Java tutorial
/* * Copyright 2015 Igor Maznitsa. * * 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.igormaznitsa.ideamindmap.utils; import com.igormaznitsa.ideamindmap.editor.MindMapDocumentEditor; import com.igormaznitsa.ideamindmap.filetype.MindMapFileType; import com.igormaznitsa.ideamindmap.lang.MMDFile; import com.igormaznitsa.ideamindmap.lang.psi.PsiExtraFile; import com.igormaznitsa.ideamindmap.swing.ColorChooserButton; import com.igormaznitsa.ideamindmap.swing.FileEditPanel; import com.igormaznitsa.ideamindmap.swing.PlainTextEditor; import com.igormaznitsa.ideamindmap.swing.UriEditPanel; import com.igormaznitsa.meta.common.utils.GetUtils; import com.igormaznitsa.mindmap.model.MMapURI; import com.igormaznitsa.mindmap.model.Topic; import com.igormaznitsa.mindmap.model.logger.Logger; import com.igormaznitsa.mindmap.model.logger.LoggerFactory; import com.igormaznitsa.mindmap.swing.panel.DialogProvider; import com.igormaznitsa.mindmap.swing.panel.HasPreferredFocusComponent; import com.intellij.CommonBundle; import com.intellij.ide.BrowserUtil; import com.intellij.openapi.application.ApplicationManager; import com.intellij.openapi.command.CommandProcessor; import com.intellij.openapi.module.Module; import com.intellij.openapi.module.ModuleUtil; import com.intellij.openapi.module.ModuleUtilCore; import com.intellij.openapi.project.Project; import com.intellij.openapi.roots.ProjectRootManager; import com.intellij.openapi.ui.DialogWrapper; import com.intellij.openapi.ui.MessageType; import com.intellij.openapi.ui.Messages; import com.intellij.openapi.ui.popup.Balloon; import com.intellij.openapi.ui.popup.BalloonBuilder; import com.intellij.openapi.ui.popup.JBPopupFactory; import com.intellij.openapi.vfs.VfsUtil; import com.intellij.openapi.vfs.VfsUtilCore; import com.intellij.openapi.vfs.VirtualFile; import com.intellij.openapi.wm.WindowManager; import com.intellij.psi.PsiElement; import com.intellij.psi.PsiManager; import com.intellij.psi.search.FileTypeIndex; import com.intellij.psi.search.GlobalSearchScope; import com.intellij.psi.util.PsiTreeUtil; import com.intellij.ui.awt.RelativePoint; import com.intellij.util.indexing.FileBasedIndex; import com.intellij.util.ui.UIUtil; import org.apache.commons.lang.StringEscapeUtils; import javax.annotation.Nonnull; import javax.annotation.Nullable; import javax.swing.Action; import javax.swing.JComponent; import javax.swing.JFileChooser; import javax.swing.SwingUtilities; import javax.swing.filechooser.FileFilter; import java.awt.Color; import java.awt.Component; import java.awt.Desktop; import java.awt.Dimension; import java.awt.Point; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.io.File; import java.io.IOException; import java.net.URI; import java.net.URISyntaxException; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.List; import java.util.ResourceBundle; import java.util.concurrent.atomic.AtomicReference; public enum IdeaUtils { ; private static final Logger LOGGER = LoggerFactory.getLogger(IdeaUtils.class); private static final ResourceBundle BUNDLE = java.util.ResourceBundle.getBundle("/i18n/Bundle"); public static final MMapURI EMPTY_URI; public static final String PROJECT_KNOWLEDGE_FOLDER_NAME = ".projectKnowledge"; static { try { EMPTY_URI = new MMapURI("http://igormaznitsa.com/specialuri#empty"); //NOI18N } catch (URISyntaxException ex) { throw new Error("Unexpected exception", ex); //NOI18N } } @Nullable public static VirtualFile findPotentialRootFolderForModule(@Nullable final Module module) { VirtualFile moduleRoot = module == null ? null : module.getModuleFile(); if (moduleRoot != null) { moduleRoot = moduleRoot.isDirectory() ? moduleRoot : moduleRoot.getParent(); if (moduleRoot.getName().equals(".idea")) { moduleRoot = moduleRoot.getParent(); } } return moduleRoot; } public static boolean isMMDFile(@Nullable final VirtualFile file) { return !(file == null || file.isDirectory()) && file.getFileType() == MindMapFileType.INSTANCE; } @Nullable public static VirtualFile findKnowledgeFolderForModule(@Nullable final Module module, final boolean createIfMissing) { final VirtualFile rootFolder = IdeaUtils.findPotentialRootFolderForModule(module); final AtomicReference<VirtualFile> result = new AtomicReference<VirtualFile>(); if (rootFolder != null) { result.set(rootFolder.findChild(PROJECT_KNOWLEDGE_FOLDER_NAME)); if (result.get() == null || !result.get().isDirectory()) { if (createIfMissing) { CommandProcessor.getInstance().executeCommand(module.getProject(), new Runnable() { @Override public void run() { ApplicationManager.getApplication().runWriteAction(new Runnable() { @Override public void run() { try { result.set(VfsUtil.createDirectoryIfMissing(rootFolder, PROJECT_KNOWLEDGE_FOLDER_NAME)); LOGGER.info("Created knowledge folder for " + module); } catch (IOException ex) { LOGGER.error("Can't create knowledge folder for " + module, ex); } } }); } }, null, null); } else { result.set(null); } } } return result.get(); } @Nullable public static Module findModuleForFile(@Nullable final Project project, @Nullable final VirtualFile file) { return project == null || file == null ? null : ModuleUtil.findModuleForFile(file, project); } public static boolean browseURI(final URI uri, final boolean useInsideBrowser) { try { BrowserUtil.browse(uri); } catch (Exception ex) { ex.printStackTrace(); return false; } return true; } public static void openInSystemViewer(@Nonnull final DialogProvider dialogProvider, @Nullable final VirtualFile theFile) { final File file = vfile2iofile(theFile); if (file == null) { LOGGER.error("Can't find file to open, null provided"); dialogProvider.msgError("Can't find file to open"); } else { final Runnable startEdit = new Runnable() { @Override public void run() { boolean ok = false; if (Desktop.isDesktopSupported()) { final Desktop dsk = Desktop.getDesktop(); if (dsk.isSupported(Desktop.Action.OPEN)) { try { dsk.open(file); ok = true; } catch (Throwable ex) { LOGGER.error("Can't open file in system viewer : " + file, ex);//NOI18N } } } if (!ok) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { dialogProvider.msgError("Can't open file in system viewer! See the log!");//NOI18N Toolkit.getDefaultToolkit().beep(); } }); } } }; final Thread thr = new Thread(startEdit, " MMDStartFileEdit");//NOI18N thr.setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() { @Override public void uncaughtException(final Thread t, final Throwable e) { LOGGER.error("Detected uncaught exception in openInSystemViewer() for file " + file, e); } }); thr.setDaemon(true); thr.start(); } } public static boolean isDarkTheme() { return UIUtil.isUnderDarcula(); } private static class DialogComponent extends DialogWrapper { private final JComponent component; private final JComponent prefferedComponent; public DialogComponent(final Project project, final String title, final JComponent component, final JComponent prefferedComponent, final boolean defaultButtonEnabled) { super(project, false, IdeModalityType.PROJECT); this.component = component; this.prefferedComponent = prefferedComponent == null ? component : prefferedComponent; init(); setTitle(title); if (!defaultButtonEnabled) getRootPane().setDefaultButton(null); } @Nullable @Override public JComponent getPreferredFocusedComponent() { return this.prefferedComponent == null ? this.component : this.prefferedComponent; } @Nullable @Override protected JComponent createCenterPanel() { return this.component; } } public static File chooseFile(final Component parent, final boolean filesOnly, final String title, final File selectedFile, final FileFilter filter) { final JFileChooser chooser = new JFileChooser(selectedFile); chooser.setApproveButtonText("Select"); if (filter != null) chooser.setFileFilter(filter); chooser.setDialogTitle(title); chooser.setMultiSelectionEnabled(false); if (filesOnly) chooser.setFileSelectionMode(JFileChooser.FILES_ONLY); else chooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES); if (chooser.showOpenDialog(parent) == JFileChooser.APPROVE_OPTION) { return chooser.getSelectedFile(); } else { return null; } } public static String editText(final Project project, final String title, final String text) { final PlainTextEditor editor = new PlainTextEditor(project, text); editor.setPreferredSize(new Dimension(550, 450)); final DialogComponent dialog = new DialogComponent(project, title, editor, editor.getEditor(), false); return dialog.showAndGet() ? editor.getEditor().getText() : null; } public static boolean plainMessageOkCancel(final Project project, final String title, final JComponent centerComponent) { final DialogComponent dialog = new DialogComponent(project, title, centerComponent, centerComponent instanceof HasPreferredFocusComponent ? ((HasPreferredFocusComponent) centerComponent).getComponentPreferredForFocus() : centerComponent, true); return dialog.showAndGet(); } public static void plainMessageClose(final Project project, final String title, final JComponent centerComponent) { final DialogComponent dialog = new DialogComponent(project, title, centerComponent, centerComponent instanceof HasPreferredFocusComponent ? ((HasPreferredFocusComponent) centerComponent).getComponentPreferredForFocus() : centerComponent, true) { @Nonnull @Override protected Action[] createActions() { return new Action[] { new DialogWrapperAction(CommonBundle.getCloseButtonText()) { @Override protected void doAction(ActionEvent e) { doCancelAction(); } } }; } }; dialog.show(); } @Nullable public static File vfile2iofile(@Nullable final VirtualFile vfFile) { return vfFile == null ? null : VfsUtilCore.virtualToIoFile(vfFile); } public static Color extractCommonColorForColorChooserButton(final String colorAttribute, final Topic[] topics) { Color result = null; for (final Topic t : topics) { final Color color = html2color(t.getAttribute(colorAttribute), false); if (result == null) { result = color; } else { if (!result.equals(color)) { return ColorChooserButton.DIFF_COLORS; } } } return result; } public static Color html2color(final String str, final boolean hasAlpha) { Color result = null; if (str != null && !str.isEmpty() && str.charAt(0) == '#') { try { result = new Color(Integer.parseInt(str.substring(1), 16), hasAlpha); } catch (NumberFormatException ex) { LOGGER.warn(String.format("Can't convert %s to color", str)); } } return result; } public static FileEditPanel.DataContainer editFilePath(final MindMapDocumentEditor editor, final String title, final File projectFolder, final FileEditPanel.DataContainer data) { final FileEditPanel filePathEditor = new FileEditPanel(editor.getDialogProvider(), projectFolder, data); filePathEditor.doLayout(); filePathEditor.setPreferredSize(new Dimension(450, filePathEditor.getPreferredSize().height)); if (plainMessageOkCancel(editor.getProject(), title, filePathEditor)) { final FileEditPanel.DataContainer result = filePathEditor.getData(); if (result.isValid()) { return result; } else { Messages.showErrorDialog(editor.getMindMapPanel(), String.format(BUNDLE.getString("MMDGraphEditor.editFileLinkForTopic.errorCantFindFile"), result.getPath()), "Error"); return null; } } else { return null; } } public static MMapURI editURI(final MindMapDocumentEditor editor, final String title, final MMapURI uri) { final UriEditPanel uriEditor = new UriEditPanel(uri == null ? null : uri.asString(false, false)); uriEditor.doLayout(); uriEditor.setPreferredSize(new Dimension(450, uriEditor.getPreferredSize().height)); if (plainMessageOkCancel(editor.getProject(), title, uriEditor)) { final String text = uriEditor.getText(); if (text.isEmpty()) { return EMPTY_URI; } try { if (!new URI(text).isAbsolute()) throw new URISyntaxException(text, "URI is not absolute one"); return new MMapURI(text.trim()); } catch (URISyntaxException ex) { editor.getDialogProvider() .msgError(String.format(BUNDLE.getString("NbUtils.errMsgIllegalURI"), text)); return null; } } else { return null; } } public static boolean isInProjectContentRoot(@Nonnull final Project project, @Nonnull final VirtualFile file) { for (final VirtualFile root : ProjectRootManager.getInstance(project).getContentRoots()) { if (VfsUtil.isAncestor(root, file, false)) { return true; } } return false; } public static void showPopup(@Nonnull final String text, @Nonnull final MessageType type) { SwingUtils.safeSwing(new Runnable() { @Override public void run() { final JBPopupFactory factory = JBPopupFactory.getInstance(); final BalloonBuilder builder = factory .createHtmlTextBalloonBuilder(StringEscapeUtils.escapeHtml(text), type, null); final Balloon balloon = builder.createBalloon(); balloon.setAnimationEnabled(true); final Component frame = WindowManager.getInstance().findVisibleFrame(); if (frame != null) balloon.show(new RelativePoint(frame, new Point(frame.getWidth(), frame.getHeight())), Balloon.Position.below); } }); } @Nullable public static File findProjectFolder(@Nullable final Project project) { if (project == null) return null; return IdeaUtils.vfile2iofile(project.getBaseDir()); } @Nullable public static File findProjectFolder(@Nullable final PsiElement element) { if (element == null) return null; return findProjectFolder(element.getProject()); } public static List<PsiExtraFile> findPsiFileLinksForProjectScope(final Project project) { List<PsiExtraFile> result = new ArrayList<PsiExtraFile>(); Collection<VirtualFile> virtualFiles = FileBasedIndex.getInstance().getContainingFiles(FileTypeIndex.NAME, MindMapFileType.INSTANCE, GlobalSearchScope.allScope(project)); for (VirtualFile virtualFile : virtualFiles) { final MMDFile simpleFile = (MMDFile) PsiManager.getInstance(project).findFile(virtualFile); if (simpleFile != null) { final PsiExtraFile[] fileLinks = PsiTreeUtil.getChildrenOfType(simpleFile, PsiExtraFile.class); if (fileLinks != null) { Collections.addAll(result, fileLinks); } } } return result; } @Nonnull public static GlobalSearchScope moduleScope(@Nonnull Project project, @Nullable Module module) { return module != null ? moduleScope(module) : GlobalSearchScope.projectScope(project); } @Nonnull public static GlobalSearchScope moduleScope(@Nonnull PsiElement element) { return moduleScope(element.getProject(), ModuleUtilCore.findModuleForPsiElement(element)); } @Nonnull public static GlobalSearchScope moduleScope(@Nonnull Module module) { return GlobalSearchScope.moduleWithDependenciesAndLibrariesScope(module) .uniteWith(module.getModuleContentWithDependenciesScope()); } }