JavaScript Div Floating Plugin Introduction

As follows:

   
   

	  
    
    
 
     
 
      
The code is as follows
 
      
Copy Code
 
     
 
     
 
      
<div id= "wrapper" >
<div id= "Content" >

<p>this shows a sliding panel with no bottom boundary, and a bigger gap between the "top" viewport and the top of the Panel.</p>
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<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>
<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>
<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>
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<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>
<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>
<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>
<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>
<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>
<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>

<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>
<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>
<p>bacon ipsum dolor sit amet do T-Bone Laborum, ad ground round turkey tip. Veniam Aliqua jowl, Duis in T-Bone Sint Tongue. Pork Loin tenderloin AD, Veniam chicken meatloaf.</p>
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</div>

                
<div id= "sidebar" >
<p>hello, I ' m a sliding panel-unless the viewport is too small to contain me full glory, in which case I'll stay Right this so users can me.</p>
</div>
</div>
<script src= "<%: Url.content (" ~/scripts/portamento.js ")%>" ></script>
<script type= "Text/javascript" >
$ (' #sidebar '). Portamento ({gap:100}); Set a 100px gap rather than the default 10px
</script>
 
 
     
 
    
   
   

2.? CSS

The following:

  
  

	  
   
   
 
    
 
     
  code is as follows 
 
     
 copy code 
 
    
 
    
 
     
<style type=" Text/css "
 #wrapper {overflow:hidden; width:100%;} 
 #content {width:70%; margin-right:10px; float:left; min-height:1200px;} 
 #sidebar {width:200px; padding:10px; background: #f05b72; float:right; height:400px;} 
 
 #portamento_container {float:right; position:relative}/* Take the positioning of the sidebar, and become the STA RT point for the sidebar positioning */
 #portamento_container #sidebar {float:none; Position:absolute}/* No need to F Loat anymore, become absolutely positoned */
 #portamento_container #sidebar. Fixed {position:fixed;}/* If the panel is Sliding, it needs position:fixed */
 </style> 
 
    
 
   
  
  

3. Quoting Portamento.js

Portamento.js? as follows:

   
   

	  
    
    
 
     
 
      
The code is as follows
 
      
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/*!
*
* Portamento v1.1.1-2011-09-02
* Http://simianstudios.com/portamento
*
* Copyright Kris Noble except where noted.
*
* Dual-licensed under the GPLv3 and Apache 2.0 licenses:
* http://www.gnu.org/licenses/gpl-3.0.html
* http://www.apache.org/licenses/LICENSE-2.0
*
*/
/**
*
* Creates a sliding panel that respects the boundaries of
* A given wrapper, and also has sensible behaviour if the
* Viewport is too small to display the whole panel.
*
* Full documentation at Http://simianstudios.com/portamento
*
* ----
*
* Uses the Viewportoffset plugin by Ben Alman aka Cowboy:
* http://benalman.com/projects/jquery-misc-plugins/#viewportoffset
*
* Uses a portion of CFT by Juriy Zaytsev aka Kangax:
* http://kangax.github.com/cft/#IS_POSITION_FIXED_SUPPORTED
*
* Uses Code by Matthew Eernisse:
* Http://www.fleegix.org/articles/2006-05-30-getting-the-scrollbar-width-in-pixels
*
* Builds on work by Remy Sharp:
* http://jqueryfordesigners.com/fixed-floating-elements/
*
*/
(function ($) {

$.fn.portamento = function (options) {

We ll use the window and document objects a lot
Saving them as variables now saves a lot of function calls
var Thiswindow = $ (window);
var thisdocument = $ (document);

/**
* Avoid namespace clashes by kris-included.
*
* JQuery viewportoffset-v0.3-2/3/2010
* http://benalman.com/projects/jquery-misc-plugins/
*
* Copyright (c) "Cowboy" Ben Alman
* Dual licensed under the MIT and GPL licenses.
* http://benalman.com/about/license/
*/
$.fn.viewportoffset = function () {
var win = $ (window);
var offset = $ (this). offset ();

return {
Left:offset.left-win.scrollleft (),
Top:offset.top-win.scrolltop ()
};
};

/**
*
* A test to the IF position:fixed is supported.
* Taken from CFT by kangax-http://kangax.github.com/cft/#IS_POSITION_FIXED_SUPPORTED
* Included as to avoid namespace clashes.
*
*/
function positionfixedsupported () {
var container = document.body;
if (document.createelement && container && container.appendchild && container.removechild) {
var el = document.createelement ("div");
if (!el.getboundingclientrect) {
return null;
}
el.innerhtml = "X";
El.style.cssText = "position:fixed;top:100px;";
Container.appendchild (EL);
var originalheight = container.style.height, originalscrolltop = container.scrolltop;
Container.style.height = "3000px";
Container.scrolltop = 500;
var elementtop = El.getboundingclientrect (). Top;
Container.style.height = OriginalHeight;
var issupported = Elementtop = 100;
Container.removechild (EL);
Container.scrolltop = Originalscrolltop;
return issupported;
}
return null;
}

/**
*
* Get the scrollbar width by Matthew Eernisse.
* Http://www.fleegix.org/articles/2006-05-30-getting-the-scrollbar-width-in-pixels
* Included as to avoid namespace clashes.
*
*/
function Getscrollerwidth () {
var scr = null;
var inn = null;
var wnoscroll = 0;
var wscroll = 0;

Outer scrolling Div
SCR = document.createelement (' div ');
scr.style.position = ' absolute ';
Scr.style.top = ' -1000px ';
Scr.style.left = ' -1000px ';
Scr.style.width = ' 100px ';
Scr.style.height = ' 50px ';
Start with no scrollbar
Scr.style.overflow = ' hidden ';

Inner Content Div
inn = document.createelement (' div ');
Inn.style.width = ' 100% ';
Inn.style.height = ' 200px ';

Put the inner div in the scrolling div
scr.appendchild (INN);
Append the scrolling div to the doc
Document.body.appendChild (SCR);

Width of the inner div sans scrollbar
Wnoscroll = Inn.offsetwidth;
ADD the scrollbar
Scr.style.overflow = ' auto ';
Width of the inner div width scrollbar
Wscroll = Inn.offsetwidth;

Remove the scrolling div from the doc
Document.body.removeChild (Document.body.lastChild);

Pixel width of the scroller
return (Wnoscroll-wscroll);
}

// ---------------------------------------------------------------------------------------------------

Get the definitive options
var opts = $.extend ({}, $.fn.portamento.defaults, options);

Setup the VARs accordingly
var panel = this;
var wrapper = Opts.wrapper;
var gap = Opts.gap;
var disableworkaround = Opts.disableworkaround;
var fullycapablebrowser = positionfixedsupported ();

if (panel.length!= 1) {
Die gracefully If the user has tried to pass multiple elements
(multiple element support is on the TODO list!) or no elements ...
return this;
}

if (!fullycapablebrowser && disableworkaround) {
Just stop here, as the dev doesn ' t want to use the workaround
return this;
}

Wrap the floating panel in a Div, then set a sensible min-height and width
Panel.wrap (' <div id= ' portamento_container '/> ');
var Float_container = $ (' #portamento_container ');
Float_container.css ({
' Min-height ': panel.outerheight (),
' Width ': panel.outerwidth ()
});

Calculate the upper scrolling boundary
var paneloffset = Panel.offset (). Top;
var panelmargin = parsefloat (panel.css (' margintop '). Replace (/auto/, 0));
var realpaneloffset = Paneloffset-panelmargin;
var topscrollboundary = Realpaneloffset-gap;

A couple of numbers to account for margins and padding on the relevant elements
var wrapperpaddingfix = parsefloat (wrapper.css (' paddingtop '). Replace (/auto/, 0));
var containermarginfix = parsefloat (float_container.css (' margintop '). Replace (/auto/, 0));

Do some work to fix IE misreporting the document width
var iefix = 0;

var Ismsie =/* @cc_on!@*/0;

if (Ismsie) {
Iefix = Getscrollerwidth () + 4;
}

// ---------------------------------------------------------------------------------------------------

Thiswindow.bind ("Scroll.portamento", function () {

if (Thiswindow.height () > Panel.outerheight () && thiswindow.width () >= (Thisdocument.width ()-Iefix)) {// Don ' t scroll if the window isn ' t big enough

var y = thisdocument.scrolltop (); Current scroll position of the document

if (y >= (topscrollboundary)) {//If we ' re at or past the upper scrolling boundary
if ((Panel.innerheight ()-Wrapper.viewportoffset (). Top)-Wrapperpaddingfix + Gap >= wrapper.height ()) {//If we ' re a T or past the bottom scrolling boundary
if (Panel.hasclass (' fixed ') | | thiswindow.height () >= panel.outerheight ()) {//Check that there ' s work to do
Panel.removeclass (' fixed ');
Panel.css (' Top ', (Wrapper.height ()-panel.innerheight ()) + ' px ');
}
else {//If we ' re somewhere in the middle
Panel.addclass (' fixed ');

if (fullycapablebrowser) {//supports position:fixed
Panel.css (' top ', Gap + ' px '); To keep the gap
} else {
Panel.clearqueue ();
Panel.css (' position ', ' absolute '). Animate ({top: (0-float_container.viewportoffset (). Top + Gap)});
}
}
} else {
If we ' re above the top scroll boundary
Panel.removeclass (' fixed ');
Panel.css (' top ', ' 0 '); Remove any added gap
}
} else {
Panel.removeclass (' fixed ');
}
});

// ---------------------------------------------------------------------------------------------------

Thiswindow.bind ("Resize.portamento", function () {
Stop users getting undesirable behaviour if they resize the window too small
if (Thiswindow.height () <= panel.outerheight () | | thiswindow.width () < Thisdocument.width ()) {
if (Panel.hasclass (' fixed ')) {
Panel.removeclass (' fixed ');
Panel.css (' top ', ' 0 ');
}
} else {
Thiswindow.trigger (' Scroll.portamento '); Trigger the scroll event to place the panel correctly
}
});

// ---------------------------------------------------------------------------------------------------

Thiswindow.bind ("Orientationchange.portamento", function () {
If device orientation changes, trigger the Resize event
Thiswindow.trigger (' Resize.portamento ');
});

// ---------------------------------------------------------------------------------------------------

Trigger the scroll event immediately so, the panel is positioned correctly if the page loads anywhere other than th E top.
Thiswindow.trigger (' Scroll.portamento ');

Return this to maintain chainability
return this;
};

Set some sensible defaults
$.fn.portamento.defaults = {
' Wrapper ': $ (' body '),//The element that would act as the sliding panel ' s boundaries
' Gap ': the gap (in pixels) left between the "top" of the viewport and the top of the panel
' Disableworkaround ': false//Option to disable the workaround for Not-quite capable browsers
};

}) (JQuery);
 
 
     
 
    
   
   

4. In JS?

code is as follows	copy code
<script type= "Text/javascript" > & nbsp;           $ (' #sidebar '). Portamento ({gap:100}); Set a 100px gap rather than the default 10px         </script>