xml/dom-impl/src/com/intellij/util/xml/tree/actions/DeleteDomElement.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.AnActionEvent;
  20 import com.intellij.openapi.application.ApplicationBundle;
  21 import com.intellij.openapi.application.Result;
  22 import com.intellij.openapi.command.WriteCommandAction;
  23 import com.intellij.openapi.ui.Messages;
  24 import com.intellij.openapi.util.IconLoader;
  25 import com.intellij.ui.treeStructure.SimpleNode;
  26 import com.intellij.util.xml.DomElement;
  27 import com.intellij.util.xml.DomFileElement;
  28 import com.intellij.util.xml.DomUtil;
  29 import com.intellij.util.xml.ElementPresentation;
  30 import com.intellij.util.xml.tree.BaseDomElementNode;
  31 import com.intellij.util.xml.tree.DomFileElementNode;
  32 import com.intellij.util.xml.tree.DomModelTreeView;
  33
  34 /**
  35  * User: Sergey.Vasiliev
  36  */
  37 public class DeleteDomElement extends BaseDomTreeAction {
  38
  39   public DeleteDomElement() {
  40   }
  41
  42   public DeleteDomElement(final DomModelTreeView treeView) {
  43     super(treeView);
  44   }
  45
  46   public void actionPerformed(AnActionEvent e, DomModelTreeView treeView) {
  47     final SimpleNode selectedNode = treeView.getTree().getSelectedNode();
  48
  49     if (selectedNode instanceof BaseDomElementNode) {
  50
  51       if (selectedNode instanceof DomFileElementNode) {
  52         e.getPresentation().setVisible(false);
  53         return;
  54       }
  55
  56       final DomElement domElement = ((BaseDomElementNode)selectedNode).getDomElement();
  57
  58       final int ret = Messages.showOkCancelDialog(getPresentationText(selectedNode) + "?", ApplicationBundle.message("action.remove"),
  59                                                   Messages.getQuestionIcon());
  60       if (ret == 0) {
  61       new WriteCommandAction(domElement.getManager().getProject(), DomUtil.getFile(domElement)) {
  62         protected void run(final Result result) throws Throwable {
  63           domElement.undefine();
  64         }
  65       }.execute();
  66       }
  67     }
  68   }
  69
  70   public void update(AnActionEvent e, DomModelTreeView treeView) {
  71     final SimpleNode selectedNode = treeView.getTree().getSelectedNode();
  72
  73     if (selectedNode instanceof DomFileElementNode) {
  74       e.getPresentation().setVisible(false);
  75       return;
  76     }
  77
  78     boolean enabled = false;
  79     if (selectedNode instanceof BaseDomElementNode) {
  80       final DomElement domElement = ((BaseDomElementNode)selectedNode).getDomElement();
  81       if (domElement.isValid() && DomUtil.hasXml(domElement) && !(domElement.getParent() instanceof DomFileElement)) {
  82         enabled = true;
  83       }
  84     }
  85
  86     e.getPresentation().setEnabled(enabled);
  87
  88
  89     if (enabled) {
  90       e.getPresentation().setText(getPresentationText(selectedNode));
  91     }
  92     else {
  93       e.getPresentation().setText(ApplicationBundle.message("action.remove"));
  94     }
  95
  96     e.getPresentation().setIcon(IconLoader.getIcon("/general/remove.png"));
  97   }
  98
  99   private static String getPresentationText(final SimpleNode selectedNode) {
 100     String removeString = ApplicationBundle.message("action.remove");
 101     final ElementPresentation presentation = ((BaseDomElementNode)selectedNode).getDomElement().getPresentation();
 102     removeString += " " + presentation.getTypeName() +
 103                                 (presentation.getElementName() == null || presentation.getElementName().trim().length() == 0? "" : ": " + presentation.getElementName());
 104     return removeString;
 105   }
 106 }