JavaScript onLoad resize - javascript

I'm fairly new to programing, especially javascript. I have created what I am regarding as an net-art project that refreshes a browser and cycles through a series of images. I want the browser window to automatically resize to the dimensions of the images, 612x612 px. I've tried everything I can think of, everything I've come across on the web, and nothing seems to work with the code I have set up for the refresh and image load. I need assistance.
Let me say that I am normally against such unser unspecified browser resizes or any intrusive script that doesn't allow the user to make that decision on his/her own. But this is an art project and will only exist as part of a gallery on my own website and the user will be warned ahead of time, before clicking the link, that their browser will resize.
What I want is for the browser to resize to the specified dimensions when the page loads, then cycle through the images, via the automatic refresh.
So please, anyone who would be willing to offer their assistance with this I would be very very grateful. I've gotten pretty far I think and this resize is the last little bit of the puzzle. Thank you in advance.
You can see the rough project with no resize here: http://jasonirla.com/bgchange%202/
and the code I'm using:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="title" content="Background Change" />
<meta name="description" content="Background Change" />
<title>Everyday Sky</title>
<script type="text/javascript">
// auto refresh window PT 1
function timedRefresh(timeoutPeriod) {
setTimeout("location.reload(true);",timeoutPeriod);
}
// no. of images in folder is 43
var totalCount = 43;
// change image on refresh
function ChangeIt() {
var num = Math.ceil( Math.random() * totalCount );
document.body.background = 'images/'+num+'.jpeg';
}
</script>
</head>
<!-- Refresh PT 2 with timer in seconds 5000=5seconds-->
<body onload="JavaScript:timedRefresh(100);">
<script type="text/javascript">
ChangeIt();
</script>
<style type="text/css">
body {
background-repeat: no-repeat;
}
</body>
</html>

It's true, you can only set the size of a browser window by creating a new window with JavaScript but many security settings will block pop-up windows. I think it's bad UI design to do what you're attempting anyway. If you really want something modern and highly functional, Lightbox (as mentioned above) is a great tool as well as the dialog box in the jQuery UI.

Since this for an exhibition, you will choose what browser to use but most new browsers dont let JavaScript resize them anymore. Worth a try, though.
<body onload="JavaScript:timedRefresh(100);resizeTo(500,500);self.moveTo(640,10);>
....
</body>
Cheers.

Related

How can I change my code to be able to calculate different urls instead of the current page

I'm trying to calculate the load time and page size of different URLs/Pages similar to the developer tools performance tab but in javascript. But the current code only calculates its current page instead of a different URL. Is there any way for me to do this because with my research I have no luck.
<html>
<head>
<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Expires" content="0">
<script type="text/javascript">
var start = new Date().getTime();
function onLoad() {
var now = new Date().getTime();
var latency = now - start;
alert("page loading time: " + latency+"\n"+"Start time:"+start+"\n"+"End time:"+now);
alert("Load_size:"+document.getElementsByTagName("html")[0].outerHTML.length + "KB");
}
</script>
</head>
<body onload="onLoad()">
<!- Main page body goes from here. -->
</body>
</html>
It will not be possible to read the runtime parameters of a page outside the page your javascript is running on.
Part of the security model is to avoid being able to inspect the runtime of other pages. This is called the "sandbox". You'll need to build a plugin that breaks the sandbox to inspect the domLoad / domReady and other performance events.
Good news though, you probably have one built in! The console for modern browsers shows all those events in the timeline tab.
If you're trying to make a service that attempts to evaluate the runtime of other pages, you'll need to load those in a virtual web browser on the server and interpret the results using selenium or something similar.
You can try this to calculate the load time of a page:
<script type="text/javascript">
$(document).ready(function() {
console.log("Time until DOMready: ", Date.now()-timerStart);
});
$(window).load(function() {
console.log("Time until everything loaded: ", Date.now()-timerStart);
});
</script>
edit: this will only work on pages where this JS code will run, so if you cant insert code onto the page you wont be able to run it.

$(window).height() inside iframe?

Today I faced some really stranger bug. For example: my site opens in the iframe(this iframe automatically fit all document space, width and height) inside this frame I need to get value of $(window).height(); and I get... Very big value(5000-10000px).
Demo link - http://bug-wheight.divshot.io/
Open this in your browser, then resize window one-two-times and look at counter. This value is not correct.
Info: bug detected in chrome, version 41.0.2272.118(mac). Safari on iOS 8.0.1 also returns very big values. Mozilla(ver. 35.0.1) returns small integers(is about 35px, what?). My screen size: 2560 x 1440.
And question: how I can get real window height value?
try add Document type definition in your html code
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
</body>
</html>
It will work fine.

Image onload, another error in IE - fairly sure it's not a caching error

This code is the core of a much larger script that works great in almost all browsers. Yet it didn't work in IE. So I've stripped it down and found that the image.onload isn't firing in IE.
I've done some research, and I've guarded against it being an image caching problem. For one, the error occurs first time round before anything is cached, and, more importantly, the onload event is attached before the src.
I'm also reasonably sure I'm attaching the onload event in an IE compatible manner, so what gives, why don't I get an alert?
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript">
function generate(){
var imageGen = document.createElement("img");
imageGen.setAttribute('onload',"primer()");
imageGen.setAttribute('src', "http://www.google.co.uk/images/srpr/logo3w.png");
document.getElementById('image').appendChild(imageGen);
}
function primer() {
alert("here now");
}
</script>
</head>
<body onload="generate()">
<div id="image">
</div>
</body>
</html>
I'm hosting a version here
I only have access to IE8 unfortunately, so I don't know if it persists across other versions, even so it needs to be fixed.
First of all, events are not attributes and must not be set using setAttribute. It might, or might not work.
Second, try creating image object instead of image element:
var imageGen = new Image();
imageGen.src = "http://www.google.co.uk/images/srpr/logo3w.png";
imageGen.onload = primer;
document.getElementById('image').appendChild(imageGen);
Live test case - worked fine for me on IE9 and IE9 compatibility mode which should be like IE8.
Can you try imageGen.onload = primer instead of imageGen.setAttribute('onload',"primer()"); ?

Bring window to front

How can I bring a non-active (means another window is in front of that page) to the front?
I've tried self.focus and window.focus, but it doesn't work...
I can't control the window in the front, because it's from a third-party plugin...
many thanks to every hint :)
Greetz,
Camillo
EDIT: Here the code I'm using on my site (that i'm trying to bring to front):
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Gallery</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
<script type="text/javascript">
var timeFrame;
$(function() { timeFrame=setInterval("lpcAuto();", 100);});
function lpcAuto(){
if ( $(document.activeElement).attr('id')=="lpcframe" ){
// HERE THE SNIPPET I'M SEARCHING :)
}
}
</script>
First, you have to call blur() on the window that is on top. Then call focus() on the window that you want to call to the top.
Also note that browsers these days have popup blockers that prevent you from doing this, and you must disable these.
I performed the following test in Firefox 45 and wanted to share:
setTimeout(function(){window.focus()}, 2000);
a) Alt-tab to another window will bring the desired window to the front after 2s.
b) Minimizing the window will restore it and bring it to front after 2s.
c) Changing tabs will not let the tab re-gain focus.
d) Changing tabs and then Alt-tab to another window will not bring the first window to the front.

How can I do a script to catch strings as input and open them on a firefox document?

How can I do a script to catch strings as input and open them on a Firefox document? Each link would go to a different window or tab. Any ideas would be much appreciated.
I just want to be able to take some links and open them. For example I have 50 Links. And copying and parsing those 50 Links take a really long time and also a lot of work. If I can just write a script to read those links and let the computer do the work, it will be very helpful for me. I just don't know how to write that or where because it does not sound too hard (just gotta know how to). Thanks for any suggestions.
if i got you right, i guess you could do something like this. This will open the four urls listed but it will probably be blocked by the popup blocker.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Documento sin título</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<script>
<!--
var dir = new Array();
dir[0] = "http://www.creativecorner.cl/";
dir[1] = "http://www.sourcing.cl/";
dir[2] = "http://www.feeds.cl/";
dir[3] = "http://www.neonomade.com/";
for(i = 0 ; i < dir.length ; i++){
window.open(dir[i],'autowindow' + i,'width=1024,height=768');
}
-->
</script>
</body>
</html>
Write this to a file names "links.html" on your hard disk:
<html>
<head><title>Your links</title></head>
<body>
Your links:<br />
XXX<br />
</body>
</html>
Replace the two "XXX" with one link and emit one "link" (a) line per link. You should be able to do that in most text editors with a little search'n'replace. After you're done, save the file and open it in your browser.
Another option is to look at the bookmark file of your browser and to duplicate the format. You can usually ignore things like "last visited", etc. Just add the links.
If you want to do this in JavaScript, you will need to use a form with a textarea. Create a small HTML document with a form, the JavaScript, the textarea and a div for the result.
Add a button which calls a JavaScript function which takes the text from the textarea, split it into lines and create the HTML above (only the link-lines) as a String. Now assign this string to the attribute innerHTML of the div to make the links clickable.

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