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Diffstat (limited to 'wp-includes/js/jquery/ui/sortable.js')
-rw-r--r-- | wp-includes/js/jquery/ui/sortable.js | 1611 |
1 files changed, 1611 insertions, 0 deletions
diff --git a/wp-includes/js/jquery/ui/sortable.js b/wp-includes/js/jquery/ui/sortable.js new file mode 100644 index 0000000..5296109 --- /dev/null +++ b/wp-includes/js/jquery/ui/sortable.js @@ -0,0 +1,1611 @@ +/*! + * jQuery UI Sortable 1.13.2 + * http://jqueryui.com + * + * Copyright jQuery Foundation and other contributors + * Released under the MIT license. + * http://jquery.org/license + */ + +//>>label: Sortable +//>>group: Interactions +//>>description: Enables items in a list to be sorted using the mouse. +//>>docs: http://api.jqueryui.com/sortable/ +//>>demos: http://jqueryui.com/sortable/ +//>>css.structure: ../../themes/base/sortable.css + +( function( factory ) { + "use strict"; + + if ( typeof define === "function" && define.amd ) { + + // AMD. Register as an anonymous module. + define( [ + "jquery", + "./mouse", + "./core" + ], factory ); + } else { + + // Browser globals + factory( jQuery ); + } +} )( function( $ ) { +"use strict"; + +return $.widget( "ui.sortable", $.ui.mouse, { + version: "1.13.2", + 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, + + // Callbacks + activate: null, + beforeStop: null, + change: null, + deactivate: null, + out: null, + over: null, + receive: null, + remove: null, + sort: null, + start: null, + stop: null, + update: null + }, + + _isOverAxis: function( x, reference, size ) { + return ( x >= reference ) && ( x < ( reference + size ) ); + }, + + _isFloating: function( item ) { + return ( /left|right/ ).test( item.css( "float" ) ) || + ( /inline|table-cell/ ).test( item.css( "display" ) ); + }, + + _create: function() { + this.containerCache = {}; + this._addClass( "ui-sortable" ); + + //Get the items + this.refresh(); + + //Let's determine the parent's offset + this.offset = this.element.offset(); + + //Initialize mouse events for interaction + this._mouseInit(); + + this._setHandleClassName(); + + //We're ready to go + this.ready = true; + + }, + + _setOption: function( key, value ) { + this._super( key, value ); + + if ( key === "handle" ) { + this._setHandleClassName(); + } + }, + + _setHandleClassName: function() { + var that = this; + this._removeClass( this.element.find( ".ui-sortable-handle" ), "ui-sortable-handle" ); + $.each( this.items, function() { + that._addClass( + this.instance.options.handle ? + this.item.find( this.instance.options.handle ) : + this.item, + "ui-sortable-handle" + ); + } ); + }, + + _destroy: function() { + this._mouseDestroy(); + + for ( var i = this.items.length - 1; i >= 0; i-- ) { + this.items[ i ].item.removeData( this.widgetName + "-item" ); + } + + return this; + }, + + _mouseCapture: function( event, overrideHandle ) { + var currentItem = null, + validHandle = false, + 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 + $( 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 ) { + $( this.options.handle, currentItem ).find( "*" ).addBack().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 i, body, + o = this.options; + + this.currentContainer = this; + + //We only need to call refreshPositions, because the refreshItems call has been moved to + // mouseCapture + this.refreshPositions(); + + //Prepare the dragged items parent + this.appendTo = $( o.appendTo !== "parent" ? + o.appendTo : + this.currentItem.parent() ); + + //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(); + + //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 + }, + + // This is a relative to absolute position minus the actual position calculation - + // only used for relative positioned helper + relative: this._getRelativeOffset() + } ); + + // After we get the helper offset, but before we get the parent 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" ); + + //Adjust the mouse offset relative to the helper if "cursorAt" is supplied + if ( 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(); + + //Get the next scrolling parent + this.scrollParent = this.placeholder.scrollParent(); + + $.extend( this.offset, { + parent: this._getParentOffset() + } ); + + //Set a containment if given in the options + if ( o.containment ) { + this._setContainment(); + } + + if ( o.cursor && o.cursor !== "auto" ) { // cursor option + body = this.document.find( "body" ); + + // Support: IE + this.storedCursor = body.css( "cursor" ); + body.css( "cursor", o.cursor ); + + this.storedStylesheet = + $( "<style>*{ cursor: " + o.cursor + " !important; }</style>" ).appendTo( body ); + } + + // We need to make sure to grab the zIndex before setting the + // opacity, because setting the opacity to anything lower than 1 + // causes the zIndex to change from "auto" to 0. + if ( o.zIndex ) { // zIndex option + if ( this.helper.css( "zIndex" ) ) { + this._storedZIndex = this.helper.css( "zIndex" ); + } + this.helper.css( "zIndex", o.zIndex ); + } + + if ( o.opacity ) { // opacity option + if ( this.helper.css( "opacity" ) ) { + this._storedOpacity = this.helper.css( "opacity" ); + } + this.helper.css( "opacity", o.opacity ); + } + + //Prepare scrolling + if ( this.scrollParent[ 0 ] !== this.document[ 0 ] && + 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 ( 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._addClass( this.helper, "ui-sortable-helper" ); + + //Move the helper, if needed + if ( !this.helper.parent().is( this.appendTo ) ) { + this.helper.detach().appendTo( this.appendTo ); + + //Update position + this.offset.parent = this._getParentOffset(); + } + + //Generate the original position + this.position = this.originalPosition = this._generatePosition( event ); + this.originalPageX = event.pageX; + this.originalPageY = event.pageY; + this.lastPositionAbs = this.positionAbs = this._convertPositionTo( "absolute" ); + + this._mouseDrag( event ); + + return true; + + }, + + _scroll: function( event ) { + var o = this.options, + scrolled = false; + + if ( this.scrollParent[ 0 ] !== this.document[ 0 ] && + 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 - this.document.scrollTop() < o.scrollSensitivity ) { + scrolled = this.document.scrollTop( this.document.scrollTop() - o.scrollSpeed ); + } else if ( this.window.height() - ( event.pageY - this.document.scrollTop() ) < + o.scrollSensitivity ) { + scrolled = this.document.scrollTop( this.document.scrollTop() + o.scrollSpeed ); + } + + if ( event.pageX - this.document.scrollLeft() < o.scrollSensitivity ) { + scrolled = this.document.scrollLeft( + this.document.scrollLeft() - o.scrollSpeed + ); + } else if ( this.window.width() - ( event.pageX - this.document.scrollLeft() ) < + o.scrollSensitivity ) { + scrolled = this.document.scrollLeft( + this.document.scrollLeft() + o.scrollSpeed + ); + } + + } + + return scrolled; + }, + + _mouseDrag: function( event ) { + var i, item, itemElement, intersection, + o = this.options; + + //Compute the helpers position + this.position = this._generatePosition( event ); + 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"; + } + + //Do scrolling + if ( o.scroll ) { + if ( this._scroll( event ) !== false ) { + + //Update item positions used in position checks + this._refreshItemPositions( true ); + + if ( $.ui.ddmanager && !o.dropBehaviour ) { + $.ui.ddmanager.prepareOffsets( this, event ); + } + } + } + + this.dragDirection = { + vertical: this._getDragVerticalDirection(), + horizontal: this._getDragHorizontalDirection() + }; + + //Rearrange + for ( i = this.items.length - 1; i >= 0; i-- ) { + + //Cache variables and intersection, continue if no intersection + item = this.items[ i ]; + itemElement = item.item[ 0 ]; + intersection = this._intersectsWithPointer( item ); + if ( !intersection ) { + continue; + } + + // Only put the placeholder inside the current Container, skip all + // items from other containers. This works because when moving + // an item from one container to another the + // currentContainer is switched before the placeholder is moved. + // + // Without this, moving items in "sub-sortables" can cause + // the placeholder to jitter between the outer and inner container. + if ( item.instance !== this.currentContainer ) { + continue; + } + + // Cannot intersect with itself + // no useless actions that have been done before + // no action if the item moved is the parent of the item checked + if ( itemElement !== this.currentItem[ 0 ] && + this.placeholder[ intersection === 1 ? + "next" : "prev" ]()[ 0 ] !== itemElement && + !$.contains( this.placeholder[ 0 ], itemElement ) && + ( this.options.type === "semi-dynamic" ? + !$.contains( this.element[ 0 ], itemElement ) : + true + ) + ) { + + 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, + cur = this.placeholder.offset(), + axis = this.options.axis, + animation = {}; + + if ( !axis || axis === "x" ) { + animation.left = cur.left - this.offset.parent.left - this.margins.left + + ( this.offsetParent[ 0 ] === this.document[ 0 ].body ? + 0 : + this.offsetParent[ 0 ].scrollLeft + ); + } + if ( !axis || axis === "y" ) { + animation.top = cur.top - this.offset.parent.top - this.margins.top + + ( this.offsetParent[ 0 ] === this.document[ 0 ].body ? + 0 : + this.offsetParent[ 0 ].scrollTop + ); + } + this.reverting = true; + $( this.helper ).animate( + animation, + parseInt( this.options.revert, 10 ) || 500, + function() { + that._clear( event ); + } + ); + } else { + this._clear( event, noPropagation ); + } + + return false; + + }, + + cancel: function() { + + if ( this.dragging ) { + + this._mouseUp( new $.Event( "mouseup", { target: null } ) ); + + if ( this.options.helper === "original" ) { + this.currentItem.css( this._storedCSS ); + this._removeClass( this.currentItem, "ui-sortable-helper" ); + } else { + this.currentItem.show(); + } + + //Post deactivating events to containers + for ( var i = this.containers.length - 1; i >= 0; i-- ) { + this.containers[ i ]._trigger( "deactivate", null, this._uiHash( this ) ); + if ( this.containers[ i ].containerCache.over ) { + this.containers[ i ]._trigger( "out", null, this._uiHash( this ) ); + this.containers[ i ].containerCache.over = 0; + } + } + + } + + if ( this.placeholder ) { + + //$(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 ), + 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 ), + 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, + l = item.left, + r = l + item.width, + t = item.top, + b = t + item.height, + dyClick = this.offset.click.top, + dxClick = this.offset.click.left, + isOverElementHeight = ( this.options.axis === "x" ) || ( ( y1 + dyClick ) > t && + ( y1 + dyClick ) < b ), + isOverElementWidth = ( this.options.axis === "y" ) || ( ( x1 + dxClick ) > l && + ( x1 + dxClick ) < r ), + isOverElement = isOverElementHeight && isOverElementWidth; + + 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 verticalDirection, horizontalDirection, + isOverElementHeight = ( this.options.axis === "x" ) || + this._isOverAxis( + this.positionAbs.top + this.offset.click.top, item.top, item.height ), + isOverElementWidth = ( this.options.axis === "y" ) || + this._isOverAxis( + this.positionAbs.left + this.offset.click.left, item.left, item.width ), + isOverElement = isOverElementHeight && isOverElementWidth; + + if ( !isOverElement ) { + return false; + } + + verticalDirection = this.dragDirection.vertical; + horizontalDirection = this.dragDirection.horizontal; + + return this.floating ? + ( ( horizontalDirection === "right" || verticalDirection === "down" ) ? 2 : 1 ) : + ( verticalDirection && ( verticalDirection === "down" ? 2 : 1 ) ); + + }, + + _intersectsWithSides: function( item ) { + + var isOverBottomHalf = this._isOverAxis( this.positionAbs.top + + this.offset.click.top, item.top + ( item.height / 2 ), item.height ), + isOverRightHalf = this._isOverAxis( this.positionAbs.left + + this.offset.click.left, item.left + ( item.width / 2 ), item.width ), + verticalDirection = this.dragDirection.vertical, + horizontalDirection = this.dragDirection.horizontal; + + 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._setHandleClassName(); + this.refreshPositions(); + return this; + }, + + _connectWith: function() { + var options = this.options; + return options.connectWith.constructor === String ? + [ options.connectWith ] : + options.connectWith; + }, + + _getItemsAsjQuery: function( connected ) { + + var i, j, cur, inst, + items = [], + queries = [], + connectWith = this._connectWith(); + + if ( connectWith && connected ) { + for ( i = connectWith.length - 1; i >= 0; i-- ) { + cur = $( connectWith[ i ], this.document[ 0 ] ); + for ( j = cur.length - 1; j >= 0; j-- ) { + inst = $.data( cur[ j ], this.widgetFullName ); + if ( inst && inst !== this && !inst.options.disabled ) { + queries.push( [ typeof inst.options.items === "function" ? + inst.options.items.call( inst.element ) : + $( inst.options.items, inst.element ) + .not( ".ui-sortable-helper" ) + .not( ".ui-sortable-placeholder" ), inst ] ); + } + } + } + } + + queries.push( [ typeof this.options.items === "function" ? + 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 ] ); + + function addItems() { + items.push( this ); + } + for ( i = queries.length - 1; i >= 0; i-- ) { + queries[ i ][ 0 ].each( addItems ); + } + + 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 i, j, cur, inst, targetData, _queries, item, queriesLength, + items = this.items, + queries = [ [ typeof this.options.items === "function" ? + this.options.items.call( this.element[ 0 ], event, { item: this.currentItem } ) : + $( this.options.items, this.element ), this ] ], + connectWith = this._connectWith(); + + //Shouldn't be run the first time through due to massive slow-down + if ( connectWith && this.ready ) { + for ( i = connectWith.length - 1; i >= 0; i-- ) { + cur = $( connectWith[ i ], this.document[ 0 ] ); + for ( j = cur.length - 1; j >= 0; j-- ) { + inst = $.data( cur[ j ], this.widgetFullName ); + if ( inst && inst !== this && !inst.options.disabled ) { + queries.push( [ typeof inst.options.items === "function" ? + inst.options.items + .call( inst.element[ 0 ], event, { item: this.currentItem } ) : + $( inst.options.items, inst.element ), inst ] ); + this.containers.push( inst ); + } + } + } + } + + for ( i = queries.length - 1; i >= 0; i-- ) { + targetData = queries[ i ][ 1 ]; + _queries = queries[ i ][ 0 ]; + + for ( j = 0, queriesLength = _queries.length; j < queriesLength; j++ ) { + item = $( _queries[ j ] ); + + // Data for target checking (mouse manager) + item.data( this.widgetName + "-item", targetData ); + + items.push( { + item: item, + instance: targetData, + width: 0, height: 0, + left: 0, top: 0 + } ); + } + } + + }, + + _refreshItemPositions: function( fast ) { + var i, item, t, p; + + for ( i = this.items.length - 1; i >= 0; i-- ) { + item = this.items[ i ]; + + //We ignore calculating positions of all connected containers when we're not over them + if ( this.currentContainer && item.instance !== this.currentContainer && + item.item[ 0 ] !== this.currentItem[ 0 ] ) { + continue; + } + + t = this.options.toleranceElement ? + $( this.options.toleranceElement, item.item ) : + item.item; + + if ( !fast ) { + item.width = t.outerWidth(); + item.height = t.outerHeight(); + } + + p = t.offset(); + item.left = p.left; + item.top = p.top; + } + }, + + refreshPositions: function( fast ) { + + // Determine whether items are being displayed horizontally + this.floating = this.items.length ? + this.options.axis === "x" || this._isFloating( this.items[ 0 ].item ) : + false; + + // 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(); + } + + this._refreshItemPositions( fast ); + + var i, p; + + if ( this.options.custom && this.options.custom.refreshContainers ) { + this.options.custom.refreshContainers.call( this ); + } else { + for ( i = this.containers.length - 1; i >= 0; i-- ) { + 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 className, nodeName, + o = that.options; + + if ( !o.placeholder || o.placeholder.constructor === String ) { + className = o.placeholder; + nodeName = that.currentItem[ 0 ].nodeName.toLowerCase(); + o.placeholder = { + element: function() { + + var element = $( "<" + nodeName + ">", that.document[ 0 ] ); + + that._addClass( element, "ui-sortable-placeholder", + className || that.currentItem[ 0 ].className ) + ._removeClass( element, "ui-sortable-helper" ); + + if ( nodeName === "tbody" ) { + that._createTrPlaceholder( + that.currentItem.find( "tr" ).eq( 0 ), + $( "<tr>", that.document[ 0 ] ).appendTo( element ) + ); + } else if ( nodeName === "tr" ) { + that._createTrPlaceholder( that.currentItem, element ); + } else if ( nodeName === "img" ) { + element.attr( "src", that.currentItem.attr( "src" ) ); + } + + if ( !className ) { + element.css( "visibility", "hidden" ); + } + + return element; + }, + 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 or width by itself (without + // styles coming from a stylesheet), it receives the inline height and width + // from the dragged item. Or, if it's a tbody or tr, it's going to have a height + // anyway since we're populating them with <td>s above, but they're unlikely to + // be the correct height on their own if the row heights are dynamic, so we'll + // always assign the height of the dragged item given forcePlaceholderSize + // is true. + if ( !p.height() || ( o.forcePlaceholderSize && + ( nodeName === "tbody" || nodeName === "tr" ) ) ) { + 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 ); + + }, + + _createTrPlaceholder: function( sourceTr, targetTr ) { + var that = this; + + sourceTr.children().each( function() { + $( "<td> </td>", that.document[ 0 ] ) + .attr( "colspan", $( this ).attr( "colspan" ) || 1 ) + .appendTo( targetTr ); + } ); + }, + + _contactContainers: function( event ) { + var i, j, dist, itemWithLeastDistance, posProperty, sizeProperty, cur, nearBottom, + floating, axis, + innermostContainer = null, + innermostIndex = null; + + // Get innermost container that intersects with item + for ( 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 && + $.contains( + this.containers[ i ].element[ 0 ], + innermostContainer.element[ 0 ] ) ) { + continue; + } + + innermostContainer = this.containers[ i ]; + innermostIndex = i; + + } else { + + // container doesn't intersect. trigger "out" event if necessary + if ( this.containers[ i ].containerCache.over ) { + this.containers[ i ]._trigger( "out", event, this._uiHash( this ) ); + this.containers[ i ].containerCache.over = 0; + } + } + + } + + // If no intersecting containers found, return + if ( !innermostContainer ) { + return; + } + + // Move the item into the container if it's not there already + if ( this.containers.length === 1 ) { + if ( !this.containers[ innermostIndex ].containerCache.over ) { + this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash( this ) ); + this.containers[ innermostIndex ].containerCache.over = 1; + } + } else { + + // When entering a new container, we will find the item with the least distance and + // append our item near it + dist = 10000; + itemWithLeastDistance = null; + floating = innermostContainer.floating || this._isFloating( this.currentItem ); + posProperty = floating ? "left" : "top"; + sizeProperty = floating ? "width" : "height"; + axis = floating ? "pageX" : "pageY"; + + for ( j = this.items.length - 1; j >= 0; j-- ) { + if ( !$.contains( + this.containers[ innermostIndex ].element[ 0 ], this.items[ j ].item[ 0 ] ) + ) { + continue; + } + if ( this.items[ j ].item[ 0 ] === this.currentItem[ 0 ] ) { + continue; + } + + cur = this.items[ j ].item.offset()[ posProperty ]; + nearBottom = false; + if ( event[ axis ] - cur > this.items[ j ][ sizeProperty ] / 2 ) { + nearBottom = true; + } + + if ( Math.abs( event[ axis ] - cur ) < dist ) { + dist = Math.abs( event[ axis ] - cur ); + itemWithLeastDistance = this.items[ j ]; + this.direction = nearBottom ? "up" : "down"; + } + } + + //Check if dropOnEmpty is enabled + if ( !itemWithLeastDistance && !this.options.dropOnEmpty ) { + return; + } + + if ( this.currentContainer === this.containers[ innermostIndex ] ) { + if ( !this.currentContainer.containerCache.over ) { + this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash() ); + this.currentContainer.containerCache.over = 1; + } + return; + } + + if ( itemWithLeastDistance ) { + this._rearrange( event, itemWithLeastDistance, null, true ); + } else { + this._rearrange( event, null, this.containers[ innermostIndex ].element, true ); + } + this._trigger( "change", event, this._uiHash() ); + this.containers[ innermostIndex ]._trigger( "change", event, this._uiHash( this ) ); + this.currentContainer = this.containers[ innermostIndex ]; + + //Update the placeholder + this.options.placeholder.update( this.currentContainer, this.placeholder ); + + //Update scrollParent + this.scrollParent = this.placeholder.scrollParent(); + + //Update overflowOffset + if ( this.scrollParent[ 0 ] !== this.document[ 0 ] && + this.scrollParent[ 0 ].tagName !== "HTML" ) { + this.overflowOffset = this.scrollParent.offset(); + } + + this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash( this ) ); + this.containers[ innermostIndex ].containerCache.over = 1; + } + + }, + + _createHelper: function( event ) { + + var o = this.options, + helper = typeof o.helper === "function" ? + $( o.helper.apply( this.element[ 0 ], [ event, this.currentItem ] ) ) : + ( o.helper === "clone" ? this.currentItem.clone() : this.currentItem ); + + //Add the helper to the DOM if that didn't happen already + if ( !helper.parents( "body" ).length ) { + this.appendTo[ 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 ( Array.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 ] !== this.document[ 0 ] && + $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) { + po.left += this.scrollParent.scrollLeft(); + po.top += this.scrollParent.scrollTop(); + } + + // This needs to be actually done for all browsers, since pageX/pageY includes this + // information with an ugly IE fix + if ( this.offsetParent[ 0 ] === this.document[ 0 ].body || + ( this.offsetParent[ 0 ].tagName && + this.offsetParent[ 0 ].tagName.toLowerCase() === "html" && $.ui.ie ) ) { + po = { top: 0, left: 0 }; + } + + return { + top: po.top + ( parseInt( this.offsetParent.css( "borderTopWidth" ), 10 ) || 0 ), + left: po.left + ( parseInt( this.offsetParent.css( "borderLeftWidth" ), 10 ) || 0 ) + }; + + }, + + _getRelativeOffset: function() { + + if ( this.cssPosition === "relative" ) { + var p = this.currentItem.position(); + return { + top: p.top - ( parseInt( this.helper.css( "top" ), 10 ) || 0 ) + + this.scrollParent.scrollTop(), + left: p.left - ( parseInt( this.helper.css( "left" ), 10 ) || 0 ) + + this.scrollParent.scrollLeft() + }; + } else { + return { top: 0, left: 0 }; + } + + }, + + _cacheMargins: function() { + this.margins = { + left: ( parseInt( this.currentItem.css( "marginLeft" ), 10 ) || 0 ), + top: ( parseInt( this.currentItem.css( "marginTop" ), 10 ) || 0 ) + }; + }, + + _cacheHelperProportions: function() { + this.helperProportions = { + width: this.helper.outerWidth(), + height: this.helper.outerHeight() + }; + }, + + _setContainment: function() { + + var ce, co, over, + o = this.options; + if ( o.containment === "parent" ) { + o.containment = this.helper[ 0 ].parentNode; + } + if ( o.containment === "document" || o.containment === "window" ) { + this.containment = [ + 0 - this.offset.relative.left - this.offset.parent.left, + 0 - this.offset.relative.top - this.offset.parent.top, + o.containment === "document" ? + this.document.width() : + this.window.width() - this.helperProportions.width - this.margins.left, + ( o.containment === "document" ? + ( this.document.height() || document.body.parentNode.scrollHeight ) : + this.window.height() || this.document[ 0 ].body.parentNode.scrollHeight + ) - this.helperProportions.height - this.margins.top + ]; + } + + if ( !( /^(document|window|parent)$/ ).test( o.containment ) ) { + ce = $( o.containment )[ 0 ]; + co = $( o.containment ).offset(); + 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, + scroll = this.cssPosition === "absolute" && + !( this.scrollParent[ 0 ] !== this.document[ 0 ] && + $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) ? + this.offsetParent : + this.scrollParent, + scrollIsRootNode = ( /(html|body)/i ).test( scroll[ 0 ].tagName ); + + return { + top: ( + + // The absolute mouse position + pos.top + + + // Only for relative positioned nodes: Relative offset from element to offset parent + this.offset.relative.top * mod + + + // The offsetParent's offset without borders (offset + border) + this.offset.parent.top * mod - + ( ( this.cssPosition === "fixed" ? + -this.scrollParent.scrollTop() : + ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod ) + ), + left: ( + + // The absolute mouse position + pos.left + + + // Only for relative positioned nodes: Relative offset from element to offset parent + this.offset.relative.left * mod + + + // The offsetParent's offset without borders (offset + border) + this.offset.parent.left * mod - + ( ( this.cssPosition === "fixed" ? + -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : + scroll.scrollLeft() ) * mod ) + ) + }; + + }, + + _generatePosition: function( event ) { + + var top, left, + o = this.options, + pageX = event.pageX, + pageY = event.pageY, + scroll = this.cssPosition === "absolute" && + !( this.scrollParent[ 0 ] !== this.document[ 0 ] && + $.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 ] !== this.document[ 0 ] && + this.scrollParent[ 0 ] !== this.offsetParent[ 0 ] ) ) { + this.offset.relative = this._getRelativeOffset(); + } + + /* + * - 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 ) { + 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; + + 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: ( + + // The absolute mouse position + pageY - + + // Click offset (relative to the element) + this.offset.click.top - + + // Only for relative positioned nodes: Relative offset from element to offset parent + this.offset.relative.top - + + // The offsetParent's offset without borders (offset + border) + this.offset.parent.top + + ( ( this.cssPosition === "fixed" ? + -this.scrollParent.scrollTop() : + ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) ) + ), + left: ( + + // The absolute mouse position + pageX - + + // Click offset (relative to the element) + this.offset.click.left - + + // Only for relative positioned nodes: Relative offset from element to offset parent + this.offset.relative.left - + + // The offsetParent's offset without borders (offset + border) + this.offset.parent.left + + ( ( this.cssPosition === "fixed" ? + -this.scrollParent.scrollLeft() : + scrollIsRootNode ? 0 : scroll.scrollLeft() ) ) + ) + }; + + }, + + _rearrange: function( event, i, a, hardRefresh ) { + + if ( a ) { + a[ 0 ].appendChild( this.placeholder[ 0 ] ); + } else { + 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 ) { + + //Precompute after each DOM insertion, NOT on mousemove + this.refreshPositions( !hardRefresh ); + } + } ); + + }, + + _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 i, + 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 ( i in this._storedCSS ) { + if ( this._storedCSS[ i ] === "auto" || this._storedCSS[ i ] === "static" ) { + this._storedCSS[ i ] = ""; + } + } + this.currentItem.css( this._storedCSS ); + this._removeClass( this.currentItem, "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 ) { + + // Trigger update callback if the DOM position has changed + delayedTriggers.push( function( event ) { + this._trigger( "update", event, this._uiHash() ); + } ); + } + + // 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 + function delayEvent( type, instance, container ) { + return function( event ) { + container._trigger( type, event, instance._uiHash( instance ) ); + }; + } + for ( i = this.containers.length - 1; i >= 0; i-- ) { + if ( !noPropagation ) { + delayedTriggers.push( delayEvent( "deactivate", this, this.containers[ i ] ) ); + } + if ( this.containers[ i ].containerCache.over ) { + delayedTriggers.push( delayEvent( "out", this, this.containers[ i ] ) ); + this.containers[ i ].containerCache.over = 0; + } + } + + //Do what was originally in plugins + if ( this.storedCursor ) { + this.document.find( "body" ).css( "cursor", this.storedCursor ); + this.storedStylesheet.remove(); + } + if ( this._storedOpacity ) { + this.helper.css( "opacity", this._storedOpacity ); + } + if ( this._storedZIndex ) { + this.helper.css( "zIndex", this._storedZIndex === "auto" ? "" : this._storedZIndex ); + } + + this.dragging = 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.cancelHelperRemoval ) { + if ( this.helper[ 0 ] !== this.currentItem[ 0 ] ) { + this.helper.remove(); + } + this.helper = null; + } + + if ( !noPropagation ) { + for ( i = 0; i < delayedTriggers.length; i++ ) { + + // Trigger all delayed events + delayedTriggers[ i ].call( this, event ); + } + this._trigger( "stop", event, this._uiHash() ); + } + + this.fromOutside = false; + return !this.cancelHelperRemoval; + + }, + + _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 + }; + } + +} ); + +} ); |