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git-svn-id: http://svn.automattic.com/wordpress/trunk@7973 1a063a9b-81f0-0310-95a4-ce76da25c4cd
672 lines
26 KiB
JavaScript
672 lines
26 KiB
JavaScript
/*
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* jQuery UI Sortable
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*
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* Copyright (c) 2008 Paul Bakaus
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* Dual licensed under the MIT (MIT-LICENSE.txt)
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* and GPL (GPL-LICENSE.txt) licenses.
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*
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* http://docs.jquery.com/UI/Sortables
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*
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* Depends:
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* ui.core.js
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*
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* Revision: $Id: ui.sortable.js 5433 2008-05-04 20:07:17Z joern.zaefferer $
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*/
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;(function($) {
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function contains(a, b) {
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var safari2 = $.browser.safari && $.browser.version < 522;
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if (a.contains && !safari2) {
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return a.contains(b);
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}
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if (a.compareDocumentPosition)
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return !!(a.compareDocumentPosition(b) & 16);
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while (b = b.parentNode)
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if (b == a) return true;
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return false;
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};
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$.widget("ui.sortable", {
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init: function() {
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var o = this.options;
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this.containerCache = {};
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this.element.addClass("ui-sortable");
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//Get the items
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this.refresh();
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//Let's determine if the items are floating
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this.floating = this.items.length ? (/left|right/).test(this.items[0].item.css('float')) : false;
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//Let's determine the parent's offset
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if(!(/(relative|absolute|fixed)/).test(this.element.css('position'))) this.element.css('position', 'relative');
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this.offset = this.element.offset();
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//Initialize mouse events for interaction
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this.element.mouse({
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executor: this,
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delay: o.delay,
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distance: o.distance || 1,
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dragPrevention: o.prevention ? o.prevention.toLowerCase().split(',') : ['input','textarea','button','select','option'],
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start: this.start,
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stop: this.stop,
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drag: this.drag,
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condition: function(e) {
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if(this.options.disabled || this.options.type == 'static') return false;
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//Find out if the clicked node (or one of its parents) is a actual item in this.items
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var currentItem = null, nodes = $(e.target).parents().each(function() {
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if($.data(this, 'sortable-item')) {
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currentItem = $(this);
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return false;
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}
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});
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if($.data(e.target, 'sortable-item')) currentItem = $(e.target);
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if(!currentItem) return false;
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if(this.options.handle) {
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var validHandle = false;
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$(this.options.handle, currentItem).each(function() { if(this == e.target) validHandle = true; });
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if(!validHandle) return false;
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}
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this.currentItem = currentItem;
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return true;
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}
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});
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},
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plugins: {},
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ui: function(inst) {
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return {
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helper: (inst || this)["helper"],
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placeholder: (inst || this)["placeholder"] || $([]),
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position: (inst || this)["position"].current,
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absolutePosition: (inst || this)["position"].absolute,
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instance: this,
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options: this.options,
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element: this.element,
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item: (inst || this)["currentItem"],
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sender: inst ? inst.element : null
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};
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},
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propagate: function(n,e,inst) {
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$.ui.plugin.call(this, n, [e, this.ui(inst)]);
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this.element.triggerHandler(n == "sort" ? n : "sort"+n, [e, this.ui(inst)], this.options[n]);
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},
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serialize: function(o) {
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var items = $(this.options.items, this.element).not('.ui-sortable-helper'); //Only the items of the sortable itself
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var str = []; o = o || {};
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items.each(function() {
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var res = ($(this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/));
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if(res) str.push((o.key || res[1])+'[]='+(o.key ? res[1] : res[2]));
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});
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return str.join('&');
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},
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toArray: function(attr) {
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var items = $(this.options.items, this.element).not('.ui-sortable-helper'); //Only the items of the sortable itself
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var ret = [];
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items.each(function() { ret.push($(this).attr(attr || 'id')); });
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return ret;
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},
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enable: function() {
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this.element.removeClass("ui-sortable-disabled");
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this.options.disabled = false;
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},
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disable: function() {
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this.element.addClass("ui-sortable-disabled");
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this.options.disabled = true;
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},
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/* Be careful with the following core functions */
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intersectsWith: function(item) {
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var x1 = this.position.absolute.left, x2 = x1 + this.helperProportions.width,
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y1 = this.position.absolute.top, y2 = y1 + this.helperProportions.height;
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var l = item.left, r = l + item.width,
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t = item.top, b = t + item.height;
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if(this.options.tolerance == "pointer") {
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return (y1 + this.clickOffset.top > t && y1 + this.clickOffset.top < b && x1 + this.clickOffset.left > l && x1 + this.clickOffset.left < r);
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} else {
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return (l < x1 + (this.helperProportions.width / 2) // Right Half
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&& x2 - (this.helperProportions.width / 2) < r // Left Half
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&& t < y1 + (this.helperProportions.height / 2) // Bottom Half
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&& y2 - (this.helperProportions.height / 2) < b ); // Top Half
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}
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},
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intersectsWithEdge: function(item) {
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var x1 = this.position.absolute.left, x2 = x1 + this.helperProportions.width,
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y1 = this.position.absolute.top, y2 = y1 + this.helperProportions.height;
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var l = item.left, r = l + item.width,
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t = item.top, b = t + item.height;
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if(this.options.tolerance == "pointer") {
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if(!(y1 + this.clickOffset.top > t && y1 + this.clickOffset.top < b && x1 + this.clickOffset.left > l && x1 + this.clickOffset.left < r)) return false;
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if(this.floating) {
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if(x1 + this.clickOffset.left > l && x1 + this.clickOffset.left < l + item.width/2) return 2;
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if(x1 + this.clickOffset.left > l+item.width/2 && x1 + this.clickOffset.left < r) return 1;
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} else {
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if(y1 + this.clickOffset.top > t && y1 + this.clickOffset.top < t + item.height/2) return 2;
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if(y1 + this.clickOffset.top > t+item.height/2 && y1 + this.clickOffset.top < b) return 1;
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}
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} else {
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if (!(l < x1 + (this.helperProportions.width / 2) // Right Half
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&& x2 - (this.helperProportions.width / 2) < r // Left Half
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&& t < y1 + (this.helperProportions.height / 2) // Bottom Half
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&& y2 - (this.helperProportions.height / 2) < b )) return false; // Top Half
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if(this.floating) {
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if(x2 > l && x1 < l) return 2; //Crosses left edge
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if(x1 < r && x2 > r) return 1; //Crosses right edge
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} else {
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if(y2 > t && y1 < t) return 1; //Crosses top edge
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if(y1 < b && y2 > b) return 2; //Crosses bottom edge
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}
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}
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return false;
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},
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//This method checks approximately if the item is dragged in a container, but doesn't touch any items
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inEmptyZone: function(container) {
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if(!$(container.options.items, container.element).length) {
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return container.options.dropOnEmpty ? true : false;
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};
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var last = $(container.options.items, container.element).not('.ui-sortable-helper'); last = $(last[last.length-1]);
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var top = last.offset()[this.floating ? 'left' : 'top'] + last[0][this.floating ? 'offsetWidth' : 'offsetHeight'];
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return (this.position.absolute[this.floating ? 'left' : 'top'] > top);
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},
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refresh: function() {
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this.refreshItems();
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this.refreshPositions();
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},
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refreshItems: function() {
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this.items = [];
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this.containers = [this];
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var items = this.items;
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var queries = [$(this.options.items, this.element)];
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if(this.options.connectWith) {
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for (var i = this.options.connectWith.length - 1; i >= 0; i--){
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var cur = $(this.options.connectWith[i]);
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for (var j = cur.length - 1; j >= 0; j--){
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var inst = $.data(cur[j], 'sortable');
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if(inst && !inst.options.disabled) {
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queries.push($(inst.options.items, inst.element));
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this.containers.push(inst);
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}
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};
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};
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}
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for (var i = queries.length - 1; i >= 0; i--){
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queries[i].each(function() {
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$.data(this, 'sortable-item', true); // Data for target checking (mouse manager)
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items.push({
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item: $(this),
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width: 0, height: 0,
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left: 0, top: 0
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});
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});
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};
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},
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refreshPositions: function(fast) {
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for (var i = this.items.length - 1; i >= 0; i--){
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var t = this.items[i].item;
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if(!fast) this.items[i].width = (this.options.toleranceElement ? $(this.options.toleranceElement, t) : t).outerWidth();
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if(!fast) this.items[i].height = (this.options.toleranceElement ? $(this.options.toleranceElement, t) : t).outerHeight();
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var p = (this.options.toleranceElement ? $(this.options.toleranceElement, t) : t).offset();
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this.items[i].left = p.left;
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this.items[i].top = p.top;
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};
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for (var i = this.containers.length - 1; i >= 0; i--){
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var p =this.containers[i].element.offset();
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this.containers[i].containerCache.left = p.left;
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this.containers[i].containerCache.top = p.top;
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this.containers[i].containerCache.width = this.containers[i].element.outerWidth();
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this.containers[i].containerCache.height = this.containers[i].element.outerHeight();
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};
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},
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destroy: function() {
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this.element
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.removeClass("ui-sortable ui-sortable-disabled")
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.removeData("sortable")
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.unbind(".sortable")
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.mouse("destroy");
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for ( var i = this.items.length - 1; i >= 0; i-- )
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this.items[i].item.removeData("sortable-item");
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},
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createPlaceholder: function(that) {
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(that || this).placeholderElement = this.options.placeholderElement ? $(this.options.placeholderElement, (that || this).currentItem) : (that || this).currentItem;
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(that || this).placeholder = $('<div></div>')
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.addClass(this.options.placeholder)
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.appendTo('body')
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.css({ position: 'absolute' })
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.css((that || this).placeholderElement.offset())
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.css({ width: (that || this).placeholderElement.outerWidth(), height: (that || this).placeholderElement.outerHeight() })
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;
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},
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contactContainers: function(e) {
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for (var i = this.containers.length - 1; i >= 0; i--){
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if(this.intersectsWith(this.containers[i].containerCache)) {
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if(!this.containers[i].containerCache.over) {
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if(this.currentContainer != this.containers[i]) {
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//When entering a new container, we will find the item with the least distance and append our item near it
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var dist = 10000; var itemWithLeastDistance = null; var base = this.position.absolute[this.containers[i].floating ? 'left' : 'top'];
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for (var j = this.items.length - 1; j >= 0; j--) {
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if(!contains(this.containers[i].element[0], this.items[j].item[0])) continue;
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var cur = this.items[j][this.containers[i].floating ? 'left' : 'top'];
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if(Math.abs(cur - base) < dist) {
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dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j];
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}
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}
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//We also need to exchange the placeholder
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if(this.placeholder) this.placeholder.remove();
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if(this.containers[i].options.placeholder) {
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this.containers[i].createPlaceholder(this);
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} else {
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this.placeholder = null; this.placeholderElement = null;
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}
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itemWithLeastDistance ? this.rearrange(e, itemWithLeastDistance) : this.rearrange(e, null, this.containers[i].element);
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this.propagate("change", e); //Call plugins and callbacks
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this.containers[i].propagate("change", e, this); //Call plugins and callbacks
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this.currentContainer = this.containers[i];
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}
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this.containers[i].propagate("over", e, this);
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this.containers[i].containerCache.over = 1;
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}
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} else {
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if(this.containers[i].containerCache.over) {
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this.containers[i].propagate("out", e, this);
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this.containers[i].containerCache.over = 0;
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}
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}
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};
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},
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start: function(e,el) {
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var o = this.options;
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this.currentContainer = this;
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this.refresh();
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//Create and append the visible helper
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this.helper = typeof o.helper == 'function' ? $(o.helper.apply(this.element[0], [e, this.currentItem])) : this.currentItem.clone();
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if(!this.helper.parents('body').length) this.helper.appendTo(o.appendTo || this.currentItem[0].parentNode); //Add the helper to the DOM if that didn't happen already
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this.helper.css({ position: 'absolute', clear: 'both' }).addClass('ui-sortable-helper'); //Position it absolutely and add a helper class
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//Prepare variables for position generation
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$.extend(this, {
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offsetParent: this.helper.offsetParent(),
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offsets: {
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absolute: this.currentItem.offset()
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},
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mouse: {
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start: { top: e.pageY, left: e.pageX }
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},
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margins: {
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top: parseInt(this.currentItem.css("marginTop")) || 0,
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left: parseInt(this.currentItem.css("marginLeft")) || 0
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}
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});
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//The relative click offset
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this.offsets.parent = this.offsetParent.offset();
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this.clickOffset = { left: e.pageX - this.offsets.absolute.left, top: e.pageY - this.offsets.absolute.top };
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this.originalPosition = {
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left: this.offsets.absolute.left - this.offsets.parent.left - this.margins.left,
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top: this.offsets.absolute.top - this.offsets.parent.top - this.margins.top
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}
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//Generate a flexible offset that will later be subtracted from e.pageX/Y
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//I hate margins - they need to be removed before positioning the element absolutely..
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this.offset = {
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left: e.pageX - this.originalPosition.left,
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top: e.pageY - this.originalPosition.top
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};
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//Save the first time position
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$.extend(this, {
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position: {
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current: { top: e.pageY - this.offset.top, left: e.pageX - this.offset.left },
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absolute: { left: e.pageX - this.clickOffset.left, top: e.pageY - this.clickOffset.top },
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dom: this.currentItem.prev()[0]
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}
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});
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//If o.placeholder is used, create a new element at the given position with the class
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if(o.placeholder) this.createPlaceholder();
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this.propagate("start", e); //Call plugins and callbacks
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this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() }; //Save and store the helper proportions
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//If we have something in cursorAt, we'll use it
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if(o.cursorAt) {
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if(o.cursorAt.top != undefined || o.cursorAt.bottom != undefined) {
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this.offset.top -= this.clickOffset.top - (o.cursorAt.top != undefined ? o.cursorAt.top : (this.helperProportions.height - o.cursorAt.bottom));
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this.clickOffset.top = (o.cursorAt.top != undefined ? o.cursorAt.top : (this.helperProportions.height - o.cursorAt.bottom));
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}
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if(o.cursorAt.left != undefined || o.cursorAt.right != undefined) {
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this.offset.left -= this.clickOffset.left - (o.cursorAt.left != undefined ? o.cursorAt.left : (this.helperProportions.width - o.cursorAt.right));
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this.clickOffset.left = (o.cursorAt.left != undefined ? o.cursorAt.left : (this.helperProportions.width - o.cursorAt.right));
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}
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}
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if(this.options.placeholder != 'clone') $(this.currentItem).css('visibility', 'hidden'); //Set the original element visibility to hidden to still fill out the white space
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for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i].propagate("activate", e, this); } //Post 'activate' events to possible containers
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//Prepare possible droppables
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if($.ui.ddmanager) $.ui.ddmanager.current = this;
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if ($.ui.ddmanager && !o.dropBehaviour) $.ui.ddmanager.prepareOffsets(this, e);
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this.dragging = true;
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return false;
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},
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stop: function(e) {
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this.propagate("stop", e); //Call plugins and trigger callbacks
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if(this.position.dom != this.currentItem.prev()[0]) this.propagate("update", e); //Trigger update callback if the DOM position has changed
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if(!contains(this.element[0], this.currentItem[0])) { //Node was moved out of the current element
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this.propagate("remove", e);
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for (var i = this.containers.length - 1; i >= 0; i--){
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if(contains(this.containers[i].element[0], this.currentItem[0])) {
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this.containers[i].propagate("update", e, this);
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this.containers[i].propagate("receive", e, this);
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}
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};
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};
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//Post events to containers
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for (var i = this.containers.length - 1; i >= 0; i--){
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this.containers[i].propagate("deactivate", e, this);
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if(this.containers[i].containerCache.over) {
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this.containers[i].propagate("out", e, this);
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this.containers[i].containerCache.over = 0;
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}
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}
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//If we are using droppables, inform the manager about the drop
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if ($.ui.ddmanager && !this.options.dropBehaviour) $.ui.ddmanager.drop(this, e);
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this.dragging = false;
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if(this.cancelHelperRemoval) return false;
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$(this.currentItem).css('visibility', '');
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if(this.placeholder) this.placeholder.remove();
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this.helper.remove();
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return false;
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},
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drag: function(e) {
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//Compute the helpers position
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this.position.current = { top: e.pageY - this.offset.top, left: e.pageX - this.offset.left };
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this.position.absolute = { left: e.pageX - this.clickOffset.left, top: e.pageY - this.clickOffset.top };
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//Rearrange
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for (var i = this.items.length - 1; i >= 0; i--) {
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var intersection = this.intersectsWithEdge(this.items[i]);
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if(!intersection) continue;
|
|
|
|
if(this.items[i].item[0] != this.currentItem[0] //cannot intersect with itself
|
|
&& this.currentItem[intersection == 1 ? "next" : "prev"]()[0] != this.items[i].item[0] //no useless actions that have been done before
|
|
&& !contains(this.currentItem[0], this.items[i].item[0]) //no action if the item moved is the parent of the item checked
|
|
&& (this.options.type == 'semi-dynamic' ? !contains(this.element[0], this.items[i].item[0]) : true)
|
|
) {
|
|
|
|
this.direction = intersection == 1 ? "down" : "up";
|
|
this.rearrange(e, this.items[i]);
|
|
this.propagate("change", e); //Call plugins and callbacks
|
|
break;
|
|
}
|
|
}
|
|
|
|
//Post events to containers
|
|
this.contactContainers(e);
|
|
|
|
//Interconnect with droppables
|
|
if($.ui.ddmanager) $.ui.ddmanager.drag(this, e);
|
|
|
|
this.propagate("sort", e); //Call plugins and callbacks
|
|
this.helper.css({ left: this.position.current.left+'px', top: this.position.current.top+'px' }); // Stick the helper to the cursor
|
|
return false;
|
|
|
|
},
|
|
rearrange: function(e, i, a) {
|
|
a ? a.append(this.currentItem) : i.item[this.direction == 'down' ? 'before' : 'after'](this.currentItem);
|
|
this.refreshPositions(true); //Precompute after each DOM insertion, NOT on mousemove
|
|
if(this.placeholderElement) this.placeholder.css(this.placeholderElement.offset());
|
|
if(this.placeholderElement && this.placeholderElement.is(":visible")) this.placeholder.css({ width: this.placeholderElement.outerWidth(), height: this.placeholderElement.outerHeight() });
|
|
}
|
|
});
|
|
|
|
$.extend($.ui.sortable, {
|
|
getter: "serialize toArray",
|
|
defaults: {
|
|
items: '> *',
|
|
zIndex: 1000
|
|
}
|
|
});
|
|
|
|
|
|
/*
|
|
* Sortable Extensions
|
|
*/
|
|
|
|
$.ui.plugin.add("sortable", "cursor", {
|
|
start: function(e, ui) {
|
|
var t = $('body');
|
|
if (t.css("cursor")) ui.options._cursor = t.css("cursor");
|
|
t.css("cursor", ui.options.cursor);
|
|
},
|
|
stop: function(e, ui) {
|
|
if (ui.options._cursor) $('body').css("cursor", ui.options._cursor);
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("sortable", "zIndex", {
|
|
start: function(e, ui) {
|
|
var t = ui.helper;
|
|
if(t.css("zIndex")) ui.options._zIndex = t.css("zIndex");
|
|
t.css('zIndex', ui.options.zIndex);
|
|
},
|
|
stop: function(e, ui) {
|
|
if(ui.options._zIndex) $(ui.helper).css('zIndex', ui.options._zIndex);
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("sortable", "opacity", {
|
|
start: function(e, ui) {
|
|
var t = ui.helper;
|
|
if(t.css("opacity")) ui.options._opacity = t.css("opacity");
|
|
t.css('opacity', ui.options.opacity);
|
|
},
|
|
stop: function(e, ui) {
|
|
if(ui.options._opacity) $(ui.helper).css('opacity', ui.options._opacity);
|
|
}
|
|
});
|
|
|
|
|
|
$.ui.plugin.add("sortable", "revert", {
|
|
stop: function(e, ui) {
|
|
var self = ui.instance;
|
|
self.cancelHelperRemoval = true;
|
|
var cur = self.currentItem.offset();
|
|
var op = self.helper.offsetParent().offset();
|
|
if(ui.instance.options.zIndex) ui.helper.css('zIndex', ui.instance.options.zIndex); //Do the zIndex again because it already was resetted by the plugin above on stop
|
|
|
|
//Also animate the placeholder if we have one
|
|
if(ui.instance.placeholder) ui.instance.placeholder.animate({ opacity: 'hide' }, parseInt(ui.options.revert, 10) || 500);
|
|
|
|
|
|
ui.helper.animate({
|
|
left: cur.left - op.left - self.margins.left,
|
|
top: cur.top - op.top - self.margins.top
|
|
}, parseInt(ui.options.revert, 10) || 500, function() {
|
|
self.currentItem.css('visibility', 'visible');
|
|
window.setTimeout(function() {
|
|
if(self.placeholder) self.placeholder.remove();
|
|
self.helper.remove();
|
|
if(ui.options._zIndex) ui.helper.css('zIndex', ui.options._zIndex);
|
|
}, 50);
|
|
});
|
|
}
|
|
});
|
|
|
|
|
|
$.ui.plugin.add("sortable", "containment", {
|
|
start: function(e, ui) {
|
|
|
|
var o = ui.options;
|
|
if((o.containment.left != undefined || o.containment.constructor == Array) && !o._containment) return;
|
|
if(!o._containment) o._containment = o.containment;
|
|
|
|
if(o._containment == 'parent') o._containment = this[0].parentNode;
|
|
if(o._containment == 'sortable') o._containment = this[0];
|
|
if(o._containment == 'document') {
|
|
o.containment = [
|
|
0,
|
|
0,
|
|
$(document).width(),
|
|
($(document).height() || document.body.parentNode.scrollHeight)
|
|
];
|
|
} else { //I'm a node, so compute top/left/right/bottom
|
|
|
|
var ce = $(o._containment);
|
|
var co = ce.offset();
|
|
|
|
o.containment = [
|
|
co.left,
|
|
co.top,
|
|
co.left+(ce.outerWidth() || ce[0].scrollWidth),
|
|
co.top+(ce.outerHeight() || ce[0].scrollHeight)
|
|
];
|
|
}
|
|
|
|
},
|
|
sort: function(e, ui) {
|
|
|
|
var o = ui.options;
|
|
var h = ui.helper;
|
|
var c = o.containment;
|
|
var self = ui.instance;
|
|
var borderLeft = (parseInt(self.offsetParent.css("borderLeftWidth"), 10) || 0);
|
|
var borderRight = (parseInt(self.offsetParent.css("borderRightWidth"), 10) || 0);
|
|
var borderTop = (parseInt(self.offsetParent.css("borderTopWidth"), 10) || 0);
|
|
var borderBottom = (parseInt(self.offsetParent.css("borderBottomWidth"), 10) || 0);
|
|
|
|
if(c.constructor == Array) {
|
|
if((self.position.absolute.left < c[0])) self.position.current.left = c[0] - self.offsets.parent.left - self.margins.left;
|
|
if((self.position.absolute.top < c[1])) self.position.current.top = c[1] - self.offsets.parent.top - self.margins.top;
|
|
if(self.position.absolute.left - c[2] + self.helperProportions.width >= 0) self.position.current.left = c[2] - self.offsets.parent.left - self.helperProportions.width - self.margins.left - borderLeft - borderRight;
|
|
if(self.position.absolute.top - c[3] + self.helperProportions.height >= 0) self.position.current.top = c[3] - self.offsets.parent.top - self.helperProportions.height - self.margins.top - borderTop - borderBottom;
|
|
} else {
|
|
if((ui.position.left < c.left)) self.position.current.left = c.left;
|
|
if((ui.position.top < c.top)) self.position.current.top = c.top;
|
|
if(ui.position.left - self.offsetParent.innerWidth() + self.helperProportions.width + c.right + borderLeft + borderRight >= 0) self.position.current.left = self.offsetParent.innerWidth() - self.helperProportions.width - c.right - borderLeft - borderRight;
|
|
if(ui.position.top - self.offsetParent.innerHeight() + self.helperProportions.height + c.bottom + borderTop + borderBottom >= 0) self.position.current.top = self.offsetParent.innerHeight() - self.helperProportions.height - c.bottom - borderTop - borderBottom;
|
|
}
|
|
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("sortable", "axis", {
|
|
sort: function(e, ui) {
|
|
var o = ui.options;
|
|
if(o.constraint) o.axis = o.constraint; //Legacy check
|
|
o.axis == 'x' ? ui.instance.position.current.top = ui.instance.originalPosition.top : ui.instance.position.current.left = ui.instance.originalPosition.left;
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("sortable", "scroll", {
|
|
start: function(e, ui) {
|
|
var o = ui.options;
|
|
o.scrollSensitivity = o.scrollSensitivity || 20;
|
|
o.scrollSpeed = o.scrollSpeed || 20;
|
|
|
|
ui.instance.overflowY = function(el) {
|
|
do { if((/auto|scroll/).test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-y'))) return el; el = el.parent(); } while (el[0].parentNode);
|
|
return $(document);
|
|
}(this);
|
|
ui.instance.overflowX = function(el) {
|
|
do { if((/auto|scroll/).test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-x'))) return el; el = el.parent(); } while (el[0].parentNode);
|
|
return $(document);
|
|
}(this);
|
|
|
|
if(ui.instance.overflowY[0] != document && ui.instance.overflowY[0].tagName != 'HTML') ui.instance.overflowYstart = ui.instance.overflowY[0].scrollTop;
|
|
if(ui.instance.overflowX[0] != document && ui.instance.overflowX[0].tagName != 'HTML') ui.instance.overflowXstart = ui.instance.overflowX[0].scrollLeft;
|
|
|
|
},
|
|
sort: function(e, ui) {
|
|
|
|
var o = ui.options;
|
|
var i = ui.instance;
|
|
|
|
if(i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') {
|
|
if(i.overflowY[0].offsetHeight - (ui.position.top - i.overflowY[0].scrollTop + i.clickOffset.top) < o.scrollSensitivity)
|
|
i.overflowY[0].scrollTop = i.overflowY[0].scrollTop + o.scrollSpeed;
|
|
if((ui.position.top - i.overflowY[0].scrollTop + i.clickOffset.top) < o.scrollSensitivity)
|
|
i.overflowY[0].scrollTop = i.overflowY[0].scrollTop - o.scrollSpeed;
|
|
} else {
|
|
//$(document.body).append('<p>'+(e.pageY - $(document).scrollTop())+'</p>');
|
|
if(e.pageY - $(document).scrollTop() < o.scrollSensitivity)
|
|
$(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
|
|
if($(window).height() - (e.pageY - $(document).scrollTop()) < o.scrollSensitivity)
|
|
$(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
|
|
}
|
|
|
|
if(i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') {
|
|
if(i.overflowX[0].offsetWidth - (ui.position.left - i.overflowX[0].scrollLeft + i.clickOffset.left) < o.scrollSensitivity)
|
|
i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft + o.scrollSpeed;
|
|
if((ui.position.top - i.overflowX[0].scrollLeft + i.clickOffset.left) < o.scrollSensitivity)
|
|
i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft - o.scrollSpeed;
|
|
} else {
|
|
if(e.pageX - $(document).scrollLeft() < o.scrollSensitivity)
|
|
$(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
|
|
if($(window).width() - (e.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
|
|
$(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
|
|
}
|
|
|
|
//ui.instance.recallOffset(e);
|
|
i.offset = {
|
|
left: i.mouse.start.left - i.originalPosition.left + (i.overflowXstart !== undefined ? i.overflowXstart - i.overflowX[0].scrollLeft : 0),
|
|
top: i.mouse.start.top - i.originalPosition.top + (i.overflowYstart !== undefined ? i.overflowYstart - i.overflowX[0].scrollTop : 0)
|
|
};
|
|
|
|
}
|
|
});
|
|
|
|
})(jQuery);
|