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

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Here is the source code for com.intellij.debugger.actions.EvaluateActionHandler.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.
 */

/*
 * Class EvaluateAction
 * @author Jeka
 */
package com.intellij.debugger.actions;

import com.intellij.debugger.DebuggerInvocationUtil;
import com.intellij.debugger.engine.evaluation.CodeFragmentKind;
import com.intellij.debugger.engine.evaluation.EvaluateException;
import com.intellij.debugger.engine.evaluation.TextWithImports;
import com.intellij.debugger.engine.evaluation.TextWithImportsImpl;
import com.intellij.debugger.engine.events.DebuggerContextCommandImpl;
import com.intellij.debugger.impl.DebuggerContextImpl;
import com.intellij.debugger.impl.DebuggerSession;
import com.intellij.debugger.impl.DebuggerUtilsEx;
import com.intellij.debugger.settings.DebuggerSettings;
import com.intellij.debugger.ui.ExpressionEvaluationDialog;
import com.intellij.debugger.ui.StatementEvaluationDialog;
import com.intellij.debugger.ui.impl.watch.DebuggerTreeNodeExpression;
import com.intellij.debugger.ui.impl.watch.DebuggerTreeNodeImpl;
import com.intellij.debugger.ui.impl.watch.ValueDescriptorImpl;
import com.intellij.debugger.ui.impl.watch.WatchItemDescriptor;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.actionSystem.DataKeys;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.DialogWrapper;
import com.intellij.openapi.ui.Messages;
import com.intellij.xdebugger.impl.actions.DebuggerActionHandler;
import org.jetbrains.annotations.NotNull;

public class EvaluateActionHandler extends DebuggerActionHandler {
    public boolean isEnabled(@NotNull final Project project, final AnActionEvent event) {
        DebuggerContextImpl context = DebuggerAction.getDebuggerContext(event.getDataContext());

        if (context != null) {
            DebuggerSession debuggerSession = context.getDebuggerSession();
            return debuggerSession != null && debuggerSession.isPaused();
        }

        return false;
    }

    public void perform(@NotNull final Project project, final AnActionEvent event) {
        final DataContext dataContext = event.getDataContext();
        final DebuggerContextImpl context = DebuggerAction.getDebuggerContext(dataContext);

        if (context == null) {
            return;
        }

        final Editor editor = event.getData(DataKeys.EDITOR);

        TextWithImports editorText = DebuggerUtilsEx.getEditorText(editor);
        if (editorText == null) {
            final DebuggerTreeNodeImpl selectedNode = DebuggerAction.getSelectedNode(dataContext);
            final String actionName = event.getPresentation().getText();

            if (selectedNode != null && selectedNode.getDescriptor() instanceof ValueDescriptorImpl) {
                context.getDebugProcess().getManagerThread().schedule(new DebuggerContextCommandImpl(context) {
                    public void threadAction() {
                        try {
                            final TextWithImports evaluationText = DebuggerTreeNodeExpression
                                    .createEvaluationText(selectedNode, context);
                            DebuggerInvocationUtil.swingInvokeLater(project, new Runnable() {
                                public void run() {
                                    showEvaluationDialog(project, evaluationText);
                                }
                            });
                        } catch (final EvaluateException e1) {
                            DebuggerInvocationUtil.swingInvokeLater(project, new Runnable() {
                                public void run() {
                                    Messages.showErrorDialog(project, e1.getMessage(), actionName);
                                }
                            });
                        }
                    }

                    protected void commandCancelled() {
                        DebuggerInvocationUtil.swingInvokeLater(project, new Runnable() {
                            public void run() {
                                if (selectedNode.getDescriptor() instanceof WatchItemDescriptor) {
                                    try {
                                        TextWithImports editorText = DebuggerTreeNodeExpression
                                                .createEvaluationText(selectedNode, context);
                                        showEvaluationDialog(project, editorText);
                                    } catch (EvaluateException e1) {
                                        Messages.showErrorDialog(project, e1.getMessage(), actionName);
                                    }
                                }
                            }
                        });
                    }
                });
                return;
            }
        }

        showEvaluationDialog(project, editorText);
    }

    public static void showEvaluationDialog(Project project, TextWithImports defaultExpression, String dialogType) {
        if (defaultExpression == null) {
            defaultExpression = new TextWithImportsImpl(CodeFragmentKind.EXPRESSION, "");
        }

        CodeFragmentKind kind = DebuggerSettings.EVALUATE_FRAGMENT.equals(dialogType) ? CodeFragmentKind.CODE_BLOCK
                : CodeFragmentKind.EXPRESSION;

        DebuggerSettings.getInstance().EVALUATION_DIALOG_TYPE = dialogType;
        TextWithImportsImpl text = new TextWithImportsImpl(kind, defaultExpression.getText(),
                defaultExpression.getImports(), defaultExpression.getFileType());

        final DialogWrapper dialog;
        if (DebuggerSettings.EVALUATE_FRAGMENT.equals(dialogType)) {
            dialog = new StatementEvaluationDialog(project, text);
        } else {
            dialog = new ExpressionEvaluationDialog(project, text);
        }

        dialog.show();
    }

    public static void showEvaluationDialog(Project project, TextWithImports text) {
        showEvaluationDialog(project, text, DebuggerSettings.getInstance().EVALUATION_DIALOG_TYPE);
    }
}