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 'use strict';\r
  10 \r
  11 return function(sandbox) {\r
  12 \r
  13     var view = {\r
  14         node: $(_.template(template)()),\r
  15         currentNode: null,\r
  16         shownAlready: false,\r
  17         scrollbarPosition: 0,\r
  18         setup: function() {\r
  19             var view = this;\r
  20 \r
  21             this.node.find('#rng-module-documentCanvas-content').on('keyup', function() {\r
  22                 //isDirty = true;\r
  23                 sandbox.publish('contentChanged');\r
  24             });\r
  25 \r
  26             this.node.on('mouseover', '[wlxml-tag]', function(e) {\r
  27                 e.stopPropagation();\r
  28                 sandbox.publish('nodeHovered', new wlxmlNode.Node($(e.target)));\r
  29             });\r
  30             this.node.on('mouseout', '[wlxml-tag]', function(e) {\r
  31                 e.stopPropagation();\r
  32                 sandbox.publish('nodeBlured', new wlxmlNode.Node($(e.target)));\r
  33             });\r
  34             this.node.on('click', '[wlxml-tag]', function(e) {\r
  35                 e.stopPropagation();\r
  36                 console.log('clicked node type: '+e.target.nodeType);\r
  37                 view.selectNode(new wlxmlNode.Node($(e.target)));\r
  38             });\r
  39 \r
  40             this.node.on('keyup', '#rng-module-documentCanvas-contentWrapper', function(e) {\r
  41                 var anchor = $(window.getSelection().anchorNode);\r
  42                 if(anchor[0].nodeType === Node.TEXT_NODE)\r
  43                     anchor = anchor.parent();\r
  44                 if(!anchor.is('[wlxml-tag]'))\r
  45                     return;\r
  46                 view.selectNode(new wlxmlNode.Node(anchor));\r
  47             });\r
  48             \r
  49             this.node.on('keydown', '#rng-module-documentCanvas-contentWrapper', function(e) {\r
  50                 if(e.which === 13) { \r
  51                     e.preventDefault();\r
  52                     view.insertNewNode(null, null);\r
  53                 }\r
  54                 if(e.which === 8) {\r
  55                     var anchor = window.getSelection().anchorNode;\r
  56                     var len = anchor.length;\r
  57                     console.log(len);\r
  58                     if(len === 1) {\r
  59                         e.preventDefault();\r
  60                         $(anchor).parent().text('');\r
  61                     }\r
  62                 }\r
  63             });\r
  64                       \r
  65             this.node.onShow = function() {\r
  66                 if(!view.shownAlready) {\r
  67                     view.shownAlready = true;\r
  68                     view.selectFirstNode();\r
  69                 } else if(view.currentNode) {\r
  70                     view.movecaretToNode(view.getNodeElement(view.currentNode));\r
  71                     view.node.find('#rng-module-documentCanvas-contentWrapper').scrollTop(view.scrollbarPosition);\r
  72                 }\r
  73             };\r
  74             this.node.onHide = function() {\r
  75                 view.scrollbarPosition = view.node.find('#rng-module-documentCanvas-contentWrapper').scrollTop();\r
  76             }\r
  77                       \r
  78             this.gridToggled = false;\r
  79         },\r
  80         _createNode: function(wlxmlTag, wlxmlClass) {\r
  81             var toBlock = ['div', 'document', 'section', 'header'];\r
  82             var htmlTag = _.contains(toBlock, wlxmlTag) ? 'div' : 'span';\r
  83             var toret = $('<' + htmlTag + '>');\r
  84             toret.attr('wlxml-tag', wlxmlTag);\r
  85             if(wlxmlClass)\r
  86                 toret.attr('wlxml-class', wlxmlClass);\r
  87             toret.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
  88             return toret;\r
  89         },\r
  90         insertNewNode: function(wlxmlTag, wlxmlClass) {\r
  91             //TODO: Insert inline\r
  92             var anchor = $(window.getSelection().anchorNode);\r
  93             var anchorOffset = window.getSelection().anchorOffset;\r
  94             var textLen;\r
  95             if(anchor[0].nodeType === Node.TEXT_NODE) {\r
  96                 textLen = anchor.text().length;\r
  97                 anchor = anchor.parent();\r
  98             }\r
  99             if(anchor.text() === '') {\r
 100                 var todel = anchor;\r
 101                 anchor = anchor.parent();\r
 102                 todel.remove();\r
 103             }\r
 104             if(anchorOffset > 0 && anchorOffset < textLen) {\r
 105                 if(wlxmlTag === null && wlxmlClass === null) {\r
 106                     return this.splitWithNewNode(anchor);\r
 107                 }\r
 108                 return this.wrapSelectionWithNewNode(wlxmlTag, wlxmlClass);\r
 109             }\r
 110             var newNode = this._createNode(wlxmlTag || anchor.attr('wlxml-tag'), wlxmlClass || anchor.attr('wlxml-class'));\r
 111             if(anchorOffset === 0)\r
 112                 anchor.before(newNode)\r
 113             else\r
 114                 anchor.after(newNode);\r
 115             this.selectNode(new wlxmlNode.Node(newNode), {movecaret: true});\r
 116             //isDirty = true;\r
 117             sandbox.publish('contentChanged');\r
 118         },\r
 119         wrapSelectionWithNewNode: function(wlxmlTag, wlxmlClass) {\r
 120             var selection = window.getSelection();\r
 121             if(selection.anchorNode === selection.focusNode && selection.anchorNode.nodeType === Node.TEXT_NODE) {\r
 122                 var startOffset = selection.anchorOffset;\r
 123                 var endOffset = selection.focusOffset;\r
 124                 if(startOffset > endOffset) {\r
 125                     var tmp = startOffset;\r
 126                     startOffset = endOffset;\r
 127                     endOffset = tmp;\r
 128                 }\r
 129                 var node = selection.anchorNode;\r
 130                 var prefix = node.data.substr(0, startOffset);\r
 131                 var suffix = node.data.substr(endOffset);\r
 132                 var core = node.data.substr(startOffset, endOffset - startOffset);\r
 133                 var newNode = this._createNode(wlxmlTag, wlxmlClass);\r
 134                 newNode.text(core || 'test');\r
 135                 $(node).replaceWith(newNode);\r
 136                 newNode.before(prefix);\r
 137                 newNode.after(suffix);\r
 138                 \r
 139                 this.selectNode(new wlxmlNode.Node(newNode), {movecaret: true});\r
 140                 //isDirty = true;\r
 141                 sandbox.publish('contentChanged');\r
 142             }\r
 143         },\r
 144         splitWithNewNode: function(node) {\r
 145             var selection = window.getSelection();\r
 146             if(selection.anchorNode === selection.focusNode && selection.anchorNode.nodeType === Node.TEXT_NODE) {\r
 147                 var startOffset = selection.anchorOffset;\r
 148                 var endOffset = selection.focusOffset;\r
 149                 if(startOffset > endOffset) {\r
 150                     var tmp = startOffset;\r
 151                     startOffset = endOffset;\r
 152                     endOffset = tmp;\r
 153                 }\r
 154                 var anchor = selection.anchorNode;\r
 155                 var prefix = anchor.data.substr(0, startOffset);\r
 156                 var suffix = anchor.data.substr(endOffset);\r
 157                 var prefixNode = this._createNode(node.attr('wlxml-tag'), node.attr('wlxml-class'));\r
 158                 var newNode = this._createNode(node.attr('wlxml-tag'), node.attr('wlxml-class'));\r
 159                 var suffixNode = this._createNode(node.attr('wlxml-tag'), node.attr('wlxml-class'));\r
 160                 prefixNode.text(prefix);\r
 161                 suffixNode.text(suffix);\r
 162                 node.replaceWith(newNode);\r
 163                 newNode.before(prefixNode);\r
 164                 newNode.after(suffixNode);\r
 165                 \r
 166                 this.selectNode(new wlxmlNode.Node(newNode), {movecaret: true});\r
 167                 //isDirty = true;\r
 168                 sandbox.publish('contentChanged');\r
 169             }\r
 170         },\r
 171         setBody: function(HTMLTree) {\r
 172             this.node.find('#rng-module-documentCanvas-content').html(HTMLTree);\r
 173         },\r
 174         getBody: function() {\r
 175             return this.node.find('#rng-module-documentCanvas-content').html();\r
 176         }, \r
 177         selectNode: function(wlxmlNode, options) {\r
 178             options = options || {};\r
 179             var nodeElement = this.getNodeElement(wlxmlNode)\r
 180             \r
 181             this.dimNode(wlxmlNode);\r
 182             \r
 183             this.node.find('.rng-module-documentCanvas-currentNode').removeClass('rng-module-documentCanvas-currentNode');\r
 184             nodeElement.addClass('rng-module-documentCanvas-currentNode');\r
 185              \r
 186             if(options.movecaret) {\r
 187                 this.movecaretToNode(nodeElement);\r
 188             }\r
 189             \r
 190             this.currentNode = wlxmlNode;\r
 191             sandbox.publish('nodeSelected', wlxmlNode);\r
 192         },\r
 193         highlightNode: function(wlxmlNode) {\r
 194             var nodeElement = this.getNodeElement(wlxmlNode);\r
 195             if(!this.gridToggled) {\r
 196                 nodeElement.addClass('rng-common-hoveredNode');\r
 197                 var label = nodeElement.attr('wlxml-tag');\r
 198                 if(nodeElement.attr('wlxml-class'))\r
 199                     label += ' / ' + nodeElement.attr('wlxml-class');\r
 200                 var tag = $('<div>').addClass('rng-module-documentCanvas-hoveredNodeTag').text(label);\r
 201                 nodeElement.append(tag);\r
 202             }\r
 203         },\r
 204         dimNode: function(wlxmlNode) {\r
 205             var nodeElement = this.getNodeElement(wlxmlNode);\r
 206             if(!this.gridToggled) {\r
 207                 nodeElement.removeClass('rng-common-hoveredNode');\r
 208                 nodeElement.find('.rng-module-documentCanvas-hoveredNodeTag').remove();\r
 209             }\r
 210         },\r
 211         selectFirstNode: function() {\r
 212             var firstNodeWithText = this.node.find('[wlxml-tag]').filter(function() {\r
 213                 return $(this).clone().children().remove().end().text().trim() !== '';\r
 214             }).first();\r
 215             var node;\r
 216             if(firstNodeWithText.length)\r
 217                 node = $(firstNodeWithText[0])\r
 218             else {\r
 219                 node = this.node.find('[wlxml-class|="p"]')\r
 220             }\r
 221             this.selectNode(new wlxmlNode.Node(node), {movecaret: true});\r
 222         },\r
 223         toggleGrid: function(toggle) {\r
 224             this.node.find('[wlxml-tag]').toggleClass('rng-common-hoveredNode', toggle);\r
 225             this.gridToggled = toggle;\r
 226         },\r
 227         getNodeElement: function(wlxmlNode) {\r
 228             return this.node.find('#'+wlxmlNode.id);\r
 229         },\r
 230         movecaretToNode: function(nodeElement) {\r
 231             var range = document.createRange();\r
 232             range.selectNodeContents(nodeElement[0]);\r
 233             range.collapse(false);\r
 234             var selection = document.getSelection();\r
 235             selection.removeAllRanges()\r
 236             selection.addRange(range);\r
 237         }\r
 238     };\r
 239     \r
 240     view.setup();\r
 241 \r
 242     /* public api */\r
 243     return {\r
 244         start: function() { sandbox.publish('ready'); },\r
 245         getView: function() { \r
 246             return view.node;\r
 247         },\r
 248         setDocument: function(xml) {\r
 249             var transformed = transformations.fromXML.getDocumentDescription(xml);\r
 250             view.setBody(transformed.HTMLTree);\r
 251             sandbox.publish('documentSet');\r
 252         },\r
 253         getDocument: function() {\r
 254             return transformations.toXML.getXML(view.getBody());\r
 255         },\r
 256         modifyCurrentNode: function(attr, value) {\r
 257             if(view.currentNode) {\r
 258                 view.getNodeElement(view.currentNode).attr('wlxml-'+attr, value);\r
 259                 sandbox.publish('contentChanged');\r
 260             }\r
 261         },\r
 262         highlightNode: function(wlxmlNode) {\r
 263             view.highlightNode(wlxmlNode);\r
 264         },\r
 265         dimNode: function(wlxmlNode) {\r
 266             view.dimNode(wlxmlNode);\r
 267         },\r
 268         selectNode: function(wlxmlNode) {\r
 269             if(!wlxmlNode.is(view.currentNode))\r
 270                 view.selectNode(wlxmlNode, {movecaret: true});\r
 271         },\r
 272         toggleGrid: function(toggle) {\r
 273             view.toggleGrid(toggle);\r
 274         },\r
 275         insertNewNode: function(wlxmlTag, wlxmlClass) {\r
 276             view.insertNewNode(wlxmlTag, wlxmlClass);\r
 277         },\r
 278         wrapSelectionWithNewNode: function(wlxmlTag, wlxmlClass) {\r
 279             view.wrapSelectionWithNewNode(wlxmlTag, wlxmlClass);\r
 280         }\r
 281     }\r
 282     \r
 283 };\r
 284 \r
 285 });