@Override
protected String browse(final SapphireRenderingContext context) {
final Property property = property();
final List<Path> roots = getBasePaths();
String selectedAbsolutePath = null;
final List<String> extensions;
if (this.fileExtensionService == null) {
extensions = this.staticFileExtensionsList;
} else {
extensions = this.fileExtensionService.extensions();
}
if (enclosed()) {
final List<IContainer> baseContainers = new ArrayList<IContainer>();
for (Path path : roots) {
final IContainer baseContainer = getWorkspaceContainer(path.toFile());
if (baseContainer != null) {
baseContainers.add(baseContainer);
} else {
break;
}
}
final ITreeContentProvider contentProvider;
final ILabelProvider labelProvider;
final ViewerComparator viewerComparator;
final Object input;
if (roots.size() == baseContainers.size()) {
// All paths are in the Eclipse Workspace. Use the available content and label
// providers.
contentProvider = new WorkspaceContentProvider(baseContainers);
labelProvider = new WorkbenchLabelProvider();
viewerComparator = new ResourceComparator();
input = ResourcesPlugin.getWorkspace().getRoot();
} else {
// At least one of the roots is not in the Eclipse Workspace. Use custom file
// system content and label providers.
contentProvider = new FileSystemContentProvider(roots);
labelProvider = new FileSystemLabelProvider(context);
viewerComparator = new FileSystemNodeComparator();
input = new Object();
}
final ElementTreeSelectionDialog dialog =
new ElementTreeSelectionDialog(context.getShell(), labelProvider, contentProvider);
dialog.setTitle(property.definition().getLabel(false, CapitalizationType.TITLE_STYLE, false));
dialog.setMessage(
createBrowseDialogMessage(
property.definition().getLabel(true, CapitalizationType.NO_CAPS, false)));
dialog.setAllowMultiple(false);
dialog.setHelpAvailable(false);
dialog.setInput(input);
dialog.setComparator(viewerComparator);
final Path currentPathAbsolute = convertToAbsolute((Path) ((Value<?>) property).content());
if (currentPathAbsolute != null) {
Object initialSelection = null;
if (contentProvider instanceof WorkspaceContentProvider) {
final URI uri = currentPathAbsolute.toFile().toURI();
final IWorkspaceRoot wsroot = ResourcesPlugin.getWorkspace().getRoot();
final IFile[] files = wsroot.findFilesForLocationURI(uri);
if (files.length > 0) {
final IFile file = files[0];
if (file.exists()) {
initialSelection = file;
}
}
if (initialSelection == null) {
final IContainer[] containers = wsroot.findContainersForLocationURI(uri);
if (containers.length > 0) {
final IContainer container = containers[0];
if (container.exists()) {
initialSelection = container;
}
}
}
} else {
initialSelection =
((FileSystemContentProvider) contentProvider).find(currentPathAbsolute);
}
if (initialSelection != null) {
dialog.setInitialSelection(initialSelection);
}
}
if (this.type == FileSystemResourceType.FILE) {
dialog.setValidator(new FileSelectionStatusValidator());
} else if (this.type == FileSystemResourceType.FOLDER) {
dialog.addFilter(new ContainersOnlyViewerFilter());
}
if (!extensions.isEmpty()) {
dialog.addFilter(new ExtensionBasedViewerFilter(extensions));
}
if (dialog.open() == Window.OK) {
final Object firstResult = dialog.getFirstResult();
if (firstResult instanceof IResource) {
selectedAbsolutePath = ((IResource) firstResult).getLocation().toString();
} else {
selectedAbsolutePath = ((FileSystemNode) firstResult).getFile().getPath();
}
}
} else if (this.type == FileSystemResourceType.FOLDER) {
final DirectoryDialog dialog = new DirectoryDialog(context.getShell());
dialog.setText(
property.definition().getLabel(true, CapitalizationType.FIRST_WORD_ONLY, false));
dialog.setMessage(
createBrowseDialogMessage(
property.definition().getLabel(true, CapitalizationType.NO_CAPS, false)));
final Value<?> value = (Value<?>) property;
final Path path = (Path) value.content();
if (path != null) {
dialog.setFilterPath(path.toOSString());
} else if (roots.size() > 0) {
dialog.setFilterPath(roots.get(0).toOSString());
}
selectedAbsolutePath = dialog.open();
} else {
final FileDialog dialog = new FileDialog(context.getShell());
dialog.setText(
property.definition().getLabel(true, CapitalizationType.FIRST_WORD_ONLY, false));
final Value<?> value = (Value<?>) property;
final Path path = (Path) value.content();
if (path != null && path.segmentCount() > 1) {
dialog.setFilterPath(path.removeLastSegments(1).toOSString());
dialog.setFileName(path.lastSegment());
} else if (roots.size() > 0) {
dialog.setFilterPath(roots.get(0).toOSString());
}
if (!extensions.isEmpty()) {
final StringBuilder buf = new StringBuilder();
for (String extension : extensions) {
if (buf.length() > 0) {
buf.append(';');
}
buf.append("*.");
buf.append(extension);
}
dialog.setFilterExtensions(new String[] {buf.toString()});
}
selectedAbsolutePath = dialog.open();
}
if (selectedAbsolutePath != null) {
final Path relativePath = convertToRelative(new Path(selectedAbsolutePath));
if (relativePath != null) {
String result = relativePath.toPortableString();
if (this.includeLeadingSlash) {
result = "/" + result;
}
return result;
}
}
return null;
}
