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