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/*******************************************************************************
* Copyright (c) 2011 Wind River Systems, Inc. and others. All rights reserved.
* This program and the accompanying materials are made available under the terms
* of the Eclipse Public License v1.0 which accompanies this distribution, and is
* available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.ui.controls.file;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.dialogs.IDialogPage;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Dialog;
import org.eclipse.swt.widgets.DirectoryDialog;
import org.eclipse.tcf.te.runtime.interfaces.properties.IPropertiesContainer;
import org.eclipse.tcf.te.runtime.properties.PropertiesContainer;
import org.eclipse.tcf.te.ui.controls.BaseDialogSelectionControl;
import org.eclipse.tcf.te.ui.controls.nls.Messages;
import org.eclipse.tcf.te.ui.controls.validator.DirectoryNameValidator;
import org.eclipse.tcf.te.ui.controls.validator.Validator;
import org.eclipse.tcf.te.ui.interfaces.data.IDataExchangeNode;
import org.osgi.framework.Bundle;
/**
* Base implementation of a simple directory selection control.
* <p>
* The control supports direct editing by the user or browsing for the directory. By
* default, the control has a history of recently selected directories.
*/
public class DirectorySelectionControl extends BaseDialogSelectionControl implements IDataExchangeNode {
private String dialogMessage = ""; //$NON-NLS-1$
/**
* Constructor.
*
* @param parentPage The parent dialog page this control is embedded in.
* Might be <code>null</code> if the control is not associated with a page.
*/
public DirectorySelectionControl(IDialogPage parentPage) {
super(parentPage);
setDialogTitle(Messages.DirectorySelectionControl_title);
setGroupLabel(Messages.DirectorySelectionControl_group_label);
setEditFieldLabel(Messages.DirectorySelectionControl_editfield_label);
}
/**
* Sets the dialogs description message. If the given message is <code>null</code>, the
* dialogs description message is set to an empty string.
*
* @param message The dialogs description message or <code>null</code>.
*/
public void setDialogMessage(String message) {
if (message == null) {
this.dialogMessage = ""; //$NON-NLS-1$
} else {
this.dialogMessage = message;
}
}
/**
* Returns the dialogs description message.
*
* @return The dialogs description message or an empty string.
*/
public String getDialogMessage() {
return dialogMessage;
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.controls.BaseDialogSelectionControl#doCreateDialogControl(org.eclipse.swt.widgets.Composite)
*/
@Override
protected Dialog doCreateDialogControl(Composite parent) {
Assert.isNotNull(parent);
Dialog dialog = new DirectoryDialog(parent.getShell());
return dialog;
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.controls.BaseDialogSelectionControl#configureDialogControl(org.eclipse.swt.widgets.Dialog)
*/
@Override
protected void configureDialogControl(Dialog dialog) {
super.configureDialogControl(dialog);
// We do expect a directory dialog here.
if (dialog instanceof DirectoryDialog) {
DirectoryDialog directoryDialog = (DirectoryDialog)dialog;
// the dialog should open within the directory of the currently selected
// directory. If no directory has been currently selected, it should open
// within the last browsed directory.
String selectedDirectory = doGetSelectedDirectory();
if (selectedDirectory != null && selectedDirectory.trim().length() > 0) {
directoryDialog.setFilterPath(selectedDirectory);
} else if (Platform.getBundle("org.eclipse.core.resources") != null //$NON-NLS-1$
&& Platform.getBundle("org.eclipse.core.resources").getState() == Bundle.ACTIVE) { //$NON-NLS-1$
directoryDialog.setFilterPath(org.eclipse.core.resources.ResourcesPlugin.getWorkspace().getRoot().getLocation().toOSString());
}
// set the dialogs description message
directoryDialog.setMessage(getDialogMessage());
}
}
/**
* Returns the directory to set as initial directory. This method
* is called from {@link #configureDialogControl(Dialog)} in case the dialog
* is a {@link DirectoryDialog}.
*
* @return The initial directory to set to the directory dialog or <code>null</code> if none.
*/
protected String doGetSelectedDirectory() {
return getEditFieldControlText();
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.controls.BaseEditBrowseTextControl#doCreateEditFieldValidator()
*/
@Override
protected Validator doCreateEditFieldValidator() {
return new DirectoryNameValidator(
Validator.ATTR_MANDATORY |
DirectoryNameValidator.ATTR_MUST_EXIST |
DirectoryNameValidator.ATTR_CAN_READ |
DirectoryNameValidator.ATTR_CAN_WRITE);
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.controls.BaseEditBrowseTextControl#setEditFieldValidator(org.eclipse.tcf.te.ui.controls.validator.Validator)
*/
@Override
public void setEditFieldValidator(Validator editFieldValidator) {
Assert.isTrue(editFieldValidator instanceof DirectoryNameValidator);
if (editFieldValidator instanceof DirectoryNameValidator) {
super.setEditFieldValidator(editFieldValidator);
}
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.controls.BaseDialogSelectionControl#doOpenDialogControl(org.eclipse.swt.widgets.Dialog)
*/
@Override
protected String doOpenDialogControl(Dialog dialog) {
Assert.isNotNull(dialog);
// We do expect a directory dialog here.
if (dialog instanceof DirectoryDialog) {
DirectoryDialog directoryDialog = (DirectoryDialog)dialog;
return directoryDialog.open();
}
return null;
}
protected String getPropertiesKey() {
return "Directory"; //$NON-NLS-1$
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.interfaces.data.IDataExchangeNode#setupData(org.eclipse.tcf.te.runtime.interfaces.properties.IPropertiesContainer)
*/
@Override
public void setupData(IPropertiesContainer data) {
String dir = data.getStringProperty(getPropertiesKey());
IPath path = dir != null ? new Path(dir) : null;
setEditFieldControlText(path != null ? path.toOSString() : ""); //$NON-NLS-1$
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.interfaces.data.IDataExchangeNode#extractData(org.eclipse.tcf.te.runtime.interfaces.properties.IPropertiesContainer)
*/
@Override
public void extractData(IPropertiesContainer data) {
String dir = doGetSelectedDirectory();
IPath path = dir.trim().length() > 0 ? new Path(dir) : null;
data.setProperty(getPropertiesKey(), path != null ? path.toPortableString() : null);
}
public boolean checkDataChanged(IPropertiesContainer data) {
IPropertiesContainer newData = new PropertiesContainer();
extractData(newData);
String newValue = newData.getStringProperty(getPropertiesKey());
String oldValue = data.getStringProperty(getPropertiesKey());
if (oldValue == null) {
return newValue != null;
}
return newValue == null || !oldValue.equals(newValue);
}
}
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