silverstripe-framework/thirdparty/jquery-ui/jquery.ui.sortable.js
Ingo Schommer 26b52dd772 API CHANGE Upgraded jQuery UI from v1.6rc1 (r687) to v1.8rc3. This release prefixes all *.js and *.css files with 'jquery', so ui.core.js is now called jquery.ui.core.js.
API CHANGE Upgraded jQuery UI themes from v1.6rc1 to v1.8rc3. Removed 'flora' and 'default' themes, replaced with the 'base' and 'smoothness' themes found in the default distribution

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/branches/2.4@100842 467b73ca-7a2a-4603-9d3b-597d59a354a9
2011-02-02 14:18:53 +13:00

1053 lines
38 KiB
JavaScript
Executable File

/*
* jQuery UI Sortable 1.8rc3
*
* Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* http://docs.jquery.com/UI/Sortables
*
* Depends:
* jquery.ui.core.js
* jquery.ui.mouse.js
* jquery.ui.widget.js
*/
(function($) {
$.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;
},
_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]));
});
return str.join('&');
},
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 && $.ui.contains(this.containers[i].element[0], innermostContainer.element[0]))
continue;
innermostContainer = this.containers[i];
innermostIndex = i;
} else {
// container doesn't intersect. trigger "out" event if necessary
if(this.containers[i].containerCache.over) {
this.containers[i]._trigger("out", event, this._uiHash(this));
this.containers[i].containerCache.over = 0;
}
}
}
// if no intersecting containers found, return
if(!innermostContainer) return;
// move the item into the container if it's not there already
if(this.currentContainer != this.containers[innermostIndex]) {
//When entering a new container, we will find the item with the least distance and append our item near it
var dist = 10000; var itemWithLeastDistance = null; var base = this.positionAbs[this.containers[innermostIndex].floating ? 'left' : 'top'];
for (var j = this.items.length - 1; j >= 0; j--) {
if(!$.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: "1.8rc3"
});
})(jQuery);