The Tor Browser: testing/mochitest/MochiKit/Sortable.js@6474c204b198 (annotated)

testing/mochitest/MochiKit/Sortable.js@6474c204b198 (annotated)

testing/mochitest/MochiKit/Sortable.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /***
 Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
     Mochi-ized By Thomas Herve (_firstname_@nimail.org)
 See scriptaculous.js for full license.
 ***/
 if (typeof(dojo) != 'undefined') {
     dojo.provide('MochiKit.DragAndDrop');
     dojo.require('MochiKit.Base');
     dojo.require('MochiKit.DOM');
     dojo.require('MochiKit.Iter');
 }
 if (typeof(JSAN) != 'undefined') {
     JSAN.use("MochiKit.Base", []);
     JSAN.use("MochiKit.DOM", []);
     JSAN.use("MochiKit.Iter", []);
 }
 try {
     if (typeof(MochiKit.Base) == 'undefined' ||
         typeof(MochiKit.DOM) == 'undefined' ||
         typeof(MochiKit.Iter) == 'undefined') {
         throw "";
     }
 } catch (e) {
     throw "MochiKit.DragAndDrop depends on MochiKit.Base, MochiKit.DOM and MochiKit.Iter!";
 }
 if (typeof(MochiKit.Sortable) == 'undefined') {
     MochiKit.Sortable = {};
 }
 MochiKit.Sortable.NAME = 'MochiKit.Sortable';
 MochiKit.Sortable.VERSION = '1.4';
 MochiKit.Sortable.__repr__ = function () {
     return '[' + this.NAME + ' ' + this.VERSION + ']';
 };
 MochiKit.Sortable.toString = function () {
     return this.__repr__();
 };
 MochiKit.Sortable.EXPORT = [
 ];
 MochiKit.DragAndDrop.EXPORT_OK = [
     "Sortable"
 ];
 MochiKit.Sortable.Sortable = {
     /***
     Manage sortables. Mainly use the create function to add a sortable.
     ***/
     sortables: {},
     _findRootElement: function (element) {
         while (element.tagName.toUpperCase() != "BODY") {
             if (element.id && MochiKit.Sortable.Sortable.sortables[element.id]) {
                 return element;
             }
             element = element.parentNode;
         }
     },
     /** @id MochiKit.Sortable.Sortable.options */
     options: function (element) {
         element = MochiKit.Sortable.Sortable._findRootElement(MochiKit.DOM.getElement(element));
         if (!element) {
             return;
         }
         return MochiKit.Sortable.Sortable.sortables[element.id];
     },
     /** @id MochiKit.Sortable.Sortable.destroy */
     destroy: function (element){
         var s = MochiKit.Sortable.Sortable.options(element);
         var b = MochiKit.Base;
         var d = MochiKit.DragAndDrop;
         if (s) {
             MochiKit.Signal.disconnect(s.startHandle);
             MochiKit.Signal.disconnect(s.endHandle);
             b.map(function (dr) {
                 d.Droppables.remove(dr);
             }, s.droppables);
             b.map(function (dr) {
                 dr.destroy();
             }, s.draggables);
             delete MochiKit.Sortable.Sortable.sortables[s.element.id];
         }
     },
     /** @id MochiKit.Sortable.Sortable.create */
     create: function (element, options) {
         element = MochiKit.DOM.getElement(element);
         var self = MochiKit.Sortable.Sortable;
         /** @id MochiKit.Sortable.Sortable.options */
         options = MochiKit.Base.update({
             /** @id MochiKit.Sortable.Sortable.element */
             element: element,
             /** @id MochiKit.Sortable.Sortable.tag */
             tag: 'li',  // assumes li children, override with tag: 'tagname'
             /** @id MochiKit.Sortable.Sortable.dropOnEmpty */
             dropOnEmpty: false,
             /** @id MochiKit.Sortable.Sortable.tree */
             tree: false,
             /** @id MochiKit.Sortable.Sortable.treeTag */
             treeTag: 'ul',
             /** @id MochiKit.Sortable.Sortable.overlap */
             overlap: 'vertical',  // one of 'vertical', 'horizontal'
             /** @id MochiKit.Sortable.Sortable.constraint */
             constraint: 'vertical',  // one of 'vertical', 'horizontal', false
             // also takes array of elements (or ids); or false
             /** @id MochiKit.Sortable.Sortable.containment */
             containment: [element],
             /** @id MochiKit.Sortable.Sortable.handle */
             handle: false,  // or a CSS class
             /** @id MochiKit.Sortable.Sortable.only */
             only: false,
             /** @id MochiKit.Sortable.Sortable.hoverclass */
             hoverclass: null,
             /** @id MochiKit.Sortable.Sortable.ghosting */
             ghosting: false,
             /** @id MochiKit.Sortable.Sortable.scroll */
             scroll: false,
             /** @id MochiKit.Sortable.Sortable.scrollSensitivity */
             scrollSensitivity: 20,
             /** @id MochiKit.Sortable.Sortable.scrollSpeed */
             scrollSpeed: 15,
             /** @id MochiKit.Sortable.Sortable.format */
             format: /^[^_]*_(.*)$/,
             /** @id MochiKit.Sortable.Sortable.onChange */
             onChange: MochiKit.Base.noop,
             /** @id MochiKit.Sortable.Sortable.onUpdate */
             onUpdate: MochiKit.Base.noop,
             /** @id MochiKit.Sortable.Sortable.accept */
             accept: null
         }, options);
         // clear any old sortable with same element
         self.destroy(element);
         // build options for the draggables
         var options_for_draggable = {
             revert: true,
             ghosting: options.ghosting,
             scroll: options.scroll,
             scrollSensitivity: options.scrollSensitivity,
             scrollSpeed: options.scrollSpeed,
             constraint: options.constraint,
             handle: options.handle
         };
         if (options.starteffect) {
             options_for_draggable.starteffect = options.starteffect;
         }
         if (options.reverteffect) {
             options_for_draggable.reverteffect = options.reverteffect;
         } else if (options.ghosting) {
             options_for_draggable.reverteffect = function (innerelement) {
                 innerelement.style.top = 0;
                 innerelement.style.left = 0;
             };
         }
         if (options.endeffect) {
             options_for_draggable.endeffect = options.endeffect;
         }
         if (options.zindex) {
             options_for_draggable.zindex = options.zindex;
         }
         // build options for the droppables
         var options_for_droppable = {
             overlap: options.overlap,
             containment: options.containment,
             hoverclass: options.hoverclass,
             onhover: self.onHover,
             tree: options.tree,
             accept: options.accept
         }
         var options_for_tree = {
             onhover: self.onEmptyHover,
             overlap: options.overlap,
             containment: options.containment,
             hoverclass: options.hoverclass,
             accept: options.accept
         }
         // fix for gecko engine
         MochiKit.DOM.removeEmptyTextNodes(element);
         options.draggables = [];
         options.droppables = [];
         // drop on empty handling
         if (options.dropOnEmpty || options.tree) {
             new MochiKit.DragAndDrop.Droppable(element, options_for_tree);
             options.droppables.push(element);
         }
         MochiKit.Base.map(function (e) {
             // handles are per-draggable
             var handle = options.handle ?
                 MochiKit.DOM.getFirstElementByTagAndClassName(null,
                     options.handle, e) : e;
             options.draggables.push(
                 new MochiKit.DragAndDrop.Draggable(e,
                     MochiKit.Base.update(options_for_draggable,
                                          {handle: handle})));
             new MochiKit.DragAndDrop.Droppable(e, options_for_droppable);
             if (options.tree) {
                 e.treeNode = element;
             }
             options.droppables.push(e);
         }, (self.findElements(element, options) || []));
         if (options.tree) {
             MochiKit.Base.map(function (e) {
                 new MochiKit.DragAndDrop.Droppable(e, options_for_tree);
                 e.treeNode = element;
                 options.droppables.push(e);
             }, (self.findTreeElements(element, options) || []));
         }
         // keep reference
         self.sortables[element.id] = options;
         options.lastValue = self.serialize(element);
         options.startHandle = MochiKit.Signal.connect(MochiKit.DragAndDrop.Draggables, 'start',
                                 MochiKit.Base.partial(self.onStart, element));
         options.endHandle = MochiKit.Signal.connect(MochiKit.DragAndDrop.Draggables, 'end',
                                 MochiKit.Base.partial(self.onEnd, element));
     },
     /** @id MochiKit.Sortable.Sortable.onStart */
     onStart: function (element, draggable) {
         var self = MochiKit.Sortable.Sortable;
         var options = self.options(element);
         options.lastValue = self.serialize(options.element);
     },
     /** @id MochiKit.Sortable.Sortable.onEnd */
     onEnd: function (element, draggable) {
         var self = MochiKit.Sortable.Sortable;
         self.unmark();
         var options = self.options(element);
         if (options.lastValue != self.serialize(options.element)) {
             options.onUpdate(options.element);
         }
     },
     // return all suitable-for-sortable elements in a guaranteed order
     /** @id MochiKit.Sortable.Sortable.findElements */
     findElements: function (element, options) {
         return MochiKit.Sortable.Sortable.findChildren(
             element, options.only, options.tree ? true : false, options.tag);
     },
     /** @id MochiKit.Sortable.Sortable.findTreeElements */
     findTreeElements: function (element, options) {
         return MochiKit.Sortable.Sortable.findChildren(
             element, options.only, options.tree ? true : false, options.treeTag);
     },
     /** @id MochiKit.Sortable.Sortable.findChildren */
     findChildren: function (element, only, recursive, tagName) {
         if (!element.hasChildNodes()) {
             return null;
         }
         tagName = tagName.toUpperCase();
         if (only) {
             only = MochiKit.Base.flattenArray([only]);
         }
         var elements = [];
         MochiKit.Base.map(function (e) {
             if (e.tagName &&
                 e.tagName.toUpperCase() == tagName &&
                (!only ||
                 MochiKit.Iter.some(only, function (c) {
                     return MochiKit.DOM.hasElementClass(e, c);
                 }))) {
                 elements.push(e);
             }
             if (recursive) {
                 var grandchildren = MochiKit.Sortable.Sortable.findChildren(e, only, recursive, tagName);
                 if (grandchildren && grandchildren.length > 0) {
                     elements = elements.concat(grandchildren);
                 }
             }
         }, element.childNodes);
         return elements;
     },
     /** @id MochiKit.Sortable.Sortable.onHover */
     onHover: function (element, dropon, overlap) {
         if (MochiKit.DOM.isParent(dropon, element)) {
             return;
         }
         var self = MochiKit.Sortable.Sortable;
         if (overlap > .33 && overlap < .66 && self.options(dropon).tree) {
             return;
         } else if (overlap > 0.5) {
             self.mark(dropon, 'before');
             if (dropon.previousSibling != element) {
                 var oldParentNode = element.parentNode;
                 element.style.visibility = 'hidden';  // fix gecko rendering
                 dropon.parentNode.insertBefore(element, dropon);
                 if (dropon.parentNode != oldParentNode) {
                     self.options(oldParentNode).onChange(element);
                 }
                 self.options(dropon.parentNode).onChange(element);
             }
         } else {
             self.mark(dropon, 'after');
             var nextElement = dropon.nextSibling || null;
             if (nextElement != element) {
                 var oldParentNode = element.parentNode;
                 element.style.visibility = 'hidden';  // fix gecko rendering
                 dropon.parentNode.insertBefore(element, nextElement);
                 if (dropon.parentNode != oldParentNode) {
                     self.options(oldParentNode).onChange(element);
                 }
                 self.options(dropon.parentNode).onChange(element);
             }
         }
     },
     _offsetSize: function (element, type) {
         if (type == 'vertical' || type == 'height') {
             return element.offsetHeight;
         } else {
             return element.offsetWidth;
         }
     },
     /** @id MochiKit.Sortable.Sortable.onEmptyHover */
     onEmptyHover: function (element, dropon, overlap) {
         var oldParentNode = element.parentNode;
         var self = MochiKit.Sortable.Sortable;
         var droponOptions = self.options(dropon);
         if (!MochiKit.DOM.isParent(dropon, element)) {
             var index;
             var children = self.findElements(dropon, {tag: droponOptions.tag,
                                                       only: droponOptions.only});
             var child = null;
             if (children) {
                 var offset = self._offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);
                 for (index = 0; index < children.length; index += 1) {
                     if (offset - self._offsetSize(children[index], droponOptions.overlap) >= 0) {
                         offset -= self._offsetSize(children[index], droponOptions.overlap);
                     } else if (offset - (self._offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
                         child = index + 1 < children.length ? children[index + 1] : null;
                         break;
                     } else {
                         child = children[index];
                         break;
                     }
                 }
             }
             dropon.insertBefore(element, child);
             self.options(oldParentNode).onChange(element);
             droponOptions.onChange(element);
         }
     },
     /** @id MochiKit.Sortable.Sortable.unmark */
     unmark: function () {
         var m = MochiKit.Sortable.Sortable._marker;
         if (m) {
             MochiKit.Style.hideElement(m);
         }
     },
     /** @id MochiKit.Sortable.Sortable.mark */
     mark: function (dropon, position) {
         // mark on ghosting only
         var d = MochiKit.DOM;
         var self = MochiKit.Sortable.Sortable;
         var sortable = self.options(dropon.parentNode);
         if (sortable && !sortable.ghosting) {
             return;
         }
         if (!self._marker) {
             self._marker = d.getElement('dropmarker') ||
                         document.createElement('DIV');
             MochiKit.Style.hideElement(self._marker);
             d.addElementClass(self._marker, 'dropmarker');
             self._marker.style.position = 'absolute';
             document.getElementsByTagName('body').item(0).appendChild(self._marker);
         }
         var offsets = MochiKit.Position.cumulativeOffset(dropon);
         self._marker.style.left = offsets.x + 'px';
         self._marker.style.top = offsets.y + 'px';
         if (position == 'after') {
             if (sortable.overlap == 'horizontal') {
                 self._marker.style.left = (offsets.x + dropon.clientWidth) + 'px';
             } else {
                 self._marker.style.top = (offsets.y + dropon.clientHeight) + 'px';
             }
         }
         MochiKit.Style.showElement(self._marker);
     },
     _tree: function (element, options, parent) {
         var self = MochiKit.Sortable.Sortable;
         var children = self.findElements(element, options) || [];
         for (var i = 0; i < children.length; ++i) {
             var match = children[i].id.match(options.format);
             if (!match) {
                 continue;
             }
             var child = {
                 id: encodeURIComponent(match ? match[1] : null),
                 element: element,
                 parent: parent,
                 children: [],
                 position: parent.children.length,
                 container: self._findChildrenElement(children[i], options.treeTag.toUpperCase())
             }
             /* Get the element containing the children and recurse over it */
             if (child.container) {
                 self._tree(child.container, options, child)
             }
             parent.children.push (child);
         }
         return parent;
     },
     /* Finds the first element of the given tag type within a parent element.
        Used for finding the first LI[ST] within a L[IST]I[TEM].*/
     _findChildrenElement: function (element, containerTag) {
         if (element && element.hasChildNodes) {
             containerTag = containerTag.toUpperCase();
             for (var i = 0; i < element.childNodes.length; ++i) {
                 if (element.childNodes[i].tagName.toUpperCase() == containerTag) {
                     return element.childNodes[i];
                 }
             }
         }
         return null;
     },
     /** @id MochiKit.Sortable.Sortable.tree */
     tree: function (element, options) {
         element = MochiKit.DOM.getElement(element);
         var sortableOptions = MochiKit.Sortable.Sortable.options(element);
         options = MochiKit.Base.update({
             tag: sortableOptions.tag,
             treeTag: sortableOptions.treeTag,
             only: sortableOptions.only,
             name: element.id,
             format: sortableOptions.format
         }, options || {});
         var root = {
             id: null,
             parent: null,
             children: new Array,
             container: element,
             position: 0
         }
         return MochiKit.Sortable.Sortable._tree(element, options, root);
     },
     /**
      * Specifies the sequence for the Sortable.
      * @param {Node} element    Element to use as the Sortable.
      * @param {Object} newSequence    New sequence to use.
      * @param {Object} options    Options to use fro the Sortable.
      */
     setSequence: function (element, newSequence, options) {
         var self = MochiKit.Sortable.Sortable;
         var b = MochiKit.Base;
         element = MochiKit.DOM.getElement(element);
         options = b.update(self.options(element), options || {});
         var nodeMap = {};
         b.map(function (n) {
             var m = n.id.match(options.format);
             if (m) {
                 nodeMap[m[1]] = [n, n.parentNode];
             }
             n.parentNode.removeChild(n);
         }, self.findElements(element, options));
         b.map(function (ident) {
             var n = nodeMap[ident];
             if (n) {
                 n[1].appendChild(n[0]);
                 delete nodeMap[ident];
             }
         }, newSequence);
     },
     /* Construct a [i] index for a particular node */
     _constructIndex: function (node) {
         var index = '';
         do {
             if (node.id) {
                 index = '[' + node.position + ']' + index;
             }
         } while ((node = node.parent) != null);
         return index;
     },
     /** @id MochiKit.Sortable.Sortable.sequence */
     sequence: function (element, options) {
         element = MochiKit.DOM.getElement(element);
         var self = MochiKit.Sortable.Sortable;
         var options = MochiKit.Base.update(self.options(element), options || {});
         return MochiKit.Base.map(function (item) {
             return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
         }, MochiKit.DOM.getElement(self.findElements(element, options) || []));
     },
     /**
      * Serializes the content of a Sortable. Useful to send this content through a XMLHTTPRequest.
      * These options override the Sortable options for the serialization only.
      * @param {Node} element    Element to serialize.
      * @param {Object} options    Serialization options.
      */
     serialize: function (element, options) {
         element = MochiKit.DOM.getElement(element);
         var self = MochiKit.Sortable.Sortable;
         options = MochiKit.Base.update(self.options(element), options || {});
         var name = encodeURIComponent(options.name || element.id);
         if (options.tree) {
             return MochiKit.Base.flattenArray(MochiKit.Base.map(function (item) {
                 return [name + self._constructIndex(item) + "[id]=" +
                 encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
             }, self.tree(element, options).children)).join('&');
         } else {
             return MochiKit.Base.map(function (item) {
                 return name + "[]=" + encodeURIComponent(item);
             }, self.sequence(element, options)).join('&');
         }
     }
 };