| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.xdebugger.impl.ui.tree.actions; |
| |
| import com.intellij.openapi.actionSystem.AnAction; |
| import com.intellij.openapi.actionSystem.AnActionEvent; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.xdebugger.frame.XValue; |
| import com.intellij.xdebugger.impl.ui.tree.XDebuggerTree; |
| import com.intellij.xdebugger.impl.ui.tree.nodes.XValueNodeImpl; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import javax.swing.tree.TreePath; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * @author nik |
| */ |
| public abstract class XDebuggerTreeActionBase extends AnAction { |
| @Override |
| public void actionPerformed(final AnActionEvent e) { |
| XValueNodeImpl node = getSelectedNode(e.getDataContext()); |
| if (node != null) { |
| String nodeName = node.getName(); |
| if (nodeName != null) { |
| perform(node, nodeName, e); |
| } |
| } |
| } |
| |
| protected abstract void perform(final XValueNodeImpl node, @NotNull String nodeName, final AnActionEvent e); |
| |
| @Override |
| public void update(final AnActionEvent e) { |
| XValueNodeImpl node = getSelectedNode(e.getDataContext()); |
| e.getPresentation().setEnabled(node != null && isEnabled(node, e)); |
| } |
| |
| protected boolean isEnabled(final @NotNull XValueNodeImpl node, @NotNull AnActionEvent e) { |
| return node.getName() != null; |
| } |
| |
| @NotNull |
| public static List<XValueNodeImpl> getSelectedNodes(DataContext dataContext) { |
| XDebuggerTree tree = XDebuggerTree.getTree(dataContext); |
| if (tree == null) return Collections.emptyList(); |
| |
| TreePath[] paths = tree.getSelectionPaths(); |
| if (paths == null || paths.length == 0) { |
| return Collections.emptyList(); |
| } |
| List<XValueNodeImpl> nodes = new ArrayList<XValueNodeImpl>(paths.length); |
| for (TreePath path : paths) { |
| Object component = path.getLastPathComponent(); |
| if (component instanceof XValueNodeImpl) { |
| nodes.add((XValueNodeImpl) component); |
| } |
| } |
| return nodes; |
| } |
| |
| @Nullable |
| public static XValueNodeImpl getSelectedNode(final DataContext dataContext) { |
| XDebuggerTree tree = XDebuggerTree.getTree(dataContext); |
| if (tree == null) return null; |
| |
| TreePath path = tree.getSelectionPath(); |
| if (path == null) return null; |
| |
| Object node = path.getLastPathComponent(); |
| return node instanceof XValueNodeImpl ? (XValueNodeImpl)node : null; |
| } |
| |
| @Nullable |
| public static XValue getSelectedValue(@NotNull DataContext dataContext) { |
| XValueNodeImpl node = getSelectedNode(dataContext); |
| return node != null ? node.getValueContainer() : null; |
| } |
| } |