Develop Reference

show / hide menu on button click

I'm new to jQuery and am trying to make a menu for a catering business and figured using jQuery would be the easiest way to implement what I am trying to do.
There is a catering menu and a dessert menu, I want to have them both hidden when the page loads but when a button, either catering or dessert, is clicked, show the appropriate menu. i can get it to hide them, but not sure how to get them show show on the button press.
Thanks!
var $cateringMenu = $("#cateringMenu");
var $cateringButton = $("#cateringButton");
var $dessertButton = $("#dessertButton");
var $dessertMenu = $("#dessertMenu");
function hideMenu(){
$cateringMenu.hide();
}
function showCateringMenu(){
if($cateringButton.click() ){
$cateringMenu.show();
}
}
hideMenu();
showCateringMenu();

Check out the documentation for the jQuery click method here: https://api.jquery.com/click/
This method will set up an event handler for the particular element. You can use it like this:
$cateringButton.click(function() {
$cateringMenu.show();
});
That will only cover half of the situations (when the menu is hidden). You'll have to add some additional logic that checks if the menu is hidden or shown and acts accordingly (or might want to check out the toggle method here: http://api.jquery.com/toggle/), but hopefully this is enough for you to continue!

Try it this way:
$(document).ready(function(){
$("#cateringMenu").hide();
$("#cateringButton").click(function(){
$("#cateringMenu").show();
});
});

The toggle() jQuery method was designed for exactly this:
jQuery:
<script>
$(document).ready(function(){
$("h1").click(function(){
$("p").toggle();
});
});
</script>
HTML:
<h1>Desert menu</h1>
<p>lots of deserts</p>
The documentation here explains its use pretty well. It takes care of the visibility checking you would otherwise have to do.

jQuery Checkbox/Target _Blank

I have the following jQuery on my website:
$(function() {
$('#newtab').toggle(function() {
$('a').attr('target', '_blank');
},
function() {
$('a').removeAttr('target');
});
});
The code is for a checkbox that toggles the target of links on my page (when checked, links open in a new tab (target="_blank"), otherwise, they open in the same page.
I have two issues:
I want to make it so only links in a particular div are affected by the toggle (I essentially just don't want links in my menu to be affected by it).
When clicking the checkbox, the check is never shown for some reason. I have <input type="checkbox" id="newtab" /><label for="newtab">Open links in new tab</label>
on my page which shows the checkbox (unselected). When I click on it, it changes the target attribute, but the checkbox never appears to be selected; it still shows the empty box. Clicking the checkbox again removes the target attribute as expected.
Thanks.

This should solve your problem: http://jsfiddle.net/UJMgQ/2/
$(function () {
$('#newtab').click(function () {
if ($(this).is(':checked')) {
$('#wanted a').attr('target', '_blank');
} else {
$('#wanted a').removeAttr('target');
}
});
});
To limit the a's that are selected just change #wanted to what ever div(container) the a's you want are in. It works like a css selector.

For part 1: $('.divYouWant a').attr(...) will limit it, just like a CSS selector would.
For part 2: According to the docs of toggle() "The implementation also calls .preventDefault() on the event, so links will not be followed and buttons will not be clicked if .toggle() has been called on the element.". If you don't want that, either use .click(), or just set $('#newtab').checked equal to one in the selected function, and 0 for the unselected function.

Try: $('#mydiv').find('a').attr('target', '_blank');
I think toggle wants you to return true to make the click event propagate to the checkbox. Not sure, but checking the docs may be in order here...
Nevermind, docs say that toggle prevents propagation. Perhaps use something like $.change() instead, and use the value of the checked property to set the values you want.

Is there any special jQuery that would execute two different set of codes for one element?

I have code that lets me to show an element on click of one element and hide it on click of another. Code looks like:
$('.downloads').hide()
$('.downloads').css({visibility:'visible'})
var Dshow=false;
$('.allLink').click(function() {
if(!Dshow){
Dshow=true;
$(".downloads").fadeIn("fast");
$('#footer2').html($('#footer1').html());
$('#footer1').html('');}
});
$('.hideAllLink').click(function() {
if(!!Dshow){
Dshow=false;
$(".downloads").fadeOut("fast");
$('#footer1').html($('#footer2').html());
$('#footer2').html('');}
});
I want $('.allLink').click(function() to have 2 states - on first click it shall show ".downloads" and on second click hide.
How to do such thing with jQuery?

You can use .toogle(). This method will hide element if it's visible, or make it visible if it's hidden.
$('.allLink').click(function()) {
$('.downloads').toggle();
}

I think what you are looking for is a toggler: Use of jQuery toggle function
Use
$( "#idofthebutton" ).toggle(
function() {
/// hide the link
$(".downloads").fadeOut("fast");
}, function() {
///show the link
$(".downloads").fadeIn("fast");
}
);
This will work automatically to hide and show the links....
Note: In this case keep the links visible at first place. If you don't want that then change the order of the functions inside the .toggle

Making JQuery horizontal accordion close on click

Example: http://vincent-massaro.com/map/
Currently, the script allows you to click on a piece of the accordion to open it, but it is set to close on mouseleave. When I set the mouseleave to .click, it gets confused and doesn't know what state it is in. I want to make it so that you can click to open it, and click to close it, instead of mouseleave. The code controlling this is below, and the full script is in haccordion.js linked in the page source. If someone could help me modify this script, I would be very grateful! Thanks in advance.
$target.click(function(){
haccordion.expandli(config.accordionid, this)
config.$lastexpanded=$(this)
})
if (config.collapsecurrent){ //if previous content should be contracted when expanding current
$target.mouseleave(function(){
$(this).stop().animate({width:config.paneldimensions.peekw}, config.speed)
})
}

try use this
$('.accordion-item-header').click(function() {
var item = $(this).parent().find('.accordion-item-body');
item.toggleClass('open').animate({
width:item.hasClass('open') ? 0: 100
}, 100).toggleClass('open');
});

You could set a boolean variable to represent whether the accordion is open or not and just check it on click. (You'll need to toggle the variable's state on click too)
Edit:
Ok try this. Set a boolean global variable (outside the click event) like this:
var accordion_expanded = false;
Then within your click event do something like this: (I haven't tested this so you might have to massage it a bit to fit your circumstance)
In the function where you expand your accordion put this:
accordion_expanded = true;
And in the function where you contract your accordion do a
if(accordion_expanded == true){
//Contract accordion code goes here
accordion_expanded == false;
}
Good Luck!

How to stop title attribute from displaying tooltip temporarily?

I've got a popup div showing on rightclick (I know this breaks expected functionality but Google Docs does it so why not?) However the element I'm showing my popup on has a "title" attribute set which appears over the top of my div. I still want the tooltip to work but not when the popup is there.
What's the best way to stop the tooltip showing while the popup is open/openning?
Edit: I am using jQuery

With jquery you could bind the hover function to also set the title attribute to blank onmouseover and then reset it on mouse out.
$("element#id").hover(
function() {
$(this).attr("title","");
$("div#popout").show();
},
function() {
$("div#popout").hide();
$(this).attr("title",originalTitle);
}
);

Here is another example of how it can be done by using data for value storage and prop for value assigning
$('[title]').on({
mouseenter : function()
{
$(this).data('title', this.title).prop('title', '');
},
mouseleave: function()
{
$(this).prop('title', $(this).data('title'));
}
});

I think setting to blank space and when the popup closes, setting again the proper text. I think this is the easiest way to stop it.

For me, I didn't care what the content of the title tag was. I just did:
$('a').hover(function() {
$(this).attr('title', '');
});
Which stopped the title tag from showing.