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.
Related
I've added colorbox to a site that contains product attributes. When a user has selected the attributes and closed the popup I either want to change the background colour of the button used to open the popup, or display a marker so that they know they have chosen the options for that product out of the grid layout.
I have got a close event firing ok on colorbox. I tested it with alert("closed"), so i know that it is activating correctly.
So i added:
$(document).bind('cbox_closed', function(){
document.getElementById('.inline').style.backgroundColor = "#f3f3f3";
});
but it didn't change the background colour of the "inline" class.
What am i doing wrong?
If i decide to go with a check mark that is hidden with display:none; what is the process for overriding the display:none; css?
Thanks
There are a couple problems I see here:
A. You're incorrectly accessing a class name "by id". Switch to jQuery CSS selector and css() method to change the BG color:
$(document).bind('cbox_closed', function(){
$('.inline').css({backgroundColor: "#f3f3f3"});
});
B. You may want to add your event listener directly in the colorbox options in the constructor, rather than on the document, which ought to perform better, and will kill the listener when the colorbox is destroyed (no memory leaks):
$('#my_colorbox').colorbox({
// options
onClosed: function() {
$('.inline').css({backgroundColor: "#f3f3f3"});
}
});
You can't access the class with document.getElementById(). Use document.querySelectorAll('.inline') instead.
or use jquery way
$('.inline').css('backgroundColor', '#f3f3f3');
Use
$(document).bind('cbox_closed', function(){
document.querySelectorAll('.inline').style.backgroundColor = "#f3f3f3";
});
I need to make a div so that when the cursor hovers over it then I can detect it (using javascript) but I want to make it so that you can click through the div to the elements underneath. Is there a way to do this?
Thanks
Edit
As far as I'm aware, and through my quick searches, I do not believe that you are able to do this, if you can it wouldn't be easy and or very practical I wouldn't think.
old
Using jQuery:
$(document).ready(function(){
$("body").on("hover", "div", function(){
//do whatever you want on hover
});
$("body").on("click", "div .child-class", function(){
//do whatever on click
});
});
If this doesn't answer your question and do what you want, let me know what more specifically why it doesn't.
There are multiple solutions for this depending on your problem.
I will start with some assumptions:
1. You are the owner of the page (you know what happens there);
2. You know what element is beneath the clicked element.
For this case check this code:
//function executed when you click on element with id: beneath
function clickOnBeneath() {
alert("beneath click");
}
//function executed when you click on element with id: above
function clickOnAbove() {
var beneathEl;
beneathEl = document.getElementById("beneath");
beneathEl.click();
}
//attach click event on element with id: above and beneath
function attachClickOnElements() {
var aboveEl,
beneathEl;
aboveEl = document.getElementById("above");
aboveEl.addEventListener("click", clickOnAbove, false);
beneathEl = document.getElementById("beneath");
beneathEl.addEventListener("click", clickOnBeneath, false);
}
attachClickOnElements();
and also working example: http://jsfiddle.net/darkyndy/xRupb/
If you don't know what element is beneath it then I will try to find some code as I wrote a couple of years back something like this, as start point you can check getClientRects() function that is available on HTML elements (documentation: https://developer.mozilla.org/en-US/docs/DOM/element.getClientRects )
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.
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!
I'm using this function to create an transparent overlay of information over the current div for a web-based mobile app.
Background: using jQTouch, so I have separate divs, not individual pages loading new.
$(document).ready(function() {
$('.infoBtn').click(function() {
$('#overlay').toggleFade(400);
return false;
});
});
Understanding that JS will run sequentially when i click the button on the first div the function works fine. When I go to the next div if I click the same button nothing "happens" when this div is displayed, but if i go back to the first div it has actually triggered it on this page.
So I logically duplicated the function and changed the CSS selector names and it works for both.
But do I have to do this for each use? Is there a way to use the same selectors, but load the different content in each variation?
Would something like this work? I'm assuming what you want is for different buttons to call toggleFade on different overlay divs.
function makeOverlayHandler(selector) {
return function() {
$(selector).toggleFade(400);
return false;
}
}
$('button selector').click(makeOverlayHandler('#overlay1'));
$('another button selector').click(makeOverlayHandler('#overlay2'));
You could also change makeOverlayHandler's selector parameter to a jQuery object instead of a selector and call it like this: makeOverlayHandler($('#overlay1')).
This best way to do this is to make it all relative, so say you have markup like this:
<div class="container">
<div class="overlay">Overlay content</div>
<button class="infoBtn">Click to show overlay</button>
</div>
Then you can find the overlay for this button realtively, like this:
$(function() { //equivalent to $(document).ready(function() {
$('.infoBtn').click(function() {
$(this).closest('.container').find('.overlay').toggleFade(400);
return false;
});
});
You can optimize this further, e.g. .children('.overlay') if the overlay is always a direct child of container. This goes from the current button (this), finds the .container it's in using .closest() and then finds the .overlay inside of it using .find(). With this approach you have one small bit of code to handle all your bindings, much easier to maintain :)