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Editing: draggable.js
/*! * jQuery UI Draggable 1.14.2 * https://jqueryui.com * * Copyright OpenJS Foundation and other contributors * Released under the MIT license. * https://jquery.org/license */ //>>label: Draggable //>>group: Interactions //>>description: Enables dragging functionality for any element. //>>docs: https://api.jqueryui.com/draggable/ //>>demos: https://jqueryui.com/draggable/ //>>css.structure: ../../themes/base/draggable.css ( function( factory ) { "use strict"; if ( typeof define === "function" && define.amd ) { // AMD. Register as an anonymous module. define( [ "jquery", "./mouse", "../data", "../plugin", "../scroll-parent", "../version", "../widget" ], factory ); } else { // Browser globals factory( jQuery ); } } )( function( $ ) { "use strict"; $.widget( "ui.draggable", $.ui.mouse, { version: "1.14.2", widgetEventPrefix: "drag", options: { addClasses: true, appendTo: "parent", axis: false, connectToSortable: false, containment: false, cursor: "auto", cursorAt: false, grid: false, handle: false, helper: "original", iframeFix: false, opacity: false, refreshPositions: false, revert: false, revertDuration: 500, scope: "default", scroll: true, scrollSensitivity: 20, scrollSpeed: 20, snap: false, snapMode: "both", snapTolerance: 20, stack: false, zIndex: false, // Callbacks drag: null, start: null, stop: null }, _create: function() { if ( this.options.helper === "original" ) { this._setPositionRelative(); } if ( this.options.addClasses ) { this._addClass( "ui-draggable" ); } this._setHandleClassName(); this._mouseInit(); }, _setOption: function( key, value ) { this._super( key, value ); if ( key === "handle" ) { this._removeHandleClassName(); this._setHandleClassName(); } }, _destroy: function() { if ( ( this.helper || this.element ).is( ".ui-draggable-dragging" ) ) { this.destroyOnClear = true; return; } this._removeHandleClassName(); this._mouseDestroy(); }, _mouseCapture: function( event ) { var o = this.options; // Among others, prevent a drag on a resizable-handle if ( this.helper || o.disabled || $( event.target ).closest( ".ui-resizable-handle" ).length > 0 ) { return false; } //Quit if we're not on a valid handle this.handle = this._getHandle( event ); if ( !this.handle ) { return false; } this._blurActiveElement( event ); this._blockFrames( o.iframeFix === true ? "iframe" : o.iframeFix ); return true; }, _blockFrames: function( selector ) { this.iframeBlocks = this.document.find( selector ).map( function() { var iframe = $( this ); return $( "<div>" ) .css( "position", "absolute" ) .appendTo( iframe.parent() ) .outerWidth( iframe.outerWidth() ) .outerHeight( iframe.outerHeight() ) .offset( iframe.offset() )[ 0 ]; } ); }, _unblockFrames: function() { if ( this.iframeBlocks ) { this.iframeBlocks.remove(); delete this.iframeBlocks; } }, _blurActiveElement: function( event ) { var activeElement = this.document[ 0 ].activeElement, target = $( event.target ); // Don't blur if the event occurred on an element that is within // the currently focused element // See #10527, #12472 if ( target.closest( activeElement ).length ) { return; } // Blur any element that currently has focus, see #4261 $( activeElement ).trigger( "blur" ); }, _mouseStart: function( event ) { var o = this.options; //Create and append the visible helper this.helper = this._createHelper( event ); this._addClass( this.helper, "ui-draggable-dragging" ); //Cache the helper size this._cacheHelperProportions(); //If ddmanager is used for droppables, set the global draggable if ( $.ui.ddmanager ) { $.ui.ddmanager.current = this; } /* * - Position generation - * This block generates everything position related - it's the core of draggables. */ //Cache the margins of the original element this._cacheMargins(); //Store the helper's css position this.cssPosition = this.helper.css( "position" ); this.scrollParent = this.helper.scrollParent( true ); this.offsetParent = this.helper.offsetParent(); this.hasFixedAncestor = this.helper.parents().filter( function() { return $( this ).css( "position" ) === "fixed"; } ).length > 0; //The element's absolute position on the page minus margins this.positionAbs = this.element.offset(); this._refreshOffsets( event ); //Generate the original position this.originalPosition = this.position = this._generatePosition( event, false ); this.originalPageX = event.pageX; this.originalPageY = event.pageY; //Adjust the mouse offset relative to the helper if "cursorAt" is supplied if ( o.cursorAt ) { this._adjustOffsetFromHelper( o.cursorAt ); } //Set a containment if given in the options this._setContainment(); //Trigger event + callbacks if ( this._trigger( "start", event ) === false ) { this._clear(); return false; } //Recache the helper size this._cacheHelperProportions(); //Prepare the droppable offsets if ( $.ui.ddmanager && !o.dropBehaviour ) { $.ui.ddmanager.prepareOffsets( this, event ); } // Execute the drag once - this causes the helper not to be visible before getting its // correct position this._mouseDrag( event, true ); // If the ddmanager is used for droppables, inform the manager that dragging has started // (see #5003) if ( $.ui.ddmanager ) { $.ui.ddmanager.dragStart( this, event ); } return true; }, _refreshOffsets: function( event ) { this.offset = { top: this.positionAbs.top - this.margins.top, left: this.positionAbs.left - this.margins.left, scroll: false, parent: this._getParentOffset(), relative: this._getRelativeOffset() }; this.offset.click = { left: event.pageX - this.offset.left, top: event.pageY - this.offset.top }; }, _mouseDrag: function( event, noPropagation ) { // reset any necessary cached properties (see #5009) if ( this.hasFixedAncestor ) { this.offset.parent = this._getParentOffset(); } //Compute the helpers position this.position = this._generatePosition( event, true ); this.positionAbs = this._convertPositionTo( "absolute" ); //Call plugins and callbacks and use the resulting position if something is returned if ( !noPropagation ) { var ui = this._uiHash(); if ( this._trigger( "drag", event, ui ) === false ) { this._mouseUp( new $.Event( "mouseup", event ) ); return false; } this.position = ui.position; } this.helper[ 0 ].style.left = this.position.left + "px"; this.helper[ 0 ].style.top = this.position.top + "px"; if ( $.ui.ddmanager ) { $.ui.ddmanager.drag( this, event ); } return false; }, _mouseStop: function( event ) { //If we are using droppables, inform the manager about the drop var that = this, dropped = false; if ( $.ui.ddmanager && !this.options.dropBehaviour ) { dropped = $.ui.ddmanager.drop( this, event ); } //if a drop comes from outside (a sortable) if ( this.dropped ) { dropped = this.dropped; this.dropped = false; } if ( ( this.options.revert === "invalid" && !dropped ) || ( this.options.revert === "valid" && dropped ) || this.options.revert === true || ( typeof this.options.revert === "function" && this.options.revert.call( this.element, dropped ) ) ) { $( this.helper ).animate( this.originalPosition, parseInt( this.options.revertDuration, 10 ), function() { if ( that._trigger( "stop", event ) !== false ) { that._clear(); } } ); } else { if ( this._trigger( "stop", event ) !== false ) { this._clear(); } } return false; }, _mouseUp: function( event ) { this._unblockFrames(); // If the ddmanager is used for droppables, inform the manager that dragging has stopped // (see #5003) if ( $.ui.ddmanager ) { $.ui.ddmanager.dragStop( this, event ); } // Only need to focus if the event occurred on the draggable itself, see #10527 if ( this.handleElement.is( event.target ) ) { // The interaction is over; whether or not the click resulted in a drag, // focus the element this.element.trigger( "focus" ); } return $.ui.mouse.prototype._mouseUp.call( this, event ); }, cancel: function() { if ( this.helper.is( ".ui-draggable-dragging" ) ) { this._mouseUp( new $.Event( "mouseup", { target: this.element[ 0 ] } ) ); } else { this._clear(); } return this; }, _getHandle: function( event ) { return this.options.handle ? !!$( event.target ).closest( this.element.find( this.options.handle ) ).length : true; }, _setHandleClassName: function() { this.handleElement = this.options.handle ? this.element.find( this.options.handle ) : this.element; this._addClass( this.handleElement, "ui-draggable-handle" ); }, _removeHandleClassName: function() { this._removeClass( this.handleElement, "ui-draggable-handle" ); }, _createHelper: function( event ) { var o = this.options, helperIsFunction = typeof o.helper === "function", helper = helperIsFunction ? $( o.helper.apply( this.element[ 0 ], [ event ] ) ) : ( o.helper === "clone" ? this.element.clone().removeAttr( "id" ) : this.element ); if ( !helper.parents( "body" ).length ) { helper.appendTo( ( o.appendTo === "parent" ? this.element[ 0 ].parentNode : o.appendTo ) ); } // https://bugs.jqueryui.com/ticket/9446 // a helper function can return the original element // which wouldn't have been set to relative in _create if ( helperIsFunction && helper[ 0 ] === this.element[ 0 ] ) { this._setPositionRelative(); } if ( helper[ 0 ] !== this.element[ 0 ] && !( /(fixed|absolute)/ ).test( helper.css( "position" ) ) ) { helper.css( "position", "absolute" ); } return helper; }, _setPositionRelative: function() { if ( !( /^(?:r|a|f)/ ).test( this.element.css( "position" ) ) ) { this.element[ 0 ].style.position = "relative"; } }, _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; } }, _isRootNode: function( element ) { return ( /(html|body)/i ).test( element.tagName ) || element === this.document[ 0 ]; }, _getParentOffset: function() { //Get the offsetParent and cache its position var po = this.offsetParent.offset(), document = this.document[ 0 ]; // 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._isRootNode( this.offsetParent[ 0 ] ) ) { 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" ) { return { top: 0, left: 0 }; } var p = this.element.position(), scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] ); return { top: p.top - ( parseInt( this.helper.css( "top" ), 10 ) || 0 ) + ( !scrollIsRootNode ? this.scrollParent.scrollTop() : 0 ), left: p.left - ( parseInt( this.helper.css( "left" ), 10 ) || 0 ) + ( !scrollIsRootNode ? this.scrollParent.scrollLeft() : 0 ) }; }, _cacheMargins: function() { this.margins = { left: ( parseInt( this.element.css( "marginLeft" ), 10 ) || 0 ), top: ( parseInt( this.element.css( "marginTop" ), 10 ) || 0 ), right: ( parseInt( this.element.css( "marginRight" ), 10 ) || 0 ), bottom: ( parseInt( this.element.css( "marginBottom" ), 10 ) || 0 ) }; }, _cacheHelperProportions: function() { this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() }; }, _setContainment: function() { var isUserScrollable, c, ce, o = this.options, document = this.document[ 0 ]; this.relativeContainer = null; if ( !o.containment ) { this.containment = null; return; } if ( o.containment === "window" ) { this.containment = [ $( window ).scrollLeft() - this.offset.relative.left - this.offset.parent.left, $( window ).scrollTop() - this.offset.relative.top - this.offset.parent.top, $( window ).scrollLeft() + $( window ).width() - this.helperProportions.width - this.margins.left, $( window ).scrollTop() + ( $( window ).height() || document.body.parentNode.scrollHeight ) - this.helperProportions.height - this.margins.top ]; return; } if ( o.containment === "document" ) { this.containment = [ 0, 0, $( document ).width() - this.helperProportions.width - this.margins.left, ( $( document ).height() || document.body.parentNode.scrollHeight ) - this.helperProportions.height - this.margins.top ]; return; } if ( o.containment.constructor === Array ) { this.containment = o.containment; return; } if ( o.containment === "parent" ) { o.containment = this.helper[ 0 ].parentNode; } c = $( o.containment ); ce = c[ 0 ]; if ( !ce ) { return; } isUserScrollable = /(scroll|auto)/.test( c.css( "overflow" ) ); this.containment = [ ( parseInt( c.css( "borderLeftWidth" ), 10 ) || 0 ) + ( parseInt( c.css( "paddingLeft" ), 10 ) || 0 ), ( parseInt( c.css( "borderTopWidth" ), 10 ) || 0 ) + ( parseInt( c.css( "paddingTop" ), 10 ) || 0 ), ( isUserScrollable ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) - ( parseInt( c.css( "borderRightWidth" ), 10 ) || 0 ) - ( parseInt( c.css( "paddingRight" ), 10 ) || 0 ) - this.helperProportions.width - this.margins.left - this.margins.right, ( isUserScrollable ? Math.max( ce.scrollHeight, ce.offsetHeight ) : ce.offsetHeight ) - ( parseInt( c.css( "borderBottomWidth" ), 10 ) || 0 ) - ( parseInt( c.css( "paddingBottom" ), 10 ) || 0 ) - this.helperProportions.height - this.margins.top - this.margins.bottom ]; this.relativeContainer = c; }, _convertPositionTo: function( d, pos ) { if ( !pos ) { pos = this.position; } var mod = d === "absolute" ? 1 : -1, scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] ); 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.offset.scroll.top : ( scrollIsRootNode ? 0 : this.offset.scroll.top ) ) * 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.offset.scroll.left : ( scrollIsRootNode ? 0 : this.offset.scroll.left ) ) * mod ) ) }; }, _generatePosition: function( event, constrainPosition ) { var containment, co, top, left, o = this.options, scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] ), pageX = event.pageX, pageY = event.pageY; // Cache the scroll if ( !scrollIsRootNode || !this.offset.scroll ) { this.offset.scroll = { top: this.scrollParent.scrollTop(), left: this.scrollParent.scrollLeft() }; } /* * - Position constraining - * Constrain the position to a mix of grid, containment. */ // If we are not dragging yet, we won't check for options if ( constrainPosition ) { if ( this.containment ) { if ( this.relativeContainer ) { co = this.relativeContainer.offset(); containment = [ this.containment[ 0 ] + co.left, this.containment[ 1 ] + co.top, this.containment[ 2 ] + co.left, this.containment[ 3 ] + co.top ]; } else { containment = this.containment; } if ( event.pageX - this.offset.click.left < containment[ 0 ] ) { pageX = containment[ 0 ] + this.offset.click.left; } if ( event.pageY - this.offset.click.top < containment[ 1 ] ) { pageY = containment[ 1 ] + this.offset.click.top; } if ( event.pageX - this.offset.click.left > containment[ 2 ] ) { pageX = containment[ 2 ] + this.offset.click.left; } if ( event.pageY - this.offset.click.top > containment[ 3 ] ) { pageY = containment[ 3 ] + this.offset.click.top; } } if ( o.grid ) { //Check for grid elements set to 0 to prevent divide by 0 error causing invalid // argument errors in IE (see ticket #6950) top = o.grid[ 1 ] ? this.originalPageY + Math.round( ( pageY - this.originalPageY ) / o.grid[ 1 ] ) * o.grid[ 1 ] : this.originalPageY; pageY = containment ? ( ( top - this.offset.click.top >= containment[ 1 ] || top - this.offset.click.top > containment[ 3 ] ) ? top : ( ( top - this.offset.click.top >= containment[ 1 ] ) ? top - o.grid[ 1 ] : top + o.grid[ 1 ] ) ) : top; left = o.grid[ 0 ] ? this.originalPageX + Math.round( ( pageX - this.originalPageX ) / o.grid[ 0 ] ) * o.grid[ 0 ] : this.originalPageX; pageX = containment ? ( ( left - this.offset.click.left >= containment[ 0 ] || left - this.offset.click.left > containment[ 2 ] ) ? left : ( ( left - this.offset.click.left >= containment[ 0 ] ) ? left - o.grid[ 0 ] : left + o.grid[ 0 ] ) ) : left; } if ( o.axis === "y" ) { pageX = this.originalPageX; } if ( o.axis === "x" ) { pageY = this.originalPageY; } } 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.offset.scroll.top : ( scrollIsRootNode ? 0 : this.offset.scroll.top ) ) ), 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.offset.scroll.left : ( scrollIsRootNode ? 0 : this.offset.scroll.left ) ) ) }; }, _clear: function() { this._removeClass( this.helper, "ui-draggable-dragging" ); if ( this.helper[ 0 ] !== this.element[ 0 ] && !this.cancelHelperRemoval ) { this.helper.remove(); } this.helper = null; this.cancelHelperRemoval = false; if ( this.destroyOnClear ) { this.destroy(); } }, // From now on bulk stuff - mainly helpers _trigger: function( type, event, ui ) { ui = ui || this._uiHash(); $.ui.plugin.call( this, type, [ event, ui, this ], true ); // Absolute position and offset (see #6884 ) have to be recalculated after plugins if ( /^(drag|start|stop)/.test( type ) ) { this.positionAbs = this._convertPositionTo( "absolute" ); ui.offset = this.positionAbs; } return $.Widget.prototype._trigger.call( this, type, event, ui ); }, plugins: {}, _uiHash: function() { return { helper: this.helper, position: this.position, originalPosition: this.originalPosition, offset: this.positionAbs }; } } ); $.ui.plugin.add( "draggable", "connectToSortable", { start: function( event, ui, draggable ) { var uiSortable = $.extend( {}, ui, { item: draggable.element } ); draggable.sortables = []; $( draggable.options.connectToSortable ).each( function() { var sortable = $( this ).sortable( "instance" ); if ( sortable && !sortable.options.disabled ) { draggable.sortables.push( sortable ); // RefreshPositions is called at drag start to refresh the containerCache // which is used in drag. This ensures it's initialized and synchronized // with any changes that might have happened on the page since initialization. sortable.refreshPositions(); sortable._trigger( "activate", event, uiSortable ); } } ); }, stop: function( event, ui, draggable ) { var uiSortable = $.extend( {}, ui, { item: draggable.element } ); draggable.cancelHelperRemoval = false; $.each( draggable.sortables, function() { var sortable = this; if ( sortable.isOver ) { sortable.isOver = 0; // Allow this sortable to handle removing the helper draggable.cancelHelperRemoval = true; sortable.cancelHelperRemoval = false; // Use _storedCSS To restore properties in the sortable, // as this also handles revert (#9675) since the draggable // may have modified them in unexpected ways (#8809) sortable._storedCSS = { position: sortable.placeholder.css( "position" ), top: sortable.placeholder.css( "top" ), left: sortable.placeholder.css( "left" ) }; sortable._mouseStop( event ); // Once drag has ended, the sortable should return to using // its original helper, not the shared helper from draggable sortable.options.helper = sortable.options._helper; } else { // Prevent this Sortable from removing the helper. // However, don't set the draggable to remove the helper // either as another connected Sortable may yet handle the removal. sortable.cancelHelperRemoval = true; sortable._trigger( "deactivate", event, uiSortable ); } } ); }, drag: function( event, ui, draggable ) { $.each( draggable.sortables, function() { var innermostIntersecting = false, sortable = this; // Copy over variables that sortable's _intersectsWith uses sortable.positionAbs = draggable.positionAbs; sortable.helperProportions = draggable.helperProportions; sortable.offset.click = draggable.offset.click; if ( sortable._intersectsWith( sortable.containerCache ) ) { innermostIntersecting = true; $.each( draggable.sortables, function() { // Copy over variables that sortable's _intersectsWith uses this.positionAbs = draggable.positionAbs; this.helperProportions = draggable.helperProportions; this.offset.click = draggable.offset.click; if ( this !== sortable && this._intersectsWith( this.containerCache ) && $.contains( sortable.element[ 0 ], this.element[ 0 ] ) ) { innermostIntersecting = false; } return innermostIntersecting; } ); } if ( innermostIntersecting ) { // If it intersects, we use a little isOver variable and set it once, // so that the move-in stuff gets fired only once. if ( !sortable.isOver ) { sortable.isOver = 1; // Store draggable's parent in case we need to reappend to it later. draggable._parent = ui.helper.parent(); sortable.currentItem = ui.helper .appendTo( sortable.element ) .data( "ui-sortable-item", true ); // Store helper option to later restore it sortable.options._helper = sortable.options.helper; sortable.options.helper = function() { return ui.helper[ 0 ]; }; // Fire the start events of the sortable with our passed browser event, // and our own helper (so it doesn't create a new one) event.target = sortable.currentItem[ 0 ]; sortable._mouseCapture( event, true ); sortable._mouseStart( event, true, true ); // Because the browser event is way off the new appended portlet, // modify necessary variables to reflect the changes sortable.offset.click.top = draggable.offset.click.top; sortable.offset.click.left = draggable.offset.click.left; sortable.offset.parent.left -= draggable.offset.parent.left - sortable.offset.parent.left; sortable.offset.parent.top -= draggable.offset.parent.top - sortable.offset.parent.top; draggable._trigger( "toSortable", event ); // Inform draggable that the helper is in a valid drop zone, // used solely in the revert option to handle "valid/invalid". draggable.dropped = sortable.element; // Need to refreshPositions of all sortables in the case that // adding to one sortable changes the location of the other sortables (#9675) $.each( draggable.sortables, function() { this.refreshPositions(); } ); // Hack so receive/update callbacks work (mostly) draggable.currentItem = draggable.element; sortable.fromOutside = draggable; } if ( sortable.currentItem ) { sortable._mouseDrag( event ); // Copy the sortable's position because the draggable's can potentially reflect // a relative position, while sortable is always absolute, which the dragged // element has now become. (#8809) ui.position = sortable.position; } } else { // If it doesn't intersect with the sortable, and it intersected before, // we fake the drag stop of the sortable, but make sure it doesn't remove // the helper by using cancelHelperRemoval. if ( sortable.isOver ) { sortable.isOver = 0; sortable.cancelHelperRemoval = true; // Calling sortable's mouseStop would trigger a revert, // so revert must be temporarily false until after mouseStop is called. sortable.options._revert = sortable.options.revert; sortable.options.revert = false; sortable._trigger( "out", event, sortable._uiHash( sortable ) ); sortable._mouseStop( event, true ); // Restore sortable behaviors that were modfied // when the draggable entered the sortable area (#9481) sortable.options.revert = sortable.options._revert; sortable.options.helper = sortable.options._helper; if ( sortable.placeholder ) { sortable.placeholder.remove(); } // Restore and recalculate the draggable's offset considering the sortable // may have modified them in unexpected ways. (#8809, #10669) ui.helper.appendTo( draggable._parent ); draggable._refreshOffsets( event ); ui.position = draggable._generatePosition( event, true ); draggable._trigger( "fromSortable", event ); // Inform draggable that the helper is no longer in a valid drop zone draggable.dropped = false; // Need to refreshPositions of all sortables just in case removing // from one sortable changes the location of other sortables (#9675) $.each( draggable.sortables, function() { this.refreshPositions(); } ); } } } ); } } ); $.ui.plugin.add( "draggable", "cursor", { start: function( event, ui, instance ) { var t = $( "body" ), o = instance.options; if ( t.css( "cursor" ) ) { o._cursor = t.css( "cursor" ); } t.css( "cursor", o.cursor ); }, stop: function( event, ui, instance ) { var o = instance.options; if ( o._cursor ) { $( "body" ).css( "cursor", o._cursor ); } } } ); $.ui.plugin.add( "draggable", "opacity", { start: function( event, ui, instance ) { var t = $( ui.helper ), o = instance.options; if ( t.css( "opacity" ) ) { o._opacity = t.css( "opacity" ); } t.css( "opacity", o.opacity ); }, stop: function( event, ui, instance ) { var o = instance.options; if ( o._opacity ) { $( ui.helper ).css( "opacity", o._opacity ); } } } ); $.ui.plugin.add( "draggable", "scroll", { start: function( event, ui, i ) { if ( !i.scrollParentNotHidden ) { i.scrollParentNotHidden = i.helper.scrollParent( false ); } if ( i.scrollParentNotHidden[ 0 ] !== i.document[ 0 ] && i.scrollParentNotHidden[ 0 ].tagName !== "HTML" ) { i.overflowOffset = i.scrollParentNotHidden.offset(); } }, drag: function( event, ui, i ) { var o = i.options, scrolled = false, scrollParent = i.scrollParentNotHidden[ 0 ], document = i.document[ 0 ]; if ( scrollParent !== document && scrollParent.tagName !== "HTML" ) { if ( !o.axis || o.axis !== "x" ) { if ( ( i.overflowOffset.top + scrollParent.offsetHeight ) - event.pageY < o.scrollSensitivity ) { scrollParent.scrollTop = scrolled = scrollParent.scrollTop + o.scrollSpeed; } else if ( event.pageY - i.overflowOffset.top < o.scrollSensitivity ) { scrollParent.scrollTop = scrolled = scrollParent.scrollTop - o.scrollSpeed; } } if ( !o.axis || o.axis !== "y" ) { if ( ( i.overflowOffset.left + scrollParent.offsetWidth ) - event.pageX < o.scrollSensitivity ) { scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft + o.scrollSpeed; } else if ( event.pageX - i.overflowOffset.left < o.scrollSensitivity ) { scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft - o.scrollSpeed; } } } else { if ( !o.axis || o.axis !== "x" ) { 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 ( !o.axis || o.axis !== "y" ) { 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( i, event ); } } } ); $.ui.plugin.add( "draggable", "snap", { start: function( event, ui, i ) { var o = i.options; i.snapElements = []; $( o.snap.constructor !== String ? ( o.snap.items || ":data(ui-draggable)" ) : o.snap ) .each( function() { var $t = $( this ), $o = $t.offset(); if ( this !== i.element[ 0 ] ) { i.snapElements.push( { item: this, width: $t.outerWidth(), height: $t.outerHeight(), top: $o.top, left: $o.left } ); } } ); }, drag: function( event, ui, inst ) { var ts, bs, ls, rs, l, r, t, b, i, first, o = inst.options, d = o.snapTolerance, x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width, y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height; for ( i = inst.snapElements.length - 1; i >= 0; i-- ) { l = inst.snapElements[ i ].left - inst.margins.left; r = l + inst.snapElements[ i ].width; t = inst.snapElements[ i ].top - inst.margins.top; b = t + inst.snapElements[ i ].height; if ( x2 < l - d || x1 > r + d || y2 < t - d || y1 > b + d || !$.contains( inst.snapElements[ i ].item.ownerDocument, inst.snapElements[ i ].item ) ) { if ( inst.snapElements[ i ].snapping ) { if ( inst.options.snap.release ) { inst.options.snap.release.call( inst.element, event, $.extend( inst._uiHash(), { snapItem: inst.snapElements[ i ].item } ) ); } } inst.snapElements[ i ].snapping = false; continue; } if ( o.snapMode !== "inner" ) { ts = Math.abs( t - y2 ) <= d; bs = Math.abs( b - y1 ) <= d; ls = Math.abs( l - x2 ) <= d; rs = Math.abs( r - x1 ) <= d; if ( ts ) { ui.position.top = inst._convertPositionTo( "relative", { top: t - inst.helperProportions.height, left: 0 } ).top; } if ( bs ) { ui.position.top = inst._convertPositionTo( "relative", { top: b, left: 0 } ).top; } if ( ls ) { ui.position.left = inst._convertPositionTo( "relative", { top: 0, left: l - inst.helperProportions.width } ).left; } if ( rs ) { ui.position.left = inst._convertPositionTo( "relative", { top: 0, left: r } ).left; } } first = ( ts || bs || ls || rs ); if ( o.snapMode !== "outer" ) { ts = Math.abs( t - y1 ) <= d; bs = Math.abs( b - y2 ) <= d; ls = Math.abs( l - x1 ) <= d; rs = Math.abs( r - x2 ) <= d; if ( ts ) { ui.position.top = inst._convertPositionTo( "relative", { top: t, left: 0 } ).top; } if ( bs ) { ui.position.top = inst._convertPositionTo( "relative", { top: b - inst.helperProportions.height, left: 0 } ).top; } if ( ls ) { ui.position.left = inst._convertPositionTo( "relative", { top: 0, left: l } ).left; } if ( rs ) { ui.position.left = inst._convertPositionTo( "relative", { top: 0, left: r - inst.helperProportions.width } ).left; } } if ( !inst.snapElements[ i ].snapping && ( ts || bs || ls || rs || first ) ) { if ( inst.options.snap.snap ) { inst.options.snap.snap.call( inst.element, event, $.extend( inst._uiHash(), { snapItem: inst.snapElements[ i ].item } ) ); } } inst.snapElements[ i ].snapping = ( ts || bs || ls || rs || first ); } } } ); $.ui.plugin.add( "draggable", "stack", { start: function( event, ui, instance ) { var min, o = instance.options, group = $.makeArray( $( o.stack ) ).sort( function( a, b ) { return ( parseInt( $( a ).css( "zIndex" ), 10 ) || 0 ) - ( parseInt( $( b ).css( "zIndex" ), 10 ) || 0 ); } ); if ( !group.length ) { return; } min = parseInt( $( group[ 0 ] ).css( "zIndex" ), 10 ) || 0; $( group ).each( function( i ) { $( this ).css( "zIndex", min + i ); } ); this.css( "zIndex", ( min + group.length ) ); } } ); $.ui.plugin.add( "draggable", "zIndex", { start: function( event, ui, instance ) { var t = $( ui.helper ), o = instance.options; if ( t.css( "zIndex" ) ) { o._zIndex = t.css( "zIndex" ); } t.css( "zIndex", o.zIndex ); }, stop: function( event, ui, instance ) { var o = instance.options; if ( o._zIndex ) { $( ui.helper ).css( "zIndex", o._zIndex ); } } } ); return $.ui.draggable; } );
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