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694 lines
27 KiB
JavaScript
694 lines
27 KiB
JavaScript
/*
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* jQuery UI Draggable @VERSION
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*
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* Copyright (c) 2008 AUTHORS.txt (http://ui.jquery.com/about)
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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($) {
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$.widget("ui.draggable", $.extend({}, $.ui.mouse, {
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_init: function() {
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if (this.options.helper == 'original' && !(/^(?:r|a|f)/).test(this.element.css("position")))
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this.element[0].style.position = 'relative';
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(this.options.cssNamespace && this.element.addClass(this.options.cssNamespace+"-draggable"));
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(this.options.disabled && this.element.addClass('ui-draggable-disabled'));
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this._mouseInit();
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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 ui-draggable-dragging ui-draggable-disabled');
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this._mouseDestroy();
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},
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_mouseCapture: function(event) {
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var o = this.options;
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if (this.helper || o.disabled || $(event.target).is('.ui-resizable-handle'))
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return false;
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//Quit if we're not on a valid handle
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this.handle = this.getHandle(event);
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if (!this.handle)
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return false;
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return true;
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},
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_mouseStart: function(event) {
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var o = this.options;
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//Create and append the visible helper
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this.helper = this.createHelper(event);
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//If ddmanager is used for droppables, set the global draggable
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if($.ui.ddmanager)
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$.ui.ddmanager.current = this;
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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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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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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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this.offset.click = { //Where the click happened, relative to the element
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left: event.pageX - this.offset.left,
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top: event.pageY - this.offset.top
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};
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//Calling this method cached the next parents that have scrollTop / scrollLeft attached
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this.cacheScrollParents();
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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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if(this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.browser.msie) po = { top: 0, left: 0 }; //Ugly IE 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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//This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
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if(this.cssPosition == "relative") {
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var p = this.element.position();
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this.offset.relative = {
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top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollTopParent.scrollTop(),
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left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollLeftParent.scrollLeft()
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};
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} else {
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this.offset.relative = { top: 0, left: 0 };
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}
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//Generate the original position
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this.originalPosition = this._generatePosition(event);
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//Cache the helper size
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this.cacheHelperProportions();
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//Adjust the mouse offset relative to the helper if 'cursorAt' is supplied
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if(o.cursorAt)
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this.adjustOffsetFromHelper(o.cursorAt);
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//Cache later used stuff
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$.extend(this, {
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PAGEY_INCLUDES_SCROLL: (this.cssPosition == "absolute" && (!this.scrollTopParent[0].tagName || (/(html|body)/i).test(this.scrollTopParent[0].tagName))),
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PAGEX_INCLUDES_SCROLL: (this.cssPosition == "absolute" && (!this.scrollLeftParent[0].tagName || (/(html|body)/i).test(this.scrollLeftParent[0].tagName))),
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OFFSET_PARENT_NOT_SCROLL_PARENT_Y: this.scrollTopParent[0] != this.offsetParent[0] && !(this.scrollTopParent[0] == document && (/(body|html)/i).test(this.offsetParent[0].tagName)),
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OFFSET_PARENT_NOT_SCROLL_PARENT_X: this.scrollLeftParent[0] != this.offsetParent[0] && !(this.scrollLeftParent[0] == document && (/(body|html)/i).test(this.offsetParent[0].tagName))
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});
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if(o.containment)
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this.setContainment();
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//Call plugins and callbacks
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this._propagate("start", event);
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//Recache the helper size
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this.cacheHelperProportions();
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//Prepare the droppable offsets
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if ($.ui.ddmanager && !o.dropBehaviour)
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$.ui.ddmanager.prepareOffsets(this, event);
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this.helper.addClass("ui-draggable-dragging");
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this._mouseDrag(event); //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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_mouseDrag: function(event) {
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//Compute the helpers position
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this.position = this._generatePosition(event);
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this.positionAbs = this._convertPositionTo("absolute");
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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", event) || this.position;
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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) $.ui.ddmanager.drag(this, event);
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return false;
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},
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_mouseStop: function(event) {
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//If we are using droppables, inform the manager about the drop
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var dropped = false;
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if ($.ui.ddmanager && !this.options.dropBehaviour)
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var dropped = $.ui.ddmanager.drop(this, event);
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if((this.options.revert == "invalid" && !dropped) || (this.options.revert == "valid" && dropped) || this.options.revert === true || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) {
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var self = this;
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$(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), function() {
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self._propagate("stop", event);
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self._clear();
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});
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} else {
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this._propagate("stop", event);
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this._clear();
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}
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return false;
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},
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getHandle: function(event) {
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var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false;
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$(this.options.handle, this.element)
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.find("*")
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.andSelf()
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.each(function() {
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if(this == event.target) handle = true;
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});
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return handle;
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},
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createHelper: function(event) {
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var o = this.options;
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var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event])) : (o.helper == 'clone' ? this.element.clone() : this.element);
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if(!helper.parents('body').length)
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helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo));
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if(helper[0] != this.element[0] && !(/(fixed|absolute)/).test(helper.css("position")))
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helper.css("position", "absolute");
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return helper;
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},
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cacheScrollParents: function() {
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this.scrollTopParent = 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);
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return $(document);
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}(this.helper);
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this.scrollLeftParent = function(el) {
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do { if(/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-x'))) return el; el = el.parent(); } while (el[0].parentNode);
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return $(document);
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}(this.helper);
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},
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adjustOffsetFromHelper: function(obj) {
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if(obj.left != undefined) this.offset.click.left = obj.left + this.margins.left;
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if(obj.right != undefined) this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
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if(obj.top != undefined) this.offset.click.top = obj.top + this.margins.top;
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if(obj.bottom != undefined) this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
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},
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cacheHelperProportions: function() {
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this.helperProportions = {
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width: this.helper.outerWidth(),
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height: this.helper.outerHeight()
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};
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},
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setContainment: function() {
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var o = this.options;
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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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($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.offset.relative.top - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.element.css("marginBottom"),10) || 0)
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];
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if(!(/^(document|window|parent)$/).test(o.containment)) {
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var ce = $(o.containment)[0];
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var co = $(o.containment).offset();
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var over = ($(ce).css("overflow") != 'hidden');
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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+(over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - this.offset.relative.left - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"),10) || 0),
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co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(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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_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.PAGEY_INCLUDES_SCROLL || this.OFFSET_PARENT_NOT_SCROLL_PARENT_Y ? 0 : this.scrollTopParent.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.PAGEX_INCLUDES_SCROLL || this.OFFSET_PARENT_NOT_SCROLL_PARENT_X ? 0 : this.scrollLeftParent.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(event) {
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var o = this.options;
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var position = {
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top: (
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event.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.PAGEY_INCLUDES_SCROLL || this.OFFSET_PARENT_NOT_SCROLL_PARENT_Y ? 0 : this.scrollTopParent.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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event.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.PAGEX_INCLUDES_SCROLL || this.OFFSET_PARENT_NOT_SCROLL_PARENT_X ? 0 : this.scrollLeftParent.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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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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* - 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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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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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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return position;
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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.helper[0] != this.element[0] && !this.cancelHelperRemoval) this.helper.remove();
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//if($.ui.ddmanager) $.ui.ddmanager.current = null;
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this.helper = null;
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this.cancelHelperRemoval = false;
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},
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// From now on bulk stuff - mainly helpers
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_propagate: function(n, event) {
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$.ui.plugin.call(this, n, [event, this.uiHash()]);
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if(n == "drag") this.positionAbs = this._convertPositionTo("absolute"); //The absolute position has to be recalculated after plugins
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return this.element.triggerHandler(n == "drag" ? n : "drag"+n, [event, this.uiHash()], this.options[n]);
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},
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plugins: {},
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uiHash: function(event) {
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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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}));
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$.extend($.ui.draggable, {
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version: "@VERSION",
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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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connectToSortable: false,
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containment: false,
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cssNamespace: "ui",
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cursor: "default",
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cursorAt: null,
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delay: 0,
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distance: 1,
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grid: false,
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handle: false,
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helper: "original",
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iframeFix: false,
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opacity: 1,
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refreshPositions: false,
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revert: false,
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revertDuration: 500,
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scope: "default",
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scroll: false,
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scrollSensitivity: 20,
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scrollSpeed: 20,
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snap: false,
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snapMode: "both",
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snapTolerance: 20,
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stack: false,
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zIndex: null
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}
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});
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$.ui.plugin.add("draggable", "connectToSortable", {
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start: function(event, ui) {
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var inst = $(this).data("draggable");
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inst.sortables = [];
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$(ui.options.connectToSortable).each(function() {
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if($.data(this, 'sortable')) {
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var sortable = $.data(this, 'sortable');
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inst.sortables.push({
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instance: sortable,
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shouldRevert: sortable.options.revert
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});
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sortable._refreshItems(); //Do a one-time refresh at start to refresh the containerCache
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sortable._propagate("activate", event, inst);
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}
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});
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},
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stop: function(event, ui) {
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//If we are still over the sortable, we fake the stop event of the sortable, but also remove helper
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var inst = $(this).data("draggable");
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$.each(inst.sortables, function() {
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if(this.instance.isOver) {
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this.instance.isOver = 0;
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inst.cancelHelperRemoval = true; //Don't remove the helper in the draggable instance
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this.instance.cancelHelperRemoval = false; //Remove it in the sortable instance (so sortable plugins like revert still work)
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if(this.shouldRevert) this.instance.options.revert = true; //revert here
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this.instance._mouseStop(event);
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//Also propagate receive event, since the sortable is actually receiving a element
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this.instance.element.triggerHandler("sortreceive", [event, $.extend(this.instance._ui(), { sender: inst.element })], this.instance.options["receive"]);
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this.instance.options.helper = this.instance.options._helper;
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} else {
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this.instance.cancelHelperRemoval = false; //Remove the helper in the sortable instance
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|
this.instance._propagate("deactivate", event, inst);
|
|
}
|
|
|
|
});
|
|
|
|
},
|
|
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) {
|
|
|
|
if(checkPos.call(inst, 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._propagate("toSortable", event);
|
|
|
|
}
|
|
|
|
//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;
|
|
this.instance.options.revert = false; //No revert here
|
|
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._propagate("fromSortable", event);
|
|
}
|
|
|
|
};
|
|
|
|
});
|
|
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("draggable", "cursor", {
|
|
start: function(event, ui) {
|
|
var t = $('body');
|
|
if (t.css("cursor")) ui.options._cursor = t.css("cursor");
|
|
t.css("cursor", ui.options.cursor);
|
|
},
|
|
stop: function(event, ui) {
|
|
if (ui.options._cursor) $('body').css("cursor", ui.options._cursor);
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("draggable", "iframeFix", {
|
|
start: function(event, ui) {
|
|
$(ui.options.iframeFix === true ? "iframe" : ui.options.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);
|
|
if(t.css("opacity")) ui.options._opacity = t.css("opacity");
|
|
t.css('opacity', ui.options.opacity);
|
|
},
|
|
stop: function(event, ui) {
|
|
if(ui.options._opacity) $(ui.helper).css('opacity', ui.options._opacity);
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("draggable", "scroll", {
|
|
start: function(event, ui) {
|
|
var o = ui.options;
|
|
var i = $(this).data("draggable");
|
|
|
|
i.overflowY = function(el) {
|
|
do { if(/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-y'))) return el; el = el.parent(); } while (el[0].parentNode);
|
|
return $(document);
|
|
}(this);
|
|
i.overflowX = function(el) {
|
|
do { if(/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-x'))) return el; el = el.parent(); } while (el[0].parentNode);
|
|
return $(document);
|
|
}(this);
|
|
|
|
if(i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') i.overflowYOffset = i.overflowY.offset();
|
|
if(i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') i.overflowXOffset = i.overflowX.offset();
|
|
|
|
},
|
|
drag: function(event, ui) {
|
|
|
|
var o = ui.options, scrolled = false;
|
|
var i = $(this).data("draggable");
|
|
|
|
if(i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') {
|
|
if((i.overflowYOffset.top + i.overflowY[0].offsetHeight) - event.pageY < o.scrollSensitivity)
|
|
i.overflowY[0].scrollTop = scrolled = i.overflowY[0].scrollTop + o.scrollSpeed;
|
|
if(event.pageY - i.overflowYOffset.top < o.scrollSensitivity)
|
|
i.overflowY[0].scrollTop = scrolled = i.overflowY[0].scrollTop - o.scrollSpeed;
|
|
} else {
|
|
if(event.pageY - $(document).scrollTop() < o.scrollSensitivity)
|
|
scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
|
|
if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity)
|
|
scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
|
|
}
|
|
|
|
if(i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') {
|
|
if((i.overflowXOffset.left + i.overflowX[0].offsetWidth) - event.pageX < o.scrollSensitivity)
|
|
i.overflowX[0].scrollLeft = scrolled = i.overflowX[0].scrollLeft + o.scrollSpeed;
|
|
if(event.pageX - i.overflowXOffset.left < o.scrollSensitivity)
|
|
i.overflowX[0].scrollLeft = scrolled = i.overflowX[0].scrollLeft - o.scrollSpeed;
|
|
} else {
|
|
if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity)
|
|
scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
|
|
if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
|
|
scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
|
|
}
|
|
|
|
if(scrolled !== false)
|
|
$.ui.ddmanager.prepareOffsets(i, event);
|
|
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("draggable", "snap", {
|
|
start: function(event, ui) {
|
|
|
|
var inst = $(this).data("draggable");
|
|
inst.snapElements = [];
|
|
|
|
$(ui.options.snap.constructor != String ? ( ui.options.snap.items || ':data(draggable)' ) : ui.options.snap).each(function() {
|
|
var $t = $(this); var $o = $t.offset();
|
|
if(this != inst.element[0]) inst.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");
|
|
var d = ui.options.snapTolerance;
|
|
|
|
var x1 = ui.absolutePosition.left, x2 = x1 + inst.helperProportions.width,
|
|
y1 = ui.absolutePosition.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(ui.options.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;
|
|
if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b, left: 0 }).top;
|
|
if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left;
|
|
if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r }).left;
|
|
}
|
|
|
|
var first = (ts || bs || ls || rs);
|
|
|
|
if(ui.options.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;
|
|
if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top;
|
|
if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l }).left;
|
|
if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).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 group = $.makeArray($(ui.options.stack.group)).sort(function(a,b) {
|
|
return (parseInt($(a).css("zIndex"),10) || ui.options.stack.min) - (parseInt($(b).css("zIndex"),10) || ui.options.stack.min);
|
|
});
|
|
|
|
$(group).each(function(i) {
|
|
this.style.zIndex = ui.options.stack.min + i;
|
|
});
|
|
|
|
this[0].style.zIndex = ui.options.stack.min + group.length;
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("draggable", "zIndex", {
|
|
start: function(event, ui) {
|
|
var t = $(ui.helper);
|
|
if(t.css("zIndex")) ui.options._zIndex = t.css("zIndex");
|
|
t.css('zIndex', ui.options.zIndex);
|
|
},
|
|
stop: function(event, ui) {
|
|
if(ui.options._zIndex) $(ui.helper).css('zIndex', ui.options._zIndex);
|
|
}
|
|
});
|
|
|
|
})(jQuery);
|