Detect when document has completely loaded (including images) - javascript
I have an HTML page with about 100 images. How can I detect when the page has completely loaded, including all images? I have been using the following code, and it seems to work in Chrome 80.
document.onreadystatechange = function () {
if (document.readyState == "complete") {
setTimeout(init, 10);
}
}
However, Firefox 72 fires the init function right away. I can see the images as they pop in and are downloaded after the init function has fired. Is there a cross browser method to do what I need? Thanks.
I have tried window.onload, document.onreadystatechange and window.addEventListener('load', ...) already.
FYI, the image files are PNG format, but are embedded within an SVG file. And the SVG file is embedded within the HTML file. I can post a link if it is desired.
Edit: This is as minimal as I could get it.
<!DOCTYPE html>
<html>
<head>
<title>minimal reproducible example</title>
<meta charset="UTF-8">
<style>
body {padding:0;margin:0;color:#ffffff;background-color:#404040;}
#cross {z-index:2;position:fixed;left:50%;top:50%;visibility:hidden;}
#embed {z-index:1;visibility:hidden;}
#load {z-index:-1;position:fixed;display:inline-block;left:50%;top:50%;width:10em;margin-left:-5em;text-align:center;}
</style>
<script>
function init() {
// in firefox 72 the embedded PNG images are loaded noticeably after the SVG image is made visible instead of before
document.querySelector('#embed').style.visibility = 'visible';
document.querySelector('#cross').style.visibility = 'visible';
}
window.onload = function () {
setTimeout(init, 10);
}
</script>
</head>
<body>
<div id="load">Loading...</div>
<svg id="embed" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1024" height="1024" viewBox="0 0 1024 1024">
<image width="1024" height="1024" x="0" y="0" xlink:href="data:image/png;base64,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" />
</svg>
<img id="cross" width="16" height="16" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsIAAA7CARUoSoAAAAAsSURBVDhPY2xoaPjPQAkAGQAEDORgkF4mqDlkg1EDRg0AgVEDGBgozM4MDAB7ETPvhopeAgAAAABJRU5ErkJggg=="/>
</body>
</html>
What is supposed to happen:
Render gray screen with text "Loading..."
Small gray box appears at the same time (actually immediately after) large grid image is loaded
What happens in Firefox 72:
Render gray screen with text "Loading..."
Small gray box appears before the large grid image is loaded
Not sure how to slow things down enough so the difference is noticeable. You could try copy/paste-ing the large grid image 100 times, moving them to the right by 1024px each time.
Related
Why is my canvas embedded in an inline SVG not updating?
It seems like a contrived problem but I am trying to make a proof of concept of an HTML 5 document, containing inline SVG, which itself contains a <foreignObject> element with an HTML canvas inside. I then want to call a JavaScript function to draw on the canvas.
(How I got here: I want to use SVG as a format for defining an animated graphical view which can contain graphs, which are animated by replacing a dummy element in the SVG with a live graph using JavaScript / ECMAScript, and one of the JavaScript libraries we are considering to generate the graphs (Flot) uses an HTML canvas for the view, so I want to inject this canvas into the SVG view. A further complication is we ideally want this system to run on local files, on the file:// protocol, meaning we can't run scripts on external files (e.g. referenced with <object> or <iframe>) because browsers block them, hence the inline SVG.)
Here is an HTML source illustrating the problem:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Canvas Test</title>
<script type="text/javascript">
function draw_box() {
var canvas = document.getElementById("box_canvas");
var context = canvas.getContext("2d");
context.fillRect(50, 20, 50, 60);
}
</script>
</head>
<body>
<h1>Canvas Test
<p>
<svg width="400" viewBox="-10 -10 268 108">
<rect style="fill: #a0a0a0" x="8" y="8" width="240" height="80" rx="40" ry="40"/>
<g>
<rect style="fill: #0000ff" x="0" y="0" width="240" height="80" rx="40" ry="40"/>
<rect style="fill: none; fill-opacity:0; stroke-width: 2; stroke-linejoin: round; stroke: #000000" x="0" y="0" width="240" height="80" rx="40" ry="40"/>
<foreignObject x="120" y="25" width="150" height="100">
<canvas id="box_canvas" width="150" height="100" style="border:1px dotted;float:left">Canvas alt text</canvas>
</foreignObject>
</g>
</svg>
<p>
<button type="button" onclick="draw_box();return false">Animate</button>
</body>
</html>
The above page doesn't display the canvas at all in IE 11. In the latest version of Chrome it displays the canvas, but the effects of the JavaScript function called by the button - drawing the black box - only show up if you click on the SVG image.
What I need to know:
1) Is there something wrong with what I've written - e.g. am I missing some function call to make the SVG or foreignObject update after I have drawn on the canvas?
2) Is this a lost cause? Is the specification of <foreignObject> etc. immature enough that I could never be confident that this will work, even if we can control what browser the user views the document in? It's actually fine if this is the case because we can just say going forward that we need our graph library to generate SVG and not HTML.
Thanks a lot
SnapSVG browser incompatibility
How come this code works smoothly in chrome and not in firefox?
I use SnapSVG.
JS:
var pinguin = Snap("#pinguin");
Snap.load("pinguin.svg", bodyload ) ;
function bodyload( data ){
pinguin.append( data );
};
Html:
<svg id="pinguin" ></svg>
<script src="snap.svg.js"></script>
<script src="main.js"></script>
What I get on Chrome:
What I get on Firefox:
I tried to make a fiddle, but the fiddle doesn't work.
Instead, the code and display can be get here: http://www.pinguin.moe/
Do you know how can I fix the display on Firefox?
I think you need to add a width and height to your outer SVG. There is one in the svg file, but not in the markup on the main page. If you set this to 800,600 for example, it should work. <svg id="pinguin" preserveaspectratio="xMinYMin meet" viewbox="0 0 300 750" width="800" height="600">
How to get hammer.js to work with svg files without using jquery?
I am trying to implement the hammer.js with svg files and without using any jquery. I'm trying to use the sample code from the hammer.js site {https://github.com/EightMedia/hammer.js/wiki/Getting-Started}. I have the external javascripts called like this.
<script src="javascript/hammer.js" type="text/javascript"></script>
My javascript is as follows:
<script type="text/javascript">
//<![CDATA[
var element = document.getElementById("testsvg");
var hammertime = Hammer(element).on('doubletap', function(event){
alert("doubletap!");
return false;
}
);
//]]>
</script>
My svg looks like the following.
<svg version="1.1" id="testsvg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="585px" height="230" viewBox="0 0 585 230" enable-background="new 0 0 585 230" xml:space="preserve">
<rect x="10" y="10" height="210" width="565" style="stroke:#006600; fill: #00cc00"/>
</svg>
Starting out, I'm just trying to get any detection to work. I do not get any alert when I double tap. I have also tried to implement this with the hammer.fakemultitouch.js plugin on my desktop. Neither the desktop or touch environment do anything.
Anyone have any idea what I might be doing wrongly?
Thanks,
--christopher
First make sure hammer.js is loading correctly. If it is, then you are most likely executing the javascript before the DOM is loaded. The easiest way to fix this is to place your <script> right before the closing </body> tag (near the bottom of your html file). You can also wrap your code in a load event function such as...
window.onload = function(){
var element = document.getElementById("testsvg");
var hammertime = Hammer(element).on('doubletap', function(event){
alert("doubletap!");
return false;
});
}
Snap.load() external SVG fails to Load
PROBLEM:
I'm using Snap.svg to create some basic interactive graphics, but for some reason I can't get my external SVG file to load using Snap.load(). I've pulled code straight from the tutorial at snap.io and checked and double-checked the docs. My SVG file renders in the browser fine, it just doesn't display inside the Snap SVG. Other shapes (i.e. not pulled in using Snap.load() ) do display.
CODE:
I've boiled my example down to the most simple HTML and SVG files imaginable, and the Snap.load() method still isn't working for me. Does anyone see what I'm missing?
HTML:
<head>
<style media="screen">
#svg {
width: 300px;
height: 300px;
}
</style>
<script src="snap.svg-min.js"></script>
<meta charset=utf-8 />
</head>
<body>
<svg id="svg"></svg>
<script type="text/javascript">
var s = Snap("#svg");
Snap.load("svgtest.svg");
</script>
</body>
SVG (originally exported from Illustrator):
<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="100px" height="100px" viewBox="0 0 100 100" enable-background="new 0 0 100 100" xml:space="preserve">
<rect x="14" y="33" fill="#2BB673" width="70" height="30"/>
</svg>
UPDATE:
Updated the code as per #Ian's suggestion -
var s = Snap("#svg");
Snap.load("http://www.w3.org/TR/SVG/images/struct/Use01.svg", onSVGLoaded ) ;
function onSVGLoaded( data ){
s.append( data );
}
- but still no display of external SVG. I tried using an SVG from w3.org just to be sure it wan't a problem with the file itself or my domain.
The load function takes a callback, as loading can take some time. So I think you would do something like the following...
var s = Snap("#svg");
Snap.load("svgtest.svg", onSVGLoaded ) ;
function onSVGLoaded( data ){
s.append( data );
}
Edit: There may be some access control issues if not accessing from the same server as the script, check the console log for any errors.
I was having exactly this problem in Internet Explorer only, and it turned out to be because the SVG file I was loading in was a minified one from which the doctype had been removed. Other browsers were ok without the doctype, but leaving the doctype in fixed the problem in IE as well:
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
In case, like me, you're using Grunt to minify SVGs, you can leave the doctype in by adding the following option to your Gruntfile:
svgmin: {
options: {
plugins: [
{ removeDoctype: false }
]
}
// etc...
}
There is a small bug in the distribution - see https://github.com/adobe-webplatform/Snap.svg/issues/196. The suggested fix works correctly. The online demo works because it is referencing a much older build of the library.
With version 0.5.1 installed. The code in the correct answer above needs to be re-written as follows to work:
var s = Snap();
Snap.load("svgtest.svg", onSVGLoaded ) ;
function onSVGLoaded( data ){
s.append( data );
}
How to access SVG elements with Javascript
I'm messing around with SVG and I was hoping I could create SVG files in Illustrator and access elements with Javascript. Here's the SVG file Illustrator kicks out (It also seems to add a load of junk to the beginning of the file that I've removed) <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="276.843px" height="233.242px" viewBox="0 0 276.843 233.242" enable-background="new 0 0 276.843 233.242" xml:space="preserve"> <path id="delta" fill="#231F20" d="M34.074,86.094L0,185.354l44.444,38.519l80.741-0.74l29.63-25.186l-26.667-37.037 c0,0-34.815-5.926-37.778-6.667s-13.333-28.889-13.333-28.889l7.407-18.519l31.111-2.963l5.926-21.481l-12.593-38.519l-43.704-5.185 L34.074,86.094z"/> <path id="cargo" fill="#DFB800" d="M68.148,32.761l43.704,4.445l14.815,42.963l-7.407,26.667l-33.333,2.963l-4.444,14.074 l54.074-1.481l22.222,36.296l25.926-3.704l25.926-54.074c0,0-19.259-47.408-21.481-47.408s-31.852-0.741-31.852-0.741 l-19.259-39.259L92.593,8.316L68.148,32.761z"/> <polygon id="beta" fill="#35FF1F" points="86.722,128.316 134.593,124.613 158.296,163.872 190.889,155.724 214.593,100.909 194.593,52.02 227.186,49.057 246.444,92.02 238.297,140.909 216.074,172.761 197.556,188.316 179.778,169.798 164.963,174.983 163.481,197.946 156.815,197.946 134.593,159.428 94.593,151.279 "/> <path class="monkey" id="alpha" fill="#FD00FF" d="M96.315,4.354l42.963,5.185l18.519,42.222l71.852-8.148l20.74,46.667l-5.926,52.593 l-24.444,34.074l-25.185,15.555l-14.074-19.259l-8.889,2.964l-1.481,22.222l-14.074,2.963l-25.186,22.963l-74.074,4.444 l101.481,4.444c0,0,96.297-17.777,109.63-71.852S282.24,53.983,250.389,20.65S96.315,4.354,96.315,4.354z"/> </svg> As you can probably see, each element has an ID, and I was hoping to be able to access individual elements with Javascript so I could change the Fill attribute and respond to events such as click. The HTML is bog basic <!DOCTYPE html> <html> <head> <title>SVG Illustrator Test</title> </head> <body> <object data="alpha.svg" type="image/svg+xml" id="alphasvg" width="100%" height="100%"></object> </body> </html> I guess this is two questions really. Is it possible to do it this way, as opposed to using something like Raphael or jQuery SVG. If it is possible, what's the technique? UPDATE At the moment, I've resorted to using Illustrator to create the SVG file, and I'm using Raphaël JS to create paths and simply copying the point data from the SVG file and pasting it into path() function. Creating complex paths such as might be needed for a map, by coding the point data manually is (to my knowledge) prohibitively complex.
Is it possible to do it this way, as opposed to using something like Raphael or jQuery SVG?
Definitely.
If it is possible, what's the technique?
This annotated code snippet works:
<!DOCTYPE html>
<html>
<head>
<title>SVG Illustrator Test</title>
</head>
<body>
<object data="alpha.svg" type="image/svg+xml"
id="alphasvg" width="100%" height="100%"></object>
<script>
var a = document.getElementById("alphasvg");
// It's important to add an load event listener to the object,
// as it will load the svg doc asynchronously
a.addEventListener("load",function(){
// get the inner DOM of alpha.svg
var svgDoc = a.contentDocument;
// get the inner element by id
var delta = svgDoc.getElementById("delta");
// add behaviour
delta.addEventListener("mousedown",function(){
alert('hello world!')
}, false);
}, false);
</script>
</body>
</html>
Note that a limitation of this technique is that it is restricted by the same-origin policy, so alpha.svg must be hosted on the same domain as the .html file, otherwise the inner DOM of the object will be inaccessible.
Important thing to run this HTML, you need host HTML file to web server like IIS, Tomcat
In case you use jQuery you need to wait for $(window).load, because the embedded SVG document might not be yet loaded at $(document).ready
$(window).load(function () {
//alert("Document loaded, including graphics and embedded documents (like SVG)");
var a = document.getElementById("alphasvg");
//get the inner DOM of alpha.svg
var svgDoc = a.contentDocument;
//get the inner element by id
var delta = svgDoc.getElementById("delta");
delta.addEventListener("mousedown", function(){ alert('hello world!')}, false);
});
If you are using an <img> tag for the SVG, then you cannot manipulate its contents (as far as I know). As the accepted answer shows, using <object> is an option. I needed this recently and used gulp-inject during my gulp build to inject the contents of an SVG file directly into the HTML document as an <svg> element, which is then very easy to work with using CSS selectors and querySelector/getElementBy*.