I am not sure what language or how to do this, but I am looking to have a word on a page, and when clicked, it will reveal more underneath. If it is clicked again, that stuff will hide away again? Any ideas?
Basically, you will need to manipulate the display CSS property of the element to be hidden/revealed:
<span id="showHide">Show</span>
<div id="foo" style="display:none">Here is some text</div>
<script>
document.getElementById("showHide").onclick = function() {
var theDiv = document.getElementById("foo");
if(theDiv.style.display == 'none') {
theDiv.style.display = 'block';
this.innerHTML = 'Hide';
} else {
theDiv.style.display = 'none';
this.innerHTML = 'Show';
}
}
</script>
I'd recommend javascript and using jQuery .show() & .hide() methods:
http://api.jquery.com/show/
http://api.jquery.com/hide/
http://www.learningjquery.com/2006/09/slicker-show-and-hide
you could do this with jQuery, here a ready to use example:
http://jsfiddle.net/8sDLg/
$(function() {$('div.more').hide()
$('a.showmemore').click(function(){
$(this).next('div').slideToggle()
})})
Put the stuff in a div with style display:none;. In the onClick handler of the word (can be link or a button), toggle the display style between '' (which means 'default') and 'none'
I created a demo for you here.
You could use jQuery for that and make your life easy:
Show/Hide
<div id="mydiv">Some content</div>
jQuery:
$(function(){
$('#link').click(function(){
$('#mydiv').slideToggle();
return false;
});
});
As can be seen, the slideToggle() does the trick there for you :)
Executive summary: use a framework plugin
Long version:
You could use javascript -- more likely in a combination with a javascript framework, like jQuery. This would involve adding a click handler to the word (actually a span tag around it) and having a way to retrieve the extra information to show as a tooltip -- there are plenty of plugins for this. Search for "jquery tooltip" here or using google: here's one example.
Alternatively, you could simply surround the word with the span tag and add a title attribute to the tag. Hovering over the word (actually the tag) would bring up the browser's default tooltip. This might be an easy way to get started with it -- in fact, this could be the start of the javascript solution. Using the tag for the click event and taking the data from the title attribute -- probably by storing the title in jQuery data on page load, then grabbing the text from the data on click so that you don't have a conflict with the browser's tool tip behavior. Many of the plugins operate this way.
Another elegant approach using pure HTML and CSS without JavaScript.
HTML:
here goes text before
<label class="details">
<input type="checkbox" /><span>here come some details</span><em> </em>
</label>
and after
CSS:
.details input,
.details span {
display: none;
}
.details input:checked~span {
display: inline;
border-bottom: dotted 1px gray;
}
.details em:after {
content: "show...";
}
.details input:checked~em:after {
content: "...hide";
}
Quick idea how to do it when avoiding a JS-only solution. I'm using jQuery here, because it is faster to code in, but as I mentioned above, if this is your only JS functionality it would only add a heavy-weight file for some trivial extras.
<script type="text/javascript">
jQuery(function() {
$(".article .additional")
.hide()
.before("<a href='#'>")
.prev()
.text("more")
.click(function() {
$(this).next().toggle()
})
});
</script>
<div class="article">
<h2>Some headline</h2>
<p>Some intro text that is always visible</p>
<div class="additional">
<p>Some extra text that is hidden by JS</p>
<p>But will stay visible if the visitor doesn't have JS</p>
</div>
</div>
As you see, the HTML is completely stand-alone. Only if JavaScript is supported, a "more" link will be added and the additional content hidden, so that non-JS users still can read all the text and don't have an useless "more" link.
Related
My divs are nested so i understand i cant display an element if its already hidden. I want the information(p1 inside my html code)to display once the mouse hovers over another element(h1 in my html. I have already made my paragraph 1 style to none in JavaScript, now i need it to re-appear, i have tried the following code to attempt to make it re-appear document.getElementById("1").onmouseover.style.display = "block"; but with no success.
This is My HTML code, ignore the order im new to web dev lol
This is the code i have tried but it doesnt seem to work
This is the end result i want, the circled text on hover display the paragraph
So a few things. For starters, put actual code into your questions instead of screen shots. If we can't reproduce your issue it's difficult to troubleshoot usually from just pictures.
Next, you might familiarize yourself with syntax a bit more since p1 isn't a valid HTML element.
Then, try not to rely on javascript too much and keep presentation stuff on the compositor thread. Here's an example accomplishing your goal with no javascript. Hope it helps, cheers!
p {
display: none;
}
h1:hover + p {
display: block;
}
<h1>Hover me</h1>
<p>PEEK A BOO!</p>
Yes, this is doable without javascript but since the question asked how to do it with, hopefully this helps get OP on the right track.
<div id="bioBlock" style="display:none">
<h2 id="1">
Cameron Lodge
</h2>
<p1 id="para">Im an avid learner of anything computers....</p1>
</div>
function showBioBlock() {
document.getElementById("bioBlock").style.display = "block";
}
https://jsfiddle.net/avL3j765/
document.getByElementId("myH1").onmouseover = function(){
displayH1("myP");
}
document.getByElementId("myH1").onmouseout = function(){
displayH1("myP");
}
function displayH1(myId){
if(document.getByElementId(myId).style.display == "block"){
document.getByElementId(myId).style.display = "none";
}else{
document.getByElementId(myId).style.display = "block";
}
}
This invokes a function that toggles the paragraph's style when the mouse enters and leaves the element. It assumes that you have an id on both your h1 and p tags, in my example myH1 and myP respectively.
What I am trying to do:
I have mutiple anchor links within text, each of which refers to and connects to a specific image (on the same page).
After the user views that image, I would like them to hit a 'Back' button, which will bring them back to the text where they clicked on the link, to continue reading from where they left off.
(I have created the button in the html, with an 'id' of 'backButton').
Note: I am new to JS and jQuery, and perhaps my inability to find a plugin or explanation of how to do this has something to do with a failure to do a search with a clear and concise explanation in a search box.
(It seems to me that this would be a fairly commonly used feature)
This is where I currently stand with my attempts to use jquery for this:
$(function(){
$('a').click(function(){
$(this).attr('id', 'backToLink').addClass('que');
$('#backButton').attr('href', '#backToLink');
});
});
(I will try to explain my reason for why I did each step so that someone might tell me why it is wrong):
$('a').click(function(){
For each anchor, when it is clicked on, do this function,
$(this)
Refer to the anchor link that was clicked,
.attr('id', 'backLink')
Give this anchor the 'id' of backToLink,
.addClass('que');
Add the class of que, which is set in my CSS file to give padding-top so that the text will be visible below the fixed-position header,
$('#backButton').attr('href', '#backToLink');
Set the #backButton href to go back to the original link in the text, which should now be #backToLink.
Note: I suspect it will be necessary to turn off that id of #backToLink after it is used,
so that the next time it is used it will not conflict with the first.
I think the issue here is if you want to use anchor navigation then you dont need to use html button. Just simply use anchors. Here is a simple example of what you want to achieve. You can add in logic to make it dynamic according to your needs or keep it like this with adding the number of links manually. Hope this helps.
P.S. css classes are used just to add spacing to demonstrate the scrolling.
function scrollToAnchor(aid){
var aTag = $("a[name='"+ aid +"']");
$('html,body').animate({scrollTop: aTag.offset().top},'slow');
}
$("a").click(function() {
scrollToAnchor($(this).attr('href').slice(1));
});
#container{
height:2800px;
}
#block1{
background-color:black;
width:100px;
height:100px;
margin-top:1000px;
display:inline-block;
}
#block2{
background-color:black;
width:100px;
height:100px;
margin-top:600px;
display:inline-block;
}
<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
<div id="container">
Link to Block 1
<br><br>
Link to Block 2
<br>
<div id="block1"></div>
Back to Link 1
<br>
<div id="block2"></div>
Back to Link 2
</div>
Is there a way to put actual html code inside a title attribute on a table row element? My goal is to pop-up not only text but some info-graphics along with it, so a mouseover event thats not a modal would be great. Am I going in the wrong direction?
This table is already using jquery datatables but I don't believe it can do that sort of event.
<tr title='This activity will be open to registration on April 31st' >
.....
</tr>
Nope. You'd need to create your own title substitute with JavaScript.
No.
HTML can't be placed in an attribute.
If the goal is to have a pop-up with rich content, then you need to handle this via javascript. In addition, from an accessibility standpoint, you likely don't want to put that amount of content into the title attribute anyways, so going the JS route is going to solve a few problems for you. Google 'JS Tooltip' for dozens of options.
Native tooltips do not use HTML. jQuery UI tooltips would be very useful here.
Demo: http://jqueryui.com/tooltip/
EDIT: You would need to use the content option to use markup instead of the title attribute.
$(".text")
.tooltip({ content: '<b style="color: red">Tooltip</b> <i>text</i>' });
Here's a Fiddle demonstrating this: http://jsfiddle.net/acbabis/64Q2m/
You can use jquery ui tooltip plugin for showing custom title
There is no direct way to render HTML code written inside a tooltip. However, if you are using jQueryUI (or, if you can) then the code below will show the HTML effect (render) and not the HTML code in the tooltip.
Requirements: jQuery, jQueryUI.js, jQueryUI.css
HTML Code:
<tr data-title='This activity will be open to registration on <b>April 31st</b>'>.....</tr>
JavaScript:
$(function() {
$( document ).tooltip({
items: '[title], [data-title]',
track:true,
content: function(){
var element = $( this );
if ( element.is( "[title]" ) ) {
return element.attr( "title" );
}
if ( element.is( "[data-title]" ) ) {
return element.attr( "data-title" );
}
}
});
});
Instead of focusing on the title attribute, enclose a popup message with tags inside the target <td></td> (table data element). Then put a class in that td to control the div with CSS, hiding it first, then making its contents visible when the mouse hovers over the specific table data element. Something like this:
<tr><td class="info-tooltip">This activity will be open to registration on April 31st <div>[ *the contents you would want to popup here* ]</div></td></tr>
Your CSS then might be something like:
td.info-tooltip div {
display:none;
}
td.info-tooltip:hover {
position:relative;
cursor:pointer;
}
td.info-tooltip:hover div {
position:absolute; /* this will let you align the popup with flexibility */
top: 0px; /* change this depending on how far from the top you want it to align */
left: 0px; /* change this depending on how far from the left you want it align */
display:block;
width: 500px; /* give this your own width */
}
Using Bootstrap Tooltips one can do the following
<span title="Some <b>bold words</b>" data-toggle='tooltip' data-html='true'>this has an html supported tooltip</span>
for me it happens automatically but you might need to trigger it with javascript.
$(function () {
$('[data-toggle="tooltip"]').tooltip()
})
docs
I think a good option is to put that content inside a data attribute, something like this:
<div data-tooltip="Some information I want to show">
Actual content
</div>
And then, write a simple jQuery plugin that shows that content inside an element upon hover over.
I want to change display without documentGetElementById if possible but the following is not working.
html
Instructions<div id="showfaq1" style="display:none;">Open Box. Remove device. </div>
javascript:
function toggleFaq(faqid) {
//alert(faqid);
var divname = "showfaq"+faqid;
//alert(divname);
divname.style.display="block";
}
Can anyone tell me what I am doing wrong?
Thank you.
I can't get why you do not want to use getElementById, but...
If you have elements in order like this
Instructions
<div id="showfaq1" style="display:none;">Open Box. Remove device. </div>
Instructions
<div id="showfaq2" style="display:none;">Open Box. Remove device. </div>
...
Instructions
<div id="showfaqN" style="display:none;">Open Box. Remove device. </div>
You may use
Instructions
function toggleFaq(obj) {
obj.nextElementSibling.style.display = 'block';
}
In your code divname is a variable containing a string "showfaq1", which doesn't have style property.
To change the style of an element you need a reference to that element which you can obtain using document.getElementById(divname):
function toggleFaq(faqid) {
//alert(faqid);
var divname = "showfaq"+faqid;
//alert(divname);
document.getElementById(divname).style.display="block";
}
If you have an allergy to document.getElementById, you may use document.querySelector('[id="' + divname +'"]');, but its support is not as good as the former, and it's slower.
Posting a separate answer as it has no impact on my previous one. But you could make the base mechanism without JS at all, then use one of the JS-based solutions to fix it in broken browsers if needed:
HTML
Instructions
<div id="showfaq1">Open Box. Remove device. </div>
CSS
a + div { display:none; }
a:focus + div, a + div:target { display:block; }
DEMO
This should be so simple, but I'm making heavy weather of it.
Div region set out as:
<div class="maincontent">
Stuff in my div
</div>
CSS for that div:
.maincontent{
height: 100%;
background-size: 100%;
margin-left:1%;
margin-right:1%;
font-size:16px;
}
Then I have:
onLoad=changeBackground();
But before that I have the function:
function changeBackground(){
document.getElementByAnything('maincontent').style.backgroundColor="yellow";
}
I know its making the call to the function because if I put an alert box in there that shows. But no matter what combination of getElementBy I can't make any changes to the background?
Please help as its driving me insane!
TIA
Have you tried giving your div an id and using document.getElementById('divId') instead? I think if you want to get the element by class you have to use jquery.
getElementById('maincontent')
and change your div to have an id="maincontent"
Try giving the element an id and doing document.getElementById and then do console.log in firebug or other developer tools and verify that you are actually getting a dom element back.
Once you have verified that you should then be able to switch the background color
You're trying to select the div using its class. This isn't quite as straightforward as getting it by id. Try this:
<div class="maincontent" id='mainContent'>
Stuff in my div
</div>
function changeBackground(){
document.getElementById('mainContent').style.backgroundColor="yellow";
}
You can see a working example here: JSFiddle
If you want to get the element using its class, I would recommend using Jquery or another library.
If you're using in line Javascript then use, instead:
onchange="changeBackground(this)"
And:
function changeBackground(elem){
elem.style.backgroundColor = "yellow";
}
Edited as I suddenly remembered you were discussing events based on div elements. As a div doesn't natively support the onchange event, I'd suggest amending your code to the following (though changing the event-type onmouseover to whatever event you find most appropriate):
function changeBackground(elem){
elem.style.backgroundColor = 'yellow';
};
JS Fiddle demo.
Also, to remove the events from in-line code, and to make the JavaScript more portable and less 'intrusive':
function changeBackground(elem){
elem.style.backgroundColor = 'yellow';
}
var maincontents = document.getElementsByClassName('maincontent');
for (var i=0,len=maincontents.length; i<len; i++){
maincontents[i].onmouseover = function(){
changeBackground(this);
}
}
JS Fiddle demo.
Bear in mind, though, that some browsers (such as Internet Explorer 8 and below) don't support getElementsByClassName().
I recommend using jQuery if you want to select a DOM by class name.
Put this code in your <head> part of your html
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
and change your function to
function changeBackground() {
$(".maincontent").css("background-color","yellow");
}