com.intellij.debugger.ui.DebuggerStatementEditor.java Source code

Introduction

Here is the source code for com.intellij.debugger.ui.DebuggerStatementEditor.java

Source

/*
 * 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.debugger.ui;

import com.intellij.codeInsight.daemon.DaemonCodeAnalyzer;
import com.intellij.debugger.engine.evaluation.CodeFragmentFactory;
import com.intellij.debugger.engine.evaluation.CodeFragmentKind;
import com.intellij.debugger.engine.evaluation.TextWithImports;
import com.intellij.debugger.engine.evaluation.TextWithImportsImpl;
import com.intellij.openapi.actionSystem.*;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.EditorFactory;
import com.intellij.openapi.editor.ex.EditorEx;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiElement;
import com.intellij.ui.EditorTextField;
import org.jetbrains.annotations.NonNls;

import javax.swing.*;
import java.awt.*;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;

/**
 * @author lex
 */
public class DebuggerStatementEditor extends DebuggerEditorImpl {
    private static final Logger LOG = Logger.getInstance("#com.intellij.debugger.ui.DebuggerStatementEditor");

    private final EditorTextField myEditor;

    private int myRecentIdx;

    public DebuggerStatementEditor(Project project, PsiElement context, @NonNls String recentsId,
            final CodeFragmentFactory factory) {
        super(project, context, recentsId, factory);
        myRecentIdx = getRecentItemsCount();
        final Document document = EditorFactory.getInstance().createDocument("");
        myEditor = new EditorTextField(document, project, factory.getFileType(), false, false) {
            protected EditorEx createEditor() {
                EditorEx editor = super.createEditor();
                editor.setVerticalScrollbarVisible(true);
                editor.setHorizontalScrollbarVisible(true);
                return editor;
            }
        };

        setLayout(new BorderLayout());
        add(addChooseFactoryLabel(myEditor, true));

        DefaultActionGroup actionGroup = new DefaultActionGroup(null, false);
        actionGroup.add(new ItemAction(IdeActions.ACTION_PREVIOUS_OCCURENCE, this) {
            public void actionPerformed(AnActionEvent e) {
                LOG.assertTrue(myRecentIdx >= 0);
                // since recents are stored in a stack, previous item is at currentIndex + 1
                myRecentIdx += 1;
                updateTextFromRecents();
            }

            public void update(AnActionEvent e) {
                e.getPresentation().setEnabled(myRecentIdx < getRecentItemsCount());
            }
        });
        actionGroup.add(new ItemAction(IdeActions.ACTION_NEXT_OCCURENCE, this) {
            public void actionPerformed(AnActionEvent e) {
                if (LOG.isDebugEnabled()) {
                    LOG.assertTrue(myRecentIdx < getRecentItemsCount());
                }
                // since recents are stored in a stack, next item is at currentIndex - 1
                myRecentIdx -= 1;
                updateTextFromRecents();
            }

            public void update(AnActionEvent e) {
                e.getPresentation().setEnabled(myRecentIdx > 0);
            }
        });

        add(ActionManager.getInstance().createActionToolbar(ActionPlaces.COMBO_PAGER, actionGroup, false)
                .getComponent(), BorderLayout.EAST);

        setText(new TextWithImportsImpl(CodeFragmentKind.CODE_BLOCK, ""));
    }

    private void updateTextFromRecents() {
        List<TextWithImports> recents = getRecents();
        LOG.assertTrue(myRecentIdx <= recents.size());
        setText(myRecentIdx < recents.size() ? recents.get(myRecentIdx)
                : new TextWithImportsImpl(CodeFragmentKind.EXPRESSION, ""));
    }

    private List<TextWithImports> getRecents() {
        final LinkedList<TextWithImports> recents = DebuggerRecents.getInstance(getProject())
                .getRecents(getRecentsId());
        final ArrayList<TextWithImports> reversed = new ArrayList<TextWithImports>(recents.size());
        for (final ListIterator<TextWithImports> it = recents.listIterator(recents.size()); it.hasPrevious();) {
            reversed.add(it.previous());
        }
        return reversed;
    }

    private int getRecentItemsCount() {
        return DebuggerRecents.getInstance(getProject()).getRecents(getRecentsId()).size();
    }

    public JComponent getPreferredFocusedComponent() {
        final Editor editor = myEditor.getEditor();
        return editor != null ? editor.getContentComponent() : myEditor;
    }

    public TextWithImports getText() {
        return createItem(myEditor.getDocument(), getProject());
    }

    @Override
    protected void doSetText(TextWithImports text) {
        restoreFactory(text);
        myEditor.setNewDocumentAndFileType(getCurrentFactory().getFileType(), createDocument(text));
    }

    @Override
    protected void updateEditorUi() {
        final Editor editor = myEditor.getEditor();
        if (editor != null) {
            DaemonCodeAnalyzer.getInstance(getProject()).updateVisibleHighlighters(editor);
        }
    }

    public TextWithImports createText(String text, String importsString) {
        return new TextWithImportsImpl(CodeFragmentKind.CODE_BLOCK, text, importsString,
                getCurrentFactory().getFileType());
    }

    private static abstract class ItemAction extends AnAction {
        public ItemAction(String sourceActionName, JComponent component) {
            copyFrom(ActionManager.getInstance().getAction(sourceActionName));
            registerCustomShortcutSet(getShortcutSet(), component);
        }
    }

}