+++ /dev/null
-package org.argeo.eclipse.ui.fs;
-
-import java.io.IOException;
-import java.nio.file.DirectoryStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.LinkedHashMap;
-
-import org.argeo.api.cms.CmsLog;
-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.jface.viewers.StructuredSelection;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.custom.SashForm;
-import org.eclipse.swt.custom.ScrolledComposite;
-import org.eclipse.swt.events.ControlAdapter;
-import org.eclipse.swt.events.ControlEvent;
-import org.eclipse.swt.events.KeyEvent;
-import org.eclipse.swt.events.KeyListener;
-import org.eclipse.swt.events.ModifyEvent;
-import org.eclipse.swt.events.ModifyListener;
-import org.eclipse.swt.graphics.Rectangle;
-import org.eclipse.swt.layout.GridData;
-import org.eclipse.swt.layout.GridLayout;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Label;
-import org.eclipse.swt.widgets.Table;
-import org.eclipse.swt.widgets.Text;
-
-/** Simple UI provider that populates a composite parent given a NIO path */
-public class AdvancedFsBrowser {
- private final static CmsLog log = CmsLog.getLog(AdvancedFsBrowser.class);
-
- // Some local constants to experiment. should be cleaned
- // private final static int THUMBNAIL_WIDTH = 400;
- // private Point imageWidth = new Point(250, 0);
- private final static int COLUMN_WIDTH = 160;
-
- private Path initialPath;
- private Path currEdited;
- // Filter
- private Composite displayBoxCmp;
- private Text parentPathTxt;
- private Text filterTxt;
- // Browser columns
- private ScrolledComposite scrolledCmp;
- // Keep a cache of the opened directories
- private LinkedHashMap<Path, FilterEntitiesVirtualTable> browserCols = new LinkedHashMap<>();
- private Composite scrolledCmpBody;
-
- public Control createUi(Composite parent, Path basePath) {
- if (basePath == null)
- throw new IllegalArgumentException("Context cannot be null");
- parent.setLayout(new GridLayout());
-
- // top filter
- Composite filterCmp = new Composite(parent, SWT.NO_FOCUS);
- filterCmp.setLayoutData(EclipseUiUtils.fillWidth());
- addFilterPanel(filterCmp);
-
- // Bottom part a sash with browser on the left
- SashForm form = new SashForm(parent, SWT.HORIZONTAL);
- // form.setLayout(new FillLayout());
- form.setLayoutData(EclipseUiUtils.fillAll());
- Composite leftCmp = new Composite(form, SWT.NO_FOCUS);
- displayBoxCmp = new Composite(form, SWT.NONE);
- form.setWeights(new int[] { 3, 1 });
-
- createBrowserPart(leftCmp, basePath);
- // leftCmp.addControlListener(new ControlAdapter() {
- // @Override
- // public void controlResized(ControlEvent e) {
- // Rectangle r = leftCmp.getClientArea();
- // log.warn("Browser resized: " + r.toString());
- // scrolledCmp.setMinSize(browserCols.size() * (COLUMN_WIDTH + 2),
- // SWT.DEFAULT);
- // // scrolledCmp.setMinSize(scrolledCmpBody.computeSize(SWT.DEFAULT,
- // // r.height));
- // }
- // });
-
- populateCurrEditedDisplay(displayBoxCmp, basePath);
-
- // INIT
- setEdited(basePath);
- initialPath = basePath;
- // form.layout(true, true);
- return parent;
- }
-
- private void createBrowserPart(Composite parent, Path context) {
- parent.setLayout(EclipseUiUtils.noSpaceGridLayout());
-
- // scrolled composite
- scrolledCmp = new ScrolledComposite(parent, SWT.H_SCROLL | SWT.BORDER | SWT.NO_FOCUS);
- scrolledCmp.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
- scrolledCmp.setExpandVertical(true);
- scrolledCmp.setExpandHorizontal(true);
- scrolledCmp.setShowFocusedControl(true);
-
- scrolledCmpBody = new Composite(scrolledCmp, SWT.NO_FOCUS);
- scrolledCmp.setContent(scrolledCmpBody);
- scrolledCmpBody.addControlListener(new ControlAdapter() {
- private static final long serialVersionUID = 183238447102854553L;
-
- @Override
- public void controlResized(ControlEvent e) {
- Rectangle r = scrolledCmp.getClientArea();
- scrolledCmp.setMinSize(scrolledCmpBody.computeSize(SWT.DEFAULT, r.height));
- }
- });
- initExplorer(scrolledCmpBody, context);
- scrolledCmpBody.layout(true, true);
- scrolledCmp.layout();
-
- }
-
- private Control initExplorer(Composite parent, Path context) {
- parent.setLayout(EclipseUiUtils.noSpaceGridLayout());
- return createBrowserColumn(parent, context);
- }
-
- private Control createBrowserColumn(Composite parent, Path context) {
- // TODO style is not correctly managed.
- FilterEntitiesVirtualTable table = new FilterEntitiesVirtualTable(parent, SWT.BORDER | SWT.NO_FOCUS, context);
- // CmsUtils.style(table, ArgeoOrgStyle.browserColumn.style());
- table.filterList("*");
- table.setLayoutData(new GridData(SWT.LEFT, SWT.FILL, false, true));
- browserCols.put(context, table);
- parent.layout(true, true);
- return table;
- }
-
- public void addFilterPanel(Composite parent) {
- parent.setLayout(EclipseUiUtils.noSpaceGridLayout(new GridLayout(2, false)));
-
- parentPathTxt = new Text(parent, SWT.NO_FOCUS);
- parentPathTxt.setEditable(false);
-
- filterTxt = new Text(parent, SWT.SEARCH | SWT.ICON_CANCEL);
- filterTxt.setMessage("Filter current list");
- filterTxt.setLayoutData(EclipseUiUtils.fillWidth());
- filterTxt.addModifyListener(new ModifyListener() {
- private static final long serialVersionUID = 1L;
-
- public void modifyText(ModifyEvent event) {
- modifyFilter(false);
- }
- });
- filterTxt.addKeyListener(new KeyListener() {
- private static final long serialVersionUID = 2533535233583035527L;
-
- @Override
- public void keyReleased(KeyEvent e) {
- }
-
- @Override
- public void keyPressed(KeyEvent e) {
- boolean shiftPressed = (e.stateMask & SWT.SHIFT) != 0;
- // boolean altPressed = (e.stateMask & SWT.ALT) != 0;
- FilterEntitiesVirtualTable currTable = null;
- if (currEdited != null) {
- FilterEntitiesVirtualTable table = browserCols.get(currEdited);
- if (table != null && !table.isDisposed())
- currTable = table;
- }
-
- if (e.keyCode == SWT.ARROW_DOWN)
- currTable.setFocus();
- else if (e.keyCode == SWT.BS) {
- if (filterTxt.getText().equals("")
- && !(currEdited.getNameCount() == 1 || currEdited.equals(initialPath))) {
- Path oldEdited = currEdited;
- Path parentPath = currEdited.getParent();
- setEdited(parentPath);
- if (browserCols.containsKey(parentPath))
- browserCols.get(parentPath).setSelected(oldEdited);
- filterTxt.setFocus();
- e.doit = false;
- }
- } else if (e.keyCode == SWT.TAB && !shiftPressed) {
- Path uniqueChild = getOnlyChild(currEdited, filterTxt.getText());
- if (uniqueChild != null) {
- // Highlight the unique chosen child
- currTable.setSelected(uniqueChild);
- setEdited(uniqueChild);
- }
- filterTxt.setFocus();
- e.doit = false;
- }
- }
- });
- }
-
- private Path getOnlyChild(Path parent, String filter) {
- try (DirectoryStream<Path> stream = Files.newDirectoryStream(currEdited, filter + "*")) {
- Path uniqueChild = null;
- boolean moreThanOne = false;
- loop: for (Path entry : stream) {
- if (uniqueChild == null) {
- uniqueChild = entry;
- } else {
- moreThanOne = true;
- break loop;
- }
- }
- if (!moreThanOne)
- return uniqueChild;
- return null;
- } catch (IOException ioe) {
- throw new FsUiException(
- "Unable to determine unique child existence and get it under " + parent + " with filter " + filter,
- ioe);
- }
- }
-
- private void setEdited(Path path) {
- currEdited = path;
- EclipseUiUtils.clear(displayBoxCmp);
- populateCurrEditedDisplay(displayBoxCmp, currEdited);
- refreshFilters(path);
- refreshBrowser(path);
- }
-
- private void refreshFilters(Path path) {
- parentPathTxt.setText(path.toUri().toString());
- filterTxt.setText("");
- filterTxt.getParent().layout();
- }
-
- private void refreshBrowser(Path currPath) {
- Path currParPath = currPath.getParent();
- Object[][] colMatrix = new Object[browserCols.size()][2];
-
- int i = 0, currPathIndex = -1, lastLeftOpenedIndex = -1;
- for (Path path : browserCols.keySet()) {
- colMatrix[i][0] = path;
- colMatrix[i][1] = browserCols.get(path);
- if (currPathIndex >= 0 && lastLeftOpenedIndex < 0 && currParPath != null) {
- boolean leaveOpened = path.startsWith(currPath);
- if (!leaveOpened)
- lastLeftOpenedIndex = i;
- }
- if (currParPath.equals(path))
- currPathIndex = i;
- i++;
- }
-
- if (currPathIndex >= 0 && lastLeftOpenedIndex >= 0) {
- // dispose and remove useless cols
- for (int l = i - 1; l >= lastLeftOpenedIndex; l--) {
- ((FilterEntitiesVirtualTable) colMatrix[l][1]).dispose();
- browserCols.remove(colMatrix[l][0]);
- }
- }
-
- if (browserCols.containsKey(currPath)) {
- FilterEntitiesVirtualTable currCol = browserCols.get(currPath);
- if (currCol.isDisposed()) {
- // Does it still happen ?
- log.warn(currPath + " browser column was disposed and still listed");
- browserCols.remove(currPath);
- }
- }
-
- if (!browserCols.containsKey(currPath) && Files.isDirectory(currPath))
- createBrowserColumn(scrolledCmpBody, currPath);
-
- scrolledCmpBody.setLayout(EclipseUiUtils.noSpaceGridLayout(new GridLayout(browserCols.size(), false)));
- scrolledCmpBody.layout(true, true);
- // also resize the scrolled composite
- scrolledCmp.layout();
- }
-
- private void modifyFilter(boolean fromOutside) {
- if (!fromOutside)
- if (currEdited != null) {
- String filter = filterTxt.getText() + "*";
- FilterEntitiesVirtualTable table = browserCols.get(currEdited);
- if (table != null && !table.isDisposed())
- table.filterList(filter);
- }
- }
-
- /**
- * Recreates the content of the box that displays information about the current
- * selected node.
- */
- private void populateCurrEditedDisplay(Composite parent, Path context) {
- parent.setLayout(new GridLayout());
-
- // if (isImg(context)) {
- // EditableImage image = new Img(parent, RIGHT, context, imageWidth);
- // image.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, false,
- // 2, 1));
- // }
-
- try {
- Label contextL = new Label(parent, SWT.NONE);
- contextL.setText(context.getFileName().toString());
- contextL.setFont(EclipseUiUtils.getBoldFont(parent));
- addProperty(parent, "Last modified", Files.getLastModifiedTime(context).toString());
- addProperty(parent, "Owner", Files.getOwner(context).getName());
- if (Files.isDirectory(context)) {
- addProperty(parent, "Type", "Folder");
- } else {
- String mimeType = Files.probeContentType(context);
- if (EclipseUiUtils.isEmpty(mimeType))
- mimeType = "<i>Unknown</i>";
- addProperty(parent, "Type", mimeType);
- addProperty(parent, "Size", FsUiUtils.humanReadableByteCount(Files.size(context), false));
- }
- parent.layout(true, true);
- } catch (IOException e) {
- throw new FsUiException("Cannot display details for " + context, e);
- }
- }
-
- private void addProperty(Composite parent, String propName, String value) {
- Label contextL = new Label(parent, SWT.NONE);
- contextL.setText(propName + ": " + value);
- }
-
- /**
- * Almost canonical implementation of a table that displays the content of a
- * directory
- */
- private class FilterEntitiesVirtualTable extends Composite {
- private static final long serialVersionUID = 2223410043691844875L;
-
- // Context
- private Path context;
- private Path currSelected = null;
-
- // UI Objects
- private FsTableViewer viewer;
-
- @Override
- public boolean setFocus() {
- if (viewer.getTable().isDisposed())
- return false;
- if (currSelected != null)
- viewer.setSelection(new StructuredSelection(currSelected), true);
- else if (viewer.getSelection().isEmpty()) {
- Object first = viewer.getElementAt(0);
- if (first != null)
- viewer.setSelection(new StructuredSelection(first), true);
- }
- return viewer.getTable().setFocus();
- }
-
- /**
- * Enable highlighting the correct element in the table when externally browsing
- * (typically via the command-line-like Text field)
- */
- void setSelected(Path selected) {
- // to prevent change selection event to be thrown
- currSelected = selected;
- viewer.setSelection(new StructuredSelection(currSelected), true);
- }
-
- void filterList(String filter) {
- viewer.setInput(context, filter);
- }
-
- public FilterEntitiesVirtualTable(Composite parent, int style, Path context) {
- super(parent, SWT.NO_FOCUS);
- this.context = context;
- createTableViewer(this);
- }
-
- private void createTableViewer(final Composite parent) {
- parent.setLayout(EclipseUiUtils.noSpaceGridLayout());
-
- // We must limit the size of the table otherwise the full list is
- // loaded before the layout happens
- // Composite listCmp = new Composite(parent, SWT.NO_FOCUS);
- // GridData gd = new GridData(SWT.LEFT, SWT.FILL, false, true);
- // gd.widthHint = COLUMN_WIDTH;
- // listCmp.setLayoutData(gd);
- // listCmp.setLayout(EclipseUiUtils.noSpaceGridLayout());
- // viewer = new TableViewer(listCmp, SWT.VIRTUAL | SWT.MULTI |
- // SWT.V_SCROLL);
- // Table table = viewer.getTable();
- // table.setLayoutData(EclipseUiUtils.fillAll());
-
- viewer = new FsTableViewer(parent, SWT.MULTI);
- Table table = viewer.configureDefaultSingleColumnTable(COLUMN_WIDTH);
-
- viewer.addSelectionChangedListener(new ISelectionChangedListener() {
-
- @Override
- public void selectionChanged(SelectionChangedEvent event) {
- IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
- if (selection.isEmpty())
- return;
- Object obj = selection.getFirstElement();
- Path newSelected;
- if (obj instanceof Path)
- newSelected = (Path) obj;
- else if (obj instanceof ParentDir)
- newSelected = ((ParentDir) obj).getPath();
- else
- return;
- if (newSelected.equals(currSelected))
- return;
- currSelected = newSelected;
- setEdited(newSelected);
-
- }
- });
-
- table.addKeyListener(new KeyListener() {
- private static final long serialVersionUID = -8083424284436715709L;
-
- @Override
- public void keyReleased(KeyEvent e) {
- }
-
- @Override
- public void keyPressed(KeyEvent e) {
- IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
- Path selected = null;
- if (!selection.isEmpty())
- selected = ((Path) selection.getFirstElement());
- if (e.keyCode == SWT.ARROW_RIGHT) {
- if (!Files.isDirectory(selected))
- return;
- if (selected != null) {
- setEdited(selected);
- browserCols.get(selected).setFocus();
- }
- } else if (e.keyCode == SWT.ARROW_LEFT) {
- if (context.equals(initialPath))
- return;
- Path parent = context.getParent();
- if (parent == null)
- return;
-
- setEdited(parent);
- browserCols.get(parent).setFocus();
- }
- }
- });
- }
- }
-}
projects / lgpl / argeo-commons.git / blobdiff