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/* |
* jQuery UI Draggable 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/Draggables |
* |
* Depends: |
* jquery.ui.core.js |
* jquery.ui.mouse.js |
* jquery.ui.widget.js |
*/ |
(function( $, undefined ) { |
|
$.widget("ui.draggable", $.ui.mouse, { |
widgetEventPrefix: "drag", |
options: { |
addClasses: true, |
appendTo: "parent", |
axis: false, |
connectToSortable: false, |
containment: false, |
cursor: "auto", |
cursorAt: false, |
grid: false, |
handle: false, |
helper: "original", |
iframeFix: false, |
opacity: false, |
refreshPositions: false, |
revert: false, |
revertDuration: 500, |
scope: "default", |
scroll: true, |
scrollSensitivity: 20, |
scrollSpeed: 20, |
snap: false, |
snapMode: "both", |
snapTolerance: 20, |
stack: false, |
zIndex: false |
}, |
_create: function() { |
|
if (this.options.helper == 'original' && !(/^(?:r|a|f)/).test(this.element.css("position"))) |
this.element[0].style.position = 'relative'; |
|
(this.options.addClasses && this.element.addClass("ui-draggable")); |
(this.options.disabled && this.element.addClass("ui-draggable-disabled")); |
|
this._mouseInit(); |
|
}, |
|
destroy: function() { |
if(!this.element.data('draggable')) return; |
this.element |
.removeData("draggable") |
.unbind(".draggable") |
.removeClass("ui-draggable" |
+ " ui-draggable-dragging" |
+ " ui-draggable-disabled"); |
this._mouseDestroy(); |
|
return this; |
}, |
|
_mouseCapture: function(event) { |
|
var o = this.options; |
|
// among others, prevent a drag on a resizable-handle |
if (this.helper || o.disabled || $(event.target).is('.ui-resizable-handle')) |
return false; |
|
//Quit if we're not on a valid handle |
this.handle = this._getHandle(event); |
if (!this.handle) |
return false; |
|
return true; |
|
}, |
|
_mouseStart: function(event) { |
|
var o = this.options; |
|
//Create and append the visible helper |
this.helper = this._createHelper(event); |
|
//Cache the helper size |
this._cacheHelperProportions(); |
|
//If ddmanager is used for droppables, set the global draggable |
if($.ui.ddmanager) |
$.ui.ddmanager.current = this; |
|
/* |
* - Position generation - |
* This block generates everything position related - it's the core of draggables. |
*/ |
|
//Cache the margins of the original element |
this._cacheMargins(); |
|
//Store the helper's css position |
this.cssPosition = this.helper.css("position"); |
this.scrollParent = this.helper.scrollParent(); |
|
//The element's absolute position on the page minus margins |
this.offset = this.positionAbs = this.element.offset(); |
this.offset = { |
top: this.offset.top - this.margins.top, |
left: this.offset.left - this.margins.left |
}; |
|
$.extend(this.offset, { |
click: { //Where the click happened, relative to the element |
left: event.pageX - this.offset.left, |
top: event.pageY - this.offset.top |
}, |
parent: this._getParentOffset(), |
relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper |
}); |
|
//Generate the original position |
this.originalPosition = this.position = this._generatePosition(event); |
this.originalPageX = event.pageX; |
this.originalPageY = event.pageY; |
|
//Adjust the mouse offset relative to the helper if 'cursorAt' is supplied |
(o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt)); |
|
//Set a containment if given in the options |
if(o.containment) |
this._setContainment(); |
|
//Trigger event + callbacks |
if(this._trigger("start", event) === false) { |
this._clear(); |
return false; |
} |
|
//Recache the helper size |
this._cacheHelperProportions(); |
|
//Prepare the droppable offsets |
if ($.ui.ddmanager && !o.dropBehaviour) |
$.ui.ddmanager.prepareOffsets(this, event); |
|
this.helper.addClass("ui-draggable-dragging"); |
this._mouseDrag(event, true); //Execute the drag once - this causes the helper not to be visible before getting its correct position |
return true; |
}, |
|
_mouseDrag: function(event, noPropagation) { |
|
//Compute the helpers position |
this.position = this._generatePosition(event); |
this.positionAbs = this._convertPositionTo("absolute"); |
|
//Call plugins and callbacks and use the resulting position if something is returned |
if (!noPropagation) { |
var ui = this._uiHash(); |
if(this._trigger('drag', event, ui) === false) { |
this._mouseUp({}); |
return false; |
} |
this.position = ui.position; |
} |
|
if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px'; |
if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px'; |
if($.ui.ddmanager) $.ui.ddmanager.drag(this, event); |
|
return false; |
}, |
|
_mouseStop: function(event) { |
|
//If we are using droppables, inform the manager about the drop |
var dropped = false; |
if ($.ui.ddmanager && !this.options.dropBehaviour) |
dropped = $.ui.ddmanager.drop(this, event); |
|
//if a drop comes from outside (a sortable) |
if(this.dropped) { |
dropped = this.dropped; |
this.dropped = false; |
} |
|
//if the original element is removed, don't bother to continue |
if(!this.element[0] || !this.element[0].parentNode) |
return false; |
|
if((this.options.revert == "invalid" && !dropped) || (this.options.revert == "valid" && dropped) || this.options.revert === true || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) { |
var self = this; |
$(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), function() { |
if(self._trigger("stop", event) !== false) { |
self._clear(); |
} |
}); |
} else { |
if(this._trigger("stop", event) !== false) { |
this._clear(); |
} |
} |
|
return false; |
}, |
|
cancel: function() { |
|
if(this.helper.is(".ui-draggable-dragging")) { |
this._mouseUp({}); |
} else { |
this._clear(); |
} |
|
return this; |
|
}, |
|
_getHandle: function(event) { |
|
var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false; |
$(this.options.handle, this.element) |
.find("*") |
.andSelf() |
.each(function() { |
if(this == event.target) handle = true; |
}); |
|
return handle; |
|
}, |
|
_createHelper: function(event) { |
|
var o = this.options; |
var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event])) : (o.helper == 'clone' ? this.element.clone() : this.element); |
|
if(!helper.parents('body').length) |
helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo)); |
|
if(helper[0] != this.element[0] && !(/(fixed|absolute)/).test(helper.css("position"))) |
helper.css("position", "absolute"); |
|
return helper; |
|
}, |
|
_adjustOffsetFromHelper: function(obj) { |
if (typeof obj == 'string') { |
obj = obj.split(' '); |
} |
if ($.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.element.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.element.css("marginLeft"),10) || 0), |
top: (parseInt(this.element.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) && o.containment.constructor != Array) { |
var ce = $(o.containment)[0]; if(!ce) return; |
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 |
]; |
} else if(o.containment.constructor == Array) { |
this.containment = o.containment; |
} |
|
}, |
|
_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 && $.browser.version < 526 && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod) |
), |
left: ( |
pos.left // The absolute mouse position |
+ this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent |
+ this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border) |
- ($.browser.safari && $.browser.version < 526 && 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 && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName); |
var pageX = event.pageX; |
var pageY = event.pageY; |
|
/* |
* - Position constraining - |
* Constrain the position to a mix of grid, containment. |
*/ |
|
if(this.originalPosition) { //If we are not dragging yet, we won't check for options |
|
if(this.containment) { |
if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left; |
if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top; |
if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left; |
if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top; |
} |
|
if(o.grid) { |
var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1]; |
pageY = this.containment ? (!(top - this.offset.click.top < this.containment[1] || top - this.offset.click.top > this.containment[3]) ? top : (!(top - this.offset.click.top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top; |
|
var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0]; |
pageX = this.containment ? (!(left - this.offset.click.left < this.containment[0] || left - this.offset.click.left > this.containment[2]) ? left : (!(left - this.offset.click.left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left; |
} |
|
} |
|
return { |
top: ( |
pageY // The absolute mouse position |
- this.offset.click.top // Click offset (relative to the element) |
- this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent |
- this.offset.parent.top // The offsetParent's offset without borders (offset + border) |
+ ($.browser.safari && $.browser.version < 526 && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) )) |
), |
left: ( |
pageX // The absolute mouse position |
- this.offset.click.left // Click offset (relative to the element) |
- this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent |
- this.offset.parent.left // The offsetParent's offset without borders (offset + border) |
+ ($.browser.safari && $.browser.version < 526 && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() )) |
) |
}; |
|
}, |
|
_clear: function() { |
this.helper.removeClass("ui-draggable-dragging"); |
if(this.helper[0] != this.element[0] && !this.cancelHelperRemoval) this.helper.remove(); |
//if($.ui.ddmanager) $.ui.ddmanager.current = null; |
this.helper = null; |
this.cancelHelperRemoval = false; |
}, |
|
// From now on bulk stuff - mainly helpers |
|
_trigger: function(type, event, ui) { |
ui = ui || this._uiHash(); |
$.ui.plugin.call(this, type, [event, ui]); |
if(type == "drag") this.positionAbs = this._convertPositionTo("absolute"); //The absolute position has to be recalculated after plugins |
return $.Widget.prototype._trigger.call(this, type, event, ui); |
}, |
|
plugins: {}, |
|
_uiHash: function(event) { |
return { |
helper: this.helper, |
position: this.position, |
originalPosition: this.originalPosition, |
offset: this.positionAbs |
}; |
} |
|
}); |
|
$.extend($.ui.draggable, { |
version: "1.8.5" |
}); |
|
$.ui.plugin.add("draggable", "connectToSortable", { |
start: function(event, ui) { |
|
var inst = $(this).data("draggable"), o = inst.options, |
uiSortable = $.extend({}, ui, { item: inst.element }); |
inst.sortables = []; |
$(o.connectToSortable).each(function() { |
var sortable = $.data(this, 'sortable'); |
if (sortable && !sortable.options.disabled) { |
inst.sortables.push({ |
instance: sortable, |
shouldRevert: sortable.options.revert |
}); |
sortable._refreshItems(); //Do a one-time refresh at start to refresh the containerCache |
sortable._trigger("activate", event, uiSortable); |
} |
}); |
|
}, |
stop: function(event, ui) { |
|
//If we are still over the sortable, we fake the stop event of the sortable, but also remove helper |
var inst = $(this).data("draggable"), |
uiSortable = $.extend({}, ui, { item: inst.element }); |
|
$.each(inst.sortables, function() { |
if(this.instance.isOver) { |
|
this.instance.isOver = 0; |
|
inst.cancelHelperRemoval = true; //Don't remove the helper in the draggable instance |
this.instance.cancelHelperRemoval = false; //Remove it in the sortable instance (so sortable plugins like revert still work) |
|
//The sortable revert is supported, and we have to set a temporary dropped variable on the draggable to support revert: 'valid/invalid' |
if(this.shouldRevert) this.instance.options.revert = true; |
|
//Trigger the stop of the sortable |
this.instance._mouseStop(event); |
|
this.instance.options.helper = this.instance.options._helper; |
|
//If the helper has been the original item, restore properties in the sortable |
if(inst.options.helper == 'original') |
this.instance.currentItem.css({ top: 'auto', left: 'auto' }); |
|
} else { |
this.instance.cancelHelperRemoval = false; //Remove the helper in the sortable instance |
this.instance._trigger("deactivate", event, uiSortable); |
} |
|
}); |
|
}, |
drag: function(event, ui) { |
|
var inst = $(this).data("draggable"), self = this; |
|
var checkPos = function(o) { |
var dyClick = this.offset.click.top, dxClick = this.offset.click.left; |
var helperTop = this.positionAbs.top, helperLeft = this.positionAbs.left; |
var itemHeight = o.height, itemWidth = o.width; |
var itemTop = o.top, itemLeft = o.left; |
|
return $.ui.isOver(helperTop + dyClick, helperLeft + dxClick, itemTop, itemLeft, itemHeight, itemWidth); |
}; |
|
$.each(inst.sortables, function(i) { |
|
//Copy over some variables to allow calling the sortable's native _intersectsWith |
this.instance.positionAbs = inst.positionAbs; |
this.instance.helperProportions = inst.helperProportions; |
this.instance.offset.click = inst.offset.click; |
|
if(this.instance._intersectsWith(this.instance.containerCache)) { |
|
//If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only once |
if(!this.instance.isOver) { |
|
this.instance.isOver = 1; |
//Now we fake the start of dragging for the sortable instance, |
//by cloning the list group item, appending it to the sortable and using it as inst.currentItem |
//We can then fire the start event of the sortable with our passed browser event, and our own helper (so it doesn't create a new one) |
this.instance.currentItem = $(self).clone().appendTo(this.instance.element).data("sortable-item", true); |
this.instance.options._helper = this.instance.options.helper; //Store helper option to later restore it |
this.instance.options.helper = function() { return ui.helper[0]; }; |
|
event.target = this.instance.currentItem[0]; |
this.instance._mouseCapture(event, true); |
this.instance._mouseStart(event, true, true); |
|
//Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changes |
this.instance.offset.click.top = inst.offset.click.top; |
this.instance.offset.click.left = inst.offset.click.left; |
this.instance.offset.parent.left -= inst.offset.parent.left - this.instance.offset.parent.left; |
this.instance.offset.parent.top -= inst.offset.parent.top - this.instance.offset.parent.top; |
|
inst._trigger("toSortable", event); |
inst.dropped = this.instance.element; //draggable revert needs that |
//hack so receive/update callbacks work (mostly) |
inst.currentItem = inst.element; |
this.instance.fromOutside = inst; |
|
} |
|
//Provided we did all the previous steps, we can fire the drag event of the sortable on every draggable drag, when it intersects with the sortable |
if(this.instance.currentItem) this.instance._mouseDrag(event); |
|
} else { |
|
//If it doesn't intersect with the sortable, and it intersected before, |
//we fake the drag stop of the sortable, but make sure it doesn't remove the helper by using cancelHelperRemoval |
if(this.instance.isOver) { |
|
this.instance.isOver = 0; |
this.instance.cancelHelperRemoval = true; |
|
//Prevent reverting on this forced stop |
this.instance.options.revert = false; |
|
// The out event needs to be triggered independently |
this.instance._trigger('out', event, this.instance._uiHash(this.instance)); |
|
this.instance._mouseStop(event, true); |
this.instance.options.helper = this.instance.options._helper; |
|
//Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original size |
this.instance.currentItem.remove(); |
if(this.instance.placeholder) this.instance.placeholder.remove(); |
|
inst._trigger("fromSortable", event); |
inst.dropped = false; //draggable revert needs that |
} |
|
}; |
|
}); |
|
} |
}); |
|
$.ui.plugin.add("draggable", "cursor", { |
start: function(event, ui) { |
var t = $('body'), o = $(this).data('draggable').options; |
if (t.css("cursor")) o._cursor = t.css("cursor"); |
t.css("cursor", o.cursor); |
}, |
stop: function(event, ui) { |
var o = $(this).data('draggable').options; |
if (o._cursor) $('body').css("cursor", o._cursor); |
} |
}); |
|
$.ui.plugin.add("draggable", "iframeFix", { |
start: function(event, ui) { |
var o = $(this).data('draggable').options; |
$(o.iframeFix === true ? "iframe" : o.iframeFix).each(function() { |
$('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>') |
.css({ |
width: this.offsetWidth+"px", height: this.offsetHeight+"px", |
position: "absolute", opacity: "0.001", zIndex: 1000 |
}) |
.css($(this).offset()) |
.appendTo("body"); |
}); |
}, |
stop: function(event, ui) { |
$("div.ui-draggable-iframeFix").each(function() { this.parentNode.removeChild(this); }); //Remove frame helpers |
} |
}); |
|
$.ui.plugin.add("draggable", "opacity", { |
start: function(event, ui) { |
var t = $(ui.helper), o = $(this).data('draggable').options; |
if(t.css("opacity")) o._opacity = t.css("opacity"); |
t.css('opacity', o.opacity); |
}, |
stop: function(event, ui) { |
var o = $(this).data('draggable').options; |
if(o._opacity) $(ui.helper).css('opacity', o._opacity); |
} |
}); |
|
$.ui.plugin.add("draggable", "scroll", { |
start: function(event, ui) { |
var i = $(this).data("draggable"); |
if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') i.overflowOffset = i.scrollParent.offset(); |
}, |
drag: function(event, ui) { |
|
var i = $(this).data("draggable"), o = i.options, scrolled = false; |
|
if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') { |
|
if(!o.axis || o.axis != 'x') { |
if((i.overflowOffset.top + i.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) |
i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop + o.scrollSpeed; |
else if(event.pageY - i.overflowOffset.top < o.scrollSensitivity) |
i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop - o.scrollSpeed; |
} |
|
if(!o.axis || o.axis != 'y') { |
if((i.overflowOffset.left + i.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) |
i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft + o.scrollSpeed; |
else if(event.pageX - i.overflowOffset.left < o.scrollSensitivity) |
i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft - o.scrollSpeed; |
} |
|
} else { |
|
if(!o.axis || o.axis != 'x') { |
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(!o.axis || o.axis != 'y') { |
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(i, event); |
|
} |
}); |
|
$.ui.plugin.add("draggable", "snap", { |
start: function(event, ui) { |
|
var i = $(this).data("draggable"), o = i.options; |
i.snapElements = []; |
|
$(o.snap.constructor != String ? ( o.snap.items || ':data(draggable)' ) : o.snap).each(function() { |
var $t = $(this); var $o = $t.offset(); |
if(this != i.element[0]) i.snapElements.push({ |
item: this, |
width: $t.outerWidth(), height: $t.outerHeight(), |
top: $o.top, left: $o.left |
}); |
}); |
|
}, |
drag: function(event, ui) { |
|
var inst = $(this).data("draggable"), o = inst.options; |
var d = o.snapTolerance; |
|
var x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width, |
y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height; |
|
for (var i = inst.snapElements.length - 1; i >= 0; i--){ |
|
var l = inst.snapElements[i].left, r = l + inst.snapElements[i].width, |
t = inst.snapElements[i].top, b = t + inst.snapElements[i].height; |
|
//Yes, I know, this is insane ;) |
if(!((l-d < x1 && x1 < r+d && t-d < y1 && y1 < b+d) || (l-d < x1 && x1 < r+d && t-d < y2 && y2 < b+d) || (l-d < x2 && x2 < r+d && t-d < y1 && y1 < b+d) || (l-d < x2 && x2 < r+d && t-d < y2 && y2 < b+d))) { |
if(inst.snapElements[i].snapping) (inst.options.snap.release && inst.options.snap.release.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item }))); |
inst.snapElements[i].snapping = false; |
continue; |
} |
|
if(o.snapMode != 'inner') { |
var ts = Math.abs(t - y2) <= d; |
var bs = Math.abs(b - y1) <= d; |
var ls = Math.abs(l - x2) <= d; |
var rs = Math.abs(r - x1) <= d; |
if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t - inst.helperProportions.height, left: 0 }).top - inst.margins.top; |
if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b, left: 0 }).top - inst.margins.top; |
if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left - inst.margins.left; |
if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r }).left - inst.margins.left; |
} |
|
var first = (ts || bs || ls || rs); |
|
if(o.snapMode != 'outer') { |
var ts = Math.abs(t - y1) <= d; |
var bs = Math.abs(b - y2) <= d; |
var ls = Math.abs(l - x1) <= d; |
var rs = Math.abs(r - x2) <= d; |
if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t, left: 0 }).top - inst.margins.top; |
if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top - inst.margins.top; |
if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l }).left - inst.margins.left; |
if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left - inst.margins.left; |
} |
|
if(!inst.snapElements[i].snapping && (ts || bs || ls || rs || first)) |
(inst.options.snap.snap && inst.options.snap.snap.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item }))); |
inst.snapElements[i].snapping = (ts || bs || ls || rs || first); |
|
}; |
|
} |
}); |
|
$.ui.plugin.add("draggable", "stack", { |
start: function(event, ui) { |
|
var o = $(this).data("draggable").options; |
|
var group = $.makeArray($(o.stack)).sort(function(a,b) { |
return (parseInt($(a).css("zIndex"),10) || 0) - (parseInt($(b).css("zIndex"),10) || 0); |
}); |
if (!group.length) { return; } |
|
var min = parseInt(group[0].style.zIndex) || 0; |
$(group).each(function(i) { |
this.style.zIndex = min + i; |
}); |
|
this[0].style.zIndex = min + group.length; |
|
} |
}); |
|
$.ui.plugin.add("draggable", "zIndex", { |
start: function(event, ui) { |
var t = $(ui.helper), o = $(this).data("draggable").options; |
if(t.css("zIndex")) o._zIndex = t.css("zIndex"); |
t.css('zIndex', o.zIndex); |
}, |
stop: function(event, ui) { |
var o = $(this).data("draggable").options; |
if(o._zIndex) $(ui.helper).css('zIndex', o._zIndex); |
} |
}); |
|
})(jQuery); |