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| Current File : /home1/savoy/www/wp-includes/js/jquery/ui/sortable.js |
/*!
* jQuery UI Sortable 1.13.3
* https://jqueryui.com
*
* Copyright OpenJS Foundation and other contributors
* Released under the MIT license.
* https://jquery.org/license
*/
//>>label: Sortable
//>>group: Interactions
//>>description: Enables items in a list to be sorted using the mouse.
//>>docs: https://api.jqueryui.com/sortable/
//>>demos: https://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",
"../data",
"../ie",
"../scroll-parent",
"../version",
"../widget"
], factory );
} else {
// Browser globals
factory( jQuery );
}
} )( function( $ ) {
"use strict";
return $.widget( "ui.sortable", $.ui.mouse, {
version: "1.13.3",
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
};
}
} );
} );