Issue
I've been working on a UI recently and I really like to use Flexbox CSS for control of the layout. I needed a way to make the boxes I have be sortable and draggable.
I started by trying out jQueryUI's sortable but it doesn't seem to work very well with flexbox. It does sort but I think its got some calculation errors in regards to when its droppable in the new location? Either that or I'm doing something wrong. Either way I'll provide my code and a JSFiddle so you can see for yourself the weirdness. The behavior I'm looking for is nice clean droppable placeholders and for the alignment to be like how jQueryUI's example is. To test click and drag on the legends. Also try dragging the left most item to the far right.
How can I solve this such that it will work with Flexbox?
JSFiddle: https://jsfiddle.net/95pv6cn2/5/
Compare this with jQueryUI and how its supposed to operate (https://jqueryui.com/sortable/#placeholder)
HTML
<body>
<div class="header">
<div class="logo">Sample Login System</div>
<div class="logoutarea">
<div class="loggedInAs">Logged in as (joe).</div>
<div class="logout">Logout</div>
</div>
</div>
<div class="content">
<div class="actionarea" id="sortable">
<div class="statusset">
<fieldset>
<legend>Status:</legend>
<div class="startbtn" status="off">Start Taking Calls/Text</div>
<div class="callstatusarea">
<span class="callstatusheader">Call/Text Status:</span>
<span class="status" status="free">Free</span>
</div>
</fieldset>
</div>
<div class="textmessageset">
<fieldset>
<legend>Send Outbound Text Message:</legend>
<div class="inputline sendtextfrom">
<div class="label">Send Text From:</div>
<select class="fromselect">
<option value="+19998887777">+19998887777</option>
<option value="+16665554444">+16665554444</option>
</select>
</div>
<div class="inputline sendtextto">
<div class="label">Send Text To:</div>
<input class="phoneinput sendtexttoinput" type="text" placeholder="To Phone Number..."/>
</div>
<div class="inputline sendtextresponsebackto">
<div class="label">Response Number: </div>
<input class="phoneinput sendtextresponsebackinput" type="text" placeholder="Your Phone Number..." title="(If no response back number given or response back number known to be busy in the system, then the system will automatically determine who to send text to)"/>
</div>
<div class="inputline sendtextwithmessage">
<div class="label">With Message:</div>
<textarea class="sendtextwithmessage_textarea" placeholder="Enter text message here..."></textarea>
</div>
<div class="inputline sendtextwithpicture">
<div class="label">Media URL:</div>
<input class="sendtextpictureurlinput" type="text" placeholder="http://a.com/image.jpg"/>
</div>
<button class="sendtextbtn">Send Outbound Text</button>
</fieldset>
</div>
<div class="otherset">
<fieldset>
<legend>Some Other Random Set:</legend>
Here is some text
</fieldset>
</div>
<div class="callset">
<fieldset>
<legend>Start Outbound Call:</legend>
<div class="inputline sendcallfrom">
<div class="label">Caller ID From:</div>
<select class="fromcalleridselect">
<option value="+19998887777">+19998887777</option>
<option value="+16665554444">+16665554444</option>
</select>
</div>
<div class="inputline sendcallto">
<div class="label">Send Call To:</div>
<input class="phoneinput sendcalltoinput" type="text" placeholder="To Phone Number..."/>
</div>
<div class="inputline andMyPhone">
<div class="label">Initiate To My Phone:</div>
<input class="phoneinput initiatecalltomyphoneinput" type="text" placeholder="My Phone Number..."/>
</div>
<button class="inputline startoutboundcallbtn">Start Outbound Call</button>
</fieldset>
</div>
</div>
</div>
<div class="footer">
© 2017 Sample Company LLC
</div>
</body>
CSS
/*! normalize.css v3.0.3 | MIT License | github.com/necolas/normalize.css */
/**
* 1. Set default font family to sans-serif.
* 2. Prevent iOS and IE text size adjust after device orientation change,
* without disabling user zoom.
*/
html {
font-family: sans-serif;
/* 1 */
-ms-text-size-adjust: 100%;
/* 2 */
-webkit-text-size-adjust: 100%;
/* 2 */
}
/**
* Remove default margin.
*/
body {
margin: 0;
}
/* HTML5 display definitions
========================================================================== */
/**
* Correct `block` display not defined for any HTML5 element in IE 8/9.
* Correct `block` display not defined for `details` or `summary` in IE 10/11
* and Firefox.
* Correct `block` display not defined for `main` in IE 11.
*/
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
menu,
nav,
section,
summary {
display: block;
}
/**
* 1. Correct `inline-block` display not defined in IE 8/9.
* 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera.
*/
audio,
canvas,
progress,
video {
display: inline-block;
/* 1 */
vertical-align: baseline;
/* 2 */
}
/**
* Prevent modern browsers from displaying `audio` without controls.
* Remove excess height in iOS 5 devices.
*/
audio:not([controls]) {
display: none;
height: 0;
}
/**
* Address `[hidden]` styling not present in IE 8/9/10.
* Hide the `template` element in IE 8/9/10/11, Safari, and Firefox < 22.
*/
[hidden],
template {
display: none;
}
/* Links
========================================================================== */
/**
* Remove the gray background color from active links in IE 10.
*/
a {
background-color: transparent;
}
/**
* Improve readability of focused elements when they are also in an
* active/hover state.
*/
a:active,
a:hover {
outline: 0;
}
/* Text-level semantics
========================================================================== */
/**
* Address styling not present in IE 8/9/10/11, Safari, and Chrome.
*/
abbr[title] {
border-bottom: 1px dotted;
}
/**
* Address style set to `bolder` in Firefox 4+, Safari, and Chrome.
*/
b,
strong {
font-weight: bold;
}
/**
* Address styling not present in Safari and Chrome.
*/
dfn {
font-style: italic;
}
/**
* Address variable `h1` font-size and margin within `section` and `article`
* contexts in Firefox 4+, Safari, and Chrome.
*/
h1 {
font-size: 2em;
margin: 0.67em 0;
}
/**
* Address styling not present in IE 8/9.
*/
mark {
background: #ff0;
color: #000;
}
/**
* Address inconsistent and variable font size in all browsers.
*/
small {
font-size: 80%;
}
/**
* Prevent `sub` and `sup` affecting `line-height` in all browsers.
*/
sub,
sup {
font-size: 75%;
line-height: 0;
position: relative;
vertical-align: baseline;
}
sup {
top: -0.5em;
}
sub {
bottom: -0.25em;
}
/* Embedded content
========================================================================== */
/**
* Remove border when inside `a` element in IE 8/9/10.
*/
img {
border: 0;
}
/**
* Correct overflow not hidden in IE 9/10/11.
*/
svg:not(:root) {
overflow: hidden;
}
/* Grouping content
========================================================================== */
/**
* Address margin not present in IE 8/9 and Safari.
*/
figure {
margin: 1em 40px;
}
/**
* Address differences between Firefox and other browsers.
*/
hr {
box-sizing: content-box;
height: 0;
}
/**
* Contain overflow in all browsers.
*/
pre {
overflow: auto;
}
/**
* Address odd `em`-unit font size rendering in all browsers.
*/
code,
kbd,
pre,
samp {
font-family: monospace, monospace;
font-size: 1em;
}
/* Forms
========================================================================== */
/**
* Known limitation: by default, Chrome and Safari on OS X allow very limited
* styling of `select`, unless a `border` property is set.
*/
/**
* 1. Correct color not being inherited.
* Known issue: affects color of disabled elements.
* 2. Correct font properties not being inherited.
* 3. Address margins set differently in Firefox 4+, Safari, and Chrome.
*/
button,
input,
optgroup,
select,
textarea {
color: inherit;
/* 1 */
font: inherit;
/* 2 */
margin: 0;
/* 3 */
}
/**
* Address `overflow` set to `hidden` in IE 8/9/10/11.
*/
button {
overflow: visible;
}
/**
* Address inconsistent `text-transform` inheritance for `button` and `select`.
* All other form control elements do not inherit `text-transform` values.
* Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera.
* Correct `select` style inheritance in Firefox.
*/
button,
select {
text-transform: none;
}
/**
* 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
* and `video` controls.
* 2. Correct inability to style clickable `input` types in iOS.
* 3. Improve usability and consistency of cursor style between image-type
* `input` and others.
*/
button,
html input[type="button"],
input[type="reset"],
input[type="submit"] {
-webkit-appearance: button;
/* 2 */
cursor: pointer;
/* 3 */
}
/**
* Re-set default cursor for disabled elements.
*/
button[disabled],
html input[disabled] {
cursor: default;
}
/**
* Remove inner padding and border in Firefox 4+.
*/
button::-moz-focus-inner,
input::-moz-focus-inner {
border: 0;
padding: 0;
}
/**
* Address Firefox 4+ setting `line-height` on `input` using `!important` in
* the UA stylesheet.
*/
input {
line-height: normal;
}
/**
* It's recommended that you don't attempt to style these elements.
* Firefox's implementation doesn't respect box-sizing, padding, or width.
*
* 1. Address box sizing set to `content-box` in IE 8/9/10.
* 2. Remove excess padding in IE 8/9/10.
*/
input[type="checkbox"],
input[type="radio"] {
box-sizing: border-box;
/* 1 */
padding: 0;
/* 2 */
}
/**
* Fix the cursor style for Chrome's increment/decrement buttons. For certain
* `font-size` values of the `input`, it causes the cursor style of the
* decrement button to change from `default` to `text`.
*/
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
height: auto;
}
/**
* 1. Address `appearance` set to `searchfield` in Safari and Chrome.
* 2. Address `box-sizing` set to `border-box` in Safari and Chrome.
*/
input[type="search"] {
-webkit-appearance: textfield;
/* 1 */
box-sizing: content-box;
/* 2 */
}
/**
* Remove inner padding and search cancel button in Safari and Chrome on OS X.
* Safari (but not Chrome) clips the cancel button when the search input has
* padding (and `textfield` appearance).
*/
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
-webkit-appearance: none;
}
/**
* Define consistent border, margin, and padding.
*/
fieldset {
border: 1px solid #c0c0c0;
margin: 0 2px;
padding: 0.35em 0.625em 0.75em;
}
/**
* 1. Correct `color` not being inherited in IE 8/9/10/11.
* 2. Remove padding so people aren't caught out if they zero out fieldsets.
*/
legend {
border: 0;
/* 1 */
padding: 0;
/* 2 */
}
/**
* Remove default vertical scrollbar in IE 8/9/10/11.
*/
textarea {
overflow: auto;
}
/**
* Don't inherit the `font-weight` (applied by a rule above).
* NOTE: the default cannot safely be changed in Chrome and Safari on OS X.
*/
optgroup {
font-weight: bold;
}
/* Tables
========================================================================== */
/**
* Remove most spacing between table cells.
*/
table {
border-collapse: collapse;
border-spacing: 0;
}
td,
th {
padding: 0;
}
/* Main.Less */
.header {
height: 20px;
background: #1e5799;
/* Old browsers */
background: -moz-linear-gradient(top, #1e5799 0%, #2989d8 50%, #207cca 51%, #7db9e8 100%);
/* FF3.6-15 */
background: -webkit-linear-gradient(top, #1e5799 0%, #2989d8 50%, #207cca 51%, #7db9e8 100%);
/* Chrome10-25,Safari5.1-6 */
background: linear-gradient(to bottom, #1e5799 0%, #2989d8 50%, #207cca 51%, #7db9e8 100%);
/* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#1e5799', endColorstr='#7db9e8', GradientType=0);
/* IE6-9 */
text-align: left;
padding: 20px;
color: white;
font-weight: bold;
display: flex;
display: -webkit-flex;
-webkit-align-items: space-around;
align-items: space-around;
}
.footer {
height: 20px;
background: #b3dced;
/* Old browsers */
background: -moz-linear-gradient(top, #b3dced 0%, #29b8e5 50%, #bce0ee 100%);
/* FF3.6-15 */
background: -webkit-linear-gradient(top, #b3dced 0%, #29b8e5 50%, #bce0ee 100%);
/* Chrome10-25,Safari5.1-6 */
background: linear-gradient(to bottom, #b3dced 0%, #29b8e5 50%, #bce0ee 100%);
/* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#b3dced', endColorstr='#bce0ee', GradientType=0);
/* IE6-9 */
text-align: center;
padding: 5px;
}
.logoutarea {
width: 100%;
display: flex;
display: -webkit-flex;
-webkit-align-items: space-around;
align-items: space-around;
text-align: right;
flex-direction: row;
-webkit-justify-content: flex-end;
justify-content: flex-end;
}
.loggedInAs {
-webkit-align-self: center;
align-self: center;
}
.logout {
text-align: right;
cursor: pointer;
padding-left: 30px;
-webkit-align-self: center;
align-self: center;
}
.logout:hover {
color: blue;
}
.logo {
width: 100%;
align-self: center;
-webkit-align-self: center;
}
.error {
color: blue;
}
/* Sticky Footer */
body {
display: flex;
min-height: 100vh;
flex-direction: column;
}
.content {
flex: 1;
}
/* End Sticky Footer */
.startbtn {
display: inline-box;
width: 200px;
cursor: pointer;
text-align: center;
}
.startbtn[status="off"] {
background: #34d960;
background-image: -webkit-linear-gradient(top, #34d960, #139e54);
background-image: -moz-linear-gradient(top, #34d960, #139e54);
background-image: -ms-linear-gradient(top, #34d960, #139e54);
background-image: -o-linear-gradient(top, #34d960, #139e54);
background-image: linear-gradient(to bottom, #34d960, #139e54);
-webkit-border-radius: 28;
-moz-border-radius: 28;
border-radius: 28px;
text-shadow: 1px 1px 3px #666666;
font-family: Arial;
color: #ffffff;
font-size: 20px;
padding: 10px 20px 10px 20px;
text-decoration: none;
}
.startbtn[status="on"] {
background: #e62020;
background-image: -webkit-linear-gradient(top, #e62020, #bd1b1b);
background-image: -moz-linear-gradient(top, #e62020, #bd1b1b);
background-image: -ms-linear-gradient(top, #e62020, #bd1b1b);
background-image: -o-linear-gradient(top, #e62020, #bd1b1b);
background-image: linear-gradient(to bottom, #e62020, #bd1b1b);
-webkit-border-radius: 28;
-moz-border-radius: 28;
border-radius: 28px;
text-shadow: 1px 1px 3px #666666;
font-family: Arial;
color: #ffffff;
font-size: 20px;
padding: 10px 20px 10px 20px;
text-decoration: none;
}
.startbtn:hover[status="off"] {
background: #58a862;
background-image: -webkit-linear-gradient(top, #58a862, #2d472d);
background-image: -moz-linear-gradient(top, #58a862, #2d472d);
background-image: -ms-linear-gradient(top, #58a862, #2d472d);
background-image: -o-linear-gradient(top, #58a862, #2d472d);
background-image: linear-gradient(to bottom, #58a862, #2d472d);
text-decoration: none;
}
.startbtn:hover[status="on"] {
background: #de2a3c;
background-image: -webkit-linear-gradient(top, #de2a3c, #4d2323);
background-image: -moz-linear-gradient(top, #de2a3c, #4d2323);
background-image: -ms-linear-gradient(top, #de2a3c, #4d2323);
background-image: -o-linear-gradient(top, #de2a3c, #4d2323);
background-image: linear-gradient(to bottom, #de2a3c, #4d2323);
text-decoration: none;
}
.callstatusheader {
font-weight: bold;
color: black;
}
.callstatusarea {
font-size: 18px;
padding: 10px;
text-align: left;
}
.callstatusarea .status {
padding-left: 10px;
}
.callstatusarea .status[status="free"] {
color: green;
}
.callstatusarea .status[status="busy"] {
color: red;
}
.callstatusarea .unbusy[status="free"] {
display: none;
font-size: 12px;
cursor: pointer;
padding-left: 20px;
}
.callstatusarea .unbusy[status="busy"] {
display: inline;
font-size: 12px;
cursor: pointer;
padding-left: 20px;
}
.callstatusarea .unbusy:hover {
font-size: 12px;
cursor: pointer;
padding-left: 20px;
color: blue;
}
.actionarea {
display: flex;
flex-wrap: wrap;
}
.actionarea .label {
display: inline-block;
width: 125px;
}
.actionarea input {
padding: 5px;
margin: 5px;
}
.actionarea select {
margin-left: 5px;
}
.actionarea textarea {
padding: 5px;
margin: 5px;
}
.actionarea button {
margin-top: 10px;
}
.actionarea legend {
cursor: pointer;
}
.actionarea .inputline {
margin: 5px;
display: flex;
align-items: center;
}
.actionarea .textmessageset {
display: flex;
padding: 5px;
max-width: 500px;
}
.actionarea .callset {
display: flex;
padding: 5px;
max-width: 500px;
}
.actionarea .otherset {
display: flex;
padding: 5px;
max-width: 500px;
}
.actionarea .statusset {
display: flex;
padding: 5px;
max-width: 500px;
}
.ui-state-highlight {
width: 50px;
}
/*# sourceMappingURL=main.css.map */
JavaScript
$(document).ready(function(){
//@JA - Logout Fuction
$( "#sortable" ).sortable({
placeholder: "ui-state-highlight"
});
$( "#sortable" ).disableSelection();
});
Solution
Use some of sortable's event handlers to create a "ghost" element in place of the element you are moving. This will help preserve the flex calculations.
Example: https://jsfiddle.net/CRHain88/vv636vj4/
$(document).ready(function() {
//@JA - Logout Fuction
// Create a reusable spacer element. I added a background
// style to give indication that there was once something
// there. If you're going to style it with more complex
// design, consider making it have it's own class.
var placeholderElement = jQuery('<div style="background-color: #eee;"></div>');
$("#sortable").sortable({
placeholder: "ui-state-highlight",
// Add it before the element you're dragging.
// This assumes that you can only ever drag one element at a time.
activate: function(event, ui) {
placeholderElement.insertBefore(ui.item[0]);
// Explicitly set the height and width to preserve
// flex calculations
placeholderElement.width(ui.item[0].offsetWidth);
placeholderElement.height(ui.item[0].offsetHeight);
},
// Remove it when you're done dragging.
deactivate: function() {
placeholderElement.remove();
}
});
$("#sortable").disableSelection();
});
Answered By - Christian Hain
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