com.intellij.debugger.actions.PopFrameAction.java Source code

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Here is the source code for com.intellij.debugger.actions.PopFrameAction.java

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/*
 * 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.
 */

/*
 * @author Eugene Zhuravlev
 */
package com.intellij.debugger.actions;

import com.intellij.debugger.DebuggerBundle;
import com.intellij.debugger.engine.DebugProcessImpl;
import com.intellij.debugger.engine.SuspendContextImpl;
import com.intellij.debugger.impl.DebuggerContextImpl;
import com.intellij.debugger.jdi.StackFrameProxyImpl;
import com.intellij.debugger.jdi.VirtualMachineProxyImpl;
import com.intellij.debugger.ui.impl.watch.*;
import com.intellij.idea.ActionsBundle;
import com.intellij.openapi.actionSystem.ActionPlaces;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.Messages;
import consulo.internal.com.sun.jdi.InvalidStackFrameException;
import consulo.internal.com.sun.jdi.NativeMethodException;
import consulo.internal.com.sun.jdi.VMDisconnectedException;
import org.jetbrains.annotations.Nullable;

public class PopFrameAction extends DebuggerAction {
    public void actionPerformed(AnActionEvent e) {
        Project project = e.getData(CommonDataKeys.PROJECT);
        StackFrameProxyImpl stackFrame = getStackFrameProxy(e);
        if (stackFrame == null) {
            return;
        }
        try {
            DebuggerContextImpl debuggerContext = DebuggerAction.getDebuggerContext(e.getDataContext());
            DebugProcessImpl debugProcess = debuggerContext.getDebugProcess();
            if (debugProcess == null) {
                return;
            }
            debugProcess.getManagerThread()
                    .schedule(debugProcess.createPopFrameCommand(debuggerContext, stackFrame));
        } catch (NativeMethodException e2) {
            Messages.showMessageDialog(project, DebuggerBundle.message("error.native.method.exception"),
                    ActionsBundle.actionText(DebuggerActions.POP_FRAME), Messages.getErrorIcon());
        } catch (InvalidStackFrameException ignored) {
        } catch (VMDisconnectedException vde) {
        }
    }

    @Nullable
    private static StackFrameProxyImpl getStackFrameProxy(AnActionEvent e) {
        DebuggerTreeNodeImpl selectedNode = getSelectedNode(e.getDataContext());
        if (selectedNode != null) {
            NodeDescriptorImpl descriptor = selectedNode.getDescriptor();
            if (descriptor instanceof StackFrameDescriptorImpl) {
                if (selectedNode.getNextSibling() != null) {
                    StackFrameDescriptorImpl frameDescriptor = ((StackFrameDescriptorImpl) descriptor);
                    return frameDescriptor.getFrameProxy();
                }
                return null;
            } else if (descriptor instanceof ThreadDescriptorImpl
                    || descriptor instanceof ThreadGroupDescriptorImpl) {
                return null;
            }
        }
        DebuggerContextImpl debuggerContext = DebuggerAction.getDebuggerContext(e.getDataContext());
        StackFrameProxyImpl frameProxy = debuggerContext.getFrameProxy();

        if (frameProxy == null || frameProxy.isBottom()) {
            return null;
        }
        return frameProxy;
    }

    private static boolean isAtBreakpoint(AnActionEvent e) {
        DebuggerTreeNodeImpl selectedNode = getSelectedNode(e.getDataContext());
        if (selectedNode != null && selectedNode.getDescriptor() instanceof StackFrameDescriptorImpl) {
            DebuggerTreeNodeImpl parent = selectedNode.getParent();
            if (parent != null) {
                return ((ThreadDescriptorImpl) parent.getDescriptor()).isAtBreakpoint();
            }
        }
        DebuggerContextImpl debuggerContext = DebuggerAction.getDebuggerContext(e.getDataContext());
        SuspendContextImpl suspendContext = debuggerContext.getSuspendContext();
        return suspendContext != null && debuggerContext.getThreadProxy() == suspendContext.getThread();
    }

    public void update(AnActionEvent e) {
        boolean enable = false;
        StackFrameProxyImpl stackFrameProxy = getStackFrameProxy(e);

        if (stackFrameProxy != null && isAtBreakpoint(e)) {
            VirtualMachineProxyImpl virtualMachineProxy = stackFrameProxy.getVirtualMachine();
            enable = virtualMachineProxy.canPopFrames();
        }

        if (ActionPlaces.MAIN_MENU.equals(e.getPlace()) || ActionPlaces.DEBUGGER_TOOLBAR.equals(e.getPlace())) {
            e.getPresentation().setEnabled(enable);
        } else {
            e.getPresentation().setVisible(enable);
        }
    }
}