I have a master page Root.master and a page default.aspx . I want to display progress bar until whole default.aspx page is loaded .
I tried following code:-
<html>
<head><title>xx</title>
</head>
<body style="visibility:hidden;" onload="function(){document.body.visibility='visible'}">
<img src="xxxx.gif" style="visibility:visible !important">
</body>
</html>
But problem is that I do not have body on default.aspx , it is on root.master , if we put it on root.master, it apply all pages which inherit from root.master .
So there is another for it .
Please suggest me usable link or samples.
in your sample if you are using jQuery, you can use following re-factoring to your code
$(document).load(function(){
$('body').css('visibility','visible');
}
You can add a reference to jQuery and then do a little code something like:
<html>
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(){ // Wait until the page has finished loading
if ($(".ProgressBar")) // Detect the element with class ProgressBar
{
$(".ProgressBar").hide(); // If found, set it to be display:none;
}
}
</script>
</head>
<body>
<div class="ProgressBar">
<img src="Whatever.gif" alt="Please wait..." />
</div>
</body>
</html>
Also doable without jQuery but it's just so much easier to use it ;)
That way the progress bar gif loads, and once the page is done it is set to invisible.
I hope that might help! Good luck.
You don't mention any libraries, so here is a pure js solution:
http://jsfiddle.net/TTU7v/
The idea is to put the script as close to the opening body tag (but after it!) as possible:
<script type="text/javascript">
var body = document.getElementsByTagName("body")[0];
body.style.visibility = "hidden";
window.onload = function(){body.style.visibility = "visible";};
</script>
Related
Suppose I have a page named a.html and a picture x.
Now, when users go to a.html, I want to show the picture x for 3/4s then I want to show the page content.
Can anyone help me to do this?
Here is a small code that will use pure js to show a image prior to showing the content of the site. I think this is similar to what people use to show a loading image before loading the content.
<html>
<head>
<title>Image before loading content</title>
</head>
<body onload="show();">
<div id = "myDiv">
<img id = "myImage" src = "http://jimpunk.net/Loading/wp-content/uploads/loading45.gif">
</div>
<div id="content" style="display: none;">
This is a CONTENT SECTION Put your content here
</div>
<script type = "text/javascript">
function show() {
document.getElementById("myDiv").style.display="block";
setTimeout("hide()", 5000); // 5 wait, change the delay here
}
function hide() {
document.getElementById("myDiv").style.display="none";
document.getElementById("content").style.display="block";
}
</script>
</body>
This yo can put in a HTML page and you shold be able to see where i made the image and where the delay time will be happening.
Here is a working example using the above code: https://jsbin.com/pixemiwubu/edit?html,output
in HTML hyperlink, is there any way to show the second page contents in the first page?
Example:
FirstPage:
image1 image2
<div> show image on first page here </div>
Thank you very much
<iframe src="page.html" id="page"></iframe
Open new.html in an iframe
You can use an iFrame. This will create an iframe with page.html as its source, and a link that switches it to new.html
I think you want to use frame.
I don't know why (probably because you tagged javascript), I think you're trying to make something more like this (ajax loading in a div):
<!DOCTYPE html>
<html lang="es">
<head>
<title>Hope this helps!</title>
</head>
<body>
Second Page here!
<div id="hereitgoes">
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('document').ready(function(){
$("#secondpage").click(function(){
$("#hereitgoes").load("secondpage.html");
});
});
});
</script>
</body>
</html>
Remember you have to run it under a web server in order to work.
Hope it helps and that it is what you intended!
I've built a webpage that is basically a main-page with a div that is filled with different pages by using AJAX. This basically works by loading pages into a div by using innerHTML. One problem I ran into was when a page with javascript is loaded into that div all of the other code runs fine; just the javascript doesnt work.
Main-page(index.php):
<html>
<head>
<script type="text/java">
////bunch of functions////
////Ends up that page_request on this instance is 'graph.php'////
document.getElementById('mydiv').innerHTML=page_request.responseText
</script>
</head>
<body>
<div id="mydiv"><div>
</body>
</html>
Child-page(loaded in div(graph.php)):
<html>
<head>
<link rel="stylesheet" href="mystyle.css" type="text/css" media="screen" />
<script src="other_stuff.js"></script>
</head>
<body>
<script>
///bunch of script////
</script>
</body>
</html>
Now when loading the page itself (opening graph.php) I notice that everything works fine; it is just when I import graph.php to index.php through innerHTML into my div it does not work (no errors just nothing is shown). I have read through many other posts and guides and did not come up with any distictive solution; thinks I have seen were:
Put eval() around my code [I saw on a guide that this could lead
to malicious user attacks].
Create the scripts on the main page then just import the data using:
document.createElement() and .parentNode.insertBefore()
Create a listener and call the functions when I open graph.php
And this good example
Even though I am not 100% sure how this example could work because I have php populate information for the javascript to collect and then make my graph on graph.php; so if I put that function into index.php the php will already be loaded so I would have to refresh the page or call them to update information somehow. Just for some context I am ok at php but I am new and struggle with javascript so I do not know what solution would fit my situation or work the best. Any tips/examples would be greatly appreciated, thank you for your time.
From you code snippets it seems you're looking to embed complete pages within the main page. If that's the case, a more straightforward approach would be to use an iframe element instead.
For example:
...
<div id="main-page-container">
<iframe src="some-path/graph.php" scrolling="no" frameborder="no"></iframe>
</div>
...
See reference and usage example.
I would suggest using jQuery's .load() function for this.
Take a look here: jQuery API
Older browsers such as IE8 and below don't allow you insert a string that contains javascript and execute it, in any form.
Take for instance:
function addScriptText(js_code) {
var element = document.createElement("script");
element.innerHTML = js_code;
document.head.appendChild(element);
}
will not work in IE8 and below.
You must use eval to accomplish this:
function addScriptText(js_code) {
window.eval.call(window, js_code);
}
Otherwise you need to dynamically request an external js file such as:
var script = document.createElement("script");
script.type = "text/javascript";
script.src = "externalScript.js";
document.getElementsByTagName("head")[0].appendChild(script);
Note: The page you are loading (page2.html in this example) must be on the same domain as the page that is loading it (page1.html in this example)
Working solution with jQuery:
Page 1:
<!DOCTYPE html>
<html>
<head>
<title>Page 1</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript">
$(function () {
$("#page2").load("page2.html");
});
</script>
</head>
<body>
<h1>Page 1 Header</h1>
<div id="page2">
</div>
</body>
</html>
Page 2:
<h2>Page 2 Header</h2>
<script type="text/javascript">
alert("Page 2 loaded and javascript executed!");
</script>
i use that tag to alert me when a tag has been shows up
<html>
<head>
</head>
<body>
<script type="text/javascript">
document.getElementsByTagName('iframe')[0].onload = function() {
alert('loaded');
}
</script>
<iframe></iframe>
</body>
</html>
strange , since this code working :
<html>
<head>
</head>
<body>
<iframe></iframe>
<script type="text/javascript">
document.getElementsByTagName('iframe')[0].onload = function() {
alert('loaded');
}
</script>
</body>
</html>
why the Js need to under the tag to work?
what's the problem here?
Because the code in a script tag is executed immediately. And in the first example the iframe doesn't exist at that time. But what you can do is to wrap you code into an onload (for the main page) event. E.g.:
window.onload = function() {
//your code
}
Then it doesn't matter where the code is placed.
Iframe tag does not exist at the moment you are trying to access it.
You may check that by simply alerting array length, like
alert(document.getElementsByTagName('iframe'));
Have you thought about executing your javascript after the page is loaded? You may use some frameworks like jQuery to facilitate crossbrowser issues. Or just put all your javascript code to the very bottom of body.
On my site a number of operations can take a long time to complete.
When I know a page will take a while to load, I would like to display a progress indicator while the page is loading.
Ideally I would like to say something along the lines of:
$("#dialog").show("progress.php");
and have that overlay on top of the page that is being loaded (disappearing after the operation is completed).
Coding the progress bar and displaying progress is not an issue, the issue is getting a progress indicator to pop up WHILE the page is being loaded. I have been trying to use JQuery's dialogs for this but they only appear after the page is already loaded.
This has to be a common problem but I am not familiar enough with JavaScript to know the best way to do this.
Here's simple example to illustrate the problem. The code below fails to display the dialog box before the 20 second pause is up. I have tried in Chrome and Firefox.
In fact I don't even see the "Please Wait..." text.
Here's the code I am using:
<html>
<head>
<link type="text/css" href="http://jqueryui.com/latest/themes/base/ui.all.css" rel="stylesheet" />
<script type="text/javascript" src="http://jqueryui.com/latest/jquery-1.3.2.js"></script>
<script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.core.js"></script>
<script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.dialog.js"></script>
</head>
<body>
<div id="please-wait">My Dialog</div>
<script type="text/javascript">
$("#please-wait").dialog();
</script>
<?php
flush();
echo "Waiting...";
sleep(20);
?>
</body>
</html>
You'll need to run that piece of code immediately after your <body> tag, something like:
<html>
<head>
</head>
<body>
<div id="please-wait"></div>
<script type="text/javascript">
// Use your favourite dialog plugin here.
$("#please-wait").dialog();
</script>
....
</body>
</html>
Note I omitted the traditional $(function (){}) because you need this to be loaded as soon as the page is shown, not after the whole DOM is loaded.
I've done this before and works great, even if the page has not finished loading yet.
EDIT: you'll have to be certain the jQuery dialog plugin you're using is loading before your entire DOM loads. Usually this is not the case, you it won't work. In that case, you'll need to use a g'old plain JavaScript solution, such as Lightbox 1 or Lightbox 2.