The issue:
Some of the items in the select require more than the specified width of 145px in order to display fully.
Firefox behavior: clicking on the select reveals the dropdown elements list adjusted to the width of the longest element.
IE6 & IE7 behavior: clicking on the select reveals the dropdown elements list restricted to 145px width making it impossible to read the longer elements.
The current UI requires us to fit this dropdown in 145px and have it host items with longer descriptions.
Any advise on resolving the issue with IE?
The top element should remain 145px wide even when the list is expanded.
Thank you!
The css:
select.center_pull {
background:#eeeeee none repeat scroll 0 0;
border:1px solid #7E7E7E;
color:#333333;
font-size:12px;
margin-bottom:4px;
margin-right:4px;
margin-top:4px;
width:145px;
}
Here's the select input code (there's no definition for the backend_dropbox style at this time)
<select id="select_1" class="center_pull backend_dropbox" name="select_1">
<option value="-1" selected="selected">Browse options</option>
<option value="-1">------------------------------------</option>
<option value="224">Option 1</option>
<option value="234">Longer title for option 2</option>
<option value="242">Very long and extensively descriptive title for option 3</option>
</select>
Full html page in case you want to quickly test in a browser:
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>dropdown test</title>
<style type="text/css">
<!--
select.center_pull {
background:#eeeeee none repeat scroll 0 0;
border:1px solid #7E7E7E;
color:#333333;
font-size:12px;
margin-bottom:4px;
margin-right:4px;
margin-top:4px;
width:145px;
}
-->
</style>
</head>
<body>
<p>Select width test</p>
<form id="form1" name="form1" method="post" action="">
<select id="select_1" class="center_pull backend_dropbox" name="select_1">
<option value="-1" selected="selected">Browse options</option>
<option value="-1">------------------------------------</option>
<option value="224">Option 1</option>
<option value="234">Longer title for option 2</option>
<option value="242">Very long and extensively descriptive title for option 3</option>
</select>
</form>
</body>
</html>
For IE 8 there is a simple pure css-based solution:
select:focus {
width: auto;
position: relative;
}
(You need to set the position property, if the selectbox is child of a container with fixed width.)
Unfortunately IE 7 and less do not support the :focus selector.
I did Google about this issue but didn't find any best solution ,So Created a solution that works fine in all browsers.
just call badFixSelectBoxDataWidthIE() function on page load.
function badFixSelectBoxDataWidthIE(){
if ($.browser.msie){
$('select').each(function(){
if($(this).attr('multiple')== false){
$(this)
.mousedown(function(){
if($(this).css("width") != "auto") {
var width = $(this).width();
$(this).data("origWidth", $(this).css("width"))
.css("width", "auto");
/* if the width is now less than before then undo */
if($(this).width() < width) {
$(this).unbind('mousedown');
$(this).css("width", $(this).data("origWidth"));
}
}
})
/* Handle blur if the user does not change the value */
.blur(function(){
$(this).css("width", $(this).data("origWidth"));
})
/* Handle change of the user does change the value */
.change(function(){
$(this).css("width", $(this).data("origWidth"));
});
}
});
}
}
Here is a little script that should help you out:
http://www.icant.co.uk/forreview/tamingselect/
For a simple Javascript-free solution, adding a title-attribute to your <option>s holding the text might be enough, depending on your requirements.
<option value="242" title="Very long and extensively descriptive text">
Very long and extensively descriptive text
</option>
This will show the cut-off text in a tool-tip fashion on hovering the <option>, regardless of the width of the <select>.
Works for IE7+.
Not javascript free i'm afraid, but I managed to make it quite small using jQuery
$('#del_select').mouseenter(function () {
$(this).css("width","auto");
});
$('#del_select').mouseout(function () {
$(this).css("width","170px");
});
Simply you can use this plugin for jquery ;)
http://plugins.jquery.com/project/skinner
$(function(){
$('.select1').skinner({'width':'200px'});
});
Small, but hopefully useful update to the code from MainMa & user558204 (thanks guys), which removes the unnecessary each loop, stores a copy of $(this) in a variable in each event handler as it's used more than once, also combined the blur & change events as they had the same action.
Yes, it's still not perfect as it resizes the select element, rather than just the drop-down options. But hey, it got me out of a pickle, I (very, very unfortunately) still have to support an IE6-dominant user base across the business.
// IE test from from: https://gist.github.com/527683
var ie = (function () {
var undef, v = 3, div = document.createElement('div'), all = div.getElementsByTagName('i');
while (
div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->',
all[0]
);
return v > 4 ? v : undef;
} ());
function badFixSelectBoxDataWidthIE() {
if (ie < 9) {
$('select').not('[multiple]')
.mousedown(function() {
var t = $(this);
if (t.css("width") != "auto") {
var width = t.width();
t.data("ow", t.css("width")).css("width", "auto");
// If the width is now less than before then undo
if (t.width() < width) {
t.unbind('mousedown');
t.css("width", t.data("ow"));
}
}
})
//blur or change if the user does change the value
.bind('blur change', function() {
var t = $(this);
t.css("width", t.data("ow"));
});
}
}
A different approach:
instead of a select make it an edit box, disabled so noone can enter anything manually or change contents after selection
another hidden edit to contain an id of a selected option (explained below)
make a button [..] and script it to show that div below
make a hidden div with absolute position under or near the edit box
make that div to contain a select with style size="6" (to show 6 options and a scrollbar rather than a drop-down list) and a button "select" and maybe "cancel"
Do not style width so the whole thing will assume width of the widest option or the button plus maybe some padding of your choice
script the "select" button to copy id of the selected option to the hidden edit box and it's value to the visible one, also to hide the div again.
4 simple javascript commands total.
I found a pretty straightforward fix for this. In the <select> html element add these properties:
onmouseover="autoWidth(this)"
onblur="resetWidth(this)"
So whenever user clicks on that the width will automatically expand, and user moves out of the select box, the width will be reset to original.
similar solution can be found here using jquery to set the auto width when focus (or mouseenter) and set the orignal width back when blur (or mouseleave) http://css-tricks.com/select-cuts-off-options-in-ie-fix/.
for (i=1;i<=5;i++){
idname = "Usert" + i;
document.getElementById(idname).style.width = "100%";
}
I used this way to showed the drop down list when the width is not showed correctly.
It work for IE6, Firefox and Chrome.
A full fledged jQuery plugin is available, check out the demo page: http://powerkiki.github.com/ie_expand_select_width/
disclaimer: I coded that thing, patches welcome
Why would anyone want a mouse over event on a drop down list? Here's a way of manipulating IE8 for the way a drop down list should work:
First, let's make sure we are only passing our function in IE8:
var isIE8 = $.browser.version.substring(0, 2) === "8.";
if (isIE8) {
//fix me code
}
Then, to allow the select to expand outside of the content area, let's wrap our drop down lists in div's with the correct structure, if not already, and then call the helper function:
var isIE8 = $.browser.version.substring(0, 2) === "8.";
if (isIE8) {
$('select').wrap('<div class="wrapper" style="position:relative; display: inline-block; float: left;"></div>').css('position', 'absolute');
//helper function for fix
ddlFix();
}
Now onto the events. Since IE8 throws an event after focusing in for whatever reason, IE will close the widget after rendering when trying to expand. The work around will be to bind to 'focusin' and 'focusout' a class that will auto expand based on the longest option text. Then, to ensure a constant min-width that doesn't shrink past the default value, we can obtain the current select list width, and set it to the drop down list min-width property on the 'onchange' binding:
function ddlFix() {
var minWidth;
$('select')
.each(function () {
minWidth = $(this).width();
$(this).css('min-width', minWidth);
})
.bind('focusin', function () {
$(this).addClass('expand');
})
.change(function () {
$(this).css('width', minWidth);
})
.bind('focusout', function () {
$(this).removeClass('expand');
});
}
Lastly, make sure to add this class in the style sheet:
select:focus, select.expand {
width: auto;
}
Not javascript free, I am afraid too and my solution do require a js library, however, you can only use those files which you need rather than using them all, maybe best suited for those who are already using YUI for their projects or deciding which one to use. Have a look at: http://ciitronian.com/blog/programming/yui-button-mimicking-native-select-dropdown-avoid-width-problem/
My blog post also discusses other solutions as well, one is referenced back to here on stackoverflow, why I went back to create my own SELECT element is because of simple reason, I don't like mouseover expand events. Maybe if that helps anyone else too!
The jquery BalusC's solution improved by me. Used also: Brad Robertson's comment here.
Just put this in a .js, use the wide class for your desired combos and don't forge to give it an Id. Call the function in the onload (or documentReady or whatever).
As simple ass that :)
It will use the width that you defined for the combo as minimun length.
function fixIeCombos() {
if ($.browser.msie && $.browser.version < 9) {
var style = $('<style>select.expand { width: auto; }</style>');
$('html > head').append(style);
var defaultWidth = "200";
// get predefined combo's widths.
var widths = new Array();
$('select.wide').each(function() {
var width = $(this).width();
if (!width) {
width = defaultWidth;
}
widths[$(this).attr('id')] = width;
});
$('select.wide')
.bind('focus mouseover', function() {
// We're going to do the expansion only if the resultant size is bigger
// than the original size of the combo.
// In order to find out the resultant size, we first clon the combo as
// a hidden element, add to the dom, and then test the width.
var originalWidth = widths[$(this).attr('id')];
var $selectClone = $(this).clone();
$selectClone.addClass('expand').hide();
$(this).after( $selectClone );
var expandedWidth = $selectClone.width()
$selectClone.remove();
if (expandedWidth > originalWidth) {
$(this).addClass('expand').removeClass('clicked');
}
})
.bind('click', function() {
$(this).toggleClass('clicked');
})
.bind('mouseout', function() {
if (!$(this).hasClass('clicked')) {
$(this).removeClass('expand');
}
})
.bind('blur', function() {
$(this).removeClass('expand clicked');
})
}
}
Its tested in all version of IE, Chrome, FF & Safari
// JavaScript code
<script type="text/javascript">
<!-- begin hiding
function expandSELECT(sel) {
sel.style.width = '';
}
function contractSELECT(sel) {
sel.style.width = '100px';
}
// end hiding -->
</script>
// Html code
<select name="sideeffect" id="sideeffect" style="width:100px;" onfocus="expandSELECT(this);" onblur="contractSELECT(this);" >
<option value="0" selected="selected" readonly="readonly">Select</option>
<option value="1" >Apple</option>
<option value="2" >Orange + Banana + Grapes</option>
I've got yet another contribution to this. I wrote this a while back that you may find helpful: http://dpatrickcaldwell.blogspot.com/2011/06/giantdropdown-jquery-plugin-for-styling.html
It's a jquery plugin to make a styleable unordered list backed by the hidden select element.
The source is on github: https://github.com/tncbbthositg/GiantDropdown
You'd be able to handle behaviors and styles on the UL that you can't with the SELECT. Everything else should be the same because the select list is still there, it's just hidden but the UL will use it as a backing data store (if you will).
I wanted this to work with selects that I added dynamically to the page, so after a lot of experimentation, I ended up giving all the selects that I wanted to do this with the class "fixedwidth", and then added the following CSS:
table#System_table select.fixedwidth { width: 10em; }
table#System_table select.fixedwidth.clicked { width: auto; }
and this code
<!--[if lt IE 9]>
<script type="text/javascript">
jQuery(document).ready(function() {
jQuery(document).on(
{
'mouseenter': function(event) {
jQuery(this).addClass('clicked');
},
'focusout change blur': function() {
jQuery(this).removeClass('clicked');
}
}, 'select.fixedwidth');
});
</script>
<![endif]-->
A couple of things to note:
In spite of the fact that my selects are all in a table, I had to do "on" to the jQuery(document).on instead of to jQuery('table#System_table').on
In spite of the fact that the jQuery documentation says to use "mouseleave" instead of "blur", I found that in IE7 when I moved the mouse down the drop down list, it would get a mouseleave event but not a blur.
Here is a solution that actually works.
It sets the width in IE and doesn't mess up your page layout and doesn't close the dropdown when you mouse over the select options like some of the other solutions on this page.
You will need however to change the margin-right value and width values to match what you have for your select fields.
Also you can replace the $('select') with $('#Your_Select_ID_HERE') to only effect a specific select field. As well you will need to call the function fixIESelect() on the body onload or via jQuery using DOM ready as I did in my code below:
//////////////////////////
// FIX IE SELECT INPUT //
/////////////////////////
window.fixIESelect_clickset = false;
function fixIESelect()
{
if ($.browser.msie)
{
$('select').mouseenter(function ()
{
$(this).css("width","auto");
$(this).css("margin-right","-100");
});
$('select').bind('click focus',function ()
{
window.fixIESelect_clickset = true;
});
$('select').mouseout(function ()
{
if(window.fixIESelect_clickset != true)
{
$(this).css("width","93px");
window.fixIESelect_clickset = false;
}
});
$('select').bind('blur change',function ()
{
$(this).css("width","93px");
});
}
}
/////////////
// ONLOAD //
////////////
$(document).ready(function()
{
fixIESelect();
});
For my layout, I didn't want a hack (no width increasing, no on click with auto and then coming to original). It broke my existing layout. I just wanted it to work normally like other browsers.
I found this to be exactly like that :-
http://www.jquerybyexample.net/2012/05/fix-for-ie-select-dropdown-with-fixed.html
A workaround if you don't care about the strange view after an option is selected (i.e. Select to jump to a new page):
<!-- Limit width of the wrapping div instead of the select and use 'overflow: hidden' to hide the right part of it. -->
<div style='width: 145px; overflow: hidden; border-right: 1px solid #aaa;'>
<select onchange='jump();'>
<!-- '▼(▼)' produces a fake dropdown indicator -->
<option value=''>Jump to ... ▼</option>
<option value='1'>http://stackoverflow.com/questions/682764/select-dropdown-with-fixed-width-cutting-off-content-in-ie</option>
...
</select>
</div>
A pure css solution : http://bavotasan.com/2011/style-select-box-using-only-css/
.styled-select select {
background: transparent;
width: 268px;
padding: 5px;
font-size: 16px;
line-height: 1;
border: 0;
border-radius: 0;
height: 34px;
-webkit-appearance: none;
}
.styled-select {
width: 240px;
height: 34px;
overflow: hidden;
background: url(http://cdn.bavotasan.com/wp-content/uploads/2011/05/down_arrow_select.jpg) no-repeat right #ddd;
border: 1px solid #ccc;
}
<div class="styled-select">
<select>
<option>Here is the first option</option>
<option>The second option</option>
</select>
</div>
Best solution: css + javascript
http://css-tricks.com/select-cuts-off-options-in-ie-fix/
var el;
$("select")
.each(function() {
el = $(this);
el.data("origWidth", el.outerWidth()) // IE 8 can haz padding
})
.mouseenter(function(){
$(this).css("width", "auto");
})
.bind("blur change", function(){
el = $(this);
el.css("width", el.data("origWidth"));
});
Related
I have a link button inside a <td> which I have to disable. This works on IE but not working in Firefox and Chrome.
I tried all the following but not working on Firefox (using 1.4.2 js):
$(".myLink").attr('disabled', 'disabled');
$(".myLink").attr('disabled', true);
$(".myLink").attr('disabled', 'true');
Note - I cannot de-register the click function for the anchor tag as it is registered dynamically. AND I HAVE TO SHOW THE LINK IN DISABLED MODE.
You can't disable a link (in a portable way). You can use one of these techniques (each one with its own benefits and disadvantages).
CSS way
This should be the right way (but see later) to do it when most of browsers will support it:
a.disabled {
pointer-events: none;
}
It's what, for example, Bootstrap 3.x does. Currently (2016) it's well supported only by Chrome, FireFox and Opera (19+). Internet Explorer started to support this from version 11 but not for links however it's available in an outer element like:
span.disable-links {
pointer-events: none;
}
With:
<span class="disable-links">...</span>
Workaround
We, probably, need to define a CSS class for pointer-events: none but what if we reuse the disabled attribute instead of a CSS class? Strictly speaking disabled is not supported for <a> but browsers won't complain for unknown attributes. Using the disabled attribute IE will ignore pointer-events but it will honor IE specific disabled attribute; other CSS compliant browsers will ignore unknown disabled attribute and honor pointer-events. Easier to write than to explain:
a[disabled] {
pointer-events: none;
}
Another option for IE 11 is to set display of link elements to block or inline-block:
<a style="pointer-events: none; display: inline-block;" href="#">...</a>
Note that this may be a portable solution if you need to support IE (and you can change your HTML) but...
All this said please note that pointer-events disables only...pointer events. Links will still be navigable through keyboard then you also need to apply one of the other techniques described here.
Focus
In conjunction with above described CSS technique you may use tabindex in a non-standard way to prevent an element to be focused:
...
I never checked its compatibility with many browsers then you may want to test it by yourself before using this. It has the advantage to work without JavaScript. Unfortunately (but obviously) tabindex cannot be changed from CSS.
Intercept clicks
Use a href to a JavaScript function, check for the condition (or the disabled attribute itself) and do nothing in case.
$("td > a").on("click", function(event){
if ($(this).is("[disabled]")) {
event.preventDefault();
}
});
To disable links do this:
$("td > a").attr("disabled", "disabled");
To re-enable them:
$("td > a").removeAttr("disabled");
If you want instead of .is("[disabled]") you may use .attr("disabled") != undefined (jQuery 1.6+ will always return undefined when the attribute is not set) but is() is much more clear (thanks to Dave Stewart for this tip). Please note here I'm using the disabled attribute in a non-standard way, if you care about this then replace attribute with a class and replace .is("[disabled]") with .hasClass("disabled") (adding and removing with addClass() and removeClass()).
Zoltán Tamási noted in a comment that "in some cases the click event is already bound to some "real" function (for example using knockoutjs) In that case the event handler ordering can cause some troubles. Hence I implemented disabled links by binding a return false handler to the link's touchstart, mousedown and keydown events. It has some drawbacks (it will prevent touch scrolling started on the link)" but handling keyboard events also has the benefit to prevent keyboard navigation.
Note that if href isn't cleared it's possible for the user to manually visit that page.
Clear the link
Clear the href attribute. With this code you do not add an event handler but you change the link itself. Use this code to disable links:
$("td > a").each(function() {
this.data("href", this.attr("href"))
.attr("href", "javascript:void(0)")
.attr("disabled", "disabled");
});
And this one to re-enable them:
$("td > a").each(function() {
this.attr("href", this.data("href")).removeAttr("disabled");
});
Personally I do not like this solution very much (if you do not have to do more with disabled links) but it may be more compatible because of various way to follow a link.
Fake click handler
Add/remove an onclick function where you return false, link won't be followed. To disable links:
$("td > a").attr("disabled", "disabled").on("click", function() {
return false;
});
To re-enable them:
$("td > a").removeAttr("disabled").off("click");
I do not think there is a reason to prefer this solution instead of the first one.
Styling
Styling is even more simple, whatever solution you're using to disable the link we did add a disabled attribute so you can use following CSS rule:
a[disabled] {
color: gray;
}
If you're using a class instead of attribute:
a.disabled {
color: gray;
}
If you're using an UI framework you may see that disabled links aren't styled properly. Bootstrap 3.x, for example, handles this scenario and button is correctly styled both with disabled attribute and with .disabled class. If, instead, you're clearing the link (or using one of the others JavaScript techniques) you must also handle styling because an <a> without href is still painted as enabled.
Accessible Rich Internet Applications (ARIA)
Do not forget to also include an attribute aria-disabled="true" together with disabled attribute/class.
Got the fix in css.
td.disabledAnchor a{
pointer-events: none !important;
cursor: default;
color:Gray;
}
Above css when applied to the anchor tag will disable the click event.
For details checkout this link
Thanks to everyone that posted solutions (especially #AdrianoRepetti), I combined multiple approaches to provide some more advanced disabled functionality (and it works cross browser). The code is below (both ES2015 and coffeescript based on your preference).
This provides for multiple levels of defense so that Anchors marked as disable actually behave as such.
Using this approach, you get an anchor that you cannot:
click
tab to and hit return
tabbing to it will move focus to the next focusable element
it is aware if the anchor is subsequently enabled
How to
Include this css, as it is the first line of defense. This assumes the selector you use is a.disabled
a.disabled {
pointer-events: none;
cursor: default;
}
Next, instantiate this class on ready (with optional selector):
new AnchorDisabler()
ES2015 Class
npm install -S key.js
import {Key, Keycodes} from 'key.js'
export default class AnchorDisabler {
constructor (config = { selector: 'a.disabled' }) {
this.config = config
$(this.config.selector)
.click((ev) => this.onClick(ev))
.keyup((ev) => this.onKeyup(ev))
.focus((ev) => this.onFocus(ev))
}
isStillDisabled (ev) {
// since disabled can be a class or an attribute, and it can be dynamically removed, always recheck on a watched event
let target = $(ev.target)
if (target.hasClass('disabled') || target.prop('disabled') == 'disabled') {
return true
}
else {
return false
}
}
onFocus (ev) {
// if an attempt is made to focus on a disabled element, just move it along to the next focusable one.
if (!this.isStillDisabled(ev)) {
return
}
let focusables = $(':focusable')
if (!focusables) {
return
}
let current = focusables.index(ev.target)
let next = null
if (focusables.eq(current + 1).length) {
next = focusables.eq(current + 1)
} else {
next = focusables.eq(0)
}
if (next) {
next.focus()
}
}
onClick (ev) {
// disabled could be dynamically removed
if (!this.isStillDisabled(ev)) {
return
}
ev.preventDefault()
return false
}
onKeyup (ev) {
// We are only interested in disabling Enter so get out fast
if (Key.isNot(ev, Keycodes.ENTER)) {
return
}
// disabled could be dynamically removed
if (!this.isStillDisabled(ev)) {
return
}
ev.preventDefault()
return false
}
}
Coffescript class:
class AnchorDisabler
constructor: (selector = 'a.disabled') ->
$(selector).click(#onClick).keyup(#onKeyup).focus(#onFocus)
isStillDisabled: (ev) =>
### since disabled can be a class or an attribute, and it can be dynamically removed, always recheck on a watched event ###
target = $(ev.target)
return true if target.hasClass('disabled')
return true if target.attr('disabled') is 'disabled'
return false
onFocus: (ev) =>
### if an attempt is made to focus on a disabled element, just move it along to the next focusable one. ###
return unless #isStillDisabled(ev)
focusables = $(':focusable')
return unless focusables
current = focusables.index(ev.target)
next = (if focusables.eq(current + 1).length then focusables.eq(current + 1) else focusables.eq(0))
next.focus() if next
onClick: (ev) =>
# disabled could be dynamically removed
return unless #isStillDisabled(ev)
ev.preventDefault()
return false
onKeyup: (ev) =>
# 13 is the js key code for Enter, we are only interested in disabling that so get out fast
code = ev.keyCode or ev.which
return unless code is 13
# disabled could be dynamically removed
return unless #isStillDisabled(ev)
ev.preventDefault()
return false
Try the element:
$(td).find('a').attr('disabled', 'disabled');
Disabling a link works for me in Chrome: http://jsfiddle.net/KeesCBakker/LGYpz/.
Firefox doesn't seem to play nice. This example works:
<a id="a1" href="http://www.google.com">Google 1</a>
<a id="a2" href="http://www.google.com">Google 2</a>
$('#a1').attr('disabled', 'disabled');
$(document).on('click', 'a', function(e) {
if ($(this).attr('disabled') == 'disabled') {
e.preventDefault();
}
});
Note: added a 'live' statement for future disabled / enabled links.
Note2: changed 'live' into 'on'.
Bootstrap 4.1 provides a class named disabled and aria-disabled="true" attribute.
example"
<a href="#"
class="btn btn-primary btn-lg disabled"
tabindex="-1"
role="button" aria-disabled="true"
>
Primary link
</a>
More is on getbootstrap.com
So if you want to make it dynamically, and you don't want to care if it is button or ancor than
in JS script you need something like that
let $btn=$('.myClass');
$btn.attr('disabled', true);
if ($btn[0].tagName == 'A'){
$btn.off();
$btn.addClass('disabled');
$btn.attr('aria-disabled', true);
}
But be carefull
The solution only works on links with classes btn btn-link.
Sometimes bootstrap recommends using card-link class, in this case solution will not work.
Just add a css property:
<style>
a {
pointer-events: none;
}
</style>
Doing so you can disable the anchor tag.
I've ended up with the solution below, which can work with either an attribute, <a href="..." disabled="disabled">, or a class <a href="..." class="disabled">:
CSS Styles:
a[disabled=disabled], a.disabled {
color: gray;
cursor: default;
}
a[disabled=disabled]:hover, a.disabled:hover {
text-decoration: none;
}
Javascript (in jQuery ready):
$("a[disabled], a.disabled").on("click", function(e){
var $this = $(this);
if ($this.is("[disabled=disabled]") || $this.hasClass("disabled"))
e.preventDefault();
})
In Razor (.cshtml) you can do:
#{
var isDisabled = true;
}
Home
You can disable the HTML link as given below:
<style>
.disabled-link {
pointer-events: none;
}
</style>
Google.com
You can use inline JavaScript:
Google.com
you cannot disable a link, if you want that click event should not fire then simply Remove the action from that link.
$(td).find('a').attr('href', '');
For More Info :- Elements that can be Disabled
I would do something like
$('td').find('a').each(function(){
$(this).addClass('disabled-link');
});
$('.disabled-link').on('click', false);
something like this should work. You add a class for links you want to have disabled and then you return false when someone click them. To enable them just remove the class.
To disable link to access another page on touch device:
if (control == false)
document.getElementById('id_link').setAttribute('href', '#');
else
document.getElementById('id_link').setAttribute('href', 'page/link.html');
end if;
I would suggest turning the link into a button and using the 'disabled' attribute. You can see this issue to check how to convert a link to a button: How to create an HTML button that acts like a link
You can use this to disabled the Hyperlink of asp.net or link buttons in html.
$("td > a").attr("disabled", "disabled").on("click", function() {
return false;
});
There is one other possible way, and the one that I like best. Basically it's the same way lightbox disables a whole page, by placing a div and fiddling with z-index. Here is relevant snippets from a project of mine. This works in all browsers!!!!!
Javascript (jQuery):
var windowResizer = function(){
var offset = $('#back').offset();
var buttontop = offset.top;
var buttonleft = offset.left;
$('#backdisabler').css({'top':buttontop,'left':buttonleft,'visibility':'visible'});
offset = $('#next').offset();
buttontop = offset.top;
buttonleft = offset.left;
$('#nextdisabler').css({'top':buttontop,'left':buttonleft,'visibility':'visible'});
}
$(document).ready(function() {
$(window).resize(function() {
setTimeout(function() {
windowResizer();
}, 5); //when the maximize/restore buttons are pressed, we have to wait or it will fire to fast
});
});
and in html
<img src="images/icons/back.png" style="height: 50px; width: 50px" />
<img src="images/icons/next.png" style="height: 50px; width: 50px" />
<img id="backdisabler" src="images/icons/disabled.png" style="visibility: hidden; position: absolute; padding: 5px; height: 62px; width: 62px; z-index: 9000"/>
<img id="nextdisabler" src="images/icons/disabled.png" style="visibility: hidden; position: absolute; padding: 5px; height: 62px; width: 62px; z-index: 9000"/>
So the resizer finds the anchor's (the images are just arrows) locations and places the disabler on top. The disabler's image is a translucent grey square (change the width/height of the disablers in the html to match your link) to show that it is disabled. The floating allows the page to resize dynamically, and the disablers will follow suit in windowResizer(). You can find suitable images through google. I have placed the relevant css inline for simplicity.
then based on some condition,
$('#backdisabler').css({'visibility':'hidden'});
$('#nextdisabler').css({'visibility':'visible'});
I think a lot of these are over thinking. Add a class of whatever you want, like disabled_link. Then make the css have .disabled_link { display: none }
Boom now the user can't see the link so you won't have to worry about them clicking it. If they do something to satisfy the link being clickable, simply remove the class with jQuery: $("a.disabled_link").removeClass("super_disabled"). Boom done!
I have a div with an overflow hidden property, and I want the scroll position to be at the bottom when my page loads.
I have this :
I want this when I load my page :
Any idea ?
This Can Be Easily Done By This Method....
function setItem(){
// We go through all items and change the value of the id attribute to empty
$('#mylist li').each(function (i, v) {
$(v).attr('id', '');
});
// We add the items
$('#mylist').append('<li id="last">test</li>');
// Currently there is only one identifier called "last"
window.location.href = '#last';
}
#mylist{
overflow-y: scroll;
height: 100px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button onclick="setItem();">Add</button>
<div id="mylist"></div>
Just create new li and modify it's id to last and hrefing the document to last.
Then remove id attribute from all li.
Here li are messages.
I think you should look into JS method scrollIntoView. It might be what you're looking for.
I am creating a chat using Ajax requests and I'm trying to get messages div to scroll to the bottom without much luck.
I am wrapping everything in this div:
#scroll {
height:400px;
overflow:scroll;
}
Is there a way to keep it scrolled to the bottom by default using JS?
Is there a way to keep it scrolled to the bottom after an ajax request?
Here's what I use on my site:
var objDiv = document.getElementById("your_div");
objDiv.scrollTop = objDiv.scrollHeight;
This is much easier if you're using jQuery scrollTop:
$("#mydiv").scrollTop($("#mydiv")[0].scrollHeight);
Try the code below:
const scrollToBottom = (id) => {
const element = document.getElementById(id);
element.scrollTop = element.scrollHeight;
}
You can also use Jquery to make the scroll smooth:
const scrollSmoothlyToBottom = (id) => {
const element = $(`#${id}`);
element.animate({
scrollTop: element.prop("scrollHeight")
}, 500);
}
Here is the demo
Here's how it works:
Ref: scrollTop, scrollHeight, clientHeight
using jQuery animate:
$('#DebugContainer').stop().animate({
scrollTop: $('#DebugContainer')[0].scrollHeight
}, 800);
Newer method that works on all current browsers:
this.scrollIntoView(false);
var mydiv = $("#scroll");
mydiv.scrollTop(mydiv.prop("scrollHeight"));
Works from jQuery 1.6
https://api.jquery.com/scrollTop/
http://api.jquery.com/prop/
alternative solution
function scrollToBottom(element) {
element.scroll({ top: element.scrollHeight, behavior: 'smooth' });
}
smooth scroll with Javascript:
document.getElementById('messages').scrollIntoView({ behavior: 'smooth', block: 'end' });
If you don't want to rely on scrollHeight, the following code helps:
$('#scroll').scrollTop(1000000);
Java Script:
document.getElementById('messages').scrollIntoView(false);
Scrolls to the last line of the content present.
My Scenario: I had an list of string, in which I had to append a string given by a user and scroll to the end of the list automatically. I had fixed height of the display of the list, after which it should overflow.
I tried #Jeremy Ruten's answer, it worked, but it was scrolling to the (n-1)th element. If anybody is facing this type of issue, you can use setTimeOut() method workaround. You need to modify the code to below:
setTimeout(() => {
var objDiv = document.getElementById('div_id');
objDiv.scrollTop = objDiv.scrollHeight
}, 0)
Here is the StcakBlitz link I have created which shows the problem and its solution : https://stackblitz.com/edit/angular-ivy-x9esw8
If your project targets modern browsers, you can now use CSS Scroll Snap to control the scrolling behavior, such as keeping any dynamically generated element at the bottom.
.wrapper > div {
background-color: white;
border-radius: 5px;
padding: 5px 10px;
text-align: center;
font-family: system-ui, sans-serif;
}
.wrapper {
display: flex;
padding: 5px;
background-color: #ccc;
border-radius: 5px;
flex-direction: column;
gap: 5px;
margin: 10px;
max-height: 150px;
/* Control snap from here */
overflow-y: auto;
overscroll-behavior-y: contain;
scroll-snap-type: y mandatory;
}
.wrapper > div:last-child {
scroll-snap-align: start;
}
<div class="wrapper">
<div>01</div>
<div>02</div>
<div>03</div>
<div>04</div>
<div>05</div>
<div>06</div>
<div>07</div>
<div>08</div>
<div>09</div>
<div>10</div>
</div>
You can use the HTML DOM scrollIntoView Method like this:
var element = document.getElementById("scroll");
element.scrollIntoView();
Javascript or jquery:
var scroll = document.getElementById('messages');
scroll.scrollTop = scroll.scrollHeight;
scroll.animate({scrollTop: scroll.scrollHeight});
Css:
.messages
{
height: 100%;
overflow: auto;
}
Using jQuery, scrollTop is used to set the vertical position of scollbar for any given element. there is also a nice jquery scrollTo plugin used to scroll with animation and different options (demos)
var myDiv = $("#div_id").get(0);
myDiv.scrollTop = myDiv.scrollHeight;
if you want to use jQuery's animate method to add animation while scrolling down, check the following snippet:
var myDiv = $("#div_id").get(0);
myDiv.animate({
scrollTop: myDiv.scrollHeight
}, 500);
I have encountered the same problem, but with an additional constraint: I had no control over the code that appended new elements to the scroll container. None of the examples I found here allowed me to do just that. Here is the solution I ended up with .
It uses Mutation Observers (https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver) which makes it usable only on modern browsers (though polyfills exist)
So basically the code does just that :
var scrollContainer = document.getElementById("myId");
// Define the Mutation Observer
var observer = new MutationObserver(function(mutations) {
// Compute sum of the heights of added Nodes
var newNodesHeight = mutations.reduce(function(sum, mutation) {
return sum + [].slice.call(mutation.addedNodes)
.map(function (node) { return node.scrollHeight || 0; })
.reduce(function(sum, height) {return sum + height});
}, 0);
// Scroll to bottom if it was already scrolled to bottom
if (scrollContainer.clientHeight + scrollContainer.scrollTop + newNodesHeight + 10 >= scrollContainer.scrollHeight) {
scrollContainer.scrollTop = scrollContainer.scrollHeight;
}
});
// Observe the DOM Element
observer.observe(scrollContainer, {childList: true});
I made a fiddle to demonstrate the concept :
https://jsfiddle.net/j17r4bnk/
Found this really helpful, thank you.
For the Angular 1.X folks out there:
angular.module('myApp').controller('myController', ['$scope', '$document',
function($scope, $document) {
var overflowScrollElement = $document[0].getElementById('your_overflow_scroll_div');
overflowScrollElement[0].scrollTop = overflowScrollElement[0].scrollHeight;
}
]);
Just because the wrapping in jQuery elements versus HTML DOM elements gets a little confusing with angular.
Also for a chat application, I found making this assignment after your chats were loaded to be useful, you also might need to slap on short timeout as well.
Like you, I'm building a chat app and want the most recent message to scroll into view. This ultimately worked well for me:
//get the div that contains all the messages
let div = document.getElementById('message-container');
//make the last element (a message) to scroll into view, smoothly!
div.lastElementChild.scrollIntoView({ behavior: 'smooth' });
small addendum: scrolls only, if last line is already visible. if scrolled a tiny bit, leaves the content where it is (attention: not tested with different font sizes. this may need some adjustments inside ">= comparison"):
var objDiv = document.getElementById(id);
var doScroll=objDiv.scrollTop>=(objDiv.scrollHeight-objDiv.clientHeight);
// add new content to div
$('#' + id ).append("new line at end<br>"); // this is jquery!
// doScroll is true, if we the bottom line is already visible
if( doScroll) objDiv.scrollTop = objDiv.scrollHeight;
Just as a bonus snippet. I'm using angular and was trying to scroll a message thread to the bottom when a user selected different conversations with users. In order to make sure that the scroll works after the new data had been loaded into the div with the ng-repeat for messages, just wrap the scroll snippet in a timeout.
$timeout(function(){
var messageThread = document.getElementById('message-thread-div-id');
messageThread.scrollTop = messageThread.scrollHeight;
},0)
That will make sure that the scroll event is fired after the data has been inserted into the DOM.
This will let you scroll all the way down regards the document height
$('html, body').animate({scrollTop:$(document).height()}, 1000);
You can also, using jQuery, attach an animation to html,body of the document via:
$("html,body").animate({scrollTop:$("#div-id")[0].offsetTop}, 1000);
which will result in a smooth scroll to the top of the div with id "div-id".
Scroll to the last element inside the div:
myDiv.scrollTop = myDiv.lastChild.offsetTop
You can use the Element.scrollTo() method.
It can be animated using the built-in browser/OS animation, so it's super smooth.
function scrollToBottom() {
const scrollContainer = document.getElementById('container');
scrollContainer.scrollTo({
top: scrollContainer.scrollHeight,
left: 0,
behavior: 'smooth'
});
}
// initialize dummy content
const scrollContainer = document.getElementById('container');
const numCards = 100;
let contentInnerHtml = '';
for (let i=0; i<numCards; i++) {
contentInnerHtml += `<div class="card mb-2"><div class="card-body">Card ${i + 1}</div></div>`;
}
scrollContainer.innerHTML = contentInnerHtml;
.overflow-y-scroll {
overflow-y: scroll;
}
<link href="https://cdn.jsdelivr.net/npm/bootstrap#4.5.3/dist/css/bootstrap.min.css" rel="stylesheet"/>
<div class="d-flex flex-column vh-100">
<div id="container" class="overflow-y-scroll flex-grow-1"></div>
<div>
<button class="btn btn-primary" onclick="scrollToBottom()">Scroll to bottom</button>
</div>
</div>
Css only:
.scroll-container {
overflow-anchor: none;
}
Makes it so the scroll bar doesn't stay anchored to the top when a child element is added. For example, when new message is added at the bottom of chat, scroll chat to new message.
Why not use simple CSS to do this?
The trick is to use display: flex; and flex-direction: column-reverse;
Here is a working example. https://codepen.io/jimbol/pen/YVJzBg
A very simple method to this is to set the scroll to to the height of the div.
var myDiv = document.getElementById("myDiv");
window.scrollTo(0, myDiv.innerHeight);
On my Angular 6 application I just did this:
postMessage() {
// post functions here
let history = document.getElementById('history')
let interval
interval = setInterval(function() {
history.scrollTop = history.scrollHeight
clearInterval(interval)
}, 1)
}
The clearInterval(interval) function will stop the timer to allow manual scroll top / bottom.
I know this is an old question, but none of these solutions worked out for me. I ended up using offset().top to get the desired results. Here's what I used to gently scroll the screen down to the last message in my chat application:
$("#html, body").stop().animate({
scrollTop: $("#last-message").offset().top
}, 2000);
I hope this helps someone else.
I use the difference between the Y coordinate of the first item div and the Y coordinate of the selected item div. Here is the JavaScript/JQuery code and the html:
function scrollTo(event){
// In my proof of concept, I had a few <button>s with value
// attributes containing strings with id selector expressions
// like "#item1".
let selectItem = $($(event.target).attr('value'));
let selectedDivTop = selectItem.offset().top;
let scrollingDiv = selectItem.parent();
let firstItem = scrollingDiv.children('div').first();
let firstItemTop = firstItem.offset().top;
let newScrollValue = selectedDivTop - firstItemTop;
scrollingDiv.scrollTop(newScrollValue);
}
<div id="scrolling" style="height: 2rem; overflow-y: scroll">
<div id="item1">One</div>
<div id="item2">Two</div>
<div id="item3">Three</div>
<div id="item4">Four</div>
<div id="item5">Five</div>
</div>
I have a text + image side by side, and I want a function where the user can click on the image to make it bigger. I'm new to HTML/CSS so I was wondering how I can approach this. Thanks! (demo -> https://jsfiddle.net/DTcHh/6634/)
Is there any way to do this with pure HTML/CSS and no javascript?
The ones I found have been telling me to use javascript such as:
<script type="text/javascript">
function showImage(imgName) {
document.getElementById('largeImg').src = imgName;
showLargeImagePanel();
unselectAll();
}
function showLargeImagePanel() {
document.getElementById('largeImgPanel').style.visibility = 'visible';
}
function unselectAll() {
if(document.selection) document.selection.empty();
if(window.getSelection) window.getSelection().removeAllRanges();
}
function hideMe(obj) {
obj.style.visibility = 'hidden';
}
</script>
Is there a simpler way to do this in HTML/CSS?
You could use a CSS pseudo-class to change the styling when, for example, the mouse is over the image:
img:hover {
width: 300px;
height: 300px;
}
Generally, though, to add interactivity to your web pages, you will have to become acquainted with JavaScript. I don't know of any way to toggle a state (e.g. "zoomed-in") without the use of JavaScript.
You can think of the HTML as defining the content, the CSS as defining how it looks, and the JavaScript as defining how it behaves.
I'm using <a href> element along with :target css selector to show a <div> which by default is set to display:none. Problem is, that when I click on the link to show that <div>, it is automatically scrolling down my site towards that <div>.
Is there a way to stop the screen movement?
Unfortunately I am not yet proficient in anything besides CSS and HTML.
You can use event.preventDefault() to avoid this. Something like this:
$('a.yourclass').click(function(e)
{
//your code
e.preventDefault();
});
OR:
link
in the link enter:
Link here
You'll need JS anyway:
// (in jQuery)
$el.on('click', function(e) {
// find current scroll position
var pos = document.body.scrollTop || document.documentElement.scrollTop;
// let normal action propagate etc
// in the next available frame (async, hence setTimeout), reset scroll posiion
setTimeout(function() {
window.scrollTo(0, pos);
}, 1);
})
I don't know if this will flicker the screen. It might. It's a horrible hack either way.
In my Chrome, there's no flicker: http://jsfiddle.net/rudiedirkx/LEwNd/1/show/
There are two ways to tell the browser we don't want it to act:
The main way is to use the event object. There's a method
event.preventDefault().
If the handler is assigned using on (not by
addEventListener), then we can just return false from it.
Example:
Click here
or
here
This is a bit of a hack but you could use a basic css work around:
CSS only Example
#div1 {
height: 0;
overflow:hidden;
}
#div1:target {
height: auto;
margin-top: -110px;
padding-top: 110px;
}
#div2 {
background:red;
}
Click to show
<div id="div1">
<div id="div2">Content</div>
</div>
If you need it to be a little more flexible you can add some js...
More Flexible Example with JS
$('a').click(function () {
$('#div1').css({
'margin-top': 0 - $('#div1').position().top + $(window).scrollTop(),
'padding-top': $('#div1').position().top - $(window).scrollTop()
});
});
Basically you're pulling the top of div1 up with the negative margin and then pushing div2 back down with the padding, so that the top of div1 rests at the top of the window... Like I said its a hack but it does the trick.
Those links are anchor-links and by default made for those jumps :) You could use JS to prevent the default behaviour in some way. For example using jQuery:
$('a').click(function(e){e.preventDefault();});
or by default add return false; to the links
Avoid using :target all together and just use onclick event.
function myFunction()
{
document.getElementById('hiddenDiv').style.display = 'block';
return false;
}