrapElement); bounds = html2canvas.Util.Bounds(wrapElement);
textValue = oldTextNode.nodeValue; textValue = oldTextNode.nodeValue;
@ -489,19 +454,6 @@ html2canvas.Parse = function (element, images, opts) {
} }
function backgroundUrl (src){
if (src.substr(0,5) === 'url("'){
src = src.substr(5);
src = src.substr(0,src.length-2);
}else{
src = src.substr(4);
src = src.substr(0,src.length-1);
}
return src;
}
function renderBorders(el, ctx, bounds, clip){ function renderBorders(el, ctx, bounds, clip){
/* /*
@ -781,7 +733,7 @@ html2canvas.Parse = function (element, images, opts) {
function renderBackground(el,bounds,ctx){ function renderBackground(el,bounds,ctx){
// TODO add support for multi background-images // TODO add support for multi background-images
var background_image = getCSS(el, "backgroundImage", false).split(",")[0], var background_image = getCSS(el, "backgroundImage", false),
background_repeat = getCSS(el, "backgroundRepeat", false).split(",")[0], background_repeat = getCSS(el, "backgroundRepeat", false).split(",")[0],
image, image,
bgp, bgp,
@ -796,24 +748,29 @@ html2canvas.Parse = function (element, images, opts) {
height, height,
add; add;
if (typeof background_image !== "undefined" && /^(1|none)$/.test(background_image) === false && /^(-webkit|-moz|linear-gradient|-o-)/.test(background_image)===false){ // if (typeof background_image !== "undefined" && /^(1|none)$/.test(background_image) === false && /^(-webkit|-moz|linear-gradient|-o-)/.test(background_image)===false){
background_image = backgroundUrl(background_image); if ( !/data:image\/.*;base64,/i.test(background_image) && !/^(-webkit|-moz|linear-gradient|-o-)/.test(background_image) ) {
image = loadImage(background_image); background_image = background_image.split(",")[0];
}
if ( typeof background_image !== "undefined" && /^(1|none)$/.test( background_image ) === false ) {
background_image = html2canvas.Util.backgroundImage( background_image );
image = loadImage( background_image );
bgp = getBackgroundPosition(el, bounds, image); bgp = getBackgroundPosition(el, bounds, image);
if (image){ if ( image ){
switch(background_repeat){ switch ( background_repeat ) {
case "repeat-x": case "repeat-x":
renderBackgroundRepeatX(ctx, image, bgp, bounds.left, bounds.top, bounds.width, bounds.height); renderBackgroundRepeatX( ctx, image, bgp, bounds.left, bounds.top, bounds.width, bounds.height );
break; break;
case "repeat-y": case "repeat-y":
renderBackgroundRepeatY(ctx, image, bgp, bounds.left, bounds.top, bounds.width, bounds.height); renderBackgroundRepeatY( ctx, image, bgp, bounds.left, bounds.top, bounds.width, bounds.height );
break; break;
case "no-repeat": case "no-repeat":
@ -934,7 +891,7 @@ html2canvas.Parse = function (element, images, opts) {
function renderElement(el, parentStack){ function renderElement(el, parentStack){
var bounds = getBounds(el), var bounds = html2canvas.Util.Bounds(el),
x = bounds.left, x = bounds.left,
y = bounds.top, y = bounds.top,
w = bounds.width, w = bounds.width,

View File

@ -147,7 +147,9 @@ html2canvas.Preload = function(element, opts){
i, i,
contentsLen = contents.length, contentsLen = contents.length,
background_image, background_image,
src; src,
img;
for (i = 0; i < contentsLen; i+=1 ){ for (i = 0; i < contentsLen; i+=1 ){
// var ignRe = new RegExp("("+this.ignoreElements+")"); // var ignRe = new RegExp("("+this.ignoreElements+")");
// if (!ignRe.test(element.nodeName)){ // if (!ignRe.test(element.nodeName)){
@ -161,51 +163,77 @@ html2canvas.Preload = function(element, opts){
background_image = html2canvas.Util.getCSS(el, 'backgroundImage'); background_image = html2canvas.Util.getCSS(el, 'backgroundImage');
if ( background_image && background_image !== "1" && background_image !== "none" ) {
// TODO add multi image background support
if (background_image.substring(0,7) === "-webkit" || background_image.substring(0,3) === "-o-" || background_image.substring(0,4) === "-moz") {
img = html2canvas.Generate.Gradient( background_image, html2canvas.Util.Bounds( el ) );
if ( img !== undefined ){
images.push(background_image);
images.push(img);
imagesLoaded++;
start();
}
} else {
src = html2canvas.Util.backgroundImage(background_image.match(/data:image\/.*;base64,/i) ? background_image : background_image.split(",")[0]);
methods.loadImage(src);
}
/*
if (background_image && background_image !== "1" && background_image !== "none" && background_image.substring(0,7) !== "-webkit" && background_image.substring(0,3)!== "-o-" && background_image.substring(0,4) !== "-moz"){ if (background_image && background_image !== "1" && background_image !== "none" && background_image.substring(0,7) !== "-webkit" && background_image.substring(0,3)!== "-o-" && background_image.substring(0,4) !== "-moz"){
// TODO add multi image background support // TODO add multi image background support
src = html2canvas.Util.backgroundImage(background_image.split(",")[0]); src = html2canvas.Util.backgroundImage(background_image.split(",")[0]);
methods.loadImage(src); methods.loadImage(src); */
} }
} }
} }
methods = { methods = {
loadImage: function(src){ loadImage: function( src ) {
var img; var img;
if (getIndex(images, src) === -1){ if ( getIndex(images, src) === -1 ) {
if(src.substr(0, 5) === 'data:'){ if ( src.match(/data:image\/.*;base64,/i) ) {
//Base64 src //Base64 src
images.push(src);
img = new Image(); img = new Image();
img.src = src; img.src = src.replace(/url\(['"]{0,}|['"]{0,}\)$/ig, '');
images.push(img);
images.push( src );
images.push( img );
imagesLoaded+=1; imagesLoaded+=1;
start(); start();
}else if (isSameOrigin(src)){
images.push(src); }else if ( isSameOrigin( src ) ) {
images.push( src );
img = new Image(); img = new Image();
img.onload = function(){ img.onload = function() {
imagesLoaded+=1; imagesLoaded+=1;
start(); start();
}; };
img.onerror = function(){ img.onerror = function() {
images.splice(getIndex(images, img.src), 2); images.splice( getIndex( images, img.src ), 2 );
start(); start();
}; };
img.src = src; img.src = src;
images.push(img); images.push(img);
}else if (options.proxy){ }else if ( options.proxy ){
// console.log('b'+src); // console.log('b'+src);
images.push(src); images.push( src );
img = new Image(); img = new Image();
proxyGetImage(src, img); proxyGetImage( src, img );
images.push(img); images.push( img );
} }
} }
@ -217,18 +245,18 @@ html2canvas.Preload = function(element, opts){
// add something to array // add something to array
images.push('start'); images.push('start');
getImages(element); getImages( element );
// load <img> images // load <img> images
for (i = 0; i < imgLen; i+=1){ for (i = 0; i < imgLen; i+=1){
methods.loadImage(domImages[i].getAttribute("src")); methods.loadImage( domImages[i].getAttribute( "src" ) );
} }
// remove 'start' // remove 'start'
images.splice(0,1); images.splice(0, 1);
if (images.length === 0){ if ( images.length === 0 ) {
start(); start();
} }

View File

@ -8,7 +8,7 @@
<head> <head>
<title>Background attribute tests</title> <title>Background attribute tests</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link href="#" type="text/css" rel="stylesheet">
<script type="text/javascript" src="../external/jquery-1.6.2.min.js"></script> <script type="text/javascript" src="../external/jquery-1.6.2.min.js"></script>
<script type="text/javascript" src="../build/html2canvas.js"></script> <script type="text/javascript" src="../build/html2canvas.js"></script>
<script type="text/javascript" src="../build/jquery.plugin.html2canvas.js"></script> <script type="text/javascript" src="../build/jquery.plugin.html2canvas.js"></script>
@ -46,10 +46,31 @@
div{ div{
display:block; display:block;
} }
.encoded {
background:url("data:image/jpeg;base64,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");
background-position: center center;
}
.linearGradient {
/*background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(rgb(255, 0, 0)), to(rgb(0, 0, 255)));*/
background: -webkit-linear-gradient(top left, #f00, #00f, #BADA55, rgba(0, 0, 255,0.5));
background: -moz-linear-gradient(top right, #f00, #00f, #BADA55, rgba(0, 0, 255,0.5));
}
.linearGradient2 {
background: -webkit-gradient(linear, 0% 0, 0% 100%, from(rgb(252, 252, 252)), to(rgb(232, 232, 232)));
}
</style> </style>
</head> </head>
<body> <body>
<div class="medium">
<div class="linearGradient">&nbsp;</div>
<div class="linearGradient2">&nbsp;</div>
</div>
<div class="medium"> <div class="medium">
<div style="background:url(image.jpg);"></div> <div style="background:url(image.jpg);"></div>
@ -88,11 +109,13 @@
</div> </div>
<div class="medium"> <div class="medium">
<div style="background:url(image.jpg) no-repeat -15% 25px;"></div> <div style="background:url(image.jpg) no-repeat -15% 25px;"></div>
<div style="background-image:url(image.jpg), url(image2.jpg); background-repeat: repeat-x; background-position: 50px 50px, 100px 100px;"></div> <div style="background-image:url(image.jpg), url(image2.jpg); background-repeat: repeat-x; background-position: 50px 50px, 100px 100px;"></div>
</div> </div>
<div class="medium">
<div class="encoded"></div>
</div>
</body> </body>
</html> </html>