Question

HTML/Javascript Hover Popup

Asked by: AncientFrib

Hello,

I need to setup a hover popup that appears only when someone hovers their mouse over the relevant content. The trick is I need to generate the output contained in this popup with a PHP function and I only want this function to run if someone hovers over the record.

If I am forced to generate this data for every record while loading the page it will take forever to load.

Any thoughts? Thank you.

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Asked On: 2009-10-21 at 11:13:57ID24831769
Tags: javascript
Topics: Miscellaneous Web Development
,; JavaScript
,; Hypertext Markup Language (HTML)
Participating Experts: 2
Points: 500
Comments: 10

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Answers

by: kadabaPosted on 2009-10-21 at 11:30:05ID: 25626822

a simple hover script.. not sure if it will be of much help..

<html>
	<head>
		<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
		<script type="text/javascript">
		$(document).ready(function () {
			 $("#hoverDiv").mouseover(function(){
				window.open("http://www.google.com");// your php page can be here...
				})
		 });
 
 
		</script>
	</head>
	<body>
		<div id="hoverDiv">
			on mouse over me you will get a pop up
		</div>
	</body>
</html>

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by: TheFootPosted on 2009-10-21 at 15:48:23ID: 25629291

Here is a working example which creates DHTML tooltips from ajax-loaded content. It displays loading message in the tooltip while the content is loaded, then displays the content.

Hope this helps.. TheFoot

<!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>
	<style type="text/css">
		div.tooltip{
			position: absolute;
			border: 1px solid #000000;
			background-color: silver;
			color: #000000;
			width: 200px;
			height: auto;
		}
	</style>
	<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>  
	<script type="text/javascript">
	 
		var v_tooltip_timeout = 2; // Tooltip timeout in secs
		var v_content_url = '24831769-load.php';
		
		// Display a tooltip
		var showTooltip = function(o_ele){
			
			// Hide all other tooltips
			$('div.tooltip').hide();
			
			// Clone the tooltip and append it to the body element
			var o_tt = $('#tooltip-template').clone().attr('id', 'tt-' + o_ele.id);
			$('body').eq(0).append(o_tt);
			
			// Store the tooltip id for easy reference
			$(o_ele).attr('ttid', 'tt-' + o_ele.id);
			
			// Position the tooltip
			var a_pos = $(o_ele).position();
			var a_dim = [$(o_ele).width(), $(o_ele).height()];
			o_tt.css({"top": (a_pos.top + 10) + 'px', "left": (a_pos.left + 10) + 'px'});
			
			// Display tooltip
			o_tt.html('Loading...').show();
			
			// Get content from remote url
			o_tt.load(v_content_url, function(){
				
				// Close the tooltip v_tooltip_timeout seconds after content is loaded
				// Alternatives would be to show a close icon in the tooltip
				setTimeout(function(){
					o_tt.hide();
				}, v_tooltip_timeout * 1000);
				
			});
		
		} // showTooltip()
	 
		// When the document is loaded..
		$(document).ready(function(){
		
			// Add hover event handler to rows
			$('table tr.tooltip').hover(function(){showTooltip(this);});
		
		});
	 
	</script>
         
</head>
 
<body>
	<div id="tooltip-template" class="tooltip" style="display: none;">ADFASDFASFDGGAS</div>
    <table>
		<tbody>
			<tr id="row-1" class="tooltip">
				<td>Field 1</td>
				<td>Field 2</td>
			</tr>
			<tr id="row-2" class="tooltip">
				<td>Field 1</td>
				<td>Field 2</td>
			</tr>
			<tr id="row-3" class="tooltip">
				<td>Field 1</td>
				<td>Field 2</td>
			</tr>
		</tbody>
	</table>
</body>
</html>

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by: AncientFribPosted on 2009-10-22 at 11:53:16ID: 25637659

TheFoot,

How can I pass info to that v_content_url? I want to specify a URL with GET values in it, ie:

getinfo.php?info1=12345&info2=6789

The GET values will be determined based on which patch of data they are hovering over. Thanks!

by: TheFootPosted on 2009-10-22 at 13:08:56ID: 25638418

Hi AncientFrib,

Ok lets assume for arguments sake that the GET values are held within attributes of the <tr>, then the code below shows how to access that and send the GET request to the server:

<!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>
	<style type="text/css">
		div.tooltip{
			position: absolute;
			border: 1px solid #000000;
			background-color: silver;
			color: #000000;
			width: 200px;
			height: auto;
		}
	</style>
	<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>  
	<script type="text/javascript">
	 
		var v_tooltip_timeout = 2; // Tooltip timeout in secs
		var v_content_url = '24831769-load.php';
		
		// Display a tooltip
		var showTooltip = function(o_ele){
			
			// Hide all other tooltips
			$('div.tooltip').hide();
			
			// Clone the tooltip and append it to the body element
			var o_tt = $('#tooltip-template').clone().attr('id', 'tt-' + o_ele.id);
			$('body').eq(0).append(o_tt);
			
			// Store the tooltip id for easy reference
			$(o_ele).attr('ttid', 'tt-' + o_ele.id);
			
			// Position the tooltip
			var a_pos = $(o_ele).position();
			var a_dim = [$(o_ele).width(), $(o_ele).height()];
			o_tt.css({"top": (a_pos.top + 10) + 'px', "left": (a_pos.left + 10) + 'px'});
			
			// Display tooltip
			o_tt.html('Loading...').show();
			
			// Build url with GET paramstring
			var v_urlget = v_content_url + '?info1=' + $(o_ele).attr('info1') + 
				'&amp;info2=' +$(o_ele).attr('info2');
			// Get content from remote url
			o_tt.load(v_urlget, function(){
				
				// Close the tooltip v_tooltip_timeout seconds after content is loaded
				// Alternatives would be to show a close icon in the tooltip
				setTimeout(function(){
					o_tt.hide();
				}, v_tooltip_timeout * 1000);
				
			});
		
		} // showTooltip()
	 
		// When the document is loaded..
		$(document).ready(function(){
		
			// Add hover event handler to rows
			$('table tr.tooltip').hover(function(){showTooltip(this);});
		
		});
	 
	</script>
         
</head>
 
<body>
	<div id="tooltip-template" class="tooltip" style="display: none;">ADFASDFASFDGGAS</div>
    <table>
		<tbody>
			<tr id="row-1" class="tooltip" info1="aaaa" info2="bbbb">
				<td>Field 1</td>
				<td>Field 2</td>
			</tr>
			<tr id="row-2" class="tooltip" info1="cccc" info2="dddd">
				<td>Field 1</td>
				<td>Field 2</td>
			</tr>
			<tr id="row-3" class="tooltip" info1="eeee" info2="ffff">
				<td>Field 1</td>
				<td>Field 2</td>
			</tr>
		</tbody>
	</table>
</body>
</html>

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by: AncientFribPosted on 2009-10-23 at 05:02:46ID: 25643511

TheFoot,

Thank you, we are getting closer. It seems that everything is working properly but for some reason when by v_urlget is actually pulled up it is displaying as if it isn't receiving the GET variables. I did a document.write(v_urlget) and it is properly showing the GET variables and their values when I hover over the content. If I take that document.write output and paste it into my browser the info is shown correctly. However when I use your code, the v_content_url page behaves just like it would if it had received no values in the expected GET variables.

Thoughts?

by: AncientFribPosted on 2009-10-23 at 05:18:26ID: 25643611

In short, I haven't been able to confirm that the v_content_url is actually picking up the GET variables. I don't think it is...

by: TheFootPosted on 2009-10-23 at 10:10:26ID: 25646368

v_content_url is simply for holding the page URL. It is done this way so that you can easily change the actual page name. v_urlget is a concatentation of v_content_url and the querystring. v_urlget is sent to the server.

The value of v_content_url should not be changing.

TheFoot

by: AncientFribPosted on 2009-10-23 at 13:29:14ID: 25648254

Yeah - I gathered that. Let me explain this way:

-Right now it is not working, the results in the popup are the same results that would show if no GET values were sent in the URL string.

-If I do a document.write(v_urlget) then I get a URL with valid GET values. If I copy the document.write output and paste it into my browser the output of the script doesn't match the output of the popup. The popup shows results that indicate no GET values were sent. The output of the script (after pasting the document.write output into the browser) displays valid results.

I have not been able to verify that the GET values are being received by the script yet. It appears as if they aren't making it.

by: AncientFribPosted on 2009-10-23 at 14:39:49ID: 25648936

Nevermind, I think I got it. Something with the way we are redirecting. Thank you.

by: TheFootPosted on 2009-10-26 at 07:07:14ID: 25662334

Glad you got it sorted! Thanks for the points..

20120131-EE-VQP-002

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HTML/Javascript Hover Popup

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javascript

Miscellaneous Web Development

JavaScript

Hypertext Markup Language (HTML)

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