TypoRenameToQuickFix.java

/*
 * Copyright 2000-2014 JetBrains s.r.o.
 * Copyright (c) 2015-2015 Vladimir Schneider <vladimir.schneider@gmail.com>
 *
 * 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.vladsch.idea.multimarkdown.spellchecking;

import com.intellij.codeInspection.ProblemDescriptor;
import com.intellij.ide.DataManager;
import com.intellij.injected.editor.EditorWindow;
import com.intellij.openapi.actionSystem.*;
import com.intellij.openapi.actionSystem.impl.SimpleDataContext;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.impl.EditorComponentImpl;
import com.intellij.openapi.extensions.Extensions;
import com.intellij.openapi.fileEditor.impl.text.TextEditorPsiDataProvider;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.impl.source.tree.injected.InjectedLanguageUtil;
import com.intellij.refactoring.actions.RenameElementAction;
import com.intellij.refactoring.rename.NameSuggestionProvider;
import com.intellij.refactoring.rename.RenameHandlerRegistry;
import com.intellij.spellchecker.quickfixes.RenameTo;
import com.intellij.util.containers.HashMap;
import com.vladsch.idea.multimarkdown.language.ElementNameSuggestionProvider;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import javax.swing.*;
import java.awt.*;

public class TypoRenameToQuickFix extends RenameTo {

    public TypoRenameToQuickFix(String wordWithTypo) {
        super(wordWithTypo);
    }

    //@NotNull
    //public String getName() {
    //    return SpellCheckerBundle.message("rename.to");
    //}
    //
    //@NotNull
    //public String getFamilyName() {
    //    return SpellCheckerBundle.message("rename.to");
    //}

    @Nullable
    private static ElementNameSuggestionProvider findProvider() {
        Object[] extensions = Extensions.getExtensions(NameSuggestionProvider.EP_NAME);

        for (Object extension : extensions) {
            if (extension instanceof ElementNameSuggestionProvider) {
                return (ElementNameSuggestionProvider) extension;
            }
        }
        return null;
    }

    @NotNull
    public Anchor getPopupActionAnchor() {
        return Anchor.FIRST;
    }

    @SuppressWarnings({"SSBasedInspection"})
    public void applyFix(@NotNull final Project project, @NotNull final ProblemDescriptor descriptor) {
        Runnable fix = new Runnable() {
            public void run() {
                ElementNameSuggestionProvider provider = findProvider();
                if (provider != null) {
                    provider.setActive(true);
                }

                Editor editor = getEditorFromFocus();
                HashMap<String, Object> map = new HashMap<String, Object>();
                PsiElement psiElement = descriptor.getPsiElement();
                if (psiElement == null) return;
                PsiFile containingFile = psiElement.getContainingFile();
                if (editor == null) {
                    editor = InjectedLanguageUtil.openEditorFor(containingFile, project);
                }

                if (editor == null) return;

                if (editor instanceof EditorWindow) {
                    map.put(CommonDataKeys.EDITOR.getName(), editor);
                    map.put(CommonDataKeys.PSI_ELEMENT.getName(), psiElement);
                } else if (ApplicationManager.getApplication().isUnitTestMode()) { // TextEditorComponent / FiledEditorManagerImpl give away the data in real life
                    map.put(
                            CommonDataKeys.PSI_ELEMENT.getName(),
                            new TextEditorPsiDataProvider().getData(CommonDataKeys.PSI_ELEMENT.getName(), editor, editor.getCaretModel().getCurrentCaret())
                    );
                }

                final Boolean selectAll = editor.getUserData(RenameHandlerRegistry.SELECT_ALL);
                try {
                    editor.putUserData(RenameHandlerRegistry.SELECT_ALL, true);
                    DataContext dataContext = SimpleDataContext.getSimpleContext(map, DataManager.getInstance().getDataContext(editor.getComponent()));
                    AnAction action = new RenameElementAction();
                    AnActionEvent event = new AnActionEvent(null, dataContext, "", action.getTemplatePresentation(), ActionManager.getInstance(), 0);
                    action.actionPerformed(event);
                    if (provider != null) {
                        provider.setActive(false);
                    }
                } finally {
                    editor.putUserData(RenameHandlerRegistry.SELECT_ALL, selectAll);
                }
            }
        };

        if (ApplicationManager.getApplication().isUnitTestMode()) fix.run();
        else SwingUtilities.invokeLater(fix); // TODO [shkate] this is hard to test!
    }

    @Nullable
    private static Editor getEditorFromFocus() {
        final Component c = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
        if (c instanceof EditorComponentImpl) {
            return ((EditorComponentImpl) c).getEditor();
        }
        return null;
    }
}