src/editor/modules/documentCanvas/canvas/genericElement.js

   1 define(function(require) {
   2
   3 'use strict';
   4
   5 var $ = require('libs/jquery'),
   6     _ = require('libs/underscore'),
   7     documentElement = require('./documentElement'),
   8     utils = require('./utils'),
   9     wlxmlUtils = require('utils/wlxml'),
  10     CommentsView = require('./comments/comments');
  11
  12 var labelWidget = function(tag, klass) {
  13     return $('<span>')
  14         .addClass('canvas-widget canvas-widget-label')
  15         .text(wlxmlUtils.getTagLabel(tag) + (klass ? ' / ' + wlxmlUtils.getClassLabel(klass) : ''));
  16 };
  17 void(labelWidget); // for linters; labelWidget is unused on purpose for now
  18
  19 var DocumentNodeElement = documentElement.DocumentNodeElement;
  20
  21 var generic = Object.create(DocumentNodeElement.prototype);
  22
  23 $.extend(generic, {
  24     init: function() {
  25         DocumentNodeElement.prototype.init.call(this);
  26         this._container()
  27             .attr('wlxml-tag', this.wlxmlNode.getTagName());
  28         this.setWlxmlClass(this.wlxmlNode.getClass());
  29         this.wlxmlNode.contents().forEach(function(node) {
  30             var el = this.canvas.createElement(node);
  31             if(el.dom) {
  32                 this._container().append(el.dom);
  33             }
  34         }.bind(this));
  35
  36         this.commentsView = new CommentsView(this.wlxmlNode, this.canvas.metadata.user);
  37         this.addToGutter(this.commentsView);
  38         this.commentTip = $('<div class="comment-tip"><i class="icon-comment"></i></div>');
  39         this.addWidget(this.commentTip);
  40
  41         if(!this.wlxmlNode.hasChild({klass: 'comment'})) {
  42             this.commentTip.hide();
  43         }
  44
  45         this.refresh();
  46     },
  47
  48     refresh: function() {
  49         if(this.wlxmlNode.getTagName() === 'span') {
  50             if(this.containsBlock()) {
  51                 this.displayAsBlock();
  52             } else {
  53                 this.displayInline();
  54             }
  55         } else {
  56             this.displayAsBlock();
  57         }
  58     },
  59
  60     getFirst: function(e1, e2) {
  61         var idx1 = this.childIndex(e1),
  62             idx2 = this.childIndex(e2);
  63         if(e1 === null || e2 === null) {
  64             return undefined;
  65         }
  66         return idx1 <= idx2 ? e1: e2;
  67     },
  68
  69     children: function() {
  70         var element = this,
  71             toret = [];
  72         this._container().contents().each(function() {
  73             var childElement = element.canvas.getDocumentElement(this);
  74             if(childElement === undefined) {
  75                 return true;
  76             }
  77
  78             toret.push(childElement);
  79         });
  80         return toret;
  81     },
  82
  83     getVerticallyFirstTextElement: function() {
  84         var toret;
  85         this.children().some(function(child) {
  86             if(child instanceof documentElement.DocumentTextElement) {
  87                 toret = child;
  88                 return true; // break
  89             } else {
  90                 toret = child.getVerticallyFirstTextElement();
  91                 if(toret) {
  92                     return true; // break
  93                 }
  94             }
  95         });
  96         return toret;
  97     },
  98
  99     onNodeAttrChange: function(event) {
 100         if(event.meta.attr === 'class') {
 101             this.setWlxmlClass(event.meta.newVal); //
 102         }
 103     },
 104     onNodeAdded: function(event) {
 105         if(event.meta.node.isRoot()) {
 106             this.canvas.reloadRoot();
 107             return;
 108         }
 109
 110         var ptr = event.meta.node.prev(),
 111             referenceElement, referenceAction, actionArg;
 112
 113         while(ptr && !(referenceElement = utils.getElementForElementRootNode(ptr))) {
 114             ptr = ptr.prev();
 115         }
 116
 117         if(referenceElement) {
 118             referenceAction = 'after';
 119         } else {
 120             referenceElement = this;
 121             referenceAction = 'prepend';
 122         }
 123
 124         if(event.meta.move) {
 125             /* Let's check if this node had its own canvas element and it's accessible. */
 126             actionArg = utils.getElementForElementRootNode(event.meta.node);
 127         }
 128         if(!actionArg) {
 129             actionArg = event.meta.node;
 130         }
 131
 132         referenceElement[referenceAction](actionArg);
 133
 134         if(event.meta.node.is('comment')) {
 135             this.commentTip.show();
 136             this.commentsView.render();
 137         }
 138     },
 139     onNodeDetached: function(event) {
 140         var isComment = event.meta.node.is('comment');
 141         if(event.meta.node.sameNode(this)) {
 142             this.detach();
 143         } else {
 144             this.children().some(function(child) {
 145                 if(child.wlxmlNode.sameNode(event.meta.node)) {
 146                     child.detach();
 147                     return true;
 148                 }
 149             });
 150             if(isComment && !this.wlxmlNode.hasChild({klass: 'comment'})) {
 151                 this.commentTip.hide();
 152             }
 153             this.commentsView.render();
 154         }
 155     },
 156     onNodeTextChange: function(event) {
 157         var node = event.meta.node,
 158             toSet = node.getText(),
 159             handled;
 160
 161         handled = this.children().some(function(child) {
 162             if(child.wlxmlNode.sameNode(node)) {
 163                 if(toSet === '') {
 164                     toSet = utils.unicode.ZWS;
 165                 }
 166                 if(toSet !== child.getText()) {
 167                     child.setText(toSet);
 168                 }
 169                 return true;
 170             }
 171         });
 172
 173         if(!handled && node.parent() && node.parent().is('comment') && this.wlxmlNode.sameNode(node.parent().parent())) {
 174             this.commentsView.render();
 175         }
 176     },
 177
 178     onStateChange: function(changes) {
 179         if(_.isBoolean(changes.exposed) && !this.isSpan()) {
 180             this._container().toggleClass('highlighted-element', changes.exposed);
 181         }
 182         if(_.isBoolean(changes.active) && !this.isSpan()) {
 183             this._container().toggleClass('current-node-element', changes.active);
 184         }
 185     },
 186
 187     ///
 188
 189     isSpan: function() {
 190         return this.wlxmlNode.getTagName() === 'span';
 191     },
 192
 193     containsBlock: function() {
 194         return this.children()
 195             .filter(function(child) {
 196                 return child instanceof documentElement.DocumentNodeElement;
 197             })
 198             .some(function(child) {
 199                 if(child.isBlock()) {
 200                     return true;
 201                 } else {
 202                     return child.containsBlock();
 203                 }
 204             });
 205     },
 206
 207     prepend: function(param) {
 208         var element;
 209         if(param instanceof documentElement.DocumentElement) {
 210             element = param;
 211         } else {
 212             element = this.canvas.createElement(param);
 213         }
 214         if(element.dom) {
 215             this._container().prepend(element.dom);
 216             this.refreshPath();
 217         }
 218         return element;
 219     },
 220
 221     childIndex: function(child) {
 222         var children = this.children(),
 223             toret = null;
 224         children.forEach(function(c, idx) {
 225             if(c.sameNode(child)) {
 226                 toret = idx;
 227                 return false;
 228             }
 229         });
 230         return toret;
 231     },
 232
 233     getWlxmlClass: function() {
 234         var klass = this._container().attr('wlxml-class');
 235         if(klass) {
 236             return klass.replace(/-/g, '.');
 237         }
 238         return undefined;
 239     },
 240     setWlxmlClass: function(klass) {
 241         if(klass === this.getWlxmlClass()) {
 242             return;
 243         }
 244         if(klass) {
 245             this._container().attr('wlxml-class', klass.replace(/\./g, '-'));
 246         }
 247         else {
 248             this._container().removeAttr('wlxml-class');
 249         }
 250         this.refreshPath();
 251     }
 252 });
 253
 254
 255 return generic;
 256
 257
 258
 259 });