Develop Reference

Jquery once two options have been selected from select drop down list run code

I have 2 select drop down menus. I want to to add a class once a option has been selected from both menus.
$('#size').change(function(){
if ($(this).val() > 0 ) {
$('#pizza').addClass('pizzaImage');
}
});
$('#crust').change(function(){
if ($(this).val() > 0 ) {
$('#pizza').addClass('pizzaImage');
}
});
This is my code so far, it works when I select an option from one. Basically I want to put these together I just don't know the syntax to do so. I also tried this but no results.
var size = $('#size')
var crust = $('#crust')
function image () {
if ((crust).val > 0 && (size).val > 0) {
$('#pizza').addClass('pizzaImage');
}
}

var $selects = $('#size, #crust');
$selects.change(function(){
var bothSelected = this.value && $selects.not(this).val();
$("#pizza").toggleClass("pizzaImage", bothSelected);
});

I would start by adding a common class between the two, to make it easier to bind the function to both select elements at the same time. Maybe something like pizzaOptions. Then, you could do something like this:
$(".pizzaOptions").on("change", function(){
var sizeSelected = $("#size").val() !== "";
var crustSelected = $("#crust").val() !== "";
if(sizeSelected && crustSelected){
$('#pizza').addClass('pizzaImage');
}
});

Occur if 3 button are clicked and disable other button

I have in a html page 5 button named 1,2,3,4 and 5.If 3 button are clicked the other button must be disabled.
var clicking=0;
$(document).ready(function(){
$('button').click(function(){
clicking++;
$(this).toggleClass("active");
if(clicking==3){
$('button').click(function(){
$(this).toggleClass("nothing");
})
}
})
})
I tried with this script but it don't work because all the button can be clicked.The if is ignored.
i want that only 3 of this 5 button can be clicked and the other must become disabled.

EDIT: shortened the code
I think this is what you want? Count the number of buttons with .active. If it's three or more, disable all buttons that don't have .active.
JS:
$('button').on('click', function() {
$(this).toggleClass('active');
$('button').prop('disabled',false);
if ($('.active').length >= 3) {
$('button:not(.active)').prop('disabled',true);
}
});
Here's a fiddle.

You should do something like this :
var clicking=0;
$(document).ready(function(){
$('button').click(function(){
clicking++;
$(this).toggleClass("active");
if(clicking==3){
$('button').each(function(){
if(!$(this).hasClass("active")){
$(this).addClass("inactive");
}
});
}
});
});
I didn't try it, but I think you like for something similar.

Ok i am not a master of jquery but i came up with a simple logic to implement what you want to achieve, that is disabling all the other buttons that haven't been clicked after three clicks. Here's my working code:
var count = 0;
var ids = new Array();
$(document).ready(function(){
$('button').click(function(){
ids[count] = this.id;
count++;
if(count == 3){ //three buttons clicked, now time to disable the remaining buttons
for(var i=0; i<$('button').length; i++){ //we'll check for all buttons
var id = $('button')[i].id;
var flag = true;
for(var j=0; j<ids.length; j++){ //checking all the buttons against the buttons that got clicked
if(id == ids[j])
flag = false; //button has been clicked (won't be disabled)
}
if(flag){
$("#"+id).attr("disabled", true); //disabling button
}
}
}
})
})
It's very self explanatory and i added lots of comments but still what i did is:
save the ids of buttons that got clicked, then after three clicks, disabling all the buttons who's ids don't match with the saved ids. Pretty simple.. but im sure you can make the code better as i'm not too good at jquery.
See the Working DEMO here

My sugestion is to use an array so you know witch buttons were clicked.
$(document).ready(function(){
var clickedbuttons = [];
$('button').click(function(){
$(this).toggleClass("active");
var idx = jQuery.inArray($(this).attr("id"), clickedbuttons );
if(idx == -1)
clickedbuttons.push($(this).attr("id"));
else clickedbuttons.splice(idx,1);
if(clickedbuttons.length == 3) {
$('button').each(function() {
var index = jQuery.inArray($(this).attr("id"), clickedbuttons );
if(index == -1)
$(this).attr("disabled", "disabled");
});
}
else {
$('button').each(function() {
$(this).removeAttr("disabled");
});
}
});
})
I'm assuming each button has an id. This will work as you want but you have to have an id in every button.
If you do not want to reenable change accordingly
$(document).ready(function(){
var clickedbuttons = [];
$('button').click(function() {
var idx = jQuery.inArray($(this).attr("id"), clickedbuttons );
if(idx == -1) {
clickedbuttons.push($(this).attr("id"));
$(this).toggleClass("active");
}
if(clickedbuttons.length == 3) {
$('button').each(function() {
var index = jQuery.inArray($(this).attr("id"), clickedbuttons );
if(index == -1)
$(this).attr("disabled", "disabled");
});
}
else {
$('button').each(function() {
$(this).removeAttr("disabled");
});
}
});
})

How to use zIndex on textField, so i can move to other textField when i press next in Titanium?

does anyone know how to do that? i have this code :
var txtOne = Titanium.UI.createTextField({
top:50,
zIndex:1
});
var txtTwo = Titanium.UI.createTextField({
top:100
});
var txtThree = Titanium.UI.createTextField({
top:150,
zIndex:2
});
all i want is to jump from txtOne to txtThree without go to txtTwo..
I try to use zIndex but it not works for me..
any idea?? thanks

you could put them into an array, and assign them event handlers for their return functions like this:
var textFields = [txtOne, txtTwo, txtThree];
for(vat i=0; i < textFields.length; i++)
{
//make the last text field jump to the first one when returning
if(i == textFields.length-1)
{
textFields [i].addEventListener('return', function(e)
{
textFields[0].focus();
});
}
else
{
//jump to the next text fields when returning
textFields [i].addEventListener('return', function(e)
{
textFields[i+1].focus();
});
}
}

jqTransform Select - Scroll to letter typed

I've got a form that uses jqTransform to replace the standard select boxes and radio buttons. It all works fine and dandy, except one thing that annoys me:
Since it replaces the select box with a list of links, when you type a letter to scroll it doesn't do anything. For instance, you click to open up the select, then type an S. It should scroll to the first S in the list, but nothing happens. Is there a way to re-instate this functionality? Below is the jqTransform code for the select box. I don't see a handler for this type of thing:
/***************************
Select
***************************/
$.fn.jqTransSelect = function(){
return this.each(function(index){
var $select = $(this);
if($select.hasClass('jqTransformHidden')) {return;}
if($select.attr('multiple')) {return;}
var oLabel = jqTransformGetLabel($select);
/* First thing we do is Wrap it */
var $wrapper = $select
.addClass('jqTransformHidden')
.wrap('<div class="jqTransformSelectWrapper"></div>')
.parent()
.css({zIndex: 10-index})
;
/* Now add the html for the select */
$wrapper.prepend('<div><span></span></div><ul></ul>');
var $ul = $('ul', $wrapper).css('width',$select.width()).hide();
/* Now we add the options */
$('option', this).each(function(i){
var oLi = $('<li>'+ $(this).html() +'</li>');
$ul.append(oLi);
});
/* Add click handler to the a */
$ul.find('a').click(function(){
$('a.selected', $wrapper).removeClass('selected');
$(this).addClass('selected');
/* Fire the onchange event */
if ($select[0].selectedIndex != $(this).attr('index') && $select[0].onchange) { $select[0].selectedIndex = $(this).attr('index'); $select[0].onchange(); }
$select[0].selectedIndex = $(this).attr('index');
$('span:eq(0)', $wrapper).html($(this).html());
$ul.hide();
return false;
});
/* Set the default */
$('a:eq('+ this.selectedIndex +')', $ul).click();
$('span:first', $wrapper).click(function(){$("a.jqTransformSelectOpen",$wrapper).trigger('click');});
oLabel && oLabel.click(function(){$("a.jqTransformSelectOpen",$wrapper).trigger('click');});
this.oLabel = oLabel;
/* Apply the click handler to the Open */
var oLinkOpen = $('a.jqTransformSelectOpen', $wrapper)
.click(function(){
//Check if box is already open to still allow toggle, but close all other selects
if( $ul.css('display') == 'none' ) {jqTransformHideSelect();}
if($select.attr('disabled')){return false;}
$ul.slideToggle('fast', function(){
var offSet = ($('a.selected', $ul).offset().top - $ul.offset().top);
$ul.animate({scrollTop: offSet});
});
return false;
})
;
// Set the new width
var iSelectWidth = $select.outerWidth();
var oSpan = $('span:first',$wrapper);
var newWidth = (iSelectWidth > oSpan.innerWidth())?iSelectWidth+oLinkOpen.outerWidth():$wrapper.width();
$wrapper.css('width',newWidth);
$ul.css('width',newWidth-2);
oSpan.css({width:iSelectWidth});
$ul.css({height:'420px','overflow':'hidden'});
// Calculate the height if necessary, less elements that the default height
//show the ul to calculate the block, if ul is not displayed li height value is 0
$ul.css({display:'block',visibility:'hidden'});
var iSelectHeight = ($('li',$ul).length)*($('li:first',$ul).height());//+1 else bug ff
(iSelectHeight < $ul.height()) && $ul.css({height:iSelectHeight,'overflow':'hidden'});//hidden else bug with ff
$ul.css({display:'none',visibility:'visible'});
});
};
Here is what we tried to do to implement this:
var oLinkOpen = $('a.jqTransformSelectOpen', $wrapper)
.keypress(function (e) {
$.each(myArray, function (i, l) {
var sc = l.substr(0, 1).toLowerCase();
var kc = String.fromCharCode(e.which);
if (sc == kc) {
$select[0].selectedIndex = i;
$('span:eq(0)', $wrapper).html(l);
$ul.hide();
return false;
}
});
});

Oh dang. I was missing the big picture without the code. Now I see what's going on... yeah, there's no "reinstating" the functionality since the new list of links is not actually a select box anymore. If jqTransform doesn't include a scrollable option by default I think you'll have to implement one.
If you look at their demo page, their "plain" select box works as expected (although it's hard to notice since all options start with "O", it WILL jump to the first "Option") and their styled select box does not.
Without looking deeper at the code, I suspect that means that a keypress capture is not implemented in the plug-in itself.
I'm afraid this isn't the "answer" you were probably hoping for. With any luck someone who has done this sort of thing before will hear your plea. ;-)

solution for jqTransform select keypress work link visit http://www.techapparatus.com/jqtransform-select-problem-with-keyboard-type-solution

Add the following code at the end of return this.each(function(index){ ... }); that is inside of $.fn.jqTransSelect function.
Also you have to install the scrollTo jquery plugin.
CODE:
var newChar;
$(document).bind("keydown", function (e) {
var char = String.fromCharCode(e.which);
var code = e.keyCode || e.which;
var charFound;
if( $ul.css('display') != 'none' ){
if (newChar != char){
newChar = char;
$ul.find('a').each(function(){
// Find first occurence of li that starts with letter typed
if ($(this).text().substr(0,1).toUpperCase() == char && $(this).text() != "Choose"){
charFound = true;
$('a.selected', $wrapper).removeClass('selected');
$(this).addClass('selected');
$select[0].selectedIndex = $(this).attr('index');
$($select[0]).trigger('change');
$that = $(this);
return false;
}
});
if (charFound == true){
// Scroll to selected value
$ul.scrollTo($('a.selected', $ul), 400);
}
}
//If Enter has been pressed, select the value
if(code == 13) {
$('span:eq(0)', $wrapper).html($that.html());
$ul.hide();
return false;
}
}
});

Checkbox click script - [SHIFT] check/uncheck range, [CTRL] check/uncheck all -- based on select name?

Would anyone know of a ready-made script or plugin providing:
-Shift click for check/uncheck all in range
-CTRL click to select or unselect all
That can works off the check inputs 'name' (instead of all on a page or all inside a div):
input[name='user_group[]']
input[name='record_group[]']
I've been using a couple of scripts (javascript and jQuery) but they're based on all checkboxes in a div or table and I'm not smart enough to roll my own or modify another script. Google searching on this has been a little difficult (too many common terms I think)...
Thanks Much Appreciated!

I started playing around with this script, although it's missing a CTRL+Click feature (select all/none control).
In it's original form it works against all checkboxes on a page. I changed the "$('input[type=checkbox]').shiftClick();" linke to "$("input[name='selected_employees[]']").shiftClick();" and as far as I can tell it seems to be working perfectly now against only the single checkbox group.
The only flaw (for my requirements) is there is not a CTRL+Click function to toggle check or un-check all checkboxes in the group.
<script type="text/javascript">
$(document).ready(function() {
// shiftclick: http://sneeu.com/projects/shiftclick/
// This will create a ShiftClick set of all the checkboxes on a page.
$(function() {
$("input[name='selected_employees[]']").shiftClick();
// $('input[type=checkbox]').shiftClick();
});
(function($) {
$.fn.shiftClick = function() {
var lastSelected;
var checkBoxes = $(this);
this.each(function() {
$(this).click(function(ev) {
if (ev.shiftKey) {
var last = checkBoxes.index(lastSelected);
var first = checkBoxes.index(this);
var start = Math.min(first, last);
var end = Math.max(first, last);
var chk = lastSelected.checked;
for (var i = start; i < end; i++) {
checkBoxes[i].checked = chk;
}
} else {
lastSelected = this;
}
})
});
};
})(jQuery);
});
</script>

I believe this should work!
Working demo on jsFiddle: http://jsfiddle.net/SXdVs/3/
var firstIndex = null;
$(":checkbox").click(function(e) {
$this = $(this);
if (e.ctrlKey) {
if ($this.is(":checked")) {
$("input[name='"+ $this.attr("name") +"']").attr("checked", "checked");
} else {
$("input[name='"+ $this.attr("name") +"']").removeAttr("checked");
}
} else if (e.shiftKey) {
$items = $("input[name='"+ $this.attr("name") +"']");
if (firstIndex == null) {
firstIndex = $items.index($this);
} else {
var currentIndex = $items.index($this);
var high = Math.max(firstIndex,currentIndex);
var low = Math.min(firstIndex,currentIndex);
if ($this.is(":checked")) {
$items.filter(":gt("+ low +"):lt("+ high +")").attr("checked", "checked");
} else {
$items.filter(":gt("+ low +"):lt("+ high +")").removeAttr("checked");
}
firstIndex = null;
}
}
});