设置轴取决于可拖动方向jQuery可拖动 [英] Set axis depending draggable direction jQuery draggable
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问题描述
如何根据可拖动方向(在初始化之后)设置轴?
How can the axis be set depending it's draggable direction (after init)?
如果是左右拖动,则为x,如果是上下拖动,则为y.
If it's dragged left-right it will be x, y if dragged up-down.
$("#belt").draggable({
handle: "li",
axis: "y",
start: function() {
//I want to be dragged in the axis i belong which should be x....
},
});
推荐答案
您首先使用距离限制运动,以初步了解用户正在移动的方向,然后设置轴限制.
You use distance to constrain the motion initially to get the initial read of which direction the user is moving and then set the axis limitation.
var x, y;
$("#belt").draggable({
start: function(event) {
x = event.originalEvent.pageX;
y = event.originalEvent.pageY;
},
drag: function(event) {
if (x && y) {
axis = Math.abs(event.originalEvent.pageX - x) > Math.abs(event.originalEvent.pageY - y) ? 'x' : 'y';
$("#belt").draggable('option', 'axis', axis);
x = y = null;
}
},
stop: function() {
x = y = null;
$("#belt").draggable('option', 'axis', false);
},
distance: 20
});
这是一个小提琴: http://jsfiddle.net/jhchen/B7J2E/
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