on loading a page I have some javascript code which hides some layers
document.getElementById(layerName).style.display = "none";
Everything works well, but in IE and in Opera these DIVs are showing up for the first few milliseconds while the page loads. After that, it's back to normal.
Is there a way around that?
Thanks!
If you run code when the page loads, it will not run until the page finishes loading.
Instead, you can put the code in a <script> block below the elements, without handling onload.
Or you just use CSS.
you could set display to false in you HTML code
Is there a way around that?
It's called CSS:
.layer {
display:'none';
}
This problem occurs because of the way the browser renders the page. CSS is first before Javascript. So always try to do things in CSS when possible.
place this script immediately below the div placed. you will almost clear the problem
Related
I have tried to implement this kind of script (Page Transition): here
Everything is going fine as demo provided. But only 1 problem that I cant figure out is:
I have 2 HTML files which is index.html & index2.html. On index.html I put the link with the page transition effect after clicked it goes to index2.html which is on index2.html I was put in some alert script using body on-load method.
Supposedly in normal practice, the alert will appear as normal we seen for debuging. But it doesn't appear anything. Seem like it doesn't load any script after page transition done.
Can somebody give me a clue to solve this? What I have tried is using :
location.reload(); window.location.reload(); etc.. till I don't have idea to fix this :(
*location.reload() works on desktop browser but doesn't work on mobile. My priority target browser is on mobile version.
Please help & Many Thanks
for demo purpose and needs help : here
It wasn't executed because the page never really loaded. The way that page transition script worked is by loading the content of the target page via ajax, replacing the entire content of the page with it.
From the page you provided, it seems like the script accepts a callback function to be called when the page finishes loading, you can put your 'loaded' script there. But keep in mind, what is being executed is the script on that first page.
I don't know what you are trying to make, but I guess it would be better for you to look into a proper single page app with URL matching. There are frameworks like Backbone.js that can help you with this.
Is there in HTML (javascript) or other static html tech
can:
Stop page loading (if browser does not download yet)
Stop page rendering (from where the code placed)
Stop javascript executed (from where the code placed)
Simply put, is there a code like
<script>window.StopWhateverBelow()</script>
To let browser totally ignore whatever below the code.
UPDATE
I understand the browser may already download the whole thing. What I want is, from the code, page should stopped, for example: if I put the code just after <body> visitor should see blank page, if I put the code in middle of the page, page should be just half like you pressed ESC
ANSWER
As bukko suggested, comments done the trick. But not full, just half
If you put <!-- in html page, the rest will be ignored. And in Javascript
document.write('<!--');
Done the trick.
For about make sense:
Here is how this code make sense: when you page load some offpage script, the script is dynamic. When the script code found something wrong (or match some condition), you have one more option to stop the page from rendering, loading, download...
You could do window.stop(); for most browsers besides Internet Explorer. For IE, I had to use document.execCommand('Stop');
If you already have html comments on your page, #bukko's solution doesn't fully work. Stuff after the html comment will get rendered normally.
Something else to try is:
document.write('<script type="text/undefined">')
The rest of the document gets interpreted as part of the script tag, and because the script isn't text/javascript, it gets ignored.
Worked for me, thought I'd share it.
Edit
I've seen the script trick not work in Chrome.
This does work, but I have not done extensive browser testing:
document.write('<style type="text/undefined">')
window.stop(); //works in all browsers but IE
if ($.browser.msie) {document.execCommand("Stop");}; //works in IE,
document.execCommand works in IE, however it does stop some of FF, NS and some other browsers' functions. Like displaying GIF's animation for example. Using "if browser is IE" makes these two codes work perfectly in all browsers.
Well, there is:
<!--
terminated by
-->
for HTML, but scripts will ignore this.
What you are asking makes no logical sense. Simply for two reasons:
Data is ALREADY sent to the user (HTML / JS) so even tho if you COULD hide content, the data would sitll be there for a user to see (if they view source for instance).
Why would you stop 'execution' of a page? It loads simple html structure and reults in a visual display, you should focus on the server site (php for instance) to hide or not send the content in the first place.
If you want to visually hide elements tho, you could use CSS styles (hide divs or the like) with simply adding style="display:none;" to a div like so:
<div style="display:none;">
This text will be downloaded by the user, but hidden from view due to CSS inline style
</div>
If you want to add commenting (thats just for your reference), then use comment formatting:
<!-- this is a comment and will not show up to a user -->
Reference for comments: http://htmlhelp.com/reference/wilbur/misc/comment.html
put window.Stop() wherever you want to stop the page from getting renderred
You could also hide the body like that:
var style = document.createElement("style");
style.innerHTML="body { display:none !important; }";
document.getElementsByTagName("HEAD")[0].appendChild(style);
HTML is static content so the server reads whatever you have written in the file unless you comment it out. For a dynamic file like what you are asking for you need to use php which can do this type of thing.
Just not much related to the question, but I thought it may be useful for some persons. If you want to jump to other page during page loading use window.location = "somepage.html"; or you can redirect users to the previous page: window.history.go(-1); Useful in JavaScript conditional statements
If you are using ASP or PHP, HTTP protocol automatically stops but HTTPS protocol don't stop automatically.
To stop it use:
In ASP:
dim r= accept.secure.protocol
r.onload=window.callback('c')
//to firefox,opera,safari
new clientObject(r).access()
// to chrome,ie
forEachElement(a==null);
PHP code:
$a.window ;
All this scripts sends the browserstring "elementcast" by post method
The stop methods can break things that have already started to load.
If you want to load everything above a certain point and skip everything below a certain point:
<p>Everything works above this point.</p>
<pre style="display: none !important;">
<p>As long as the PRE tag remains open,
nothing works below this point</p>
<script>document.write('Nope');
For some reason only the header of this page loads on first load. On subsequent page loads, the entire page content is loaded. What may be the problem for such an issue ?
Your loading a lot of Javascript files. Try to see if some of theese maybe are the problem by taking them out and test again.
there seems to be an unclosed element
see validation here
not to be rude but you are also using obsolete tags
I'm working on a project where there's quite a lot of jQuery going on. So when I go to the page, I can see the jQuery running (e.g. $.button() elements on the page still appear as normal html elements before jQueryUI is loaded :S) so initially it looks all ugly THEN, once all the JS is loaded and executed, it looks "nice".
It's not just a case of preloading images or whatever, I want to RUN the jQuery code, but "hide" it from visitors so that once the page is opened, it looks "nice" straight away OR displays a black screen saying "Loading..." until the jQuery has finished running.
Take a look here: http://www.filamentgroup.com/ , though I'm not sure that actually runs the site's javascript before displaying it, but it shows the basic idea of having a dark screen saying "Loading...".. I suspect that's what happens in large web apps such as SlideRocket though it does use flash... :S
You answered the question yourself. Have some kind of loading screen that hides the page until all of the jQuery is run.
Try something like the following.
This goes at the top of your page:
<div id="loadingMask" style="width: 100%; height: 100%; position: fixed; background: #fff;">Loading...</div>
Here's your jQuery:
$(document).ready( function() {
/*
* ... all of your jQuery ...
*/
// At the bottom of your jQuery code, put this:
$('#loadingMask').fadeOut();
});
Wrap all of your jQuery that you want "preloaded" into this :
$(window).load(function() {
//Your jQuery here
});
or alternatively, not all of your jQuery code inside of that wrapper. Rather, put your jQuery DOM changes into a
$(document).ready(function(){
//jQuery
}))
and then have a wrapper for all your site content.
<div id="everything-wrapper">
<!-- put your body here -->
</div>
and set the display to none in your CSS
#everything-wrapper {
display : none;
}
and then with the window load like earlier
$(window).load(function() {
$("#everything-wrapper").show();
// or
$("#everything-wrapper").fadeIn("fast");
// to be fancy with it
});
I was having a similar issue with an artifact popping up briefly during page loads in IE8. The solution I used was to change the visibility of the container to hidden at line 1 of the css. Then showed the element at the end of the jquery file. If the css and jquery start arguing, the element isn't shown until the argument is resolved.
I would have a overlay as part of your static CSS and HTML, then when JQuery loads via
$(document).ready() you can hide the overlay
The answer by Christopher is most likely the way FilamentGroup do it. You can have javascript "preloaded", it loads inline with the rest of the page, and due to it usually being larger than the rest of the page takes longer to download. You can't make javascript load first, that's not the way it works.
However, the principle to make it work is to "hide" your page from view in CSS (or with inline styles as the CSS will still have to load) then once everything is ready in javascript show it all again. If you notice there is a gap between the page displaying (nothing) and the javascript loading showing on FilamentGroup. That is because they hide the page, the javascript loader loads, then once the rest of the javascript has finished it hides the loader and shows the page.
Dude, I did you up a sample. I hope you likes. I use something like this on my own site.
http://jsfiddle.net/jMVVf/
Hey! Let's say I have a big application in one .html file. Another file, that should be pretty lightweight, is the "loader" page. The small file loads and then calls the big file while displaying something like "loading"...
I know I can use a hidden iFrame and unhide it on it's onload event. However, I don't like iFrames. So how could I do this without one? AJAX maybe? Any other way?
http://www.queness.com/post/328/a-simple-ajax-driven-website-with-jqueryphp
Gives exactly what you are suggesting? With a little loading div on ajaxRequest and closing it on ajaxSucces.
Could you have a container div with the css set to display:none; and then switch it to display:block; on the onload event.