Develop Reference

framework7 - How can I keep radio button choice when reloading the page?

I am making a theme changer in my framework7 app, here is the code of color changer using radio button
<ul id="bluegr">
<label class="label-radio item-content">
<input type="radio" name="color-radio" value="blue" checked>
<div class="item-inner">
<div class="item-title">Blue</div>
</div>
</label>
</ul>
<ul id="graygr">
<label class="label-radio item-content">
<input type="radio" name="color-radio" value="gray">
<div class="item-inner">
<div class="item-title">Gray</div>
</div>
</label>
</ul>
And here is theme changer
<ul>
<li>
<label class="label-radio item-content">
<input type="radio" name="layout-radio" value="layout-dark" checked>
<div class="item-inner">
<div class="item-title">Dark</div>
</div>
</label>
</li>
<li>
<label class="label-radio item-content">
<input type="radio" name="layout-radio" value="layout-white">
<div class="item-inner">
<div class="item-title">Light</div>
</div>
</label>
</li>
</ul>
And here is the javascript of making those color and theme changer work
var myApp = new Framework7();
var $$ = Dom7;
$$('input[name="color-radio"]').on('change', function () {
if (this.checked) {
$$('.view').removeClass('theme-blue theme-gray theme-lightblue');
$$('.view').addClass('theme-' + $$(this).val());
}
});
$$('input[name="layout-radio"]').on('change', function () {
if (this.checked) {
$$('.view').removeClass('layout-dark layout-white');
$$('.view').addClass(this.value);
}
});
Demo: http://qa.ftios.net/61-2
But when I try it out, it does change the color and theme but when I reload and it reverts back to default, so how can I fix this?

You haven't stored the selection anywhere so every time you reload the page the DOM will just revert back to the original state.
The simplest way would be to save the selection to localStorage and upon that module/page being called, you simply check to see if the item exists and if it does, based on its value, you would set the theme to that.

jQuery working in console but not when loading website

this is the code that is perfectly working in console:
jQuery(".cf7_wrap_com li").each(function(){
jQuery(this).find(".first_univer input").click(function(){
var label1 = jQuery(this).parent().find("label").html();
if( jQuery(this).is(":checked")) {
jQuery(this).parent().find(".first_high").show();
jQuery(".cf7_wrap_com li").not( jQuery(this).parent().parent() ).each(function(){
jQuery(this).find(".first_high").hide();
});
}
else {}
});
});
and the code below is what I saved in my custom js file and not working on website load
jQuery(document).ready(function( $ ){
jQuery(window).bind("load", function() {
jQuery(".cf7_wrap_com li").each(function(){
jQuery(this).find(".first_univer input").click(function(){
var label1 = jQuery(this).parent().find("label").html();
if( jQuery(this).is(":checked")) {
jQuery(this).parent().find(".first_high").show();
jQuery(".cf7_wrap_com li").not( jQuery(this).parent().parent() ).each(function(){
jQuery(this).find(".first_high").hide();
});
}
else {}
});
});
});
});
I also want to know if it is possible to trim this code as I think I might have added something which unnecessary.
I am using it on two radio buttons(which are inactive by default) and when a user clicks on either of them a short form opens.
Here's the image:
And this is the html:
<h1>What type of student?</h1>
<ul class="cf7_wrap_com first_use">
<li>
<div class="highschoolform first_univer"><input id="#school" name="School" type="radio" value="highschool" /> <label for="highschool">High School</label>
<div class="cf7_wrap_hs first_high">[contact-form-7 id="3552" title="High school"]</div>
</div>
</li>
<li>
<div class="unversityform first_univer"><input id="#University" name="School" type="radio" value="University" /> <label for="University">University</label>
<div class="cf7_wrap_uni first_high">[contact-form-7 id="3553" title="University"]</div>
</div>
</li>
</ul>

give the radios a class
use closest and siblings
$(function() {
$(".school").on("click",function() {
$(this).closest("ul").find(".first_high").hide();
$(this).siblings(".first_high").show();
});
});
.first_high { display:none }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h1>What type of student?</h1>
<ul class="cf7_wrap_com first_use">
<li>
<div class="highschoolform first_univer">
<input id="#school" class="school" name="School" type="radio" value="highschool" />
<label for="highschool">High School</label>
<div class="cf7_wrap_hs first_high">[contact-form-7 id="3552" title="High school"]</div>
</div>
</li>
<li>
<div class="unversityform first_univer">
<input id="#University" class="school" name="School" type="radio" value="University" />
<label for="University">University</label>
<div class="cf7_wrap_uni first_high">[contact-form-7 id="3553" title="University"]</div>
</div>
</li>
</ul>

How to find div on checkbox change event instead of hardcoding div id in jquery selector?

I want to use jquery function to find all div on checkbox change event instead of hard-coding id and class name in jquery selector.
There are 2 sections in my code with Id name section1 and section2 and so on chkall event i want to find this div id and pass this as jquery selector
This is my code:
HTML:
<div class="header">
<asp:CheckBox ID="chkAll" CssClass="checkallparent" runat="server" Text="Select All" />
</div>
<div class="abc">
<ul class="list">
<div id="section1" class="section">
<li class="carousel-border">
<input type="checkbox" id="chkParent1" class="chkParent" /> --Parent of below 2 checkboxes
</li>
<li>
<input type="checkbox" id="chkchild1" class="chkChild"/>
</li>
<li>
<input type="checkbox" id="chkchild2" class="chkChild"/>
</li>
</div>
<div id="section2" class="section">
<li class="carousel-border">
<input type="checkbox" id="chkParent2" class="chkParent" />--Parent of below 2 checkboxes
</li>
<li>
<input type="checkbox" id="chkchild3" class="chkChild" />
</li>
<li>
<input type="checkbox" id="chkchild4" class="chkChild"/>
</li>
</div>
</ul>
</div>
SCRIPT:
$(".checkallparent").change(function () {
//on this event i want to check all my checkboxes and this is how i am doing.
if ($("#chkAll").prop('checked') == true) {
//for section 1
$(this).find('input:checkbox[id^="chkParent1"]').prop('checked', true)
$(this).closest('.section').find('input:checkbox[id^="chkchild1"]').prop('checked', true);
$(this).closest('.section').find('input:checkbox[id^="chkchild2"]').prop('checked', true);
// Above is not working but when i do like below it is working
$("#section1 .chkParent").find('input:checkbox[id^="chkParent1"]').prop('checked', true)
$("#section1 .chkParent").closest('.section').find('input:checkbox[id^="chkchild1"]').prop('checked', true);
$("#section1 .chkParent").closest('.section').find('input:checkbox[id^="chkchild2"]').prop('checked', true);
//I dont want to hardcode like this instead i would like to use any jquery function
//which would find this 1st div and 2nd(for eg section1 and section2 etc... )
}
});
So can anybody tell me how to do this??

This code should help you figure that out. The first change event sets the parent checkboxes, then triggers off the change event of those parents.
The second change event handle the parent items.
$(".checkallparent").change(function () {
var checked = $(this).is(":checked");
var parentCBs = $("input[type='checkbox'].chkParent");
parentCBs.each(function(i, el) {
el.checked = checked;
$(el).trigger("change");
});
});
$("input[type='checkbox'].chkParent").change(function () {
var checked = $(this).is(":checked");
var div = $(this).closest("div");
var childCBs = div.find("input[type='checkbox'].chkChild");
childCBs.each(function(i, el) {
el.checked = checked;
});
});
Here is a working Fiddle.

Changing text when clicking radio button

I have the following code listed a number of times on the same page and I want to be able to display the data-name value in the foo-title span element when a radio button is clicked. The problem is that because .foo-title span is in the DOM several times the text is updating everywhere and not in the 1 place. I have tried several methods like .parent() .closest . prev() but cant figure it out.
The labels are styled with a background image and the text is hidden which is why I want to do the above to show the users some text information for accessibility reasons.
HTML
<div class="col-sm-4">
<p class="foo-title">
<span></span>
</p>
<ul class="foo-container-list">
<li class="foo-list-item">
<input class="foo-input" data-name="red" id="foo_id_1" name="foo_id" type="radio" value="1">
<label for="foo_id_1">red</label>
</li>
<li class="foo-list-item">
<input class="foo-input" data-name="green" id="foo_id_2" name="foo_id" type="radio" value="2">
<label for="foo_id_2">green</label>
</li>
<li class="foo-list-item">
<input class="foo-input" data-name="blue" id="foo_id_3" name="foo_id" type="radio" value="3">
<label for="foo_id_3">blue</label>
</li>
</ul>
</div>
JS
fooBar.updateFooName = function(foo) {
var fooName = foo.data('name');
if (fooName) {
$('.foo-title span').text(fooName);
}
};
$(document).ready(function() {
$("input[name=foo_id]:radio").change(function() {
fooBar.updateFooName($(this));
});
});

fooBar.updateFooName = function() {
var fooName = $(this).data('name');
if (fooName) {
$(this).closest('[class^="col-sm"]').find('.foo-title span').text(fooName);
}
};
$(document).ready(function() {
$("input[name=foo_id]:radio").change(fooBar.updateFooName);
});
FIDDLE

How to use jQuery to assign a class to only one radio button in a group when user clicks on it?

I have the following markup. I would like to add class_A to <p class="subitem-text"> (that holds the radio button and the label) when user clicks on the <input> or <label>.
If user clicks some other radio-button/label in the same group, I would like to add class_A to this radio-button's parent paragraph and remove class_A from any other paragraph that hold radio-buttons/labels in that group. Effectively, in each <li>, only one <p class="subitem-text"> should have class_A added to it.
Is there a jQuery plug-in that does this? Or is there a simple trick that can do this?
<ul>
<li>
<div class="myitem-wrapper" id="10">
<div class="myitem clearfix">
<span class="number">1</span>
<div class="item-text">Some text here </div>
</div>
<p class="subitem-text">
<input type="radio" name="10" value="15" id="99">
<label for="99">First subitem </label>
</p>
<p class="subitem-text">
<input type="radio" name="10" value="77" id="21">
<label for="21">Second subitem</label>
</p>
</div>
</li>
<li>
<div class="myitem-wrapper" id="11">
<div class="myitem clearfix">
<span class="number">2</span>
<div class="item-text">Some other text here ... </div>
</div>
<p class="subitem-text">
<input type="radio" name="11" value="32" id="201">
<label for="201">First subitem ... </label>
</p>
<p class="subitem-text">
<input type="radio" name="11" value="68" id="205">
<label for="205">Second subitem ...</label>
</p>
<p class="subitem-text">
<input type="radio" name="11" value="160" id="206">
<label for="206">Third subitem ...</label>
</p>
</div>
</li>
</ul>

DEMO: http://jsbin.com/ebaye3
since you are putting all inside P you can use it!
$(function($) {
$('.subitem-text').click(function() {
$(this).parent().find('.subitem-text').removeClass('class_A');
if ( $(this).children(':radio').is(':checked') ) // for sake! ;-)
$(this).addClass('class_A');
});
//you can also write it like this:
$('.subitem-text :radio').click(function() {
$(this).parent().parent().children().removeClass('class_A');
if ( $(this).is(':checked') )
$(this).parent().addClass('class_A');
});
});

You can do something like this:
// find all the radio inputs inside a subitem-text
$('.subitem-text input[type=radio]').bind('change', function() {
// find our parent LI
var $li = $(this).closest('li');
// remove any "class_A"
$li.find('.class_A').removeClass('class_A');
// find the subitem with the checked input and add "class_A"
$li.find('.subitem-text:has(input[checked])').addClass('class_A');
});
jsbin preview/demo

Like this:
$(':radio').click(function() {
$(this).closest('ul').find('.subitem-text').removeClass('active');
$(this).closest('.subitem-text').addClass('active');
});

There is no set way to do this since it is dependent on the html in your document. The simplest way to do this is to bind to each of your radio input elements but you can also use event delegation and bind to the div.myitem-wrapper, li, parent ul or event body tag.
Just binding click handlers to each of the input elements we are interested in:
$("div.myitem-wrapper input[type=radio]").bind('change', function (event) {
$(event.target).is(':checked').closest('p')
.addClass('class_A')
.siblings('p.subitem-text').removeClass('class_A');
});
Same thing but using event delegation to reduce the number of handlers to one. This can really speed things up if you find that you are binding to a large number of elements.
$("#id_of_the_parent_UL").bind('change', function (event) {
var $target = $(event.target);
if ($target.is('input[type=radio]:checked')) {
$target.closest('p')
.addClass('class_A')
.siblings('p.subitem-text').removeClass('class_A');
}
});
Note that it is perfectly valid to say $(this) instead of $(event.target) but it will give different results if and when you start moving to event delegation. An added advantage is that it will be easier for you or the next guy to understand the code in in two months if you go with event.target.