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1 /* 2 * jQuery UI Sortable 1.7.2 3 * 4 * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about) 5 * Dual licensed under the MIT (MIT-LICENSE.txt) 6 * and GPL (GPL-LICENSE.txt) licenses. 7 * 8 * http://docs.jquery.com/UI/Sortables 9 * 10 * Depends: 11 * ui.core.js 12 */ 13 (function($) { 14 15 $.widget("ui.sortable", $.extend({}, $.ui.mouse, { 16 _init: function() { 17 18 var o = this.options; 19 this.containerCache = {}; 20 this.element.addClass("ui-sortable"); 21 22 //Get the items 23 this.refresh(); 24 25 //Let's determine if the items are floating 26 this.floating = this.items.length ? (/left|right/).test(this.items[0].item.css('float')) : false; 27 28 //Let's determine the parent's offset 29 this.offset = this.element.offset(); 30 31 //Initialize mouse events for interaction 32 this._mouseInit(); 33 34 }, 35 36 destroy: function() { 37 this.element 38 .removeClass("ui-sortable ui-sortable-disabled") 39 .removeData("sortable") 40 .unbind(".sortable"); 41 this._mouseDestroy(); 42 43 for ( var i = this.items.length - 1; i >= 0; i-- ) 44 this.items[i].item.removeData("sortable-item"); 45 }, 46 47 _mouseCapture: function(event, overrideHandle) { 48 49 if (this.reverting) { 50 return false; 51 } 52 53 if(this.options.disabled || this.options.type == 'static') return false; 54 55 //We have to refresh the items data once first 56 this._refreshItems(event); 57 58 //Find out if the clicked node (or one of its parents) is a actual item in this.items 59 var currentItem = null, self = this, nodes = $(event.target).parents().each(function() { 60 if($.data(this, 'sortable-item') == self) { 61 currentItem = $(this); 62 return false; 63 } 64 }); 65 if($.data(event.target, 'sortable-item') == self) currentItem = $(event.target); 66 67 if(!currentItem) return false; 68 if(this.options.handle && !overrideHandle) { 69 var validHandle = false; 70 71 $(this.options.handle, currentItem).find("*").andSelf().each(function() { if(this == event.target) validHandle = true; }); 72 if(!validHandle) return false; 73 } 74 75 this.currentItem = currentItem; 76 this._removeCurrentsFromItems(); 77 return true; 78 79 }, 80 81 _mouseStart: function(event, overrideHandle, noActivation) { 82 83 var o = this.options, self = this; 84 this.currentContainer = this; 85 86 //We only need to call refreshPositions, because the refreshItems call has been moved to mouseCapture 87 this.refreshPositions(); 88 89 //Create and append the visible helper 90 this.helper = this._createHelper(event); 91 92 //Cache the helper size 93 this._cacheHelperProportions(); 94 95 /* 96 * - Position generation - 97 * This block generates everything position related - it's the core of draggables. 98 */ 99 100 //Cache the margins of the original element 101 this._cacheMargins(); 102 103 //Get the next scrolling parent 104 this.scrollParent = this.helper.scrollParent(); 105 106 //The element's absolute position on the page minus margins 107 this.offset = this.currentItem.offset(); 108 this.offset = { 109 top: this.offset.top - this.margins.top, 110 left: this.offset.left - this.margins.left 111 }; 112 113 // Only after we got the offset, we can change the helper's position to absolute 114 // TODO: Still need to figure out a way to make relative sorting possible 115 this.helper.css("position", "absolute"); 116 this.cssPosition = this.helper.css("position"); 117 118 $.extend(this.offset, { 119 click: { //Where the click happened, relative to the element 120 left: event.pageX - this.offset.left, 121 top: event.pageY - this.offset.top 122 }, 123 parent: this._getParentOffset(), 124 relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper 125 }); 126 127 //Generate the original position 128 this.originalPosition = this._generatePosition(event); 129 this.originalPageX = event.pageX; 130 this.originalPageY = event.pageY; 131 132 //Adjust the mouse offset relative to the helper if 'cursorAt' is supplied 133 if(o.cursorAt) 134 this._adjustOffsetFromHelper(o.cursorAt); 135 136 //Cache the former DOM position 137 this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] }; 138 139 //If the helper is not the original, hide the original so it's not playing any role during the drag, won't cause anything bad this way 140 if(this.helper[0] != this.currentItem[0]) { 141 this.currentItem.hide(); 142 } 143 144 //Create the placeholder 145 this._createPlaceholder(); 146 147 //Set a containment if given in the options 148 if(o.containment) 149 this._setContainment(); 150 151 if(o.cursor) { // cursor option 152 if ($('body').css("cursor")) this._storedCursor = $('body').css("cursor"); 153 $('body').css("cursor", o.cursor); 154 } 155 156 if(o.opacity) { // opacity option 157 if (this.helper.css("opacity")) this._storedOpacity = this.helper.css("opacity"); 158 this.helper.css("opacity", o.opacity); 159 } 160 161 if(o.zIndex) { // zIndex option 162 if (this.helper.css("zIndex")) this._storedZIndex = this.helper.css("zIndex"); 163 this.helper.css("zIndex", o.zIndex); 164 } 165 166 //Prepare scrolling 167 if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') 168 this.overflowOffset = this.scrollParent.offset(); 169 170 //Call callbacks 171 this._trigger("start", event, this._uiHash()); 172 173 //Recache the helper size 174 if(!this._preserveHelperProportions) 175 this._cacheHelperProportions(); 176 177 178 //Post 'activate' events to possible containers 179 if(!noActivation) { 180 for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i]._trigger("activate", event, self._uiHash(this)); } 181 } 182 183 //Prepare possible droppables 184 if($.ui.ddmanager) 185 $.ui.ddmanager.current = this; 186 187 if ($.ui.ddmanager && !o.dropBehaviour) 188 $.ui.ddmanager.prepareOffsets(this, event); 189 190 this.dragging = true; 191 192 this.helper.addClass("ui-sortable-helper"); 193 this._mouseDrag(event); //Execute the drag once - this causes the helper not to be visible before getting its correct position 194 return true; 195 196 }, 197 198 _mouseDrag: function(event) { 199 200 //Compute the helpers position 201 this.position = this._generatePosition(event); 202 this.positionAbs = this._convertPositionTo("absolute"); 203 204 if (!this.lastPositionAbs) { 205 this.lastPositionAbs = this.positionAbs; 206 } 207 208 //Do scrolling 209 if(this.options.scroll) { 210 var o = this.options, scrolled = false; 211 if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') { 212 213 if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) 214 this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed; 215 else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity) 216 this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed; 217 218 if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) 219 this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed; 220 else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity) 221 this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed; 222 223 } else { 224 225 if(event.pageY - $(document).scrollTop() < o.scrollSensitivity) 226 scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed); 227 else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity) 228 scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed); 229 230 if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity) 231 scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed); 232 else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity) 233 scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed); 234 235 } 236 237 if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) 238 $.ui.ddmanager.prepareOffsets(this, event); 239 } 240 241 //Regenerate the absolute position used for position checks 242 this.positionAbs = this._convertPositionTo("absolute"); 243 244 //Set the helper position 245 if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px'; 246 if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px'; 247 248 //Rearrange 249 for (var i = this.items.length - 1; i >= 0; i--) { 250 251 //Cache variables and intersection, continue if no intersection 252 var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item); 253 if (!intersection) continue; 254 255 if(itemElement != this.currentItem[0] //cannot intersect with itself 256 && this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before 257 && !$.ui.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked 258 && (this.options.type == 'semi-dynamic' ? !$.ui.contains(this.element[0], itemElement) : true) 259 ) { 260 261 this.direction = intersection == 1 ? "down" : "up"; 262 263 if (this.options.tolerance == "pointer" || this._intersectsWithSides(item)) { 264 this._rearrange(event, item); 265 } else { 266 break; 267 } 268 269 this._trigger("change", event, this._uiHash()); 270 break; 271 } 272 } 273 274 //Post events to containers 275 this._contactContainers(event); 276 277 //Interconnect with droppables 278 if($.ui.ddmanager) $.ui.ddmanager.drag(this, event); 279 280 //Call callbacks 281 this._trigger('sort', event, this._uiHash()); 282 283 this.lastPositionAbs = this.positionAbs; 284 return false; 285 286 }, 287 288 _mouseStop: function(event, noPropagation) { 289 290 if(!event) return; 291 292 //If we are using droppables, inform the manager about the drop 293 if ($.ui.ddmanager && !this.options.dropBehaviour) 294 $.ui.ddmanager.drop(this, event); 295 296 if(this.options.revert) { 297 var self = this; 298 var cur = self.placeholder.offset(); 299 300 self.reverting = true; 301 302 $(this.helper).animate({ 303 left: cur.left - this.offset.parent.left - self.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft), 304 top: cur.top - this.offset.parent.top - self.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop) 305 }, parseInt(this.options.revert, 10) || 500, function() { 306 self._clear(event); 307 }); 308 } else { 309 this._clear(event, noPropagation); 310 } 311 312 return false; 313 314 }, 315 316 cancel: function() { 317 318 var self = this; 319 320 if(this.dragging) { 321 322 this._mouseUp(); 323 324 if(this.options.helper == "original") 325 this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper"); 326 else 327 this.currentItem.show(); 328 329 //Post deactivating events to containers 330 for (var i = this.containers.length - 1; i >= 0; i--){ 331 this.containers[i]._trigger("deactivate", null, self._uiHash(this)); 332 if(this.containers[i].containerCache.over) { 333 this.containers[i]._trigger("out", null, self._uiHash(this)); 334 this.containers[i].containerCache.over = 0; 335 } 336 } 337 338 } 339 340 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node! 341 if(this.placeholder[0].parentNode) this.placeholder[0].parentNode.removeChild(this.placeholder[0]); 342 if(this.options.helper != "original" && this.helper && this.helper[0].parentNode) this.helper.remove(); 343 344 $.extend(this, { 345 helper: null, 346 dragging: false, 347 reverting: false, 348 _noFinalSort: null 349 }); 350 351 if(this.domPosition.prev) { 352 $(this.domPosition.prev).after(this.currentItem); 353 } else { 354 $(this.domPosition.parent).prepend(this.currentItem); 355 } 356 357 return true; 358 359 }, 360 361 serialize: function(o) { 362 363 var items = this._getItemsAsjQuery(o && o.connected); 364 var str = []; o = o || {}; 365 366 $(items).each(function() { 367 var res = ($(o.item || this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/)); 368 if(res) str.push((o.key || res[1]+'[]')+'='+(o.key && o.expression ? res[1] : res[2])); 369 }); 370 371 return str.join('&'); 372 373 }, 374 375 toArray: function(o) { 376 377 var items = this._getItemsAsjQuery(o && o.connected); 378 var ret = []; o = o || {}; 379 380 items.each(function() { ret.push($(o.item || this).attr(o.attribute || 'id') || ''); }); 381 return ret; 382 383 }, 384 385 /* Be careful with the following core functions */ 386 _intersectsWith: function(item) { 387 388 var x1 = this.positionAbs.left, 389 x2 = x1 + this.helperProportions.width, 390 y1 = this.positionAbs.top, 391 y2 = y1 + this.helperProportions.height; 392 393 var l = item.left, 394 r = l + item.width, 395 t = item.top, 396 b = t + item.height; 397 398 var dyClick = this.offset.click.top, 399 dxClick = this.offset.click.left; 400 401 var isOverElement = (y1 + dyClick) > t && (y1 + dyClick) < b && (x1 + dxClick) > l && (x1 + dxClick) < r; 402 403 if( this.options.tolerance == "pointer" 404 || this.options.forcePointerForContainers 405 || (this.options.tolerance != "pointer" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height']) 406 ) { 407 return isOverElement; 408 } else { 409 410 return (l < x1 + (this.helperProportions.width / 2) // Right Half 411 && x2 - (this.helperProportions.width / 2) < r // Left Half 412 && t < y1 + (this.helperProportions.height / 2) // Bottom Half 413 && y2 - (this.helperProportions.height / 2) < b ); // Top Half 414 415 } 416 }, 417 418 _intersectsWithPointer: function(item) { 419 420 var isOverElementHeight = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height), 421 isOverElementWidth = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width), 422 isOverElement = isOverElementHeight && isOverElementWidth, 423 verticalDirection = this._getDragVerticalDirection(), 424 horizontalDirection = this._getDragHorizontalDirection(); 425 426 if (!isOverElement) 427 return false; 428 429 return this.floating ? 430 ( ((horizontalDirection && horizontalDirection == "right") || verticalDirection == "down") ? 2 : 1 ) 431 : ( verticalDirection && (verticalDirection == "down" ? 2 : 1) ); 432 433 }, 434 435 _intersectsWithSides: function(item) { 436 437 var isOverBottomHalf = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height), 438 isOverRightHalf = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left + (item.width/2), item.width), 439 verticalDirection = this._getDragVerticalDirection(), 440 horizontalDirection = this._getDragHorizontalDirection(); 441 442 if (this.floating && horizontalDirection) { 443 return ((horizontalDirection == "right" && isOverRightHalf) || (horizontalDirection == "left" && !isOverRightHalf)); 444 } else { 445 return verticalDirection && ((verticalDirection == "down" && isOverBottomHalf) || (verticalDirection == "up" && !isOverBottomHalf)); 446 } 447 448 }, 449 450 _getDragVerticalDirection: function() { 451 var delta = this.positionAbs.top - this.lastPositionAbs.top; 452 return delta != 0 && (delta > 0 ? "down" : "up"); 453 }, 454 455 _getDragHorizontalDirection: function() { 456 var delta = this.positionAbs.left - this.lastPositionAbs.left; 457 return delta != 0 && (delta > 0 ? "right" : "left"); 458 }, 459 460 refresh: function(event) { 461 this._refreshItems(event); 462 this.refreshPositions(); 463 }, 464 465 _connectWith: function() { 466 var options = this.options; 467 return options.connectWith.constructor == String 468 ? [options.connectWith] 469 : options.connectWith; 470 }, 471 472 _getItemsAsjQuery: function(connected) { 473 474 var self = this; 475 var items = []; 476 var queries = []; 477 var connectWith = this._connectWith(); 478 479 if(connectWith && connected) { 480 for (var i = connectWith.length - 1; i >= 0; i--){ 481 var cur = $(connectWith[i]); 482 for (var j = cur.length - 1; j >= 0; j--){ 483 var inst = $.data(cur[j], 'sortable'); 484 if(inst && inst != this && !inst.options.disabled) { 485 queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper"), inst]); 486 } 487 }; 488 }; 489 } 490 491 queries.push([$.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"), this]); 492 493 for (var i = queries.length - 1; i >= 0; i--){ 494 queries[i][0].each(function() { 495 items.push(this); 496 }); 497 }; 498 499 return $(items); 500 501 }, 502 503 _removeCurrentsFromItems: function() { 504 505 var list = this.currentItem.find(":data(sortable-item)"); 506 507 for (var i=0; i < this.items.length; i++) { 508 509 for (var j=0; j < list.length; j++) { 510 if(list[j] == this.items[i].item[0]) 511 this.items.splice(i,1); 512 }; 513 514 }; 515 516 }, 517 518 _refreshItems: function(event) { 519 520 this.items = []; 521 this.containers = [this]; 522 var items = this.items; 523 var self = this; 524 var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]]; 525 var connectWith = this._connectWith(); 526 527 if(connectWith) { 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[0], event, { item: this.currentItem }) : $(inst.options.items, inst.element), inst]); 534 this.containers.push(inst); 535 } 536 }; 537 }; 538 } 539 540 for (var i = queries.length - 1; i >= 0; i--) { 541 var targetData = queries[i][1]; 542 var _queries = queries[i][0]; 543 544 for (var j=0, queriesLength = _queries.length; j < queriesLength; j++) { 545 var item = $(_queries[j]); 546 547 item.data('sortable-item', targetData); // Data for target checking (mouse manager) 548 549 items.push({ 550 item: item, 551 instance: targetData, 552 width: 0, height: 0, 553 left: 0, top: 0 554 }); 555 }; 556 }; 557 558 }, 559 560 refreshPositions: function(fast) { 561 562 //This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change 563 if(this.offsetParent && this.helper) { 564 this.offset.parent = this._getParentOffset(); 565 } 566 567 for (var i = this.items.length - 1; i >= 0; i--){ 568 var item = this.items[i]; 569 570 //We ignore calculating positions of all connected containers when we're not over them 571 if(item.instance != this.currentContainer && this.currentContainer && item.item[0] != this.currentItem[0]) 572 continue; 573 574 var t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item; 575 576 if (!fast) { 577 item.width = t.outerWidth(); 578 item.height = t.outerHeight(); 579 } 580 581 var p = t.offset(); 582 item.left = p.left; 583 item.top = p.top; 584 }; 585 586 if(this.options.custom && this.options.custom.refreshContainers) { 587 this.options.custom.refreshContainers.call(this); 588 } else { 589 for (var i = this.containers.length - 1; i >= 0; i--){ 590 var p = this.containers[i].element.offset(); 591 this.containers[i].containerCache.left = p.left; 592 this.containers[i].containerCache.top = p.top; 593 this.containers[i].containerCache.width = this.containers[i].element.outerWidth(); 594 this.containers[i].containerCache.height = this.containers[i].element.outerHeight(); 595 }; 596 } 597 598 }, 599 600 _createPlaceholder: function(that) { 601 602 var self = that || this, o = self.options; 603 604 if(!o.placeholder || o.placeholder.constructor == String) { 605 var className = o.placeholder; 606 o.placeholder = { 607 element: function() { 608 609 var el = $(document.createElement(self.currentItem[0].nodeName)) 610 .addClass(className || self.currentItem[0].className+" ui-sortable-placeholder") 611 .removeClass("ui-sortable-helper")[0]; 612 613 if(!className) 614 el.style.visibility = "hidden"; 615 616 return el; 617 }, 618 update: function(container, p) { 619 620 // 1. If a className is set as 'placeholder option, we don't force sizes - the class is responsible for that 621 // 2. The option 'forcePlaceholderSize can be enabled to force it even if a class name is specified 622 if(className && !o.forcePlaceholderSize) return; 623 624 //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 625 if(!p.height()) { p.height(self.currentItem.innerHeight() - parseInt(self.currentItem.css('paddingTop')||0, 10) - parseInt(self.currentItem.css('paddingBottom')||0, 10)); }; 626 if(!p.width()) { p.width(self.currentItem.innerWidth() - parseInt(self.currentItem.css('paddingLeft')||0, 10) - parseInt(self.currentItem.css('paddingRight')||0, 10)); }; 627 } 628 }; 629 } 630 631 //Create the placeholder 632 self.placeholder = $(o.placeholder.element.call(self.element, self.currentItem)); 633 634 //Append it after the actual current item 635 self.currentItem.after(self.placeholder); 636 637 //Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317) 638 o.placeholder.update(self, self.placeholder); 639 640 }, 641 642 _contactContainers: function(event) { 643 for (var i = this.containers.length - 1; i >= 0; i--){ 644 645 if(this._intersectsWith(this.containers[i].containerCache)) { 646 if(!this.containers[i].containerCache.over) { 647 648 if(this.currentContainer != this.containers[i]) { 649 650 //When entering a new container, we will find the item with the least distance and append our item near it 651 var dist = 10000; var itemWithLeastDistance = null; var base = this.positionAbs[this.containers[i].floating ? 'left' : 'top']; 652 for (var j = this.items.length - 1; j >= 0; j--) { 653 if(!$.ui.contains(this.containers[i].element[0], this.items[j].item[0])) continue; 654 var cur = this.items[j][this.containers[i].floating ? 'left' : 'top']; 655 if(Math.abs(cur - base) < dist) { 656 dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j]; 657 } 658 } 659 660 if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled 661 continue; 662 663 this.currentContainer = this.containers[i]; 664 itemWithLeastDistance ? this._rearrange(event, itemWithLeastDistance, null, true) : this._rearrange(event, null, this.containers[i].element, true); 665 this._trigger("change", event, this._uiHash()); 666 this.containers[i]._trigger("change", event, this._uiHash(this)); 667 668 //Update the placeholder 669 this.options.placeholder.update(this.currentContainer, this.placeholder); 670 671 } 672 673 this.containers[i]._trigger("over", event, this._uiHash(this)); 674 this.containers[i].containerCache.over = 1; 675 } 676 } else { 677 if(this.containers[i].containerCache.over) { 678 this.containers[i]._trigger("out", event, this._uiHash(this)); 679 this.containers[i].containerCache.over = 0; 680 } 681 } 682 683 }; 684 }, 685 686 _createHelper: function(event) { 687 688 var o = this.options; 689 var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper == 'clone' ? this.currentItem.clone() : this.currentItem); 690 691 if(!helper.parents('body').length) //Add the helper to the DOM if that didn't happen already 692 $(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]); 693 694 if(helper[0] == this.currentItem[0]) 695 this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left") }; 696 697 if(helper[0].style.width == '' || o.forceHelperSize) helper.width(this.currentItem.width()); 698 if(helper[0].style.height == '' || o.forceHelperSize) helper.height(this.currentItem.height()); 699 700 return helper; 701 702 }, 703 704 _adjustOffsetFromHelper: function(obj) { 705 if(obj.left != undefined) this.offset.click.left = obj.left + this.margins.left; 706 if(obj.right != undefined) this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left; 707 if(obj.top != undefined) this.offset.click.top = obj.top + this.margins.top; 708 if(obj.bottom != undefined) this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top; 709 }, 710 711 _getParentOffset: function() { 712 713 714 //Get the offsetParent and cache its position 715 this.offsetParent = this.helper.offsetParent(); 716 var po = this.offsetParent.offset(); 717 718 // This is a special case where we need to modify a offset calculated on start, since the following happened: 719 // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent 720 // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that 721 // the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag 722 if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) { 723 po.left += this.scrollParent.scrollLeft(); 724 po.top += this.scrollParent.scrollTop(); 725 } 726 727 if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information 728 || (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.browser.msie)) //Ugly IE fix 729 po = { top: 0, left: 0 }; 730 731 return { 732 top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0), 733 left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0) 734 }; 735 736 }, 737 738 _getRelativeOffset: function() { 739 740 if(this.cssPosition == "relative") { 741 var p = this.currentItem.position(); 742 return { 743 top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(), 744 left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft() 745 }; 746 } else { 747 return { top: 0, left: 0 }; 748 } 749 750 }, 751 752 _cacheMargins: function() { 753 this.margins = { 754 left: (parseInt(this.currentItem.css("marginLeft"),10) || 0), 755 top: (parseInt(this.currentItem.css("marginTop"),10) || 0) 756 }; 757 }, 758 759 _cacheHelperProportions: function() { 760 this.helperProportions = { 761 width: this.helper.outerWidth(), 762 height: this.helper.outerHeight() 763 }; 764 }, 765 766 _setContainment: function() { 767 768 var o = this.options; 769 if(o.containment == 'parent') o.containment = this.helper[0].parentNode; 770 if(o.containment == 'document' || o.containment == 'window') this.containment = [ 771 0 - this.offset.relative.left - this.offset.parent.left, 772 0 - this.offset.relative.top - this.offset.parent.top, 773 $(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left, 774 ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top 775 ]; 776 777 if(!(/^(document|window|parent)$/).test(o.containment)) { 778 var ce = $(o.containment)[0]; 779 var co = $(o.containment).offset(); 780 var over = ($(ce).css("overflow") != 'hidden'); 781 782 this.containment = [ 783 co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left, 784 co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top, 785 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, 786 co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - (parseInt($(ce).css("paddingBottom"),10) || 0) - this.helperProportions.height - this.margins.top 787 ]; 788 } 789 790 }, 791 792 _convertPositionTo: function(d, pos) { 793 794 if(!pos) pos = this.position; 795 var mod = d == "absolute" ? 1 : -1; 796 var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName); 797 798 return { 799 top: ( 800 pos.top // The absolute mouse position 801 + this.offset.relative.top * mod // Only for relative positioned nodes: Relative offset from element to offset parent 802 + this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border) 803 - ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod) 804 ), 805 left: ( 806 pos.left // The absolute mouse position 807 + this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent 808 + this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border) 809 - ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod) 810 ) 811 }; 812 813 }, 814 815 _generatePosition: function(event) { 816 817 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); 818 819 // This is another very weird special case that only happens for relative elements: 820 // 1. If the css position is relative 821 // 2. and the scroll parent is the document or similar to the offset parent 822 // we have to refresh the relative offset during the scroll so there are no jumps 823 if(this.cssPosition == 'relative' && !(this.scrollParent[0] != document && this.scrollParent[0] != this.offsetParent[0])) { 824 this.offset.relative = this._getRelativeOffset(); 825 } 826 827 var pageX = event.pageX; 828 var pageY = event.pageY; 829 830 /* 831 * - Position constraining - 832 * Constrain the position to a mix of grid, containment. 833 */ 834 835 if(this.originalPosition) { //If we are not dragging yet, we won't check for options 836 837 if(this.containment) { 838 if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left; 839 if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top; 840 if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left; 841 if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top; 842 } 843 844 if(o.grid) { 845 var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1]; 846 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; 847 848 var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0]; 849 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; 850 } 851 852 } 853 854 return { 855 top: ( 856 pageY // The absolute mouse position 857 - this.offset.click.top // Click offset (relative to the element) 858 - this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent 859 - this.offset.parent.top // The offsetParent's offset without borders (offset + border) 860 + ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) )) 861 ), 862 left: ( 863 pageX // The absolute mouse position 864 - this.offset.click.left // Click offset (relative to the element) 865 - this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent 866 - this.offset.parent.left // The offsetParent's offset without borders (offset + border) 867 + ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() )) 868 ) 869 }; 870 871 }, 872 873 _rearrange: function(event, i, a, hardRefresh) { 874 875 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)); 876 877 //Various things done here to improve the performance: 878 // 1. we create a setTimeout, that calls refreshPositions 879 // 2. on the instance, we have a counter variable, that get's higher after every append 880 // 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same 881 // 4. this lets only the last addition to the timeout stack through 882 this.counter = this.counter ? ++this.counter : 1; 883 var self = this, counter = this.counter; 884 885 window.setTimeout(function() { 886 if(counter == self.counter) self.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove 887 },0); 888 889 }, 890 891 _clear: function(event, noPropagation) { 892 893 this.reverting = false; 894 // We delay all events that have to be triggered to after the point where the placeholder has been removed and 895 // everything else normalized again 896 var delayedTriggers = [], self = this; 897 898 // We first have to update the dom position of the actual currentItem 899 // Note: don't do it if the current item is already removed (by a user), or it gets reappended (see #4088) 900 if(!this._noFinalSort && this.currentItem[0].parentNode) this.placeholder.before(this.currentItem); 901 this._noFinalSort = null; 902 903 if(this.helper[0] == this.currentItem[0]) { 904 for(var i in this._storedCSS) { 905 if(this._storedCSS[i] == 'auto' || this._storedCSS[i] == 'static') this._storedCSS[i] = ''; 906 } 907 this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper"); 908 } else { 909 this.currentItem.show(); 910 } 911 912 if(this.fromOutside && !noPropagation) delayedTriggers.push(function(event) { this._trigger("receive", event, this._uiHash(this.fromOutside)); }); 913 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 914 if(!$.ui.contains(this.element[0], this.currentItem[0])) { //Node was moved out of the current element 915 if(!noPropagation) delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); }); 916 for (var i = this.containers.length - 1; i >= 0; i--){ 917 if($.ui.contains(this.containers[i].element[0], this.currentItem[0]) && !noPropagation) { 918 delayedTriggers.push((function(c) { return function(event) { c._trigger("receive", event, this._uiHash(this)); }; }).call(this, this.containers[i])); 919 delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this)); }; }).call(this, this.containers[i])); 920 } 921 }; 922 }; 923 924 //Post events to containers 925 for (var i = this.containers.length - 1; i >= 0; i--){ 926 if(!noPropagation) delayedTriggers.push((function(c) { return function(event) { c._trigger("deactivate", event, this._uiHash(this)); }; }).call(this, this.containers[i])); 927 if(this.containers[i].containerCache.over) { 928 delayedTriggers.push((function(c) { return function(event) { c._trigger("out", event, this._uiHash(this)); }; }).call(this, this.containers[i])); 929 this.containers[i].containerCache.over = 0; 930 } 931 } 932 933 //Do what was originally in plugins 934 if(this._storedCursor) $('body').css("cursor", this._storedCursor); //Reset cursor 935 if(this._storedOpacity) this.helper.css("opacity", this._storedOpacity); //Reset cursor 936 if(this._storedZIndex) this.helper.css("zIndex", this._storedZIndex == 'auto' ? '' : this._storedZIndex); //Reset z-index 937 938 this.dragging = false; 939 if(this.cancelHelperRemoval) { 940 if(!noPropagation) { 941 this._trigger("beforeStop", event, this._uiHash()); 942 for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events 943 this._trigger("stop", event, this._uiHash()); 944 } 945 return false; 946 } 947 948 if(!noPropagation) this._trigger("beforeStop", event, this._uiHash()); 949 950 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node! 951 this.placeholder[0].parentNode.removeChild(this.placeholder[0]); 952 953 if(this.helper[0] != this.currentItem[0]) this.helper.remove(); this.helper = null; 954 955 if(!noPropagation) { 956 for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events 957 this._trigger("stop", event, this._uiHash()); 958 } 959 960 this.fromOutside = false; 961 return true; 962 963 }, 964 965 _trigger: function() { 966 if ($.widget.prototype._trigger.apply(this, arguments) === false) { 967 this.cancel(); 968 } 969 }, 970 971 _uiHash: function(inst) { 972 var self = inst || this; 973 return { 974 helper: self.helper, 975 placeholder: self.placeholder || $([]), 976 position: self.position, 977 absolutePosition: self.positionAbs, //deprecated 978 offset: self.positionAbs, 979 item: self.currentItem, 980 sender: inst ? inst.element : null 981 }; 982 } 983 984 })); 985 986 $.extend($.ui.sortable, { 987 getter: "serialize toArray", 988 version: "1.7.2", 989 eventPrefix: "sort", 990 defaults: { 991 appendTo: "parent", 992 axis: false, 993 cancel: ":input,option", 994 connectWith: false, 995 containment: false, 996 cursor: 'auto', 997 cursorAt: false, 998 delay: 0, 999 distance: 1, 1000 dropOnEmpty: true, 1001 forcePlaceholderSize: false, 1002 forceHelperSize: false, 1003 grid: false, 1004 handle: false, 1005 helper: "original", 1006 items: '> *', 1007 opacity: false, 1008 placeholder: false, 1009 revert: false, 1010 scroll: true, 1011 scrollSensitivity: 20, 1012 scrollSpeed: 20, 1013 scope: "default", 1014 tolerance: "intersect", 1015 zIndex: 1000 1016 } 1017 }); 1018 1019 })(jQuery);
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| Generated: Thu Mar 24 11:18:33 2011 | Cross-referenced by PHPXref 0.7 |