jquery table拖拽排序
参考http://dragsort.codeplex.com/
jquery.dragsort-0.4.min.js：
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script type="text/javascript" src="jquery.dragsort-0.4.min.js"></script>
</head>
<body>
<table id="list1" border="1">
<thead id="gridThead">
<tr style="cursor: pointer;">
<td class="listHeadCell">编号</td>
<td class="listHeadCell">名称</td>
</tr>
</thead>
<tbody id="gridtbody">
<tr>
<td name="biaozhi">1</td>
<td>名称1</td>
</tr>
<tr>
<td name="biaozhi">2</td>
<td>名称2</td>
</tr>
<tr>
<td name="biaozhi">3</td>
<td>名称3</td>
</tr>
<tr>
<td name="biaozhi">4</td>
<td>名称4</td>
</tr>
</tbody>
</table>
<br/>
<textarea name="listhaoSortOrder" id="listhaoSortOrder" rows=10 cols=100></textarea>
<script type="text/javascript">
$(document).ready(function(){
$("#gridtbody").dragsort({ itemSelector: "tr", dragSelector: "tr", dragBetween: true,dragEnd: saveOrder1, placeHolderTemplate: "<tr></tr>" });
});
function saveOrder1() {
// var data = $("#gridtbody").map(function() { return $(this).children().html(); }).get();
var data = $("[name='biaozhi']").map(function() { return $(this).html(); }).get();
$("#listhaoSortOrder").val(data.join("|"));
};
</script>
</body>
</html>
jquery.dragsort-0.4.min.js：
// jQuery List DragSort v0.4
// Website: http://dragsort.codeplex.com/
// License: http://dragsort.codeplex.com/license
(function($) {
$.fn.dragsort = function(options) {
var opts = $.extend({}, $.fn.dragsort.defaults, options);
var lists = [];
var list = null, lastPos = null;
if (this.selector)
$("head").append("<style type='text/css'>" + (this.selector.split(",").join(" " + opts.dragSelector + ",") + " " + opts.dragSelector) + " { cursor: pointer; }</style>");
this.each(function(i, cont) {
if ($(cont).is("table") && $(cont).children().size() == 1 && $(cont).children().is("tbody"))
cont = $(cont).children().get(0);
var newList = {
draggedItem: null,
placeHolderItem: null,
pos: null,
offset: null,
offsetLimit: null,
scroll: null,
container: cont,
init: function() {
$(this.container).attr("data-listIdx", i).mousedown(this.grabItem).find(opts.dragSelector).css("cursor", "pointer");
$(this.container).children(opts.itemSelector).each(function(j) { $(this).attr("data-itemIdx", j); });
},
grabItem: function(e) {
if (e.which != 1 || $(e.target).is(opts.dragSelectorExclude))
return;
var elm = e.target;
while (!$(elm).is("[data-listIdx='" + $(this).attr("data-listIdx") + "'] " + opts.dragSelector)) {
if (elm == this) return;
elm = elm.parentNode;
}
if (list != null && list.draggedItem != null)
list.dropItem();
$(e.target).css("cursor", "move");
list = lists[$(this).attr("data-listIdx")];
list.draggedItem = $(elm).closest(opts.itemSelector);
var mt = parseInt(list.draggedItem.css("marginTop"));
var ml = parseInt(list.draggedItem.css("marginLeft"));
list.offset = list.draggedItem.offset();
list.offset.top = e.pageY - list.offset.top + (isNaN(mt) ? 0 : mt) - 1;
list.offset.left = e.pageX - list.offset.left + (isNaN(ml) ? 0 : ml) - 1;
if (!opts.dragBetween) {
var containerHeight = $(list.container).outerHeight() == 0 ? Math.max(1, Math.round(0.5 + $(list.container).children(opts.itemSelector).size() * list.draggedItem.outerWidth() / $(list.container).outerWidth())) * list.draggedItem.outerHeight() : $(list.container).outerHeight();
list.offsetLimit = $(list.container).offset();
list.offsetLimit.right = list.offsetLimit.left + $(list.container).outerWidth() - list.draggedItem.outerWidth();
list.offsetLimit.bottom = list.offsetLimit.top + containerHeight - list.draggedItem.outerHeight();
}
var h = list.draggedItem.height();
var w = list.draggedItem.width();
var orig = list.draggedItem.attr("style");
list.draggedItem.attr("data-origStyle", orig ? orig : "");
if (opts.itemSelector == "tr") {
list.draggedItem.children().each(function() { $(this).width($(this).width()); });
list.placeHolderItem = list.draggedItem.clone().attr("data-placeHolder", true);
list.draggedItem.after(list.placeHolderItem);
list.placeHolderItem.children().each(function() { $(this).css({ borderWidth:0, width: $(this).width() + 1, height: $(this).height() + 1 }).html(" "); });
} else {
list.draggedItem.after(opts.placeHolderTemplate);
list.placeHolderItem = list.draggedItem.next().css({ height: h, width: w }).attr("data-placeHolder", true);
}
list.draggedItem.css({ position: "absolute", opacity: 0.8, "z-index": 999, height: h, width: w });
$(lists).each(function(i, l) { l.createDropTargets(); l.buildPositionTable(); });
list.scroll = { moveX: 0, moveY: 0, maxX: $(document).width() - $(window).width(), maxY: $(document).height() - $(window).height() };
list.scroll.scrollY = window.setInterval(function() {
if (opts.scrollContainer != window) {
$(opts.scrollContainer).scrollTop($(opts.scrollContainer).scrollTop() + list.scroll.moveY);
return;
}
var t = $(opts.scrollContainer).scrollTop();
if (list.scroll.moveY > 0 && t < list.scroll.maxY || list.scroll.moveY < 0 && t > 0) {
$(opts.scrollContainer).scrollTop(t + list.scroll.moveY);
list.draggedItem.css("top", list.draggedItem.offset().top + list.scroll.moveY + 1);
}
}, 10);
list.scroll.scrollX = window.setInterval(function() {
if (opts.scrollContainer != window) {
$(opts.scrollContainer).scrollLeft($(opts.scrollContainer).scrollLeft() + list.scroll.moveX);
return;
}
var l = $(opts.scrollContainer).scrollLeft();
if (list.scroll.moveX > 0 && l < list.scroll.maxX || list.scroll.moveX < 0 && l > 0) {
$(opts.scrollContainer).scrollLeft(l + list.scroll.moveX);
list.draggedItem.css("left", list.draggedItem.offset().left + list.scroll.moveX + 1);
}
}, 10);
list.setPos(e.pageX, e.pageY);
$(document).bind("selectstart", list.stopBubble); //stop ie text selection
$(document).bind("mousemove", list.swapItems);
$(document).bind("mouseup", list.dropItem);
if (opts.scrollContainer != window)
$(window).bind("DOMMouseScroll mousewheel", list.wheel);
return false; //stop moz text selection
},
setPos: function(x, y) {
var top = y - this.offset.top;
var left = x - this.offset.left;
if (!opts.dragBetween) {
top = Math.min(this.offsetLimit.bottom, Math.max(top, this.offsetLimit.top));
left = Math.min(this.offsetLimit.right, Math.max(left, this.offsetLimit.left));
}
this.draggedItem.parents().each(function() {
if ($(this).css("position") != "static" && (!$.browser.mozilla || $(this).css("display") != "table")) {
var offset = $(this).offset();
top -= offset.top;
left -= offset.left;
return false;
}
});
if (opts.scrollContainer == window) {
y -= $(window).scrollTop();
x -= $(window).scrollLeft();
y = Math.max(0, y - $(window).height() + 5) + Math.min(0, y - 5);
x = Math.max(0, x - $(window).width() + 5) + Math.min(0, x - 5);
} else {
var cont = $(opts.scrollContainer);
var offset = cont.offset();
y = Math.max(0, y - cont.height() - offset.top) + Math.min(0, y - offset.top);
x = Math.max(0, x - cont.width() - offset.left) + Math.min(0, x - offset.left);
}
list.scroll.moveX = x == 0 ? 0 : x * opts.scrollSpeed / Math.abs(x);
list.scroll.moveY = y == 0 ? 0 : y * opts.scrollSpeed / Math.abs(y);
this.draggedItem.css({ top: top, left: left });
},
wheel: function(e) {
if (($.browser.safari || $.browser.mozilla) && list && opts.scrollContainer != window) {
var cont = $(opts.scrollContainer);
var offset = cont.offset();
if (e.pageX > offset.left && e.pageX < offset.left + cont.width() && e.pageY > offset.top && e.pageY < offset.top + cont.height()) {
var delta = e.detail ? e.detail * 5 : e.wheelDelta / -2;
cont.scrollTop(cont.scrollTop() + delta);
e.preventDefault();
}
}
},
buildPositionTable: function() {
var item = this.draggedItem == null ? null : this.draggedItem.get(0);
var pos = [];
$(this.container).children(opts.itemSelector).each(function(i, elm) {
if (elm != item) {
var loc = $(elm).offset();
loc.right = loc.left + $(elm).width();
loc.bottom = loc.top + $(elm).height();
loc.elm = elm;
pos.push(loc);
}
});
this.pos = pos;
},
dropItem: function() {
if (list.draggedItem == null)
return;
$(list.container).find(opts.dragSelector).css("cursor", "pointer");
list.placeHolderItem.before(list.draggedItem);
list.draggedItem.attr("style", list.draggedItem.attr("data-origStyle")).removeAttr("data-origStyle");
list.placeHolderItem.remove();
$("[data-dropTarget]").remove();
window.clearInterval(list.scroll.scrollY);
window.clearInterval(list.scroll.scrollX);
var changed = false;
$(lists).each(function() {
$(this.container).children(opts.itemSelector).each(function(j) {
if (parseInt($(this).attr("data-itemIdx")) != j) {
changed = true;
$(this).attr("data-itemIdx", j);
}
});
});
if (changed)
opts.dragEnd.apply(list.draggedItem);
list.draggedItem = null;
$(document).unbind("selectstart", list.stopBubble);
$(document).unbind("mousemove", list.swapItems);
$(document).unbind("mouseup", list.dropItem);
if (opts.scrollContainer != window)
$(window).unbind("DOMMouseScroll mousewheel", list.wheel);
return false;
},
stopBubble: function() { return false; },
swapItems: function(e) {
if (list.draggedItem == null)
return false;
list.setPos(e.pageX, e.pageY);
var ei = list.findPos(e.pageX, e.pageY);
var nlist = list;
for (var i = 0; ei == -1 && opts.dragBetween && i < lists.length; i++) {
ei = lists[i].findPos(e.pageX, e.pageY);
nlist = lists[i];
}
if (ei == -1 || $(nlist.pos[ei].elm).attr("data-placeHolder"))
return false;
if (lastPos == null || lastPos.top > list.draggedItem.offset().top || lastPos.left > list.draggedItem.offset().left)
$(nlist.pos[ei].elm).before(list.placeHolderItem);
else
$(nlist.pos[ei].elm).after(list.placeHolderItem);
$(lists).each(function(i, l) { l.createDropTargets(); l.buildPositionTable(); });
lastPos = list.draggedItem.offset();
return false;
},
findPos: function(x, y) {
for (var i = 0; i < this.pos.length; i++) {
if (this.pos[i].left < x && this.pos[i].right > x && this.pos[i].top < y && this.pos[i].bottom > y)
return i;
}
return -1;
},
createDropTargets: function() {
if (!opts.dragBetween)
return;
$(lists).each(function() {
var ph = $(this.container).find("[data-placeHolder]");
var dt = $(this.container).find("[data-dropTarget]");
if (ph.size() > 0 && dt.size() > 0)
dt.remove();
else if (ph.size() == 0 && dt.size() == 0)
$(this.container).append(list.placeHolderItem.clone().removeAttr("data-placeHolder").attr("data-dropTarget", true));
});
}
};
newList.init();
lists.push(newList);
});
return this;
};
$.fn.dragsort.defaults = {
itemSelector: "li",
dragSelector: "li",
dragSelectorExclude: "input, textarea, a[href]",
dragEnd: function() { },
dragBetween: false,
placeHolderTemplate: "<li> </li>",
scrollContainer: window,
scrollSpeed: 5
};
})(jQuery);