jquery实现的鼠标拖动排序Li或Table

2020-05-17 06:20:23易采站长站整理

});
} else {
this._clear(event, noPropagation);
}
return false;
},
cancel: function() {
var self = this;
if(this.dragging) {
this._mouseUp();
if(this.options.helper == “original”)
this.currentItem.css(this._storedCSS).removeClass(“ui-sortable-helper”);
else
this.currentItem.show();
//Post deactivating events to containers
for (var i = this.containers.length – 1; i >= 0; i–){
this.containers[i]._trigger(“deactivate”, null, self._uiHash(this));
if(this.containers[i].containerCache.over) {
this.containers[i]._trigger(“out”, null, self._uiHash(this));
this.containers[i].containerCache.over = 0;
}
}
}
//$(this.placeholder[0]).remove(); would have been the jQuery way – unfortunately, it unbinds ALL events from the original node!
if(this.placeholder[0].parentNode) this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
if(this.options.helper != “original” && this.helper && this.helper[0].parentNode) this.helper.remove();
$.extend(this, {
helper: null,
dragging: false,
reverting: false,
_noFinalSort: null
});
if(this.domPosition.prev) {
$(this.domPosition.prev).after(this.currentItem);
} else {
$(this.domPosition.parent).prepend(this.currentItem);
}
return true;
},
serialize: function(o) {
var items = this._getItemsAsjQuery(o && o.connected);
var str = []; o = o || {};
$(items).each(function() {
var res = ($(o.item || this).attr(o.attribute || ‘id’) || ”).match(o.expression || (/(.+)[-=_](.+)/));
if(res) str.push((o.key || res[1]+'[]’)+’=’+(o.key && o.expression ? res[1] : res[2]));
});
return str.join(‘&’);
},
toArray: function(o) {
var items = this._getItemsAsjQuery(o && o.connected);
var ret = []; o = o || {};
items.each(function() { ret.push($(o.item || this).attr(o.attribute || ‘id’) || ”); });
return ret;
},
/* Be careful with the following core functions */
_intersectsWith: function(item) {
var x1 = this.positionAbs.left,
x2 = x1 + this.helperProportions.width,
y1 = this.positionAbs.top,
y2 = y1 + this.helperProportions.height;
var l = item.left,
r = l + item.width,
t = item.top,
b = t + item.height;
var dyClick = this.offset.click.top,
dxClick = this.offset.click.left;
var isOverElement = (y1 + dyClick) > t && (y1 + dyClick) < b && (x1 + dxClick) > l && (x1 + dxClick) < r;
if( this.options.tolerance == “pointer”
|| this.options.forcePointerForContainers
|| (this.options.tolerance != “pointer” && this.helperProportions[this.floating ? ‘width’ : ‘height’] > item[this.floating ? ‘width’ : ‘height’])