sortable.js (46033B)
1 /*! 2 * jQuery UI Sortable 1.12.1 3 * http://jqueryui.com 4 * 5 * Copyright jQuery Foundation and other contributors 6 * Released under the MIT license. 7 * http://jquery.org/license 8 */ 9 10 //>>label: Sortable 11 //>>group: Interactions 12 //>>description: Enables items in a list to be sorted using the mouse. 13 //>>docs: http://api.jqueryui.com/sortable/ 14 //>>demos: http://jqueryui.com/sortable/ 15 //>>css.structure: ../../themes/base/sortable.css 16 17 ( function( factory ) { 18 if ( typeof define === "function" && define.amd ) { 19 20 // AMD. Register as an anonymous module. 21 define( [ 22 "jquery", 23 "./mouse", 24 "./core" 25 ], factory ); 26 } else { 27 28 // Browser globals 29 factory( jQuery ); 30 } 31 }( function( $ ) { 32 33 return $.widget( "ui.sortable", $.ui.mouse, { 34 version: "1.12.1", 35 widgetEventPrefix: "sort", 36 ready: false, 37 options: { 38 appendTo: "parent", 39 axis: false, 40 connectWith: false, 41 containment: false, 42 cursor: "auto", 43 cursorAt: false, 44 dropOnEmpty: true, 45 forcePlaceholderSize: false, 46 forceHelperSize: false, 47 grid: false, 48 handle: false, 49 helper: "original", 50 items: "> *", 51 opacity: false, 52 placeholder: false, 53 revert: false, 54 scroll: true, 55 scrollSensitivity: 20, 56 scrollSpeed: 20, 57 scope: "default", 58 tolerance: "intersect", 59 zIndex: 1000, 60 61 // Callbacks 62 activate: null, 63 beforeStop: null, 64 change: null, 65 deactivate: null, 66 out: null, 67 over: null, 68 receive: null, 69 remove: null, 70 sort: null, 71 start: null, 72 stop: null, 73 update: null 74 }, 75 76 _isOverAxis: function( x, reference, size ) { 77 return ( x >= reference ) && ( x < ( reference + size ) ); 78 }, 79 80 _isFloating: function( item ) { 81 return ( /left|right/ ).test( item.css( "float" ) ) || 82 ( /inline|table-cell/ ).test( item.css( "display" ) ); 83 }, 84 85 _create: function() { 86 this.containerCache = {}; 87 this._addClass( "ui-sortable" ); 88 89 //Get the items 90 this.refresh(); 91 92 //Let's determine the parent's offset 93 this.offset = this.element.offset(); 94 95 //Initialize mouse events for interaction 96 this._mouseInit(); 97 98 this._setHandleClassName(); 99 100 //We're ready to go 101 this.ready = true; 102 103 }, 104 105 _setOption: function( key, value ) { 106 this._super( key, value ); 107 108 if ( key === "handle" ) { 109 this._setHandleClassName(); 110 } 111 }, 112 113 _setHandleClassName: function() { 114 var that = this; 115 this._removeClass( this.element.find( ".ui-sortable-handle" ), "ui-sortable-handle" ); 116 $.each( this.items, function() { 117 that._addClass( 118 this.instance.options.handle ? 119 this.item.find( this.instance.options.handle ) : 120 this.item, 121 "ui-sortable-handle" 122 ); 123 } ); 124 }, 125 126 _destroy: function() { 127 this._mouseDestroy(); 128 129 for ( var i = this.items.length - 1; i >= 0; i-- ) { 130 this.items[ i ].item.removeData( this.widgetName + "-item" ); 131 } 132 133 return this; 134 }, 135 136 _mouseCapture: function( event, overrideHandle ) { 137 var currentItem = null, 138 validHandle = false, 139 that = this; 140 141 if ( this.reverting ) { 142 return false; 143 } 144 145 if ( this.options.disabled || this.options.type === "static" ) { 146 return false; 147 } 148 149 //We have to refresh the items data once first 150 this._refreshItems( event ); 151 152 //Find out if the clicked node (or one of its parents) is a actual item in this.items 153 $( event.target ).parents().each( function() { 154 if ( $.data( this, that.widgetName + "-item" ) === that ) { 155 currentItem = $( this ); 156 return false; 157 } 158 } ); 159 if ( $.data( event.target, that.widgetName + "-item" ) === that ) { 160 currentItem = $( event.target ); 161 } 162 163 if ( !currentItem ) { 164 return false; 165 } 166 if ( this.options.handle && !overrideHandle ) { 167 $( this.options.handle, currentItem ).find( "*" ).addBack().each( function() { 168 if ( this === event.target ) { 169 validHandle = true; 170 } 171 } ); 172 if ( !validHandle ) { 173 return false; 174 } 175 } 176 177 this.currentItem = currentItem; 178 this._removeCurrentsFromItems(); 179 return true; 180 181 }, 182 183 _mouseStart: function( event, overrideHandle, noActivation ) { 184 185 var i, body, 186 o = this.options; 187 188 this.currentContainer = this; 189 190 //We only need to call refreshPositions, because the refreshItems call has been moved to 191 // mouseCapture 192 this.refreshPositions(); 193 194 //Create and append the visible helper 195 this.helper = this._createHelper( event ); 196 197 //Cache the helper size 198 this._cacheHelperProportions(); 199 200 /* 201 * - Position generation - 202 * This block generates everything position related - it's the core of draggables. 203 */ 204 205 //Cache the margins of the original element 206 this._cacheMargins(); 207 208 //Get the next scrolling parent 209 this.scrollParent = this.helper.scrollParent(); 210 211 //The element's absolute position on the page minus margins 212 this.offset = this.currentItem.offset(); 213 this.offset = { 214 top: this.offset.top - this.margins.top, 215 left: this.offset.left - this.margins.left 216 }; 217 218 $.extend( this.offset, { 219 click: { //Where the click happened, relative to the element 220 left: event.pageX - this.offset.left, 221 top: event.pageY - this.offset.top 222 }, 223 parent: this._getParentOffset(), 224 225 // This is a relative to absolute position minus the actual position calculation - 226 // only used for relative positioned helper 227 relative: this._getRelativeOffset() 228 } ); 229 230 // Only after we got the offset, we can change the helper's position to absolute 231 // TODO: Still need to figure out a way to make relative sorting possible 232 this.helper.css( "position", "absolute" ); 233 this.cssPosition = this.helper.css( "position" ); 234 235 //Generate the original position 236 this.originalPosition = this._generatePosition( event ); 237 this.originalPageX = event.pageX; 238 this.originalPageY = event.pageY; 239 240 //Adjust the mouse offset relative to the helper if "cursorAt" is supplied 241 ( o.cursorAt && this._adjustOffsetFromHelper( o.cursorAt ) ); 242 243 //Cache the former DOM position 244 this.domPosition = { 245 prev: this.currentItem.prev()[ 0 ], 246 parent: this.currentItem.parent()[ 0 ] 247 }; 248 249 // If the helper is not the original, hide the original so it's not playing any role during 250 // the drag, won't cause anything bad this way 251 if ( this.helper[ 0 ] !== this.currentItem[ 0 ] ) { 252 this.currentItem.hide(); 253 } 254 255 //Create the placeholder 256 this._createPlaceholder(); 257 258 //Set a containment if given in the options 259 if ( o.containment ) { 260 this._setContainment(); 261 } 262 263 if ( o.cursor && o.cursor !== "auto" ) { // cursor option 264 body = this.document.find( "body" ); 265 266 // Support: IE 267 this.storedCursor = body.css( "cursor" ); 268 body.css( "cursor", o.cursor ); 269 270 this.storedStylesheet = 271 $( "<style>*{ cursor: " + o.cursor + " !important; }</style>" ).appendTo( body ); 272 } 273 274 if ( o.opacity ) { // opacity option 275 if ( this.helper.css( "opacity" ) ) { 276 this._storedOpacity = this.helper.css( "opacity" ); 277 } 278 this.helper.css( "opacity", o.opacity ); 279 } 280 281 if ( o.zIndex ) { // zIndex option 282 if ( this.helper.css( "zIndex" ) ) { 283 this._storedZIndex = this.helper.css( "zIndex" ); 284 } 285 this.helper.css( "zIndex", o.zIndex ); 286 } 287 288 //Prepare scrolling 289 if ( this.scrollParent[ 0 ] !== this.document[ 0 ] && 290 this.scrollParent[ 0 ].tagName !== "HTML" ) { 291 this.overflowOffset = this.scrollParent.offset(); 292 } 293 294 //Call callbacks 295 this._trigger( "start", event, this._uiHash() ); 296 297 //Recache the helper size 298 if ( !this._preserveHelperProportions ) { 299 this._cacheHelperProportions(); 300 } 301 302 //Post "activate" events to possible containers 303 if ( !noActivation ) { 304 for ( i = this.containers.length - 1; i >= 0; i-- ) { 305 this.containers[ i ]._trigger( "activate", event, this._uiHash( this ) ); 306 } 307 } 308 309 //Prepare possible droppables 310 if ( $.ui.ddmanager ) { 311 $.ui.ddmanager.current = this; 312 } 313 314 if ( $.ui.ddmanager && !o.dropBehaviour ) { 315 $.ui.ddmanager.prepareOffsets( this, event ); 316 } 317 318 this.dragging = true; 319 320 this._addClass( this.helper, "ui-sortable-helper" ); 321 322 // Execute the drag once - this causes the helper not to be visiblebefore getting its 323 // correct position 324 this._mouseDrag( event ); 325 return true; 326 327 }, 328 329 _mouseDrag: function( event ) { 330 var i, item, itemElement, intersection, 331 o = this.options, 332 scrolled = false; 333 334 //Compute the helpers position 335 this.position = this._generatePosition( event ); 336 this.positionAbs = this._convertPositionTo( "absolute" ); 337 338 if ( !this.lastPositionAbs ) { 339 this.lastPositionAbs = this.positionAbs; 340 } 341 342 //Do scrolling 343 if ( this.options.scroll ) { 344 if ( this.scrollParent[ 0 ] !== this.document[ 0 ] && 345 this.scrollParent[ 0 ].tagName !== "HTML" ) { 346 347 if ( ( this.overflowOffset.top + this.scrollParent[ 0 ].offsetHeight ) - 348 event.pageY < o.scrollSensitivity ) { 349 this.scrollParent[ 0 ].scrollTop = 350 scrolled = this.scrollParent[ 0 ].scrollTop + o.scrollSpeed; 351 } else if ( event.pageY - this.overflowOffset.top < o.scrollSensitivity ) { 352 this.scrollParent[ 0 ].scrollTop = 353 scrolled = this.scrollParent[ 0 ].scrollTop - o.scrollSpeed; 354 } 355 356 if ( ( this.overflowOffset.left + this.scrollParent[ 0 ].offsetWidth ) - 357 event.pageX < o.scrollSensitivity ) { 358 this.scrollParent[ 0 ].scrollLeft = scrolled = 359 this.scrollParent[ 0 ].scrollLeft + o.scrollSpeed; 360 } else if ( event.pageX - this.overflowOffset.left < o.scrollSensitivity ) { 361 this.scrollParent[ 0 ].scrollLeft = scrolled = 362 this.scrollParent[ 0 ].scrollLeft - o.scrollSpeed; 363 } 364 365 } else { 366 367 if ( event.pageY - this.document.scrollTop() < o.scrollSensitivity ) { 368 scrolled = this.document.scrollTop( this.document.scrollTop() - o.scrollSpeed ); 369 } else if ( this.window.height() - ( event.pageY - this.document.scrollTop() ) < 370 o.scrollSensitivity ) { 371 scrolled = this.document.scrollTop( this.document.scrollTop() + o.scrollSpeed ); 372 } 373 374 if ( event.pageX - this.document.scrollLeft() < o.scrollSensitivity ) { 375 scrolled = this.document.scrollLeft( 376 this.document.scrollLeft() - o.scrollSpeed 377 ); 378 } else if ( this.window.width() - ( event.pageX - this.document.scrollLeft() ) < 379 o.scrollSensitivity ) { 380 scrolled = this.document.scrollLeft( 381 this.document.scrollLeft() + o.scrollSpeed 382 ); 383 } 384 385 } 386 387 if ( scrolled !== false && $.ui.ddmanager && !o.dropBehaviour ) { 388 $.ui.ddmanager.prepareOffsets( this, event ); 389 } 390 } 391 392 //Regenerate the absolute position used for position checks 393 this.positionAbs = this._convertPositionTo( "absolute" ); 394 395 //Set the helper position 396 if ( !this.options.axis || this.options.axis !== "y" ) { 397 this.helper[ 0 ].style.left = this.position.left + "px"; 398 } 399 if ( !this.options.axis || this.options.axis !== "x" ) { 400 this.helper[ 0 ].style.top = this.position.top + "px"; 401 } 402 403 //Rearrange 404 for ( i = this.items.length - 1; i >= 0; i-- ) { 405 406 //Cache variables and intersection, continue if no intersection 407 item = this.items[ i ]; 408 itemElement = item.item[ 0 ]; 409 intersection = this._intersectsWithPointer( item ); 410 if ( !intersection ) { 411 continue; 412 } 413 414 // Only put the placeholder inside the current Container, skip all 415 // items from other containers. This works because when moving 416 // an item from one container to another the 417 // currentContainer is switched before the placeholder is moved. 418 // 419 // Without this, moving items in "sub-sortables" can cause 420 // the placeholder to jitter between the outer and inner container. 421 if ( item.instance !== this.currentContainer ) { 422 continue; 423 } 424 425 // Cannot intersect with itself 426 // no useless actions that have been done before 427 // no action if the item moved is the parent of the item checked 428 if ( itemElement !== this.currentItem[ 0 ] && 429 this.placeholder[ intersection === 1 ? "next" : "prev" ]()[ 0 ] !== itemElement && 430 !$.contains( this.placeholder[ 0 ], itemElement ) && 431 ( this.options.type === "semi-dynamic" ? 432 !$.contains( this.element[ 0 ], itemElement ) : 433 true 434 ) 435 ) { 436 437 this.direction = intersection === 1 ? "down" : "up"; 438 439 if ( this.options.tolerance === "pointer" || this._intersectsWithSides( item ) ) { 440 this._rearrange( event, item ); 441 } else { 442 break; 443 } 444 445 this._trigger( "change", event, this._uiHash() ); 446 break; 447 } 448 } 449 450 //Post events to containers 451 this._contactContainers( event ); 452 453 //Interconnect with droppables 454 if ( $.ui.ddmanager ) { 455 $.ui.ddmanager.drag( this, event ); 456 } 457 458 //Call callbacks 459 this._trigger( "sort", event, this._uiHash() ); 460 461 this.lastPositionAbs = this.positionAbs; 462 return false; 463 464 }, 465 466 _mouseStop: function( event, noPropagation ) { 467 468 if ( !event ) { 469 return; 470 } 471 472 //If we are using droppables, inform the manager about the drop 473 if ( $.ui.ddmanager && !this.options.dropBehaviour ) { 474 $.ui.ddmanager.drop( this, event ); 475 } 476 477 if ( this.options.revert ) { 478 var that = this, 479 cur = this.placeholder.offset(), 480 axis = this.options.axis, 481 animation = {}; 482 483 if ( !axis || axis === "x" ) { 484 animation.left = cur.left - this.offset.parent.left - this.margins.left + 485 ( this.offsetParent[ 0 ] === this.document[ 0 ].body ? 486 0 : 487 this.offsetParent[ 0 ].scrollLeft 488 ); 489 } 490 if ( !axis || axis === "y" ) { 491 animation.top = cur.top - this.offset.parent.top - this.margins.top + 492 ( this.offsetParent[ 0 ] === this.document[ 0 ].body ? 493 0 : 494 this.offsetParent[ 0 ].scrollTop 495 ); 496 } 497 this.reverting = true; 498 $( this.helper ).animate( 499 animation, 500 parseInt( this.options.revert, 10 ) || 500, 501 function() { 502 that._clear( event ); 503 } 504 ); 505 } else { 506 this._clear( event, noPropagation ); 507 } 508 509 return false; 510 511 }, 512 513 cancel: function() { 514 515 if ( this.dragging ) { 516 517 this._mouseUp( new $.Event( "mouseup", { target: null } ) ); 518 519 if ( this.options.helper === "original" ) { 520 this.currentItem.css( this._storedCSS ); 521 this._removeClass( this.currentItem, "ui-sortable-helper" ); 522 } else { 523 this.currentItem.show(); 524 } 525 526 //Post deactivating events to containers 527 for ( var i = this.containers.length - 1; i >= 0; i-- ) { 528 this.containers[ i ]._trigger( "deactivate", null, this._uiHash( this ) ); 529 if ( this.containers[ i ].containerCache.over ) { 530 this.containers[ i ]._trigger( "out", null, this._uiHash( this ) ); 531 this.containers[ i ].containerCache.over = 0; 532 } 533 } 534 535 } 536 537 if ( this.placeholder ) { 538 539 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, 540 // it unbinds ALL events from the original node! 541 if ( this.placeholder[ 0 ].parentNode ) { 542 this.placeholder[ 0 ].parentNode.removeChild( this.placeholder[ 0 ] ); 543 } 544 if ( this.options.helper !== "original" && this.helper && 545 this.helper[ 0 ].parentNode ) { 546 this.helper.remove(); 547 } 548 549 $.extend( this, { 550 helper: null, 551 dragging: false, 552 reverting: false, 553 _noFinalSort: null 554 } ); 555 556 if ( this.domPosition.prev ) { 557 $( this.domPosition.prev ).after( this.currentItem ); 558 } else { 559 $( this.domPosition.parent ).prepend( this.currentItem ); 560 } 561 } 562 563 return this; 564 565 }, 566 567 serialize: function( o ) { 568 569 var items = this._getItemsAsjQuery( o && o.connected ), 570 str = []; 571 o = o || {}; 572 573 $( items ).each( function() { 574 var res = ( $( o.item || this ).attr( o.attribute || "id" ) || "" ) 575 .match( o.expression || ( /(.+)[\-=_](.+)/ ) ); 576 if ( res ) { 577 str.push( 578 ( o.key || res[ 1 ] + "[]" ) + 579 "=" + ( o.key && o.expression ? res[ 1 ] : res[ 2 ] ) ); 580 } 581 } ); 582 583 if ( !str.length && o.key ) { 584 str.push( o.key + "=" ); 585 } 586 587 return str.join( "&" ); 588 589 }, 590 591 toArray: function( o ) { 592 593 var items = this._getItemsAsjQuery( o && o.connected ), 594 ret = []; 595 596 o = o || {}; 597 598 items.each( function() { 599 ret.push( $( o.item || this ).attr( o.attribute || "id" ) || "" ); 600 } ); 601 return ret; 602 603 }, 604 605 /* Be careful with the following core functions */ 606 _intersectsWith: function( item ) { 607 608 var x1 = this.positionAbs.left, 609 x2 = x1 + this.helperProportions.width, 610 y1 = this.positionAbs.top, 611 y2 = y1 + this.helperProportions.height, 612 l = item.left, 613 r = l + item.width, 614 t = item.top, 615 b = t + item.height, 616 dyClick = this.offset.click.top, 617 dxClick = this.offset.click.left, 618 isOverElementHeight = ( this.options.axis === "x" ) || ( ( y1 + dyClick ) > t && 619 ( y1 + dyClick ) < b ), 620 isOverElementWidth = ( this.options.axis === "y" ) || ( ( x1 + dxClick ) > l && 621 ( x1 + dxClick ) < r ), 622 isOverElement = isOverElementHeight && isOverElementWidth; 623 624 if ( this.options.tolerance === "pointer" || 625 this.options.forcePointerForContainers || 626 ( this.options.tolerance !== "pointer" && 627 this.helperProportions[ this.floating ? "width" : "height" ] > 628 item[ this.floating ? "width" : "height" ] ) 629 ) { 630 return isOverElement; 631 } else { 632 633 return ( l < x1 + ( this.helperProportions.width / 2 ) && // Right Half 634 x2 - ( this.helperProportions.width / 2 ) < r && // Left Half 635 t < y1 + ( this.helperProportions.height / 2 ) && // Bottom Half 636 y2 - ( this.helperProportions.height / 2 ) < b ); // Top Half 637 638 } 639 }, 640 641 _intersectsWithPointer: function( item ) { 642 var verticalDirection, horizontalDirection, 643 isOverElementHeight = ( this.options.axis === "x" ) || 644 this._isOverAxis( 645 this.positionAbs.top + this.offset.click.top, item.top, item.height ), 646 isOverElementWidth = ( this.options.axis === "y" ) || 647 this._isOverAxis( 648 this.positionAbs.left + this.offset.click.left, item.left, item.width ), 649 isOverElement = isOverElementHeight && isOverElementWidth; 650 651 if ( !isOverElement ) { 652 return false; 653 } 654 655 verticalDirection = this._getDragVerticalDirection(); 656 horizontalDirection = this._getDragHorizontalDirection(); 657 658 return this.floating ? 659 ( ( horizontalDirection === "right" || verticalDirection === "down" ) ? 2 : 1 ) 660 : ( verticalDirection && ( verticalDirection === "down" ? 2 : 1 ) ); 661 662 }, 663 664 _intersectsWithSides: function( item ) { 665 666 var isOverBottomHalf = this._isOverAxis( this.positionAbs.top + 667 this.offset.click.top, item.top + ( item.height / 2 ), item.height ), 668 isOverRightHalf = this._isOverAxis( this.positionAbs.left + 669 this.offset.click.left, item.left + ( item.width / 2 ), item.width ), 670 verticalDirection = this._getDragVerticalDirection(), 671 horizontalDirection = this._getDragHorizontalDirection(); 672 673 if ( this.floating && horizontalDirection ) { 674 return ( ( horizontalDirection === "right" && isOverRightHalf ) || 675 ( horizontalDirection === "left" && !isOverRightHalf ) ); 676 } else { 677 return verticalDirection && ( ( verticalDirection === "down" && isOverBottomHalf ) || 678 ( verticalDirection === "up" && !isOverBottomHalf ) ); 679 } 680 681 }, 682 683 _getDragVerticalDirection: function() { 684 var delta = this.positionAbs.top - this.lastPositionAbs.top; 685 return delta !== 0 && ( delta > 0 ? "down" : "up" ); 686 }, 687 688 _getDragHorizontalDirection: function() { 689 var delta = this.positionAbs.left - this.lastPositionAbs.left; 690 return delta !== 0 && ( delta > 0 ? "right" : "left" ); 691 }, 692 693 refresh: function( event ) { 694 this._refreshItems( event ); 695 this._setHandleClassName(); 696 this.refreshPositions(); 697 return this; 698 }, 699 700 _connectWith: function() { 701 var options = this.options; 702 return options.connectWith.constructor === String ? 703 [ options.connectWith ] : 704 options.connectWith; 705 }, 706 707 _getItemsAsjQuery: function( connected ) { 708 709 var i, j, cur, inst, 710 items = [], 711 queries = [], 712 connectWith = this._connectWith(); 713 714 if ( connectWith && connected ) { 715 for ( i = connectWith.length - 1; i >= 0; i-- ) { 716 cur = $( connectWith[ i ], this.document[ 0 ] ); 717 for ( j = cur.length - 1; j >= 0; j-- ) { 718 inst = $.data( cur[ j ], this.widgetFullName ); 719 if ( inst && inst !== this && !inst.options.disabled ) { 720 queries.push( [ $.isFunction( inst.options.items ) ? 721 inst.options.items.call( inst.element ) : 722 $( inst.options.items, inst.element ) 723 .not( ".ui-sortable-helper" ) 724 .not( ".ui-sortable-placeholder" ), inst ] ); 725 } 726 } 727 } 728 } 729 730 queries.push( [ $.isFunction( this.options.items ) ? 731 this.options.items 732 .call( this.element, null, { options: this.options, item: this.currentItem } ) : 733 $( this.options.items, this.element ) 734 .not( ".ui-sortable-helper" ) 735 .not( ".ui-sortable-placeholder" ), this ] ); 736 737 function addItems() { 738 items.push( this ); 739 } 740 for ( i = queries.length - 1; i >= 0; i-- ) { 741 queries[ i ][ 0 ].each( addItems ); 742 } 743 744 return $( items ); 745 746 }, 747 748 _removeCurrentsFromItems: function() { 749 750 var list = this.currentItem.find( ":data(" + this.widgetName + "-item)" ); 751 752 this.items = $.grep( this.items, function( item ) { 753 for ( var j = 0; j < list.length; j++ ) { 754 if ( list[ j ] === item.item[ 0 ] ) { 755 return false; 756 } 757 } 758 return true; 759 } ); 760 761 }, 762 763 _refreshItems: function( event ) { 764 765 this.items = []; 766 this.containers = [ this ]; 767 768 var i, j, cur, inst, targetData, _queries, item, queriesLength, 769 items = this.items, 770 queries = [ [ $.isFunction( this.options.items ) ? 771 this.options.items.call( this.element[ 0 ], event, { item: this.currentItem } ) : 772 $( this.options.items, this.element ), this ] ], 773 connectWith = this._connectWith(); 774 775 //Shouldn't be run the first time through due to massive slow-down 776 if ( connectWith && this.ready ) { 777 for ( i = connectWith.length - 1; i >= 0; i-- ) { 778 cur = $( connectWith[ i ], this.document[ 0 ] ); 779 for ( j = cur.length - 1; j >= 0; j-- ) { 780 inst = $.data( cur[ j ], this.widgetFullName ); 781 if ( inst && inst !== this && !inst.options.disabled ) { 782 queries.push( [ $.isFunction( inst.options.items ) ? 783 inst.options.items 784 .call( inst.element[ 0 ], event, { item: this.currentItem } ) : 785 $( inst.options.items, inst.element ), inst ] ); 786 this.containers.push( inst ); 787 } 788 } 789 } 790 } 791 792 for ( i = queries.length - 1; i >= 0; i-- ) { 793 targetData = queries[ i ][ 1 ]; 794 _queries = queries[ i ][ 0 ]; 795 796 for ( j = 0, queriesLength = _queries.length; j < queriesLength; j++ ) { 797 item = $( _queries[ j ] ); 798 799 // Data for target checking (mouse manager) 800 item.data( this.widgetName + "-item", targetData ); 801 802 items.push( { 803 item: item, 804 instance: targetData, 805 width: 0, height: 0, 806 left: 0, top: 0 807 } ); 808 } 809 } 810 811 }, 812 813 refreshPositions: function( fast ) { 814 815 // Determine whether items are being displayed horizontally 816 this.floating = this.items.length ? 817 this.options.axis === "x" || this._isFloating( this.items[ 0 ].item ) : 818 false; 819 820 //This has to be redone because due to the item being moved out/into the offsetParent, 821 // the offsetParent's position will change 822 if ( this.offsetParent && this.helper ) { 823 this.offset.parent = this._getParentOffset(); 824 } 825 826 var i, item, t, p; 827 828 for ( i = this.items.length - 1; i >= 0; i-- ) { 829 item = this.items[ i ]; 830 831 //We ignore calculating positions of all connected containers when we're not over them 832 if ( item.instance !== this.currentContainer && this.currentContainer && 833 item.item[ 0 ] !== this.currentItem[ 0 ] ) { 834 continue; 835 } 836 837 t = this.options.toleranceElement ? 838 $( this.options.toleranceElement, item.item ) : 839 item.item; 840 841 if ( !fast ) { 842 item.width = t.outerWidth(); 843 item.height = t.outerHeight(); 844 } 845 846 p = t.offset(); 847 item.left = p.left; 848 item.top = p.top; 849 } 850 851 if ( this.options.custom && this.options.custom.refreshContainers ) { 852 this.options.custom.refreshContainers.call( this ); 853 } else { 854 for ( i = this.containers.length - 1; i >= 0; i-- ) { 855 p = this.containers[ i ].element.offset(); 856 this.containers[ i ].containerCache.left = p.left; 857 this.containers[ i ].containerCache.top = p.top; 858 this.containers[ i ].containerCache.width = 859 this.containers[ i ].element.outerWidth(); 860 this.containers[ i ].containerCache.height = 861 this.containers[ i ].element.outerHeight(); 862 } 863 } 864 865 return this; 866 }, 867 868 _createPlaceholder: function( that ) { 869 that = that || this; 870 var className, 871 o = that.options; 872 873 if ( !o.placeholder || o.placeholder.constructor === String ) { 874 className = o.placeholder; 875 o.placeholder = { 876 element: function() { 877 878 var nodeName = that.currentItem[ 0 ].nodeName.toLowerCase(), 879 element = $( "<" + nodeName + ">", that.document[ 0 ] ); 880 881 that._addClass( element, "ui-sortable-placeholder", 882 className || that.currentItem[ 0 ].className ) 883 ._removeClass( element, "ui-sortable-helper" ); 884 885 if ( nodeName === "tbody" ) { 886 that._createTrPlaceholder( 887 that.currentItem.find( "tr" ).eq( 0 ), 888 $( "<tr>", that.document[ 0 ] ).appendTo( element ) 889 ); 890 } else if ( nodeName === "tr" ) { 891 that._createTrPlaceholder( that.currentItem, element ); 892 } else if ( nodeName === "img" ) { 893 element.attr( "src", that.currentItem.attr( "src" ) ); 894 } 895 896 if ( !className ) { 897 element.css( "visibility", "hidden" ); 898 } 899 900 return element; 901 }, 902 update: function( container, p ) { 903 904 // 1. If a className is set as 'placeholder option, we don't force sizes - 905 // the class is responsible for that 906 // 2. The option 'forcePlaceholderSize can be enabled to force it even if a 907 // class name is specified 908 if ( className && !o.forcePlaceholderSize ) { 909 return; 910 } 911 912 //If the element doesn't have a actual height by itself (without styles coming 913 // from a stylesheet), it receives the inline height from the dragged item 914 if ( !p.height() ) { 915 p.height( 916 that.currentItem.innerHeight() - 917 parseInt( that.currentItem.css( "paddingTop" ) || 0, 10 ) - 918 parseInt( that.currentItem.css( "paddingBottom" ) || 0, 10 ) ); 919 } 920 if ( !p.width() ) { 921 p.width( 922 that.currentItem.innerWidth() - 923 parseInt( that.currentItem.css( "paddingLeft" ) || 0, 10 ) - 924 parseInt( that.currentItem.css( "paddingRight" ) || 0, 10 ) ); 925 } 926 } 927 }; 928 } 929 930 //Create the placeholder 931 that.placeholder = $( o.placeholder.element.call( that.element, that.currentItem ) ); 932 933 //Append it after the actual current item 934 that.currentItem.after( that.placeholder ); 935 936 //Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317) 937 o.placeholder.update( that, that.placeholder ); 938 939 }, 940 941 _createTrPlaceholder: function( sourceTr, targetTr ) { 942 var that = this; 943 944 sourceTr.children().each( function() { 945 $( "<td> </td>", that.document[ 0 ] ) 946 .attr( "colspan", $( this ).attr( "colspan" ) || 1 ) 947 .appendTo( targetTr ); 948 } ); 949 }, 950 951 _contactContainers: function( event ) { 952 var i, j, dist, itemWithLeastDistance, posProperty, sizeProperty, cur, nearBottom, 953 floating, axis, 954 innermostContainer = null, 955 innermostIndex = null; 956 957 // Get innermost container that intersects with item 958 for ( i = this.containers.length - 1; i >= 0; i-- ) { 959 960 // Never consider a container that's located within the item itself 961 if ( $.contains( this.currentItem[ 0 ], this.containers[ i ].element[ 0 ] ) ) { 962 continue; 963 } 964 965 if ( this._intersectsWith( this.containers[ i ].containerCache ) ) { 966 967 // If we've already found a container and it's more "inner" than this, then continue 968 if ( innermostContainer && 969 $.contains( 970 this.containers[ i ].element[ 0 ], 971 innermostContainer.element[ 0 ] ) ) { 972 continue; 973 } 974 975 innermostContainer = this.containers[ i ]; 976 innermostIndex = i; 977 978 } else { 979 980 // container doesn't intersect. trigger "out" event if necessary 981 if ( this.containers[ i ].containerCache.over ) { 982 this.containers[ i ]._trigger( "out", event, this._uiHash( this ) ); 983 this.containers[ i ].containerCache.over = 0; 984 } 985 } 986 987 } 988 989 // If no intersecting containers found, return 990 if ( !innermostContainer ) { 991 return; 992 } 993 994 // Move the item into the container if it's not there already 995 if ( this.containers.length === 1 ) { 996 if ( !this.containers[ innermostIndex ].containerCache.over ) { 997 this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash( this ) ); 998 this.containers[ innermostIndex ].containerCache.over = 1; 999 } 1000 } else { 1001 1002 // When entering a new container, we will find the item with the least distance and 1003 // append our item near it 1004 dist = 10000; 1005 itemWithLeastDistance = null; 1006 floating = innermostContainer.floating || this._isFloating( this.currentItem ); 1007 posProperty = floating ? "left" : "top"; 1008 sizeProperty = floating ? "width" : "height"; 1009 axis = floating ? "pageX" : "pageY"; 1010 1011 for ( j = this.items.length - 1; j >= 0; j-- ) { 1012 if ( !$.contains( 1013 this.containers[ innermostIndex ].element[ 0 ], this.items[ j ].item[ 0 ] ) 1014 ) { 1015 continue; 1016 } 1017 if ( this.items[ j ].item[ 0 ] === this.currentItem[ 0 ] ) { 1018 continue; 1019 } 1020 1021 cur = this.items[ j ].item.offset()[ posProperty ]; 1022 nearBottom = false; 1023 if ( event[ axis ] - cur > this.items[ j ][ sizeProperty ] / 2 ) { 1024 nearBottom = true; 1025 } 1026 1027 if ( Math.abs( event[ axis ] - cur ) < dist ) { 1028 dist = Math.abs( event[ axis ] - cur ); 1029 itemWithLeastDistance = this.items[ j ]; 1030 this.direction = nearBottom ? "up" : "down"; 1031 } 1032 } 1033 1034 //Check if dropOnEmpty is enabled 1035 if ( !itemWithLeastDistance && !this.options.dropOnEmpty ) { 1036 return; 1037 } 1038 1039 if ( this.currentContainer === this.containers[ innermostIndex ] ) { 1040 if ( !this.currentContainer.containerCache.over ) { 1041 this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash() ); 1042 this.currentContainer.containerCache.over = 1; 1043 } 1044 return; 1045 } 1046 1047 itemWithLeastDistance ? 1048 this._rearrange( event, itemWithLeastDistance, null, true ) : 1049 this._rearrange( event, null, this.containers[ innermostIndex ].element, true ); 1050 this._trigger( "change", event, this._uiHash() ); 1051 this.containers[ innermostIndex ]._trigger( "change", event, this._uiHash( this ) ); 1052 this.currentContainer = this.containers[ innermostIndex ]; 1053 1054 //Update the placeholder 1055 this.options.placeholder.update( this.currentContainer, this.placeholder ); 1056 1057 this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash( this ) ); 1058 this.containers[ innermostIndex ].containerCache.over = 1; 1059 } 1060 1061 }, 1062 1063 _createHelper: function( event ) { 1064 1065 var o = this.options, 1066 helper = $.isFunction( o.helper ) ? 1067 $( o.helper.apply( this.element[ 0 ], [ event, this.currentItem ] ) ) : 1068 ( o.helper === "clone" ? this.currentItem.clone() : this.currentItem ); 1069 1070 //Add the helper to the DOM if that didn't happen already 1071 if ( !helper.parents( "body" ).length ) { 1072 $( o.appendTo !== "parent" ? 1073 o.appendTo : 1074 this.currentItem[ 0 ].parentNode )[ 0 ].appendChild( helper[ 0 ] ); 1075 } 1076 1077 if ( helper[ 0 ] === this.currentItem[ 0 ] ) { 1078 this._storedCSS = { 1079 width: this.currentItem[ 0 ].style.width, 1080 height: this.currentItem[ 0 ].style.height, 1081 position: this.currentItem.css( "position" ), 1082 top: this.currentItem.css( "top" ), 1083 left: this.currentItem.css( "left" ) 1084 }; 1085 } 1086 1087 if ( !helper[ 0 ].style.width || o.forceHelperSize ) { 1088 helper.width( this.currentItem.width() ); 1089 } 1090 if ( !helper[ 0 ].style.height || o.forceHelperSize ) { 1091 helper.height( this.currentItem.height() ); 1092 } 1093 1094 return helper; 1095 1096 }, 1097 1098 _adjustOffsetFromHelper: function( obj ) { 1099 if ( typeof obj === "string" ) { 1100 obj = obj.split( " " ); 1101 } 1102 if ( $.isArray( obj ) ) { 1103 obj = { left: +obj[ 0 ], top: +obj[ 1 ] || 0 }; 1104 } 1105 if ( "left" in obj ) { 1106 this.offset.click.left = obj.left + this.margins.left; 1107 } 1108 if ( "right" in obj ) { 1109 this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left; 1110 } 1111 if ( "top" in obj ) { 1112 this.offset.click.top = obj.top + this.margins.top; 1113 } 1114 if ( "bottom" in obj ) { 1115 this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top; 1116 } 1117 }, 1118 1119 _getParentOffset: function() { 1120 1121 //Get the offsetParent and cache its position 1122 this.offsetParent = this.helper.offsetParent(); 1123 var po = this.offsetParent.offset(); 1124 1125 // This is a special case where we need to modify a offset calculated on start, since the 1126 // following happened: 1127 // 1. The position of the helper is absolute, so it's position is calculated based on the 1128 // next positioned parent 1129 // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't 1130 // the document, which means that the scroll is included in the initial calculation of the 1131 // offset of the parent, and never recalculated upon drag 1132 if ( this.cssPosition === "absolute" && this.scrollParent[ 0 ] !== this.document[ 0 ] && 1133 $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) { 1134 po.left += this.scrollParent.scrollLeft(); 1135 po.top += this.scrollParent.scrollTop(); 1136 } 1137 1138 // This needs to be actually done for all browsers, since pageX/pageY includes this 1139 // information with an ugly IE fix 1140 if ( this.offsetParent[ 0 ] === this.document[ 0 ].body || 1141 ( this.offsetParent[ 0 ].tagName && 1142 this.offsetParent[ 0 ].tagName.toLowerCase() === "html" && $.ui.ie ) ) { 1143 po = { top: 0, left: 0 }; 1144 } 1145 1146 return { 1147 top: po.top + ( parseInt( this.offsetParent.css( "borderTopWidth" ), 10 ) || 0 ), 1148 left: po.left + ( parseInt( this.offsetParent.css( "borderLeftWidth" ), 10 ) || 0 ) 1149 }; 1150 1151 }, 1152 1153 _getRelativeOffset: function() { 1154 1155 if ( this.cssPosition === "relative" ) { 1156 var p = this.currentItem.position(); 1157 return { 1158 top: p.top - ( parseInt( this.helper.css( "top" ), 10 ) || 0 ) + 1159 this.scrollParent.scrollTop(), 1160 left: p.left - ( parseInt( this.helper.css( "left" ), 10 ) || 0 ) + 1161 this.scrollParent.scrollLeft() 1162 }; 1163 } else { 1164 return { top: 0, left: 0 }; 1165 } 1166 1167 }, 1168 1169 _cacheMargins: function() { 1170 this.margins = { 1171 left: ( parseInt( this.currentItem.css( "marginLeft" ), 10 ) || 0 ), 1172 top: ( parseInt( this.currentItem.css( "marginTop" ), 10 ) || 0 ) 1173 }; 1174 }, 1175 1176 _cacheHelperProportions: function() { 1177 this.helperProportions = { 1178 width: this.helper.outerWidth(), 1179 height: this.helper.outerHeight() 1180 }; 1181 }, 1182 1183 _setContainment: function() { 1184 1185 var ce, co, over, 1186 o = this.options; 1187 if ( o.containment === "parent" ) { 1188 o.containment = this.helper[ 0 ].parentNode; 1189 } 1190 if ( o.containment === "document" || o.containment === "window" ) { 1191 this.containment = [ 1192 0 - this.offset.relative.left - this.offset.parent.left, 1193 0 - this.offset.relative.top - this.offset.parent.top, 1194 o.containment === "document" ? 1195 this.document.width() : 1196 this.window.width() - this.helperProportions.width - this.margins.left, 1197 ( o.containment === "document" ? 1198 ( this.document.height() || document.body.parentNode.scrollHeight ) : 1199 this.window.height() || this.document[ 0 ].body.parentNode.scrollHeight 1200 ) - this.helperProportions.height - this.margins.top 1201 ]; 1202 } 1203 1204 if ( !( /^(document|window|parent)$/ ).test( o.containment ) ) { 1205 ce = $( o.containment )[ 0 ]; 1206 co = $( o.containment ).offset(); 1207 over = ( $( ce ).css( "overflow" ) !== "hidden" ); 1208 1209 this.containment = [ 1210 co.left + ( parseInt( $( ce ).css( "borderLeftWidth" ), 10 ) || 0 ) + 1211 ( parseInt( $( ce ).css( "paddingLeft" ), 10 ) || 0 ) - this.margins.left, 1212 co.top + ( parseInt( $( ce ).css( "borderTopWidth" ), 10 ) || 0 ) + 1213 ( parseInt( $( ce ).css( "paddingTop" ), 10 ) || 0 ) - this.margins.top, 1214 co.left + ( over ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) - 1215 ( parseInt( $( ce ).css( "borderLeftWidth" ), 10 ) || 0 ) - 1216 ( parseInt( $( ce ).css( "paddingRight" ), 10 ) || 0 ) - 1217 this.helperProportions.width - this.margins.left, 1218 co.top + ( over ? Math.max( ce.scrollHeight, ce.offsetHeight ) : ce.offsetHeight ) - 1219 ( parseInt( $( ce ).css( "borderTopWidth" ), 10 ) || 0 ) - 1220 ( parseInt( $( ce ).css( "paddingBottom" ), 10 ) || 0 ) - 1221 this.helperProportions.height - this.margins.top 1222 ]; 1223 } 1224 1225 }, 1226 1227 _convertPositionTo: function( d, pos ) { 1228 1229 if ( !pos ) { 1230 pos = this.position; 1231 } 1232 var mod = d === "absolute" ? 1 : -1, 1233 scroll = this.cssPosition === "absolute" && 1234 !( this.scrollParent[ 0 ] !== this.document[ 0 ] && 1235 $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) ? 1236 this.offsetParent : 1237 this.scrollParent, 1238 scrollIsRootNode = ( /(html|body)/i ).test( scroll[ 0 ].tagName ); 1239 1240 return { 1241 top: ( 1242 1243 // The absolute mouse position 1244 pos.top + 1245 1246 // Only for relative positioned nodes: Relative offset from element to offset parent 1247 this.offset.relative.top * mod + 1248 1249 // The offsetParent's offset without borders (offset + border) 1250 this.offset.parent.top * mod - 1251 ( ( this.cssPosition === "fixed" ? 1252 -this.scrollParent.scrollTop() : 1253 ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod ) 1254 ), 1255 left: ( 1256 1257 // The absolute mouse position 1258 pos.left + 1259 1260 // Only for relative positioned nodes: Relative offset from element to offset parent 1261 this.offset.relative.left * mod + 1262 1263 // The offsetParent's offset without borders (offset + border) 1264 this.offset.parent.left * mod - 1265 ( ( this.cssPosition === "fixed" ? 1266 -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : 1267 scroll.scrollLeft() ) * mod ) 1268 ) 1269 }; 1270 1271 }, 1272 1273 _generatePosition: function( event ) { 1274 1275 var top, left, 1276 o = this.options, 1277 pageX = event.pageX, 1278 pageY = event.pageY, 1279 scroll = this.cssPosition === "absolute" && 1280 !( this.scrollParent[ 0 ] !== this.document[ 0 ] && 1281 $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) ? 1282 this.offsetParent : 1283 this.scrollParent, 1284 scrollIsRootNode = ( /(html|body)/i ).test( scroll[ 0 ].tagName ); 1285 1286 // This is another very weird special case that only happens for relative elements: 1287 // 1. If the css position is relative 1288 // 2. and the scroll parent is the document or similar to the offset parent 1289 // we have to refresh the relative offset during the scroll so there are no jumps 1290 if ( this.cssPosition === "relative" && !( this.scrollParent[ 0 ] !== this.document[ 0 ] && 1291 this.scrollParent[ 0 ] !== this.offsetParent[ 0 ] ) ) { 1292 this.offset.relative = this._getRelativeOffset(); 1293 } 1294 1295 /* 1296 * - Position constraining - 1297 * Constrain the position to a mix of grid, containment. 1298 */ 1299 1300 if ( this.originalPosition ) { //If we are not dragging yet, we won't check for options 1301 1302 if ( this.containment ) { 1303 if ( event.pageX - this.offset.click.left < this.containment[ 0 ] ) { 1304 pageX = this.containment[ 0 ] + this.offset.click.left; 1305 } 1306 if ( event.pageY - this.offset.click.top < this.containment[ 1 ] ) { 1307 pageY = this.containment[ 1 ] + this.offset.click.top; 1308 } 1309 if ( event.pageX - this.offset.click.left > this.containment[ 2 ] ) { 1310 pageX = this.containment[ 2 ] + this.offset.click.left; 1311 } 1312 if ( event.pageY - this.offset.click.top > this.containment[ 3 ] ) { 1313 pageY = this.containment[ 3 ] + this.offset.click.top; 1314 } 1315 } 1316 1317 if ( o.grid ) { 1318 top = this.originalPageY + Math.round( ( pageY - this.originalPageY ) / 1319 o.grid[ 1 ] ) * o.grid[ 1 ]; 1320 pageY = this.containment ? 1321 ( ( top - this.offset.click.top >= this.containment[ 1 ] && 1322 top - this.offset.click.top <= this.containment[ 3 ] ) ? 1323 top : 1324 ( ( top - this.offset.click.top >= this.containment[ 1 ] ) ? 1325 top - o.grid[ 1 ] : top + o.grid[ 1 ] ) ) : 1326 top; 1327 1328 left = this.originalPageX + Math.round( ( pageX - this.originalPageX ) / 1329 o.grid[ 0 ] ) * o.grid[ 0 ]; 1330 pageX = this.containment ? 1331 ( ( left - this.offset.click.left >= this.containment[ 0 ] && 1332 left - this.offset.click.left <= this.containment[ 2 ] ) ? 1333 left : 1334 ( ( left - this.offset.click.left >= this.containment[ 0 ] ) ? 1335 left - o.grid[ 0 ] : left + o.grid[ 0 ] ) ) : 1336 left; 1337 } 1338 1339 } 1340 1341 return { 1342 top: ( 1343 1344 // The absolute mouse position 1345 pageY - 1346 1347 // Click offset (relative to the element) 1348 this.offset.click.top - 1349 1350 // Only for relative positioned nodes: Relative offset from element to offset parent 1351 this.offset.relative.top - 1352 1353 // The offsetParent's offset without borders (offset + border) 1354 this.offset.parent.top + 1355 ( ( this.cssPosition === "fixed" ? 1356 -this.scrollParent.scrollTop() : 1357 ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) ) 1358 ), 1359 left: ( 1360 1361 // The absolute mouse position 1362 pageX - 1363 1364 // Click offset (relative to the element) 1365 this.offset.click.left - 1366 1367 // Only for relative positioned nodes: Relative offset from element to offset parent 1368 this.offset.relative.left - 1369 1370 // The offsetParent's offset without borders (offset + border) 1371 this.offset.parent.left + 1372 ( ( this.cssPosition === "fixed" ? 1373 -this.scrollParent.scrollLeft() : 1374 scrollIsRootNode ? 0 : scroll.scrollLeft() ) ) 1375 ) 1376 }; 1377 1378 }, 1379 1380 _rearrange: function( event, i, a, hardRefresh ) { 1381 1382 a ? a[ 0 ].appendChild( this.placeholder[ 0 ] ) : 1383 i.item[ 0 ].parentNode.insertBefore( this.placeholder[ 0 ], 1384 ( this.direction === "down" ? i.item[ 0 ] : i.item[ 0 ].nextSibling ) ); 1385 1386 //Various things done here to improve the performance: 1387 // 1. we create a setTimeout, that calls refreshPositions 1388 // 2. on the instance, we have a counter variable, that get's higher after every append 1389 // 3. on the local scope, we copy the counter variable, and check in the timeout, 1390 // if it's still the same 1391 // 4. this lets only the last addition to the timeout stack through 1392 this.counter = this.counter ? ++this.counter : 1; 1393 var counter = this.counter; 1394 1395 this._delay( function() { 1396 if ( counter === this.counter ) { 1397 1398 //Precompute after each DOM insertion, NOT on mousemove 1399 this.refreshPositions( !hardRefresh ); 1400 } 1401 } ); 1402 1403 }, 1404 1405 _clear: function( event, noPropagation ) { 1406 1407 this.reverting = false; 1408 1409 // We delay all events that have to be triggered to after the point where the placeholder 1410 // has been removed and everything else normalized again 1411 var i, 1412 delayedTriggers = []; 1413 1414 // We first have to update the dom position of the actual currentItem 1415 // Note: don't do it if the current item is already removed (by a user), or it gets 1416 // reappended (see #4088) 1417 if ( !this._noFinalSort && this.currentItem.parent().length ) { 1418 this.placeholder.before( this.currentItem ); 1419 } 1420 this._noFinalSort = null; 1421 1422 if ( this.helper[ 0 ] === this.currentItem[ 0 ] ) { 1423 for ( i in this._storedCSS ) { 1424 if ( this._storedCSS[ i ] === "auto" || this._storedCSS[ i ] === "static" ) { 1425 this._storedCSS[ i ] = ""; 1426 } 1427 } 1428 this.currentItem.css( this._storedCSS ); 1429 this._removeClass( this.currentItem, "ui-sortable-helper" ); 1430 } else { 1431 this.currentItem.show(); 1432 } 1433 1434 if ( this.fromOutside && !noPropagation ) { 1435 delayedTriggers.push( function( event ) { 1436 this._trigger( "receive", event, this._uiHash( this.fromOutside ) ); 1437 } ); 1438 } 1439 if ( ( this.fromOutside || 1440 this.domPosition.prev !== 1441 this.currentItem.prev().not( ".ui-sortable-helper" )[ 0 ] || 1442 this.domPosition.parent !== this.currentItem.parent()[ 0 ] ) && !noPropagation ) { 1443 1444 // Trigger update callback if the DOM position has changed 1445 delayedTriggers.push( function( event ) { 1446 this._trigger( "update", event, this._uiHash() ); 1447 } ); 1448 } 1449 1450 // Check if the items Container has Changed and trigger appropriate 1451 // events. 1452 if ( this !== this.currentContainer ) { 1453 if ( !noPropagation ) { 1454 delayedTriggers.push( function( event ) { 1455 this._trigger( "remove", event, this._uiHash() ); 1456 } ); 1457 delayedTriggers.push( ( function( c ) { 1458 return function( event ) { 1459 c._trigger( "receive", event, this._uiHash( this ) ); 1460 }; 1461 } ).call( this, this.currentContainer ) ); 1462 delayedTriggers.push( ( function( c ) { 1463 return function( event ) { 1464 c._trigger( "update", event, this._uiHash( this ) ); 1465 }; 1466 } ).call( this, this.currentContainer ) ); 1467 } 1468 } 1469 1470 //Post events to containers 1471 function delayEvent( type, instance, container ) { 1472 return function( event ) { 1473 container._trigger( type, event, instance._uiHash( instance ) ); 1474 }; 1475 } 1476 for ( i = this.containers.length - 1; i >= 0; i-- ) { 1477 if ( !noPropagation ) { 1478 delayedTriggers.push( delayEvent( "deactivate", this, this.containers[ i ] ) ); 1479 } 1480 if ( this.containers[ i ].containerCache.over ) { 1481 delayedTriggers.push( delayEvent( "out", this, this.containers[ i ] ) ); 1482 this.containers[ i ].containerCache.over = 0; 1483 } 1484 } 1485 1486 //Do what was originally in plugins 1487 if ( this.storedCursor ) { 1488 this.document.find( "body" ).css( "cursor", this.storedCursor ); 1489 this.storedStylesheet.remove(); 1490 } 1491 if ( this._storedOpacity ) { 1492 this.helper.css( "opacity", this._storedOpacity ); 1493 } 1494 if ( this._storedZIndex ) { 1495 this.helper.css( "zIndex", this._storedZIndex === "auto" ? "" : this._storedZIndex ); 1496 } 1497 1498 this.dragging = false; 1499 1500 if ( !noPropagation ) { 1501 this._trigger( "beforeStop", event, this._uiHash() ); 1502 } 1503 1504 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, 1505 // it unbinds ALL events from the original node! 1506 this.placeholder[ 0 ].parentNode.removeChild( this.placeholder[ 0 ] ); 1507 1508 if ( !this.cancelHelperRemoval ) { 1509 if ( this.helper[ 0 ] !== this.currentItem[ 0 ] ) { 1510 this.helper.remove(); 1511 } 1512 this.helper = null; 1513 } 1514 1515 if ( !noPropagation ) { 1516 for ( i = 0; i < delayedTriggers.length; i++ ) { 1517 1518 // Trigger all delayed events 1519 delayedTriggers[ i ].call( this, event ); 1520 } 1521 this._trigger( "stop", event, this._uiHash() ); 1522 } 1523 1524 this.fromOutside = false; 1525 return !this.cancelHelperRemoval; 1526 1527 }, 1528 1529 _trigger: function() { 1530 if ( $.Widget.prototype._trigger.apply( this, arguments ) === false ) { 1531 this.cancel(); 1532 } 1533 }, 1534 1535 _uiHash: function( _inst ) { 1536 var inst = _inst || this; 1537 return { 1538 helper: inst.helper, 1539 placeholder: inst.placeholder || $( [] ), 1540 position: inst.position, 1541 originalPosition: inst.originalPosition, 1542 offset: inst.positionAbs, 1543 item: inst.currentItem, 1544 sender: _inst ? _inst.element : null 1545 }; 1546 } 1547 1548 } ); 1549 1550 } ) );