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

   1 /*
   2  * Copyright (c) 2000-2006 JetBrains s.r.o. All Rights Reserved.
   3  */
   4
   5 package com.intellij.util.xml.tree.actions;
   6
   7 import com.intellij.openapi.actionSystem.AnActionEvent;
   8 import com.intellij.openapi.application.ApplicationBundle;
   9 import com.intellij.openapi.application.Result;
  10 import com.intellij.openapi.command.WriteCommandAction;
  11 import com.intellij.openapi.util.IconLoader;
  12 import com.intellij.openapi.ui.Messages;
  13 import com.intellij.ui.treeStructure.SimpleNode;
  14 import com.intellij.util.xml.DomElement;
  15 import com.intellij.util.xml.ElementPresentation;
  16 import com.intellij.util.xml.tree.BaseDomElementNode;
  17 import com.intellij.util.xml.tree.DomFileElementNode;
  18 import com.intellij.util.xml.tree.DomModelTreeView;
  19
  20 /**
  21  * User: Sergey.Vasiliev
  22  */
  23 public class DeleteDomElement extends BaseDomTreeAction {
  24
  25   public DeleteDomElement() {
  26   }
  27
  28   public DeleteDomElement(final DomModelTreeView treeView) {
  29     super(treeView);
  30   }
  31
  32   public void actionPerformed(AnActionEvent e, DomModelTreeView treeView) {
  33     final SimpleNode selectedNode = treeView.getTree().getSelectedNode();
  34
  35     if (selectedNode instanceof BaseDomElementNode) {
  36
  37       final DomElement domElement = ((BaseDomElementNode)selectedNode).getDomElement();
  38
  39       final int ret = Messages.showOkCancelDialog(getPresentationText(selectedNode) + "?", ApplicationBundle.message("action.remove"),
  40                                                   Messages.getQuestionIcon());
  41       if (ret == 0) {
  42       new WriteCommandAction(domElement.getManager().getProject(), domElement.getRoot().getFile()) {
  43         protected void run(final Result result) throws Throwable {
  44           domElement.undefine();
  45         }
  46       }.execute();
  47       }
  48     }
  49   }
  50
  51   public void update(AnActionEvent e, DomModelTreeView treeView) {
  52     final SimpleNode selectedNode = treeView.getTree().getSelectedNode();
  53
  54     if (selectedNode instanceof DomFileElementNode) {
  55       e.getPresentation().setVisible(false);
  56       return;
  57     }
  58
  59     boolean enabled = false;
  60     if (selectedNode instanceof BaseDomElementNode) {
  61       final DomElement domElement = ((BaseDomElementNode)selectedNode).getDomElement();
  62       if (domElement.isValid() && domElement.getXmlElement() != null && !domElement.equals(domElement.getRoot().getRootElement())) {
  63         enabled = true;
  64       }
  65     }
  66
  67     e.getPresentation().setEnabled(enabled);
  68
  69
  70     if (enabled) {
  71       e.getPresentation().setText(getPresentationText(selectedNode));
  72     }
  73     else {
  74       e.getPresentation().setText(ApplicationBundle.message("action.remove"));
  75     }
  76
  77     e.getPresentation().setIcon(IconLoader.getIcon("/general/remove.png"));
  78   }
  79
  80   private static String getPresentationText(final SimpleNode selectedNode) {
  81     String removeString = ApplicationBundle.message("action.remove");
  82     final ElementPresentation presentation = ((BaseDomElementNode)selectedNode).getDomElement().getPresentation();
  83     removeString += " " + presentation.getTypeName() +
  84                                 (presentation.getElementName() == null || presentation.getElementName().trim().length() == 0? "" : ": " + presentation.getElementName());
  85     return removeString;
  86   }
  87 }