我有一个使用 JQueryUI 和 Isotope 的列表，具有可调整大小、可拖动和可排序的功能。在用户通过单击和拖动调整界面中的元素大小后，我试图重新加载列表。
用户完成拖动后，如何让列表重新调整/重新加载？
代码笔位于http://codepen.io/lucasstarbuck/pen/muBCj
list.isotope({
transformsEnabled: false
, itemSelector: '.isotopey'
, resizable: true
, onLayout: function() {
list.css('overflow', 'visible');
}
});
list.sortable({
cursor: 'move'
//, tolerance: 'intersection' //'pointer' is too janky
, start: function(event, ui) {
//add grabbing and moving classes as user has begun
//REMOVE isotopey so that isotope does not try to sort our item,
//resulting in the item moving around and flickering on 'change'
ui.item.addClass('grabbing moving').removeClass('isotopey');
ui.placeholder
.addClass('starting') //adding the 'starting' class removes the transitions from the placeholder.
//remove 'moving' class because if the user clicks on a tile they just moved,
//the placeholder will have 'moving' class and it will mess with the transitions
.removeClass('moving')
//put placeholder directly below tile. 'starting' class ensures the
//placeholder simply appears and does not 'fly' into place
.css({
top: ui.originalPosition.top
, left: ui.originalPosition.left
})
;
//reload the items in their current state to override any previous
//sorting and to include placeholder, but do NOT call a re-layout
list.isotope('reloadItems');
}
, change: function(event, ui) {
//change only fires when the DOM is changed. the DOM changes when
//the placeholder moves up or down in the document order
//within the sortable container
//remove 'starting' class so that placeholder can now move smoothly
//with the interface
ui.placeholder.removeClass('starting');
//reload items to include the placeholder's new position in the DOM.
//then when you sort, everything around the placeholder moves as
//though the item were moving it.
list
.isotope('reloadItems')
.isotope({ sortBy: 'original-order'})
;
}
, beforeStop: function(event, ui) {
//in this event, you still have access to the placeholder. this means
//you know exactly where in the DOM you're going to place your element.
//place it right next to the placeholder. jQuery UI Sortable removes the
//placeholder for you after this event, and actually if you try to remove
//it in this step it will throw an error.
ui.placeholder.after(ui.item);
}
, stop: function(event, ui) {
//user has chosen their location! remove the 'grabbing' class, but don't
//kill the 'moving' class right away. because the 'moving' class is
//preventing your item from having transitions, you should keep it on
//until isotope is done moving everything around. it will "snap" into place
//right where your placeholder was.
//also, you must add the 'isotopey' class back to the box so that isotope
//will again include your item in its sorting list
ui.item.removeClass('grabbing').addClass('isotopey');
//reload the items again so that your item is included in the DOM order
//for isotope to do its final sort, which actually won't move anything
//but ensure that your item is in the right place
list
.isotope('reloadItems')
.isotope({ sortBy: 'original-order' }, function(){
//finally, after sorting is done, take the 'moving' class off.
//doing it here ensures that your item "snaps" and isn't resorted
//from its original position. since this happens on callback,
//if the user grabbed the tile again before callback is fired,
//don't remove the moving class in mid-grab
//for some reason in this code pen, the callback isn't firing predictably
console.log(ui.item.is('.grabbing'));
if (!ui.item.is('.grabbing')) {
ui.item.removeClass('moving');
}
})
;
}
});
$( ".isotopey" ).resizable({
grid: [ 200, 25 ],
animate: false,
ghost: false,
minHeight: 50,
containment: '#theholder',
autoHide: false,
});
$( "#theholder" ).resizable({
grid: [ 210, 50 ],
animate: false,
ghost: false,
minWidth: 209,
maxWidth: 211,
minHeight: 50,
autoHide: true,
});