Allow user copy paste text without triggering modal open in Angular directive

gistfile1.txt

function link(scope, element, attr) {
    var isDragging = false;

    element.addClass('cursor-pointer');

    element.on('mousedown', function(){
        element.on('mousemove', function(){
            isDragging = true;
            element.unbind('mousemove');
        });
    });

    element.on('mouseup', function(){
        var wasDragging = isDragging;
        isDragging = false;
        element.unbind('mousemove');
        if(!wasDragging) {
            $modal.open({
                // some logic
            }).result.then(function (result) {
                // some logic
            });
        }
    });
}