CreateUserTemplateAction.java

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2017 hsz Jakub Chrzanowski <jakub@hsz.mobi>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package mobi.hsz.idea.gitignore.actions;

import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.EditorFactory;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.PsiFile;
import mobi.hsz.idea.gitignore.IgnoreBundle;
import mobi.hsz.idea.gitignore.psi.IgnoreFile;
import mobi.hsz.idea.gitignore.ui.template.UserTemplateDialog;
import mobi.hsz.idea.gitignore.util.CommonDataKeys;
import mobi.hsz.idea.gitignore.util.Icons;

/**
 * Action that creates new user template with predefined content - i.e. from currently opened file.
 *
 * @author Jakub Chrzanowski <jakub@hsz.mobi>
 * @since 1.5
 */
public class CreateUserTemplateAction extends AnAction {
    public CreateUserTemplateAction() {
        super(IgnoreBundle.message("action.createUserTemplate"),
                IgnoreBundle.message("action.createUserTemplate.description"), Icons.IGNORE);
    }

    /**
     * Handles an action of adding new template.
     * Ignores action if selected file is not a {@link IgnoreFile} instance, otherwise shows GeneratorDialog.
     *
     * @param e action event
     */
    @Override
    public void actionPerformed(AnActionEvent e) {
        final Project project = e.getData(CommonDataKeys.PROJECT);
        final PsiFile file = e.getData(CommonDataKeys.PSI_FILE);

        if (project == null || file == null || !(file instanceof IgnoreFile)) {
            return;
        }

        String content = file.getText();
        Document document = file.getViewProvider().getDocument();
        if (document != null) {
            Editor[] editors = EditorFactory.getInstance().getEditors(document);
            if (editors.length > 0) {
                String selectedText = editors[0].getSelectionModel().getSelectedText();
                if (!StringUtil.isEmpty(selectedText)) {
                    content = selectedText;
                }
            }
        }

        new UserTemplateDialog(project, content).show();
    }

    /**
     * Updates visibility of the action presentation in various actions list.
     * Visible only for {@link IgnoreFile} context.
     *
     * @param e action event
     */
    @Override
    public void update(AnActionEvent e) {
        final PsiFile file = e.getData(CommonDataKeys.PSI_FILE);

        if (file == null || !(file instanceof IgnoreFile)) {
            e.getPresentation().setVisible(false);
            return;
        }
        getTemplatePresentation().setIcon(file.getFileType().getIcon());
    }
}