So far I have a circle with a marker.
I would like to grab and drag the marker around the circle, however the current functionality only nudges the marker when you click it.
What changes can I make to the code so that the marker can be dragged around the circle while the mouse is held down?
Note
If you could update the fiddle with your solution I would greatly appreciate it.
changed some code
$(document).ready(function(){
$('#marker').on('mousedown', function(){
$('body').on('mousemove', function(event){
rotateAnnotationCropper($('#innerCircle').parent(), event.pageX,event.pageY, $('#marker'));
});
});
});
also add this code
$('body').on('mouseup', function(event){ $('body').unbind('mousemove')});
in the function
this is the jsfiddle http://jsfiddle.net/sandeeprajoria/x5APH/11/
To do anything of this sort:
On mousedown
on the desired element, set:
mousemove
event on the document to update the position of the target mouseup
event on the document to remove the mousemove
and mouseup
events you just set. Example in plain JS:
elem.onmousedown = function() {
document.body.onmousemove = function(e) {
e = e || window.event;
// do stuff with e
};
document.body.onmouseup = function() {
document.body.onmousemove = document.body.onmouseup = null;
};
};
Personally I like to improve this further by creating a "mask" element over the whole page to capture events, so that (for example) dragging a selection or image does not trigger default browser actions (which are strangely immune to all event cancelling methods in this case...)
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