rcp/org.argeo.swt.minidesktop/src/org/argeo/minidesktop/MiniExplorer.java

   1 package org.argeo.minidesktop;
   2
   3 import java.io.IOException;
   4 import java.nio.file.DirectoryStream;
   5 import java.nio.file.Files;
   6 import java.nio.file.Path;
   7 import java.nio.file.Paths;
   8
   9 import org.eclipse.swt.SWT;
  10 import org.eclipse.swt.events.MouseAdapter;
  11 import org.eclipse.swt.events.MouseEvent;
  12 import org.eclipse.swt.events.SelectionAdapter;
  13 import org.eclipse.swt.events.SelectionEvent;
  14 import org.eclipse.swt.graphics.Point;
  15 import org.eclipse.swt.layout.FillLayout;
  16 import org.eclipse.swt.layout.GridData;
  17 import org.eclipse.swt.layout.GridLayout;
  18 import org.eclipse.swt.program.Program;
  19 import org.eclipse.swt.widgets.Composite;
  20 import org.eclipse.swt.widgets.Display;
  21 import org.eclipse.swt.widgets.Shell;
  22 import org.eclipse.swt.widgets.Table;
  23 import org.eclipse.swt.widgets.TableItem;
  24 import org.eclipse.swt.widgets.Text;
  25
  26 public class MiniExplorer {
  27         private Path path;
  28         private Text addressT;
  29         private Table browser;
  30
  31         private boolean showHidden = false;
  32
  33         public MiniExplorer(Composite parent, String url) {
  34                 this(parent);
  35                 setUrl(url);
  36         }
  37
  38         public MiniExplorer(Composite parent) {
  39                 parent.setLayout(noSpaceGridLayout(new GridLayout()));
  40
  41                 Composite toolBar = new Composite(parent, SWT.NONE);
  42                 toolBar.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
  43                 toolBar.setLayout(new FillLayout());
  44                 addressT = new Text(toolBar, SWT.SINGLE);
  45                 addressT.addSelectionListener(new SelectionAdapter() {
  46
  47                         @Override
  48                         public void widgetDefaultSelected(SelectionEvent e) {
  49                                 setUrl(addressT.getText().trim());
  50                         }
  51                 });
  52                 browser = createTable(parent, this.path);
  53
  54         }
  55
  56         public void setPath(Path url) {
  57                 this.path = url;
  58                 if (addressT != null)
  59                         addressT.setText(url.toString());
  60                 if (browser != null) {
  61                         Composite parent = browser.getParent();
  62                         browser.dispose();
  63                         browser = createTable(parent, this.path);
  64                         parent.layout(true, true);
  65                 }
  66                 pathChanged(url);
  67         }
  68
  69         protected void pathChanged(Path path) {
  70
  71         }
  72
  73         protected Table createTable(Composite parent, Path path) {
  74                 Table table = new Table(parent, SWT.BORDER);
  75                 table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  76                 table.addMouseListener(new MouseAdapter() {
  77
  78                         @Override
  79                         public void mouseDoubleClick(MouseEvent e) {
  80                                 Point pt = new Point(e.x, e.y);
  81                                 TableItem item = table.getItem(pt);
  82                                 Path path = (Path) item.getData();
  83                                 if (Files.isDirectory(path)) {
  84                                         setPath(path);
  85                                 } else {
  86                                         Program.launch(path.toString());
  87                                 }
  88                         }
  89                 });
  90
  91                 if (path != null) {
  92                         if (path.getParent() != null) {
  93                                 TableItem parentTI = new TableItem(table, SWT.NONE);
  94                                 parentTI.setText("..");
  95                                 parentTI.setData(path.getParent());
  96                         }
  97
  98                         try {
  99                                 // directories
 100                                 DirectoryStream<Path> ds = Files.newDirectoryStream(path, p -> Files.isDirectory(p) && isShown(p));
 101                                 ds.forEach(p -> {
 102                                         TableItem ti = new TableItem(table, SWT.NONE);
 103                                         ti.setText(p.getFileName().toString() + "/");
 104                                         ti.setData(p);
 105                                 });
 106                                 // files
 107                                 ds = Files.newDirectoryStream(path, p -> !Files.isDirectory(p) && isShown(p));
 108                                 ds.forEach(p -> {
 109                                         TableItem ti = new TableItem(table, SWT.NONE);
 110                                         ti.setText(p.getFileName().toString());
 111                                         ti.setData(p);
 112                                 });
 113                         } catch (IOException e1) {
 114                                 // TODO Auto-generated catch block
 115                                 e1.printStackTrace();
 116                         }
 117                 }
 118                 return table;
 119         }
 120
 121         protected boolean isShown(Path path) {
 122                 if (showHidden)
 123                         return true;
 124                 try {
 125                         return !Files.isHidden(path);
 126                 } catch (IOException e) {
 127                         throw new IllegalArgumentException("Cannot check " + path, e);
 128                 }
 129         }
 130
 131         public void setUrl(String url) {
 132                 setPath(Paths.get(url));
 133         }
 134
 135         private static GridLayout noSpaceGridLayout(GridLayout layout) {
 136                 layout.horizontalSpacing = 0;
 137                 layout.verticalSpacing = 0;
 138                 layout.marginWidth = 0;
 139                 layout.marginHeight = 0;
 140                 return layout;
 141         }
 142
 143         public static void main(String[] args) {
 144                 Display display = Display.getCurrent() == null ? new Display() : Display.getCurrent();
 145                 Shell shell = new Shell(display, SWT.SHELL_TRIM);
 146
 147                 String url = args.length > 0 ? args[0] : System.getProperty("user.home");
 148                 new MiniExplorer(shell, url) {
 149
 150                         @Override
 151                         protected void pathChanged(Path path) {
 152                                 shell.setText(path.toString());
 153                         }
 154
 155                 };
 156
 157                 shell.open();
 158                 shell.setSize(new Point(800, 480));
 159                 while (!shell.isDisposed()) {
 160                         if (!display.readAndDispatch())
 161                                 display.sleep();
 162                 }
 163         }
 164
 165 }