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sortable.js
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/* eslint-disable eslint-comments/no-unlimited-disable */ /* eslint-disable */ /*! * jQuery UI Sortable 1.9.2 * http://jqueryui.com * * Copyright 2012 jQuery Foundation and other contributors * Released under the MIT license. * http://jquery.org/license * * http://api.jqueryui.com/sortable/ * * Depends: * jquery.ui.core.js * jquery.ui.mouse.js * jquery.ui.widget.js */ import $ from 'jquery' import './core' import './mouse' import './widget' // (function( $, undefined ) { $.widget("ui.sortable", $.ui.mouse, { version: "1.9.2", widgetEventPrefix: "sort", ready: false, options: { appendTo: "parent", axis: false, connectWith: false, containment: false, cursor: 'auto', cursorAt: false, dropOnEmpty: true, forcePlaceholderSize: false, forceHelperSize: false, grid: false, handle: false, helper: "original", items: '> *', opacity: false, placeholder: false, revert: false, scroll: true, scrollSensitivity: 20, scrollSpeed: 20, scope: "default", tolerance: "intersect", zIndex: 1000 }, _create: function() { var o = this.options; this.containerCache = {}; this.element.addClass("ui-sortable"); //Get the items this.refresh(); //Let's determine if the items are being displayed horizontally this.floating = this.items.length ? o.axis === 'x' || (/left|right/).test(this.items[0].item.css('float')) || (/inline|table-cell/).test(this.items[0].item.css('display')) : false; //Let's determine the parent's offset this.offset = this.element.offset(); //Initialize mouse events for interaction this._mouseInit(); //We're ready to go this.ready = true }, _destroy: function() { this.element .removeClass("ui-sortable ui-sortable-disabled"); this._mouseDestroy(); for ( var i = this.items.length - 1; i >= 0; i-- ) this.items[i].item.removeData(this.widgetName + "-item"); return this; }, _setOption: function(key, value){ if ( key === "disabled" ) { this.options[ key ] = value; this.widget().toggleClass( "ui-sortable-disabled", !!value ); } else { // Don't call widget base _setOption for disable as it adds ui-state-disabled class $.Widget.prototype._setOption.apply(this, arguments); } }, _mouseCapture: function(event, overrideHandle) { var that = this; if (this.reverting) { return false; } if(this.options.disabled || this.options.type == 'static') return false; //We have to refresh the items data once first this._refreshItems(event); //Find out if the clicked node (or one of its parents) is a actual item in this.items var currentItem = null, nodes = $(event.target).parents().each(function() { if($.data(this, that.widgetName + '-item') == that) { currentItem = $(this); return false; } }); if($.data(event.target, that.widgetName + '-item') == that) currentItem = $(event.target); if(!currentItem) return false; if(this.options.handle && !overrideHandle) { var validHandle = false; $(this.options.handle, currentItem).find("*").andSelf().each(function() { if(this == event.target) validHandle = true; }); if(!validHandle) return false; } this.currentItem = currentItem; this._removeCurrentsFromItems(); return true; }, _mouseStart: function(event, overrideHandle, noActivation) { var o = this.options; this.currentContainer = this; //We only need to call refreshPositions, because the refreshItems call has been moved to mouseCapture this.refreshPositions(); //Create and append the visible helper this.helper = this._createHelper(event); //Cache the helper size this._cacheHelperProportions(); /* * - Position generation - * This block generates everything position related - it's the core of draggables. */ //Cache the margins of the original element this._cacheMargins(); //Get the next scrolling parent this.scrollParent = this.helper.scrollParent(); //The element's absolute position on the page minus margins this.offset = this.currentItem.offset(); this.offset = { top: this.offset.top - this.margins.top, left: this.offset.left - this.margins.left }; $.extend(this.offset, { click: { //Where the click happened, relative to the element left: event.pageX - this.offset.left, top: event.pageY - this.offset.top }, parent: this._getParentOffset(), relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper }); // Only after we got the offset, we can change the helper's position to absolute // TODO: Still need to figure out a way to make relative sorting possible this.helper.css("position", "absolute"); this.cssPosition = this.helper.css("position"); //Generate the original position this.originalPosition = this._generatePosition(event); this.originalPageX = event.pageX; this.originalPageY = event.pageY; //Adjust the mouse offset relative to the helper if 'cursorAt' is supplied (o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt)); //Cache the former DOM position this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] }; //If the helper is not the original, hide the original so it's not playing any role during the drag, won't cause anything bad this way if(this.helper[0] != this.currentItem[0]) { this.currentItem.hide(); } //Create the placeholder this._createPlaceholder(); //Set a containment if given in the options if(o.containment) this._setContainment(); if(o.cursor) { // cursor option if ($('body').css("cursor")) this._storedCursor = $('body').css("cursor"); $('body').css("cursor", o.cursor); } if(o.opacity) { // opacity option if (this.helper.css("opacity")) this._storedOpacity = this.helper.css("opacity"); this.helper.css("opacity", o.opacity); } if(o.zIndex) { // zIndex option if (this.helper.css("zIndex")) this._storedZIndex = this.helper.css("zIndex"); this.helper.css("zIndex", o.zIndex); } //Prepare scrolling if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') this.overflowOffset = this.scrollParent.offset(); //Call callbacks this._trigger("start", event, this._uiHash()); //Recache the helper size if(!this._preserveHelperProportions) this._cacheHelperProportions(); //Post 'activate' events to possible containers if(!noActivation) { for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i]._trigger("activate", event, this._uiHash(this)); } } //Prepare possible droppables if($.ui.ddmanager) $.ui.ddmanager.current = this; if ($.ui.ddmanager && !o.dropBehaviour) $.ui.ddmanager.prepareOffsets(this, event); this.dragging = true; this.helper.addClass("ui-sortable-helper"); this._mouseDrag(event); //Execute the drag once - this causes the helper not to be visible before getting its correct position return true; }, _mouseDrag: function(event) { //Compute the helpers position this.position = this._generatePosition(event); this.positionAbs = this._convertPositionTo("absolute"); if (!this.lastPositionAbs) { this.lastPositionAbs = this.positionAbs; } //Do scrolling if(this.options.scroll) { var o = this.options, scrolled = false; if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') { if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed; else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity) this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed; if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed; else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity) this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed; } else { if(event.pageY - $(document).scrollTop() < o.scrollSensitivity) scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed); else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity) scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed); if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity) scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed); else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity) scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed); } if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) $.ui.ddmanager.prepareOffsets(this, event); } //Regenerate the absolute position used for position checks this.positionAbs = this._convertPositionTo("absolute"); //Set the helper position if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px'; if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px'; //Rearrange for (var i = this.items.length - 1; i >= 0; i--) { //Cache variables and intersection, continue if no intersection var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item); if (!intersection) continue; // Only put the placeholder inside the current Container, skip all // items form other containers. This works because when moving // an item from one container to another the // currentContainer is switched before the placeholder is moved. // // Without this moving items in "sub-sortables" can cause the placeholder to jitter // beetween the outer and inner container. if (item.instance !== this.currentContainer) continue; if (itemElement != this.currentItem[0] //cannot intersect with itself && this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before && !$.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked && (this.options.type == 'semi-dynamic' ? !$.contains(this.element[0], itemElement) : true) //&& itemElement.parentNode == this.placeholder[0].parentNode // only rearrange items within the same container ) { this.direction = intersection == 1 ? "down" : "up"; if (this.options.tolerance == "pointer" || this._intersectsWithSides(item)) { this._rearrange(event, item); } else { break; } this._trigger("change", event, this._uiHash()); break; } } //Post events to containers this._contactContainers(event); //Interconnect with droppables if($.ui.ddmanager) $.ui.ddmanager.drag(this, event); //Call callbacks this._trigger('sort', event, this._uiHash()); this.lastPositionAbs = this.positionAbs; return false; }, _mouseStop: function(event, noPropagation) { if(!event) return; //If we are using droppables, inform the manager about the drop if ($.ui.ddmanager && !this.options.dropBehaviour) $.ui.ddmanager.drop(this, event); if(this.options.revert) { var that = this; var cur = this.placeholder.offset(); this.reverting = true; $(this.helper).animate({ left: cur.left - this.offset.parent.left - this.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft), top: cur.top - this.offset.parent.top - this.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop) }, parseInt(this.options.revert, 10) || 500, function() { that._clear(event); }); } else { this._clear(event, noPropagation); } return false; }, cancel: function() { if(this.dragging) { this._mouseUp({ target: null }); if(this.options.helper == "original") this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper"); else this.currentItem.show(); //Post deactivating events to containers for (var i = this.containers.length - 1; i >= 0; i--){ this.containers[i]._trigger("deactivate", null, this._uiHash(this)); if(this.containers[i].containerCache.over) { this.containers[i]._trigger("out", null, this._uiHash(this)); this.containers[i].containerCache.over = 0; } } } if (this.placeholder) { //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node! if(this.placeholder[0].parentNode) this.placeholder[0].parentNode.removeChild(this.placeholder[0]); if(this.options.helper != "original" && this.helper && this.helper[0].parentNode) this.helper.remove(); $.extend(this, { helper: null, dragging: false, reverting: false, _noFinalSort: null }); if(this.domPosition.prev) { $(this.domPosition.prev).after(this.currentItem); } else { $(this.domPosition.parent).prepend(this.currentItem); } } return this; }, serialize: function(o) { var items = this._getItemsAsjQuery(o && o.connected); var str = []; o = o || {}; $(items).each(function() { var res = ($(o.item || this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/)); if(res) str.push((o.key || res[1]+'[]')+'='+(o.key && o.expression ? res[1] : res[2])); }); if(!str.length && o.key) { str.push(o.key + '='); } return str.join('&'); }, toArray: function(o) { var items = this._getItemsAsjQuery(o && o.connected); var ret = []; o = o || {}; items.each(function() { ret.push($(o.item || this).attr(o.attribute || 'id') || ''); }); return ret; }, /* Be careful with the following core functions */ _intersectsWith: function(item) { var x1 = this.positionAbs.left, x2 = x1 + this.helperProportions.width, y1 = this.positionAbs.top, y2 = y1 + this.helperProportions.height; var l = item.left, r = l + item.width, t = item.top, b = t + item.height; var dyClick = this.offset.click.top, dxClick = this.offset.click.left; var isOverElement = (y1 + dyClick) > t && (y1 + dyClick) < b && (x1 + dxClick) > l && (x1 + dxClick) < r; if( this.options.tolerance == "pointer" || this.options.forcePointerForContainers || (this.options.tolerance != "pointer" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height']) ) { return isOverElement; } 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 } }, _intersectsWithPointer: function(item) { var isOverElementHeight = (this.options.axis === 'x') || $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height), isOverElementWidth = (this.options.axis === 'y') || $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width), isOverElement = isOverElementHeight && isOverElementWidth, verticalDirection = this._getDragVerticalDirection(), horizontalDirection = this._getDragHorizontalDirection(); if (!isOverElement) return false; return this.floating ? ( ((horizontalDirection && horizontalDirection == "right") || verticalDirection == "down") ? 2 : 1 ) : ( verticalDirection && (verticalDirection == "down" ? 2 : 1) ); }, _intersectsWithSides: function(item) { var isOverBottomHalf = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height), isOverRightHalf = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left + (item.width/2), item.width), verticalDirection = this._getDragVerticalDirection(), horizontalDirection = this._getDragHorizontalDirection(); if (this.floating && horizontalDirection) { return ((horizontalDirection == "right" && isOverRightHalf) || (horizontalDirection == "left" && !isOverRightHalf)); } else { return verticalDirection && ((verticalDirection == "down" && isOverBottomHalf) || (verticalDirection == "up" && !isOverBottomHalf)); } }, _getDragVerticalDirection: function() { var delta = this.positionAbs.top - this.lastPositionAbs.top; return delta != 0 && (delta > 0 ? "down" : "up"); }, _getDragHorizontalDirection: function() { var delta = this.positionAbs.left - this.lastPositionAbs.left; return delta != 0 && (delta > 0 ? "right" : "left"); }, refresh: function(event) { this._refreshItems(event); this.refreshPositions(); return this; }, _connectWith: function() { var options = this.options; return options.connectWith.constructor == String ? [options.connectWith] : options.connectWith; }, _getItemsAsjQuery: function(connected) { var items = []; var queries = []; var connectWith = this._connectWith(); if(connectWith && connected) { for (var i = connectWith.length - 1; i >= 0; i--){ var cur = $(connectWith[i]); for (var j = cur.length - 1; j >= 0; j--){ var inst = $.data(cur[j], this.widgetName); if(inst && inst != this && !inst.options.disabled) { queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper").not('.ui-sortable-placeholder'), inst]); } }; }; } queries.push([$.isFunction(this.options.items) ? this.options.items.call(this.element, null, { options: this.options, item: this.currentItem }) : $(this.options.items, this.element).not(".ui-sortable-helper").not('.ui-sortable-placeholder'), this]); for (var i = queries.length - 1; i >= 0; i--){ queries[i][0].each(function() { items.push(this); }); }; return $(items); }, _removeCurrentsFromItems: function() { var list = this.currentItem.find(":data(" + this.widgetName + "-item)"); this.items = $.grep(this.items, function (item) { for (var j=0; j < list.length; j++) { if(list[j] == item.item[0]) return false; }; return true; }); }, _refreshItems: function(event) { this.items = []; this.containers = [this]; var items = this.items; var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]]; var connectWith = this._connectWith(); if(connectWith && this.ready) { //Shouldn't be run the first time through due to massive slow-down for (var i = connectWith.length - 1; i >= 0; i--){ var cur = $(connectWith[i]); for (var j = cur.length - 1; j >= 0; j--){ var inst = $.data(cur[j], this.widgetName); if(inst && inst != this && !inst.options.disabled) { queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element[0], event, { item: this.currentItem }) : $(inst.options.items, inst.element), inst]); this.containers.push(inst); } }; }; } for (var i = queries.length - 1; i >= 0; i--) { var targetData = queries[i][1]; var _queries = queries[i][0]; for (var j=0, queriesLength = _queries.length; j < queriesLength; j++) { var item = $(_queries[j]); item.data(this.widgetName + '-item', targetData); // Data for target checking (mouse manager) items.push({ item: item, instance: targetData, width: 0, height: 0, left: 0, top: 0 }); }; }; }, refreshPositions: function(fast) { //This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change if(this.offsetParent && this.helper) { this.offset.parent = this._getParentOffset(); } for (var i = this.items.length - 1; i >= 0; i--){ var item = this.items[i]; //We ignore calculating positions of all connected containers when we're not over them if(item.instance != this.currentContainer && this.currentContainer && item.item[0] != this.currentItem[0]) continue; var t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item; if (!fast) { item.width = t.outerWidth(); item.height = t.outerHeight(); } var p = t.offset(); item.left = p.left; item.top = p.top; }; if(this.options.custom && this.options.custom.refreshContainers) { this.options.custom.refreshContainers.call(this); } else { 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(); }; } return this; }, _createPlaceholder: function(that) { that = that || this; var o = that.options; if(!o.placeholder || o.placeholder.constructor == String) { var className = o.placeholder; o.placeholder = { element: function() { var el = $(document.createElement(that.currentItem[0].nodeName)) .addClass(className || that.currentItem[0].className+" ui-sortable-placeholder") .removeClass("ui-sortable-helper")[0]; if(!className) el.style.visibility = "hidden"; return el; }, update: function(container, p) { // 1. If a className is set as 'placeholder option, we don't force sizes - the class is responsible for that // 2. The option 'forcePlaceholderSize can be enabled to force it even if a class name is specified if(className && !o.forcePlaceholderSize) return; //If the element doesn't have a actual height by itself (without styles coming from a stylesheet), it receives the inline height from the dragged item if(!p.height()) { p.height(that.currentItem.innerHeight() - parseInt(that.currentItem.css('paddingTop')||0, 10) - parseInt(that.currentItem.css('paddingBottom')||0, 10)); }; if(!p.width()) { p.width(that.currentItem.innerWidth() - parseInt(that.currentItem.css('paddingLeft')||0, 10) - parseInt(that.currentItem.css('paddingRight')||0, 10)); }; } }; } //Create the placeholder that.placeholder = $(o.placeholder.element.call(that.element, that.currentItem)); //Append it after the actual current item that.currentItem.after(that.placeholder); //Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317) o.placeholder.update(that, that.placeholder); }, _contactContainers: function(event) { // get innermost container that intersects with item var innermostContainer = null, innermostIndex = null; for (var i = this.containers.length - 1; i >= 0; i--){ // never consider a container that's located within the item itself if($.contains(this.currentItem[0], this.containers[i].element[0])) continue; if(this._intersectsWith(this.containers[i].containerCache)) { // if we've already found a container and it's more "inner" than this, then continue if(innermostContainer && $.contains(this.containers[i].element[0], innermostContainer.element[0])) continue; innermostContainer = this.containers[i]; innermostIndex = i; } else { // container doesn't intersect. trigger "out" event if necessary if(this.containers[i].containerCache.over) { this.containers[i]._trigger("out", event, this._uiHash(this)); this.containers[i].containerCache.over = 0; } } } // if no intersecting containers found, return if(!innermostContainer) return; // move the item into the container if it's not there already if(this.containers.length === 1) { this.containers[innermostIndex]._trigger("over", event, this._uiHash(this)); this.containers[innermostIndex].containerCache.over = 1; } else { //When entering a new container, we will find the item with the least distance and append our item near it var dist = 10000; var itemWithLeastDistance = null; var posProperty = this.containers[innermostIndex].floating ? 'left' : 'top'; var sizeProperty = this.containers[innermostIndex].floating ? 'width' : 'height'; var base = this.positionAbs[posProperty] + this.offset.click[posProperty]; for (var j = this.items.length - 1; j >= 0; j--) { if(!$.contains(this.containers[innermostIndex].element[0], this.items[j].item[0])) continue; if(this.items[j].item[0] == this.currentItem[0]) continue; var cur = this.items[j].item.offset()[posProperty]; var nearBottom = false; if(Math.abs(cur - base) > Math.abs(cur + this.items[j][sizeProperty] - base)){ nearBottom = true; cur += this.items[j][sizeProperty]; } if(Math.abs(cur - base) < dist) { dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j]; this.direction = nearBottom ? "up": "down"; } } if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled return; this.currentContainer = this.containers[innermostIndex]; itemWithLeastDistance ? this._rearrange(event, itemWithLeastDistance, null, true) : this._rearrange(event, null, this.containers[innermostIndex].element, true); this._trigger("change", event, this._uiHash()); this.containers[innermostIndex]._trigger("change", event, this._uiHash(this)); //Update the placeholder this.options.placeholder.update(this.currentContainer, this.placeholder); this.containers[innermostIndex]._trigger("over", event, this._uiHash(this)); this.containers[innermostIndex].containerCache.over = 1; } }, _createHelper: function(event) { var o = this.options; var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper == 'clone' ? this.currentItem.clone() : this.currentItem); if(!helper.parents('body').length) //Add the helper to the DOM if that didn't happen already $(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]); if(helper[0] == this.currentItem[0]) this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left") }; if(helper[0].style.width == '' || o.forceHelperSize) helper.width(this.currentItem.width()); if(helper[0].style.height == '' || o.forceHelperSize) helper.height(this.currentItem.height()); return helper; }, _adjustOffsetFromHelper: function(obj) { if (typeof obj == 'string') { obj = obj.split(' '); } if ($.isArray(obj)) { obj = {left: +obj[0], top: +obj[1] || 0}; } if ('left' in obj) { this.offset.click.left = obj.left + this.margins.left; } if ('right' in obj) { this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left; } if ('top' in obj) { this.offset.click.top = obj.top + this.margins.top; } if ('bottom' in obj) { this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top; } }, _getParentOffset: function() { //Get the offsetParent and cache its position this.offsetParent = this.helper.offsetParent(); var po = this.offsetParent.offset(); // This is a special case where we need to modify a offset calculated on start, since the following happened: // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that // the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) { po.left += this.scrollParent.scrollLeft(); po.top += this.scrollParent.scrollTop(); } if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information || (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.ui.ie)) //Ugly IE fix po = { top: 0, left: 0 }; return { top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0), left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0) }; }, _getRelativeOffset: function() { if(this.cssPosition == "relative") { var p = this.currentItem.position(); return { top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(), left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft() }; } else { return { top: 0, left: 0 }; } }, _cacheMargins: function() { this.margins = { left: (parseInt(this.currentItem.css("marginLeft"),10) || 0), top: (parseInt(this.currentItem.css("marginTop"),10) || 0) }; }, _cacheHelperProportions: function() { this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() }; }, _setContainment: function() { var o = this.options; if(o.containment == 'parent') o.containment = this.helper[0].parentNode; if(o.containment == 'document' || o.containment == 'window') this.containment = [ 0 - this.offset.relative.left - this.offset.parent.left, 0 - this.offset.relative.top - this.offset.parent.top, $(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left, ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top ]; if(!(/^(document|window|parent)$/).test(o.containment)) { var ce = $(o.containment)[0]; var co = $(o.containment).offset(); var over = ($(ce).css("overflow") != 'hidden'); this.containment = [ co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left, co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top, co.left+(over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - (parseInt($(ce).css("paddingRight"),10) || 0) - this.helperProportions.width - this.margins.left, co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - (parseInt($(ce).css("paddingBottom"),10) || 0) - this.helperProportions.height - this.margins.top ]; } }, _convertPositionTo: function(d, pos) { if(!pos) pos = this.position; var mod = d == "absolute" ? 1 : -1; var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName); return { top: ( pos.top // The absolute mouse position + this.offset.relative.top * mod // Only for relative positioned nodes: Relative offset from element to offset parent + this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border) - ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod) ), left: ( pos.left // The absolute mouse position + this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent + this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border) - ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod) ) }; }, _generatePosition: function(event) { var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName); // This is another very weird special case that only happens for relative elements: // 1. If the css position is relative // 2. and the scroll parent is the document or similar to the offset parent // we have to refresh the relative offset during the scroll so there are no jumps if(this.cssPosition == 'relative' && !(this.scrollParent[0] != document && this.scrollParent[0] != this.offsetParent[0])) { this.offset.relative = this._getRelativeOffset(); } var pageX = event.pageX; var pageY = event.pageY; /* * - Position constraining - * Constrain the position to a mix of grid, containment. */ if(this.originalPosition) { //If we are not dragging yet, we won't check for options if(this.containment) { if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left; if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top; if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left; if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top; } if(o.grid) { var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1]; pageY = this.containment ? (!(top - this.offset.click.top < this.containment[1] || top - this.offset.click.top > this.containment[3]) ? top : (!(top - this.offset.click.top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top; var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0]; pageX = this.containment ? (!(left - this.offset.click.left < this.containment[0] || left - this.offset.click.left > this.containment[2]) ? left : (!(left - this.offset.click.left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left; } } return { top: ( pageY // The absolute mouse position - this.offset.click.top // Click offset (relative to the element) - this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent - this.offset.parent.top // The offsetParent's offset without borders (offset + border) + ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) )) ), left: ( pageX // The absolute mouse position - this.offset.click.left // Click offset (relative to the element) - this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent - this.offset.parent.left // The offsetParent's offset without borders (offset + border) + ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() )) ) }; }, _rearrange: function(event, i, a, hardRefresh) { a ? a[0].appendChild(this.placeholder[0]) : i.item[0].parentNode.insertBefore(this.placeholder[0], (this.direction == 'down' ? i.item[0] : i.item[0].nextSibling)); //Various things done here to improve the performance: // 1. we create a setTimeout, that calls refreshPositions // 2. on the instance, we have a counter variable, that get's higher after every append // 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same // 4. this lets only the last addition to the timeout stack through this.counter = this.counter ? ++this.counter : 1; var counter = this.counter; this._delay(function() { if(counter == this.counter) this.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove }); }, _clear: function(event, noPropagation) { this.reverting = false; // We delay all events that have to be triggered to after the point where the placeholder has been removed and // everything else normalized again var delayedTriggers = []; // We first have to update the dom position of the actual currentItem // Note: don't do it if the current item is already removed (by a user), or it gets reappended (see #4088) if(!this._noFinalSort && this.currentItem.parent().length) this.placeholder.before(this.currentItem); this._noFinalSort = null; if(this.helper[0] == this.currentItem[0]) { for(var i in this._storedCSS) { if(this._storedCSS[i] == 'auto' || this._storedCSS[i] == 'static') this._storedCSS[i] = ''; } this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper"); } else { this.currentItem.show(); } if(this.fromOutside && !noPropagation) delayedTriggers.push(function(event) { this._trigger("receive", event, this._uiHash(this.fromOutside)); }); if((this.fromOutside || this.domPosition.prev != this.currentItem.prev().not(".ui-sortable-helper")[0] || this.domPosition.parent != this.currentItem.parent()[0]) && !noPropagation) delayedTriggers.push(function(event) { this._trigger("update", event, this._uiHash()); }); //Trigger update callback if the DOM position has changed // Check if the items Container has Changed and trigger appropriate // events. if (this !== this.currentContainer) { if(!noPropagation) { delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); }); delayedTriggers.push((function(c) { return function(event) { c._trigger("receive", event, this._uiHash(this)); }; }).call(this, this.currentContainer)); delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this)); }; }).call(this, this.currentContainer)); } } //Post events to containers for (var i = this.containers.length - 1; i >= 0; i--){ if(!noPropagation) delayedTriggers.push((function(c) { return function(event) { c._trigger("deactivate", event, this._uiHash(this)); }; }).call(this, this.containers[i])); if(this.containers[i].containerCache.over) { delayedTriggers.push((function(c) { return function(event) { c._trigger("out", event, this._uiHash(this)); }; }).call(this, this.containers[i])); this.containers[i].containerCache.over = 0; } } //Do what was originally in plugins if(this._storedCursor) $('body').css("cursor", this._storedCursor); //Reset cursor if(this._storedOpacity) this.helper.css("opacity", this._storedOpacity); //Reset opacity if(this._storedZIndex) this.helper.css("zIndex", this._storedZIndex == 'auto' ? '' : this._storedZIndex); //Reset z-index this.dragging = false; if(this.cancelHelperRemoval) { if(!noPropagation) { this._trigger("beforeStop", event, this._uiHash()); for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events this._trigger("stop", event, this._uiHash()); } this.fromOutside = false; return false; } if(!noPropagation) this._trigger("beforeStop", event, this._uiHash()); //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node! this.placeholder[0].parentNode.removeChild(this.placeholder[0]); if(this.helper[0] != this.currentItem[0]) this.helper.remove(); this.helper = null; if(!noPropagation) { for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events this._trigger("stop", event, this._uiHash()); } this.fromOutside = false; return true; }, _trigger: function() { if ($.Widget.prototype._trigger.apply(this, arguments) === false) { this.cancel(); } }, _uiHash: function(_inst) { var inst = _inst || this; return { helper: inst.helper, placeholder: inst.placeholder || $([]), position: inst.position, originalPosition: inst.originalPosition, offset: inst.positionAbs, item: inst.currentItem, sender: _inst ? _inst.element : null }; } }); // })(jQuery);