jQuery UI (RAD/GUI) form designer - javascript

Well, I'm working on a visual form designer and decided to use jQuery UI as both the end form widgetset as well as the widgetset for the designer itself.
My main concern is to make jQuery wigets "read-only". I've had the following idea:
<style type="text/css">
.widget-wrap { position: relative; }
.widget-overlay { position: absolute; left:0; right:0; top:0; bottom:0; /*maybe z-index as well*/ }
</style>
<div class="widget-wrap" id="wdt1">
<button class="jquery-widget">Hello World!</button>
<div class="widget-overlay"><!----></div>
</div>
<script type="text/javascript">
$(function() {
$("button.jquery-widget").button();
});
function widgetLock(){
$("#wdt1 .widget-overlay").show();
}
function widgetRelease(){
$("#wdt1 .widget-overlay").hide();
}
</script>
Hope my example makes sense :)
My questions are;
does this sound good to you?
do you know of a better or another way?
do you see any possible issues with it?

I would say this is a very bad idea in that 1) you may find the overlay in a weird place in certain browser resolutions etc and 2) you can still tab to the item.
Much better to either;
Hide the element
Disable the element
Replace text boxes with labels, buttons with graphics etc.
Disable the click on the button
edit
You can use jQuery to unbind events on elements and then you can re-bind them later on.

If I was to build a form designer I'd make all elements divs with an image of the actual widget as a css background image, that way you can drag the widget representation around the form without activating it or having any of the overlay problems.
If you really wanted to make it look like the finished product you can have the actual widget nested inside the div but invisible when the users mouse is within the div, when the user moves the mouse out of the div then set the widget visible again.
DC
Yes I was aware that the background image would look wrong when stretched. So I thought about it on the way home. A better technique would be to create a widget sandwich
place the widget between 2 divs the bottom div controls the size and position the top prevents the widget from activating
<html>
<head>
<script language="JavaScript" type="text/JavaScript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script language="JavaScript" type="text/JavaScript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.9/jquery-ui.js"></script>
<style type="text/css">
<!--
.widget {
height: 100%;
width: 100%;
}
.widget_overlay {
border: thin solid #FF0000;
position: absolute;
top: 1px;
left: 1px;
right: 1px;
bottom: 1px;
right: 1px;
visibility:visible
}
.sz_controller {
position:absolute;
width:365px;
height:61px;
left: 142px;
top: 75px;
}
-->
</style>
<script language="JavaScript" type="text/JavaScript">
function ShowHide(button,id){
elem = document.getElementById(id)
if (elem.style.visibility=='hidden') {
elem.style.visibility='visible';
button.value="Hide Overlay";
} else {
elem.style.visibility = 'hidden';
button.value="Show Overlay";
}
}
</script>
</head>
<body>
<input type="button" name="Button" value="Hide Overlay" onClick="ShowHide(this,'widget_overlay')">
<div id="draggable" class="sz_controller" style=""><select class="widget" name="test">
<option>test 1</option>
<option>test 2</option>
<option>test 3</option>
</select><div id="widget_overlay" class="widget_overlay"></div></div>
<script>
$(function() {
$( "#draggable" ).draggable();
});
</script>
</body>
</html>
The above will work in firefox
Clicking the button hides the overlay div allowing testing of the widget, You can drag the object around the screen, no resizing logic has been implemented.
DC

Related

HTML/JavaScript Expand buttons/divs when hovering over

I know the onmouseover and onmouseout so that they can run a function when hovered over on when not being hovered over but I don't know how to make them expand. I have made dropdown boxes, but I can't get them to expand.
EX:
123 [Not Hovering]
123456789123 [During Hover]
I've Tried This:
<!DOCTYPE html>
<head>
</head>
<body>
<p id="exp" onmouseover="over()" onmouseout="out()" style="background- color: #FFD700;width: 100px;height: 250px;">
Expand Me!
</p>
<button onclick="run()">Run</button>
<script type="text/javascript">
function over() {
document.getElementById("exp").style.width = "250px";
}
function out() {
document.getElementById("exp").style.width = "100px";
}
</script>
<div id="x" style="background-color: #0FF"> </div>
</body>
</html>
but I want it to come out and go back in slowly not instantly, and I'm sure there is a better way to do this because I don't want to go pixel by pixel to get it to go slower because that would lagg the webpage
I think a CSS transition would be best for this, no JS needed.
div {
width: 25px;
overflow: hidden;
transition: width 1s;
}
div:hover {
width: 100%;
}
<div>123456789123</div>

Why is my jQuery toggle not working?

I'm trying to set up a side menu and having some trouble with the jQuery Toggle. Everything else seems to function fine. I did try for a about 2 hours before posting here, so been getting a little frustrated (seeing how this is pretty basic stuff). Any suggestions?
Below is the format and exact order of my page layout, I only added separator text ("The side menu", "Image I click..", etc.) to make reading/understanding easier. Any help would be greatly appreciated.
The side menu:
<div id="SideMenu" class="sidenav">
<img class="CloseBtn" src="./wht_menu.png" />
Link 1
Link 2
Link 3
Link 4
Link 5
</div>
Image I click to open the menu:
<img class="OpenBtn" src="./blk_menu.png" />
The rest of my page:
<div id="main">
My main page content goes here...
</div>
My CSS & jQuery:
<!--Slider Menu-->
<script>
$(".OpenBtn").click(function() {
$("#SideMenu").fadeToggle("fast", "swing");
});
</script>
<style>
#SideMenu{
width: 250px;
display: none;
}
</style>
You need to wrap the jQuery in this block (docs):
$( document ).ready(function() {
$(".OpenBtn").click(function() {
$("#SideMenu").fadeToggle("fast", "swing");
});
});
Working example using your code:
http://codepen.io/anon/pen/xEaqqA
There is a possibility that jQuery not loaded on page at the time.
<script>
(function($){
$(document).ready(function(){
$(".OpenBtn, .CloseBtn").click(function() {
$("#SideMenu").fadeToggle("fast", "swing");
});
});
})(jQuery);
</script>
Thanks for your help everyone! Although pivemi's answer was not the solution, a deeper review of his codepen link got things working, my doc wasn't calling on the jQuery library. Adding this to the top was my solution:
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
</head>
Your CSS could look like this:
.menu {
position: fixed;
height: 100%;
width: 272px;
padding-bottom: 50px;
overflow: auto;
box-shadow: 0 0 10px 0 rgba(0,0,0,.75);
background-color: #fff;
z-index: 999;
display: none;}
And your jQuery script:
$(document).ready(function(){
$('.show-menu').click(function(){
fade_menu();
});
$('.menu-item').click(function(){
fade_menu();
});});});
function fade_menu(){
$('.menu').fadeToggle("fast");
}

while visible how do i make this dialog prevent access to rest of the page content?

im trying to make a dialog such that while it is visible, it prevents access to page content. if i click accept the dialog should disappear is never re-presented on subsequent visits. if a disagree it should redirection to another site, and continually represent the dialog on next visits, im having a lot of trouble with this i have the outline done but im having trouble to implement its functions.
this is what i have done
<!DOCTYPE html>
<body>
<div id= Cooky>
<h2>Warning</h2>
<p>site-usage requires the user’s acceptance of cookie usage before progressing.</p>
<button id="button" onclick="toggleDiv('Cooky');">agree</button>
<button id="button" onclick="toggleDiv('Cooky');">diagree</button>
</div>
<div>
this is the rest of the wesbite<br>
this is the rest of the wesbite<br>
this is the rest of the wesbite<br>
</div>
</body>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script type="text/javascript">
function toggleDiv(divId) {
$("#"+divId).toggle();
}
</script>
the rest of the code is on jsfiddle: https://jsfiddle.net/a02ma3x5/
please have a look
thanks for your help in advance
You can try with overlay, see jsfiddle
<div class="overlay active">
.overlay.active {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: #000;
opacity: 0.8;
filter: alpha(opacity=80);
z-index:1;
}
$('.overlay').toggleClass('active');

Writing a JavaScript function to open an image in (css)pop up with a close button?

I am a new HTML developer, so can someone please describe briefly how to write a JavaScript function to open an image in (css) pop up with a close button?
Just to get you started I've set up an simple example for you, try it out here: http://www.lunarailways.com/demos/popup.html
<html>
<head>
<style>
#popup {
border: 1px solid gray;
border-radius: 5px 5px 5px 5px;
float: left;
left: 50%;
margin: auto;
position: fixed;
top: 200px;
z-index: 9999;
}
</style>
</head>
<body>
<h1>Your page</h1>
Open Image 1
Open Image 2
Open Image 3
<div id="popup" style="display:none">
<a id="popup-close" href="" class="button">Close</a>
<p>
<img id="image-placeholder" src="">
</p>
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.js"></script>
<script type="text/javascript">
$(document).ready( function() {
$(".popup-open").click( function(e) {
$("#popup:visible").hide(); //hide popup if it is open
e.preventDefault(); // don't follow link
$("#image-placeholder").attr("src", $(this).attr("href")); // replace image src with href from the link that was clicked
$("#popup").fadeIn("fast"); //show popup
});
$("#popup-close").click( function(e) {
e.preventDefault();
$("#popup").fadeOut("fast");
});
});
</script>
</body>
</html>
FanyBox, which is uses the jQuery library is the right tool for that.
In a simple way,
- place anchor and image tags in a div container.
- set display attribute of the div to "none".
- create displayMyPopup and closeMyPopup functions in js.
- set anchor's onclick attribute to closeMyPopup.
- in displayMyPopup function, set the div's display attribute to "block"
- in closeMyPopup function, set the div's display attribute to "none"
or you can use jquery's show/hide functions.
I guess jQuery library is a good start. Start with defining your HTML markup and then google image galleries and see what fits your bill.
Something like this:
<ul class="gallery">
<li><img src="path-small-image" alt="thumbnail" /></li>
</ul>

Display image when ads content is removed

I placed a piece of ads code in a div and at the bottom of page, I have javascript code that checks for the offsetHeight size of the div. If "0" is returned, I could safely assume that the ads has been chewed by ad blockers
What I'm trying to do is, I want an image to appear in the spot where the ads was supposed to be showing when the ads was blocked.
Any idea how to do this?
Edit: Forgot to show the codes
<div id="div_bleh">
ads goes here
</div>
<script type="text/javascript">
function check_blehsize()
{
if (document.getElementById("div_bleh").offsetHeight == 0)
// do stuff
}
window.onload = check_blehsize;
</script>
Here's an example which I tested against a very common ad blocker - Firefox's Adblock Plus (using the EasyList filter):
Live Demo (edit)
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
.innocent-class {
background: url(http://www.google.com/images/logos/ps_logo2.png);
width: 240px;
height: 400px
}
.justForTesting, .advertise_ads {
width: 240px;
height: 400px;
background: #fff
}
</style>
</head>
<body>
<div class="innocent-class"> <!-- just don't call it "advertContainer" :) -->
<div class="advertise_ads justForTesting">
advert here!
</div>
</div>
</body>
</html>
When Adblock Plus finds an element with a class (for example) .advertise_ads, it will hide that element.
If it does, the "please don't block my ads!" background-image (in this case, the Google logo) from the parent element will be visible.
If the advert isn't blocked, the advert will cover the replacement image.
Try changing advertise_ads to something else such as sdpfjsdfjp, and the advert will be visible.
I imagine this technique will also work with most other ad blockers.
You can add a class to that div with javascript(jquery in example below),
for example,
adContainer = $(".ad-container");
if ( $(".ad-container").height() == 0 ) {
adContainer.addClass("no-ads");
}
and the css will be
.no-ads {
background: url(the_picture.jpg) no-repeat 0 0;
width: ?px;
height: ?px;
}
Assuming you know the size of the adverts you will be displayed, which normally you do.
<div class="advert">
<!-- Adverts go here -->
</div>
.advert {
background-image: url(blah);
width: 120px;
height: 250px;
}
.advert > * {
background-color: white;
}
When the advert gets chewed up by an ad blocker wouldn't this content show instead. Just an idea, I've never personally tried to get around an ad blocker.

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