I have a stack of <div> elements that show a name. I'd like to include a + link off to the side of each <div> that, when clicked, expands the <div> and adds more detailed information (from a RoR controller).
After poking around on the net, I found link_to_remote and related RoR stuff, but I can't seem to get the right combination to work together. Can someone point me to a tutorial or show what the controller and view interaction should look like?
Thanks!
You can do this really easily with Javascript in the example below:
<html>
<head>
<title>Text Page</title>
<script language="Javascript">
function toggleDiv(divid) {
if (document.getElementById(divid).style.visibility == 'hidden') {
document.getElementById(divid).style.visibility = 'visible';
}
else {
document.getElementById(divid).style.visibility = 'hidden';
}
}
</script>
</head>
<body>
<span onClick="toggleDiv('div1');" style="cursor:pointer;">+</span>
<div id="div1" style="visibility:hidden;">This is DIV 1</div>
<span onClick="toggleDiv('div2');" style="cursor:pointer;">+</span>
<div id="div2" style="visibility:hidden;">This is DIV 2</div>
</body>
</html>
If you set the initial visibility of the DIV's to hidden, you can use the toggleDiv function shown above to toggle the visibility of any DIV given the ID. You will probably need to tweak the style definitions for the DIVs to display next to the plus signs (put them in adjacent <TD>'s in a table for example), but I figured I'd keep it simple.
Good Luck.
Related
I have developed a php loop that creates a register form everyday for each user in my database. Each form has one div which contains a variety of dropdowns (is blue) and this is placed directly over one which shows has what has been submitted that day (is green). When one of the dropdown boxes is selected I have used jquery to make the top div disappear which shows the answer on the div below. If a mistake is made then there is a reset button which puts an x into the database and puts the blue div back on top.
I have also created a php query that finds the most recent input for each user every day (whether it is an x or what they were registered that day). This is then echoed into a div on to the top div (I use CSS to hide it).
What I want to have happen is that when somebody loads the page that it will show which people have already been registered that day. I want to do this by having a function that hides the top div for anybody who's string length is >2. I have tried multiple ways to do this but can't get any to work. Is there a way to create unique id's and then transfer these to jquery?
I have attached a simplified version of the code below that shows the two divs. Any help would be really appreciated. Essentially what I want to have happen is that when the page is loaded, if the text in div "top" is longer than 3 characters then that box disappears for that user and the green div below is shown. I am aware all the other programming is gone but I have sorted all of that and only need this to happen on load. I have tried using $(this) but it didn't work. Thanks in advance for your help.
<!DOCTYPE html>
<html>
<head>
<?php include 'dbconnection.php'; ?>
<style>
.show {visibility: visible;}
.hide {visibility: hidden;}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
$(".top").each(function() {
if ($(this).text().length > 3) {
$(this).parentsUntil(".bottom").addClass("hide");
$(this).parentsUntil(".bottom").removeClass("show");
}
});
});
</script>
</head>
<body>
<?php
$query=mysqli_query($connect,"SELECT * from firstnametest where class = 'group1'" );
while ($row=mysqli_fetch_array($query)) {
?>
<div id="bottom" class="bottom hide" Style="background-color: green; width:398px; height:196px;">
<div id="top" class="top show" Style="background-color: blue; width:398px; height:196px;">
<?php echo$row["recent"]; ?>
</div>
</div>
<br>
<?php
}
?>
</body>
I find myself needing to change style of all elements that have an attribute in common (let's say a class name) when one of these elements is hovered. This is super easy to do with jQuery, like this:
$(function() {
$('.bookId4').hover( function(){
$(this).css('background-color', '#F00');
},
function(){
$(this).css('background-color', '#000');
});
});
Though I don't know how to achieve this with Angular. In this example, the elements that have the class .bookId4 are generated with Angular AJAX call, so I'd like to use Angular to create the hover effect as well. Thank you!
EDIT
To explain further, I will have many divs being generated with an AJAX call, and the div's that are in the same group will have the same class. This is the HTML code:
<div class="bookId{{ privateTour.booking.id }}"> <!-- Wrapper for hover effect -->
When one of the divs is hovered I want ALL of the divs (not only the div that is being hovered) with the same class (or some other value that they may have in common) to have a hover effect. My preferred way would be for Angular to search the whole page for all divs with a certain class name and apply a style to that class (to not have to for example generate tons of CSS for all the classes that were generated, which I'm not even sure it would work).
You can do that by using ng-mouseenter and ng-mouseleave directives, Here is the simple code, you can build on top of it to meet your requirements
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Example - example-example73-production</title>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"></script>
</head>
<body ng-app="">
<h1 ng-style="myStyle" ng-mouseenter="myStyle={'background-color':'blue'}"" ng-mouseleave="myStyle={'background-color':'none'}"">Hello World</h1>
</body>
</html>
You can apply simple css solution for hover, like
.bookId4:hover {
background-color: '#F00';
}
No need for angular or jQuery :-)
Yes I agree with using ng-mouseenter and ng-mouseleave.
I did a example hope can help you
https://embed.plnkr.co/Cxfv0I9IEfBhZYj8A3zS/
use ng-class, create one scope variable which is by default false.
when mouseEnter OR mouseLeave event occurs make it TRUE/False accordingly.
<style>
.bookId4{color: red;}
</style>
<span ng-mouseenter="ctrl.hovered()" ng-mouseout="ctrl.nothovered()" ng-class="{ 'bookId4' : ctrl.ishovered==true }">soemthing 1</span>
<span ng-mouseenter="ctrl.hovered()" ng-mouseout="ctrl.nothovered()" ng-class="{ 'bookId4' : ctrl.ishovered==true }">soemthing 2</span>
<span ng-mouseenter="ctrl.hovered()" ng-mouseout="ctrl.nothovered()" ng-class="{ 'bookId4' : ctrl.ishovered==true }">soemthing 3</span>
_this.ishovered =false;
_this.hovered = function(){
_this.ishovered =true;
}
_this.nothovered = function(){
_this.ishovered =false;
}
In the end I found using an ng-class condition to be the best solution, and a variable decides what group should be highlighted. This line that I initially tried using did not work correctly:
<div ng-class="hovering == privateTour.booking.id ? 'hl' : ''" ng-mouseenter="hovering = privateTour.booking.id" ng-mouseleave="hovering = 0"> <!-- Wrapper for hover effect -->
For some reason, only the hovered div was highlighted, so I had to send the signal to a variable using a function instead for it to have a global effect. I ended up using this code for the div wrappers:
<div ng-class="hovering == privateTour.booking.id ? 'hl' : ''" ng-mouseenter="setHover(privateTour.booking.id)" ng-mouseleave="setHover(0)"> <!-- Wrapper for hover effect -->
And I wrote this simple function in the scope:
$scope.setHover = function(bookId) {
$scope.hovering = bookId;
};
And here's the style for the highlight class .hl:
.hl {
background-color: red;
}
Thank you for everyone giving the lead of ng-mouseenter and ng-mouseleave!
I try to make some kind of ads rotator as follows:
<html>
<head>
<title></title>
<style>
body {
margin:0;
padding:0;
}
</style>
<script>
function fillBoard() {
s = document.getElementsByClassName('slots');
board = document.getElementById('board');
board.innerHTML = s[0].innerHTML
alert(board.innerHTML);
}
</script>
</head>
<body>
<div id="board" style="width:160px; text-align: center; margin:0">
</div>
<div class="slots" style="display:none">
<!-- THE PROBLEM IS HERE -->
<!-- Begin Hsoub Ads Ad Place code -->
<script type="text/javascript">
<!--
hsoub_adplace = 1310003403401506;
hsoub_adplace_size = '125x125';
//-->
</script>
<script src="http://ads2.hsoub.com/show.js" type="text/javascript"></script>
<!-- End Hsoub Ads Ad Place code -->
</div>
<div class="slots" style="display:none">
<img src="http://lorempixel.com/160/90/sports/1/" />
</div>
<div class="slots" style="display:none">
<img src="http://lorempixel.com/160/90/sports/2/" />
</div>
<div class="slots" style="display:none">
<img src="http://lorempixel.com/160/90/sports/3/" />
</div>
<script>
fillBoard();
</script>
</body>
</html>
In the code above:
There is a div with id board to act as a board that displays contents.
The board should be filled with data supplied from other hidden divs with class name slots using innerHTML property.
To do the above a function named fillBoard() is defined in the head section of the page and then called at the end of it just before closing </body> tag.
What is happening?
The hidden divs slots works fine with divs that contain images. However, in the first div there are a javascript code that should generates ads from an ads network which it does not work.
I expect that the javascript code of the ads network should fill its div with data, then the calling of fillBoard() will just copy its content to the board div. However, this is does not occur!
I need to know how could I overcome this issue?
A live example is found here
You can just show the desired hidden div and it's usually a better practice than copying DOM content. If you make sure to only show one of the hidden divs at a time you can show the image always in the same place.
Try this to show the first "slots" element:
s[0].style.display = 'block';
Ok so after some more digging I've found the issue, although I don't have an easy solution at the moment.
The js file show.js is generating some ad content inside of an iframe for you, which you are placing in the first 'slots' div. Simple enough. When you are setting the content of the board to the content of the first slots class, an iframe is being created in the board div but without the same content.
After some searching it seems that innerHTML of an iframe will not copy the contents of the iframe if it comes from a domain other than the page domain for security reasons.
It seems to me that the solution at this point is to either show and hide the slots divs like Zhertal suggested or you can possible find some other way to physically move the content of the slots div into board, but this may still be a violation of the same security concern. I'm going to keep digging and I'll edit this answer if I find anything more.
Reference SO posts:
Get IFrame innerHTML using JavaScript
Javascript Iframe innerHTML
I have a fairly novice understanding of CSS and HTML, and I'm trying to do something that I think should be relatively simple (in a custom tumblr theme I'm creating), but I can't find a straightforward answer. I have a feeling there might be a super easy way to do what I want in JavaScript.
I'd like to display a DIV only on the main index page (i.e. homepage) of the tumblr blog. It seems the documentation tumblr provides allows you to do this to some extent (through the {Block:IndexPage} variable), but the problem is the code within this element displays on all index pages (i.e. instead of just showing up at the root level on /page/1, it will show up on subsequent "index" pages like /page/2, etc.
Here's the code I have, which successfully does not show the div on permalink pages:
{block:IndexPage}
<div class="mid2">
<div class="midLeft2">
<p>test</p>
</div>
</div>
{/block:IndexPage}
Any ideas? Any help is much appreciated!
This will work:
{block:IndexPage}
<div id="index"
{block:SearchPage}style="display: none;"{/block:SearchPage}
{block:TagPage}style="display: none;"{/block:TagPage}>
This is displayed only on the index page.
</div>
{/block:IndexPage}
More info: http://ejdraper.com/post/280968117/advanced-tumblr-customization
I was was looking to show code on post pages, but not on the index, search, etc page (i.e. pages with multiple posts. Thanks to the above, I figured out how to do it and wanted to share in case it helps somebody else.
<div id="splashbox" style="display:none">
This is the content I wanted to show on the post pages only.
</div>
<script type="text/javascript">
window.onload=showsplashbox();
function showsplashbox() {
//alert('location identified as ' + location.href);
if (self.location.href.indexOf("post") > -1 ) {
document.getElementById('splashbox').style.display='block';
}
}
</script>
You can also do it just with CSS.
#box{
display:none;
}
.page1 #box{
display:block;
}
<body class="page{CurrentPage}">
<div id="box">
Only displayed in first page.
</div>
</body>
display:none will hide it but thats, a hidden element can still mess with your layout.
We could use the comment code* to turn the div into a comment that wont mess with anything.
*<!-- comment -->
ex.
{block:IndexPage}
{block:SearchPage}<!--{/block:SearchPage}
{block:TagPage}<!--{/block:TagPage}
<div style="width:400px; heigth:200px">
blah blah
</div>
{block:SearchPage}-->{/block:SearchPage}
{block:TagPage}-->{/block:TagPage}
{/block:IndexPage}
The {block:IndexPage} block, as you have discovered, is for all index pages. To target only the first page you can use {block:Post1} inline or {CurrentPage} in script. {block:Post1} will display only on the page with the first post, which achieves what you want. The <div> can then be styled to put it wherever you want.
{block:Post1}
<div class="mid2">
<div class="midLeft2">
<p>test</p>
</div>
</div>
{/block:Post1}
Or:
<script>
if( {CurrentPage} == 1 ) {
//display div
};
</script>
I ended up killing off the {Block:IndexPage} tag altogether and changing the original div callout to this:
<div id="splashbox" class="mid2" style="display:none">
Followed by this script:
<script type="text/javascript">
window.onload=showsplashbox();
function showsplashbox() {
//alert('location identified as ' + location.href);
if (location.href == 'http://site.tumblr.com/' || location.href == 'http://site.tumblr.com') {
//alert('location match, show the block');
document.getElementById('splashbox').style.display='block';
}
}
</script>
This is solved by using div:not() operator.
The HTML Markup will be
{block:IndexPage}
<div id="banner">
<div class="banner_{CurrentPage}">
This Content will appear in only on home page
</div>
</div>
{/block:IndexPage}
Now add this CSS to
#banner div:not(.banner_1)
{
display:none;
}
{block:SearchPage}
#banner
{
display:none;
}
{/block:SearchPage}
{block:TagPage}
#banner
{
display:none;
}
{/block:TagPage}
The background: {CurrentPage} is a Tumblr theme variable which returns the page number of index pages (like 1, 2, 3, ...). Thus the home of any Tumblr blog is page number "1". Now I have defined the class of a div with this page number concatenated with a string "banner_" (Class can not be numeric. WTF why?) - making the class name "banner_1" on homepage. Next, in CSS, I have added display:none property to :not selector of that banner_1 class div. Thus excluding div with banner_1 class, all other div in under #banner div will disappear. Additionally, div with id #banner is hidden in search and tag pages.
Note: <div id="#banner" > is required. Without this, :not will hide all divs in the html.
Warning: IE users (is there anyone left?) need to change their habit. This is only supported in FF, Chrome, Safari and Opera.
I have implemented this in http://theteazone.tumblr.com/ The Big Banner (Tea is a culture) is absent in http://theteazone.tumblr.com/page/2
{block:IndexPage}
<script>
if( {CurrentPage} != 1 ) {document.write("<!--");};
</script>
<div id="banners">
blablabla
</div> -->
{/block:IndexPage}
Alternatively, you can use this tag: {block:HomePage}.
This block renders, as its name implies, on the home page only (ie not on search pages, tag pages etc).
References:
https://www.tumblr.com/docs/fr/custom_themes
Rather than trying to create tons of different pages on my website, I'm trying to update the content of a single div when different items in the navbar are click to update the maint div content. I tried to find a simple example using Javascript:
<script type="text/javascript">
function ReplaceContentInContainer(id,content) {
var container = document.getElementById(id);
container.innerHTML = content;
}
</script>
<div id="example1div" style="border-style:solid; padding:10px; text-align:center;">
I will be replaced when you click.
</div>
<a href="javascript:ReplaceContentInContainer('example1div', '<img src='2.jpg'>' )">
Click me to replace the content in the container.
</a>
This works just fine when I only try and update text, but when I put an img tag in there, as you can see, it stops working.
Either
1) what is the problem with how I am trying to do it?
or 2) What is a better/easier way to do it?
I'm not stuck on Javascript. jQuery would work too, as long as it is just as simple or easy. I want to create a function that will just let me pass in whatever HTML I want to update and insert it into the div tag and take out the 'old' HTML.
You just have some escaping issues:
ReplaceContentInContainer('example1div', '<img src='2.jpg'>')
^ ^
The inner ' need to be escaped, otherwise the JS engine will see ReplaceContentInContainer('example1div', '<img src=' plus some syntax errors resulting from the subsequent 2.jpg'>'). Change the call to (tip of the hat to cHao' answer concerning escaping the < and > in the HTML):
ReplaceContentInContainer('example1div', '<img src=\'2.jpg\'>')
A simple way to do this with jQuery would be to add an ID to your link (say, "idOfA"), then use the html() function (this is more cross-platform than using innerHTML):
<script type="text/javascript">
$('#idOfA').click(function() {
$('#example1div').html('<img src="2.jpg">');
});
</script>
First of all, don't put complex JavaScript code in href attributes. It's hard to read or to maintain. Use the <script> tag or put your JavaScript code in a separate file altogether.
Second, use jQuery. JavaScript is a strange beast: the principles underlying its patterns were not designed with modern-day web development in mind. jQuery gives you lots of power without miring you in JavaScript's oddities.
Third, if your goal is to avoid having to endlessly duplicate the same basic structure for all (or many) of your pages, consider using a templating system. Templating systems allow you to plug in specific content into scaffolds containing the common elements of your site. If it sounds complicated, it's because I haven't explained it well. Google it and you'll find lots of great resources.
Relying on JavaScript for navigation means your site won't be indexed properly by search engines and will be completely unusable to someone with JavaScript turned off. It is increasingly common--and acceptable--to rely on JavaScript for basic functionality. But your site should, at minimum, provide discrete pages with sensible and durable URLs.
Now, all that said, let's get to your question. Here's one way of implementing it in jQuery. It's not the snazziest, tightest implementation, but I tried to make something very readable:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>jQuery Example</title>
<style type="text/css" media="all">
/* all content divs should be hidden initially */
.content {
display: none;
}
/* make the navigation bar stand out a little */
#nav {
background: yellow;
padding: 10px;
}
</style>
</head>
<body>
<!-- navigation bar -->
<span id="nav">
about me |
copyright notice |
a story
</span>
<!-- content divs -->
<div class="content" id="about_me">
<p>I'm a <strong>web developer</strong>!</p>
</div>
<div class="content" id="copyright">
<p>This site is in the public domain.</p>
<p>You can do whatever you want with it!</p>
</div>
<div class="content" id="my_story">
<p>Once upon a time...</p>
</div>
<!-- jquery code -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
<script>
// Wait for the document to load
$(document).ready(function() {
// When one of our nav links is clicked on,
$('#nav a').click(function(e) {
div_to_activate = $(this).attr('href'); // Store its target
$('.content:visible').hide(); // Hide any visible div with the class "content"
$(div_to_activate).show(); // Show the target div
});
});
</script>
</body>
</html>
Ok, hope this helps! If jQuery looks attractive, consider starting with this tutorial.
Your main problem with your example (besides that innerHTML is not always supported) is that < and > can easily break HTML if they're not escaped. Use < and > instead. (Don't worry, they'll be decoded before the JS sees them.) You can use the same trick with quotes (use " instead of " to get around quote issues).