/* * jQuery UI Sortable * * Copyright (c) 2008 Paul Bakaus * Dual licensed under the MIT (MIT-LICENSE.txt) * and GPL (GPL-LICENSE.txt) licenses. * * http://docs.jquery.com/UI/Sortables * * Depends: * ui.core.js * * Revision: $Id: ui.sortable.js 5433 2008-05-04 20:07:17Z joern.zaefferer $ */ ;(function($) { function contains(a, b) { var safari2 = $.browser.safari && $.browser.version < 522; if (a.contains && !safari2) { return a.contains(b); } if (a.compareDocumentPosition) return !!(a.compareDocumentPosition(b) & 16); while (b = b.parentNode) if (b == a) return true; return false; }; $.widget("ui.sortable", { init: function() { var o = this.options; this.containerCache = {}; this.element.addClass("ui-sortable"); //Get the items this.refresh(); //Let's determine if the items are floating this.floating = this.items.length ? (/left|right/).test(this.items[0].item.css('float')) : false; //Let's determine the parent's offset if(!(/(relative|absolute|fixed)/).test(this.element.css('position'))) this.element.css('position', 'relative'); this.offset = this.element.offset(); //Initialize mouse events for interaction this.element.mouse({ executor: this, delay: o.delay, distance: o.distance || 1, dragPrevention: o.prevention ? o.prevention.toLowerCase().split(',') : ['input','textarea','button','select','option'], start: this.start, stop: this.stop, drag: this.drag, condition: function(e) { if(this.options.disabled || this.options.type == 'static') return false; //Find out if the clicked node (or one of its parents) is a actual item in this.items var currentItem = null, nodes = $(e.target).parents().each(function() { if($.data(this, 'sortable-item')) { currentItem = $(this); return false; } }); if($.data(e.target, 'sortable-item')) currentItem = $(e.target); if(!currentItem) return false; if(this.options.handle) { var validHandle = false; $(this.options.handle, currentItem).each(function() { if(this == e.target) validHandle = true; }); if(!validHandle) return false; } this.currentItem = currentItem; return true; } }); }, plugins: {}, ui: function(inst) { return { helper: (inst || this)["helper"], placeholder: (inst || this)["placeholder"] || $([]), position: (inst || this)["position"].current, absolutePosition: (inst || this)["position"].absolute, instance: this, options: this.options, element: this.element, item: (inst || this)["currentItem"], sender: inst ? inst.element : null }; }, propagate: function(n,e,inst) { $.ui.plugin.call(this, n, [e, this.ui(inst)]); this.element.triggerHandler(n == "sort" ? n : "sort"+n, [e, this.ui(inst)], this.options[n]); }, serialize: function(o) { var items = $(this.options.items, this.element).not('.ui-sortable-helper'); //Only the items of the sortable itself var str = []; o = o || {}; items.each(function() { var res = ($(this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/)); if(res) str.push((o.key || res[1])+'[]='+(o.key ? res[1] : res[2])); }); return str.join('&'); }, toArray: function(attr) { var items = $(this.options.items, this.element).not('.ui-sortable-helper'); //Only the items of the sortable itself var ret = []; items.each(function() { ret.push($(this).attr(attr || 'id')); }); return ret; }, enable: function() { this.element.removeClass("ui-sortable-disabled"); this.options.disabled = false; }, disable: function() { this.element.addClass("ui-sortable-disabled"); this.options.disabled = true; }, /* Be careful with the following core functions */ intersectsWith: function(item) { var x1 = this.position.absolute.left, x2 = x1 + this.helperProportions.width, y1 = this.position.absolute.top, y2 = y1 + this.helperProportions.height; var l = item.left, r = l + item.width, t = item.top, b = t + item.height; if(this.options.tolerance == "pointer") { return (y1 + this.clickOffset.top > t && y1 + this.clickOffset.top < b && x1 + this.clickOffset.left > l && x1 + this.clickOffset.left < r); } else { return (l < x1 + (this.helperProportions.width / 2) // Right Half && x2 - (this.helperProportions.width / 2) < r // Left Half && t < y1 + (this.helperProportions.height / 2) // Bottom Half && y2 - (this.helperProportions.height / 2) < b ); // Top Half } }, intersectsWithEdge: function(item) { var x1 = this.position.absolute.left, x2 = x1 + this.helperProportions.width, y1 = this.position.absolute.top, y2 = y1 + this.helperProportions.height; var l = item.left, r = l + item.width, t = item.top, b = t + item.height; if(this.options.tolerance == "pointer") { if(!(y1 + this.clickOffset.top > t && y1 + this.clickOffset.top < b && x1 + this.clickOffset.left > l && x1 + this.clickOffset.left < r)) return false; if(this.floating) { if(x1 + this.clickOffset.left > l && x1 + this.clickOffset.left < l + item.width/2) return 2; if(x1 + this.clickOffset.left > l+item.width/2 && x1 + this.clickOffset.left < r) return 1; } else { if(y1 + this.clickOffset.top > t && y1 + this.clickOffset.top < t + item.height/2) return 2; if(y1 + this.clickOffset.top > t+item.height/2 && y1 + this.clickOffset.top < b) return 1; } } else { if (!(l < x1 + (this.helperProportions.width / 2) // Right Half && x2 - (this.helperProportions.width / 2) < r // Left Half && t < y1 + (this.helperProportions.height / 2) // Bottom Half && y2 - (this.helperProportions.height / 2) < b )) return false; // Top Half if(this.floating) { if(x2 > l && x1 < l) return 2; //Crosses left edge if(x1 < r && x2 > r) return 1; //Crosses right edge } else { if(y2 > t && y1 < t) return 1; //Crosses top edge if(y1 < b && y2 > b) return 2; //Crosses bottom edge } } return false; }, //This method checks approximately if the item is dragged in a container, but doesn't touch any items inEmptyZone: function(container) { if(!$(container.options.items, container.element).length) { return container.options.dropOnEmpty ? true : false; }; var last = $(container.options.items, container.element).not('.ui-sortable-helper'); last = $(last[last.length-1]); var top = last.offset()[this.floating ? 'left' : 'top'] + last[0][this.floating ? 'offsetWidth' : 'offsetHeight']; return (this.position.absolute[this.floating ? 'left' : 'top'] > top); }, refresh: function() { this.refreshItems(); this.refreshPositions(); }, refreshItems: function() { this.items = []; this.containers = [this]; var items = this.items; var queries = [$(this.options.items, this.element)]; if(this.options.connectWith) { for (var i = this.options.connectWith.length - 1; i >= 0; i--){ var cur = $(this.options.connectWith[i]); for (var j = cur.length - 1; j >= 0; j--){ var inst = $.data(cur[j], 'sortable'); if(inst && !inst.options.disabled) { queries.push($(inst.options.items, inst.element)); this.containers.push(inst); } }; }; } for (var i = queries.length - 1; i >= 0; i--){ queries[i].each(function() { $.data(this, 'sortable-item', true); // Data for target checking (mouse manager) items.push({ item: $(this), width: 0, height: 0, left: 0, top: 0 }); }); }; }, refreshPositions: function(fast) { for (var i = this.items.length - 1; i >= 0; i--){ var t = this.items[i].item; if(!fast) this.items[i].width = (this.options.toleranceElement ? $(this.options.toleranceElement, t) : t).outerWidth(); if(!fast) this.items[i].height = (this.options.toleranceElement ? $(this.options.toleranceElement, t) : t).outerHeight(); var p = (this.options.toleranceElement ? $(this.options.toleranceElement, t) : t).offset(); this.items[i].left = p.left; this.items[i].top = p.top; }; for (var i = this.containers.length - 1; i >= 0; i--){ var p =this.containers[i].element.offset(); this.containers[i].containerCache.left = p.left; this.containers[i].containerCache.top = p.top; this.containers[i].containerCache.width = this.containers[i].element.outerWidth(); this.containers[i].containerCache.height = this.containers[i].element.outerHeight(); }; }, destroy: function() { this.element .removeClass("ui-sortable ui-sortable-disabled") .removeData("sortable") .unbind(".sortable") .mouse("destroy"); for ( var i = this.items.length - 1; i >= 0; i-- ) this.items[i].item.removeData("sortable-item"); }, createPlaceholder: function(that) { (that || this).placeholderElement = this.options.placeholderElement ? $(this.options.placeholderElement, (that || this).currentItem) : (that || this).currentItem; (that || this).placeholder = $('
') .addClass(this.options.placeholder) .appendTo('body') .css({ position: 'absolute' }) .css((that || this).placeholderElement.offset()) .css({ width: (that || this).placeholderElement.outerWidth(), height: (that || this).placeholderElement.outerHeight() }) ; }, contactContainers: function(e) { for (var i = this.containers.length - 1; i >= 0; i--){ if(this.intersectsWith(this.containers[i].containerCache)) { if(!this.containers[i].containerCache.over) { if(this.currentContainer != this.containers[i]) { //When entering a new container, we will find the item with the least distance and append our item near it var dist = 10000; var itemWithLeastDistance = null; var base = this.position.absolute[this.containers[i].floating ? 'left' : 'top']; for (var j = this.items.length - 1; j >= 0; j--) { if(!contains(this.containers[i].element[0], this.items[j].item[0])) continue; var cur = this.items[j][this.containers[i].floating ? 'left' : 'top']; if(Math.abs(cur - base) < dist) { dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j]; } } //We also need to exchange the placeholder if(this.placeholder) this.placeholder.remove(); if(this.containers[i].options.placeholder) { this.containers[i].createPlaceholder(this); } else { this.placeholder = null; this.placeholderElement = null; } itemWithLeastDistance ? this.rearrange(e, itemWithLeastDistance) : this.rearrange(e, null, this.containers[i].element); this.propagate("change", e); //Call plugins and callbacks this.containers[i].propagate("change", e, this); //Call plugins and callbacks this.currentContainer = this.containers[i]; } this.containers[i].propagate("over", e, this); this.containers[i].containerCache.over = 1; } } else { if(this.containers[i].containerCache.over) { this.containers[i].propagate("out", e, this); this.containers[i].containerCache.over = 0; } } }; }, start: function(e,el) { var o = this.options; this.currentContainer = this; this.refresh(); //Create and append the visible helper this.helper = typeof o.helper == 'function' ? $(o.helper.apply(this.element[0], [e, this.currentItem])) : this.currentItem.clone(); 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 this.helper.css({ position: 'absolute', clear: 'both' }).addClass('ui-sortable-helper'); //Position it absolutely and add a helper class //Prepare variables for position generation $.extend(this, { offsetParent: this.helper.offsetParent(), offsets: { absolute: this.currentItem.offset() }, mouse: { start: { top: e.pageY, left: e.pageX } }, margins: { top: parseInt(this.currentItem.css("marginTop")) || 0, left: parseInt(this.currentItem.css("marginLeft")) || 0 } }); //The relative click offset this.offsets.parent = this.offsetParent.offset(); this.clickOffset = { left: e.pageX - this.offsets.absolute.left, top: e.pageY - this.offsets.absolute.top }; this.originalPosition = { left: this.offsets.absolute.left - this.offsets.parent.left - this.margins.left, top: this.offsets.absolute.top - this.offsets.parent.top - this.margins.top } //Generate a flexible offset that will later be subtracted from e.pageX/Y //I hate margins - they need to be removed before positioning the element absolutely.. this.offset = { left: e.pageX - this.originalPosition.left, top: e.pageY - this.originalPosition.top }; //Save the first time position $.extend(this, { position: { current: { top: e.pageY - this.offset.top, left: e.pageX - this.offset.left }, absolute: { left: e.pageX - this.clickOffset.left, top: e.pageY - this.clickOffset.top }, dom: this.currentItem.prev()[0] } }); //If o.placeholder is used, create a new element at the given position with the class if(o.placeholder) this.createPlaceholder(); this.propagate("start", e); //Call plugins and callbacks this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() }; //Save and store the helper proportions //If we have something in cursorAt, we'll use it if(o.cursorAt) { if(o.cursorAt.top != undefined || o.cursorAt.bottom != undefined) { this.offset.top -= this.clickOffset.top - (o.cursorAt.top != undefined ? o.cursorAt.top : (this.helperProportions.height - o.cursorAt.bottom)); this.clickOffset.top = (o.cursorAt.top != undefined ? o.cursorAt.top : (this.helperProportions.height - o.cursorAt.bottom)); } if(o.cursorAt.left != undefined || o.cursorAt.right != undefined) { this.offset.left -= this.clickOffset.left - (o.cursorAt.left != undefined ? o.cursorAt.left : (this.helperProportions.width - o.cursorAt.right)); this.clickOffset.left = (o.cursorAt.left != undefined ? o.cursorAt.left : (this.helperProportions.width - o.cursorAt.right)); } } if(this.options.placeholder != 'clone') $(this.currentItem).css('visibility', 'hidden'); //Set the original element visibility to hidden to still fill out the white space for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i].propagate("activate", e, this); } //Post 'activate' events to possible containers //Prepare possible droppables if($.ui.ddmanager) $.ui.ddmanager.current = this; if ($.ui.ddmanager && !o.dropBehaviour) $.ui.ddmanager.prepareOffsets(this, e); this.dragging = true; return false; }, stop: function(e) { this.propagate("stop", e); //Call plugins and trigger callbacks if(this.position.dom != this.currentItem.prev()[0]) this.propagate("update", e); //Trigger update callback if the DOM position has changed if(!contains(this.element[0], this.currentItem[0])) { //Node was moved out of the current element this.propagate("remove", e); for (var i = this.containers.length - 1; i >= 0; i--){ if(contains(this.containers[i].element[0], this.currentItem[0])) { this.containers[i].propagate("update", e, this); this.containers[i].propagate("receive", e, this); } }; }; //Post events to containers for (var i = this.containers.length - 1; i >= 0; i--){ this.containers[i].propagate("deactivate", e, this); if(this.containers[i].containerCache.over) { this.containers[i].propagate("out", e, this); this.containers[i].containerCache.over = 0; } } //If we are using droppables, inform the manager about the drop if ($.ui.ddmanager && !this.options.dropBehaviour) $.ui.ddmanager.drop(this, e); this.dragging = false; if(this.cancelHelperRemoval) return false; $(this.currentItem).css('visibility', ''); if(this.placeholder) this.placeholder.remove(); this.helper.remove(); return false; }, drag: function(e) { //Compute the helpers position this.position.current = { top: e.pageY - this.offset.top, left: e.pageX - this.offset.left }; this.position.absolute = { left: e.pageX - this.clickOffset.left, top: e.pageY - this.clickOffset.top }; //Rearrange for (var i = this.items.length - 1; i >= 0; i--) { var intersection = this.intersectsWithEdge(this.items[i]); if(!intersection) continue; if(this.items[i].item[0] != this.currentItem[0] //cannot intersect with itself && this.currentItem[intersection == 1 ? "next" : "prev"]()[0] != this.items[i].item[0] //no useless actions that have been done before && !contains(this.currentItem[0], this.items[i].item[0]) //no action if the item moved is the parent of the item checked && (this.options.type == 'semi-dynamic' ? !contains(this.element[0], this.items[i].item[0]) : true) ) { this.direction = intersection == 1 ? "down" : "up"; this.rearrange(e, this.items[i]); this.propagate("change", e); //Call plugins and callbacks break; } } //Post events to containers this.contactContainers(e); //Interconnect with droppables if($.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(''+(e.pageY - $(document).scrollTop())+'
'); 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);