I'm currently working on a JSP/HTML web page where I need to disable or "gray out" the entire page when a button is clicked. This will prevent the user from accessing any other elements on the page until it's disabled.
Any ideas on how to achieve this?
Cascading Style Sheets (CSS):
#overlay {
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
opacity: 0.80;
background: #aaa;
z-index: 10;
display: none;
}
HyperText Markup Language (HTML) :
<body>
<div id="wrapper">
// your normal content goes here
</div>
<div id="overlay"> </div>
</body>
jQuery :
//trigger on any necessary event.
$("#overlay").fadeIn(100);
alert("something");
$("#overlay").fadeOut(100); //after completion.
You have the option to utilize the jQuery BlockUI Plugin for your needs.
It offers an easy and straightforward solution.
There are many ways to accomplish this task. Personally, the easiest method I have found is to utilize a div tag to overlay the page and then remove it once the event is finished.
$('body').append('<div id="over" style="position: absolute;top:0;left:0;width: 100%;height:100%;z-index:2;opacity:0.4;filter: alpha(opacity = 50)"></div>');
This code snippet will insert a div tag covering the entire body. Once the function is complete, add the following line:
$("#over").remove();
For those proficient in JQuery who require user input above the gray section, consider utilizing JQuery UI Dialog, and configuring it as a modal
To implement this technique, start by including a div with 100% width and height over the entire content.
$('body').append('<div class="overlay"/>').css({
position: 'absolute',
height: '100%',
width: '100%',
zIndex: '999'
});
Next, set the z-index of your modal window to be higher than the overlay, for example z-index: 1000.
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