Develop Reference

Prevent block from touching the containers borders

I have this little block that I move around using javascript code. It works all good except if I keep moving it, it can easily get out of the box where it is supposed to be.
Can I prevent this somehow? So no matter how far I want to move it, it will stay stuck inside of the container/box ?
Here's my snippet code:
/// store key codes and currently pressed ones
var keys = {};
keys.UP = 38;
keys.LEFT = 37;
keys.RIGHT = 39;
keys.DOWN = 40;
/// store reference to character's position and element
var character = {
x: 100,
y: 100,
speedMultiplier: 2,
element: document.getElementById("character")
};
var is_colliding = function(div1, div2) {
var d1_height = div1.offsetHeight;
var d1_width = div1.offsetWidth;
var d1_distance_from_top = div1.offsetTop + d1_height;
var d1_distance_from_left = div1.offsetLeft + d1_width;
var d2_height = div2.offsetHeight;
var d2_width = div2.offsetWidth;
var d2_distance_from_top = div2.offsetTop + d2_height;
var d2_distance_from_left = div2.offsetLeft + d2_width;
var not_colliding =
d1_distance_from_top <= div2.offsetTop ||
div1.offsetTop >= d2_distance_from_top ||
d1_distance_from_left <= div2.offsetTop ||
div1.offsetLeft >= d2_distance_from_left;
return !not_colliding;
};
/// key detection (better to use addEventListener, but this will do)
document.body.onkeyup =
document.body.onkeydown = function(e){
if (e.preventDefault) {
e.preventDefault();
}
else {
e.returnValue = false;
}
var kc = e.keyCode || e.which;
keys[kc] = e.type == 'keydown';
};
/// character movement update
var moveCharacter = function(dx, dy){
character.x += (dx||0) * character.speedMultiplier;
character.y += (dy||0) * character.speedMultiplier;
character.element.style.left = character.x + 'px';
character.element.style.top = character.y + 'px';
};
/// character control
var detectCharacterMovement = function(){
if ( keys[keys.LEFT] ) {
moveCharacter(-5, 0);
}
if ( keys[keys.RIGHT] ) {
moveCharacter(5, 0);
}
if ( keys[keys.UP] ) {
moveCharacter(0, -5);
}
if ( keys[keys.DOWN] ) {
moveCharacter(0, 5);
}
};
/// update current position on screen
moveCharacter();
/// game loop
setInterval(function(){
detectCharacterMovement();
}, 1000/24);
body{
display: flex;
justify-content: center;
align-items: center;
}
#character {
position: absolute;
width: 42px;
height: 42px;
background: red;
z-index:99;
}
#container{
width: 400px;
height: 400px;
background: transparent;
border:5px solid rgb(0, 0, 0);
position: relative;
overflow: hidden;
}
<div id="container">
<div id="character"></div>
</div>
PS: You can move the box using keyboard arrows.

Get the container width and height into variable and set a condition on your move
var moveCharacter = function(dx, dy){
let div_width = document.getElementById('container').clientWidth;
let div_height = document.getElementById('container').clientHeight;
if((div_width - character.x) < 50 ){ // 50 = width of character and padding
character.x = div_width - 50;
}
if(character.x < 10){ // Padding
character.x = 11;
}
if((div_height - character.y) < 50 ){
character.y = div_height - 50;
}
if(character.y < 10){
character.y = 11;
}

How to get postition highlighted text in textarea (coords) angular?

I want to get something like this, in textarea. I cant change textarea to contentaditable div. How do I get the position of the selected text? I need this to show this pop-up from above

You should be able to easily convert this into angular code.
This is the basics of what you need to do, its not thoroughly tested but it bare minimum works.
const textarea = document.getElementById('text')
const result = document.getElementById('selected')
const tooltip = document.getElementById('tooltip')
const cols = document.getElementById('text').cols;
const width = document.getElementById('text').clientWidth;
const height = window.getComputedStyle(textarea).lineHeight;
textarea.onclick = function getSelection() {
const pos = {
top: textarea.offsetTop,
left: textarea.offsetLeft,
};
result.textContent = `${textarea.selectionStart}, ${textarea.selectionEnd}`;
let selection
if (textarea.selectionStart) {
selection = textarea.selectionStart;
} else if (document.selection) {
textarea.focus();
const r = document.selection.createRange();
if (r == null) {
selection = 0;
}
let re = textarea.createTextRange();
let rc = re.duplicate();
re.moveToBookmark(r.getBookmark());
rc.setEndPoint('EndToStart', re);
selection = rc.text.length;
} else {
selection = 0
}
const row = Math.floor((selection - 1) / cols);
const col = (selection - (row * cols));
const x = Math.floor((col * (width / cols)));
const y = (parseInt(height) * row);
tooltip.innerHTML = "<b>row: " + row + "<br>columns" + col + "<br>width: " + width + "</b>";
tooltip.style.top = `${pos.top+y}px`;
tooltip.style.left = `${pos.left+x+10}px`;
}
textarea {
height: 80px;
line-height: 12px;
overflow-y: scroll;
display: block;
}
#tooltip {
position: absolute;
background:red;
color: white;
}
<textarea id="text">Lopsum</textarea>
<span id="tooltip"></span>
<span id="selected"></span>

The only way I imagine is create a duplicate of the text area (very similar to this SO, (the Owen Kelvin's response) about highligth words in a text area
As we only need the position, we can split the "texarea" and the "background". Futhermore, using the Yurzui response in this another SO we can control when resize the textarea
We can imagine an .html like
<div class="container">
<div
#backdrop
class="backdrop"
[style.width.px]="textWidth"
[style.height.px]="textHeight"
>
<div
class="highlights"
[innerHTML]="sanitizer.bypassSecurityTrustHtml(highlightedText)"
></div>
</div>
</div>
<textarea
#textarea
spellcheck="false"
(resize)="rect = null;"
(select)="applyHighlights(textarea.value)"
(mousedown)="mouseDown()"
(blur)="rect = null"
[ngModel]="textValue"
(ngModelChange)="textValue = $event; applyHighlights(textarea.value)"
(scroll)="handleScroll(); applyHighlights(textarea.value)"
></textarea>
<div
class="tooltip"
*ngIf="rect"
[style.top.px]="rect.y"
[style.left.px]="rect.x"
></div>
See that the "text" is hidden because we has a div container like
.container {
overflow:hidden;
width:0;
height:0;
}
And we make that the dimensions of "text" are condition by the two variables "textWidth" and "textHeight"
The code is
ngOnInit() {
this.resize();
}
resize() {
const event = {
width: this.$textarea.nativeElement.getBoundingClientRect().width,
height: this.$textarea.nativeElement.getBoundingClientRect().height,
};
this.textWidth = event.width;
this.textHeight = event.height;
}
mouseDown() {
setTimeout(() => {
const start = this.$textarea.nativeElement.selectionStart;
const end = this.$textarea.nativeElement.selectionEnd;
if (start == end) this.rect = null;
});
}
applyHighlights(text: string) {
if (text) {
let start = this.$textarea.nativeElement.selectionStart;
let end = this.$textarea.nativeElement.selectionEnd;
if (start == end) this.highlightedText = text;
else {
const selected = text.substr(start, end - start);
this.toolTipText=this.getTooltipText(selected)
this.highlightedText =
text.substr(0, start) +
"<span id='mark'>" +
selected +
'</span>' +
text.substr(end);
this.resize();
setTimeout(() => {
const recArea = this.$textarea.nativeElement.getBoundingClientRect();
const recText = this.$backdrop.nativeElement.getBoundingClientRect();
const rect = document.getElementById('mark').getBoundingClientRect();
rect.y += window.scrollY;
rect.x+=rect.width/2
this.rect = rect.y - window.scrollY < recArea.y ? null : rect;
});
}
}
}
handleScroll() {
var scrollTop = this.$textarea.nativeElement.scrollTop;
this.$backdrop.nativeElement.scrollTop = scrollTop;
var scrollLeft = this.$textarea.nativeElement.scrollLeft;
this.$backdrop.nativeElement.scrollLeft = scrollLeft;
}
And in the stackblitz I put in a custom form component (the reason is that Owen make this work for me

Javascript - Run once per session

I would like the code below to execute only once when the website first loads.
I tried it with cookies and sessionstorage. But I have never found the right solution. Maybe it was wrong. Does anyone have an idea how I can solve that with session storage? I've never done anything with it. maybe something like this? :
if (!sessionStorage.alreadyClicked) {
$('#my_div');
sessionStorage.alreadyClicked = 1;
}
Any help will be appreciated. Thank You.
var my_div;
topIgnore = 100; // (in pixel units) used for function ignoreTop
window.onload = function() {
my_div = document.getElementById('my_div');
var my_div_style = window.getComputedStyle(my_div);
var width_div = parseInt(my_div_style.width, 10); // remove 'px' from string
var height_div = parseInt(my_div_style.height, 10);
// make sure the property exists, else you can get a NaN
my_div.style.left = 0;
my_div.style.top = 0;
// event
window.onmousemove = function(e) {
// my_div.innerHTML = e.pageX +' - '+ (leftBorder + width_div) +' - '+ width_div;
cursorIsInsideDiv(e);
}
// TO DO: feel free to make similar functions for left/right/bottom
// removes the first 100px
function ignoreTop(top) {
if(top < topIgnore) {
return topIgnore;
}
return top;
}
function cursorIsInsideDiv(e) {
var leftBorder = parseInt(my_div.style.left, 10); // remove 'px' from string
var topBorder = parseInt(my_div.style.top, 10);
// move left
if( e.pageX < leftBorder ) {
my_div.style.left = e.pageX + 'px';
}
// move right
else if( e.pageX > (leftBorder + width_div)) {
my_div.style.left = (e.pageX - width_div ) + 'px';
}
// move up
if( e.pageY < topBorder ) {
var top = e.pageY ;
top = ignoreTop(top);
my_div.style.top = top + 'px';
}
// move down
else if( e.pageY > (topBorder + height_div)) {
my_div.style.top = (e.pageY - height_div ) + 'px';
}
}
}
#my_div {
width: 100%;
height: 100%;
padding: 0;
margin: 0;
}
#my_div {
width: 300px;
height: 150px;
background: #ff0000;
position: absolute;
}
<div id="my_div">
<h2>Newsletter</h2>
Name: <input type="text" name="fullname"><br>
Email: <input type="text" name="email"><br>
</div>

Use JS to set a cookie:
document.cookie = "alreadyClicked=1; expires=Fri, 13 Jan 2017 20:00:00 UTC";
Then, you can check if it exists by defining a function to find the value (from http://www.w3schools.com/js/js_cookies.asp):
function getCookie(cname) {
var name = cname + "=";
var decodedCookie = decodeURIComponent(document.cookie);
var ca = decodedCookie.split(';');
for(var i = 0; i <ca.length; i++) {
var c = ca[i];
while (c.charAt(0) == ' ') {
c = c.substring(1);
}
if (c.indexOf(name) == 0) {
return c.substring(name.length, c.length);
}
}
return "";
}
if (getCookie("alreadyClicked") == "1") {
// do stuff if already clicked
} else {
// prompt for click?
}

I just inserted the code between. It worked. Corrected if that is wrong.
if (!sessionStorage.alreadyClicked) {
$('#my_div');
sessionStorage.alreadyClicked = 1;
}

How to define a variable of multiple variables in JavaScript

I would like to know how can I define a bigger variable for a set of variables that I have in javascript: showFootnotesPanel();, showReferencesPanel();, showImagesPanel();, showInformationPanel();.
Would it be something like this?
function showPanel() {
var x = [showFootnotesPanel();showReferencesPanel();showImagesPanel();showInformationPanel();]
}
Update:
I have this function that used to open a side panel on the right side and color the content:
var els = document.getElementsByClassName('change-color'),
target = document.getElementsByClassName('resources'),
changeColor = function(a) {
elements = document.getElementsByClassName("note");
for (var i = 0; i < elements.length; i++) {
console.log(elements[i])
elements[i].style.backgroundColor = "";
}
target = a.getAttribute('href');
element = document.querySelector('[data-id="' + target.substring(1, target.length) + '"]');
element.style.backgroundColor = a.getAttribute('data-color');
};
for (var i = els.length - 1; i >= 0; --i) {
els[i].onclick = function() {
showFootnotesPanel();
changeColor(this);
}
Now I have 4 side panels that need to respond to the same script, and I thought that by defining something like showPanel() is showFootnotesPanel() or showReferencesPanel() or showImagesPanel() or showInformationPanel() I might simplify things, so the last line of the script would be this instead just:
els[i].onclick = function(){showPanel();changeColor(this);}
Update 2:
Or is it possible to do this with the logical operator OR?
els[i].onclick = function(){showFootnotesPanel(); || showReferencesPanel(); || showImagesPanel(); || showInformationPanel();changeColor(this);}
Update 3:
This is the new script that I am using to hide and show the panels:
function showPanel(myPanel) {
var elem = document.getElementById(myPanel);
if (elem.classList) {
console.log("classList supported");
elem.classList.toggle("show");
} else {
var classes = elem.className;
if (classes.indexOf("show") >= 0) {
elem.className = classes.replace("show", "");
} else {
elem.className = classes + " show";
}
console.log(elem.className);
}
}
function hideOthers(one, two, three, four) {
if (one > "") {
var elem1 = document.getElementById(one);
var classes = elem1.className;
elem1.className = classes.replace("show", "");
}
if (two > "") {
var elem2 = document.getElementById(two);
var classes = elem2.className;
elem2.className = classes.replace("show", "");
}
if (three > "") {
var elem3 = document.getElementById(three);
var classes = elem3.className;
elem3.className = classes.replace("show", "");
}
if (four > "") {
var elem4 = document.getElementById(four);
var classes = elem4.className;
elem4.className = classes.replace("show", "");
}
return;
}
And this is the script that calls the panels and highlights the text on them:
var els = document.getElementsByClassName('change-color'),
target = document.getElementsByClassName('resources'),
changeColor = function(a) {
elements = document.getElementsByClassName("note");
for (var i = 0; i < elements.length; i++) {
console.log(elements[i])
elements[i].style.backgroundColor = "";
}
target = a.getAttribute('href');
element = document.querySelector('[data-id="' + target.substring(1, target.length) + '"]');
element.style.backgroundColor = a.getAttribute('data-color');
};
for (var i = els.length - 1; i >= 0; --i) {
els[i].onclick = function() {
hideOthers('footnotes-section', 'references-section', 'images-section', 'information-section');
showPanel('references-section');
changeColor(this);
}
}
Thank you!

Updated with a final solution.
In javascript you can declare variables by this way:
var text = ""; // String variable.
var number = 0; //Numeric variable.
var boolValue = true; //Boolean variable.
var arrayValue = []; // Array variable. This array can contain objects {}.
var obj = {}; // Object variable.
Check this version of your code.
// var text = ""; => String variable.
// var number = 0; => Numeric variable.
// var boolValue = true; => Boolean variable.
// var arrayValue = []; => Array variable. This array can contain objects {}.
// var obj = {}; => Object variable.
// This section of code is only to explain the first question.
(function() {
function showFootnotesPanel() {
return 10; // Random value.
}
function showReferencesPanel() {
return 30; // Random value.
}
function showImagesPanel() {
return 50; // Random value.
}
function showInformationPanel() {
return 90; // Random value.
}
function showPanel() {
return [
showFootnotesPanel(), // Index = 0
showReferencesPanel(), // Index = 1
showImagesPanel(), // Index = 2
showInformationPanel() // Index = 3
];
}
var bigVariable = showPanel(); // bigVariable is array of numeric values.
// Using logical operator to check status of variable about this demo code.
if (bigVariable[0] === 10 || bigVariable[1] === 30) {
console.log("Hey, with these values can show the FootnotesPanel and ReferencesPanel.");
} else {
console.log("With the current values can't show anything...");
}
console.log(bigVariable);
})();
// https://jsfiddle.net/dannyjhonston/t5e8g22b/
// This section of code attempts to answer the question of this post.
(function() {
// This function can be executed when the page is loaded.
function showPanel(panels) {
var panel, panelVisible = "";
var selPanels = document.getElementById("selPanels");
// In panels array...
for (var i = 0; i < panels.length; i++) {
// panels[0] = "ReferencesPanel";
panel = document.getElementById(panels[i]); // Get in the DOM tag context of the panel to set in the variable "panel".
panelVisible = panel.getAttribute("data-visible"); // HTML5 data attribute.
if (panelVisible == "true") {
panel.setAttribute("class", "show");
} else {
panel.setAttribute("class", "hide");
}
}
}
// This function is for set panel visibilty.
function setPanel(panelId, status) {
panel = document.getElementById(panelId);
panel.setAttribute("data-visible", status);
// Calling the showPanel function to check in the DOM.
showPanel(["ReferencesPanel", "InformationPanel", "ImagesPanel", "FootnotesPanel"]);
}
// Binding the change event to the select tag.
selPanels.addEventListener("change", function() {
// Executes setPanel function with panelId and true to update the data-visible attribute in the DOM.
setPanel(this.options[this.selectedIndex].value, "true");
});
// Executes showPanel function with array argument with panels Id. You need to specify every panel that want to handle.
showPanel(["ReferencesPanel", "InformationPanel", "ImagesPanel", "FootnotesPanel"]);
})();
#global {
border: solid 1px #6291AD;
}
.tools {
background-image: linear-gradient(#FFFFFF, #8999CE);
}
#global div[data-visible] {
height: 80px;
padding: 5px 0;
}
#global div p {
padding: 10px;
}
#ReferencesPanel {
background-image: linear-gradient(#FFFFFF, #FD9A9A);
float: left;
width: 20%;
}
#InformationPanel {
background-image: linear-gradient(#FFFFFF, #A1C7F1);
float: left;
width: 80%;
}
#ImagesPanel {
background-image: linear-gradient(#C6E9FB, #FFF);
width: 100%;
}
#FootnotesPanel {
background-image: linear-gradient(#C6E999, #FFF);
width: 100%;
}
.clear {
clear: both;
}
.show {
display: block;
}
.hide {
display: none;
}
<div id="global">
<div class="tools">Show Panel:
<br />
<!-- Demo -->
<select id="selPanels">
<option value="">[SELECT]</option>
<option value="ReferencesPanel">ReferencesPanel</option>
<option value="InformationPanel">InformationPanel</option>
<option value="ImagesPanel">ImagesPanel</option>
<option value="FootnotesPanel">FootnotesPanel</option>
</select>
</div>
<!-- You need to set data-visible attribute with true or false to show or hide a panel. -->
<div id="ReferencesPanel" data-visible="false">
<p>References Panel</p>
</div>
<div id="InformationPanel" data-visible="false">
<p>Information Panel</p>
</div>
<div class="clear"></div>
<div id="ImagesPanel" data-visible="false">
<p>Images Panel</p>
</div>
<div id="FootnotesPanel" data-visible="false">
<p>Foot notes Panel</p>
</div>
</div>

I dont understand your question exactly, but if you want to define a variable that contains other variables then you can use an object.
e.g:
var footNotesPanel = true;
var referencesPanel = true;
var imagesPanel = true;
var showPanels = {
footNotesPanel: footNotesPanel,
referencesPanel: referencesPanel,
imagesPanel: imagesPanel
}
/*
Option 2 - for showing/hiding side panels
1 ) create all your panels as they would appear, with all the data, but hide them with display:none;
2 ) call show panel function to show a panel.
*/
var showPanel(panel_id) {
var panel_element = $("#" + panel_id); /*panel that you want to show ( is hidden atm but somewhere on the page */
if (!panel_element.length) {
return false; //no panel with this id currently on page
} else {
//check the panel id and do some custom editing if needed, eg.
if (panel_id == "main_side_panel") {
//add some additional classes to body element etc
}
panel_element.show();
//Or Another option that you probably are looking for is below
if (panel_id == "footnotes_panel") {
showFootnotesPanel();
} else if (panel_id == "images_panel") {
showImagesPanel();
}
}
}
// And use it like this:
<div id="footnotes_panel" onclick="showPanel('footnotes_panel')"></div>
// Or simply get the element id from `event.target` and use `showPanel()` without arguments.

Need Help Getting Floating Social Bar Working

My client is using the "Digg-Digg" plugin on their blog, and has asked me to implement the same thing on the rest of the site. I have copied the html code, the css file & the JS file, updated the links and variables, yet it still won't appear on the page. Can anyone help me out??? Thank you in advance.
Here is the html code:
<a id="dd_end"></a>
<div class='dd_outer'>
<div class='dd_inner'>
<div id='dd_ajax_float' style="position: absolute; top: 308px; left: -95px; display: block;">
<div class='dd_button_v'>
<a href="http://twitter.com/share" class="twitter-share-button" data-url="http://www.scottera.com/" data-count="vertical" data-text="Arch Kit" data-via="archkit" ></a><script type="text/javascript" src="//platform.twitter.com/widgets.js"></script></div><div style='clear:left'></div><div class='dd_button_v'><script src="//connect.facebook.net/en_US/all.js#xfbml=1"></script><fb:like href="http://www.scottera.com" send="false" show_faces="false" layout="box_count" width="50" ></fb:like></div><div style='clear:left'></div><div class='dd_button_v'><script type='text/javascript' src='https://apis.google.com/js/plusone.js'></script><g:plusone size='tall' href='http://www.scottera.com/'></g:plusone></div><div style='clear:left'></div></div></div></div><script type="text/javascript">var dd_offset_from_content = 40;var dd_top_offset_from_content = 0;var dd_override_start_anchor_id = "";var dd_override_top_offset = "";</script><script type="text/javascript" src="include/digg-digg/js/diggdigg-floating-bar.js?ver=5.3.6"></script>
And here is the CSS for the main sections:
.dd_outer {
width:100%;
height:0;
position:absolute;
top:0;
left:0;
z-index:9999
}
.dd_inner {
margin:0 auto;
position:relative
}
EDIT: Adding JS code:
var dd_top = 0;
var dd_left = 0;
jQuery(document).ready(function(){
var $floating_bar = jQuery('#dd_ajax_float');
var dd_anchorId = 'dd_start';
if ( typeof dd_override_start_anchor_id !== 'undefined' && dd_override_start_anchor_id.length > 0 ) {
dd_anchorId = dd_override_start_anchor_id;
}
var $dd_start = jQuery( '#' + dd_anchorId );
var $dd_end = jQuery('#dd_end');
var $dd_outer = jQuery('.dd_outer');
// first, move the floating bar out of the content to avoid position: relative issues
$dd_outer.appendTo('#wrapper');
if ( typeof dd_override_top_offset !== 'undefined' && dd_override_top_offset.length > 0 ) {
dd_top_offset_from_content = parseInt( dd_override_top_offset );
}
dd_top = parseInt($dd_start.offset().top) + dd_top_offset_from_content;
if($dd_end.length){
dd_end = parseInt($dd_end.offset().top);
}
dd_left = -(dd_offset_from_content + 55);
dd_adjust_inner_width();
dd_position_floating_bar(dd_top, dd_left);
$floating_bar.fadeIn('slow');
if($floating_bar.length > 0){
var pullX = $floating_bar.css('margin-left');
jQuery(window).scroll(function () {
var scroll_from_top = jQuery(window).scrollTop() + 30;
var is_fixed = $dd_outer.css('position') == 'fixed';
if($dd_end.length){
var dd_ajax_float_bottom = dd_end - ($floating_bar.height() + 30);
}
if($floating_bar.length > 0)
{
if(scroll_from_top > dd_ajax_float_bottom && $dd_end.length){
dd_position_floating_bar(dd_ajax_float_bottom, dd_left);
$dd_outer.css('position', 'absolute');
}
else if ( scroll_from_top > dd_top && !is_fixed )
{
dd_position_floating_bar(30, dd_left);
$dd_outer.css('position', 'fixed');
}
else if ( scroll_from_top < dd_top && is_fixed )
{
dd_position_floating_bar(dd_top, dd_left);
$dd_outer.css('position', 'absolute');
}
}
});
}
// Load Linked In Sharers (Resolves issue with position on page)
if(jQuery('.dd-linkedin-share').length){
jQuery('.dd-linkedin-share div').each(function(index) {
var $linkedinSharer = jQuery(this);
var linkedinShareURL = $linkedinSharer.attr('data-url');
var linkedinShareCounter = $linkedinSharer.attr('data-counter');
var linkedinShareCode = jQuery('<script>').attr('type', 'unparsed-IN/Share').attr('data-url', linkedinShareURL).attr('data-counter', linkedinShareCounter);
$linkedinSharer.html(linkedinShareCode);
IN.Event.on(IN, "systemReady", function() {
$linkedinSharer.children('script').first().attr('type', 'IN/Share');
IN.parse();
});
});
}
});
jQuery(window).resize(function() {
dd_adjust_inner_width();
});
var dd_is_hidden = false;
var dd_resize_timer;
function dd_adjust_inner_width() {
var $dd_inner = jQuery('.dd_inner');
var $dd_floating_bar = jQuery('#dd_ajax_float')
var width = parseInt(jQuery(window).width() - (jQuery('#dd_start').offset().left * 2));
$dd_inner.width(width);
var dd_should_be_hidden = (((jQuery(window).width() - width)/2) < -dd_left);
var dd_is_hidden = $dd_floating_bar.is(':hidden');
if(dd_should_be_hidden && !dd_is_hidden)
{
clearTimeout(dd_resize_timer);
dd_resize_timer = setTimeout(function(){ jQuery('#dd_ajax_float').fadeOut(); }, -dd_left);
}
else if(!dd_should_be_hidden && dd_is_hidden)
{
clearTimeout(dd_resize_timer);
dd_resize_timer = setTimeout(function(){ jQuery('#dd_ajax_float').fadeIn(); }, -dd_left);
}
}
function dd_position_floating_bar(top, left, position) {
var $floating_bar = jQuery('#dd_ajax_float');
if(top == undefined) top = 0 + dd_top_offset_from_content;;
if(left == undefined) left = 0;
if(position == undefined) position = 'absolute';
$floating_bar.css({
position: position,
top: top + 'px',
left: left + 'px'
});
}

You can use the floating social bar plugin
http://wordpress.org/plugins/floating-social-bar/ (it is my plugin)
There is an option to manually add the floating bar on all WordPress pages if you want. Just look at the code on the FAQ page.