Disable Drag and Drop on HTML elements?
I'm working on a web application for which I'm attempting to implement a full featured windowing system. Right now it's going very well, I'm only running into one minor issue. Sometimes when I go to drag a part of my application (most often the corner div of my window, which is supposed to trigger a resize operation) the web browser gets clever and thinks I mean to drag and drop something. End result, my action gets put on hold while the browser does its drag and drop thing.
Is there an easy way to disable the browser's drag and drop? I'd ideally like to be able to turn it off while the user is clicking on certain elements, but re-enable it so that users can still use their browser's normal functionality on the contents of my windows. I'm using jQuery, and although I wasn't able to find it browsing the docs, if you know a pure jQuery solution it would be excellent.
In short: I need to disable browser text selection and drag-and-drop functions while my user has the mouse button down, and restore that functionality when the user releases the mouse.
Solution 1:
This works. Try it.
<BODY ondragstart="return false;" ondrop="return false;">
Solution 2:
Try preventing default on mousedown event:
<div onmousedown="event.preventDefault ? event.preventDefault() : event.returnValue = false">asd</div>
or
<div onmousedown="return false">asd</div>
Solution 3:
You can disable dragging simply by using draggable="false" attribute.
https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/draggable http://www.w3schools.com/tags/att_global_draggable.asp
Solution 4:
This might work: You can disable selecting with css3 for text, image and basically everything.
.unselectable {
-moz-user-select: -moz-none;
-khtml-user-select: none;
-webkit-user-select: none;
/*
Introduced in IE 10.
See http://ie.microsoft.com/testdrive/HTML5/msUserSelect/
*/
-ms-user-select: none;
user-select: none;
}
Of course only for the newer browsers. For more details check:
How to disable text selection highlighting using CSS?