xml/dom-impl/src/com/intellij/util/xml/tree/actions/BaseDomTreeAction.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package com.intellij.util.xml.tree.actions;
  18
  19 import com.intellij.openapi.actionSystem.AnAction;
  20 import com.intellij.openapi.actionSystem.AnActionEvent;
  21 import com.intellij.util.xml.tree.DomModelTreeView;
  22
  23 /**
  24  * User: Sergey.Vasiliev
  25  */
  26 abstract public class BaseDomTreeAction extends AnAction  {
  27 private DomModelTreeView myTreeView;
  28
  29   protected BaseDomTreeAction() {
  30   }
  31
  32   protected BaseDomTreeAction(DomModelTreeView treeView) {
  33     myTreeView = treeView;
  34   }
  35
  36   final public void update(AnActionEvent e) {
  37     final DomModelTreeView treeView = getTreeView(e);
  38
  39     if (treeView != null) {
  40       update(e, treeView);
  41     }
  42     else {
  43       e.getPresentation().setEnabled(false);
  44     }
  45   }
  46
  47   protected DomModelTreeView getTreeView(AnActionEvent e) {
  48     if (myTreeView != null) return myTreeView;
  49
  50     return (DomModelTreeView)e.getDataContext().getData(DomModelTreeView.DOM_MODEL_TREE_VIEW_KEY);
  51   }
  52
  53   final public void actionPerformed(AnActionEvent e) {
  54     final DomModelTreeView treeView = getTreeView(e);
  55     if (treeView != null) {
  56       actionPerformed(e, treeView);
  57     }
  58   }
  59
  60   public abstract void actionPerformed(AnActionEvent e, DomModelTreeView treeView);
  61
  62   public  abstract void update(AnActionEvent e, DomModelTreeView treeView);
  63 }
  64