yuyue/static/js/jquery.dragsort-0.5.1.min.js

// jQuery List DragSort v0.5.1
var dragsort_flag = false;
(function(b) {
    b.fn.dragsort = function(k) {
        if ("destroy" == k) b(this.selector).trigger("dragsort-uninit");
        else {
            var f = b.extend({},
            b.fn.dragsort.defaults, k),
            h = [],
            a = null,
            l = null;
            this.each(function(k, j) {
                b(j).is("table") && 1 == b(j).children().size() && b(j).children().is("tbody") && (j = b(j).children().get(0));
                var m = {
                    draggedItem: null,
                    placeHolderItem: null,
                    pos: null,
                    offset: null,
                    offsetLimit: null,
                    scroll: null,
                    container: j,
                    init: function() {
                        var a = 0 == b(this.container).children().size() ? "li": b(this.container).children(":first").get(0).tagName.toLowerCase();
                        "" == f.itemSelector && (f.itemSelector = a);
                        "" == f.dragSelector && (f.dragSelector = a);
                        "" == f.placeHolderTemplate && (f.placeHolderTemplate = "<" + a + "> </" + a + ">");
                        b(this.container).attr("data-listidx", k).mousedown(this.grabItem).bind("dragsort-uninit", this.uninit);
                        this.styleDragHandlers(!0)
                    },
                    uninit: function() {
                        var a = h[b(this).attr("data-listidx")];
                        b(a.container).unbind("mousedown", a.grabItem).unbind("dragsort-uninit");
                        a.styleDragHandlers(!1)
                    },
                    getItems: function() {
                    	dragsort_flag = true;
                    	setTimeout(function(){
                    		dragsort_flag = false;
                    	},1000);
                        return b(this.container).children(f.itemSelector)
                    },
                    styleDragHandlers: function(a) {
                        this.getItems().map(function() {
                            return b(this).is(f.dragSelector) ? this: b(this).find(f.dragSelector).get()
                        }).css("cursor", a ? "pointer": "")
                    },
                    grabItem: function(a) {
                        if (! (1 != a.which || b(a.target).is(f.dragSelectorExclude) || 0 < b(a.target).closest(f.dragSelectorExclude).size() || 0 == b(a.target).closest(f.itemSelector).size())) {
                            a.preventDefault();
                            for (var c = a.target; ! b(c).is(f.dragSelector);) {
                                if (c == this) return;
                                c = c.parentNode
                            }
                            b(c).attr("data-cursor", b(c).css("cursor"));
                            b(c).css("cursor", "move");
                            var e = h[b(this).attr("data-listidx")],
                            g = this,
                            i = function() {
                                e.dragStart.call(g, a);
                                b(e.container).unbind("mousemove", i)
                            };
                            b(e.container).mousemove(i).mouseup(function() {
                                b(e.container).unbind("mousemove", i);
                                b(c).css("cursor", b(c).attr("data-cursor"))
                            })
                        }
                    },
                    dragStart: function(d) {
                        null != a && null != a.draggedItem && a.dropItem();
                        a = h[b(this).attr("data-listidx")];
                        a.draggedItem = b(d.target).closest(f.itemSelector);
                        a.draggedItem.attr("data-origpos", b(this).attr("data-listidx") + "-" + a.getItems().index(a.draggedItem));
                        var c = parseInt(a.draggedItem.css("marginTop")),
                        e = parseInt(a.draggedItem.css("marginLeft"));
                        a.offset = a.draggedItem.offset();
                        a.offset.top = d.pageY - a.offset.top + (isNaN(c) ? 0 : c) - 1;
                        a.offset.left = d.pageX - a.offset.left + (isNaN(e) ? 0 : e) - 1;
                        f.dragBetween || (c = 0 == b(a.container).outerHeight() ? Math.max(1, Math.round(0.5 + a.getItems().size() * a.draggedItem.outerWidth() / b(a.container).outerWidth())) * a.draggedItem.outerHeight() : b(a.container).outerHeight(), a.offsetLimit = b(a.container).offset(), a.offsetLimit.right = a.offsetLimit.left + b(a.container).outerWidth() - a.draggedItem.outerWidth(), a.offsetLimit.bottom = a.offsetLimit.top + c - a.draggedItem.outerHeight());
                        c = a.draggedItem.height();
                        e = a.draggedItem.width();
                        "tr" == f.itemSelector ? (a.draggedItem.children().each(function() {
                            b(this).width(b(this).width())
                        }), a.placeHolderItem = a.draggedItem.clone().attr("data-placeholder", !0), a.draggedItem.after(a.placeHolderItem), a.placeHolderItem.children().each(function() {
                            b(this).css({
                                borderWidth: 0,
                                width: b(this).width() + 1,
                                height: b(this).height() + 1
                            }).html(" ")
                        })) : (a.draggedItem.after(f.placeHolderTemplate), a.placeHolderItem = a.draggedItem.next().css({
                            height: c,
                            width: e
                        }).attr("data-placeholder", !0));
                        if ("td" == f.itemSelector) {
                            var g = a.draggedItem.closest("table").get(0);
                            b("<table id='" + g.id + "' style='border-width: 0px;' class='dragSortItem " + g.className + "'><tr></tr></table>").appendTo("body").children().append(a.draggedItem)
                        }
                        g = a.draggedItem.attr("style");
                        a.draggedItem.attr("data-origstyle", g ? g: "");
                        a.draggedItem.css({
                            position: "absolute",
                            opacity: 0.8,
                            "z-index": 999,
                            height: c,
                            width: e
                        });
                        a.scroll = {
                            moveX: 0,
                            moveY: 0,
                            maxX: b(document).width() - b(window).width(),
                            maxY: b(document).height() - b(window).height()
                        };
                        a.scroll.scrollY = window.setInterval(function() {
                            if (f.scrollContainer != window){
                            	var c = b(f.scrollContainer).scrollTop();
                            	b(f.scrollContainer).scrollTop(c + a.scroll.moveY);
                            } else {
                                var c = b(f.scrollContainer).scrollTop();
                                if ((0 < a.scroll.moveY && c < a.scroll.maxY) || (0 > a.scroll.moveY && 0 < c)){
                                	b(f.scrollContainer).scrollTop(c + a.scroll.moveY),a.draggedItem.css("top", a.draggedItem.offset().top + a.scroll.moveY + 1);
                                } 
                            }
                        },
                        10);
                        a.scroll.scrollX = window.setInterval(function() {
                            if (f.scrollContainer != window) b(f.scrollContainer).scrollLeft(b(f.scrollContainer).scrollLeft() + a.scroll.moveX);
                            else {
                                var c = b(f.scrollContainer).scrollLeft();
                                if (0 < a.scroll.moveX && c < a.scroll.maxX || 0 > a.scroll.moveX && 0 < c) b(f.scrollContainer).scrollLeft(c + a.scroll.moveX),
                                a.draggedItem.css("left", a.draggedItem.offset().left + a.scroll.moveX + 1)
                            }
                        },
                        10);
                        b(h).each(function(a, b) {
                            b.createDropTargets();
                            b.buildPositionTable()
                        });
                        a.setPos(d.pageX, d.pageY);
                        b(document).bind("mousemove", a.swapItems);
                        b(document).bind("mouseup", a.dropItem);
                        f.scrollContainer != window && b(window).bind("DOMMouseScroll mousewheel", a.wheel)
                    },
                    setPos: function(d, c) {
                        var e = c - this.offset.top,
                        g = d - this.offset.left;
                        f.dragBetween || (e = Math.min(this.offsetLimit.bottom, Math.max(e, this.offsetLimit.top)), g = Math.min(this.offsetLimit.right, Math.max(g, this.offsetLimit.left)));
                        this.draggedItem.parents().each(function() {
                            if ("static" != b(this).css("position") && (!b.browser.mozilla || "table" != b(this).css("display"))) {
                                var a = b(this).offset();
                                e -= a.top;
                                g -= a.left;
                                return ! 1
                            }
                        });
                        if (f.scrollContainer == window) c -= b(window).scrollTop(),
                        d -= b(window).scrollLeft(),
                        c = Math.max(0, c - b(window).height() + 5) + Math.min(0, c - 5),
                        d = Math.max(0, d - b(window).width() + 5) + Math.min(0, d - 5);
                        else var i = b(f.scrollContainer),
                        h = i.offset(),
                        c = Math.max(0, c - i.height() - h.top) + Math.min(0, c - h.top),
                        d = Math.max(0, d - i.width() - h.left) + Math.min(0, d - h.left);
                        a.scroll.moveX = 0 == d ? 0 : d * f.scrollSpeed / Math.abs(d);
                        a.scroll.moveY = 0 == c ? 0 : c * f.scrollSpeed / Math.abs(c);
                        this.draggedItem.css({
                            top: e,
                            left: g
                        })
                    },
                    wheel: function(d) {
                        if ((b.browser.safari || b.browser.mozilla) && a && f.scrollContainer != window) {
                            var c = b(f.scrollContainer),
                            e = c.offset();
                            d.pageX > e.left && d.pageX < e.left + c.width() && d.pageY > e.top && d.pageY < e.top + c.height() && (e = d.detail ? 5 * d.detail: d.wheelDelta / -2, c.scrollTop(c.scrollTop() + e), d.preventDefault())
                        }
                    },
                    buildPositionTable: function() {
                        var d = [];
                        this.getItems().not([a.draggedItem[0], a.placeHolderItem[0]]).each(function(a) {
                            var e = b(this).offset();
                            e.right = e.left + b(this).outerWidth();
                            e.bottom = e.top + b(this).outerHeight();
                            e.elm = this;
                            d[a] = e
                        });
                        this.pos = d
                    },
                    dropItem: function() {
                        if (null != a.draggedItem) {
                            var d = a.draggedItem.attr("data-origstyle");
                            a.draggedItem.attr("style", d);
                            "" == d && a.draggedItem.removeAttr("style");
                            a.draggedItem.removeAttr("data-origstyle");
                            a.styleDragHandlers(!0);
                            a.placeHolderItem.before(a.draggedItem);
                            a.placeHolderItem.remove();
                            b("[data-droptarget], .dragSortItem").remove();
                            window.clearInterval(a.scroll.scrollY);
                            window.clearInterval(a.scroll.scrollX);
                            a.draggedItem.attr("data-origpos") != b(h).index(a) + "-" + a.getItems().index(a.draggedItem) && f.dragEnd.apply(a.draggedItem);
                            a.draggedItem.removeAttr("data-origpos");
                            a.draggedItem = null;
                            b(document).unbind("mousemove", a.swapItems);
                            b(document).unbind("mouseup", a.dropItem);
                            f.scrollContainer != window && b(window).unbind("DOMMouseScroll mousewheel", a.wheel);
                            return ! 1
                        }
                    },
                    swapItems: function(d) {
                        if (null == a.draggedItem) return ! 1;
                        a.setPos(d.pageX, d.pageY);
                        for (var c = a.findPos(d.pageX, d.pageY), e = a, g = 0; - 1 == c && f.dragBetween && g < h.length; g++) c = h[g].findPos(d.pageX, d.pageY),
                        e = h[g];
                        if ( - 1 == c) return ! 1;
                        var i = function() {
                            return b(e.container).children().not(e.draggedItem)
                        },
                        d = i().not(f.itemSelector).each(function() {
                            this.idx = i().index(this)
                        });
                        null == l || l.top > a.draggedItem.offset().top || l.left > a.draggedItem.offset().left ? b(e.pos[c].elm).before(a.placeHolderItem) : b(e.pos[c].elm).after(a.placeHolderItem);
                        d.each(function() {
                            var a = i().eq(this.idx).get(0);
                            this != a && i().index(this) < this.idx ? b(this).insertAfter(a) : this != a && b(this).insertBefore(a)
                        });
                        b(h).each(function(a, b) {
                            b.createDropTargets();
                            b.buildPositionTable()
                        });
                        l = a.draggedItem.offset();
                        return ! 1
                    },
                    findPos: function(a, b) {
                        for (var e = 0; e < this.pos.length; e++) if (this.pos[e].left < a && this.pos[e].right > a && this.pos[e].top < b && this.pos[e].bottom > b) return e;
                        return - 1
                    },
                    createDropTargets: function() {
                        f.dragBetween && b(h).each(function() {
                            var d = b(this.container).find("[data-placeholder]"),
                            c = b(this.container).find("[data-droptarget]");
                            0 < d.size() && 0 < c.size() ? c.remove() : 0 == d.size() && 0 == c.size() && ("td" == f.itemSelector ? b(f.placeHolderTemplate).attr("data-droptarget", !0).appendTo(this.container) : b(this.container).append(a.placeHolderItem.removeAttr("data-placeholder").clone().attr("data-droptarget", !0)), a.placeHolderItem.attr("data-placeholder", !0))
                        })
                    }
                };
                m.init();
                h.push(m)
            });
            return this
        }
    };
    b.fn.dragsort.defaults = {
        itemSelector: "",
        dragSelector: "",
        dragSelectorExclude: "input, textarea",
        dragEnd: function() {},
        dragBetween: !1,
        placeHolderTemplate: "",
        scrollContainer: window,
        scrollSpeed: 5
    }
})(jQuery);