New file |
0,0 → 1,1071 |
/* |
* jQuery UI Sortable 1.8.5 |
* |
* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about) |
* Dual licensed under the MIT or GPL Version 2 licenses. |
* http://jquery.org/license |
* |
* http://docs.jquery.com/UI/Sortables |
* |
* Depends: |
* jquery.ui.core.js |
* jquery.ui.mouse.js |
* jquery.ui.widget.js |
*/ |
(function( $, undefined ) { |
|
$.widget("ui.sortable", $.ui.mouse, { |
widgetEventPrefix: "sort", |
options: { |
appendTo: "parent", |
axis: false, |
connectWith: false, |
containment: false, |
cursor: 'auto', |
cursorAt: false, |
dropOnEmpty: true, |
forcePlaceholderSize: false, |
forceHelperSize: false, |
grid: false, |
handle: false, |
helper: "original", |
items: '> *', |
opacity: false, |
placeholder: false, |
revert: false, |
scroll: true, |
scrollSensitivity: 20, |
scrollSpeed: 20, |
scope: "default", |
tolerance: "intersect", |
zIndex: 1000 |
}, |
_create: function() { |
|
var o = this.options; |
this.containerCache = {}; |
this.element.addClass("ui-sortable"); |
|
//Get the items |
this.refresh(); |
|
//Let's determine if the items are floating |
this.floating = this.items.length ? (/left|right/).test(this.items[0].item.css('float')) : false; |
|
//Let's determine the parent's offset |
this.offset = this.element.offset(); |
|
//Initialize mouse events for interaction |
this._mouseInit(); |
|
}, |
|
destroy: function() { |
this.element |
.removeClass("ui-sortable ui-sortable-disabled") |
.removeData("sortable") |
.unbind(".sortable"); |
this._mouseDestroy(); |
|
for ( var i = this.items.length - 1; i >= 0; i-- ) |
this.items[i].item.removeData("sortable-item"); |
|
return this; |
}, |
|
_setOption: function(key, value){ |
if ( key === "disabled" ) { |
this.options[ key ] = value; |
|
this.widget() |
[ value ? "addClass" : "removeClass"]( "ui-sortable-disabled" ); |
} else { |
// Don't call widget base _setOption for disable as it adds ui-state-disabled class |
$.Widget.prototype._setOption.apply(this, arguments); |
} |
}, |
|
_mouseCapture: function(event, overrideHandle) { |
|
if (this.reverting) { |
return false; |
} |
|
if(this.options.disabled || this.options.type == 'static') return false; |
|
//We have to refresh the items data once first |
this._refreshItems(event); |
|
//Find out if the clicked node (or one of its parents) is a actual item in this.items |
var currentItem = null, self = this, nodes = $(event.target).parents().each(function() { |
if($.data(this, 'sortable-item') == self) { |
currentItem = $(this); |
return false; |
} |
}); |
if($.data(event.target, 'sortable-item') == self) currentItem = $(event.target); |
|
if(!currentItem) return false; |
if(this.options.handle && !overrideHandle) { |
var validHandle = false; |
|
$(this.options.handle, currentItem).find("*").andSelf().each(function() { if(this == event.target) validHandle = true; }); |
if(!validHandle) return false; |
} |
|
this.currentItem = currentItem; |
this._removeCurrentsFromItems(); |
return true; |
|
}, |
|
_mouseStart: function(event, overrideHandle, noActivation) { |
|
var o = this.options, self = this; |
this.currentContainer = this; |
|
//We only need to call refreshPositions, because the refreshItems call has been moved to mouseCapture |
this.refreshPositions(); |
|
//Create and append the visible helper |
this.helper = this._createHelper(event); |
|
//Cache the helper size |
this._cacheHelperProportions(); |
|
/* |
* - Position generation - |
* This block generates everything position related - it's the core of draggables. |
*/ |
|
//Cache the margins of the original element |
this._cacheMargins(); |
|
//Get the next scrolling parent |
this.scrollParent = this.helper.scrollParent(); |
|
//The element's absolute position on the page minus margins |
this.offset = this.currentItem.offset(); |
this.offset = { |
top: this.offset.top - this.margins.top, |
left: this.offset.left - this.margins.left |
}; |
|
// Only after we got the offset, we can change the helper's position to absolute |
// TODO: Still need to figure out a way to make relative sorting possible |
this.helper.css("position", "absolute"); |
this.cssPosition = this.helper.css("position"); |
|
$.extend(this.offset, { |
click: { //Where the click happened, relative to the element |
left: event.pageX - this.offset.left, |
top: event.pageY - this.offset.top |
}, |
parent: this._getParentOffset(), |
relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper |
}); |
|
//Generate the original position |
this.originalPosition = this._generatePosition(event); |
this.originalPageX = event.pageX; |
this.originalPageY = event.pageY; |
|
//Adjust the mouse offset relative to the helper if 'cursorAt' is supplied |
(o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt)); |
|
//Cache the former DOM position |
this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] }; |
|
//If the helper is not the original, hide the original so it's not playing any role during the drag, won't cause anything bad this way |
if(this.helper[0] != this.currentItem[0]) { |
this.currentItem.hide(); |
} |
|
//Create the placeholder |
this._createPlaceholder(); |
|
//Set a containment if given in the options |
if(o.containment) |
this._setContainment(); |
|
if(o.cursor) { // cursor option |
if ($('body').css("cursor")) this._storedCursor = $('body').css("cursor"); |
$('body').css("cursor", o.cursor); |
} |
|
if(o.opacity) { // opacity option |
if (this.helper.css("opacity")) this._storedOpacity = this.helper.css("opacity"); |
this.helper.css("opacity", o.opacity); |
} |
|
if(o.zIndex) { // zIndex option |
if (this.helper.css("zIndex")) this._storedZIndex = this.helper.css("zIndex"); |
this.helper.css("zIndex", o.zIndex); |
} |
|
//Prepare scrolling |
if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') |
this.overflowOffset = this.scrollParent.offset(); |
|
//Call callbacks |
this._trigger("start", event, this._uiHash()); |
|
//Recache the helper size |
if(!this._preserveHelperProportions) |
this._cacheHelperProportions(); |
|
|
//Post 'activate' events to possible containers |
if(!noActivation) { |
for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i]._trigger("activate", event, self._uiHash(this)); } |
} |
|
//Prepare possible droppables |
if($.ui.ddmanager) |
$.ui.ddmanager.current = this; |
|
if ($.ui.ddmanager && !o.dropBehaviour) |
$.ui.ddmanager.prepareOffsets(this, event); |
|
this.dragging = true; |
|
this.helper.addClass("ui-sortable-helper"); |
this._mouseDrag(event); //Execute the drag once - this causes the helper not to be visible before getting its correct position |
return true; |
|
}, |
|
_mouseDrag: function(event) { |
|
//Compute the helpers position |
this.position = this._generatePosition(event); |
this.positionAbs = this._convertPositionTo("absolute"); |
|
if (!this.lastPositionAbs) { |
this.lastPositionAbs = this.positionAbs; |
} |
|
//Do scrolling |
if(this.options.scroll) { |
var o = this.options, scrolled = false; |
if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') { |
|
if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) |
this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed; |
else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity) |
this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed; |
|
if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) |
this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed; |
else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity) |
this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed; |
|
} else { |
|
if(event.pageY - $(document).scrollTop() < o.scrollSensitivity) |
scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed); |
else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity) |
scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed); |
|
if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity) |
scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed); |
else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity) |
scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed); |
|
} |
|
if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) |
$.ui.ddmanager.prepareOffsets(this, event); |
} |
|
//Regenerate the absolute position used for position checks |
this.positionAbs = this._convertPositionTo("absolute"); |
|
//Set the helper position |
if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px'; |
if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px'; |
|
//Rearrange |
for (var i = this.items.length - 1; i >= 0; i--) { |
|
//Cache variables and intersection, continue if no intersection |
var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item); |
if (!intersection) continue; |
|
if(itemElement != this.currentItem[0] //cannot intersect with itself |
&& this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before |
&& !$.ui.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked |
&& (this.options.type == 'semi-dynamic' ? !$.ui.contains(this.element[0], itemElement) : true) |
//&& itemElement.parentNode == this.placeholder[0].parentNode // only rearrange items within the same container |
) { |
|
this.direction = intersection == 1 ? "down" : "up"; |
|
if (this.options.tolerance == "pointer" || this._intersectsWithSides(item)) { |
this._rearrange(event, item); |
} else { |
break; |
} |
|
this._trigger("change", event, this._uiHash()); |
break; |
} |
} |
|
//Post events to containers |
this._contactContainers(event); |
|
//Interconnect with droppables |
if($.ui.ddmanager) $.ui.ddmanager.drag(this, event); |
|
//Call callbacks |
this._trigger('sort', event, this._uiHash()); |
|
this.lastPositionAbs = this.positionAbs; |
return false; |
|
}, |
|
_mouseStop: function(event, noPropagation) { |
|
if(!event) return; |
|
//If we are using droppables, inform the manager about the drop |
if ($.ui.ddmanager && !this.options.dropBehaviour) |
$.ui.ddmanager.drop(this, event); |
|
if(this.options.revert) { |
var self = this; |
var cur = self.placeholder.offset(); |
|
self.reverting = true; |
|
$(this.helper).animate({ |
left: cur.left - this.offset.parent.left - self.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft), |
top: cur.top - this.offset.parent.top - self.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop) |
}, parseInt(this.options.revert, 10) || 500, function() { |
self._clear(event); |
}); |
} else { |
this._clear(event, noPropagation); |
} |
|
return false; |
|
}, |
|
cancel: function() { |
|
var self = this; |
|
if(this.dragging) { |
|
this._mouseUp(); |
|
if(this.options.helper == "original") |
this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper"); |
else |
this.currentItem.show(); |
|
//Post deactivating events to containers |
for (var i = this.containers.length - 1; i >= 0; i--){ |
this.containers[i]._trigger("deactivate", null, self._uiHash(this)); |
if(this.containers[i].containerCache.over) { |
this.containers[i]._trigger("out", null, self._uiHash(this)); |
this.containers[i].containerCache.over = 0; |
} |
} |
|
} |
|
//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node! |
if(this.placeholder[0].parentNode) this.placeholder[0].parentNode.removeChild(this.placeholder[0]); |
if(this.options.helper != "original" && this.helper && this.helper[0].parentNode) this.helper.remove(); |
|
$.extend(this, { |
helper: null, |
dragging: false, |
reverting: false, |
_noFinalSort: null |
}); |
|
if(this.domPosition.prev) { |
$(this.domPosition.prev).after(this.currentItem); |
} else { |
$(this.domPosition.parent).prepend(this.currentItem); |
} |
|
return this; |
|
}, |
|
serialize: function(o) { |
|
var items = this._getItemsAsjQuery(o && o.connected); |
var str = []; o = o || {}; |
|
$(items).each(function() { |
var res = ($(o.item || this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/)); |
if(res) str.push((o.key || res[1]+'[]')+'='+(o.key && o.expression ? res[1] : res[2])); |
}); |
|
if(!str.length && o.key) { |
str.push(o.key + '='); |
} |
|
return str.join('&'); |
|
}, |
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toArray: function(o) { |
|
var items = this._getItemsAsjQuery(o && o.connected); |
var ret = []; o = o || {}; |
|
items.each(function() { ret.push($(o.item || this).attr(o.attribute || 'id') || ''); }); |
return ret; |
|
}, |
|
/* Be careful with the following core functions */ |
_intersectsWith: function(item) { |
|
var x1 = this.positionAbs.left, |
x2 = x1 + this.helperProportions.width, |
y1 = this.positionAbs.top, |
y2 = y1 + this.helperProportions.height; |
|
var l = item.left, |
r = l + item.width, |
t = item.top, |
b = t + item.height; |
|
var dyClick = this.offset.click.top, |
dxClick = this.offset.click.left; |
|
var isOverElement = (y1 + dyClick) > t && (y1 + dyClick) < b && (x1 + dxClick) > l && (x1 + dxClick) < r; |
|
if( this.options.tolerance == "pointer" |
|| this.options.forcePointerForContainers |
|| (this.options.tolerance != "pointer" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height']) |
) { |
return isOverElement; |
} else { |
|
return (l < x1 + (this.helperProportions.width / 2) // Right Half |
&& x2 - (this.helperProportions.width / 2) < r // Left Half |
&& t < y1 + (this.helperProportions.height / 2) // Bottom Half |
&& y2 - (this.helperProportions.height / 2) < b ); // Top Half |
|
} |
}, |
|
_intersectsWithPointer: function(item) { |
|
var isOverElementHeight = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height), |
isOverElementWidth = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width), |
isOverElement = isOverElementHeight && isOverElementWidth, |
verticalDirection = this._getDragVerticalDirection(), |
horizontalDirection = this._getDragHorizontalDirection(); |
|
if (!isOverElement) |
return false; |
|
return this.floating ? |
( ((horizontalDirection && horizontalDirection == "right") || verticalDirection == "down") ? 2 : 1 ) |
: ( verticalDirection && (verticalDirection == "down" ? 2 : 1) ); |
|
}, |
|
_intersectsWithSides: function(item) { |
|
var isOverBottomHalf = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height), |
isOverRightHalf = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left + (item.width/2), item.width), |
verticalDirection = this._getDragVerticalDirection(), |
horizontalDirection = this._getDragHorizontalDirection(); |
|
if (this.floating && horizontalDirection) { |
return ((horizontalDirection == "right" && isOverRightHalf) || (horizontalDirection == "left" && !isOverRightHalf)); |
} else { |
return verticalDirection && ((verticalDirection == "down" && isOverBottomHalf) || (verticalDirection == "up" && !isOverBottomHalf)); |
} |
|
}, |
|
_getDragVerticalDirection: function() { |
var delta = this.positionAbs.top - this.lastPositionAbs.top; |
return delta != 0 && (delta > 0 ? "down" : "up"); |
}, |
|
_getDragHorizontalDirection: function() { |
var delta = this.positionAbs.left - this.lastPositionAbs.left; |
return delta != 0 && (delta > 0 ? "right" : "left"); |
}, |
|
refresh: function(event) { |
this._refreshItems(event); |
this.refreshPositions(); |
return this; |
}, |
|
_connectWith: function() { |
var options = this.options; |
return options.connectWith.constructor == String |
? [options.connectWith] |
: options.connectWith; |
}, |
|
_getItemsAsjQuery: function(connected) { |
|
var self = this; |
var items = []; |
var queries = []; |
var connectWith = this._connectWith(); |
|
if(connectWith && connected) { |
for (var i = connectWith.length - 1; i >= 0; i--){ |
var cur = $(connectWith[i]); |
for (var j = cur.length - 1; j >= 0; j--){ |
var inst = $.data(cur[j], 'sortable'); |
if(inst && inst != this && !inst.options.disabled) { |
queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper").not('.ui-sortable-placeholder'), inst]); |
} |
}; |
}; |
} |
|
queries.push([$.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]); |
|
for (var i = queries.length - 1; i >= 0; i--){ |
queries[i][0].each(function() { |
items.push(this); |
}); |
}; |
|
return $(items); |
|
}, |
|
_removeCurrentsFromItems: function() { |
|
var list = this.currentItem.find(":data(sortable-item)"); |
|
for (var i=0; i < this.items.length; i++) { |
|
for (var j=0; j < list.length; j++) { |
if(list[j] == this.items[i].item[0]) |
this.items.splice(i,1); |
}; |
|
}; |
|
}, |
|
_refreshItems: function(event) { |
|
this.items = []; |
this.containers = [this]; |
var items = this.items; |
var self = this; |
var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]]; |
var connectWith = this._connectWith(); |
|
if(connectWith) { |
for (var i = connectWith.length - 1; i >= 0; i--){ |
var cur = $(connectWith[i]); |
for (var j = cur.length - 1; j >= 0; j--){ |
var inst = $.data(cur[j], 'sortable'); |
if(inst && inst != this && !inst.options.disabled) { |
queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element[0], event, { item: this.currentItem }) : $(inst.options.items, inst.element), inst]); |
this.containers.push(inst); |
} |
}; |
}; |
} |
|
for (var i = queries.length - 1; i >= 0; i--) { |
var targetData = queries[i][1]; |
var _queries = queries[i][0]; |
|
for (var j=0, queriesLength = _queries.length; j < queriesLength; j++) { |
var item = $(_queries[j]); |
|
item.data('sortable-item', targetData); // Data for target checking (mouse manager) |
|
items.push({ |
item: item, |
instance: targetData, |
width: 0, height: 0, |
left: 0, top: 0 |
}); |
}; |
}; |
|
}, |
|
refreshPositions: function(fast) { |
|
//This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change |
if(this.offsetParent && this.helper) { |
this.offset.parent = this._getParentOffset(); |
} |
|
for (var i = this.items.length - 1; i >= 0; i--){ |
var item = this.items[i]; |
|
var t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item; |
|
if (!fast) { |
item.width = t.outerWidth(); |
item.height = t.outerHeight(); |
} |
|
var p = t.offset(); |
item.left = p.left; |
item.top = p.top; |
}; |
|
if(this.options.custom && this.options.custom.refreshContainers) { |
this.options.custom.refreshContainers.call(this); |
} else { |
for (var i = this.containers.length - 1; i >= 0; i--){ |
var p = this.containers[i].element.offset(); |
this.containers[i].containerCache.left = p.left; |
this.containers[i].containerCache.top = p.top; |
this.containers[i].containerCache.width = this.containers[i].element.outerWidth(); |
this.containers[i].containerCache.height = this.containers[i].element.outerHeight(); |
}; |
} |
|
return this; |
}, |
|
_createPlaceholder: function(that) { |
|
var self = that || this, o = self.options; |
|
if(!o.placeholder || o.placeholder.constructor == String) { |
var className = o.placeholder; |
o.placeholder = { |
element: function() { |
|
var el = $(document.createElement(self.currentItem[0].nodeName)) |
.addClass(className || self.currentItem[0].className+" ui-sortable-placeholder") |
.removeClass("ui-sortable-helper")[0]; |
|
if(!className) |
el.style.visibility = "hidden"; |
|
return el; |
}, |
update: function(container, p) { |
|
// 1. If a className is set as 'placeholder option, we don't force sizes - the class is responsible for that |
// 2. The option 'forcePlaceholderSize can be enabled to force it even if a class name is specified |
if(className && !o.forcePlaceholderSize) return; |
|
//If the element doesn't have a actual height by itself (without styles coming from a stylesheet), it receives the inline height from the dragged item |
if(!p.height()) { p.height(self.currentItem.innerHeight() - parseInt(self.currentItem.css('paddingTop')||0, 10) - parseInt(self.currentItem.css('paddingBottom')||0, 10)); }; |
if(!p.width()) { p.width(self.currentItem.innerWidth() - parseInt(self.currentItem.css('paddingLeft')||0, 10) - parseInt(self.currentItem.css('paddingRight')||0, 10)); }; |
} |
}; |
} |
|
//Create the placeholder |
self.placeholder = $(o.placeholder.element.call(self.element, self.currentItem)); |
|
//Append it after the actual current item |
self.currentItem.after(self.placeholder); |
|
//Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317) |
o.placeholder.update(self, self.placeholder); |
|
}, |
|
_contactContainers: function(event) { |
|
// get innermost container that intersects with item |
var innermostContainer = null, innermostIndex = null; |
|
|
for (var i = this.containers.length - 1; i >= 0; i--){ |
|
// never consider a container that's located within the item itself |
if($.ui.contains(this.currentItem[0], this.containers[i].element[0])) |
continue; |
|
if(this._intersectsWith(this.containers[i].containerCache)) { |
|
// if we've already found a container and it's more "inner" than this, then continue |
if(innermostContainer && $.ui.contains(this.containers[i].element[0], innermostContainer.element[0])) |
continue; |
|
innermostContainer = this.containers[i]; |
innermostIndex = i; |
|
} else { |
// container doesn't intersect. trigger "out" event if necessary |
if(this.containers[i].containerCache.over) { |
this.containers[i]._trigger("out", event, this._uiHash(this)); |
this.containers[i].containerCache.over = 0; |
} |
} |
|
} |
|
// if no intersecting containers found, return |
if(!innermostContainer) return; |
|
// move the item into the container if it's not there already |
if(this.containers.length === 1) { |
this.containers[innermostIndex]._trigger("over", event, this._uiHash(this)); |
this.containers[innermostIndex].containerCache.over = 1; |
} else if(this.currentContainer != this.containers[innermostIndex]) { |
|
//When entering a new container, we will find the item with the least distance and append our item near it |
var dist = 10000; var itemWithLeastDistance = null; var base = this.positionAbs[this.containers[innermostIndex].floating ? 'left' : 'top']; |
for (var j = this.items.length - 1; j >= 0; j--) { |
if(!$.ui.contains(this.containers[innermostIndex].element[0], this.items[j].item[0])) continue; |
var cur = this.items[j][this.containers[innermostIndex].floating ? 'left' : 'top']; |
if(Math.abs(cur - base) < dist) { |
dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j]; |
} |
} |
|
if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled |
return; |
|
this.currentContainer = this.containers[innermostIndex]; |
itemWithLeastDistance ? this._rearrange(event, itemWithLeastDistance, null, true) : this._rearrange(event, null, this.containers[innermostIndex].element, true); |
this._trigger("change", event, this._uiHash()); |
this.containers[innermostIndex]._trigger("change", event, this._uiHash(this)); |
|
//Update the placeholder |
this.options.placeholder.update(this.currentContainer, this.placeholder); |
|
this.containers[innermostIndex]._trigger("over", event, this._uiHash(this)); |
this.containers[innermostIndex].containerCache.over = 1; |
} |
|
|
}, |
|
_createHelper: function(event) { |
|
var o = this.options; |
var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper == 'clone' ? this.currentItem.clone() : this.currentItem); |
|
if(!helper.parents('body').length) //Add the helper to the DOM if that didn't happen already |
$(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]); |
|
if(helper[0] == this.currentItem[0]) |
this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left") }; |
|
if(helper[0].style.width == '' || o.forceHelperSize) helper.width(this.currentItem.width()); |
if(helper[0].style.height == '' || o.forceHelperSize) helper.height(this.currentItem.height()); |
|
return helper; |
|
}, |
|
_adjustOffsetFromHelper: function(obj) { |
if (typeof obj == 'string') { |
obj = obj.split(' '); |
} |
if ($.isArray(obj)) { |
obj = {left: +obj[0], top: +obj[1] || 0}; |
} |
if ('left' in obj) { |
this.offset.click.left = obj.left + this.margins.left; |
} |
if ('right' in obj) { |
this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left; |
} |
if ('top' in obj) { |
this.offset.click.top = obj.top + this.margins.top; |
} |
if ('bottom' in obj) { |
this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top; |
} |
}, |
|
_getParentOffset: function() { |
|
|
//Get the offsetParent and cache its position |
this.offsetParent = this.helper.offsetParent(); |
var po = this.offsetParent.offset(); |
|
// This is a special case where we need to modify a offset calculated on start, since the following happened: |
// 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent |
// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that |
// the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag |
if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) { |
po.left += this.scrollParent.scrollLeft(); |
po.top += this.scrollParent.scrollTop(); |
} |
|
if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information |
|| (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.browser.msie)) //Ugly IE fix |
po = { top: 0, left: 0 }; |
|
return { |
top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0), |
left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0) |
}; |
|
}, |
|
_getRelativeOffset: function() { |
|
if(this.cssPosition == "relative") { |
var p = this.currentItem.position(); |
return { |
top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(), |
left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft() |
}; |
} else { |
return { top: 0, left: 0 }; |
} |
|
}, |
|
_cacheMargins: function() { |
this.margins = { |
left: (parseInt(this.currentItem.css("marginLeft"),10) || 0), |
top: (parseInt(this.currentItem.css("marginTop"),10) || 0) |
}; |
}, |
|
_cacheHelperProportions: function() { |
this.helperProportions = { |
width: this.helper.outerWidth(), |
height: this.helper.outerHeight() |
}; |
}, |
|
_setContainment: function() { |
|
var o = this.options; |
if(o.containment == 'parent') o.containment = this.helper[0].parentNode; |
if(o.containment == 'document' || o.containment == 'window') this.containment = [ |
0 - this.offset.relative.left - this.offset.parent.left, |
0 - this.offset.relative.top - this.offset.parent.top, |
$(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left, |
($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top |
]; |
|
if(!(/^(document|window|parent)$/).test(o.containment)) { |
var ce = $(o.containment)[0]; |
var co = $(o.containment).offset(); |
var over = ($(ce).css("overflow") != 'hidden'); |
|
this.containment = [ |
co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left, |
co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top, |
co.left+(over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - (parseInt($(ce).css("paddingRight"),10) || 0) - this.helperProportions.width - this.margins.left, |
co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - (parseInt($(ce).css("paddingBottom"),10) || 0) - this.helperProportions.height - this.margins.top |
]; |
} |
|
}, |
|
_convertPositionTo: function(d, pos) { |
|
if(!pos) pos = this.position; |
var mod = d == "absolute" ? 1 : -1; |
var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName); |
|
return { |
top: ( |
pos.top // The absolute mouse position |
+ this.offset.relative.top * mod // Only for relative positioned nodes: Relative offset from element to offset parent |
+ this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border) |
- ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod) |
), |
left: ( |
pos.left // The absolute mouse position |
+ this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent |
+ this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border) |
- ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod) |
) |
}; |
|
}, |
|
_generatePosition: function(event) { |
|
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); |
|
// This is another very weird special case that only happens for relative elements: |
// 1. If the css position is relative |
// 2. and the scroll parent is the document or similar to the offset parent |
// we have to refresh the relative offset during the scroll so there are no jumps |
if(this.cssPosition == 'relative' && !(this.scrollParent[0] != document && this.scrollParent[0] != this.offsetParent[0])) { |
this.offset.relative = this._getRelativeOffset(); |
} |
|
var pageX = event.pageX; |
var pageY = event.pageY; |
|
/* |
* - Position constraining - |
* Constrain the position to a mix of grid, containment. |
*/ |
|
if(this.originalPosition) { //If we are not dragging yet, we won't check for options |
|
if(this.containment) { |
if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left; |
if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top; |
if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left; |
if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top; |
} |
|
if(o.grid) { |
var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1]; |
pageY = this.containment ? (!(top - this.offset.click.top < this.containment[1] || top - this.offset.click.top > this.containment[3]) ? top : (!(top - this.offset.click.top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top; |
|
var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0]; |
pageX = this.containment ? (!(left - this.offset.click.left < this.containment[0] || left - this.offset.click.left > this.containment[2]) ? left : (!(left - this.offset.click.left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left; |
} |
|
} |
|
return { |
top: ( |
pageY // The absolute mouse position |
- this.offset.click.top // Click offset (relative to the element) |
- this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent |
- this.offset.parent.top // The offsetParent's offset without borders (offset + border) |
+ ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) )) |
), |
left: ( |
pageX // The absolute mouse position |
- this.offset.click.left // Click offset (relative to the element) |
- this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent |
- this.offset.parent.left // The offsetParent's offset without borders (offset + border) |
+ ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() )) |
) |
}; |
|
}, |
|
_rearrange: function(event, i, a, hardRefresh) { |
|
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)); |
|
//Various things done here to improve the performance: |
// 1. we create a setTimeout, that calls refreshPositions |
// 2. on the instance, we have a counter variable, that get's higher after every append |
// 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same |
// 4. this lets only the last addition to the timeout stack through |
this.counter = this.counter ? ++this.counter : 1; |
var self = this, counter = this.counter; |
|
window.setTimeout(function() { |
if(counter == self.counter) self.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove |
},0); |
|
}, |
|
_clear: function(event, noPropagation) { |
|
this.reverting = false; |
// We delay all events that have to be triggered to after the point where the placeholder has been removed and |
// everything else normalized again |
var delayedTriggers = [], self = this; |
|
// We first have to update the dom position of the actual currentItem |
// Note: don't do it if the current item is already removed (by a user), or it gets reappended (see #4088) |
if(!this._noFinalSort && this.currentItem[0].parentNode) this.placeholder.before(this.currentItem); |
this._noFinalSort = null; |
|
if(this.helper[0] == this.currentItem[0]) { |
for(var i in this._storedCSS) { |
if(this._storedCSS[i] == 'auto' || this._storedCSS[i] == 'static') this._storedCSS[i] = ''; |
} |
this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper"); |
} else { |
this.currentItem.show(); |
} |
|
if(this.fromOutside && !noPropagation) delayedTriggers.push(function(event) { this._trigger("receive", event, this._uiHash(this.fromOutside)); }); |
if((this.fromOutside || this.domPosition.prev != this.currentItem.prev().not(".ui-sortable-helper")[0] || this.domPosition.parent != this.currentItem.parent()[0]) && !noPropagation) delayedTriggers.push(function(event) { this._trigger("update", event, this._uiHash()); }); //Trigger update callback if the DOM position has changed |
if(!$.ui.contains(this.element[0], this.currentItem[0])) { //Node was moved out of the current element |
if(!noPropagation) delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); }); |
for (var i = this.containers.length - 1; i >= 0; i--){ |
if($.ui.contains(this.containers[i].element[0], this.currentItem[0]) && !noPropagation) { |
delayedTriggers.push((function(c) { return function(event) { c._trigger("receive", event, this._uiHash(this)); }; }).call(this, this.containers[i])); |
delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this)); }; }).call(this, this.containers[i])); |
} |
}; |
}; |
|
//Post events to containers |
for (var i = this.containers.length - 1; i >= 0; i--){ |
if(!noPropagation) delayedTriggers.push((function(c) { return function(event) { c._trigger("deactivate", event, this._uiHash(this)); }; }).call(this, this.containers[i])); |
if(this.containers[i].containerCache.over) { |
delayedTriggers.push((function(c) { return function(event) { c._trigger("out", event, this._uiHash(this)); }; }).call(this, this.containers[i])); |
this.containers[i].containerCache.over = 0; |
} |
} |
|
//Do what was originally in plugins |
if(this._storedCursor) $('body').css("cursor", this._storedCursor); //Reset cursor |
if(this._storedOpacity) this.helper.css("opacity", this._storedOpacity); //Reset opacity |
if(this._storedZIndex) this.helper.css("zIndex", this._storedZIndex == 'auto' ? '' : this._storedZIndex); //Reset z-index |
|
this.dragging = false; |
if(this.cancelHelperRemoval) { |
if(!noPropagation) { |
this._trigger("beforeStop", event, this._uiHash()); |
for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events |
this._trigger("stop", event, this._uiHash()); |
} |
return false; |
} |
|
if(!noPropagation) this._trigger("beforeStop", event, this._uiHash()); |
|
//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node! |
this.placeholder[0].parentNode.removeChild(this.placeholder[0]); |
|
if(this.helper[0] != this.currentItem[0]) this.helper.remove(); this.helper = null; |
|
if(!noPropagation) { |
for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events |
this._trigger("stop", event, this._uiHash()); |
} |
|
this.fromOutside = false; |
return true; |
|
}, |
|
_trigger: function() { |
if ($.Widget.prototype._trigger.apply(this, arguments) === false) { |
this.cancel(); |
} |
}, |
|
_uiHash: function(inst) { |
var self = inst || this; |
return { |
helper: self.helper, |
placeholder: self.placeholder || $([]), |
position: self.position, |
originalPosition: self.originalPosition, |
offset: self.positionAbs, |
item: self.currentItem, |
sender: inst ? inst.element : null |
}; |
} |
|
}); |
|
$.extend($.ui.sortable, { |
version: "1.8.5" |
}); |
|
})(jQuery); |