src/wlxml/extensions/list/list.js

   1 define(function(require) {
   2
   3 'use strict';
   4
   5 var _ = require('libs/underscore'),
   6     extension = {document: {transformations: {}, methods: {}}, wlxmlClass: {list: {methods: {}}}};
   7
   8
   9 extension.wlxmlClass.list.methods = {
  10     itemIndex: function(listItem) {
  11         var toret = -1;
  12         this.contents('.item').some(function(item, index) {
  13             if(item.sameNode(listItem)) {
  14                 toret = index;
  15                 return true; // break
  16             }
  17         });
  18         return toret;
  19     },
  20     getItem: function(index) {
  21         return this.contents('.item')[index];
  22     }
  23 };
  24
  25 extension.wlxmlClass.list.transformations = {
  26     extractAllItems: function() {
  27         var contents = this.contents();
  28         return this.document.extractItems({item1: contents[0], item2: _.last(contents)});
  29     }
  30 };
  31
  32 extension.wlxmlClass.list.transformations = {
  33     extractListItems: function() {
  34         var contents = this.contents(),
  35             first = contents[0],
  36             last;
  37         if(contents.length) {
  38             last = contents[contents.length-1];
  39             return this.document.extractItems({
  40                 item1: first,
  41                 item2: last
  42             });
  43         } else {
  44             this.detach();
  45         }
  46     }
  47 };
  48
  49 extension.document.methods = {
  50     areItemsOfSameList: function(params) {
  51         return params.node1.parent().sameNode(params.node2.parent()) && params.node2.parent().is('list');
  52     }
  53 };
  54
  55 extension.document.transformations.createList = {
  56     impl: function(params) {
  57         /* globals Node */
  58         var parent = params.node1.parent(),
  59             parentContents = parent.contents(),
  60             nodeIndexes = [params.node1.getIndex(), params.node2.getIndex()].sort(function(a,b) { return a-b; }),
  61             nodesToWrap = [],
  62             listClass = params.klass || 'list',
  63             listNode = params.node1.document.createDocumentNode({tagName: 'div', attrs: {'class': listClass}}),
  64             listPlacePtr = params.node1,
  65             node, i;
  66
  67         for(i = nodeIndexes[0]; i <= nodeIndexes[1]; i++) {
  68             node = parentContents[i];
  69             if(node.nodeType === Node.TEXT_NODE) {
  70                 node = node.wrapWith({tagName: 'div', attrs: {'class': 'item'}});
  71                 if(i === nodeIndexes[0]) {
  72                     listPlacePtr = node;
  73                 }
  74             } else {
  75                 node.setClass('item');
  76             }
  77             nodesToWrap.push(node);
  78         }
  79
  80         var toInsert;
  81         if(parent.is('list') && parent.object.itemIndex(nodesToWrap[0]) > 0) { // object api
  82             // var prevItem = parent.object.getItem(parent.object.itemIndex(nodesToWrap[0])-1); // object api
  83             // prevItem.append(listNode);
  84             toInsert = listNode.wrapWith({tagName: 'div', attrs: {'class': 'item'}});
  85         } else {
  86             //nodesToWrap[0].before(listNode);
  87             toInsert = listNode;
  88         }
  89
  90         listPlacePtr.before(toInsert);
  91
  92         nodesToWrap.forEach(function(node) {
  93             listNode.append(node);
  94         });
  95         return listNode;
  96     },
  97     getChangeRoot: function() {
  98         return this.args[0].node1.parent();
  99     },
 100     isAllowed: function() {
 101         return this.args[0].node1.parent().sameNode(this.args[0].node2.parent());
 102     }
 103 };
 104
 105 extension.document.transformations.extractItems = {
 106     impl: function(params) {
 107         params = _.extend({}, {merge: true}, params);
 108         var list = params.item1.parent(),
 109             indexes = [params.item1.getIndex(), params.item2.getIndex()].sort(function(a,b) { return a-b;}),
 110             precedingItems = [],
 111             extractedItems = [],
 112             succeedingItems = [],
 113             items = list.contents(),
 114             listIsNested = list.parent().is('item');
 115
 116
 117         items.forEach(function(item, idx) {
 118             if(idx < indexes[0]) {
 119                 precedingItems.push(item);
 120             }
 121             else if(idx >= indexes[0] && idx <= indexes[1]) {
 122                 extractedItems.push(item);
 123             }
 124             else {
 125                 succeedingItems.push(item);
 126             }
 127         });
 128
 129         var reference = listIsNested ? list.parent() : list;
 130         if(succeedingItems.length === 0) {
 131             var reference_orig = reference;
 132             extractedItems.forEach(function(item) {
 133                 reference.after(item);
 134                 reference = item;
 135                 if(!listIsNested) {
 136                     item.setClass('');
 137                 }
 138             });
 139             if(precedingItems.length === 0) {
 140                 reference_orig.detach();
 141             }
 142         } else if(precedingItems.length === 0) {
 143             extractedItems.forEach(function(item) {
 144                 reference.before(item);
 145                 if(!listIsNested) {
 146                     item.setClass('');
 147                 }
 148             });
 149         } else {
 150             extractedItems.forEach(function(item) {
 151                 reference.after(item);
 152                 if(!listIsNested) {
 153                     item.setClass('');
 154                 }
 155                 reference = item;
 156             });
 157             var secondList = params.item1.document.createDocumentNode({tagName: 'div', attrs: {'class': list.getClass() || 'list'}}),
 158                 toAdd = secondList;
 159
 160             if(listIsNested) {
 161                 toAdd = secondList.wrapWith({tagName: 'div', attrs: {'class':'item'}});
 162             }
 163             succeedingItems.forEach(function(item) {
 164                 secondList.append(item);
 165             });
 166
 167             reference.after(toAdd);
 168         }
 169         if(!params.merge && listIsNested) {
 170             return this.extractItems({item1: extractedItems[0], item2: extractedItems[extractedItems.length-1]});
 171         }
 172         return extractedItems[0];
 173     },
 174     isAllowed: function() {
 175         var parent = this.args[0].nodel1.parent();
 176         return parent.is('list') && parent.sameNode(this.args[0].node2.parent());
 177     }
 178 };
 179
 180 return extension;
 181
 182
 183 });