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   1 <html><head><title>Roo/lib/Range.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.lib.Range
   3  * @constructor
   4  * This is a toolkit, normally used to copy features into a Dom Range element
   5  * Roo.lib.Range.wrap(x);
   6  *
   7  *
   8  *
   9  */
  10 </span><span class="jsdoc-var">Roo.lib.Range </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">() { };
  11
  12 </span><span class="jsdoc-comment">/**
  13  * Wrap a Dom Range object, to give it new features...
  14  * @static
  15  * @param {Range} the range to wrap
  16  */
  17 </span><span class="jsdoc-var">Roo.lib.Range.wrap </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">r</span><span class="jsdoc-syntax">) {
  18     </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">Roo.apply</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">r</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">Roo.lib.Range.prototype</span><span class="jsdoc-syntax">);
  19 };
  20 </span><span class="jsdoc-comment">/**
  21  * find a parent node eg. LI / OL
  22  * @param {string|Array} node name or array of nodenames
  23  * @return {DomElement|false}
  24  */
  25 </span><span class="jsdoc-var">Roo.apply</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">Roo.lib.Range.prototype</span><span class="jsdoc-syntax">,
  26 {
  27
  28     </span><span class="jsdoc-var">closest </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">str</span><span class="jsdoc-syntax">)
  29     {
  30         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">typeof</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">str</span><span class="jsdoc-syntax">) != </span><span class="jsdoc-string">'string'</span><span class="jsdoc-syntax">) {
  31             </span><span class="jsdoc-comment">// assume it's a array.
  32             </span><span class="jsdoc-keyword">for</span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">= 0;</span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">&lt; </span><span class="jsdoc-var">str.length</span><span class="jsdoc-syntax">;</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">++) {
  33                 </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">r </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">this.closest</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">str</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">]);
  34                 </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">r </span><span class="jsdoc-syntax">!== </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">) {
  35                     </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">r</span><span class="jsdoc-syntax">;
  36                 }
  37
  38             }
  39             </span><span class="jsdoc-keyword">return false</span><span class="jsdoc-syntax">;
  40         }
  41         </span><span class="jsdoc-var">str </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">str.toLowerCase</span><span class="jsdoc-syntax">();
  42         </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">n </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">this.commonAncestorContainer</span><span class="jsdoc-syntax">; </span><span class="jsdoc-comment">// might not be a node
  43         </span><span class="jsdoc-keyword">while </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">n.nodeType </span><span class="jsdoc-syntax">!= 1) {
  44             </span><span class="jsdoc-var">n </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">n.parentNode</span><span class="jsdoc-syntax">;
  45         }
  46
  47         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">n.nodeName.toLowerCase</span><span class="jsdoc-syntax">() == </span><span class="jsdoc-var">str </span><span class="jsdoc-syntax">) {
  48             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">n</span><span class="jsdoc-syntax">;
  49         }
  50         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">n.nodeName.toLowerCase</span><span class="jsdoc-syntax">() == </span><span class="jsdoc-string">'body'</span><span class="jsdoc-syntax">) {
  51             </span><span class="jsdoc-keyword">return false</span><span class="jsdoc-syntax">;
  52         }
  53
  54         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">n.closest</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">str</span><span class="jsdoc-syntax">) || </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">;
  55
  56     },
  57     </span><span class="jsdoc-var">cloneRange </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">()
  58     {
  59         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">Roo.lib.Range.wrap</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">Range.prototype.cloneRange.call</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">));
  60     }
  61 });</span></code></body></html>