In my UI framework, I have an event handler - just like many frameworks do. My handler is a static object, and contains methods to take care of things like mouse events, etc. However, upon adding a method to handle onfocus today, I ran into a very odd problem in Firefox. I've put together an example page that generates the error:
View 14 RepliesI had a original function in this format/syntax:
Code:
GlobalFunction(){
InnerFunction(){
// ... long definition here ...
[Code]....
Other words the innerFunction behaves like it is global and has not shared variables with myClosure!
I'm getting the following error: attempt to run compile-and-go script on a cleared scope [Break On This Error] if (xmlhttp.readyState==4 && xmlhttp.status==200)
when i try to run the following code in mozilla firefox:
gethint.html
<script language="javascript" type="text/javascript">
function showHint(str)
{
[Code].....
Using FF4 I keep getting the above mentioned message. hats is this supposed to mean???The scripts seem to work correctly, nevertheless.
View 1 Replies View RelatedI'm using the code below for the "launch page" to open a JS window and know when it has been closed, and than execute some other code that should be run after the pop-up closes.
javascript Code:
This works, and does exactly what I want. Do any of you JS experts see any reason for concern? Anything that makes it suboptimal?
I would like to set a flag using a closure so that the internal value of that closure is preserved for me to retrieve it when different events occur. It is one of those times where lack of block scope will stop me from doing what I want to do unless I can set a boolean and preserve its value in a function.
View 9 Replies View RelatedI am currently strungling with the fact that I want to control the
browser closure. In fact, I have a webbased application in which I use
a wizard. Ones the wizard starts, a lock is set on specific objects in
the db. On all pages of the wizard, the user get the possibility to
exit the wizard by clicking on a custom "Exit" button. That way, I know
that the user has left the wizard and that way I can unlock the locked
objects in the db again.
So far, so good. But users are used to close browser windows by
clicking on the "X" in the titlebar. If they close a window that way,
the locks aren't unset and no other user may start the wizard again. If
I should know that he had clicked on the "X", I could unlock the
objects.
I have searched a lot on the net but all results aren't sufficient for
me.
Some solutions which don't work:
1) onunload event: =Also called when the window is refreshed or
forwarded.
2) "titlebar = no" property while opening the first page of the wizard,
is not working (the titlebar is still enabled). And even then, the
users can close the window by clicking CRL-F4. This key combination
isn't disabled by the "hotkeys = no" property.
Note: if the client's pc crashes or if the user kills the wizard
process via the task manager (exceptional cases), they have to call
maintenance to reset the locks. This is a requirement, defined by
bussiness.
I'm not sure why this: Code: console.log(instance2.getAnotherKey()()); returns Object { a = "a" } when I clearly reassigned the value of the a property. Reassigning the property caused change in this line:
Code:
ref.a = 'abc'; console.log(inst.getZ()); //Object {a="abc"} So why does it work when you call an instance method in the constructor (e.g. this.getZ()) but doesn't work when you call the instance method in prototype?
[Code]...
when a user clicks on a link, a new window opens. what I want to do is that if the user closes that popup but click on that same link again, the window should open..
Code:
<script language="javascript">
var winOpen = "";
[code]....
I'm using the apycom jquery menu style 1 (dim grey)URL..It's a great looking menu but does anyone know how to 'delay' the dropdown menu closure when your mouse moves off of it?I can change the speed of the menu opening and closing, but not can't find a way to delay.It's too easy for visitors to 'slip' off the menu and if you have two child menu's, it get frustraing if you drill down to the secon child menu and slip off. You have to go back to the top menu and start again.
View 2 Replies View RelatedI'm trying to group some existing top-level functions inside a closure (to avoid polluting the global namespace) but I'm not quite getting it to work. First, all the JS works outside my anonymous function, but once I put it in the anonymous function I get an error of "crossfade is not defined". I'm not quite getting why the the setInterval/crossfade works outside the anonymous function but not inside. Anything inside start() should be able to see vars/functions outside start() and it should all be protected in the closure created by the top-level anonymous function? I'm not trying to access anything *within* crossfade(), I'm just trying to execute it.
Code:
(function($) {
//vars up here that internal functions can access
//also using some jquery inside here, so using $
function crossfade() {
//body here
}
//other functions
function start() {
//body here
cInterval = setInterval('crossfade()', 5000);
}
})(jQuery);
Here is the layout of my form from left to right, from top to down.
- buttonA, buttonB, buttonC
- textbox, textbox, textbox
- buttonXXX
After the user types in the textboxes and press enter (with the cursor still
in one of the textboxes), buttonXXX should be pressed by default.(the user
is too lazy to take the cursor over to buttonXXX and click).
The problem is the top/left most button (button A) gets pressed which annoys
them to death. So I tried to do this.
In the bottonA's onfocus event handle-
document.forms[0].elements['buttonXXX'].focus() .
Result: ButtonXXX receives focus alright, but the code for buttonA still
executes!
For those who have been using Outlook Express, you must be pretty used to
the fact that whenever you focus on the preview section, the header for the
preview turns from grey to blue, while the text turns from black to white.
Code:
I'm fairly new to this and my code is as follows...
<script language="JavaScript>
var oldValue
function focusElement(theElement) {
oldValue = theElement.value;
return;
}
</script>
Then in the HTML, I have
<select size="1" id="ConfCommentSELECT" name="ConfCommentSELECT"
onfocus="return focusPrecedence(this);">
<option value="0"> - </option>
<option value="1">1</option>
<option value="2">2</option>
</select>
The <select> is with a <form><tr><td>, but I don't see how that would make a
difference. I started using the onchange="return blah-blah-blah(this);" and
that worked so I copied that to the onfocus. What I want to do is to
remember the value of the contents of the <select> before the user changes
it, and compare it to the new value.
This HTML and CSS:
<!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" xml:lang="en" lang="en">
<head>
<title>onfocus tooltips</title>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<style type="text/css">
<!--
div.tooltip,div.heretooltip {
font:0.7em verdana,helvetica,arial,sans-serif;
border:1px solid #000;
background-color:#ffffe1;
color:#000;
padding:2px 4px 2px 4px;
text-align:left;
filter:progid:DXImageTransform.Microsoft.Shadow(color=#666666,direction=135,strength=1);
position:absolute;
width:auto;
height:auto;
}
div.heretooltip {
border:1px solid #003;
background-color:#fefefe;
color:#003;
}
-->
</style>
</head>
<body>
<script type="text/javascript" src="tooltips.js"></script>
<p>Use the TAB and Shift-TAB keys to navigate this list.</p>
<ul>
<li><a href="/" title="Home Page" tabindex="10">Home</a>
<ul>
<li><a href="/sitemap.php" title="A guide to the areas of this website" tabindex="20">Sitemap</a></li>
<li><a href="/preferences.php" title="Change the design scheme and functionality" tabindex="30">Preferences</a></li>
<li><a href="/brothercake.php" title="About this site and its webmaster :)" tabindex="40">About brothercake</a></li>
</ul>
</li>
</ul>
</body></html>
And this in tooltips.js
// global vars
var i, pos, obj, tempObj, tempEle, winSize, extent, scrollHeight;
//toolTip object
var toolTip = null;
var toolTipParent = null;
//find object position
function getRealPos(ele,dir)
{
(dir=="x") ? pos = ele.offsetLeft : pos = ele.offsetTop;
tempEle = ele.offsetParent;
while(tempEle != null)
{
pos += (dir=="x") ? tempEle.offsetLeft : tempEle.offsetTop;
tempEle = tempEle.offsetParent;
}
return pos;
}
//delay timer
var goTip = false;
var goTimer = null;
function focusTimer(e)
{
//second loop
if(goTimer != null)
{
//clear timer
clearInterval(goTimer);
goTimer = null;
//pass object to create tooltip
focusTip(e);
}
//first loop
else
{
//get focussed object
(e) ? obj = e.target : obj = event.srcElement;
//pass object back through timer
tempObj = obj;
//set interval
goTimer = setInterval('focusTimer(tempObj)',400);
}
}
//create tooltip
function focusTip(obj)
{
//remove any existing tooltip
blurTip();
//if tooltip is null
if(toolTip == null)
{
//get window dimensions
if(typeof window.innerWidth!="undefined")
{
winSize = {
x : window.innerWidth,
y : window.innerHeight
};
}
else if(typeof document.documentElement.offsetWidth!="undefined")
{
winSize = {
x : document.documentElement.offsetWidth,
y : document.documentElement.offsetHeight
};
}
else
{
winSize = {
x : document.body.offsetWidth,
y : document.body.offsetHeight
};
}
//create toolTip
toolTip = document.createElement('div');
//add classname
toolTip.setAttribute('class','');
toolTip.className = (obj.className == 'youAreHere') ? 'heretooltip' : 'tooltip'
//get focussed object co-ordinates
if(toolTipParent == null)
{
toolTipParent = {
x : getRealPos(obj,'x') - 3,
y : getRealPos(obj,'y') + 2
};
}
// offset tooltip from object
toolTipParent.y += obj.offsetHeight;
//apply tooltip position
toolTip.style.left = toolTipParent.x + 'px'
toolTip.style.top = toolTipParent.y + 'px'
//write in title attribute (with 'you are here' string)
toolTip.innerHTML = (obj.className == 'youAreHere') ? obj.title + ' <b>[You Are Here]</b>' : obj.title;
//add to document
document.body.appendChild(toolTip);
//restrict width
if(toolTip.offsetWidth > 300)
{
toolTip.style.width = âÆpx'
}
//get tooltip extent
extent = {
x : toolTip.offsetWidth,
y : toolTip.offsetHeight
};
//if tooltip exceeds window width
if((toolTipParent.x + extent.x) >= winSize.x)
{
//shift tooltip left
toolTipParent.x -= extent.x;
toolTip.style.left = toolTipParent.x + 'px'
}
//get scroll height
if(typeof window.pageYOffset!="undefined")
{
scrollHeight = window.pageYOffset;
}
else if(typeof document.documentElement.scrollTop!="undefined")
{
scrollHeight = document.documentElement.scrollTop;
}
else
{
scrollHeight = document.body.scrollTop;
}
//if tooltip exceeds window height
if((toolTipParent.y + extent.y) >= (winSize.y + scrollHeight))
{
//shift tooltip up
toolTipParent.y -= (extent.y+obj.offsetHeight+4);
toolTip.style.top = toolTipParent.y + 'px'
}
}
}
function blurTip()
{
//if tooltip exists
if(toolTip != null)
{
//remove and nullify tooltip
document.body.removeChild(toolTip);
toolTip = null;
toolTipParent = null;
}
//cancel timer
clearInterval(goTimer);
goTimer = null;
}
window.onload = function()
{
if(typeof document.getElementsByTagName!="undefined")
{
//get tags collection
var allTags = document.getElementsByTagName('*');
var allTagsLen = allTags.length;
for (var i=0;i<allTagsLen;i++)
{
//if tag has title attribute
if(allTags[i].title)
{
//attach event
allTags[i].onfocus = focusTimer;
allTags[i].onblur = blurTip;
allTags[i].onmouseover = blurTip;
}
}
}
}
1. How to reset textbox + textarea?
2. How to make the "function getKeyValue_h(chr)" work without the submit button? (on pasting in textarea it should automatically give the calculated result in the textbox.)
I'm developing a website where a visistor does not have to use the mouse.
All he has to do is use the Tab-key or key-combinations to jump to specific
hyperlinks (containing accesskeys). Next, he presses the Enter key to follow the hyperlink.
My question is: is it possible to change color of the hyperlink when a
hyperlink get the focus. I do not only want to see the dotted line, I want the hyperlink to lighten up.
My code works perfectly inside DreamWeaver but is crazy in both IE8 and FireFox.
In FireFox, I cannot insert text in the text fields.
In IE8, I can insert text, but nothing else happens.
My code is as follows:
Code:
<script language="JavaScript">
<!--
var Counter;
[Code].....
I've got a default value of some text in an input element when a page loads.
What I'd like to do is have the value disappear when the user clicks in the
input field.
I've figured out I can use:
onclick="this.value=''"
This works fine, however if for some reason the user adds his own input,
then click somewhere else/clicks back, the text has once again been erased.
So I thought of a function like the following, however it does not work:
function removeinput(x) {
if (x == 'Enter items not on standard list here...') {
x = ''
}
}
onclick="removeinput(this.value);"
I've also tried placing this.value inside of single quotes to no avail.
Setting the min to 0 will dispaly all the optins if the user clicks the field a 2nd time. However, i'd like the options to display once the input has focus, or using a button. How can I do that?
View 1 Replies View RelatedI'm trying to use javascript to control a table's td styles. What I want to achieve is to
- apply style A onmouseover
- apply style B onmouseout
- apply style A onfocus
The problem is that the mouseout event overrides the focus event. Also I'd like each element to stay on the focus state until another element gets clicked.
This is my code:
<script language="javascript" type="text/javascript">
function HoverStyle(element) {
document.getElementById(element).style.backgroundImage = "url(images/arrow1.jpg)";
[code].....
I am trying to get a text field to increase in size (one time to a predetermined size) when user clicks in the text field.
Here is the code that for some reason isn't working for me.
Can we have two onFocus javascriptscript events for single HTML Tag?
View 1 Replies View Relatedi'm sure its been thought of before and i'm sure this is just gunna piss off the people who like to tab through their pages, but i just made a little behavior component file that stops any links from gaining focus on your page.
put this is the style section of your page.
<style type="text/css">
a { behavior: url("hidefocus.htc"); }
</style>
then put the attached file in the same dir. (hidefocus.htc) this is all it is
<public:component>
<public:attach event="onfocus" handler="blurry" />
<script>
function blurry() {
element.blur();
}
</script>
</public:component>
Note: since this behavior is stored in an external file, sometimes one instance of link focus can occur before the htc file can be loaded. if anyone has any tips on fixing that i'd like to hear'em.
I want to have a function on an event
<span id= "nameheader"> </span>
<form method ="post" action="send.php">
<input
id = "nameinput"
class = "input"
value = "name"
onfocus = "focus();"
onblur = "blur();"
/>
That is when you focus on the input box the value ' name' gets put above the box and when you focus on something else it goes back to the box.
this is my function
focus(){
document.getElementById('nameheader').innerHTML = 'name';
document.getElementById('nameinput').value = '';
}
And I would obviously do the opposite for onblur event.
How do you assign multiple onfocus events to a input tag? code...
View 11 Replies View Related