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/* |
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* jQuery UI Draggable |
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* |
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* Copyright (c) 2008 Paul Bakaus |
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* Dual licensed under the MIT (MIT-LICENSE.txt) |
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* and GPL (GPL-LICENSE.txt) licenses. |
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* |
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* http://docs.jquery.com/UI/Draggables |
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* |
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* Depends: |
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* ui.core.js |
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*/ |
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(function($) { |
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|
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$.widget("ui.draggable", $.extend($.ui.mouse, { |
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init: function() { |
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|
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//Initialize needed constants |
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var o = this.options; |
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|
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//Position the node |
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if (o.helper == 'original' && !(/(relative|absolute|fixed)/).test(this.element.css('position'))) |
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this.element.css('position', 'relative'); |
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|
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this.element.addClass('ui-draggable'); |
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(o.disabled && this.element.addClass('ui-draggable-disabled')); |
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|
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this.mouseInit(); |
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|
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}, |
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mouseStart: function(e) { |
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var o = this.options; |
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|
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if (this.helper || o.disabled || $(e.target).is('.ui-resizable-handle')) return false; |
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|
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var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false; |
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|
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|
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$(this.options.handle, this.element).find("*").andSelf().each(function() { |
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if(this == e.target) handle = true; |
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}); |
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if (!handle) return false; |
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|
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if($.ui.ddmanager) $.ui.ddmanager.current = this; |
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|
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//Create and append the visible helper |
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this.helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [e])) : (o.helper == 'clone' ? this.element.clone() : this.element); |
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if(!this.helper.parents('body').length) this.helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo)); |
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if(this.helper[0] != this.element[0] && !(/(fixed|absolute)/).test(this.helper.css("position"))) this.helper.css("position", "absolute"); |
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|
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/* |
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* - Position generation - |
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* This block generates everything position related - it's the core of draggables. |
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*/ |
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|
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this.margins = { //Cache the margins |
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left: (parseInt(this.element.css("marginLeft"),10) || 0), |
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top: (parseInt(this.element.css("marginTop"),10) || 0) |
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}; |
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|
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this.cssPosition = this.helper.css("position"); //Store the helper's css position |
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this.offset = this.element.offset(); //The element's absolute position on the page |
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this.offset = { //Substract the margins from the element's absolute offset |
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top: this.offset.top - this.margins.top, |
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left: this.offset.left - this.margins.left |
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}; |
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|
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this.offset.click = { //Where the click happened, relative to the element |
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left: e.pageX - this.offset.left, |
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top: e.pageY - this.offset.top |
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}; |
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|
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this.offsetParent = this.helper.offsetParent(); var po = this.offsetParent.offset(); //Get the offsetParent and cache its position |
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if(this.offsetParent[0] == document.body && $.browser.mozilla) po = { top: 0, left: 0 }; //Ugly FF3 fix |
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this.offset.parent = { //Store its position plus border |
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top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0), |
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left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0) |
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}; |
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|
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var p = this.element.position(); //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helpers |
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this.offset.relative = this.cssPosition == "relative" ? { |
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top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.offsetParent[0].scrollTop, |
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left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.offsetParent[0].scrollLeft |
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} : { top: 0, left: 0 }; |
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|
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this.originalPosition = this.generatePosition(e); //Generate the original position |
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this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() };//Cache the helper size |
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|
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if(o.cursorAt) { |
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if(o.cursorAt.left != undefined) this.offset.click.left = o.cursorAt.left + this.margins.left; |
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if(o.cursorAt.right != undefined) this.offset.click.left = this.helperProportions.width - o.cursorAt.right + this.margins.left; |
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if(o.cursorAt.top != undefined) this.offset.click.top = o.cursorAt.top + this.margins.top; |
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if(o.cursorAt.bottom != undefined) this.offset.click.top = this.helperProportions.height - o.cursorAt.bottom + this.margins.top; |
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} |
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|
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|
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/* |
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* - Position constraining - |
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* Here we prepare position constraining like grid and containment. |
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*/ |
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|
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if(o.containment) { |
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if(o.containment == 'parent') o.containment = this.helper[0].parentNode; |
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if(o.containment == 'document' || o.containment == 'window') this.containment = [ |
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0 - this.offset.relative.left - this.offset.parent.left, |
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0 - this.offset.relative.top - this.offset.parent.top, |
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$(o.containment == 'document' ? document : window).width() - this.offset.relative.left - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"),10) || 0), |
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($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.offset.relative.top - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.element.css("marginBottom"),10) || 0) |
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]; |
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|
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if(!(/^(document|window|parent)$/).test(o.containment)) { |
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var ce = $(o.containment)[0]; |
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var co = $(o.containment).offset(); |
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|
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this.containment = [ |
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co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) - this.offset.relative.left - this.offset.parent.left, |
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co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) - this.offset.relative.top - this.offset.parent.top, |
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co.left+Math.max(ce.scrollWidth,ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - this.offset.relative.left - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"),10) || 0), |
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co.top+Math.max(ce.scrollHeight,ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - this.offset.relative.top - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.element.css("marginBottom"),10) || 0) |
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]; |
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} |
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} |
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|
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//Call plugins and callbacks |
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this.propagate("start", e); |
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|
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this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() };//Recache the helper size |
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if ($.ui.ddmanager && !o.dropBehaviour) $.ui.ddmanager.prepareOffsets(this, e); |
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|
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this.helper.addClass("ui-draggable-dragging"); |
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this.mouseDrag(e); //Execute the drag once - this causes the helper not to be visible before getting its correct position |
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return true; |
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}, |
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convertPositionTo: function(d, pos) { |
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if(!pos) pos = this.position; |
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var mod = d == "absolute" ? 1 : -1; |
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return { |
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top: ( |
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pos.top // the calculated relative position |
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+ this.offset.relative.top * mod // Only for relative positioned nodes: Relative offset from element to offset parent |
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+ this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border) |
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- (this.cssPosition == "fixed" || (this.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollTop) * mod // The offsetParent's scroll position, not if the element is fixed |
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+ (this.cssPosition == "fixed" ? $(document).scrollTop() : 0) * mod |
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+ this.margins.top * mod //Add the margin (you don't want the margin counting in intersection methods) |
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), |
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left: ( |
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pos.left // the calculated relative position |
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+ this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent |
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+ this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border) |
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- (this.cssPosition == "fixed" || (this.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollLeft) * mod // The offsetParent's scroll position, not if the element is fixed |
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+ (this.cssPosition == "fixed" ? $(document).scrollLeft() : 0) * mod |
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+ this.margins.left * mod //Add the margin (you don't want the margin counting in intersection methods) |
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) |
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}; |
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}, |
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generatePosition: function(e) { |
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|
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var o = this.options; |
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var position = { |
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top: ( |
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e.pageY // The absolute mouse position |
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- this.offset.click.top // Click offset (relative to the element) |
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- this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent |
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- this.offset.parent.top // The offsetParent's offset without borders (offset + border) |
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+ (this.cssPosition == "fixed" || (this.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollTop) // The offsetParent's scroll position, not if the element is fixed |
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- (this.cssPosition == "fixed" ? $(document).scrollTop() : 0) |
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), |
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left: ( |
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e.pageX // The absolute mouse position |
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- this.offset.click.left // Click offset (relative to the element) |
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- this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent |
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- this.offset.parent.left // The offsetParent's offset without borders (offset + border) |
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+ (this.cssPosition == "fixed" || (this.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollLeft) // The offsetParent's scroll position, not if the element is fixed |
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- (this.cssPosition == "fixed" ? $(document).scrollLeft() : 0) |
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) |
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}; |
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|
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if(!this.originalPosition) return position; //If we are not dragging yet, we won't check for options |
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|
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/* |
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* - Position constraining - |
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* Constrain the position to a mix of grid, containment. |
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*/ |
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if(this.containment) { |
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if(position.left < this.containment[0]) position.left = this.containment[0]; |
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if(position.top < this.containment[1]) position.top = this.containment[1]; |
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if(position.left > this.containment[2]) position.left = this.containment[2]; |
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if(position.top > this.containment[3]) position.top = this.containment[3]; |
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} |
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|
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if(o.grid) { |
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var top = this.originalPosition.top + Math.round((position.top - this.originalPosition.top) / o.grid[1]) * o.grid[1]; |
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position.top = this.containment ? (!(top < this.containment[1] || top > this.containment[3]) ? top : (!(top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top; |
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|
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var left = this.originalPosition.left + Math.round((position.left - this.originalPosition.left) / o.grid[0]) * o.grid[0]; |
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position.left = this.containment ? (!(left < this.containment[0] || left > this.containment[2]) ? left : (!(left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left; |
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} |
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|
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return position; |
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}, |
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mouseDrag: function(e) { |
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|
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//Compute the helpers position |
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this.position = this.generatePosition(e); |
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this.positionAbs = this.convertPositionTo("absolute"); |
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|
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//Call plugins and callbacks and use the resulting position if something is returned |
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this.position = this.propagate("drag", e) || this.position; |
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|
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if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px'; |
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if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px'; |
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if($.ui.ddmanager) $.ui.ddmanager.drag(this, e); |
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|
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return false; |
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}, |
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mouseStop: function(e) { |
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|
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//If we are using droppables, inform the manager about the drop |
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if ($.ui.ddmanager && !this.options.dropBehaviour) |
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$.ui.ddmanager.drop(this, e); |
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|
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if(this.options.revert) { |
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var self = this; |
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$(this.helper).animate(this.originalPosition, parseInt(this.options.revert, 10) || 500, function() { |
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self.propagate("stop", e); |
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self.clear(); |
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}); |
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} else { |
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this.propagate("stop", e); |
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this.clear(); |
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} |
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|
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return false; |
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}, |
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clear: function() { |
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this.helper.removeClass("ui-draggable-dragging"); |
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if(this.options.helper != 'original' && !this.cancelHelperRemoval) this.helper.remove(); |
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//if($.ui.ddmanager) $.ui.ddmanager.current = null; |
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this.helper = null; |
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this.cancelHelperRemoval = false; |
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}, |
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|
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// From now on bulk stuff - mainly helpers |
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plugins: {}, |
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uiHash: function(e) { |
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return { |
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helper: this.helper, |
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position: this.position, |
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absolutePosition: this.positionAbs, |
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options: this.options |
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}; |
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}, |
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propagate: function(n,e) { |
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$.ui.plugin.call(this, n, [e, this.uiHash()]); |
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return this.element.triggerHandler(n == "drag" ? n : "drag"+n, [e, this.uiHash()], this.options[n]); |
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}, |
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destroy: function() { |
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if(!this.element.data('draggable')) return; |
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this.element.removeData("draggable").unbind(".draggable").removeClass('ui-draggable'); |
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this.mouseDestroy(); |
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} |
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})); |
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|
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$.extend($.ui.draggable, { |
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defaults: { |
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appendTo: "parent", |
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axis: false, |
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cancel: ":input", |
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delay: 0, |
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distance: 1, |
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helper: "original" |
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} |
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}); |
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|
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$.ui.plugin.add("draggable", "cursor", { |
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start: function(e, ui) { |
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var t = $('body'); |
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if (t.css("cursor")) ui.options._cursor = t.css("cursor"); |
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t.css("cursor", ui.options.cursor); |
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}, |
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stop: function(e, ui) { |
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if (ui.options._cursor) $('body').css("cursor", ui.options._cursor); |
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} |
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}); |
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|
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$.ui.plugin.add("draggable", "zIndex", { |
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start: function(e, ui) { |
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var t = $(ui.helper); |
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if(t.css("zIndex")) ui.options._zIndex = t.css("zIndex"); |
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t.css('zIndex', ui.options.zIndex); |
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}, |
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stop: function(e, ui) { |
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if(ui.options._zIndex) $(ui.helper).css('zIndex', ui.options._zIndex); |
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} |
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}); |
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|
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$.ui.plugin.add("draggable", "opacity", { |
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start: function(e, ui) { |
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var t = $(ui.helper); |
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if(t.css("opacity")) ui.options._opacity = t.css("opacity"); |
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t.css('opacity', ui.options.opacity); |
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}, |
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stop: function(e, ui) { |
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if(ui.options._opacity) $(ui.helper).css('opacity', ui.options._opacity); |
| 305 |
} |
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}); |
| 307 |
|
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$.ui.plugin.add("draggable", "iframeFix", { |
| 309 |
start: function(e, ui) { |
| 310 |
$(ui.options.iframeFix === true ? "iframe" : ui.options.iframeFix).each(function() { |
| 311 |
$('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>') |
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.css({ |
| 313 |
width: this.offsetWidth+"px", height: this.offsetHeight+"px", |
| 314 |
position: "absolute", opacity: "0.001", zIndex: 1000 |
| 315 |
}) |
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.css($(this).offset()) |
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.appendTo("body"); |
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}); |
| 319 |
}, |
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stop: function(e, ui) { |
| 321 |
$("div.DragDropIframeFix").each(function() { this.parentNode.removeChild(this); }); //Remove frame helpers |
| 322 |
} |
| 323 |
}); |
| 324 |
|
| 325 |
$.ui.plugin.add("draggable", "scroll", { |
| 326 |
start: function(e, ui) { |
| 327 |
var o = ui.options; |
| 328 |
var i = $(this).data("draggable"); |
| 329 |
o.scrollSensitivity = o.scrollSensitivity || 20; |
| 330 |
o.scrollSpeed = o.scrollSpeed || 20; |
| 331 |
|
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i.overflowY = function(el) { |
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do { if(/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-y'))) return el; el = el.parent(); } while (el[0].parentNode); |
| 334 |
return $(document); |
| 335 |
}(this); |
| 336 |
i.overflowX = function(el) { |
| 337 |
do { if(/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-x'))) return el; el = el.parent(); } while (el[0].parentNode); |
| 338 |
return $(document); |
| 339 |
}(this); |
| 340 |
|
| 341 |
if(i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') i.overflowYOffset = i.overflowY.offset(); |
| 342 |
if(i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') i.overflowXOffset = i.overflowX.offset(); |
| 343 |
|
| 344 |
}, |
| 345 |
drag: function(e, ui) { |
| 346 |
|
| 347 |
var o = ui.options; |
| 348 |
var i = $(this).data("draggable"); |
| 349 |
|
| 350 |
if(i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') { |
| 351 |
if((i.overflowYOffset.top + i.overflowY[0].offsetHeight) - e.pageY < o.scrollSensitivity) |
| 352 |
i.overflowY[0].scrollTop = i.overflowY[0].scrollTop + o.scrollSpeed; |
| 353 |
if(e.pageY - i.overflowYOffset.top < o.scrollSensitivity) |
| 354 |
i.overflowY[0].scrollTop = i.overflowY[0].scrollTop - o.scrollSpeed; |
| 355 |
|
| 356 |
} else { |
| 357 |
if(e.pageY - $(document).scrollTop() < o.scrollSensitivity) |
| 358 |
$(document).scrollTop($(document).scrollTop() - o.scrollSpeed); |
| 359 |
if($(window).height() - (e.pageY - $(document).scrollTop()) < o.scrollSensitivity) |
| 360 |
$(document).scrollTop($(document).scrollTop() + o.scrollSpeed); |
| 361 |
} |
| 362 |
|
| 363 |
if(i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') { |
| 364 |
if((i.overflowXOffset.left + i.overflowX[0].offsetWidth) - e.pageX < o.scrollSensitivity) |
| 365 |
i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft + o.scrollSpeed; |
| 366 |
if(e.pageX - i.overflowXOffset.left < o.scrollSensitivity) |
| 367 |
i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft - o.scrollSpeed; |
| 368 |
} else { |
| 369 |
if(e.pageX - $(document).scrollLeft() < o.scrollSensitivity) |
| 370 |
$(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed); |
| 371 |
if($(window).width() - (e.pageX - $(document).scrollLeft()) < o.scrollSensitivity) |
| 372 |
$(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed); |
| 373 |
} |
| 374 |
|
| 375 |
} |
| 376 |
}); |
| 377 |
|
| 378 |
$.ui.plugin.add("draggable", "snap", { |
| 379 |
start: function(e, ui) { |
| 380 |
|
| 381 |
var inst = $(this).data("draggable"); |
| 382 |
inst.snapElements = []; |
| 383 |
$(ui.options.snap === true ? '.ui-draggable' : ui.options.snap).each(function() { |
| 384 |
var $t = $(this); var $o = $t.offset(); |
| 385 |
if(this != inst.element[0]) inst.snapElements.push({ |
| 386 |
item: this, |
| 387 |
width: $t.outerWidth(), height: $t.outerHeight(), |
| 388 |
top: $o.top, left: $o.left |
| 389 |
}); |
| 390 |
}); |
| 391 |
|
| 392 |
}, |
| 393 |
drag: function(e, ui) { |
| 394 |
|
| 395 |
var inst = $(this).data("draggable"); |
| 396 |
var d = ui.options.snapTolerance || 20; |
| 397 |
var x1 = ui.absolutePosition.left, x2 = x1 + inst.helperProportions.width, |
| 398 |
y1 = ui.absolutePosition.top, y2 = y1 + inst.helperProportions.height; |
| 399 |
|
| 400 |
for (var i = inst.snapElements.length - 1; i >= 0; i--){ |
| 401 |
|
| 402 |
var l = inst.snapElements[i].left, r = l + inst.snapElements[i].width, |
| 403 |
t = inst.snapElements[i].top, b = t + inst.snapElements[i].height; |
| 404 |
|
| 405 |
//Yes, I know, this is insane ;) |
| 406 |
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))) continue; |
| 407 |
|
| 408 |
if(ui.options.snapMode != 'inner') { |
| 409 |
var ts = Math.abs(t - y2) <= 20; |
| 410 |
var bs = Math.abs(b - y1) <= 20; |
| 411 |
var ls = Math.abs(l - x2) <= 20; |
| 412 |
var rs = Math.abs(r - x1) <= 20; |
| 413 |
if(ts) ui.position.top = inst.convertPositionTo("relative", { top: t - inst.helperProportions.height, left: 0 }).top; |
| 414 |
if(bs) ui.position.top = inst.convertPositionTo("relative", { top: b, left: 0 }).top; |
| 415 |
if(ls) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left; |
| 416 |
if(rs) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: r }).left; |
| 417 |
} |
| 418 |
|
| 419 |
if(ui.options.snapMode != 'outer') { |
| 420 |
var ts = Math.abs(t - y1) <= 20; |
| 421 |
var bs = Math.abs(b - y2) <= 20; |
| 422 |
var ls = Math.abs(l - x1) <= 20; |
| 423 |
var rs = Math.abs(r - x2) <= 20; |
| 424 |
if(ts) ui.position.top = inst.convertPositionTo("relative", { top: t, left: 0 }).top; |
| 425 |
if(bs) ui.position.top = inst.convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top; |
| 426 |
if(ls) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: l }).left; |
| 427 |
if(rs) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left; |
| 428 |
} |
| 429 |
|
| 430 |
}; |
| 431 |
} |
| 432 |
}); |
| 433 |
|
| 434 |
$.ui.plugin.add("draggable", "connectToSortable", { |
| 435 |
start: function(e,ui) { |
| 436 |
|
| 437 |
var inst = $(this).data("draggable"); |
| 438 |
inst.sortables = []; |
| 439 |
$(ui.options.connectToSortable).each(function() { |
| 440 |
if($.data(this, 'sortable')) { |
| 441 |
var sortable = $.data(this, 'sortable'); |
| 442 |
inst.sortables.push({ |
| 443 |
instance: sortable, |
| 444 |
shouldRevert: sortable.options.revert |
| 445 |
}); |
| 446 |
sortable.refreshItems(); //Do a one-time refresh at start to refresh the containerCache |
| 447 |
sortable.propagate("activate", e, inst); |
| 448 |
} |
| 449 |
}); |
| 450 |
|
| 451 |
}, |
| 452 |
stop: function(e,ui) { |
| 453 |
|
| 454 |
//If we are still over the sortable, we fake the stop event of the sortable, but also remove helper |
| 455 |
var inst = $(this).data("draggable"); |
| 456 |
|
| 457 |
$.each(inst.sortables, function() { |
| 458 |
if(this.instance.isOver) { |
| 459 |
this.instance.isOver = 0; |
| 460 |
inst.cancelHelperRemoval = true; //Don't remove the helper in the draggable instance |
| 461 |
this.instance.cancelHelperRemoval = false; //Remove it in the sortable instance (so sortable plugins like revert still work) |
| 462 |
if(this.shouldRevert) this.instance.options.revert = true; //revert here |
| 463 |
this.instance.mouseStop(e); |
| 464 |
|
| 465 |
//Also propagate receive event, since the sortable is actually receiving a element |
| 466 |
this.instance.element.triggerHandler("sortreceive", [e, $.extend(this.instance.ui(), { sender: inst.element })], this.instance.options["receive"]); |
| 467 |
|
| 468 |
this.instance.options.helper = this.instance.options._helper; |
| 469 |
} else { |
| 470 |
this.instance.propagate("deactivate", e, inst); |
| 471 |
} |
| 472 |
|
| 473 |
}); |
| 474 |
|
| 475 |
}, |
| 476 |
drag: function(e,ui) { |
| 477 |
|
| 478 |
var inst = $(this).data("draggable"), self = this; |
| 479 |
|
| 480 |
var checkPos = function(o) { |
| 481 |
|
| 482 |
var l = o.left, r = l + o.width, |
| 483 |
t = o.top, b = t + o.height; |
| 484 |
|
| 485 |
return (l < (this.positionAbs.left + this.offset.click.left) && (this.positionAbs.left + this.offset.click.left) < r |
| 486 |
&& t < (this.positionAbs.top + this.offset.click.top) && (this.positionAbs.top + this.offset.click.top) < b); |
| 487 |
}; |
| 488 |
|
| 489 |
$.each(inst.sortables, function(i) { |
| 490 |
|
| 491 |
if(checkPos.call(inst, this.instance.containerCache)) { |
| 492 |
|
| 493 |
//If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only once |
| 494 |
if(!this.instance.isOver) { |
| 495 |
this.instance.isOver = 1; |
| 496 |
|
| 497 |
//Now we fake the start of dragging for the sortable instance, |
| 498 |
//by cloning the list group item, appending it to the sortable and using it as inst.currentItem |
| 499 |
//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) |
| 500 |
this.instance.currentItem = $(self).clone().appendTo(this.instance.element).data("sortable-item", true); |
| 501 |
this.instance.options._helper = this.instance.options.helper; //Store helper option to later restore it |
| 502 |
this.instance.options.helper = function() { return ui.helper[0]; }; |
| 503 |
|
| 504 |
e.target = this.instance.currentItem[0]; |
| 505 |
this.instance.mouseCapture(e, true); |
| 506 |
this.instance.mouseStart(e, true, true); |
| 507 |
|
| 508 |
//Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changes |
| 509 |
this.instance.offset.click.top = inst.offset.click.top; |
| 510 |
this.instance.offset.click.left = inst.offset.click.left; |
| 511 |
this.instance.offset.parent.left -= inst.offset.parent.left - this.instance.offset.parent.left; |
| 512 |
this.instance.offset.parent.top -= inst.offset.parent.top - this.instance.offset.parent.top; |
| 513 |
|
| 514 |
inst.propagate("toSortable", e); |
| 515 |
|
| 516 |
} |
| 517 |
|
| 518 |
//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 |
| 519 |
if(this.instance.currentItem) this.instance.mouseDrag(e); |
| 520 |
|
| 521 |
} else { |
| 522 |
|
| 523 |
//If it doesn't intersect with the sortable, and it intersected before, |
| 524 |
//we fake the drag stop of the sortable, but make sure it doesn't remove the helper by using cancelHelperRemoval |
| 525 |
if(this.instance.isOver) { |
| 526 |
this.instance.isOver = 0; |
| 527 |
this.instance.cancelHelperRemoval = true; |
| 528 |
this.instance.options.revert = false; //No revert here |
| 529 |
this.instance.mouseStop(e, true); |
| 530 |
this.instance.options.helper = this.instance.options._helper; |
| 531 |
|
| 532 |
//Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original size |
| 533 |
this.instance.currentItem.remove(); |
| 534 |
if(this.instance.placeholder) this.instance.placeholder.remove(); |
| 535 |
|
| 536 |
inst.propagate("fromSortable", e); |
| 537 |
} |
| 538 |
|
| 539 |
}; |
| 540 |
|
| 541 |
}); |
| 542 |
|
| 543 |
} |
| 544 |
}); |
| 545 |
|
| 546 |
$.ui.plugin.add("draggable", "stack", { |
| 547 |
start: function(e,ui) { |
| 548 |
var group = $.makeArray($(ui.options.stack.group)).sort(function(a,b) { |
| 549 |
return (parseInt($(a).css("zIndex"),10) || ui.options.stack.min) - (parseInt($(b).css("zIndex"),10) || ui.options.stack.min); |
| 550 |
}); |
| 551 |
|
| 552 |
$(group).each(function(i) { |
| 553 |
this.style.zIndex = ui.options.stack.min + i; |
| 554 |
}); |
| 555 |
|
| 556 |
this[0].style.zIndex = ui.options.stack.min + group.length; |
| 557 |
} |
| 558 |
}); |
| 559 |
|
| 560 |
})(jQuery); |
| 561 |
|
