我有一个可拖动的#box
div,我可以将其放在多个可放置的.ru
div之一上。 #box
的高度约为.ru
div高度的3倍,但是,我正在使用tolerance
的{{1}}选项,但似乎没有任何内容适合我想要的。
我希望.droppable
根据#box
的前三分之一超过其中一个droppable而悬停在其中一个dropable上。
我尝试使用#box
并设置tolerance: pointer
选项.draggable()
,但这会让cursorAt: {top: 15}
在启动拖动时跳转到新位置,我不会想。
我现在正在尝试从#box
的顶部添加一个子div #test
15px,我想知道是否有一种方法可以在{{1}上激活鼠标悬停当#box
超过.ru
时?或者,或者,有没有一种好的方法可以让hovering激活,因为我已经描述过不使用子div?
FIDDLE: https://jsfiddle.net/joL53wkq/4/
HTML:
#test
CSS:
.ru
JS:
<div id="containment">
<div id="box">
<div id="test">
</div>
</div>
</div>
答案 0 :(得分:3)
管理公差的功能称为 intersect ,您可以重新定义它并添加自定义公差选项。这样的东西似乎有用,它可能需要一些调整和测试,但它应该给你一些想法:
$.ui.intersect = function(draggable, droppable, toleranceMode) {
if (!droppable.offset) {
return false;
}
var draggableLeft, draggableTop,
x1 = (draggable.positionAbs || draggable.position.absolute).left,
y1 = (draggable.positionAbs || draggable.position.absolute).top,
x2 = x1 + draggable.helperProportions.width,
y2 = y1 + draggable.helperProportions.height,
l = droppable.offset.left,
t = droppable.offset.top,
r = l + droppable.proportions.width,
b = t + droppable.proportions.height;
switch (toleranceMode) {
case "custom":
//you can define your rules here
return (l < x1 + (draggable.helperProportions.width / 2) && // Right Half
x2 - (draggable.helperProportions.width / 2) < r && // Left Half
t < y1 && // Bottom Half
b > y1 + 15 ); // Top Half
case "fit":
return (l <= x1 && x2 <= r && t <= y1 && y2 <= b);
case "intersect":
return (l < x1 + (draggable.helperProportions.width / 2) && // Right Half
x2 - (draggable.helperProportions.width / 2) < r && // Left Half
t < y1 + (draggable.helperProportions.height / 2) && // Bottom Half
y2 - (draggable.helperProportions.height / 2) < b ); // Top Half
case "pointer":
draggableLeft = ((draggable.positionAbs || draggable.position.absolute).left + (draggable.clickOffset || draggable.offset.click).left);
draggableTop = ((draggable.positionAbs || draggable.position.absolute).top + (draggable.clickOffset || draggable.offset.click).top);
return isOverAxis( draggableTop, t, droppable.proportions().height ) && isOverAxis( draggableLeft, l, droppable.proportions().width );
case "touch":
return (
(y1 >= t && y1 <= b) || // Top edge touching
(y2 >= t && y2 <= b) || // Bottom edge touching
(y1 < t && y2 > b) // Surrounded vertically
) && (
(x1 >= l && x1 <= r) || // Left edge touching
(x2 >= l && x2 <= r) || // Right edge touching
(x1 < l && x2 > r) // Surrounded horizontally
);
default:
return false;
}
};
for(i=1; i<20; i++){
$("#containment").append("<div class='ru'>")
}
$( "#box" ).draggable({
revert: "invalid",
});
$( ".ru" ).droppable({
hoverClass: "hover",
tolerance:"custom",
drop: function(event, ui) {
ui.draggable.position({
of: $(this),
my: 'left top',
at: 'left top'
});
}
});