src/editor/plugins/core/lists.js

   1 define(function() {
   2
   3 'use strict';
   4 /* globals gettext, interpolate */
   5
   6
   7 var getBoundriesForAList = function(fragment) {
   8     var node;
   9
  10     if(fragment instanceof fragment.RangeFragment && fragment.hasSiblingBoundries()) {
  11         return fragment.boundriesSiblingParents();
  12     }
  13     if(fragment instanceof fragment.NodeFragment) {
  14         node = fragment.node.getNearestElementNode();
  15         return {
  16             node1: node,
  17             node2: node
  18         };
  19     }
  20 };
  21
  22 var countItems = function(boundries) {
  23     var ptr = boundries.node1,
  24         c = 1;
  25     while(ptr && !ptr.sameNode(boundries.node2)) {
  26         c++;
  27         ptr = ptr.next();
  28     }
  29     return c;
  30 };
  31
  32 var toggleListAction = function(type) {
  33
  34     var execute = {
  35         add: function(callback, params) {
  36             var boundries = getBoundriesForAList(params.fragment),
  37                 listParams = {klass: type === 'Bullet' ? 'list' : 'list.enum'},
  38                 action = this;
  39
  40             if(boundries && boundries.node1) {
  41                 listParams.node1 = boundries.node1;
  42                 listParams.node2 = boundries.node2;
  43                 boundries.node1.document.transaction(function() {
  44                     var list = boundries.node1.document.createList(listParams),
  45                         item1 = list.object.getItem(0),
  46                         text = item1 ? item1.contents()[0] : undefined, //
  47                         doc = boundries.node1.document;
  48
  49                    return doc.createFragment(doc.CaretFragment, {node: text, offset:0});
  50                 }, {
  51                     metadata: {
  52                         description: action.getState().description
  53                     },
  54                     success: callback
  55                 });
  56             } else {
  57                 throw new Error('Invalid boundries');
  58             }
  59         },
  60         remove: function(callback, params) {
  61             /* globals Node */
  62             var current = params.fragment.node,
  63                 action = this;
  64
  65             var toSearch = current.nodeType === Node.ELEMENT_NODE ? [current] : [];
  66             toSearch = toSearch.concat(current.parents());
  67             toSearch.some(function(node) {
  68                 if(node.is('list')) {
  69                     node.document.transaction(function() {
  70                         var firstItem = node.object.extractListItems(),
  71                             toret;
  72                         if(params.fragment.isValid()) {
  73                             toret = params.fragment;
  74                         } else {
  75                             toret = node.document.createFragment(node.document.NodeFragment, {node: firstItem});
  76                         }
  77                         return toret;
  78                     }, {
  79                         metadata: {
  80                             description: action.getState().description
  81                         },
  82                         success: callback
  83                     });
  84
  85                     return true; // break
  86                 }
  87             }.bind(this));
  88         },
  89         changeType: function(callback, params) {
  90             var node = params.fragment.node,
  91                 action = this;
  92             node.document.transaction(function() {
  93                 var list = node.getParent('list');
  94                 list.setClass(type === 'Bullet' ? 'list' : 'list.enum');
  95                 if(params.fragment.isValid()) {
  96                     return params.fragment;
  97                 } else {
  98                     return node.document.createFragment(node.document.NodeFragment, {node: list.contents()[0]});
  99                 }
 100             }, {
 101                 metadata: {
 102                     description: action.getState().description
 103                 },
 104                 success: callback
 105             });
 106         }
 107     };
 108
 109     var isToggled = function(params) {
 110         if(params.fragment && params.fragment.node && params.fragment.node.isInside('list')) {
 111             var list = params.fragment.node.getParent('list');
 112             return list.getClass() === (type === 'Bullet' ? 'list' : 'list.enum');
 113         }
 114         return false;
 115     };
 116
 117     var label = type === 'Bullet' ? gettext('bull. list') : gettext('num. list');
 118
 119     return {
 120         name: 'toggle' + type + 'List',
 121         context: ['fragment'],
 122         params: {
 123             fragment: {type: 'context', name: 'fragment'}
 124         },
 125         stateDefaults: {
 126             label: label
 127         },
 128         getState: function(params) {
 129             if(!params.fragment || !params.fragment.isValid()) {
 130                 return false;
 131             }
 132
 133             if(params.fragment instanceof params.fragment.CaretFragment && params.fragment.node.isInside('list')) {
 134                 var list = params.fragment.node.getParent('list');
 135                 if((list.getClass() === 'list' && type === 'Enum') || (list.getClass() === 'list.enum' && type === 'Bullet')) {
 136                     return {
 137                         allowed: true,
 138                         description: interpolate(gettext('Change list type to %s'), [label]),
 139                         execute: execute.changeType
 140                     };
 141                 }
 142                 return {
 143                     allowed: true,
 144                     toggled: isToggled(params),
 145                     description: gettext('Remove list'),
 146                     execute: execute.remove
 147                 };
 148
 149             }
 150             var boundries = getBoundriesForAList(params.fragment);
 151             if(boundries) {
 152                 return {
 153                     allowed: true,
 154                     description: interpolate(gettext('Make %s fragment(s) into list'), [countItems(getBoundriesForAList(params.fragment))]),
 155                     execute: execute.add
 156                 };
 157             }
 158         }
 159     };
 160 };
 161
 162
 163 return {
 164     actions: [toggleListAction('Bullet'), toggleListAction('Enum')]
 165 };
 166
 167 });