Here is a link for a fiddle project I am working on right now. What I am trying to do is to switch active menu element depending on what section is displayed right now on screen. So if it is Kontakti on screen, then Kontakti in menu (<!--NAV BAR-->) has to display as active item. I am not familiar with jS
Add data-role=navigate attribute to ul element where navigation is housed,
In the javascript section of this fiddle,
please try with the following code,
$(function()
{
$("[data-role=navigate]").find("li > a").click(function()
{
$(this).parents("ul").find("li.active").removeClass("active");
$(this).parent().addClass("active");
})
})
I will explain in brief what the code does...
1) Binds a click event handler to <a> inside <li> which is inside <ul> with attribute data-role=navigate
2) When the click happens, it removes the active class for the current element.
3) Assigns the active class to the immediate parent of the <a>
It is a good practice to target specific needs in JS by placing attribute in the DOM elements and hooking up event listeners using that attribute.
Hope it helps!
Bootstrap's Affix might be something that could be useful in this case. It highlights what part of the page is displayed on the screen on a separate sub-navigation part of the page.
Btw, if you have Bootstrap code you can display it on Bootply quite easily. It provides Bootstrap's CSS and JavaScript files by default.
You say you're not familiar with JavaScript but you're asking for functionality that needs JavaScript. I'd recommend trying to use a plugin if it's not something you can write yourself.
Waypoints would do exactly what you're looking for:
http://imakewebthings.com/waypoints/guides/getting-started/
Related
I'm working on a simple website to use at a conference and I'm looking for some help understand the implications of two ways to achieve an effect:
Using .toggle() to show or hide content
This is the method I started with because it is an intuitive action to tap an element to have it's content appear. However, a problem arises when I try to limit one open div at a time.
Summary I'm having trouble limiting the number of opened elements.
Applying an active class with jQuery
Using this method, I can display the hidden content by selecting the child element (see code below), but this stops the user from closing the content by tapping it again. Because I'm expanding divs horizontally, this isn't ideal because of the scroll space that's added.
Summary: How do you close the active div on a second click with this method?
CodePen Demo - Staged site
Relevant Code
This method is using CSS to apply the active class. It works, but like I said above, I'm having a hard time removing the active class from an element tapped again. Use the demo linked above to see how the toggle action works on the page (uncomment lines 8 and 9).
$(".title").click(function() {
//remove active class from other elements
$('.post').removeClass('active');
// Bind to the div
$post = $(this);
// Set active class on .post to control scroll position
$post.parent().toggleClass('active');
// Toggles the hidden .content div
//$post.next().toggle(250);
$('html, body').animate({scrollLeft: $('.active').offset().left},500);
});
The accompanying .active CSS:
.post .content {
display:none;
}
.active {
margin-top:-120px;
}
/* Shows the content div rather than toggling with jQuery */
.active > .content {
display:block;
}
Is there a way I can allow both behaviors (tap to open/close, one open div at a time)? Which method is best suited for that?
You certainly can use toggle() while hiding the other ones. Try something like this:
$(".title").click(function() {
$('.post').not($(this).parent()).hide();
$(this).toggle();
$('html, body').animate({scrollLeft: $(this).parent().offset().left},500);
});
Update: changed .not(this) to .not($(this).parent()) as .title is always child of .post.
Slightly optimised version of #Daniel's solution
$('.title').click(function() {
var clickedPost = $(this).parent('.post')
clickedPost.toggle().siblings('.active').hide();
$('html, body').animate({scrollLeft: clickedPost.offset().left},500);
});
Local var: If you access this, or any other DOM element more than once inside a scope, it's always more efficient to assign it to a local var than wrap it in a JQ object multiple times.
SIblings selector: I don't have a benchmark for this, but running a selector on a subset of the DOM rather than the whole DOM seems intuitively faster. This is more best practice than a large performance hit, but all the little functions add up too.
Chaining JQuery functions: Most JQ functions that act on a JQ element return that element. I can't say that this is more efficient but it's certainly more concise, but this all depends on personal preference.
With very little code you can do this with toggle.
$(".title").click(function() {
$(".post").hide();
$(this).children(".post").toggle();
});
I made it as simple as possible to show the functionality which you could then extend on.
Here is a jsfiddle
EDIT update after comment
I have edited it to now only show 1 at a time and if the 1 currently being shown is clicked it hides it
I also elected to use slideUp() and slideDown() as it seemed to better suit your needs
$(".title").on("click", function(){
if($(this).children(".post").is(":visible")){
$(this).children(".post").slideUp();
}else{
$(".post").not($(this).parent()).slideUp(500);
$(this).children(".post").slideDown(500);
}
});
updated jsfiddle
I purchased Jaegers tabs (http://codecanyon.net/item/tabs-seo-mobile-friendly/3225560) because they look very clean; however the support at the website is very lacking and the person has not answered any support questions for over a year. I am new to HTML5 and jQuery and really don't understand the documentation. I'm trying to figure out how to call a tab programmatically.
If you have a reference to one of the a elements, then you can trigger a click event through jQuery.
example:
<a id="fancy_link" >Fancy</a>
$('#fancy_link').trigger('click');
In the case of the code on the main code on http://jaegers-ui.com/tabs/, it looks as if it puts an a element inside an h1element inside a section element that has an id on it, so you can easily do
$('section#effects h1 a').trigger('click'); //This will trigger a click event on the link inside a link inside an h1, inside the section element with id=effects
I’m having trouble with a small mechanics difference between a full-view menu and a mobile-view menu (using the same ul>li>a structure). In the mobile view, the menu hides until the .showMe class is added to its parent div. No problem there, but when I try to select the submenus by using .showMe in the selector chain (in order to perform jQuery actions only when in mobile mode), the script breaks and the dependent actions never occur.
The chunk of selecting code in question is here:
$('.showMe .menu-item-has-children > a').click(function(event){
// prevent default link behavior
if (!($(this).siblings('.sub-menu').hasClass('expanded'))) {
event.preventDefault();
}
// close down any open submenus
$('.sub-menu').removeClass('expanded');
// expand the clicked link’s child ul
$(this).siblings('.sub-menu').toggleClass('expanded');
});
If I remove the .showMe selector from the top line, the effect works great.
See the live site for testing here: http://www.wwva.org.php53-14.ord1-1.websitetestlink.com/students
I feel like I’m going crazy here—what am I missing?
Thanks in advance.
Answered in comments—thanks adeneo!
"The event handler is only added to the elements that match the selector at the time it's bound. Adding a class later means the event handler won't work for those elements, as they didn't match the selector when the event handler was bound. ... You can check for the class inside the event handler."
I have a list of questions and answers grouped in different divs. I would like to collapse them when a click event is fired that is placed on the question. I have read the examples from the Twitter Bootstrap page but I would like to tricker the event with Javascript and not with data-attributes. With data-attributes every question needs a unique id and this will hard to maintain in the future. I want to trigger the class ".collapse"
Code: http://codepen.io/anon/pen/grdnA
Try this example. You can always modify it according to the element being watched for click and the element to toggle.
jsFiddle
You can use slideToggle() instead of toggle() to get the collapsing effect.
Regards
Something like this? Remember to include jQuery library
$('[data-toggle="collapse"]').on('click', function () {
$(this).closest('div.panel').find('.collapse').toggle('')
});
DEMO
I am not getting a tooltip to work and I think the problem is with my selector.
I had selected a plugin that is located here: http://flowplayer.org/tools/tooltip/index.html
It says that you can use the title attribute of an element as the selector. I am wanting to select menu items and attach a tooltip to each one (to describe the menu links). It seemed that the easiest way to do this is to use the title attribute. I only need to fit about 10 or less words in each tooltip. Before describing what could be the problem, let me also mention a couple things.
I have on the page a JQuery accordion too, from the jqueryui.com site. That link to the jqueryui is placed after the call to the jquery tools from http://flowplayer.org/tools/tooltip/index.html. I thought this was the jquery ui at first but jqueryui doesn't have a tooltip - though they have a dialog box that is similar but I don't need the header, just room for a few words.
So, let's see where I could have went wrong.
A) The call to the jquery tools comes before the call to the jqueryui. When that was reversed, my accordion didn't work.
B) The plugin documentation says that there is a class .tooltip which is available by default and the code also let me set the class for the tooltip to tooltip. It is definitely not getting any of the styling that I setup for the tooltip. I'm not sure how to confirm that this tooltip class exists because it only shows up when the tooltip appears.
C) My selector. At first I tried a CSS Descendant selector, just like I would in CSS. I even added a containing div with id of tooltip.
1)First selector: $('#tooltip a[title]), to get the a tags that have a title attribute. That was described in the documentation, though to me it seems like you would want to "trigger" on the anchor tag, not it's title attribute
2) Second attempt with descendant selectors $(".art-hmenu a.tt[title]") - I have inside the tag that has a class of art-hmenu an anchor tag with class tt and I want the title attribute. - didn't work.
3) lastly, I tried using ("#tooltip").find('a[title]') - thinking this would find the anchor tag with title attribute.
The documentation page says that this code will take advantage of the element's title attribute:
$("img[title]").tooltip();
That might put a tooltip on every img tag, wouldn't it? My first example above is similar in using ("#tooltip a:[title]") which doesn't work.
Maybe the title shouldn't be on the anchor tag but instead on the li tag.
I could use some help figuring this out - wherever the problem might lay, which I think is how I am making my selection.
Thanks,
Bruce
your looking for an attribute so use the $('#tooltip a').attr("title") instead.
It sounds like you are over-complicating this.
Give the link, phrase, input, button the class of "trigger" and a title. Tools will handle everything else. You can style the tooltip with a .tooltip class. You position the tooltip with the offset and position settings. If you want to get crazy with styling you can layout: or open the plugin source code and wrap html around the Append(title).