mirror of
https://github.com/jquery/jquery-ui.git
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954 lines
32 KiB
JavaScript
954 lines
32 KiB
JavaScript
/*
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* jQuery UI Sortable @VERSION
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*
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* Copyright (c) 2008 Paul Bakaus
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* Dual licensed under the MIT (MIT-LICENSE.txt)
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* and GPL (GPL-LICENSE.txt) licenses.
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*
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* http://docs.jquery.com/UI/Sortables
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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.sortable", $.extend({}, $.ui.mouse, {
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_init: 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 floating
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this.floating = this.items.length ? (/left|right/).test(this.items[0].item.css('float')) : 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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},
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plugins: {},
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_ui: function(inst) {
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var self = inst || this;
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return {
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helper: self.helper,
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placeholder: self.placeholder || $([]),
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position: self.position,
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absolutePosition: self.positionAbs,
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options: this.options,
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element: this.element,
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item: self.currentItem,
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sender: inst ? inst.element : null
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};
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},
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cancel: function() {
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if(this.dragging) {
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this._mouseUp();
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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]._propagate("deactivate", null, this);
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if(this.containers[i].containerCache.over) {
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this.containers[i]._propagate("out", null, 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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//$(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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$(this.domPosition.parent).prepend(this.currentItem);
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}
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return true;
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},
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_propagate: function(n, event, inst, noPropagation) {
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$.ui.plugin.call(this, n, [event, this._ui(inst)]);
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var dontCancel = !noPropagation ? this.element.triggerHandler(n == "sort" ? n : "sort"+n, [event, this._ui(inst)], this.options[n]) : true;
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if(dontCancel === false) this.cancel();
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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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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, x2 = x1 + this.helperProportions.width,
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y1 = this.positionAbs.top, y2 = y1 + this.helperProportions.height;
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var l = item.left, r = l + item.width,
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t = item.top, b = t + item.height;
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var dyClick = this.offset.click.top, 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" || this.options.forcePointerForContainers || (this.options.tolerance == "guess" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height'])) {
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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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_intersectsWithEdge: function(item) {
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var dyClick = this.offset.click.top, dxClick = this.offset.click.left;
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var helperTop = this.positionAbs.top, helperLeft = this.positionAbs.left;
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var itemHeight = item.height, itemWidth = item.width;
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var itemTop = item.top, itemLeft = item.left;
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if (this.cancelIntersection) {
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return false;
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}
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var isOverElementHeight = $.ui.isOverHeight(helperTop + dyClick, itemTop, itemHeight);
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var isOverElementWidth = $.ui.isOverWidth(helperLeft + dxClick, itemLeft, itemWidth);
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var isOverElement = isOverElementHeight && isOverElementWidth;
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var verticalDirection = this._getDragVerticalDirection();
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var horizontalDirection = this._getDragHorizontalDirection();
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if (!isOverElement) return false;
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if (this.floating) {
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if (!horizontalDirection) {
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return verticalDirection == "down" ? 2 : 1;
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}
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return horizontalDirection == "right" ? 2 : 1;
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}
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else {
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if (!verticalDirection) {
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return false;
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}
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return verticalDirection == "down" ? 2 : 1;
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}
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return false;
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},
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_getDragVerticalDirection: function() {
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var helperTop = this.positionAbs.top;
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var lastTop = this.lastPositionAbs.top;
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var delta = helperTop - lastTop;
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if (delta == 0) {
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return false;
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}
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var direction = delta > 0 ? "down" : "up";
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return direction;
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},
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_getDragHorizontalDirection: function() {
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var helperLeft = this.positionAbs.left;
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var lastLeft = this.lastPositionAbs.left;
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var delta = helperLeft - lastLeft;
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if (delta == 0) {
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return false;
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}
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var direction = delta > 0 ? "right" : "left";
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return direction;
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},
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refresh: function() {
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this._refreshItems();
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this.refreshPositions();
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},
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_getItemsAsjQuery: function(connected) {
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var self = this;
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var items = [];
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var queries = [];
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if(this.options.connectWith && connected) {
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for (var i = this.options.connectWith.length - 1; i >= 0; i--){
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var cur = $(this.options.connectWith[i]);
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for (var j = cur.length - 1; j >= 0; j--){
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var inst = $.data(cur[j], 'sortable');
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if(inst && inst != this && !inst.options.disabled) {
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queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper"), inst]);
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}
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};
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};
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}
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queries.push([$.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"), this]);
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for (var i = queries.length - 1; i >= 0; i--){
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queries[i][0].each(function() {
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items.push(this);
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});
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};
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return $(items);
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},
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_removeCurrentsFromItems: function() {
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var list = this.currentItem.find(":data(sortable-item)");
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for (var i=0; i < this.items.length; i++) {
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for (var j=0; j < list.length; j++) {
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if(list[j] == this.items[i].item[0])
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this.items.splice(i,1);
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};
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};
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},
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_refreshItems: function() {
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this.items = [];
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this.containers = [this];
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var items = this.items;
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var self = this;
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var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element, null, { options: this.options, item: this.currentItem }) : $(this.options.items, this.element), this]];
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if(this.options.connectWith) {
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for (var i = this.options.connectWith.length - 1; i >= 0; i--){
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var cur = $(this.options.connectWith[i]);
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for (var j = cur.length - 1; j >= 0; j--){
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var inst = $.data(cur[j], 'sortable');
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if(inst && inst != this && !inst.options.disabled) {
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queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element), inst]);
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this.containers.push(inst);
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}
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};
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};
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}
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for (var i = queries.length - 1; i >= 0; i--) {
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var targetData = queries[i][1];
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var _queries = queries[i][0];
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for (var j=0, queriesLength = _queries.length; j < queriesLength; j++) {
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var item = $(_queries[j]);
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item.data('sortable-item', targetData); // Data for target checking (mouse manager)
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items.push({
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item: item,
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instance: targetData,
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width: 0, height: 0,
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left: 0, top: 0
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});
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};
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};
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},
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refreshPositions: function(fast) {
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//This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change
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if(this.offsetParent) {
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var po = this.offsetParent.offset();
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this.offset.parent = { top: po.top + this.offsetParentBorders.top, left: po.left + this.offsetParentBorders.left };
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}
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for (var i = this.items.length - 1; i >= 0; i--){
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var item = this.items[i];
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//We ignore calculating positions of all connected containers when we're not over them
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if(item.instance != this.currentContainer && this.currentContainer && item.item[0] != this.currentItem[0])
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continue;
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var t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item;
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if (!fast) {
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if (this.options.accurate) {
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item.width = t.width();
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item.height = t.height();
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}
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else {
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item.width = t[0].offsetWidth;
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item.height = t[0].offsetHeight;
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}
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}
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var p = t.offset();
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item.left = p.left;
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item.top = p.top;
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};
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if(this.options.custom && this.options.custom.refreshContainers) {
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this.options.custom.refreshContainers.call(this);
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} else {
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for (var i = this.containers.length - 1; i >= 0; i--){
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var p = this.containers[i].element.offset();
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this.containers[i].containerCache.left = p.left;
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this.containers[i].containerCache.top = p.top;
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this.containers[i].containerCache.width = this.containers[i].element.outerWidth();
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this.containers[i].containerCache.height = this.containers[i].element.outerHeight();
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};
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}
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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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.removeData("sortable")
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.unbind(".sortable");
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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("sortable-item");
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},
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_createPlaceholder: function(that) {
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var self = that || this, o = self.options;
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if(!o.placeholder || o.placeholder.constructor == String) {
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var className = o.placeholder;
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o.placeholder = {
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element: function() {
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var el = $(document.createElement(self.currentItem[0].nodeName))
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.addClass(className || self.currentItem[0].className+" ui-sortable-placeholder")
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.removeClass('ui-sortable-helper')[0];
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if(!className) {
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el.style.visibility = "hidden";
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document.body.appendChild(el);
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el.innerHTML = self.currentItem[0].innerHTML.replace(/name\=\"[^\"\']+\"/g, ''); //Name attributes are removed, otherwice causes elements to be unchecked
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document.body.removeChild(el);
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};
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return el;
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},
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update: function(container, p) {
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if(className && !o.forcePlaceholderSize) return;
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if(!p.height()) { p.height(self.currentItem.innerHeight() - parseInt(self.currentItem.css('paddingTop')||0, 10) - parseInt(self.currentItem.css('paddingBottom')||0, 10)); };
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if(!p.width()) { p.width(self.currentItem.innerWidth() - parseInt(self.currentItem.css('paddingLeft')||0, 10) - parseInt(self.currentItem.css('paddingRight')||0, 10)); };
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}
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};
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}
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//Create the placeholder
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self.placeholder = $(o.placeholder.element.call(self.element, self.currentItem));
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//Append it after the actual current item
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self.currentItem.after(self.placeholder);
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//Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
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o.placeholder.update(self, self.placeholder);
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},
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_contactContainers: function(event) {
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for (var i = this.containers.length - 1; i >= 0; i--){
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if(this._intersectsWith(this.containers[i].containerCache)) {
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if(!this.containers[i].containerCache.over) {
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if(this.currentContainer != this.containers[i]) {
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//When entering a new container, we will find the item with the least distance and append our item near it
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var dist = 10000; var itemWithLeastDistance = null; var base = this.positionAbs[this.containers[i].floating ? 'left' : 'top'];
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for (var j = this.items.length - 1; j >= 0; j--) {
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if(!$.ui.contains(this.containers[i].element[0], this.items[j].item[0])) continue;
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var cur = this.items[j][this.containers[i].floating ? 'left' : 'top'];
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if(Math.abs(cur - base) < dist) {
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dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j];
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}
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}
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if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled
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continue;
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this.currentContainer = this.containers[i];
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itemWithLeastDistance ? this.options.sortIndicator.call(this, event, itemWithLeastDistance, null, true) : this.options.sortIndicator.call(this, event, null, this.containers[i].element, true);
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this._propagate("change", event); //Call plugins and callbacks
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this.containers[i]._propagate("change", event, this); //Call plugins and callbacks
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//Update the placeholder
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this.options.placeholder.update(this.currentContainer, this.placeholder);
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}
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this.containers[i]._propagate("over", event, this);
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this.containers[i].containerCache.over = 1;
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}
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} else {
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if(this.containers[i].containerCache.over) {
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this.containers[i]._propagate("out", event, 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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},
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_mouseCapture: function(event, overrideHandle) {
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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();
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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, self = this, nodes = $(event.target).parents().each(function() {
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if($.data(this, 'sortable-item') == self) {
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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, 'sortable-item') == self) 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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createHelper: function(event) {
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var o = this.options;
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var helper = typeof o.helper == 'function' ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper == "original" ? this.currentItem : this.currentItem.clone());
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if (!helper.parents('body').length)
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$(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]); //Add the helper to the DOM if that didn't happen already
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return helper;
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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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/*
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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.currentItem.css("marginLeft"),10) || 0),
|
|
top: (parseInt(this.currentItem.css("marginTop"),10) || 0)
|
|
};
|
|
|
|
this.offset = this.currentItem.offset(); //The element's absolute position on the page
|
|
this.offset = { //Substract the margins from the element's absolute offset
|
|
top: this.offset.top - this.margins.top,
|
|
left: this.offset.left - this.margins.left
|
|
};
|
|
|
|
this.offset.click = { //Where the click happened, relative to the element
|
|
left: event.pageX - this.offset.left,
|
|
top: event.pageY - this.offset.top
|
|
};
|
|
|
|
this.offsetParent = this.helper.offsetParent(); //Get the offsetParent and cache its position
|
|
var po = this.offsetParent.offset();
|
|
|
|
this.offsetParentBorders = {
|
|
top: (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
|
|
left: (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
|
|
};
|
|
|
|
this.offset.parent = { //Store its position plus border
|
|
top: po.top + this.offsetParentBorders.top,
|
|
left: po.left + this.offsetParentBorders.left
|
|
};
|
|
|
|
this.originalPosition = this._generatePosition(event); //Generate the original position
|
|
this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] }; //Cache the former DOM position
|
|
|
|
//If o.placeholder is used, create a new element at the given position with the class
|
|
this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() };//Cache the helper size
|
|
|
|
if(o.helper == "original") {
|
|
this._storedCSS = { position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left"), clear: this.currentItem.css("clear") };
|
|
} else {
|
|
this.currentItem.hide(); //Hide the original, won't cause anything bad this way
|
|
}
|
|
|
|
//Position it absolutely and add a helper class
|
|
this.helper
|
|
.css({ position: 'absolute', clear: 'both' })
|
|
.addClass('ui-sortable-helper');
|
|
|
|
//Create the placeholder
|
|
this._createPlaceholder();
|
|
|
|
//Call plugins and callbacks
|
|
this._propagate("start", event);
|
|
|
|
//Recache the helper size
|
|
if(!this._preserveHelperProportions)
|
|
this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() };
|
|
|
|
if(o.cursorAt) {
|
|
if(o.cursorAt.left != undefined) this.offset.click.left = o.cursorAt.left;
|
|
if(o.cursorAt.right != undefined) this.offset.click.left = this.helperProportions.width - o.cursorAt.right;
|
|
if(o.cursorAt.top != undefined) this.offset.click.top = o.cursorAt.top;
|
|
if(o.cursorAt.bottom != undefined) this.offset.click.top = this.helperProportions.height - o.cursorAt.bottom;
|
|
}
|
|
|
|
/*
|
|
* - Position constraining -
|
|
* Here we prepare position constraining like grid and containment.
|
|
*/
|
|
|
|
if(o.containment) {
|
|
if(o.containment == 'parent') o.containment = this.helper[0].parentNode;
|
|
if(o.containment == 'document' || o.containment == 'window') this.containment = [
|
|
0 - this.offset.parent.left,
|
|
0 - this.offset.parent.top,
|
|
$(o.containment == 'document' ? document : window).width() - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"),10) || 0),
|
|
($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.element.css("marginBottom"),10) || 0)
|
|
];
|
|
|
|
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($(ce).css("borderLeftWidth"),10) || 0) - this.offset.parent.left,
|
|
co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) - this.offset.parent.top,
|
|
co.left+(over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.currentItem.css("marginRight"),10) || 0),
|
|
co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.currentItem.css("marginBottom"),10) || 0)
|
|
];
|
|
}
|
|
}
|
|
|
|
//Post 'activate' events to possible containers
|
|
if(!noActivation) {
|
|
for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i]._propagate("activate", event, this); }
|
|
}
|
|
|
|
//Prepare possible droppables
|
|
if($.ui.ddmanager)
|
|
$.ui.ddmanager.current = this;
|
|
|
|
if ($.ui.ddmanager && !o.dropBehaviour)
|
|
$.ui.ddmanager.prepareOffsets(this, event);
|
|
|
|
this.dragging = true;
|
|
|
|
this._mouseDrag(event); //Execute the drag once - this causes the helper not to be visible before getting its correct position
|
|
return true;
|
|
|
|
},
|
|
|
|
_convertPositionTo: function(d, pos) {
|
|
if(!pos) pos = this.position;
|
|
var mod = d == "absolute" ? 1 : -1;
|
|
return {
|
|
top: (
|
|
pos.top // the calculated relative position
|
|
+ this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border)
|
|
- (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop) * mod // The offsetParent's scroll position
|
|
+ this.margins.top * mod //Add the margin (you don't want the margin counting in intersection methods)
|
|
),
|
|
left: (
|
|
pos.left // the calculated relative position
|
|
+ this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border)
|
|
- (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft) * mod // The offsetParent's scroll position
|
|
+ this.margins.left * mod //Add the margin (you don't want the margin counting in intersection methods)
|
|
)
|
|
};
|
|
},
|
|
|
|
_generatePosition: function(event) {
|
|
|
|
var o = this.options;
|
|
var position = {
|
|
top: (
|
|
event.pageY // The absolute mouse position
|
|
- this.offset.click.top // Click offset (relative to the element)
|
|
- this.offset.parent.top // The offsetParent's offset without borders (offset + border)
|
|
+ (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop) // The offsetParent's scroll position, not if the element is fixed
|
|
),
|
|
left: (
|
|
event.pageX // The absolute mouse position
|
|
- this.offset.click.left // Click offset (relative to the element)
|
|
- this.offset.parent.left // The offsetParent's offset without borders (offset + border)
|
|
+ (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft) // The offsetParent's scroll position, not if the element is fixed
|
|
)
|
|
};
|
|
|
|
if(!this.originalPosition) return position; //If we are not dragging yet, we won't check for options
|
|
|
|
/*
|
|
* - Position constraining -
|
|
* Constrain the position to a mix of grid, containment.
|
|
*/
|
|
if(this.containment) {
|
|
if(position.left < this.containment[0]) position.left = this.containment[0];
|
|
if(position.top < this.containment[1]) position.top = this.containment[1];
|
|
if(position.left > this.containment[2]) position.left = this.containment[2];
|
|
if(position.top > this.containment[3]) position.top = this.containment[3];
|
|
}
|
|
|
|
if(o.grid) {
|
|
var top = this.originalPosition.top + Math.round((position.top - this.originalPosition.top) / o.grid[1]) * o.grid[1];
|
|
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;
|
|
|
|
var left = this.originalPosition.left + Math.round((position.left - this.originalPosition.left) / o.grid[0]) * o.grid[0];
|
|
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;
|
|
}
|
|
|
|
return position;
|
|
},
|
|
|
|
_mouseDrag: function(event) {
|
|
|
|
//Compute the helpers position
|
|
this.position = this._generatePosition(event);
|
|
this.positionAbs = this._convertPositionTo("absolute");
|
|
|
|
if (!this.lastPositionAbs) {
|
|
this.lastPositionAbs = this.positionAbs;
|
|
}
|
|
|
|
//Call the internal plugins
|
|
$.ui.plugin.call(this, "sort", [event, this._ui()]);
|
|
|
|
//Regenerate the absolute position used for position checks
|
|
this.positionAbs = this._convertPositionTo("absolute");
|
|
|
|
//Set the helper's position
|
|
if (this.helper) {
|
|
this.helper[0].style.left = this.position.left+'px';
|
|
this.helper[0].style.top = this.position.top+'px';
|
|
}
|
|
//Rearrange
|
|
for (var i = this.items.length - 1; i >= 0; i--) {
|
|
|
|
var intersection = this._intersectsWithEdge(this.items[i]);
|
|
|
|
if (!intersection) continue;
|
|
|
|
var item = this.items[i].item[0];
|
|
|
|
if(item != this.currentItem[0] //cannot intersect with itself
|
|
&& this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != item //no useless actions that have been done before
|
|
&& !$.ui.contains(this.placeholder[0], item) //no action if the item moved is the parent of the item checked
|
|
&& (this.options.type == 'semi-dynamic' ? !$.ui.contains(this.element[0], item) : true)
|
|
) {
|
|
|
|
this.direction = intersection == 1 ? "down" : "up";
|
|
this.options.sortIndicator.call(this, event, this.items[i]);
|
|
this._propagate("change", event); //Call plugins and callbacks
|
|
break;
|
|
}
|
|
}
|
|
|
|
//Post events to containers
|
|
this._contactContainers(event);
|
|
|
|
//Interconnect with droppables
|
|
if($.ui.ddmanager) $.ui.ddmanager.drag(this, event);
|
|
|
|
//Call callbacks
|
|
this.element.triggerHandler("sort", [event, this._ui()], this.options["sort"]);
|
|
|
|
this.lastPositionAbs = this.positionAbs;
|
|
|
|
return false;
|
|
|
|
},
|
|
|
|
_rearrange: function(event, i, a, hardRefresh) {
|
|
|
|
a ? a[0].appendChild(this.placeholder[0]) : i.item[0].parentNode.insertBefore(this.placeholder[0], (this.direction == 'down' ? i.item[0] : i.item[0].nextSibling));
|
|
|
|
//Various things done here to improve the performance:
|
|
// 1. we create a setTimeout, that calls refreshPositions
|
|
// 2. on the instance, we have a counter variable, that get's higher after every append
|
|
// 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same
|
|
// 4. this lets only the last addition to the timeout stack through
|
|
this.counter = this.counter ? ++this.counter : 1;
|
|
var self = this, counter = this.counter;
|
|
|
|
window.setTimeout(function() {
|
|
if(counter == self.counter) self.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove
|
|
},0);
|
|
|
|
},
|
|
|
|
_mouseStop: function(event, noPropagation) {
|
|
|
|
if(!event) return;
|
|
|
|
//If we are using droppables, inform the manager about the drop
|
|
if ($.ui.ddmanager && !this.options.dropBehaviour)
|
|
$.ui.ddmanager.drop(this, event);
|
|
|
|
if(this.options.revert) {
|
|
var self = this;
|
|
var cur = self.placeholder.offset();
|
|
|
|
self.reverting = true;
|
|
|
|
$(this.helper).animate({
|
|
left: cur.left - this.offset.parent.left - self.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft),
|
|
top: cur.top - this.offset.parent.top - self.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop)
|
|
}, parseInt(this.options.revert, 10) || 500, function() {
|
|
self._clear(event);
|
|
});
|
|
} else {
|
|
this._clear(event, noPropagation);
|
|
}
|
|
|
|
return false;
|
|
|
|
},
|
|
|
|
_clear: function(event, noPropagation) {
|
|
|
|
this.reverting = false;
|
|
|
|
//We first have to update the dom position of the actual currentItem
|
|
if(!this._noFinalSort) this.placeholder.before(this.currentItem);
|
|
this._noFinalSort = null;
|
|
|
|
if(this.options.helper == "original")
|
|
this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
|
|
else
|
|
this.currentItem.show();
|
|
|
|
if(this.domPosition.prev != this.currentItem.prev().not(".ui-sortable-helper")[0] || this.domPosition.parent != this.currentItem.parent()[0]) this._propagate("update", event, null, noPropagation); //Trigger update callback if the DOM position has changed
|
|
if(!$.ui.contains(this.element[0], this.currentItem[0])) { //Node was moved out of the current element
|
|
this._propagate("remove", event, null, noPropagation);
|
|
for (var i = this.containers.length - 1; i >= 0; i--){
|
|
if($.ui.contains(this.containers[i].element[0], this.currentItem[0])) {
|
|
this.containers[i]._propagate("update", event, this, noPropagation);
|
|
this.containers[i]._propagate("receive", event, this, noPropagation);
|
|
}
|
|
};
|
|
};
|
|
|
|
//Post events to containers
|
|
for (var i = this.containers.length - 1; i >= 0; i--){
|
|
this.containers[i]._propagate("deactivate", event, this, noPropagation);
|
|
if(this.containers[i].containerCache.over) {
|
|
this.containers[i]._propagate("out", event, this);
|
|
this.containers[i].containerCache.over = 0;
|
|
}
|
|
}
|
|
|
|
this.dragging = false;
|
|
if(this.cancelHelperRemoval) {
|
|
this._propagate("beforeStop", event, null, noPropagation);
|
|
this._propagate("stop", event, null, noPropagation);
|
|
return false;
|
|
}
|
|
|
|
this._propagate("beforeStop", event, null, noPropagation);
|
|
|
|
//$(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.options.helper != "original") this.helper.remove(); this.helper = null;
|
|
this._propagate("stop", event, null, noPropagation);
|
|
|
|
return true;
|
|
|
|
}
|
|
}));
|
|
|
|
$.extend($.ui.sortable, {
|
|
getter: "serialize toArray",
|
|
version: "@VERSION",
|
|
defaults: {
|
|
helper: "original",
|
|
tolerance: "guess",
|
|
distance: 1,
|
|
delay: 0,
|
|
scroll: true,
|
|
scrollSensitivity: 20,
|
|
scrollSpeed: 20,
|
|
cancel: ":input",
|
|
items: '> *',
|
|
zIndex: 1000,
|
|
dropOnEmpty: true,
|
|
appendTo: "parent",
|
|
sortIndicator: $.ui.sortable.prototype._rearrange,
|
|
scope: "default",
|
|
forcePlaceholderSize: false,
|
|
accurate: false
|
|
}
|
|
});
|
|
|
|
/*
|
|
* Sortable Extensions
|
|
*/
|
|
|
|
$.ui.plugin.add("sortable", "cursor", {
|
|
start: function(event, ui) {
|
|
var t = $('body');
|
|
if (t.css("cursor")) ui.options._cursor = t.css("cursor");
|
|
t.css("cursor", ui.options.cursor);
|
|
},
|
|
beforeStop: function(event, ui) {
|
|
if (ui.options._cursor) $('body').css("cursor", ui.options._cursor);
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("sortable", "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);
|
|
},
|
|
beforeStop: function(event, ui) {
|
|
if(ui.options._zIndex) $(ui.helper).css('zIndex', ui.options._zIndex);
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("sortable", "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);
|
|
},
|
|
beforeStop: function(event, ui) {
|
|
if(ui.options._opacity) $(ui.helper).css('opacity', ui.options._opacity);
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("sortable", "scroll", {
|
|
start: function(event, ui) {
|
|
var o = ui.options;
|
|
var i = $(this).data("sortable");
|
|
|
|
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);
|
|
}(i.currentItem);
|
|
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);
|
|
}(i.currentItem);
|
|
|
|
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();
|
|
|
|
},
|
|
sort: function(event, ui) {
|
|
|
|
var o = ui.options;
|
|
var i = $(this).data("sortable");
|
|
|
|
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 = i.overflowY[0].scrollTop + o.scrollSpeed;
|
|
if(event.pageY - i.overflowYOffset.top < o.scrollSensitivity)
|
|
i.overflowY[0].scrollTop = i.overflowY[0].scrollTop - o.scrollSpeed;
|
|
} else {
|
|
if(event.pageY - $(document).scrollTop() < o.scrollSensitivity)
|
|
$(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
|
|
if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity)
|
|
$(document).scrollTop($(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 = i.overflowX[0].scrollLeft + o.scrollSpeed;
|
|
if(event.pageX - i.overflowXOffset.left < o.scrollSensitivity)
|
|
i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft - o.scrollSpeed;
|
|
} else {
|
|
if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity)
|
|
$(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
|
|
if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
|
|
$(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
|
|
}
|
|
|
|
}
|
|
});
|
|
|
|
$.ui.plugin.add("sortable", "axis", {
|
|
sort: function(event, ui) {
|
|
|
|
var i = $(this).data("sortable");
|
|
if(ui.options.axis == "y") i.position.left = i.originalPosition.left;
|
|
if(ui.options.axis == "x") i.position.top = i.originalPosition.top;
|
|
|
|
}
|
|
});
|
|
|
|
})(jQuery);
|