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             });\r
  55                       \r
  56             this.node.onShow = function() {\r
  57                 if(!view.shownAlready) {\r
  58                     view.shownAlready = true;\r
  59                     view.selectFirstNode();\r
  60                 } else if(view.currentNode) {\r
  61                     view.movecaretToNode(view.getNodeElement(view.currentNode));\r
  62                     view.node.find('#rng-module-documentCanvas-contentWrapper').scrollTop(view.scrollbarPosition);\r
  63                 }\r
  64             };\r
  65             this.node.onHide = function() {\r
  66                 view.scrollbarPosition = view.node.find('#rng-module-documentCanvas-contentWrapper').scrollTop();\r
  67             }\r
  68                       \r
  69             this.gridToggled = false;\r
  70         },\r
  71         _createNode: function(wlxmlTag, wlxmlClass) {\r
  72             var toBlock = ['div', 'document', 'section', 'header'];\r
  73             var htmlTag = _.contains(toBlock, wlxmlTag) ? 'div' : 'span';\r
  74             var toret = $('<' + htmlTag + '>');\r
  75             toret.attr('wlxml-tag', wlxmlTag);\r
  76             if(wlxmlClass)\r
  77                 toret.attr('wlxml-class', wlxmlClass);\r
  78             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
  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(new wlxmlNode.Node(newNode), {movecaret: true});\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(new wlxmlNode.Node(newNode), {movecaret: true});\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(new wlxmlNode.Node(newNode), {movecaret: true});\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.movecaret) {\r
 175                 this.movecaretToNode(nodeElement);\r
 176             }\r
 177             \r
 178             this.currentNode = wlxmlNode;\r
 179             sandbox.publish('nodeSelected', wlxmlNode);\r
 180         },\r
 181         highlightNode: function(wlxmlNode) {\r
 182             var nodeElement = this.getNodeElement(wlxmlNode);\r
 183             if(!this.gridToggled) {\r
 184                 nodeElement.addClass('rng-common-hoveredNode');\r
 185                 var label = nodeElement.attr('wlxml-tag');\r
 186                 if(nodeElement.attr('wlxml-class'))\r
 187                     label += ' / ' + nodeElement.attr('wlxml-class');\r
 188                 var tag = $('<div>').addClass('rng-module-documentCanvas-hoveredNodeTag').text(label);\r
 189                 nodeElement.append(tag);\r
 190             }\r
 191         },\r
 192         dimNode: function(wlxmlNode) {\r
 193             var nodeElement = this.getNodeElement(wlxmlNode);\r
 194             if(!this.gridToggled) {\r
 195                 nodeElement.removeClass('rng-common-hoveredNode');\r
 196                 nodeElement.find('.rng-module-documentCanvas-hoveredNodeTag').remove();\r
 197             }\r
 198         },\r
 199         selectFirstNode: function() {\r
 200             var firstNodeWithText = this.node.find('[wlxml-tag]').filter(function() {\r
 201                 return $(this).clone().children().remove().end().text().trim() !== '';\r
 202             }).first();\r
 203             var node;\r
 204             if(firstNodeWithText.length)\r
 205                 node = $(firstNodeWithText[0])\r
 206             else {\r
 207                 node = this.node.find('[wlxml-class|="p"]')\r
 208             }\r
 209             this.selectNode(new wlxmlNode.Node(node), {movecaret: true});\r
 210         },\r
 211         toggleGrid: function(toggle) {\r
 212             this.node.find('[wlxml-tag]').toggleClass('rng-common-hoveredNode', toggle);\r
 213             this.gridToggled = toggle;\r
 214         },\r
 215         getNodeElement: function(wlxmlNode) {\r
 216             return this.node.find('#'+wlxmlNode.id);\r
 217         },\r
 218         movecaretToNode: function(nodeElement) {\r
 219             var range = document.createRange();\r
 220             range.selectNodeContents(nodeElement[0]);\r
 221             range.collapse(false);\r
 222             var selection = document.getSelection();\r
 223             selection.removeAllRanges()\r
 224             selection.addRange(range);\r
 225         }\r
 226     };\r
 227     \r
 228     view.setup();\r
 229 \r
 230     /* public api */\r
 231     return {\r
 232         start: function() { sandbox.publish('ready'); },\r
 233         getView: function() { \r
 234             return view.node;\r
 235         },\r
 236         setDocument: function(xml) {\r
 237             var transformed = transformations.fromXML.getDocumentDescription(xml);\r
 238             view.setBody(transformed.HTMLTree);\r
 239             sandbox.publish('documentSet');\r
 240         },\r
 241         getDocument: function() {\r
 242             return transformations.toXML.getXML(view.getBody());\r
 243         },\r
 244         modifyCurrentNode: function(attr, value) {\r
 245             if(view.currentNode) {\r
 246                 view.getNodeElement(view.currentNode).attr('wlxml-'+attr, value);\r
 247                 sandbox.publish('contentChanged');\r
 248             }\r
 249         },\r
 250         highlightNode: function(wlxmlNode) {\r
 251             view.highlightNode(wlxmlNode);\r
 252         },\r
 253         dimNode: function(wlxmlNode) {\r
 254             view.dimNode(wlxmlNode);\r
 255         },\r
 256         selectNode: function(wlxmlNode) {\r
 257             if(!wlxmlNode.is(view.currentNode))\r
 258                 view.selectNode(wlxmlNode, {movecaret: true});\r
 259         },\r
 260         toggleGrid: function(toggle) {\r
 261             view.toggleGrid(toggle);\r
 262         },\r
 263         insertNewNode: function(wlxmlTag, wlxmlClass) {\r
 264             view.insertNewNode(wlxmlTag, wlxmlClass);\r
 265         },\r
 266         wrapSelectionWithNewNode: function(wlxmlTag, wlxmlClass) {\r
 267             view.wrapSelectionWithNewNode(wlxmlTag, wlxmlClass);\r
 268         }\r
 269     }\r
 270     \r
 271 };\r
 272 \r
 273 });