I thought I knew jq selectors but this is killing me. Given this html snippet (which was dynamically added to a jquery mobile form):
<li class="ld ui-li-divider ui-bar-inherit" data-role="list-divider"
role="heading">Monday
<label class="dateInput" style="display: none;">Choose a
Date to attend:<input type="text" id="dateInput1" name="dateInput1"
class="dateInput"
data-role="date" data-inline="false" style="display: none;">
</label>
</li>
<li class="hn ui-li-static ui-body-inherit ui-li-has-thumb">
<input type="checkbox" class="catChk" id="chkH10" name="chkH" data-week-
day="Monday" value="">Check1</li>
<li class="hn ui-li-static ui-body-inherit ui-li-has-thumb">
<input type="checkbox" class="catChk" id="chkH11" name="chkH" data-week-
day="Monday" value="">Check2</li>
The elements with class="dateInput" are hidden. When either Check1 or Check2 is checked I want to show the dateInput.
I've tried lots of things including:
$("#dayClassList").on("click", "input.catChk", function () {
$(this).closest(".ld").find(".dateInput").show();
}
Just using $(".dateInput").show(); works, but I have other dateInputs on the page that should stay hidden. I just want the dateInput in the closest ".ld" to be shown. The ids are dynamically created so I can't use them. I have to work with the class selectors.
I also added fiddle link: https://jsfiddle.net/dipakchavda2912/ce9mu1q2/
Let me know is it resolve your issue or not?
<li class="ld ui-li-divider ui-bar-inherit" data-role="list-divider"
role="heading">Monday
<label class="dateInput" style="display: none;">Choose a Date to attend:
<input type="text" id="dateInput1" name="dateInput1"
class="dateInput"
data-role="date" data-inline="false">
</label>
</li>
<li class="hn ui-li-static ui-body-inherit ui-li-has-thumb">
<input type="checkbox" class="catChk" id="chkH10" name="chkH" data-week-
day="Monday" value="">Check1</li>
<li class="hn ui-li-static ui-body-inherit ui-li-has-thumb">
<input type="checkbox" class="catChk" id="chkH11" name="chkH" data-week-
day="Monday" value="">Check2</li>
$(document).ready(function(){
$(".catChk").on("change", function (e) {
if(true === $(this).is(":checked")){
$.each($(".dateInput, input[id^='dateInput']"), function () {
$(this).show();
});
}else{
$.each($(".dateInput, input[id^='dateInput']"), function () {
$(this).hide();
});
}
});
});
$("#dayClassList").on("click", "input.catChk", function () {
$(".dateInput:first").show();
}
Dipak your answer put me on the right track. I have accepted your answer. I ended up kludging it by changing the id of the li.ln to include the dayName. This made it easy to target. When the checkbox is checked I grab the data-week-day value and find the matching li.ln with the same value.
I'm using jQuery 1.9.1, jQM 1.3 & knockout 2.2.1.
My html is as follows:
<div data-role="page" id="coloursView">
<div data-role="content">
<fieldset data-role="controlgroup">
<legend>Colour:</legend>
<input type="radio" name="colours" data-bind="checked: colour" id="radio-1" value="1" />
<label for="radio-1">Red</label>
<input type="radio" name="colours" data-bind="checked: colour" id="radio-2" value="2" />
<label for="radio-2">Blue</label>
<input type="radio" name="colours" data-bind="checked: colour" id="radio-3" value="3" />
<label for="radio-3">Green</label>
</fieldset>
</div><!--/content -->
</div><!--/page -->
My view model is also very simple:
function ColoursViewModel() {
this.template = "coloursView";
this.colour = ko.observable("1");
this.label = ko.observable(); // custom binding
}
Now, i would like to get the description of the selected colour, not the value.
It seems to me, that i need a custom binding, like this one:
ko.bindingHandlers.label = {
update: function(element, valueAccessor) {
var value = ko.utils.unwrapObservable(valueAccessor());
$("radio", element).filter(function(el) { return $(el).text() === value; }).prop("checked", "checked");
}
};
But i'm not able to get the text of the related label - the label-for text.
Someone could help?
Thanks in advance
Update
Here is another approach where to find only :checked items and remove white-space in text.
Checkbox
$('input[type=checkbox]').each(function () {
if ($(this).is(':checked')) {
var checkbox = $(this).prev('label').text();
alert('Checkbox: ' + checkbox.replace(/\s+/g, ' '));
}
});
Radio
$('input[type=radio]').each(function () {
if ($(this).is(':checked')) {
var radio = $(this).prev('label').text();
alert('Radio: ' + radio.replace(/\s+/g, ' '));
}
});
Updated Demo
Checkbox
$('div.ui-checkbox').find('span.ui-btn-text').text();
Radio
$('div.ui-radio').find('span.ui-btn-text').text();
Sorry if i answer myself, but i think i got it. At least for radio inputs.
Now, i have a custom binding handler at fieldset level, to keep the markup clean and more readable, as i can:
<fieldset data-role="controlgroup" id="front-colours" data-bind="frontColourLabel: frontColour">
<legend>Front Colour: <span data-bind="text: frontColourDescription"></span> (Value: <span data-bind="text: frontColour"></span>)</legend>
<input type="radio" name="front-colours" data-bind="checked: frontColour" id="fc-radio-1" value="red" />
<label for="fc-radio-1">Red</label>
<input type="radio" name="front-colours" data-bind="checked: frontColour" id="fc-radio-2" value="blue" />
<label for="fc-radio-2">Blue</label>
<input type="radio" name="front-colours" data-bind="checked: frontColour" id="fc-radio-3" value="green" />
<label for="fc-radio-3">Green</label>
</fieldset>
this is the binding handler i come up:
ko.bindingHandlers.frontColourLabel = {
update: function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
ko.utils.unwrapObservable(valueAccessor());
var id = $('input:radio[name='+element.id+']:checked').prop("id");
var radioText = $('label[for=' + id + ']').text();
viewModel.frontColourDescription(radioText);
}
};
the only tricky part here, is that the id of the fieldset is equal to the name of the radio-group, as it's easy to filter out what radio-group i want to address.
WORKING EXAMPLE: http://jsfiddle.net/h7Bmb/1/
I try now to get the checkbox part to work. Someone can help?
My real desire is to create a selectable tree for JQM (with 3 values for each element). I tried to do with nested collapsible divisions, and this works fine. But when I tried to add the 3 radios on each collapsible bar, the events don't fire properly.
I think the collapse/expand event hooks the click event of the radios. The effect is when you click the radios, the collapsible is expanded and the radio is not checked.
<div data-role="collapsible" data-theme="b" data-content-theme="d" id="accordion1">
<h3>60
<fieldset data-role="controlgroup" data-type="horizontal" data-mini="true" >
<input type="radio" name="selcrit-CLP-60" id="selcrit-CLP-60-asign" value="60-asign">
<label for="selcrit-CLP-60-asign">Asign</label>
<input type="radio" name="selcrit-CLP-60" id="selcrit-CLP-60-omit" value="60-omit">
<label for="selcrit-CLP-60-omit">Omit</label>
<input type="radio" name="selcrit-CLP-60" id="selcrit-CLP-60-nothing" value="60-nothing">
<label for="selcrit-CLP-60-nothing">Nothing</label>
</fieldset>
</h3>
<div stylee="margin: 0 10px;">
Content for 60
</div>
Here is the jsfiddle with the example: http://jsfiddle.net/Hz8Ef/
Any idea? Can I do in other way?
Solved!
$(document).ready(function() {
$("div .ui-radio").click(
function(e){
var radioId = $(this).children(":first").attr('name');
$('input[name=' + radioId + ']').checkboxradio( "refresh" );
e.stopPropagation();
}
);
});
Here the complete solution: http://jsfiddle.net/VuaQg/1/
Ok so this is beginning to drive me insane. I have for several hours now searched and searched, and every single solution doesnt work for me. So yes, this question might be redundant, but i cant for the life of me get solutions to work.
I have a bunch of checkboxes being generated by a jquery template that is databound via knockout.js. However, it turns up unstyled. Afaik, it is something about jquery mobile does the styling before knockout renderes the template, so it ends up unstyled.
I have tried numerous methods to no avail, so i hope someone here can see what i am doing wrong.
(i am using jquery mobile 1.2.0 , jquery 1.8.2 and knockout 2.2.1)
This is the scripts:
<script type="text/javascript">
jQuery.support.cors = true;
var dataFromServer = "";
// create ViewModel with Geography, name, email, frequency and jobtype
var ViewModel = {
email: ko.observable(""),
geographyList: ["Hovedstaden","Sjælland","Fyn + øer","Nordjylland","Midtjylland","Sønderjylland" ],
selectedGeographies: ko.observableArray(dataFromServer.split(",")),
frequencySelection: ko.observable("frequency"),
jobTypes: ["Kontor (administration, sekretær og reception)","Jura","HR, Ledelse, strategi og udvikling","Marketing, kommunikation og PR","Handel og service (butik, service, værtinde og piccoline)","IT","Grafik og design","Lager, chauffør, bud mv.","Økonomi, regnskab og finans","Kundeservice, telefoninterview, salg og telemarketing","Sprog","Øvrige jobtyper"],
selectedJobTypes: ko.observableArray(dataFromServer.split(",")),
workTimes: ["Fulltid","Deltid"],
selectedWorkTimes: ko.observableArray(dataFromServer.split(","))
};
// function for returning checkbox selection as comma separated list
ViewModel.selectedJobTypesDelimited = ko.dependentObservable(function () {
return this.selectedJobTypes().join(",");
}, ViewModel);
var API_URL = "/webapi/api/Subscriptions/";
// function used for parsing json message before sent
function omitKeys(obj, keys) {
var dup = {};
var key;
for (key in obj) {
if (obj.hasOwnProperty(key)) {
if (keys.indexOf(key) === -1) {
dup[key] = obj[key];
}
}
}
return dup;
}
//Function called for inserting new subscription record
function subscribe() {
if($("#jobmailForm").valid()=== true){
//window.alert("add subscriptiooncalled");
var mySubscription = ko.toJS(ViewModel);
//var json = JSON.stringify(mySubscription);
var jsonSmall = JSON.stringify(omitKeys(mySubscription, ['geographyList','jobTypes','selectedJobTypesDelimited','workTimes']));
//window.alert(jsonSmall);
$.ajax({
url: API_URL,
cache: false,
type: 'POST',
contentType: 'application/json',
data: jsonSmall,
success: function (data) {
window.alert("success");
},
error: function (error) {
window.alert("ERROR STATUS: " + error.status + " STATUS TEXT: " + error.statusText);
}
});
}
}
function initializeViewModel() {
// Get the post from the API
var self = this; //Declare observable which will be bind with UI
// Activates knockout.js
ko.applyBindings(ViewModel);
}
// Handle the DOM Ready (Finished Rendering the DOM)
$("#jobmail").live("pageinit", function() {
initializeViewModel();
$('#jobmailDiv').trigger('updatelayout');
});
</script>
<script id="geographyTmpl" type="text/html">
<input type="checkbox" data-role="none" data-bind="attr: { value: $data }, attr: { id: $data }, checked: $root.selectedGeographies" />
<label data-bind="attr: { for: $data }"><span data-bind="text: $data"></span></label>
</script>
<script id="jobTypeTmpl" type="text/html">
<label><input type="checkbox" data-role="none" data-bind="attr: { value: $data }, checked: $root.selectedJobTypes" /><span data-bind="text: $data"></span></label>
</script>
Note, "jobmail" is the surrounding "page" div element, not shown here. And this is the markup:
<div data-role="content">
<umbraco:Item field="bodyText" runat="server"></umbraco:Item>
<form id="jobmailForm" runat="server" data-ajax="false">
<div id="jobmailDiv">
<p>
<label for="email">Email</label>
<input type="text" name="email" id="email" class="required email" data-bind="'value': email" />
</p>
<fieldset data-role="controlgroup" data-mini="true" data-bind="template: { name: 'geographyTmpl', foreach: geographyList, templateOptions: { selections: selectedGeographies } }">
<input type="checkbox" id="lol" />
<label for="lol">fkfkufk</label>
</fieldset>
<fieldset data-role="controlgroup" data-mini="true">
<p data-bind="template: { name: 'jobTypeTmpl', foreach: jobTypes, templateOptions: { selections: selectedJobTypes } }"></p>
</fieldset>
<fieldset data-role="controlgroup" data-mini="true">
<input type="radio" id="frequency5" name="frequency" value="5" data-bind="checked: frequencySelection" /><label for="frequency5">Højst 5 gange om ugen</label>
<input type="radio" id="frequency3" name="frequency" value="3" data-bind="checked: frequencySelection" /><label for="frequency3">Højst 3 gange om ugen</label>
<input type="radio" id="frequency1" name="frequency" value="1" data-bind="checked: frequencySelection" /><label for="frequency1">Højst 1 gang om ugen</label>
</fieldset>
<p>
<input type="button" value="Tilmeld" class="nice small radius action button" onClick="subscribe();">
</p>
Tilbage
</div>
</form>
Alternate method of invoking the restyling (doesnt work either):
$(document).on('pagebeforeshow', '#jobmail', function(){
// Get the post from the API
var self = this; //Declare observable which will be bind with UI
// Activates knockout.js
ko.applyBindings(ViewModel);
});
// Handle the DOM Ready (Finished Rendering the DOM)
$("#jobmail").live("pageinit", function() {
$('#jobmail').trigger('pagecreate');
});
Use a custom binding (Knockout) to trigger jQuery Mobile to enhance the dynamically created content produced by Knockout.
Here is a simple custom binding:
ko.bindingHandlers.jqmEnhance = {
update: function (element, valueAccessor) {
// Get jQuery Mobile to enhance elements within this element
$(element).trigger("create");
}
};
Use the custom binding in your HTML like this, where myValue is the part of your view model that changes, triggering the dynamic content to be inserted into the DOM:
<div data-bind="jqmEnhance: myValue">
<span data-bind="text: someProperty"></span>
My Button
<input type="radio" id="my-id" name="my-name" value="1" data-bind="checked: someOtherProperty" /><label for="my-id">My Label</label>
</div>
In my own case, myValue was part of an expression in an if binding, which would trigger content to be added to the DOM.
<!-- ko if: myValue -->
<span data-bind="jqmEnhance: myValue">
<!-- My content with data-bind attributes -->
</span>
<!-- /ko -->
Every dynamically generated jQuery Mobile content must be manually enhanced.
It can be done in few ways, but most common one can be done through the jQuery Mobile function .trigger( .
Example:
Enhance only page content
$('#page-id').trigger('create');
Enhance full page (header + content + footer):
$('#page-id').trigger('pagecreate');
If you want to find more about this topic take a look my other ARTICLE, to be more transparent it is my personal blog. Or find it HERE.
I have got my HTML5 project a bit further along - I have one last stumbling block which is: I have set a variable and have three buttons which give it a different value - each value should relate to a different mp3 file, I want my big 'play' button to play whichever mp3 ( variable) has been selected. I then want the button to toggle off or stop playing when clicked again.
I'm out of my depth a bit ( on tip toes) so any help/advice would be appreciated. I have gone through the Jquery and html5 audio notes but can't find anything too helpful ( that I can understand anyway!)
Thanks for any help,
Jim
Live Demo:
http://jsfiddle.net/CZLcR/29/
JS
var selectedMP3;
$('input[name=mp3_option]').change(function() {
selectedMP3 = $('input[name=mp3_option]:checked').val();
});
$('#controlButton').click(function() {
var $this = $(this);
if($this.text() == 'Play') {
$this.children().children().text('Pause');
} else {
$this.children().children().text('Play');
alert('Stopped playing song: '+selectedMP3);
$('input[name=mp3_option]').attr('checked',false).checkboxradio('refresh');
}
});
HTML
<div data-role="page" id="home">
<div data-role="content">
<div data-role="fieldcontain">
<fieldset data-role="controlgroup">
<legend>Choose a song:</legend>
<input type="radio" name="mp3_option" id="radio-choice-1" value="song-1.mp3" />
<label for="radio-choice-1">MP3 1</label>
<input type="radio" name="mp3_option" id="radio-choice-2" value="song-2.mp3" />
<label for="radio-choice-2">MP3 2</label>
<input type="radio" name="mp3_option" id="radio-choice-3" value="song-3.mp3" />
<label for="radio-choice-3">MP3 3</label>
<input type="radio" name="mp3_option" id="radio-choice-4" value="song-4.mp3" />
<label for="radio-choice-4">MP3 4</label>
</fieldset>
</div>
Play
</div>
</div>