Java tutorial
/* * Copyright 2000-2014 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.ide.actions; import com.intellij.CommonBundle; import com.intellij.execution.ExecutionException; import com.intellij.execution.configurations.GeneralCommandLine; import com.intellij.execution.util.ExecUtil; import com.intellij.ide.DataManager; import com.intellij.ide.IdeBundle; import com.intellij.notification.Notification; import com.intellij.notification.NotificationListener; import com.intellij.openapi.actionSystem.AnAction; import com.intellij.openapi.actionSystem.AnActionEvent; import com.intellij.openapi.actionSystem.CommonDataKeys; import com.intellij.openapi.actionSystem.DataContext; import com.intellij.openapi.application.ApplicationManager; import com.intellij.openapi.diagnostic.Logger; import com.intellij.openapi.project.Project; import com.intellij.openapi.ui.DialogWrapper; import com.intellij.openapi.ui.Messages; import com.intellij.openapi.ui.popup.JBPopupFactory; import com.intellij.openapi.ui.popup.ListPopup; import com.intellij.openapi.ui.popup.PopupStep; import com.intellij.openapi.ui.popup.util.BaseListPopupStep; import com.intellij.openapi.util.AtomicNotNullLazyValue; import com.intellij.openapi.util.NotNullLazyValue; import com.intellij.openapi.util.SystemInfo; import com.intellij.openapi.util.io.FileUtil; import com.intellij.openapi.util.text.StringUtil; import com.intellij.openapi.vfs.ArchiveFileSystem; import com.intellij.openapi.vfs.VirtualFile; import com.intellij.openapi.vfs.VirtualFileSystem; import com.intellij.openapi.vfs.util.ArchiveVfsUtil; import com.intellij.ui.awt.RelativePoint; import com.intellij.util.Consumer; import com.intellij.util.ui.EmptyIcon; import org.jetbrains.annotations.NotNull; import org.jetbrains.annotations.Nullable; import javax.swing.*; import javax.swing.event.HyperlinkEvent; import javax.swing.filechooser.FileSystemView; import java.awt.*; import java.awt.event.MouseEvent; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.net.URL; import java.util.ArrayList; import java.util.regex.Matcher; import java.util.regex.Pattern; public class ShowFilePathAction extends AnAction { private static final Logger LOG = Logger.getInstance("#com.intellij.ide.actions.ShowFilePathAction"); public static final NotificationListener FILE_SELECTING_LISTENER = new NotificationListener.Adapter() { @Override protected void hyperlinkActivated(@NotNull Notification notification, @NotNull HyperlinkEvent e) { URL url = e.getURL(); if (url != null) openFile(new File(url.getPath())); notification.expire(); } }; private static NotNullLazyValue<Boolean> canUseNautilus = new NotNullLazyValue<Boolean>() { @NotNull @Override protected Boolean compute() { if (!SystemInfo.isUnix || !SystemInfo.hasXdgMime() || !new File("/usr/bin/nautilus").canExecute()) { return false; } String appName = ExecUtil.execAndReadLine("xdg-mime", "query", "default", "inode/directory"); if (appName == null || !appName.matches("nautilus.*\\.desktop")) return false; String version = ExecUtil.execAndReadLine("nautilus", "--version"); if (version == null) return false; Matcher m = Pattern.compile("GNOME nautilus ([0-9.]+)").matcher(version); return m.find() && StringUtil.compareVersionNumbers(m.group(1), "3") >= 0; } }; private static final NotNullLazyValue<String> fileManagerName = new AtomicNotNullLazyValue<String>() { @NotNull @Override protected String compute() { if (SystemInfo.isMac) return "Finder"; if (SystemInfo.isWindows) return "Explorer"; if (SystemInfo.isUnix && SystemInfo.hasXdgMime()) { String name = getUnixFileManagerName(); if (name != null) return name; } return "File Manager"; } }; @Nullable private static String getUnixFileManagerName() { String appName = ExecUtil.execAndReadLine("xdg-mime", "query", "default", "inode/directory"); if (appName == null || !appName.matches(".+\\.desktop")) return null; String dirs = System.getenv("XDG_DATA_DIRS"); if (dirs == null) return null; try { for (String dir : dirs.split(File.pathSeparator)) { File appFile = new File(dir, "applications/" + appName); if (appFile.exists()) { BufferedReader reader = new BufferedReader(new FileReader(appFile)); try { String line; while ((line = reader.readLine()) != null) { if (line.startsWith("Name=")) { return line.substring(5); } } } finally { reader.close(); } } } } catch (IOException e) { LOG.info("Cannot read desktop file", e); } return null; } @Override public void update(AnActionEvent e) { if (SystemInfo.isMac || !isSupported()) { e.getPresentation().setVisible(false); return; } e.getPresentation().setEnabled(getFile(e) != null); } @Override public void actionPerformed(AnActionEvent e) { show(getFile(e), new ShowAction() { @Override public void show(final ListPopup popup) { DataManager.getInstance().getDataContextFromFocus().doWhenDone(new Consumer<DataContext>() { @Override public void consume(DataContext context) { popup.showInBestPositionFor(context); } }); } }); } public static void show(final VirtualFile file, final MouseEvent e) { show(file, new ShowAction() { @Override public void show(final ListPopup popup) { if (e.getComponent().isShowing()) { popup.show(new RelativePoint(e)); } } }); } public static void show(final VirtualFile file, final ShowAction show) { if (!isSupported()) return; final ArrayList<VirtualFile> files = new ArrayList<VirtualFile>(); final ArrayList<String> fileUrls = new ArrayList<String>(); VirtualFile eachParent = file; while (eachParent != null) { final int index = files.size() == 0 ? 0 : files.size(); files.add(index, eachParent); fileUrls.add(index, getPresentableUrl(eachParent)); if (eachParent.getParent() == null && eachParent.getFileSystem() instanceof ArchiveFileSystem) { eachParent = ArchiveVfsUtil.getVirtualFileForArchive(eachParent); if (eachParent == null) break; } eachParent = eachParent.getParent(); } final ArrayList<Icon> icons = new ArrayList<Icon>(); ApplicationManager.getApplication().executeOnPooledThread(new Runnable() { @Override public void run() { for (String each : fileUrls) { final File ioFile = new File(each); Icon eachIcon; if (ioFile.exists()) { eachIcon = FileSystemView.getFileSystemView().getSystemIcon(ioFile); } else { eachIcon = EmptyIcon.ICON_16; } icons.add(eachIcon); } ApplicationManager.getApplication().invokeLater(new Runnable() { @Override public void run() { show.show(createPopup(files, icons)); } }); } }); } private static String getPresentableUrl(final VirtualFile eachParent) { String url = eachParent.getPresentableUrl(); if (eachParent.getParent() == null && SystemInfo.isWindows) { url += "\\"; } return url; } interface ShowAction { void show(ListPopup popup); } private static ListPopup createPopup(final ArrayList<VirtualFile> files, final ArrayList<Icon> icons) { final BaseListPopupStep<VirtualFile> step = new BaseListPopupStep<VirtualFile>("File Path", files, icons) { @NotNull @Override public String getTextFor(final VirtualFile value) { return value.getPresentableName(); } @Override public PopupStep onChosen(final VirtualFile selectedValue, final boolean finalChoice) { final File selectedFile = new File(getPresentableUrl(selectedValue)); if (selectedFile.exists()) { ApplicationManager.getApplication().executeOnPooledThread(new Runnable() { @Override public void run() { openFile(selectedFile); } }); } return FINAL_CHOICE; } }; return JBPopupFactory.getInstance().createListPopup(step); } public static boolean isSupported() { return SystemInfo.isWindows || Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.OPEN) || SystemInfo.hasXdgOpen() || canUseNautilus.getValue(); } @NotNull public static String getFileManagerName() { return fileManagerName.getValue(); } /** * Shows system file manager with given file's parent directory open and the file highlighted in it<br/> * (note that not all platforms support highlighting). * * @param file a file or directory to show and highlight in a file manager. */ public static void openFile(@NotNull File file) { if (!file.exists()) return; file = file.getAbsoluteFile(); File parent = file.getParentFile(); if (parent == null) { return; } try { doOpen(parent, file); } catch (Exception e) { LOG.warn(e); } } /** * Shows system file manager with given directory open in it. * * @param directory a directory to show in a file manager. */ @SuppressWarnings("UnusedDeclaration") public static void openDirectory(@NotNull final File directory) { if (!directory.isDirectory()) return; try { doOpen(directory, null); } catch (Exception e) { LOG.warn(e); } } private static void doOpen(@NotNull File dir, @Nullable File toSelect) throws IOException, ExecutionException { dir = new File(FileUtil.toCanonicalPath(dir.getPath())); toSelect = toSelect == null ? null : new File(FileUtil.toCanonicalPath(toSelect.getPath())); if (SystemInfo.isWindows) { String cmd; if (toSelect != null) { cmd = "explorer /select," + toSelect.getAbsolutePath(); } else { cmd = "explorer /root," + dir.getAbsolutePath(); } // no quoting/escaping is needed Runtime.getRuntime().exec(cmd); return; } if (SystemInfo.isMac) { if (toSelect != null) { final String script = String.format("tell application \"Finder\"\n" + "\treveal {\"%s\"} as POSIX file\n" + "\tactivate\n" + "end tell", toSelect.getAbsolutePath()); new GeneralCommandLine(ExecUtil.getOsascriptPath(), "-e", script).createProcess(); } else { new GeneralCommandLine("open", dir.getAbsolutePath()).createProcess(); } return; } if (canUseNautilus.getValue()) { new GeneralCommandLine("nautilus", (toSelect != null ? toSelect : dir).getAbsolutePath()) .createProcess(); return; } String path = dir.getAbsolutePath(); if (SystemInfo.hasXdgOpen()) { new GeneralCommandLine("/usr/bin/xdg-open", path).createProcess(); } else if (Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.OPEN)) { Desktop.getDesktop().open(new File(path)); } else { Messages.showErrorDialog("This action isn't supported on the current platform", "Cannot Open File"); } } @Nullable private static VirtualFile getFile(final AnActionEvent e) { return CommonDataKeys.VIRTUAL_FILE.getData(e.getDataContext()); } public static Boolean showDialog(Project project, String message, String title, File file) { final Boolean[] ref = new Boolean[1]; final DialogWrapper.DoNotAskOption option = new DialogWrapper.DoNotAskOption() { @Override public boolean isToBeShown() { return true; } @Override public void setToBeShown(boolean value, int exitCode) { if (!value) { if (exitCode == 0) { // yes ref[0] = true; } else { ref[0] = false; } } } @Override public boolean canBeHidden() { return true; } @Override public boolean shouldSaveOptionsOnCancel() { return true; } @NotNull @Override public String getDoNotShowMessage() { return CommonBundle.message("dialog.options.do.not.ask"); } }; showDialog(project, message, title, file, option); return ref[0]; } public static void showDialog(Project project, String message, String title, File file, DialogWrapper.DoNotAskOption option) { if (Messages.showOkCancelDialog(project, message, title, RevealFileAction.getActionName(), IdeBundle.message("action.close"), Messages.getInformationIcon(), option) == Messages.OK) { openFile(file); } } @Nullable public static VirtualFile findLocalFile(@Nullable VirtualFile file) { if (file == null) return null; if (file.isInLocalFileSystem()) { return file; } VirtualFileSystem fs = file.getFileSystem(); if (fs instanceof ArchiveFileSystem && file.getParent() == null) { return ((ArchiveFileSystem) fs).getLocalVirtualFileFor(file); } return null; } }