Put Eclipse and JCR components in subdirs in order to clarify indirect

[lgpl/argeo-commons.git] / eclipse / org.argeo.cms.swt / src / org / argeo / eclipse / ui / fs / SimpleFsTreeBrowser.java

diff --git a/eclipse/org.argeo.cms.swt/src/org/argeo/eclipse/ui/fs/SimpleFsTreeBrowser.java b/eclipse/org.argeo.cms.swt/src/org/argeo/eclipse/ui/fs/SimpleFsTreeBrowser.java
new file mode 100644 (file)
index 0000000..401e5cb
--- /dev/null
+++ b/eclipse/org.argeo.cms.swt/src/org/argeo/eclipse/ui/fs/SimpleFsTreeBrowser.java
@@ -0,0 +1,128 @@
+package org.argeo.eclipse.ui.fs;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.argeo.api.cms.CmsLog;
+import org.argeo.eclipse.ui.ColumnDefinition;
+import org.argeo.eclipse.ui.EclipseUiUtils;
+import org.eclipse.jface.viewers.ISelectionChangedListener;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.SelectionChangedEvent;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.custom.SashForm;
+import org.eclipse.swt.events.KeyEvent;
+import org.eclipse.swt.events.KeyListener;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Table;
+import org.eclipse.swt.widgets.Tree;
+
+/** A simple Java 7 nio files browser with a tree */
+public class SimpleFsTreeBrowser extends Composite {
+       private final static CmsLog log = CmsLog.getLog(SimpleFsTreeBrowser.class);
+       private static final long serialVersionUID = -40347919096946585L;
+
+       private Path currSelected;
+       private FsTreeViewer treeViewer;
+       private FsTableViewer directoryDisplayViewer;
+
+       public SimpleFsTreeBrowser(Composite parent, int style) {
+               super(parent, style);
+               createContent(this);
+               // parent.layout(true, true);
+       }
+
+       private void createContent(Composite parent) {
+               parent.setLayout(EclipseUiUtils.noSpaceGridLayout());
+               SashForm form = new SashForm(parent, SWT.HORIZONTAL);
+               Composite child1 = new Composite(form, SWT.NONE);
+               populateTree(child1);
+               Composite child2 = new Composite(form, SWT.BORDER);
+               populateDisplay(child2);
+               form.setLayoutData(EclipseUiUtils.fillAll());
+               form.setWeights(new int[] { 1, 3 });
+       }
+
+       public void setInput(Path... paths) {
+               treeViewer.setPathsInput(paths);
+               treeViewer.getControl().getParent().layout(true, true);
+       }
+
+       private void populateTree(final Composite parent) {
+               // GridLayout layout = EclipseUiUtils.noSpaceGridLayout();
+               // layout.verticalSpacing = 5;
+               parent.setLayout(new GridLayout());
+
+               ISelectionChangedListener selList = new MySelectionChangedListener();
+
+               treeViewer = new FsTreeViewer(parent, SWT.MULTI);
+               Tree tree = treeViewer.configureDefaultSingleColumnTable(500);
+               GridData gd = EclipseUiUtils.fillAll();
+               // gd.horizontalIndent = 10;
+               tree.setLayoutData(gd);
+               treeViewer.addSelectionChangedListener(selList);
+       }
+
+       private class MySelectionChangedListener implements ISelectionChangedListener {
+               @Override
+               public void selectionChanged(SelectionChangedEvent event) {
+                       IStructuredSelection selection = (IStructuredSelection) treeViewer.getSelection();
+                       if (selection.isEmpty())
+                               return;
+                       else {
+                               Path newSelected = (Path) selection.getFirstElement();
+                               if (newSelected.equals(currSelected))
+                                       return;
+                               currSelected = newSelected;
+                               if (Files.isDirectory(currSelected))
+                                       directoryDisplayViewer.setInput(currSelected, "*");
+                       }
+               }
+       }
+
+       private void populateDisplay(final Composite parent) {
+               parent.setLayout(EclipseUiUtils.noSpaceGridLayout());
+               directoryDisplayViewer = new FsTableViewer(parent, SWT.MULTI);
+               List<ColumnDefinition> colDefs = new ArrayList<>();
+               colDefs.add(new ColumnDefinition(new FileIconNameLabelProvider(), "Name", 200, 200));
+               colDefs.add(new ColumnDefinition(new NioFileLabelProvider(FsUiConstants.PROPERTY_SIZE), "Size", 100, 100));
+               colDefs.add(new ColumnDefinition(new NioFileLabelProvider(FsUiConstants.PROPERTY_TYPE), "Type", 300, 300));
+               colDefs.add(new ColumnDefinition(new NioFileLabelProvider(FsUiConstants.PROPERTY_LAST_MODIFIED),
+                               "Last modified", 100, 100));
+               Table table = directoryDisplayViewer.configureDefaultTable(colDefs);
+               table.setLayoutData(EclipseUiUtils.fillAll());
+
+               table.addKeyListener(new KeyListener() {
+                       private static final long serialVersionUID = -8083424284436715709L;
+
+                       @Override
+                       public void keyReleased(KeyEvent e) {
+                       }
+
+                       @Override
+                       public void keyPressed(KeyEvent e) {
+                               log.debug("Key event received: " + e.keyCode);
+                               IStructuredSelection selection = (IStructuredSelection) directoryDisplayViewer.getSelection();
+                               Path selected = null;
+                               if (!selection.isEmpty())
+                                       selected = ((Path) selection.getFirstElement());
+                               if (e.keyCode == SWT.CR) {
+                                       if (!Files.isDirectory(selected))
+                                               return;
+                                       if (selected != null) {
+                                               currSelected = selected;
+                                               directoryDisplayViewer.setInput(currSelected, "*");
+                                       }
+                               } else if (e.keyCode == SWT.BS) {
+                                       currSelected = currSelected.getParent();
+                                       directoryDisplayViewer.setInput(currSelected, "*");
+                                       directoryDisplayViewer.getTable().setFocus();
+                               }
+                       }
+               });
+       }
+}