rse/plugins/org.eclipse.dltk.rse.ui/src/org/eclipse/dltk/internal/ui/rse/RSEEnvironmentUI.java

package org.eclipse.dltk.internal.ui.rse;

import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.dltk.core.internal.rse.DLTKRSEPlugin;
import org.eclipse.dltk.core.internal.rse.RSEEnvironment;
import org.eclipse.dltk.ui.environment.IEnvironmentUI;
import org.eclipse.jface.window.Window;
import org.eclipse.rse.core.filters.ISystemFilter;
import org.eclipse.rse.core.filters.ISystemFilterReference;
import org.eclipse.rse.files.ui.dialogs.SystemRemoteFileDialog;
import org.eclipse.rse.files.ui.dialogs.SystemRemoteFolderDialog;
import org.eclipse.rse.services.clientserver.messages.SystemMessageException;
import org.eclipse.rse.subsystems.files.core.model.RemoteFileUtility;
import org.eclipse.rse.subsystems.files.core.subsystems.IRemoteFile;
import org.eclipse.rse.subsystems.files.core.subsystems.IRemoteFileSubSystem;
import org.eclipse.swt.widgets.Shell;

public class RSEEnvironmentUI implements IEnvironmentUI {
	private RSEEnvironment environment;

	public RSEEnvironmentUI(RSEEnvironment environment) {
		this.environment = environment;
	}

	@Override
	public String selectFolder(Shell shell) {
		return selectFolder(shell, null);
	}

	@Override
	public String selectFolder(Shell shell, String initialFolder) {
		if (!environment.connect(true)) {
			return null;
		}
		SystemRemoteFolderDialog dialog = new SystemRemoteFolderDialog(shell);
		dialog.setDefaultSystemConnection(this.environment.getHost(), true);
		if (initialFolder != null && initialFolder.length() != 0) {
			final IRemoteFileSubSystem fs = RemoteFileUtility
					.getFileSubSystem(environment.getHost());
			if (fs != null) {
				try {
					final IRemoteFile remoteFile = fs.getRemoteFileObject(
							initialFolder, new NullProgressMonitor());
					if (remoteFile != null && remoteFile.exists()) {
						dialog.setPreSelection(remoteFile);
					}
				} catch (SystemMessageException e) {
					DLTKRSEPlugin.log(e);
				}
			}
		}
		if (dialog.open() == Window.OK) {
			Object selectedObject = dialog.getSelectedObject();
			if (selectedObject instanceof IRemoteFile) {
				IRemoteFile file = (IRemoteFile) selectedObject;
				return file.getAbsolutePath();
			} else if (selectedObject instanceof ISystemFilterReference) {
				final ISystemFilter filter = ((ISystemFilterReference) selectedObject)
						.getReferencedFilter();
				if (filter != null && filter.getFilterStringCount() == 1) {
					final String filterString = filter.getFilterStrings()[0];
					if (filterString.endsWith(FILTER_STD_SUFFIX)) {
						final IRemoteFileSubSystem fs = RemoteFileUtility
								.getFileSubSystem(environment.getHost());
						if (fs != null) {
							try {
								final IRemoteFile remoteFile = fs
										.getRemoteFileObject(filterString
												.substring(0, filterString
														.length()
														- FILTER_STD_SUFFIX
																.length()),
												new NullProgressMonitor());
								if (remoteFile != null) {
									return remoteFile.getAbsolutePath();
								}
							} catch (SystemMessageException e) {
								DLTKRSEPlugin.log(e);
							}
						}
					}
				}
			}
		}
		return null;
	}

	private static final String FILTER_STD_SUFFIX = "/*"; //$NON-NLS-1$

	@Override
	public String selectFile(Shell shell, int fileType) {
		return selectFile(shell, fileType, null);
	}

	/**
	 * @since 2.0
	 */
	@Override
	public String selectFile(Shell shell, int fileType, String initialSelection) {
		if (!environment.connect(true)) {
			return null;
		}
		SystemRemoteFileDialog dialog = new SystemRemoteFileDialog(shell);
		dialog.setDefaultSystemConnection(this.environment.getHost(), true);
		if (initialSelection != null && initialSelection.length() != 0) {
			final IRemoteFileSubSystem fs = RemoteFileUtility
					.getFileSubSystem(environment.getHost());
			if (fs != null) {
				try {
					final IRemoteFile remoteFile = fs.getRemoteFileObject(
							initialSelection, new NullProgressMonitor());
					if (remoteFile != null && remoteFile.exists()) {
						dialog.setPreSelection(remoteFile);
					}
				} catch (SystemMessageException e) {
					DLTKRSEPlugin.log(e);
				}
			}
		}
		if (dialog.open() == Window.OK) {
			Object selectedObject = dialog.getSelectedObject();
			if (selectedObject instanceof IRemoteFile) {
				IRemoteFile file = (IRemoteFile) selectedObject;
				return file.getAbsolutePath();
			}
		}
		return null;
	}
}