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   1 <html><head><title>Roo/htmleditor/FilterEmpty.js</title><link rel="stylesheet" type="text/css" href="../../css/highlight-js.css"/></head><body class="highlightpage"><code class="jsdoc-pretty"><span class="jsdoc-comment">/**
   2  * @class Roo.htmleditor.FilterEmpty
   3  * filter empty elements
   4  * @constructor
   5  * Run a new Empty Filter
   6  * @param {Object} config Configuration options
   7  */
   8
   9 </span><span class="jsdoc-var">Roo.htmleditor.FilterEmpty </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">cfg</span><span class="jsdoc-syntax">)
  10 {
  11     </span><span class="jsdoc-comment">// no need to apply config.
  12     </span><span class="jsdoc-var">this.walk</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">cfg.node</span><span class="jsdoc-syntax">);
  13 }
  14
  15 </span><span class="jsdoc-var">Roo.extend</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">Roo.htmleditor.FilterEmpty</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">Roo.htmleditor.FilterBlack</span><span class="jsdoc-syntax">,
  16 {
  17
  18     </span><span class="jsdoc-var">tag </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">,
  19
  20
  21     </span><span class="jsdoc-var">replaceTag </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">)
  22     {
  23         </span><span class="jsdoc-comment">// start from leaf node
  24         </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node.hasChildNodes</span><span class="jsdoc-syntax">()) {
  25             </span><span class="jsdoc-var">this.walk</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">);
  26         }
  27
  28         </span><span class="jsdoc-comment">// only filter empty leaf element with certain tags
  29         </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(
  30             [</span><span class="jsdoc-string">'B'</span><span class="jsdoc-syntax">, </span><span class="jsdoc-string">'I'</span><span class="jsdoc-syntax">, </span><span class="jsdoc-string">'U'</span><span class="jsdoc-syntax">, </span><span class="jsdoc-string">'S'</span><span class="jsdoc-syntax">]</span><span class="jsdoc-var">.indexOf</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node.tagName</span><span class="jsdoc-syntax">) &lt; 0
  31             ||
  32             </span><span class="jsdoc-var">node.attributes </span><span class="jsdoc-syntax">&amp;&amp; </span><span class="jsdoc-var">node.attributes.length </span><span class="jsdoc-syntax">&gt; 0
  33             ||
  34             </span><span class="jsdoc-var">node.hasChildNodes</span><span class="jsdoc-syntax">()
  35         ) {
  36             </span><span class="jsdoc-keyword">return false</span><span class="jsdoc-syntax">; </span><span class="jsdoc-comment">// don't walk
  37         </span><span class="jsdoc-syntax">}
  38
  39         </span><span class="jsdoc-var">Roo.htmleditor.FilterBlack.prototype.replaceTag.call</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">);
  40         </span><span class="jsdoc-keyword">return false</span><span class="jsdoc-syntax">; </span><span class="jsdoc-comment">// don't walk
  41
  42     </span><span class="jsdoc-syntax">}
  43
  44 });</span></code></body></html>