我有一个HTML表格,我正在尝试使用jQuery UI可排序窗口小部件来重新排序行。我设置了可排序的axis: 'y'
,使用helper
函数在拖动行时保留行的宽度,并将containment
设置为父表:
jQuery(function($) {
$("#rows").sortable({
handle: ".handle",
axis: "y",
containment: "#main-table",
helper: function(e, row) {
// From http://www.paulund.co.uk/fixed-width-sortable-tables.
// Sets the width of each cell to be its original width.
// This prevents the row collapsing into a narrower stub when being dragged.
row.children().each(function() {
$(this).width($(this).width());
});
return row;
}
});
});
但是,当存在具有多个行高的行时,包含不会按预期运行:当拖动较大的行时,表的高度会减小,并且包含会收缩得更多,从而无法移动大行在桌子底部。其他行工作正常。
可以在此处找到显示此行为的JSFiddle:https://jsfiddle.net/AndrewBennet/rc5pnazc/3/
这是已知/预期的行为吗?有没有解决方法?
答案 0 :(得分:7)
包含的设置方式是,当拖动开始时,计算元素的坐标并将其推送到数组,然后使用该数组查看是否应在鼠标移动时进行拖动。在您的情况下,会发生这种计算是在从表中删除行之后进行的,因此包含值不正确。
您可以做的一件事是在start事件上调整这些值,使它们在从计算中删除行之前匹配表的状态。您可以通过可排序的实例方法访问它们。
如果您想要更精确,您也可以调整此包含属性的顶部坐标,以便考虑点击偏移。
就像这样:
jQuery(function($) {
$("#rows").sortable({
handle: ".handle",
axis: "y",
containment: '#main-table',
start: function(e, ui) {
// get the instance of the sortable.
// instance method is new to jquery ui 1.11, for previous versions
// you can use $(this).data()['ui-sortable'];
var sort = $(this).sortable('instance');
// this makes the placeholder fit with the row that's being dragged
ui.placeholder.height(ui.helper.height());
// containment property of the sortable instance is not the same
// as the containment option. The property is calculated
// from the option. You need to adjust bottom coordinates
// to take into account the row you just removed from it and the click offset.
sort.containment[3] += ui.helper.height() * 1.5 - sort.offset.click.top;
// Since your handle is centered, and pointer coordinates are used
// for sortable, but top coordinates are used for containment
// you can have issues with top row. Adjusting with the click offset
// will resolve the issue.
sort.containment[1] -= sort.offset.click.top;
},
helper: function(e, row) {
// From http://www.paulund.co.uk/fixed-width-sortable-tables.
// Sets the width of each cell to be its original width.
// This reverts the default behaviour of the row collapsing into a narrower stub when being dragged.
row.children().each(function() {
$(this).width($(this).width());
});
return row;
}
});
});
答案 1 :(得分:0)
jQuery(function($) {
$("#rows").sortable({
handle: ".handle",
axis: "y",
containment: "#main-table",
helper: function(e, row) {
row.children().each(function() {
$(this).width($(this).width());
});
return row;
},
start: function (e, ui) {
var sort = $(this).sortable('instance');
sort.containment[3] += ui.helper.height();
}
});
});