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bae06d2b1e
Use the item which has the least distance between the mouse pointer and one of its borders to rearrange, with direction being determined by the nearest border. Also we use this algorithm to rearrange even when currentContainer is not changed to override the defective rearrangment in _mouseDrag
1097 lines
40 KiB
JavaScript
1097 lines
40 KiB
JavaScript
/*!
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* jQuery UI Sortable @VERSION
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* http://jqueryui.com
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*
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* Copyright 2012 jQuery Foundation and other contributors
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* Released under the MIT license.
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* http://jquery.org/license
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*
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* http://api.jqueryui.com/sortable/
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*
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* Depends:
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* jquery.ui.core.js
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* jquery.ui.mouse.js
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* jquery.ui.widget.js
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*/
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(function( $, undefined ) {
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$.widget("ui.sortable", $.ui.mouse, {
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version: "@VERSION",
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widgetEventPrefix: "sort",
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ready: false,
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options: {
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appendTo: "parent",
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axis: false,
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connectWith: false,
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containment: false,
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cursor: 'auto',
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cursorAt: false,
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dropOnEmpty: true,
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forcePlaceholderSize: false,
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forceHelperSize: false,
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grid: false,
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handle: false,
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helper: "original",
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items: '> *',
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opacity: false,
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placeholder: false,
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revert: false,
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scroll: true,
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scrollSensitivity: 20,
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scrollSpeed: 20,
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scope: "default",
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tolerance: "intersect",
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zIndex: 1000
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},
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_create: function() {
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var o = this.options;
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this.containerCache = {};
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this.element.addClass("ui-sortable");
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//Get the items
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this.refresh();
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//Let's determine if the items are being displayed horizontally
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this.floating = this.items.length ? o.axis === 'x' || (/left|right/).test(this.items[0].item.css('float')) || (/inline|table-cell/).test(this.items[0].item.css('display')) : false;
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//Let's determine the parent's offset
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this.offset = this.element.offset();
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//Initialize mouse events for interaction
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this._mouseInit();
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//We're ready to go
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this.ready = true
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},
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_destroy: function() {
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this.element
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.removeClass("ui-sortable ui-sortable-disabled");
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this._mouseDestroy();
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for ( var i = this.items.length - 1; i >= 0; i-- )
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this.items[i].item.removeData(this.widgetName + "-item");
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return this;
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},
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_setOption: function(key, value){
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if ( key === "disabled" ) {
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this.options[ key ] = value;
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this.widget().toggleClass( "ui-sortable-disabled", !!value );
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} else {
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// Don't call widget base _setOption for disable as it adds ui-state-disabled class
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$.Widget.prototype._setOption.apply(this, arguments);
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}
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},
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_mouseCapture: function(event, overrideHandle) {
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var that = this;
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if (this.reverting) {
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return false;
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}
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if(this.options.disabled || this.options.type == 'static') return false;
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//We have to refresh the items data once first
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this._refreshItems(event);
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//Find out if the clicked node (or one of its parents) is a actual item in this.items
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var currentItem = null, nodes = $(event.target).parents().each(function() {
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if($.data(this, that.widgetName + '-item') == that) {
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currentItem = $(this);
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return false;
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}
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});
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if($.data(event.target, that.widgetName + '-item') == that) currentItem = $(event.target);
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if(!currentItem) return false;
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if(this.options.handle && !overrideHandle) {
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var validHandle = false;
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$(this.options.handle, currentItem).find("*").andSelf().each(function() { if(this == event.target) validHandle = true; });
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if(!validHandle) return false;
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}
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this.currentItem = currentItem;
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this._removeCurrentsFromItems();
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return true;
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},
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_mouseStart: function(event, overrideHandle, noActivation) {
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var o = this.options;
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this.currentContainer = this;
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//We only need to call refreshPositions, because the refreshItems call has been moved to mouseCapture
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this.refreshPositions();
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//Create and append the visible helper
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this.helper = this._createHelper(event);
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//Cache the helper size
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this._cacheHelperProportions();
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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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//Cache the margins of the original element
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this._cacheMargins();
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//Get the next scrolling parent
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this.scrollParent = this.helper.scrollParent();
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//The element's absolute position on the page minus margins
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this.offset = this.currentItem.offset();
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this.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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$.extend(this.offset, {
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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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parent: this._getParentOffset(),
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relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
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});
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// Only after we got the offset, we can change the helper's position to absolute
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// TODO: Still need to figure out a way to make relative sorting possible
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this.helper.css("position", "absolute");
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this.cssPosition = this.helper.css("position");
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//Generate the original position
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this.originalPosition = this._generatePosition(event);
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this.originalPageX = event.pageX;
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this.originalPageY = event.pageY;
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//Adjust the mouse offset relative to the helper if 'cursorAt' is supplied
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(o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt));
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//Cache the former DOM position
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this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] };
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//If the helper is not the original, hide the original so it's not playing any role during the drag, won't cause anything bad this way
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if(this.helper[0] != this.currentItem[0]) {
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this.currentItem.hide();
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}
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//Create the placeholder
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this._createPlaceholder();
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//Set a containment if given in the options
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if(o.containment)
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this._setContainment();
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if(o.cursor) { // cursor option
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if ($('body').css("cursor")) this._storedCursor = $('body').css("cursor");
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$('body').css("cursor", o.cursor);
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}
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if(o.opacity) { // opacity option
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if (this.helper.css("opacity")) this._storedOpacity = this.helper.css("opacity");
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this.helper.css("opacity", o.opacity);
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}
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if(o.zIndex) { // zIndex option
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if (this.helper.css("zIndex")) this._storedZIndex = this.helper.css("zIndex");
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this.helper.css("zIndex", o.zIndex);
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}
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//Prepare scrolling
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if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML')
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this.overflowOffset = this.scrollParent.offset();
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//Call callbacks
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this._trigger("start", event, this._uiHash());
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//Recache the helper size
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if(!this._preserveHelperProportions)
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this._cacheHelperProportions();
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//Post 'activate' events to possible containers
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if(!noActivation) {
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for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i]._trigger("activate", event, this._uiHash(this)); }
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}
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//Prepare possible droppables
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if($.ui.ddmanager)
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$.ui.ddmanager.current = this;
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if ($.ui.ddmanager && !o.dropBehaviour)
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$.ui.ddmanager.prepareOffsets(this, event);
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this.dragging = true;
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this.helper.addClass("ui-sortable-helper");
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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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if (!this.lastPositionAbs) {
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this.lastPositionAbs = this.positionAbs;
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}
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//Do scrolling
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if(this.options.scroll) {
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var o = this.options, scrolled = false;
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if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') {
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if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity)
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this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed;
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else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity)
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this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed;
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if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity)
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this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed;
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else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity)
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this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed;
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} else {
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if(event.pageY - $(document).scrollTop() < o.scrollSensitivity)
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scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
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else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity)
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scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
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if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity)
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scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
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else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
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scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
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}
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if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour)
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$.ui.ddmanager.prepareOffsets(this, event);
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}
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//Regenerate the absolute position used for position checks
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this.positionAbs = this._convertPositionTo("absolute");
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//Set the helper 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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//Rearrange
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for (var i = this.items.length - 1; i >= 0; i--) {
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//Cache variables and intersection, continue if no intersection
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var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item);
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if (!intersection) continue;
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// Only put the placeholder inside the current Container, skip all
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// items form other containers. This works because when moving
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// an item from one container to another the
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// currentContainer is switched before the placeholder is moved.
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//
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// Without this moving items in "sub-sortables" can cause the placeholder to jitter
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// beetween the outer and inner container.
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if (item.instance !== this.currentContainer) continue;
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if (itemElement != this.currentItem[0] //cannot intersect with itself
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&& this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before
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&& !$.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked
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&& (this.options.type == 'semi-dynamic' ? !$.contains(this.element[0], itemElement) : true)
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//&& itemElement.parentNode == this.placeholder[0].parentNode // only rearrange items within the same container
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) {
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this.direction = intersection == 1 ? "down" : "up";
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if (this.options.tolerance == "pointer" || this._intersectsWithSides(item)) {
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this._rearrange(event, item);
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} else {
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break;
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}
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this._trigger("change", event, this._uiHash());
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break;
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}
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}
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//Post events to containers
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this._contactContainers(event);
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//Interconnect with droppables
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if($.ui.ddmanager) $.ui.ddmanager.drag(this, event);
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//Call callbacks
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this._trigger('sort', event, this._uiHash());
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this.lastPositionAbs = this.positionAbs;
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return false;
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},
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_mouseStop: function(event, noPropagation) {
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if(!event) return;
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//If we are using droppables, inform the manager about the drop
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if ($.ui.ddmanager && !this.options.dropBehaviour)
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$.ui.ddmanager.drop(this, event);
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if(this.options.revert) {
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var that = this;
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var cur = this.placeholder.offset();
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this.reverting = true;
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$(this.helper).animate({
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left: cur.left - this.offset.parent.left - this.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft),
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top: cur.top - this.offset.parent.top - this.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop)
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}, parseInt(this.options.revert, 10) || 500, function() {
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that._clear(event);
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});
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} else {
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this._clear(event, noPropagation);
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}
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return false;
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},
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cancel: function() {
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if(this.dragging) {
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this._mouseUp({ target: null });
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if(this.options.helper == "original")
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this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
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else
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this.currentItem.show();
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//Post deactivating events to containers
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for (var i = this.containers.length - 1; i >= 0; i--){
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this.containers[i]._trigger("deactivate", null, this._uiHash(this));
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if(this.containers[i].containerCache.over) {
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this.containers[i]._trigger("out", null, this._uiHash(this));
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this.containers[i].containerCache.over = 0;
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}
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}
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}
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if (this.placeholder) {
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//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
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if(this.placeholder[0].parentNode) this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
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if(this.options.helper != "original" && this.helper && this.helper[0].parentNode) this.helper.remove();
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$.extend(this, {
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helper: null,
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dragging: false,
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reverting: false,
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_noFinalSort: null
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});
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if(this.domPosition.prev) {
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$(this.domPosition.prev).after(this.currentItem);
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} else {
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$(this.domPosition.parent).prepend(this.currentItem);
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}
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}
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return this;
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},
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serialize: function(o) {
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var items = this._getItemsAsjQuery(o && o.connected);
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var str = []; o = o || {};
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$(items).each(function() {
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var res = ($(o.item || this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/));
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if(res) str.push((o.key || res[1]+'[]')+'='+(o.key && o.expression ? res[1] : res[2]));
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});
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if(!str.length && o.key) {
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str.push(o.key + '=');
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}
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return str.join('&');
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},
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toArray: function(o) {
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var items = this._getItemsAsjQuery(o && o.connected);
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var ret = []; o = o || {};
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items.each(function() { ret.push($(o.item || this).attr(o.attribute || 'id') || ''); });
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return ret;
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},
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/* Be careful with the following core functions */
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_intersectsWith: function(item) {
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var x1 = this.positionAbs.left,
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x2 = x1 + this.helperProportions.width,
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y1 = this.positionAbs.top,
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y2 = y1 + this.helperProportions.height;
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var l = item.left,
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r = l + item.width,
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t = item.top,
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b = t + item.height;
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var dyClick = this.offset.click.top,
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dxClick = this.offset.click.left;
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var isOverElement = (y1 + dyClick) > t && (y1 + dyClick) < b && (x1 + dxClick) > l && (x1 + dxClick) < r;
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if( this.options.tolerance == "pointer"
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|| this.options.forcePointerForContainers
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|| (this.options.tolerance != "pointer" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height'])
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) {
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return isOverElement;
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} else {
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return (l < x1 + (this.helperProportions.width / 2) // Right Half
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&& x2 - (this.helperProportions.width / 2) < r // Left Half
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&& t < y1 + (this.helperProportions.height / 2) // Bottom Half
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&& y2 - (this.helperProportions.height / 2) < b ); // Top Half
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}
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},
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_intersectsWithPointer: function(item) {
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var isOverElementHeight = (this.options.axis === 'x') || $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height),
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isOverElementWidth = (this.options.axis === 'y') || $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width),
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isOverElement = isOverElementHeight && isOverElementWidth,
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verticalDirection = this._getDragVerticalDirection(),
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horizontalDirection = this._getDragHorizontalDirection();
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if (!isOverElement)
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return false;
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return this.floating ?
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( ((horizontalDirection && horizontalDirection == "right") || verticalDirection == "down") ? 2 : 1 )
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: ( verticalDirection && (verticalDirection == "down" ? 2 : 1) );
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},
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_intersectsWithSides: function(item) {
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var isOverBottomHalf = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height),
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isOverRightHalf = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left + (item.width/2), item.width),
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verticalDirection = this._getDragVerticalDirection(),
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horizontalDirection = this._getDragHorizontalDirection();
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if (this.floating && horizontalDirection) {
|
|
return ((horizontalDirection == "right" && isOverRightHalf) || (horizontalDirection == "left" && !isOverRightHalf));
|
|
} else {
|
|
return verticalDirection && ((verticalDirection == "down" && isOverBottomHalf) || (verticalDirection == "up" && !isOverBottomHalf));
|
|
}
|
|
|
|
},
|
|
|
|
_getDragVerticalDirection: function() {
|
|
var delta = this.positionAbs.top - this.lastPositionAbs.top;
|
|
return delta != 0 && (delta > 0 ? "down" : "up");
|
|
},
|
|
|
|
_getDragHorizontalDirection: function() {
|
|
var delta = this.positionAbs.left - this.lastPositionAbs.left;
|
|
return delta != 0 && (delta > 0 ? "right" : "left");
|
|
},
|
|
|
|
refresh: function(event) {
|
|
this._refreshItems(event);
|
|
this.refreshPositions();
|
|
return this;
|
|
},
|
|
|
|
_connectWith: function() {
|
|
var options = this.options;
|
|
return options.connectWith.constructor == String
|
|
? [options.connectWith]
|
|
: options.connectWith;
|
|
},
|
|
|
|
_getItemsAsjQuery: function(connected) {
|
|
|
|
var items = [];
|
|
var queries = [];
|
|
var connectWith = this._connectWith();
|
|
|
|
if(connectWith && connected) {
|
|
for (var i = connectWith.length - 1; i >= 0; i--){
|
|
var cur = $(connectWith[i]);
|
|
for (var j = cur.length - 1; j >= 0; j--){
|
|
var inst = $.data(cur[j], this.widgetName);
|
|
if(inst && inst != this && !inst.options.disabled) {
|
|
queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper").not('.ui-sortable-placeholder'), inst]);
|
|
}
|
|
};
|
|
};
|
|
}
|
|
|
|
queries.push([$.isFunction(this.options.items) ? this.options.items.call(this.element, null, { options: this.options, item: this.currentItem }) : $(this.options.items, this.element).not(".ui-sortable-helper").not('.ui-sortable-placeholder'), this]);
|
|
|
|
for (var i = queries.length - 1; i >= 0; i--){
|
|
queries[i][0].each(function() {
|
|
items.push(this);
|
|
});
|
|
};
|
|
|
|
return $(items);
|
|
|
|
},
|
|
|
|
_removeCurrentsFromItems: function() {
|
|
|
|
var list = this.currentItem.find(":data(" + this.widgetName + "-item)");
|
|
|
|
this.items = $.grep(this.items, function (item) {
|
|
for (var j=0; j < list.length; j++) {
|
|
if(list[j] == item.item[0])
|
|
return false;
|
|
};
|
|
return true;
|
|
});
|
|
|
|
},
|
|
|
|
_refreshItems: function(event) {
|
|
|
|
this.items = [];
|
|
this.containers = [this];
|
|
var items = this.items;
|
|
var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]];
|
|
var connectWith = this._connectWith();
|
|
|
|
if(connectWith && this.ready) { //Shouldn't be run the first time through due to massive slow-down
|
|
for (var i = connectWith.length - 1; i >= 0; i--){
|
|
var cur = $(connectWith[i]);
|
|
for (var j = cur.length - 1; j >= 0; j--){
|
|
var inst = $.data(cur[j], this.widgetName);
|
|
if(inst && inst != this && !inst.options.disabled) {
|
|
queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element[0], event, { item: this.currentItem }) : $(inst.options.items, inst.element), inst]);
|
|
this.containers.push(inst);
|
|
}
|
|
};
|
|
};
|
|
}
|
|
|
|
for (var i = queries.length - 1; i >= 0; i--) {
|
|
var targetData = queries[i][1];
|
|
var _queries = queries[i][0];
|
|
|
|
for (var j=0, queriesLength = _queries.length; j < queriesLength; j++) {
|
|
var item = $(_queries[j]);
|
|
|
|
item.data(this.widgetName + '-item', targetData); // Data for target checking (mouse manager)
|
|
|
|
items.push({
|
|
item: item,
|
|
instance: targetData,
|
|
width: 0, height: 0,
|
|
left: 0, top: 0
|
|
});
|
|
};
|
|
};
|
|
|
|
},
|
|
|
|
refreshPositions: function(fast) {
|
|
|
|
//This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change
|
|
if(this.offsetParent && this.helper) {
|
|
this.offset.parent = this._getParentOffset();
|
|
}
|
|
|
|
for (var i = this.items.length - 1; i >= 0; i--){
|
|
var item = this.items[i];
|
|
|
|
//We ignore calculating positions of all connected containers when we're not over them
|
|
if(item.instance != this.currentContainer && this.currentContainer && item.item[0] != this.currentItem[0])
|
|
continue;
|
|
|
|
var t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item;
|
|
|
|
if (!fast) {
|
|
item.width = t.outerWidth();
|
|
item.height = t.outerHeight();
|
|
}
|
|
|
|
var p = t.offset();
|
|
item.left = p.left;
|
|
item.top = p.top;
|
|
};
|
|
|
|
if(this.options.custom && this.options.custom.refreshContainers) {
|
|
this.options.custom.refreshContainers.call(this);
|
|
} else {
|
|
for (var i = this.containers.length - 1; i >= 0; i--){
|
|
var p = this.containers[i].element.offset();
|
|
this.containers[i].containerCache.left = p.left;
|
|
this.containers[i].containerCache.top = p.top;
|
|
this.containers[i].containerCache.width = this.containers[i].element.outerWidth();
|
|
this.containers[i].containerCache.height = this.containers[i].element.outerHeight();
|
|
};
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
_createPlaceholder: function(that) {
|
|
that = that || this;
|
|
var o = that.options;
|
|
|
|
if(!o.placeholder || o.placeholder.constructor == String) {
|
|
var className = o.placeholder;
|
|
o.placeholder = {
|
|
element: function() {
|
|
|
|
var el = $(document.createElement(that.currentItem[0].nodeName))
|
|
.addClass(className || that.currentItem[0].className+" ui-sortable-placeholder")
|
|
.removeClass("ui-sortable-helper")[0];
|
|
|
|
if(!className)
|
|
el.style.visibility = "hidden";
|
|
|
|
return el;
|
|
},
|
|
update: function(container, p) {
|
|
|
|
// 1. If a className is set as 'placeholder option, we don't force sizes - the class is responsible for that
|
|
// 2. The option 'forcePlaceholderSize can be enabled to force it even if a class name is specified
|
|
if(className && !o.forcePlaceholderSize) return;
|
|
|
|
//If the element doesn't have a actual height by itself (without styles coming from a stylesheet), it receives the inline height from the dragged item
|
|
if(!p.height()) { p.height(that.currentItem.innerHeight() - parseInt(that.currentItem.css('paddingTop')||0, 10) - parseInt(that.currentItem.css('paddingBottom')||0, 10)); };
|
|
if(!p.width()) { p.width(that.currentItem.innerWidth() - parseInt(that.currentItem.css('paddingLeft')||0, 10) - parseInt(that.currentItem.css('paddingRight')||0, 10)); };
|
|
}
|
|
};
|
|
}
|
|
|
|
//Create the placeholder
|
|
that.placeholder = $(o.placeholder.element.call(that.element, that.currentItem));
|
|
|
|
//Append it after the actual current item
|
|
that.currentItem.after(that.placeholder);
|
|
|
|
//Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
|
|
o.placeholder.update(that, that.placeholder);
|
|
|
|
},
|
|
|
|
_contactContainers: function(event) {
|
|
|
|
// get innermost container that intersects with item
|
|
var innermostContainer = null, innermostIndex = null;
|
|
|
|
|
|
for (var i = this.containers.length - 1; i >= 0; i--){
|
|
|
|
// never consider a container that's located within the item itself
|
|
if($.contains(this.currentItem[0], this.containers[i].element[0]))
|
|
continue;
|
|
|
|
if(this._intersectsWith(this.containers[i].containerCache)) {
|
|
|
|
// if we've already found a container and it's more "inner" than this, then continue
|
|
if(innermostContainer && $.contains(this.containers[i].element[0], innermostContainer.element[0]))
|
|
continue;
|
|
|
|
innermostContainer = this.containers[i];
|
|
innermostIndex = i;
|
|
|
|
} else {
|
|
// container doesn't intersect. trigger "out" event if necessary
|
|
if(this.containers[i].containerCache.over) {
|
|
this.containers[i]._trigger("out", event, this._uiHash(this));
|
|
this.containers[i].containerCache.over = 0;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
// if no intersecting containers found, return
|
|
if(!innermostContainer) return;
|
|
|
|
// move the item into the container if it's not there already
|
|
if(this.containers.length === 1) {
|
|
this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
|
|
this.containers[innermostIndex].containerCache.over = 1;
|
|
} else {
|
|
|
|
//When entering a new container, we will find the item with the least distance and append our item near it
|
|
var dist = 10000; var itemWithLeastDistance = null;
|
|
var posProperty = this.containers[innermostIndex].floating ? 'left' : 'top';
|
|
var sizeProperty = this.containers[innermostIndex].floating ? 'width' : 'height';
|
|
var base = this.positionAbs[posProperty] + this.offset.click[posProperty];
|
|
for (var j = this.items.length - 1; j >= 0; j--) {
|
|
if(!$.contains(this.containers[innermostIndex].element[0], this.items[j].item[0])) continue;
|
|
if(this.items[j].item[0] == this.currentItem[0]) continue;
|
|
var cur = this.items[j].item.offset()[posProperty];
|
|
var nearBottom = false;
|
|
if(Math.abs(cur - base) > Math.abs(cur + this.items[j][sizeProperty] - base)){
|
|
nearBottom = true;
|
|
cur += this.items[j][sizeProperty];
|
|
}
|
|
|
|
if(Math.abs(cur - base) < dist) {
|
|
dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j];
|
|
this.direction = nearBottom ? "up": "down";
|
|
}
|
|
}
|
|
|
|
if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled
|
|
return;
|
|
|
|
this.currentContainer = this.containers[innermostIndex];
|
|
itemWithLeastDistance ? this._rearrange(event, itemWithLeastDistance, null, true) : this._rearrange(event, null, this.containers[innermostIndex].element, true);
|
|
this._trigger("change", event, this._uiHash());
|
|
this.containers[innermostIndex]._trigger("change", event, this._uiHash(this));
|
|
|
|
//Update the placeholder
|
|
this.options.placeholder.update(this.currentContainer, this.placeholder);
|
|
|
|
this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
|
|
this.containers[innermostIndex].containerCache.over = 1;
|
|
}
|
|
|
|
|
|
},
|
|
|
|
_createHelper: function(event) {
|
|
|
|
var o = this.options;
|
|
var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper == 'clone' ? this.currentItem.clone() : this.currentItem);
|
|
|
|
if(!helper.parents('body').length) //Add the helper to the DOM if that didn't happen already
|
|
$(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]);
|
|
|
|
if(helper[0] == this.currentItem[0])
|
|
this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left") };
|
|
|
|
if(helper[0].style.width == '' || o.forceHelperSize) helper.width(this.currentItem.width());
|
|
if(helper[0].style.height == '' || o.forceHelperSize) helper.height(this.currentItem.height());
|
|
|
|
return helper;
|
|
|
|
},
|
|
|
|
_adjustOffsetFromHelper: function(obj) {
|
|
if (typeof obj == 'string') {
|
|
obj = obj.split(' ');
|
|
}
|
|
if ($.isArray(obj)) {
|
|
obj = {left: +obj[0], top: +obj[1] || 0};
|
|
}
|
|
if ('left' in obj) {
|
|
this.offset.click.left = obj.left + this.margins.left;
|
|
}
|
|
if ('right' in obj) {
|
|
this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
|
|
}
|
|
if ('top' in obj) {
|
|
this.offset.click.top = obj.top + this.margins.top;
|
|
}
|
|
if ('bottom' in obj) {
|
|
this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
|
|
}
|
|
},
|
|
|
|
_getParentOffset: function() {
|
|
|
|
|
|
//Get the offsetParent and cache its position
|
|
this.offsetParent = this.helper.offsetParent();
|
|
var po = this.offsetParent.offset();
|
|
|
|
// This is a special case where we need to modify a offset calculated on start, since the following happened:
|
|
// 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
|
|
// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
|
|
// the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
|
|
if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.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' && $.ui.ie)) //Ugly IE fix
|
|
po = { top: 0, left: 0 };
|
|
|
|
return {
|
|
top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
|
|
left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
|
|
};
|
|
|
|
},
|
|
|
|
_getRelativeOffset: function() {
|
|
|
|
if(this.cssPosition == "relative") {
|
|
var p = this.currentItem.position();
|
|
return {
|
|
top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(),
|
|
left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft()
|
|
};
|
|
} else {
|
|
return { top: 0, left: 0 };
|
|
}
|
|
|
|
},
|
|
|
|
_cacheMargins: function() {
|
|
this.margins = {
|
|
left: (parseInt(this.currentItem.css("marginLeft"),10) || 0),
|
|
top: (parseInt(this.currentItem.css("marginTop"),10) || 0)
|
|
};
|
|
},
|
|
|
|
_cacheHelperProportions: function() {
|
|
this.helperProportions = {
|
|
width: this.helper.outerWidth(),
|
|
height: this.helper.outerHeight()
|
|
};
|
|
},
|
|
|
|
_setContainment: function() {
|
|
|
|
var o = this.options;
|
|
if(o.containment == 'parent') o.containment = this.helper[0].parentNode;
|
|
if(o.containment == 'document' || o.containment == 'window') this.containment = [
|
|
0 - this.offset.relative.left - this.offset.parent.left,
|
|
0 - this.offset.relative.top - this.offset.parent.top,
|
|
$(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left,
|
|
($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top
|
|
];
|
|
|
|
if(!(/^(document|window|parent)$/).test(o.containment)) {
|
|
var ce = $(o.containment)[0];
|
|
var co = $(o.containment).offset();
|
|
var over = ($(ce).css("overflow") != 'hidden');
|
|
|
|
this.containment = [
|
|
co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left,
|
|
co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top,
|
|
co.left+(over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - (parseInt($(ce).css("paddingRight"),10) || 0) - this.helperProportions.width - this.margins.left,
|
|
co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - (parseInt($(ce).css("paddingBottom"),10) || 0) - this.helperProportions.height - this.margins.top
|
|
];
|
|
}
|
|
|
|
},
|
|
|
|
_convertPositionTo: function(d, pos) {
|
|
|
|
if(!pos) pos = this.position;
|
|
var mod = d == "absolute" ? 1 : -1;
|
|
var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.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)
|
|
- ( ( 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)
|
|
- ( ( 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 && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
|
|
|
|
// This is another very weird special case that only happens for relative elements:
|
|
// 1. If the css position is relative
|
|
// 2. and the scroll parent is the document or similar to the offset parent
|
|
// we have to refresh the relative offset during the scroll so there are no jumps
|
|
if(this.cssPosition == 'relative' && !(this.scrollParent[0] != document && this.scrollParent[0] != this.offsetParent[0])) {
|
|
this.offset.relative = this._getRelativeOffset();
|
|
}
|
|
|
|
var pageX = event.pageX;
|
|
var pageY = event.pageY;
|
|
|
|
/*
|
|
* - Position constraining -
|
|
* Constrain the position to a mix of grid, containment.
|
|
*/
|
|
|
|
if(this.originalPosition) { //If we are not dragging yet, we won't check for options
|
|
|
|
if(this.containment) {
|
|
if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left;
|
|
if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top;
|
|
if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left;
|
|
if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top;
|
|
}
|
|
|
|
if(o.grid) {
|
|
var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1];
|
|
pageY = this.containment ? (!(top - this.offset.click.top < this.containment[1] || top - this.offset.click.top > this.containment[3]) ? top : (!(top - this.offset.click.top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;
|
|
|
|
var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0];
|
|
pageX = this.containment ? (!(left - this.offset.click.left < this.containment[0] || left - this.offset.click.left > this.containment[2]) ? left : (!(left - this.offset.click.left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
|
|
}
|
|
|
|
}
|
|
|
|
return {
|
|
top: (
|
|
pageY // The absolute mouse position
|
|
- this.offset.click.top // Click offset (relative to the element)
|
|
- this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent
|
|
- this.offset.parent.top // The offsetParent's offset without borders (offset + border)
|
|
+ ( ( 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)
|
|
+ ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ))
|
|
)
|
|
};
|
|
|
|
},
|
|
|
|
_rearrange: function(event, i, a, hardRefresh) {
|
|
|
|
a ? a[0].appendChild(this.placeholder[0]) : i.item[0].parentNode.insertBefore(this.placeholder[0], (this.direction == 'down' ? i.item[0] : i.item[0].nextSibling));
|
|
|
|
//Various things done here to improve the performance:
|
|
// 1. we create a setTimeout, that calls refreshPositions
|
|
// 2. on the instance, we have a counter variable, that get's higher after every append
|
|
// 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same
|
|
// 4. this lets only the last addition to the timeout stack through
|
|
this.counter = this.counter ? ++this.counter : 1;
|
|
var counter = this.counter;
|
|
|
|
this._delay(function() {
|
|
if(counter == this.counter) this.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove
|
|
});
|
|
|
|
},
|
|
|
|
_clear: function(event, noPropagation) {
|
|
|
|
this.reverting = false;
|
|
// We delay all events that have to be triggered to after the point where the placeholder has been removed and
|
|
// everything else normalized again
|
|
var delayedTriggers = [];
|
|
|
|
// We first have to update the dom position of the actual currentItem
|
|
// Note: don't do it if the current item is already removed (by a user), or it gets reappended (see #4088)
|
|
if(!this._noFinalSort && this.currentItem.parent().length) this.placeholder.before(this.currentItem);
|
|
this._noFinalSort = null;
|
|
|
|
if(this.helper[0] == this.currentItem[0]) {
|
|
for(var i in this._storedCSS) {
|
|
if(this._storedCSS[i] == 'auto' || this._storedCSS[i] == 'static') this._storedCSS[i] = '';
|
|
}
|
|
this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
|
|
} else {
|
|
this.currentItem.show();
|
|
}
|
|
|
|
if(this.fromOutside && !noPropagation) delayedTriggers.push(function(event) { this._trigger("receive", event, this._uiHash(this.fromOutside)); });
|
|
if((this.fromOutside || this.domPosition.prev != this.currentItem.prev().not(".ui-sortable-helper")[0] || this.domPosition.parent != this.currentItem.parent()[0]) && !noPropagation) delayedTriggers.push(function(event) { this._trigger("update", event, this._uiHash()); }); //Trigger update callback if the DOM position has changed
|
|
|
|
// Check if the items Container has Changed and trigger appropriate
|
|
// events.
|
|
if (this !== this.currentContainer) {
|
|
if(!noPropagation) {
|
|
delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); });
|
|
delayedTriggers.push((function(c) { return function(event) { c._trigger("receive", event, this._uiHash(this)); }; }).call(this, this.currentContainer));
|
|
delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this)); }; }).call(this, this.currentContainer));
|
|
}
|
|
}
|
|
|
|
|
|
//Post events to containers
|
|
for (var i = this.containers.length - 1; i >= 0; i--){
|
|
if(!noPropagation) delayedTriggers.push((function(c) { return function(event) { c._trigger("deactivate", event, this._uiHash(this)); }; }).call(this, this.containers[i]));
|
|
if(this.containers[i].containerCache.over) {
|
|
delayedTriggers.push((function(c) { return function(event) { c._trigger("out", event, this._uiHash(this)); }; }).call(this, this.containers[i]));
|
|
this.containers[i].containerCache.over = 0;
|
|
}
|
|
}
|
|
|
|
//Do what was originally in plugins
|
|
if(this._storedCursor) $('body').css("cursor", this._storedCursor); //Reset cursor
|
|
if(this._storedOpacity) this.helper.css("opacity", this._storedOpacity); //Reset opacity
|
|
if(this._storedZIndex) this.helper.css("zIndex", this._storedZIndex == 'auto' ? '' : this._storedZIndex); //Reset z-index
|
|
|
|
this.dragging = false;
|
|
if(this.cancelHelperRemoval) {
|
|
if(!noPropagation) {
|
|
this._trigger("beforeStop", event, this._uiHash());
|
|
for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events
|
|
this._trigger("stop", event, this._uiHash());
|
|
}
|
|
|
|
this.fromOutside = false;
|
|
return false;
|
|
}
|
|
|
|
if(!noPropagation) this._trigger("beforeStop", event, this._uiHash());
|
|
|
|
//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
|
|
this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
|
|
|
|
if(this.helper[0] != this.currentItem[0]) this.helper.remove(); this.helper = null;
|
|
|
|
if(!noPropagation) {
|
|
for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events
|
|
this._trigger("stop", event, this._uiHash());
|
|
}
|
|
|
|
this.fromOutside = false;
|
|
return true;
|
|
|
|
},
|
|
|
|
_trigger: function() {
|
|
if ($.Widget.prototype._trigger.apply(this, arguments) === false) {
|
|
this.cancel();
|
|
}
|
|
},
|
|
|
|
_uiHash: function(_inst) {
|
|
var inst = _inst || this;
|
|
return {
|
|
helper: inst.helper,
|
|
placeholder: inst.placeholder || $([]),
|
|
position: inst.position,
|
|
originalPosition: inst.originalPosition,
|
|
offset: inst.positionAbs,
|
|
item: inst.currentItem,
|
|
sender: _inst ? _inst.element : null
|
|
};
|
|
}
|
|
|
|
});
|
|
|
|
})(jQuery);
|