modules/documentCanvas/documentCanvas.js

   1 // Module that implements main WYSIWIG edit area\r
   2 \r
   3 define([\r
   4 'libs/underscore-min',\r
   5 './transformations', \r
   6 './wlxmlNode',\r
   7 'libs/text!./template.html'], function(_, transformations, wlxmlNode, template) {\r
   8 \r
   9 \r
  10 \r
  11 return function(sandbox) {\r
  12 \r
  13     var view = {\r
  14         node: $(_.template(template)()),\r
  15         currentNode: null,\r
  16         setup: function() {\r
  17             var view = this;\r
  18 \r
  19             this.node.find('#rng-module-documentCanvas-content').on('keyup', function() {\r
  20                 //isDirty = true;\r
  21                 sandbox.publish('contentChanged');\r
  22             });\r
  23 \r
  24             this.node.on('mouseover', '[wlxml-tag]', function(e) {\r
  25                 e.stopPropagation();\r
  26                 sandbox.publish('nodeHovered', new wlxmlNode.Node($(e.target)));\r
  27             });\r
  28             this.node.on('mouseout', '[wlxml-tag]', function(e) {\r
  29                 e.stopPropagation();\r
  30                 sandbox.publish('nodeBlured', new wlxmlNode.Node($(e.target)));\r
  31             });\r
  32             this.node.on('click', '[wlxml-tag]', function(e) {\r
  33                 e.stopPropagation();\r
  34                 console.log('clicked node type: '+e.target.nodeType);\r
  35                 view.selectNode(new wlxmlNode.Node($(e.target)));\r
  36             });\r
  37 \r
  38             this.node.on('keyup', '#rng-module-documentCanvas-contentWrapper', function(e) {\r
  39                 var anchor = $(window.getSelection().anchorNode);\r
  40                 if(anchor[0].nodeType === Node.TEXT_NODE)\r
  41                     anchor = anchor.parent();\r
  42                 if(!anchor.is('[wlxml-tag]'))\r
  43                     return;\r
  44                 view.selectNode(new wlxmlNode.Node(anchor));\r
  45             });\r
  46             \r
  47             this.node.on('keydown', '#rng-module-documentCanvas-contentWrapper', function(e) {\r
  48                 if(e.which === 13) { \r
  49                     e.preventDefault();\r
  50                     view.insertNewNode(null, null);\r
  51                 }\r
  52             });\r
  53             \r
  54             \r
  55             var observer = new MutationObserver(function(mutations) {\r
  56               mutations.forEach(function(mutation) {\r
  57                 _.each(mutation.addedNodes, function(node) {\r
  58                     node = $(node);\r
  59                     node.parent().find('[wlxml-tag]').each(function() {\r
  60                         tag = $(this);\r
  61                         if(!tag.attr('id'))\r
  62                             tag.attr('id', 'xxxxxxxx-xxxx-xxxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {var r = Math.random()*16|0,v=c=='x'?r:r&0x3|0x8;return v.toString(16);}));\r
  63                     });\r
  64                 });\r
  65               });    \r
  66             });\r
  67             var config = { attributes: true, childList: true, characterData: true, subtree: true };\r
  68             observer.observe(this.node.find('#rng-module-documentCanvas-contentWrapper')[0], config);\r
  69             \r
  70             this.gridToggled = false;\r
  71         },\r
  72         _createNode: function(wlxmlTag, wlxmlClass) {\r
  73             var toBlock = ['div', 'document', 'section', 'header'];\r
  74             var htmlTag = _.contains(toBlock, wlxmlTag) ? 'div' : 'span';\r
  75             var toret = $('<' + htmlTag + '>');\r
  76             toret.attr('wlxml-tag', wlxmlTag);\r
  77             if(wlxmlClass)\r
  78                 toret.attr('wlxml-class', wlxmlClass);\r
  79             return toret;\r
  80         },\r
  81         insertNewNode: function(wlxmlTag, wlxmlClass) {\r
  82             //TODO: Insert inline\r
  83             var anchor = $(window.getSelection().anchorNode);\r
  84             var anchorOffset = window.getSelection().anchorOffset;\r
  85             if(anchor[0].nodeType === Node.TEXT_NODE)\r
  86                 anchor = anchor.parent();\r
  87             if(anchor.text() === '') {\r
  88                 var todel = anchor;\r
  89                 anchor = anchor.parent();\r
  90                 todel.remove();\r
  91             }\r
  92             if(anchorOffset > 0 && anchorOffset < anchor.text().length) {\r
  93                 if(wlxmlTag === null && wlxmlClass === null) {\r
  94                     return this.splitWithNewNode(anchor);\r
  95                 }\r
  96                 return this.wrapSelectionWithNewNode(wlxmlTag, wlxmlClass);\r
  97             }\r
  98             var newNode = this._createNode(wlxmlTag || anchor.attr('wlxml-tag'), wlxmlClass || anchor.attr('wlxml-class'));\r
  99             if(anchorOffset === 0)\r
 100                 anchor.before(newNode)\r
 101             else\r
 102                 anchor.after(newNode);\r
 103             this.selectNode(newNode);\r
 104             //isDirty = true;\r
 105             sandbox.publish('contentChanged');\r
 106         },\r
 107         wrapSelectionWithNewNode: function(wlxmlTag, wlxmlClass) {\r
 108             var selection = window.getSelection();\r
 109             if(selection.anchorNode === selection.focusNode && selection.anchorNode.nodeType === Node.TEXT_NODE) {\r
 110                 var startOffset = selection.anchorOffset;\r
 111                 var endOffset = selection.focusOffset;\r
 112                 if(startOffset > endOffset) {\r
 113                     var tmp = startOffset;\r
 114                     startOffset = endOffset;\r
 115                     endOffset = tmp;\r
 116                 }\r
 117                 var node = selection.anchorNode;\r
 118                 var prefix = node.data.substr(0, startOffset);\r
 119                 var suffix = node.data.substr(endOffset);\r
 120                 var core = node.data.substr(startOffset, endOffset - startOffset);\r
 121                 var newNode = this._createNode(wlxmlTag, wlxmlClass);\r
 122                 newNode.text(core || 'test');\r
 123                 $(node).replaceWith(newNode);\r
 124                 newNode.before(prefix);\r
 125                 newNode.after(suffix);\r
 126                 \r
 127                 this.selectNode(newNode);\r
 128                 //isDirty = true;\r
 129                 sandbox.publish('contentChanged');\r
 130             }\r
 131         },\r
 132         splitWithNewNode: function(node) {\r
 133             var selection = window.getSelection();\r
 134             if(selection.anchorNode === selection.focusNode && selection.anchorNode.nodeType === Node.TEXT_NODE) {\r
 135                 var startOffset = selection.anchorOffset;\r
 136                 var endOffset = selection.focusOffset;\r
 137                 if(startOffset > endOffset) {\r
 138                     var tmp = startOffset;\r
 139                     startOffset = endOffset;\r
 140                     endOffset = tmp;\r
 141                 }\r
 142                 var anchor = selection.anchorNode;\r
 143                 var prefix = anchor.data.substr(0, startOffset);\r
 144                 var suffix = anchor.data.substr(endOffset);\r
 145                 var prefixNode = this._createNode(node.attr('wlxml-tag'), node.attr('wlxml-class'));\r
 146                 var newNode = this._createNode(node.attr('wlxml-tag'), node.attr('wlxml-class'));\r
 147                 var suffixNode = this._createNode(node.attr('wlxml-tag'), node.attr('wlxml-class'));\r
 148                 prefixNode.text(prefix);\r
 149                 suffixNode.text(suffix);\r
 150                 node.replaceWith(newNode);\r
 151                 newNode.before(prefixNode);\r
 152                 newNode.after(suffixNode);\r
 153                 \r
 154                 this.selectNode(newNode);\r
 155                 //isDirty = true;\r
 156                 sandbox.publish('contentChanged');\r
 157             }\r
 158         },\r
 159         setBody: function(HTMLTree) {\r
 160             this.node.find('#rng-module-documentCanvas-content').html(HTMLTree);\r
 161         },\r
 162         getBody: function() {\r
 163             return this.node.find('#rng-module-documentCanvas-content').html();\r
 164         }, \r
 165         selectNode: function(wlxmlNode, options) {\r
 166             options = options || {};\r
 167             var nodeElement = this.getNodeElement(wlxmlNode)\r
 168             \r
 169             this.dimNode(wlxmlNode);\r
 170             \r
 171             this.node.find('.rng-module-documentCanvas-currentNode').removeClass('rng-module-documentCanvas-currentNode');\r
 172             nodeElement.addClass('rng-module-documentCanvas-currentNode');\r
 173              \r
 174             if(options.moveCarret) {\r
 175                 var range = document.createRange();\r
 176                 range.selectNodeContents(nodeElement[0]);\r
 177                 range.collapse(false);\r
 178                 var selection = document.getSelection();\r
 179                 selection.removeAllRanges()\r
 180                 selection.addRange(range);\r
 181             }\r
 182             \r
 183             this.currentNode = wlxmlNode;\r
 184             sandbox.publish('nodeSelected', wlxmlNode);\r
 185         },\r
 186         highlightNode: function(wlxmlNode) {\r
 187             var nodeElement = this.getNodeElement(wlxmlNode);\r
 188             if(!this.gridToggled) {\r
 189                 nodeElement.addClass('rng-common-hoveredNode');\r
 190                 var label = nodeElement.attr('wlxml-tag');\r
 191                 if(nodeElement.attr('wlxml-class'))\r
 192                     label += ' / ' + nodeElement.attr('wlxml-class');\r
 193                 var tag = $('<div>').addClass('rng-module-documentCanvas-hoveredNodeTag').text(label);\r
 194                 nodeElement.append(tag);\r
 195             }\r
 196         },\r
 197         dimNode: function(wlxmlNode) {\r
 198             var nodeElement = this.getNodeElement(wlxmlNode);\r
 199             if(!this.gridToggled) {\r
 200                 nodeElement.removeClass('rng-common-hoveredNode');\r
 201                 nodeElement.find('.rng-module-documentCanvas-hoveredNodeTag').remove();\r
 202             }\r
 203         },\r
 204         selectFirstNode: function() {\r
 205             var firstNodeWithText = this.node.find('[wlxml-tag]').filter(function() {\r
 206                 return $(this).clone().children().remove().end().text().trim() !== '';\r
 207             }).first();\r
 208             var node;\r
 209             if(firstNodeWithText.length)\r
 210                 node = $(firstNodeWithText[0])\r
 211             else {\r
 212                 node = this.node.find('[wlxml-class|="p"]')\r
 213             }\r
 214             this.selectNode(new wlxmlNode.Node(node));\r
 215         },\r
 216         toggleGrid: function(toggle) {\r
 217             this.node.find('[wlxml-tag]').toggleClass('rng-common-hoveredNode', toggle);\r
 218             this.gridToggled = toggle;\r
 219         },\r
 220         getNodeElement: function(wlxmlNode) {\r
 221             return this.node.find('#'+wlxmlNode.id);\r
 222         }\r
 223     };\r
 224     \r
 225     view.setup();\r
 226 \r
 227     /* public api */\r
 228     return {\r
 229         start: function() { sandbox.publish('ready'); },\r
 230         getView: function() { return view.node; },\r
 231         setDocument: function(xml) {\r
 232             var transformed = transformations.fromXML.getDocumentDescription(xml);\r
 233             view.setBody(transformed.HTMLTree);\r
 234             view.selectFirstNode();\r
 235             sandbox.publish('documentSet');\r
 236         },\r
 237         getDocument: function() {\r
 238             return transformations.toXML.getXML(view.getBody());\r
 239         },\r
 240         modifyCurrentNode: function(attr, value) {\r
 241             if(view.currentNode) {\r
 242                 view.getNodeElement(view.currentNode).attr('wlxml-'+attr, value);\r
 243                 sandbox.publish('contentChanged');\r
 244             }\r
 245         },\r
 246         highlightNode: function(wlxmlNode) {\r
 247             view.highlightNode(wlxmlNode);\r
 248         },\r
 249         dimNode: function(wlxmlNode) {\r
 250             view.dimNode(wlxmlNode);\r
 251         },\r
 252         selectNode: function(wlxmlNode) {\r
 253             if(!wlxmlNode.is(view.currentNode))\r
 254                 view.selectNode(wlxmlNode, {moveCarret: true});\r
 255         },\r
 256         toggleGrid: function(toggle) {\r
 257             view.toggleGrid(toggle);\r
 258         },\r
 259         insertNewNode: function(wlxmlTag, wlxmlClass) {\r
 260             view.insertNewNode(wlxmlTag, wlxmlClass);\r
 261         },\r
 262         wrapSelectionWithNewNode: function(wlxmlTag, wlxmlClass) {\r
 263             view.wrapSelectionWithNewNode(wlxmlTag, wlxmlClass);\r
 264         }\r
 265     }\r
 266     \r
 267 };\r
 268 \r
 269 });