I am trying to add the class "current" to whatever radio option is currently selected. I can use
onClick="document.getElementById('volunteering').class += 'current';"
However, this will indeed add the class, but it sticks when you select another radio button (because it's on each button). Any thoughts on how to implement it across all radio buttons?
Here is the code I am using:
<form>
<ul>
<input type="radio" name="category" id="volunteering" value="volunteering"><li class="conversation">
<a href="#" onClick="document.getElementById('volunteering').checked = true;" >Volunteering</a>
</li>
<input type="radio" name="category" value="cityproblems" id="cityproblems"><li class="conversation">
<a href="#" onClick="document.getElementById('cityproblems').checked = true;" >City Problems</a>
</li>
<input type="radio" name="category" value="safety" id="safety"><li class="conversation">
Safety
</li>
</form>
You need to first remove that class from all radio buttons, then add it back to the clicked one. Define a function that does this by receiving the id as a parameter, and bind that to the onclick.
function selectRadioClass(radioId) {
// Note - there are more clever ways, like arrays and loops
// for this, but if it's only 3, this is fine
document.getElementById('volunteering').className = '';
document.getElementById('cityproblems').className = '';
document.getElementById('safety').className = '';
// Then add it back to the node passed in by id
document.getElementById(radioId).className = 'current';
// And check the button
document.getElementById(radioId).checked = true;
}
Then bind each radio button's onclick using:
Safety
There are 2 solutions:
Use CSS3 :checked selector
form input:checked {
/* your style rules here. */
/* No more scripting needed. */
}
http://www.quirksmode.org/css/enabled.html
Use A global function for this purpose.
// check Michael's solution.
Use CSS pseudo selectors and forget the JavaScript. There is one for element:checked.
http://css-tricks.com/pseudo-class-selectors/
Related
I have the following Material Design Lite switch in my HTML and is looking for some javascript help.
<label class="mdl-switch mdl-js-switch mdl-js-ripple-effect" for="switch-1">
<input type="checkbox" id="switch-1" class="mdl-switch__input" checked />
<span class="mdl-switch__label">USEREMAIL Subscribed</span>
</label>
Upon clicking the switch, I'd like to add:
Toggle functionality to update the checked to unchecked - like on and off switch, but is looking for JavaScript help here.
I would like to really have values of "subscribed" and "unsubscribed" as text that is displayed next to it as shown (but hardcoded in the html). Is this feasible to change dynamically?
Thanks for your time. I did find this as a reference, but it was using CheckBox.
If you refer to the mdl's source code, you will find that the check and uncheck functions are bound with label tag.
You can specify an id to label like below:
<label id="check" class="mdl-switch mdl-js-switch mdl-js-ripple-effect" for="switch-1">
<input type="checkbox" id="switch-1" class="mdl-switch__input"/>
<span class="mdl-switch__label">Subscribed</span>
</label>
<input type="button" value="test switch" id="btn"/>
MDL natively supports on/off status switch on button click. You can also control the status by another button.
$("#btn").click(function() {
if($('#check').is('.is-checked')) {
$('#check')[0].MaterialSwitch.off();
}
else {
$('#check')[0].MaterialSwitch.on();
}
});
To update the switch label dynamically, the code can be put like below. Bind the input's change event on page load and update label text if the on/off status changes.
//toggle label
$('#check input').change(function(){
if($(this).is(':checked'))
$(this).next().text("Unsubscribed");
else
$(this).next().text("Subscribed");
});
Here is the jsFiddle code. The answer comes a bit late for you but I hope it still helps.
Referring to the code in above question:
var myCheckbox = document.getElementById('switch-1');
myCheckbox.parentElement.MaterialSwitch.off();
…
myCheckbox.parentElement.MaterialSwitch.on();
Below code maybe solve your problem:
var isChecked = $('#switch-1').is(':checked');
if(isChecked) {
alert("subscribed");
} else {
alert("not subscribed");
}
<input type="checkbox" data-related-item="title1">
<span class="caption">Title</span>
<div class="hidden">
<h2>Title</h2>
<input type="text" id="title1">
<span class="caption">Lorem</span>
</div>
<hr>
<input type="checkbox" data-related-item="title2" checked>
<span class="caption">Title</span>
<div class="hidden">
<h2>Title</h2>
<input type="text" id="title2">
<span class="caption">Lorem</span>
</div>
Javascript
function evaluate(){
var item = $(this);
var relatedItem = $("#" + item.attr("data-related-item")).parent();
if(item.is(":checked")){
relatedItem.fadeIn();
}else{
relatedItem.fadeOut();
}
}
$('input[type="checkbox"]').click(evaluate).each(evaluate);
This was about this post: if check box is checked display div
I would like to ask how do I use this code but every time you click another checkbox it hides the previous div and opens a new one. Just showing one div/content at a time instead of showing both open. Thanks.
DEMO: http://jsfiddle.net/zgrRd/5/
You must use change instead of click function and inside evaluate function, add the following line at the start
$('input[type="checkbox"]').not($(this)).prop('checked',false).trigger('change');
Watch here fiddle
If I understand you correctly, you want only one <div> open at a time, which should correlate to a checkbox. I interpret this, that you also only checkbox checked at a time, so all other checkboxes wold need to be unchecked.
Solution 1: Use radio buttons
Solution 2: Uncheck all checkboxes and re-check the current one.
The solution for showing the <div>s is based on solution 2. Just hide all <div>s first and then show your related <div>. Give all your <div>s a certain class (e.g. class="toggling") or name to be used as a selector for closing all.
$('input[type="checkbox"]').on("click", function() {
var item = $(this);
var relatedItem = $("#" + item.attr("data-related-item")).parent();
$('.toggling').fadeOut(); //hide all
relatedItem.FadeIn(); //show the current one
});
I have horizontal jQuery checkbox. It should display some text when it is clicked and remove the text when it is clicked again and unchecked. However, when i first load the page and click on the box nothing happens. Then when i click it again to uncheck the text appears. It seems the opposite behaviour of what i expect is going on. Here is the code:
(I can solve this problem by simply inverting the boolean sign but i want to understand why this is happening).
<form>
<fieldset data-role="controlgroup" data-type="horizontal">
<legend>Select your type of Restaurant:</legend>
<input type="checkbox" name="checkbox-h-2a" id="checkbox-h-2a">
<label for="checkbox-h-2a" onclick="onfilter()">Vegetarian</label>
</fieldset>
</form>
<script>
function onfilter(){
if ($("#checkbox-h-2a").prop('checked')){
document.getElementById("hehe").innerHTML = "Yo there";
}
if (!($("#checkbox-h-2a").prop('checked'))){
document.getElementById("hehe").innerHTML = "";
}
}
</script>
You're already loading jQuery , so just use jQuery for everything - it is much easier , works better, really the only downside to jQUery is having to load it - and you're already doing that. So I would suggest using something like this:
$(function(){
$(document).on('click', '#checkbox-h-2a', function(){
if ( $(this).is(':checked') ) {
// Do stuff
}
else{
//Do stuff
}
});
});
Also, I hope you are actually closing your input element in your HTML , and that this is just a typo in your question
<input type="checkbox" name="checkbox-h-2a" id="checkbox-h-2a"
try:
<fieldset data-role="controlgroup" data-type="horizontal">
<legend>Select your type of Restaurant:</legend>
<label for="checkbox-h-2a" >Vegetarian
<input type="checkbox" name="checkbox-h-2a" id="checkbox-h-2a" />
</label>
</fieldset>
see how the label goes around the checkbox? also you can get rid on the inline function in HTML with the jQuery I provided
EDIT:
2 problems - one you selectd jQuery 1.6 , to you .on() you need a newer version , if you must use old jQuery let me know ,
the other problem is that all jQuery code must be wrapped in
$(document).ready(function(){
/// code here
});
or for short:
$(function(){
// code here
});
The problem is at the time of clicking on the label, the checkbox's checked has not been changed, so you have to toggle the logic (although it looks weird) or attach the handler to the onchange event of the checkbox input instead:
<!-- add onchange event handler -->
<input type="checkbox" name="checkbox-h-2a" id="checkbox-h-2a"
onchange="onfilter()"/>
<!-- and remove the click handler -->
<label for="checkbox-h-2a">Vegetarian</label>
Demo.
It involves how a label works, when clicking on the label, it looks for the attached input element via the for attribute and trying to change the appropriate property (checked for checkbox, radio, ...) or focusing the element (for textbox fields). So at the clicking time, it processes/calls your handler first. Hence the problem.
Note that this answer just fixes the issue, not trying to improve your code.
This is a bit of a long question so please bear with me guys.
I needed to make a form submit automatically when a checkbox was ticked. So far I have the code below and it works perfectly. The form must submit when the check box is either checked or unchecked. There is some PHP that reads a database entry and shows the appropriate status (checked or unchecked) on load.
<form method="post" id="edituser" class="user-forms" action="--some php here--">
<input class="lesson" value="l101" name="flesson" type="checkbox" />
</form>
<script>
$('.lesson').change(function() {
$('.user-forms').submit();
});
</script>
However, when I introduce a fancy checkbox script which turns checkboxes into sliders it no longer works. The checkbox jQuery script is below:
<script src="'.get_bloginfo('stylesheet_directory').'/jquery/checkboxes.js"></script>
<script type="text/javascript" charset="utf-8">
$(document).ready(function(){
$("input[type=checkbox]").tzCheckbox({labels:["Enable","Disable"]});
});
</script>
The contents of the checkboxes.js called to above is as follows:
(function($){
$.fn.tzCheckbox = function(options){
// Default On / Off labels:
options = $.extend({
labels : ['ON','OFF']
},options);
return this.each(function(){
var originalCheckBox = $(this),
labels = [];
// Checking for the data-on / data-off HTML5 data attributes:
if(originalCheckBox.data('on')){
labels[0] = originalCheckBox.data('on');
labels[1] = originalCheckBox.data('off');
}
else labels = options.labels;
// Creating the new checkbox markup:
var checkBox = $('<span>',{
className : 'tzCheckBox '+(this.checked?'checked':''),
html: '<span class="tzCBContent">'+labels[this.checked?0:1]+
'</span><span class="tzCBPart"></span>'
});
// Inserting the new checkbox, and hiding the original:
checkBox.insertAfter(originalCheckBox.hide());
checkBox.click(function(){
checkBox.toggleClass('checked');
var isChecked = checkBox.hasClass('checked');
// Synchronizing the original checkbox:
originalCheckBox.attr('checked',isChecked);
checkBox.find('.tzCBContent').html(labels[isChecked?0:1]);
});
// Listening for changes on the original and affecting the new one:
originalCheckBox.bind('change',function(){
checkBox.click();
});
});
};
})(jQuery);
There is also some CSS that accompanies this script but I am leaving it out as it is not important.
Finally, this is what the jQuery script does to the checkbox:
<input id="on_off_on" class="lesson" value="lesson11-1" name="forexadvanced[]" type="checkbox" style="display: none; ">
<span classname="tzCheckBox checked" class=""><span class="tzCBContent">Disable</span><span class="tzCBPart"></span></span>
When the checkboxes are changed into sliders the .change() function no longer detects the change in the checkboxes status.
How can I make the .change() function work or is their an alternative function I can use?
This plugin changes your checkboxes to span elements and hides the actual checkboxes themselves. Thus, when you click on them, nothing happens. Since span elements don't have onchange events, you can't bind change events to these.
However, span elements do have click events, meaning that you could instead bind a click event to the generated spans, using Firebug or Chrome Debugger to locate the correct element to bind to.
Your click-handler can then take the same action your change event would normally take if the plugin weren't being used.
Here is an example:
HTML (Source):
<!-- This is a checkbox BEFORE running the code that transforms the checkboxes
into sliders -->
<li>
<label for="pelda1">Opció 1:</label>
<input class="pelda" type="checkbox" id="pelda1" name="pelda1" />
</li>
HTML (Generated From Chrome Debugger):
NOTE: This is the generated HTML after running the JavaScript that converts checkboxes to sliders! You must bind your click event AFTER this code is generated.
<li>
<label for="pelda1">Option 1:</label>
<!-- The hidden checkbox -->
<input class="pelda" type="checkbox" id="pelda1" name="pelda1" style="display: none; " />
<!-- the "checked" class on the span gets changed when you toggle the slider
if it's there, then it's checked. This is what you're users are actually
changing.
-->
<span class="tzCheckBox checked">
<span class="tzCBContent">active</span>
<span class="tzCBPart"></span>
</span>
</li>
JavaScript:
NOTE: This must be bound AFTER converting the checkboxes to sliders. If you try it before, the HTML won't yet exist in the DOM!
$('.tzCheckBox').click(function() {
// alert the value of the hidden checkbox
alert( $('#pelda1').attr("checked") );
// submit your form here
});
Listen for change like this:
$('.lesson').bind("tzCheckboxChange",function() {
$('.user-forms').submit();
});
Modify the plugin by adding the line:
$(originalCheckBox).trigger("tzCheckboxChange");
after
checkBox.find('.tzCBContent').html(labels[isChecked?0:1]);
This way, anytime you use this plugin, you can listen for tzCheckboxChange instead of just change. I don't really know what's going on with the plugin, but seems kinda funky for it to be listening for a change event when it would only be fired through trigger (unless it doesn't hide the original checkbox).
What's a good pattern for adding additional data to an HTML element? For example, I'd like to link a checkbox to HTML I'd like to hide when the checkbox is unchecked. Like the for attribute of a label element, I want to specify the linkage in markup so I can write a simple, generic script to iterate through all checkboxes and hook up a jquery event handler to do the hiding/showing.
For example, in this HTML:
<input type="checkbox" id="showFoo" />
<div id="foo">
Some HTML here. Hide this when the checkbox is unchecked.
</div>
What's a good to let my script know that #showFoo is related to #foo? Ideally something that doesn't make my HTML non-validating or and doesn't require me to use a specific naming convention for IDs. Extra credit if it makes my script more efficient.
use a data-[key] attribute to identify what #showFoo should control
example jsfiddle
HTML:
<input type="checkbox" id="showFoo" data-toggles="foo" />
<div id="foo">
Some HTML here. Hide this when the checkbox is unchecked.
</div>
jQuery:
$('#showFoo').change(function() {
$('#' + $(this).data('toggles')).toggle();
});
This seems like a perfect case for data elements.
<input type="checkbox" id="showFoo" data-relateddiv="foo" />
Then in an event handler on the checkboxs:
$('#' + $(this).data("relateddiv")).show();
You can use the "rel" attribute
<input type="checkbox" id="showFoo" rel="foo" />
$('#showFoo').click(function(){
var element_id = $(this).attr('rel');
var element = $('#'+element_id);
if(element.is(':hidden')){
element.slideDown();
//element.show();
}
else{
element.slideUp();
//element.hide();
}
});
I use this currently
element.each(function(i, e) {
var checked = $(e).prop('checked'),
foo = */Relationship betweeen element and foo*/;
foo .toggleClass('invisibleClass', checked)
.toggleClass('visibleClass', !checked);
});
in case you have multiple foos and elements (you have to define the relationship between them first)
Run it on the event of your choice
Try below
if (checkboxIsChecked) {
foo.visibility:visible;
} else {
foo.visibility:hidden;
}