Preventing images and text to be selected - html

I have an image being hacked in as a background image (as shown here). I've noticed that if I drag my mouse over it though, it selected the image so that it can't be deselected. I've tried the following code to no avail:
<style type="text/css">
html, body {
height: 100%;
margin: 0;
padding: 0;
}
img#bg {
position:fixed;
top:0;
left:0;
width:100%;
height:100%;
}
#content {
position:relative;
z-index:1;
top:0px;
left:0px;
}
*.unselectable {
-moz-user-select: -moz-none;
-khtml-user-select: none;
-webkit-user-select: none;
-o-user-select: none;
user-select: none;
}
</style>
Any ideas?

Add this to your style sheet
.selectDisable {
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-o-user-select: none;
user-select: none;
}
.selectEnable {
-webkit-user-select: text;
-khtml-user-select: text;
-moz-user-select: text;
-o-user-select: text;
user-select: text;
}
Just add the class selectDisable to the element you want to prevent from being selected.
The drag effect occurs on webkit(chrome, safari, opera). It does not happen on Firefox.
Don't this apply to your whole document if you have textual content because then you won't be able to select text, which is not very user-friendly.
You could also prevent dragging by adding another empty div on top of your image with the same selectDisable class.
Here is a working example:
http://jsfiddle.net/xugy6shd/3/

draggable="false" worked for me

If you load image as div's background you can't select it.
EDIT
<div style="background-image: url(../images/test-background.gif); height: 200px; width: 400px; border: 1px solid black;"> </div>

If you are using jQuery I've written a tiny jQuery plugin - wrapper that does pretty much what ppumkin wrote:
(plugin is in js part along with an example usage) http://jsfiddle.net/gryzzly/HtvB8/

Related

Odd behaviour of clickable <div> on Touch?

So first of all, thank you for reading and helping me out.
I've spent the last 4 hours on the web searching for a solution for my strange problem.
Problem
I create a <div> with (click) action. Style it with CSS classes, :hover, :active and :focus. When I click it with mouse, everything is good. But when I touch it with a touchscreen, a oddly gray overlay appears (see the linked GIFs)!!
Behaviour when mouse-clicked
Behaviour when touched
Here is a snippet like my code:
#btn-container {
margin: 5px;
text-decoration: none;
cursor: pointer;
float: left;
border-radius: 25px;
border: none;
transition: 0.3s;
background-color: rgb(230,230,230);
color: black;
}
#btn-container:hover {
background-color: rgb( 200,200,200 );
}
#btn-container:active {
background-color: rgb( 150,150,150 );
transition: 0s;
}
#btn-container:focus {
outline: 0;
}
.standard-btn {
padding: 12px 20px;
display: inline-block;
}
html {
/* Prevent user to select text */
-webkit-touch-callout: none; /* iOS Safari */
-webkit-user-select: none; /* Safari */
-khtml-user-select: none; /* Konqueror HTML */
-moz-user-select: none; /* Firefox */
-ms-user-select: none; /* Internet Explorer, Edge */
user-select: none; /* Non prefixed version: Chrome, Opera */
}
<div id="btn-container" class="standard-btn">Touch me</div>
PS: I'm developing in Angular. I've tested this strange behaviour on Chrome for Android, Safari on iOS, Chrome, Edge, IE on Windows.
The oddity is that, for example, on JSFiddle (here) or here on StackOverflow this doesn't happen. And it doesn't happen also on another Angular app of mine.... and I wasn't able to find out WHY, CSS/HTML/JS are exactly the same between the two apps. That's crazy.
Ok, solved. I'll post here the solution for future reference.
I just needed to add the property -webkit-tap-highlight-color: transparent on the main button class. As it is here described, this is not a standard property. But it worked!
Referencing to the code snippet from the question, I've modified the #btn-container class, in this way:
#btn-container {
margin: 5px;
text-decoration: none;
cursor: pointer;
float: left;
border-radius: 25px;
border: none;
transition: 0.3s;
background-color: rgb(230,230,230);
color: black;
-webkit-tap-highlight-color: transparent; /* <-- this is new */
}

Stop user-selection in Bootstrap navbar

I would like to prevent user-selection to be possible on a Boostrap navbar, such as :
http://getbootstrap.com/examples/navbar-fixed-top/
How to stop user-selection ?
I tried user-select: none; but it fails if you do CTRL-A.
Note : I don't want to stop user to copy text on the page, but I want to provide better user experience by avoiding selection of navbar elements.
In bootstrap 4.5 and above, you can just use class="user-select-none"
You could do it like this:
Bootply - DEMO
.navbar {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
-o-user-select: none;
user-select: none;
}
More Info:
Mozilla MDN user-select
CSS-Tricks user-select
Solution 2: Disable user selection when press CTRL+A
You could also do it by set the ::selection background color to none
Bootply - DEMO
div.navbar *::-moz-selection {
background: none !important;
}
div.navbar *::selection {
background: none !important;
}
.navbar {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
-o-user-select: none;
user-select: none;
}

Disable html tooltip on d3 bubble chart?

If you look at this example: http://bl.ocks.org/mbostock/4063269
When you mouseover the circle text, there is an html tooltip that pops up. Is there any way to disable this?
I thought using css would resolve the issue:
body {
font-family: Trebuchet, sans-serif;
color: black;
font-size: 14px;
font-weight: normal;
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
but no luck.
The tooltip is shown by the browser based on the title attribute. If you remove the line of JavaScript that adds this, the tooltip will no longer appear.

Center with Cursor property (like a crosshair)?

I am making a jquery shooting/aim game and I'm not entirely sure how to make the focus of the mouse shift to the center (i.e. the crosshair property), like so (the bottom line):
#num {
position: relative;
height: 20px;
left: 45%;
top: -40px;
text-align: center;
width: 10%;
background: gray;
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
cursor: url(c_hair.png), crosshair; /* HERE IS THE PROBLEM */
}
THANKS!!!
UPDATE
I am trying to make the focal point of the cursor image in the center (with the crosshair or 'precision' cursor, for example), not the default top-left (with the pointer, for example).
A friend told me that this is a solution, and it works
cursor: url(c_hair.png), auto x y
...would offset the cursor first by x pixels then by y pixels.
Since you have image why do you need crosshair?
cant you use this
cursor: url(c_hair.png), auto;

How can I prevent these 'selected' artifacts on HTML elements?

Sometimes clicking isn't perfect, the mouse might move slightly and the button/elements end up with little 'selected' artifacts around them as seen here:
Of course clicking somewhere gets rid of it, but it's kind of annoying and looks crappy. Is there any way I can disable this so that the app seems more solid?
HTML/CSS:
<td id="controls">
<span id="ccw" class="menuitem"></span>
<span id="cw" class="menuitem"></span>
<span id="zin" class="menuitem"></span>
<span id="zout" class="menuitem"></span>
</td>
#cw{
background-image:url('icons/rotatecw.png');
}
#ccw{
background-image:url('icons/rotateccw.png');
}
#zin{
background-image:url('icons/zoom_in.png');
margin-top: 2px;
}
#zout{
background-image:url('icons/zoom_out.png');
margin-top: 2px;
}
.menuitem{
background-repeat:no-repeat;
width: 32px;
height: 16px;
display: inline-block;
}
In many browsers (except Opera and IE before IE10), you can use user-select with its various browser-prefixes. See MDN docu for details.
.controls {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
user-select: none;
}