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(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                     boundries.node1.document.createList(listParams);
  45                 }, {
  46                     metadata: {
  47                         description: action.getState().description
  48                     }
  49                 });
  50             } else {
  51                 throw new Error('Invalid boundries');
  52             }
  53         },
  54         remove: function(params) {
  55             /* globals Node */
  56             var current = params.fragment.node,
  57                 action = this;
  58
  59             var toSearch = current.nodeType === Node.ELEMENT_NODE ? [current] : [];
  60             toSearch = toSearch.concat(current.parents());
  61             toSearch.some(function(node) {
  62                 if(node.is('list')) {
  63                     node.document.transaction(function() {
  64                         node.object.extractListItems();
  65                     }, {
  66                         metadata: {
  67                             description: action.getState().description
  68                         }
  69                     });
  70
  71                     return true; // break
  72                 }
  73             }.bind(this));
  74         },
  75         changeType: function(params) {
  76             var node = params.fragment.node,
  77                 action = this;
  78             node.document.transaction(function() {
  79                 node.getParent('list').setClass(type === 'Bullet' ? 'list' : 'list.enum');
  80             }, {
  81                 metadata: {
  82                     description: action.getState().description
  83                 }
  84             });
  85         }
  86     };
  87
  88     var isToggled = function(params) {
  89         if(params.fragment && params.fragment.node && params.fragment.node.isInside('list')) {
  90             var list = params.fragment.node.getParent('list');
  91             return list.getClass() === (type === 'Bullet' ? 'list' : 'list.enum');
  92         }
  93         return false;
  94     };
  95
  96
  97     return {
  98         name: 'toggle' + type + 'List',
  99         context: ['fragment'],
 100         params: {
 101             fragment: {type: 'context', name: 'fragment'}
 102         },
 103         stateDefaults: {
 104             label: type === 'Bullet' ? gettext('bull. list') : gettext('num. list')
 105         },
 106         getState: function(params) {
 107             if(!params.fragment || !params.fragment.isValid()) {
 108                 return false;
 109             }
 110
 111             if(params.fragment instanceof params.fragment.CaretFragment && params.fragment.node.isInside('list')) {
 112                 var list = params.fragment.node.getParent('list');
 113                 if((list.getClass() === 'list' && type === 'Enum') || (list.getClass() === 'list.enum' && type === 'Bullet')) {
 114                     return {
 115                         allowed: true,
 116                         description: interpolate(gettext('Change list type to %s'), [type]),
 117                         execute: execute.changeType
 118                     };
 119                 }
 120                 return {
 121                     allowed: true,
 122                     toggled: isToggled(params),
 123                     description: gettext('Remove list'),
 124                     execute: execute.remove
 125                 };
 126
 127             }
 128             var boundries = getBoundriesForAList(params.fragment);
 129             if(boundries) {
 130                 return {
 131                     allowed: true,
 132                     description: interpolate(gettext('Make %s fragment(s) into list'), [countItems(getBoundriesForAList(params.fragment))]),
 133                     execute: execute.add
 134                 };
 135             }
 136         }
 137     };
 138 };
 139
 140
 141 return {
 142     actions: [toggleListAction('Bullet'), toggleListAction('Enum')]
 143 };
 144
 145 });