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