1/* 2 * jQuery UI Sortable 1.8.16 3 * 4 * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about) 5 * Dual licensed under the MIT or GPL Version 2 licenses. 6 * http://jquery.org/license 7 * 8 * http://docs.jquery.com/UI/Sortables 9 * 10 * Depends: 11 * jquery.ui.core.js 12 * jquery.ui.mouse.js 13 * jquery.ui.widget.js 14 */ 15(function( $, undefined ) { 16 17$.widget("ui.sortable", $.ui.mouse, { 18 widgetEventPrefix: "sort", 19 options: { 20 appendTo: "parent", 21 axis: false, 22 connectWith: false, 23 containment: false, 24 cursor: 'auto', 25 cursorAt: false, 26 dropOnEmpty: true, 27 forcePlaceholderSize: false, 28 forceHelperSize: false, 29 grid: false, 30 handle: false, 31 helper: "original", 32 items: '> *', 33 opacity: false, 34 placeholder: false, 35 revert: false, 36 scroll: true, 37 scrollSensitivity: 20, 38 scrollSpeed: 20, 39 scope: "default", 40 tolerance: "intersect", 41 zIndex: 1000 42 }, 43 _create: function() { 44 45 var o = this.options; 46 this.containerCache = {}; 47 this.element.addClass("ui-sortable"); 48 49 //Get the items 50 this.refresh(); 51 52 //Let's determine if the items are being displayed horizontally 53 this.floating = this.items.length ? o.axis === 'x' || (/left|right/).test(this.items[0].item.css('float')) || (/inline|table-cell/).test(this.items[0].item.css('display')) : false; 54 55 //Let's determine the parent's offset 56 this.offset = this.element.offset(); 57 58 //Initialize mouse events for interaction 59 this._mouseInit(); 60 61 }, 62 63 destroy: function() { 64 this.element 65 .removeClass("ui-sortable ui-sortable-disabled") 66 .removeData("sortable") 67 .unbind(".sortable"); 68 this._mouseDestroy(); 69 70 for ( var i = this.items.length - 1; i >= 0; i-- ) 71 this.items[i].item.removeData("sortable-item"); 72 73 return this; 74 }, 75 76 _setOption: function(key, value){ 77 if ( key === "disabled" ) { 78 this.options[ key ] = value; 79 80 this.widget() 81 [ value ? "addClass" : "removeClass"]( "ui-sortable-disabled" ); 82 } else { 83 // Don't call widget base _setOption for disable as it adds ui-state-disabled class 84 $.Widget.prototype._setOption.apply(this, arguments); 85 } 86 }, 87 88 _mouseCapture: function(event, overrideHandle) { 89 90 if (this.reverting) { 91 return false; 92 } 93 94 if(this.options.disabled || this.options.type == 'static') return false; 95 96 //We have to refresh the items data once first 97 this._refreshItems(event); 98 99 //Find out if the clicked node (or one of its parents) is a actual item in this.items 100 var currentItem = null, self = this, nodes = $(event.target).parents().each(function() { 101 if($.data(this, 'sortable-item') == self) { 102 currentItem = $(this); 103 return false; 104 } 105 }); 106 if($.data(event.target, 'sortable-item') == self) currentItem = $(event.target); 107 108 if(!currentItem) return false; 109 if(this.options.handle && !overrideHandle) { 110 var validHandle = false; 111 112 $(this.options.handle, currentItem).find("*").andSelf().each(function() { if(this == event.target) validHandle = true; }); 113 if(!validHandle) return false; 114 } 115 116 this.currentItem = currentItem; 117 this._removeCurrentsFromItems(); 118 return true; 119 120 }, 121 122 _mouseStart: function(event, overrideHandle, noActivation) { 123 124 var o = this.options, self = this; 125 this.currentContainer = this; 126 127 //We only need to call refreshPositions, because the refreshItems call has been moved to mouseCapture 128 this.refreshPositions(); 129 130 //Create and append the visible helper 131 this.helper = this._createHelper(event); 132 133 //Cache the helper size 134 this._cacheHelperProportions(); 135 136 /* 137 * - Position generation - 138 * This block generates everything position related - it's the core of draggables. 139 */ 140 141 //Cache the margins of the original element 142 this._cacheMargins(); 143 144 //Get the next scrolling parent 145 this.scrollParent = this.helper.scrollParent(); 146 147 //The element's absolute position on the page minus margins 148 this.offset = this.currentItem.offset(); 149 this.offset = { 150 top: this.offset.top - this.margins.top, 151 left: this.offset.left - this.margins.left 152 }; 153 154 // Only after we got the offset, we can change the helper's position to absolute 155 // TODO: Still need to figure out a way to make relative sorting possible 156 this.helper.css("position", "absolute"); 157 this.cssPosition = this.helper.css("position"); 158 159 $.extend(this.offset, { 160 click: { //Where the click happened, relative to the element 161 left: event.pageX - this.offset.left, 162 top: event.pageY - this.offset.top 163 }, 164 parent: this._getParentOffset(), 165 relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper 166 }); 167 168 //Generate the original position 169 this.originalPosition = this._generatePosition(event); 170 this.originalPageX = event.pageX; 171 this.originalPageY = event.pageY; 172 173 //Adjust the mouse offset relative to the helper if 'cursorAt' is supplied 174 (o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt)); 175 176 //Cache the former DOM position 177 this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] }; 178 179 //If the helper is not the original, hide the original so it's not playing any role during the drag, won't cause anything bad this way 180 if(this.helper[0] != this.currentItem[0]) { 181 this.currentItem.hide(); 182 } 183 184 //Create the placeholder 185 this._createPlaceholder(); 186 187 //Set a containment if given in the options 188 if(o.containment) 189 this._setContainment(); 190 191 if(o.cursor) { // cursor option 192 if ($('body').css("cursor")) this._storedCursor = $('body').css("cursor"); 193 $('body').css("cursor", o.cursor); 194 } 195 196 if(o.opacity) { // opacity option 197 if (this.helper.css("opacity")) this._storedOpacity = this.helper.css("opacity"); 198 this.helper.css("opacity", o.opacity); 199 } 200 201 if(o.zIndex) { // zIndex option 202 if (this.helper.css("zIndex")) this._storedZIndex = this.helper.css("zIndex"); 203 this.helper.css("zIndex", o.zIndex); 204 } 205 206 //Prepare scrolling 207 if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') 208 this.overflowOffset = this.scrollParent.offset(); 209 210 //Call callbacks 211 this._trigger("start", event, this._uiHash()); 212 213 //Recache the helper size 214 if(!this._preserveHelperProportions) 215 this._cacheHelperProportions(); 216 217 218 //Post 'activate' events to possible containers 219 if(!noActivation) { 220 for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i]._trigger("activate", event, self._uiHash(this)); } 221 } 222 223 //Prepare possible droppables 224 if($.ui.ddmanager) 225 $.ui.ddmanager.current = this; 226 227 if ($.ui.ddmanager && !o.dropBehaviour) 228 $.ui.ddmanager.prepareOffsets(this, event); 229 230 this.dragging = true; 231 232 this.helper.addClass("ui-sortable-helper"); 233 this._mouseDrag(event); //Execute the drag once - this causes the helper not to be visible before getting its correct position 234 return true; 235 236 }, 237 238 _mouseDrag: function(event) { 239 240 //Compute the helpers position 241 this.position = this._generatePosition(event); 242 this.positionAbs = this._convertPositionTo("absolute"); 243 244 if (!this.lastPositionAbs) { 245 this.lastPositionAbs = this.positionAbs; 246 } 247 248 //Do scrolling 249 if(this.options.scroll) { 250 var o = this.options, scrolled = false;
251 if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') { 252 253 if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) 254 this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed; 255 else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity) 256 this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed; 257 258 if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) 259 this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed; 260 else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity) 261 this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed; 262 263 } else { 264 265 if(event.pageY - $(document).scrollTop() < o.scrollSensitivity) 266 scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed); 267 else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity) 268 scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed); 269 270 if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity) 271 scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed); 272 else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity) 273 scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed); 274 275 } 276 277 if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) 278 $.ui.ddmanager.prepareOffsets(this, event); 279 } 280 281 //Regenerate the absolute position used for position checks 282 this.positionAbs = this._convertPositionTo("absolute"); 283 284 //Set the helper position 285 if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px'; 286 if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px'; 287 288 //Rearrange 289 for (var i = this.items.length - 1; i >= 0; i--) { 290 291 //Cache variables and intersection, continue if no intersection 292 var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item); 293 if (!intersection) continue; 294 295 if(itemElement != this.currentItem[0] //cannot intersect with itself 296 && this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before 297 && !$.ui.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked 298 && (this.options.type == 'semi-dynamic' ? !$.ui.contains(this.element[0], itemElement) : true) 299 //&& itemElement.parentNode == this.placeholder[0].parentNode // only rearrange items within the same container 300 ) { 301 302 this.direction = intersection == 1 ? "down" : "up"; 303 304 if (this.options.tolerance == "pointer" || this._intersectsWithSides(item)) { 305 this._rearrange(event, item); 306 } else { 307 break; 308 } 309 310 this._trigger("change", event, this._uiHash()); 311 break; 312 } 313 } 314 315 //Post events to containers 316 this._contactContainers(event); 317 318 //Interconnect with droppables 319 if($.ui.ddmanager) $.ui.ddmanager.drag(this, event); 320 321 //Call callbacks 322 this._trigger('sort', event, this._uiHash()); 323 324 this.lastPositionAbs = this.positionAbs; 325 return false; 326 327 }, 328 329 _mouseStop: function(event, noPropagation) { 330 331 if(!event) return; 332 333 //If we are using droppables, inform the manager about the drop 334 if ($.ui.ddmanager && !this.options.dropBehaviour) 335 $.ui.ddmanager.drop(this, event); 336 337 if(this.options.revert) { 338 var self = this; 339 var cur = self.placeholder.offset(); 340 341 self.reverting = true; 342 343 $(this.helper).animate({ 344 left: cur.left - this.offset.parent.left - self.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft), 345 top: cur.top - this.offset.parent.top - self.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop) 346 }, parseInt(this.options.revert, 10) || 500, function() { 347 self._clear(event); 348 }); 349 } else { 350 this._clear(event, noPropagation); 351 } 352 353 return false;
354 355 }, 356 357 cancel: function() { 358 359 var self = this; 360 361 if(this.dragging) { 362 363 this._mouseUp({ target: null }); 364 365 if(this.options.helper == "original") 366 this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper"); 367 else 368 this.currentItem.show(); 369 370 //Post deactivating events to containers 371 for (var i = this.containers.length - 1; i >= 0; i--){ 372 this.containers[i]._trigger("deactivate", null, self._uiHash(this)); 373 if(this.containers[i].containerCache.over) { 374 this.containers[i]._trigger("out", null, self._uiHash(this)); 375 this.containers[i].containerCache.over = 0; 376 } 377 } 378 379 } 380 381 if (this.placeholder) { 382 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node! 383 if(this.placeholder[0].parentNode) this.placeholder[0].parentNode.removeChild(this.placeholder[0]); 384 if(this.options.helper != "original" && this.helper && this.helper[0].parentNode) this.helper.remove(); 385 386 $.extend(this, { 387 helper: null, 388 dragging: false, 389 reverting: false, 390 _noFinalSort: null 391 }); 392 393 if(this.domPosition.prev) { 394 $(this.domPosition.prev).after(this.currentItem); 395 } else { 396 $(this.domPosition.parent).prepend(this.currentItem); 397 } 398 } 399 400 return this; 401 402 }, 403 404 serialize: function(o) { 405 406 var items = this._getItemsAsjQuery(o && o.connected); 407 var str = []; o = o || {}; 408 409 $(items).each(function() { 410 var res = ($(o.item || this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/)); 411 if(res) str.push((o.key || res[1]+'[]')+'='+(o.key && o.expression ? res[1] : res[2])); 412 }); 413 414 if(!str.length && o.key) { 415 str.push(o.key + '='); 416 } 417 418 return str.join('&'); 419 420 }, 421 422 toArray: function(o) { 423 424 var items = this._getItemsAsjQuery(o && o.connected); 425 var ret = []; o = o || {}; 426 427 items.each(function() { ret.push($(o.item || this).attr(o.attribute || 'id') || ''); }); 428 return ret; 429 430 }, 431 432 /* Be careful with the following core functions */ 433 _intersectsWith: function(item) { 434 435 var x1 = this.positionAbs.left, 436 x2 = x1 + this.helperProportions.width, 437 y1 = this.positionAbs.top, 438 y2 = y1 + this.helperProportions.height; 439 440 var l = item.left, 441 r = l + item.width, 442 t = item.top, 443 b = t + item.height; 444 445 var dyClick = this.offset.click.top, 446 dxClick = this.offset.click.left; 447 448 var isOverElement = (y1 + dyClick) > t && (y1 + dyClick) < b && (x1 + dxClick) > l && (x1 + dxClick) < r; 449 450 if( this.options.tolerance == "pointer" 451 || this.options.forcePointerForContainers 452 || (this.options.tolerance != "pointer" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height']) 453 ) { 454 return isOverElement; 455 } else { 456 457 return (l < x1 + (this.helperProportions.width / 2) // Right Half 458 && x2 - (this.helperProportions.width / 2) < r // Left Half 459 && t < y1 + (this.helperProportions.height / 2) // Bottom Half 460 && y2 - (this.helperProportions.height / 2) < b ); // Top Half 461 462 } 463 }, 464 465 _intersectsWithPointer: function(item) { 466 467 var isOverElementHeight = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height), 468 isOverElementWidth = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width), 469 isOverElement = isOverElementHeight && isOverElementWidth, 470 verticalDirection = this._getDragVerticalDirection(), 471 horizontalDirection = this._getDragHorizontalDirection(); 472 473 if (!isOverElement) 474 return false; 475 476 return this.floating ? 477 ( ((horizontalDirection && horizontalDirection == "right") || verticalDirection == "down") ? 2 : 1 ) 478 : ( verticalDirection && (verticalDirection == "down" ? 2 : 1) ); 479 480 }, 481 482 _intersectsWithSides: function(item) { 483 484 var isOverBottomHalf = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height), 485 isOverRightHalf = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left + (item.width/2), item.width), 486 verticalDirection = this._getDragVerticalDirection(), 487 horizontalDirection = this._getDragHorizontalDirection(); 488 489 if (this.floating && horizontalDirection) { 490 return ((horizontalDirection == "right" && isOverRightHalf) || (horizontalDirection == "left" && !isOverRightHalf)); 491 } else { 492 return verticalDirection && ((verticalDirection == "down" && isOverBottomHalf) || (verticalDirection == "up" && !isOverBottomHalf)); 493 } 494 495 }, 496 497 _getDragVerticalDirection: function() { 498 var delta = this.positionAbs.top - this.lastPositionAbs.top; 499 return delta != 0 && (delta > 0 ? "down" : "up"); 500 }, 501 502 _getDragHorizontalDirection: function() { 503 var delta = this.positionAbs.left - this.lastPositionAbs.left; 504 return delta != 0 && (delta > 0 ? "right" : "left"); 505 }, 506 507 refresh: function(event) { 508 this._refreshItems(event); 509 this.refreshPositions(); 510 return this; 511 }, 512 513 _connectWith: function() { 514 var options = this.options; 515 return options.connectWith.constructor == String
516 ? [options.connectWith] 517 : options.connectWith; 518 }, 519 520 _getItemsAsjQuery: function(connected) { 521 522 var self = this; 523 var items = []; 524 var queries = []; 525 var connectWith = this._connectWith(); 526 527 if(connectWith && connected) { 528 for (var i = connectWith.length - 1; i >= 0; i--){ 529 var cur = $(connectWith[i]); 530 for (var j = cur.length - 1; j >= 0; j--){ 531 var inst = $.data(cur[j], 'sortable'); 532 if(inst && inst != this && !inst.options.disabled) { 533 queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper").not('.ui-sortable-placeholder'), inst]); 534 } 535 }; 536 }; 537 } 538 539 queries.push([$.isFunction(this.options.items) ? this.options.items.call(this.element, null, { options: this.options, item: this.currentItem }) : $(this.options.items, this.element).not(".ui-sortable-helper").not('.ui-sortable-placeholder'), this]); 540 541 for (var i = queries.length - 1; i >= 0; i--){ 542 queries[i][0].each(function() { 543 items.push(this); 544 }); 545 }; 546 547 return $(items); 548 549 }, 550 551 _removeCurrentsFromItems: function() { 552 553 var list = this.currentItem.find(":data(sortable-item)"); 554 555 for (var i=0; i < this.items.length; i++) { 556 557 for (var j=0; j < list.length; j++) { 558 if(list[j] == this.items[i].item[0]) 559 this.items.splice(i,1); 560 }; 561 562 }; 563 564 }, 565 566 _refreshItems: function(event) { 567 568 this.items = []; 569 this.containers = [this]; 570 var items = this.items; 571 var self = this; 572 var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]]; 573 var connectWith = this._connectWith(); 574 575 if(connectWith) { 576 for (var i = connectWith.length - 1; i >= 0; i--){ 577 var cur = $(connectWith[i]); 578 for (var j = cur.length - 1; j >= 0; j--){ 579 var inst = $.data(cur[j], 'sortable'); 580 if(inst && inst != this && !inst.options.disabled) { 581 queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element[0], event, { item: this.currentItem }) : $(inst.options.items, inst.element), inst]); 582 this.containers.push(inst); 583 } 584 }; 585 }; 586 } 587 588 for (var i = queries.length - 1; i >= 0; i--) { 589 var targetData = queries[i][1]; 590 var _queries = queries[i][0]; 591 592 for (var j=0, queriesLength = _queries.length; j < queriesLength; j++) { 593 var item = $(_queries[j]); 594 595 item.data('sortable-item', targetData); // Data for target checking (mouse manager) 596 597 items.push({ 598 item: item, 599 instance: targetData, 600 width: 0, height: 0, 601 left: 0, top: 0 602 }); 603 }; 604 }; 605 606 }, 607 608 refreshPositions: function(fast) { 609 610 //This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change 611 if(this.offsetParent && this.helper) { 612 this.offset.parent = this._getParentOffset(); 613 } 614 615 for (var i = this.items.length - 1; i >= 0; i--){ 616 var item = this.items[i]; 617 618 //We ignore calculating positions of all connected containers when we're not over them 619 if(item.instance != this.currentContainer && this.currentContainer && item.item[0] != this.currentItem[0]) 620 continue; 621 622 var t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item; 623 624 if (!fast) { 625 item.width = t.outerWidth(); 626 item.height = t.outerHeight(); 627 } 628 629 var p = t.offset(); 630 item.left = p.left; 631 item.top = p.top; 632 }; 633 634 if(this.options.custom && this.options.custom.refreshContainers
634) { 635 this.options.custom.refreshContainers.call(this); 636 } else { 637 for (var i = this.containers.length - 1; i >= 0; i--){ 638 var p = this.containers[i].element.offset(); 639 this.containers[i].containerCache.left = p.left; 640 this.containers[i].containerCache.top = p.top; 641 this.containers[i].containerCache.width = this.containers[i].element.outerWidth(); 642 this.containers[i].containerCache.height = this.containers[i].element.outerHeight(); 643 }; 644 } 645 646 return this; 647 }, 648 649 _createPlaceholder: function(that) { 650 651 var self = that || this, o = self.options; 652 653 if(!o.placeholder || o.placeholder.constructor == String) { 654 var className = o.placeholder; 655 o.placeholder = { 656 element: function() { 657 658 var el = $(document.createElement(self.currentItem[0].nodeName)) 659 .addClass(className || self.currentItem[0].className+" ui-sortable-placeholder") 660 .removeClass("ui-sortable-helper")[0]; 661 662 if(!className) 663 el.style.visibility = "hidden"; 664 665 return el; 666 }, 667 update: function(container, p) { 668 669 // 1. If a className is set as 'placeholder option, we don't force sizes - the class is responsible for that 670 // 2. The option 'forcePlaceholderSize can be enabled to force it even if a class name is specified 671 if(className && !o.forcePlaceholderSize) return; 672 673 //If the element doesn't have a actual height by itself (without styles coming from a stylesheet), it receives the inline height from the dragged item
674 if(!p.height()) { p.height(self.currentItem.innerHeight() - parseInt(self.currentItem.css('paddingTop')||0, 10) - parseInt(self.currentItem.css('paddingBottom')||0, 10)); }; 675 if(!p.width()) { p.width(self.currentItem.innerWidth() - parseInt(self.currentItem.css('paddingLeft')||0, 10) - parseInt(self.currentItem.css('paddingRight')||0, 10)); }; 676 } 677 }; 678 } 679 680 //Create the placeholder 681 self.placeholder = $(o.placeholder.element.call(self.element, self.currentItem)); 682 683 //Append it after the actual current item 684 self.currentItem.after(self.placeholder); 685 686 //Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317) 687 o.placeholder.update(self, self.placeholder); 688 689 }, 690 691 _contactContainers: function(event) { 692 693 // get innermost container that intersects with item 694 var innermostContainer = null, innermostIndex = null; 695 696 697 for (var i = this.containers.length - 1; i >= 0; i--){ 698 699 // never consider a container that's located within the item itself 700 if($.ui.contains(this.currentItem[0], this.containers[i].element[0])) 701 continue; 702 703 if(this._intersectsWith(this.containers[i].containerCache)) { 704 705 // if we've already found a container and it's more "inner" than this, then continue 706 if(innermostContainer && $.ui.contains(this.containers[i].element[0], innermostContainer.element[0])) 707 continue; 708 709 innermostContainer = this.containers[i]; 710 innermostIndex = i; 711 712 } else { 713 // container doesn't intersect. trigger "out" event if necessary 714 if(this.containers[i].containerCache.over) { 715 this.containers[i]._trigger("out", event, this._uiHash(this)); 716 this.containers[i].containerCache.over = 0; 717 } 718 } 719 720 } 721 722 // if no intersecting containers found, return 723 if(!innermostContainer) return; 724 725 // move the item into the container if it's not there already 726 if(this.containers.length === 1) { 727 this.containers[innermostIndex]._trigger("over", event, this._uiHash(this)); 728 this.containers[innermostIndex].containerCache.over = 1; 729 } else if(this.currentContainer != this.containers[innermostIndex]) { 730 731 //When entering a new container, we will find the item with the least distance and append our item near it 732 var dist = 10000; var itemWithLeastDistance = null; var base = this.positionAbs[this.containers[innermostIndex].floating ? 'left' : 'top']; 733 for (var j = this.items.length - 1; j >= 0; j--) { 734 if(!$.ui.contains(this.containers[innermostIndex].element[0], this.items[j].item[0])) continue; 735 var cur = this.items[j][this.containers[innermostIndex].floating ? 'left' : 'top']; 736 if(Math.abs(cur - base) < dist) { 737 dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j]; 738 } 739 } 740 741 if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled 742 return; 743 744 this.currentContainer = this.containers[innermostIndex]; 745 itemWithLeastDistance ? this._rearrange(event, itemWithLeastDistance, null, true) : this._rearrange(event, null, this.containers[innermostIndex].element, true); 746 this._trigger("change", event, this._uiHash()); 747 this.containers[innermostIndex]._trigger("change", event, this._uiHash(this)); 748 749 //Update the placeholder 750 this.options.placeholder.update(this.currentContainer, this.placeholder); 751 752 this.containers[innermostIndex]._trigger("over", event, this._uiHash(this)); 753 this.containers[innermostIndex].containerCache.over = 1; 754 } 755 756 757 }, 758 759 _createHelper: function(event) { 760 761 var o = this.options; 762 var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper == 'clone' ? this.currentItem.clone() : this.currentItem); 763 764 if(!helper.parents('body').length) //Add the helper to the DOM if that didn't happen already 765 $(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]); 766 767 if(helper[0] == this.currentItem[0]) 768 this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left
768: this.currentItem.css("left") }; 769 770 if(helper[0].style.width == '' || o.forceHelperSize) helper.width(this.currentItem.width()); 771 if(helper[0].style.height == '' || o.forceHelperSize) helper.height(this.currentItem.height()); 772 773 return helper; 774 775 }, 776 777 _adjustOffsetFromHelper: function(obj) { 778 if (typeof obj == 'string') { 779 obj = obj.split(' '); 780 } 781 if ($.isArray(obj)) { 782 obj = {left: +obj[0], top: +obj[1] || 0}; 783 } 784 if ('left' in obj) { 785 this.offset.click.left = obj.left + this.margins.left; 786 } 787 if ('right' in obj) { 788 this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left; 789 } 790 if ('top' in obj) { 791 this.offset.click.top = obj.top + this.margins.top; 792 } 793 if ('bottom' in obj) { 794 this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top; 795 } 796 }, 797 798 _getParentOffset: function() { 799 800 801 //Get the offsetParent and cache its position 802 this.offsetParent = this.helper.offsetParent(); 803 var po = this.offsetParent.offset(); 804 805 // This is a special case where we need to modify a offset calculated on start, since the following happened: 806 // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent 807 // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that 808 // the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag 809 if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) { 810 po.left += this.scrollParent.scrollLeft(); 811 po.top += this.scrollParent.scrollTop(); 812 } 813 814 if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information 815 || (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.browser.msie)) //Ugly IE fix 816 po = { top: 0, left: 0 }; 817 818 return { 819 top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0), 820 left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0) 821 }; 822 823 }, 824 825 _getRelativeOffset: function() { 826 827 if(this.cssPosition == "relative") { 828 var p = this.currentItem.position(); 829 return { 830 top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(), 831 left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft() 832 }; 833 } else { 834 return { top: 0, left: 0 }; 835 } 836 837 }, 838 839 _cacheMargins: function() { 840 this.margins = { 841 left: (parseInt(this.currentItem.css("marginLeft"),10) || 0), 842 top: (parseInt(this.currentItem.css("marginTop"),10) || 0) 843 }; 844 }, 845 846 _cacheHelperProportions: function() { 847 this.helperProportions = { 848 width: this.helper.outerWidth(), 849 height: this.helper.outerHeight() 850 }; 851 }, 852 853 _setContainment: function() { 854 855 var o = this.options; 856 if(o.containment == 'parent') o.containment = this.helper[0].parentNode; 857 if(o.containment == 'document' || o.containment == 'window') this.containment = [ 858 0 - this.offset.relative.left - this.offset.parent.left, 859 0 - this.offset.relative.top - this.offset.parent.top, 860 $(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left, 861 ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top 862 ]; 863 864 if(!(/^(document|window|parent)$/).test(o.containment)) { 865 var ce = $(o.containment)[0]; 866 var co = $(o.containment).offset(); 867 var over = ($(ce).css("overflow") != 'hidden'); 868 869 this.containment = [ 870 co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left, 871 co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top, 872 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, 873 co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),
87310) || 0) - (parseInt($(ce).css("paddingBottom"),10) || 0) - this.helperProportions.height - this.margins.top 874 ]; 875 } 876 877 }, 878 879 _convertPositionTo: function(d, pos) { 880 881 if(!pos) pos = this.position; 882 var mod = d == "absolute" ? 1 : -1; 883 var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName); 884 885 return { 886 top: ( 887 pos.top // The absolute mouse position 888 + this.offset.relative.top * mod // Only for relative positioned nodes: Relative offset from element to offset parent 889 + this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border) 890 - ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod) 891 ), 892 left: ( 893 pos.left // The absolute mouse position 894 + this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent 895 + this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border) 896 - ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod) 897 ) 898 }; 899 900 }, 901 902 _generatePosition: function(event) { 903 904 var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName); 905 906 // This is another very weird special case that only happens for relative elements: 907 // 1. If the css position is relative 908 // 2. and the scroll parent is the document or similar to the offset parent 909 // we have to refresh the relative offset during the scroll so there are no jumps 910 if(this.cssPosition == 'relative' && !(this.scrollParent[0] != document && this.scrollParent[0] != this.offsetParent[0])) { 911 this.offset.relative = this._getRelativeOffset(); 912 } 913 914 var pageX = event.pageX; 915 var pageY = event.pageY; 916 917 /* 918 * - Position constraining - 919 * Constrain the position to a mix of grid, containment. 920 */ 921 922 if(this.originalPosition) { //If we are not dragging yet, we won't check for options 923 924 if(this.containment) { 925 if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left; 926 if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top; 927 if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left; 928 if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top; 929 } 930 931 if(o.grid) { 932 var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1]; 933 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; 934 935 var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0]; 936 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; 937 } 938 939 } 940 941 return { 942 top: ( 943 pageY // The absolute mouse position 944 - this.offset.click.top // Click offset (relative to the element) 945 - this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent 946 - this.offset.parent.top // The offsetParent's offset without borders (offset + border) 947 + ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) )) 948 ), 949 left: ( 950 pageX // The absolute mouse position 951 - this.offset.click.left // Click offset (relative to the element) 952 - this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent 953 - this.offset.parent.left // The offsetParent's offset without borders (offset + border) 954 + ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() )) 955 ) 956 }; 957 958 }, 959 960 _rearrange: function(event, i, a, hardRefresh) { 961 962 a ? a[0].appendChild(this.placeholder[0]) : i.item[0].parentNode.insertBefore(this.placeholder[0], (this.direction == 'down' ? i.item[0] : i.item[0].nextSibling)); 963 964 //Various things done here to improve the performance: 965 // 1. we create a setTimeout, that calls refreshPositions 966 // 2. on the instance, we have a counter variable, that get's higher after every append 967 // 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same 968 // 4. this lets only the last addition to the timeout stack through 969 this.counter = this.counter ? ++this.counter : 1;
970 var self = this, counter = this.counter; 971 972 window.setTimeout(function() { 973 if(counter == self.counter) self.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove 974 },0); 975 976 }, 977 978 _clear: function(event, noPropagation) { 979 980 this.reverting = false; 981 // We delay all events that have to be triggered to after the point where the placeholder has been removed and 982 // everything else normalized again 983 var delayedTriggers = [], self = this; 984 985 // We first have to update the dom position of the actual currentItem 986 // Note: don't do it if the current item is already removed (by a user), or it gets reappended (see #4088) 987 if(!this._noFinalSort && this.currentItem.parent().length) this.placeholder.before(this.currentItem); 988 this._noFinalSort = null; 989 990 if(this.helper[0] == this.currentItem[0]) { 991 for(var i in this._storedCSS) { 992 if(this._storedCSS[i] == 'auto' || this._storedCSS[i] == 'static') this._storedCSS[i] = ''; 993 } 994 this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper"); 995 } else { 996 this.currentItem.show(); 997 } 998 999 if(this.fromOutside && !noPropagation) delayedTriggers.push(function(event) { this._trigger("receive", event, this._uiHash(this.fromOutside)); }); 1000 if((this.fromOutside || this.domPosition.prev != this.currentItem.prev().not(".ui-sortable-helper")[0] || this.domPosition.parent != this.currentItem.parent()[0]) && !noPropagation) delayedTriggers.push(function(event) { this._trigger("update", event, this._uiHash()); }); //Trigger update callback if the DOM position has changed 1001 if(!$.ui.contains(this.element[0], this.currentItem[0])) { //Node was moved out of the current element 1002 if(!noPropagation) delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); }); 1003 for (var i = this.containers.length - 1; i >= 0; i--){ 1004 if($.ui.contains(this.containers[i].element[0], this.currentItem[0]) && !noPropagation) { 1005 delayedTriggers.push((function(c) { return function(event) { c._trigger("receive", event, this._uiHash(this)); }; }).call(this, this.containers[i])); 1006 delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this)); }; }).call(this, this.containers[i])); 1007 } 1008 }; 1009 }; 1010 1011 //Post events to containers 1012 for (var i = this.containers.length - 1; i >= 0; i--){ 1013 if(!noPropagation) delayedTriggers.push((function(c) { return function(event) { c._trigger("deactivate", event, this._uiHash(this)); }; }).call(this, this.containers[i])); 1014 if(this.containers[i].containerCache.over) { 1015 delayedTriggers.push((function(c) { return function(event) { c._trigger("out", event, this._uiHash(this)); }; }).call(this, this.containers[i])); 1016 this.containers[i].containerCache.over = 0; 1017 } 1018 } 1019 1020 //Do what was originally in plugins 1021 if(this._storedCursor) $('body').css("cursor", this._storedCursor); //Reset cursor 1022 if(this._storedOpacity) this.helper.css("opacity", this._storedOpacity); //Reset opacity 1023 if(this._storedZIndex) this.helper.css("zIndex", this._storedZIndex == 'auto' ? '' : this._storedZIndex); //Reset z-index 1024 1025 this.dragging = false; 1026 if(this.cancelHelperRemoval) { 1027 if(!noPropagation) { 1028 this._trigger("beforeStop", event, this._uiHash()); 1029 for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events 1030 this._trigger("stop", event, this._uiHash()); 1031 } 1032 return false; 1033 } 1034 1035 if(!noPropagation) this._trigger("beforeStop", event, this._uiHash()); 1036 1037 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node! 1038 this.placeholder[0].parentNode.removeChild(this.placeholder[0]); 1039 1040 if(this.helper[0] != this.currentItem[0]) this.helper.remove(); this.helper = null; 1041 1042 if(!noPropagation) { 1043 for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events 1044 this._trigger("stop", event, this._uiHash()); 1045 } 1046 1047 this.fromOutside = false;
1048 return true; 1049 1050 }, 1051 1052 _trigger: function() { 1053 if ($.Widget.prototype._trigger.apply(this, arguments) === false) { 1054 this.cancel(); 1055 } 1056 }, 1057 1058 _uiHash: function(inst) { 1059 var self = inst || this; 1060 return { 1061 helper: self.helper, 1062 placeholder: self.placeholder || $([]), 1063 position: self.position, 1064 originalPosition: self.originalPosition, 1065 offset: self.positionAbs, 1066 item: self.currentItem, 1067 sender: inst ? inst.element : null 1068 }; 1069 } 1070 1071}); 1072 1073$.extend($.ui.sortable, { 1074 version: "1.8.16" 1075}); 1076 1077})(jQuery);
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.