Add tree.destroy()

Update mar10#977

Author: mar10

CHANGELOG.md

@@ -1,6 +1,7 @@
-# 2.33.1-0 / Unreleased
+# 2.34.0-0 / Unreleased
   * TODO: tree.hasFocus() more reliable.
   * [Added] `tree.debugTime()`, `tree.debugTimeEnd()` for debugging.
+  * [Added] `tree.destroy()` as shortcut for `tree.widget.destroy()`.
   * [Fixed] #973 when use ext-grid in one tree, other tree not use ext-grid has error on click.
   * [Fixed] #974 ext-grid: too much output in production mode.
   * [Fixed] #975 ext-grid: fix `tree.visitRows()` for empty tree.

src/jquery.fancytree.js

@@ -3066,6 +3066,13 @@
 				consoleApply("log", arguments);
 			}
 		},
+		/** Destroy this widget, restore previous markup and cleanup resources.
+		 *
+		 * @since 2.33
+		 */
+		destroy: function() {
+			this.widget.destroy();
+		},
 		/** Enable (or disable) the tree control.
 		 *
 		 * @param {boolean} [flag=true] pass false to disable