bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/dialogs/WizardNewLinkPage.java - platform/eclipse.platform.ui - Git at Google

 /************************************************************************
 Copyright (c) 2000, 2002 IBM Corporation and others.
 All rights reserved.   This program and the accompanying materials
 are made available under the terms of the Common Public License v1.0
 which accompanies this distribution, and is available at
 http://www.eclipse.org/legal/cpl-v10.html

 Contributors:
     IBM - Initial implementation
     Sebastian Davids <sdavids@gmx.de> - Fix for bug 19346 - Dialog
 	 	font should be activated and used by other components.
 ************************************************************************/

 package org.eclipse.ui.dialogs;

 import java.io.File;

 import org.eclipse.core.resources.*;
 import org.eclipse.core.runtime.*;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.wizard.WizardPage;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.graphics.Font;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.*;
 import org.eclipse.ui.help.WorkbenchHelp;
 import org.eclipse.ui.internal.*;
 import org.eclipse.ui.internal.dialogs.PathVariableSelectionDialog;

 /**
  * Standard resource link page for a wizard that creates a file or
  * folder resource.
  * <p>
  * This class may be instantiated; it is not intended to be subclassed.
  * </p>
  * @since 2.1
  */
 public class WizardNewLinkPage extends WizardPage {
 	private String initialLinkTarget;
 	private int type;
 	private boolean createLink = false;
 	private IContainer container;

 	// widgets
 	private Button linkButton;
 	private Text linkTargetField;
 	private Button browseButton;
 	private Button variablesButton;

 /**
  * Creates a new resource link wizard page.
  *
  * @param pageName the name of the page
  * @param type specifies the type of resource to link to.
  * 	<code>IResource.FILE</code> or <code>IResource.FOLDER</code>
  */
 public WizardNewLinkPage(String pageName, int type) {
 	super(pageName);
 	this.type = type;
 	setPageComplete(true);
 }
 /* (non-Javadoc)
  * Method declared on IDialogPage.
  */
 public void createControl(Composite parent) {
 	Font font = parent.getFont();
 	initializeDialogUnits(parent);
 	// top level group
 	Composite topLevel = new Composite(parent,SWT.NONE);
 	GridLayout layout = new GridLayout();
 	layout.numColumns = 3;
 	topLevel.setLayout(layout);
 	topLevel.setLayoutData(new GridData(
 		GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL));
 	topLevel.setFont(font);
 	WorkbenchHelp.setHelp(topLevel, IHelpContextIds.NEW_LINK_WIZARD_PAGE);

 	final Button createLinkButton = new Button(topLevel, SWT.CHECK);
 	if (type == IResource.FILE)
 		createLinkButton.setText(WorkbenchMessages.getString("WizardNewLinkPage.linkFileButton")); //$NON-NLS-1$
 	else
 		createLinkButton.setText(WorkbenchMessages.getString("WizardNewLinkPage.linkFolderButton")); //$NON-NLS-1$
 	createLinkButton.setSelection(createLink);
 	GridData data = new GridData();
 	data.horizontalSpan = 3;
 	createLinkButton.setLayoutData(data);
 	createLinkButton.setFont(font);
 	SelectionListener listener = new SelectionAdapter() {
 		public void widgetSelected(SelectionEvent e) {
 			createLink = createLinkButton.getSelection();
 			browseButton.setEnabled(createLink);
 			variablesButton.setEnabled(createLink);
 			linkTargetField.setEnabled(createLink);
 			setPageComplete(validatePage());
 		}
 	};
 	createLinkButton.addSelectionListener(listener);

 	createLinkLocationGroup(topLevel, createLink);
 	validatePage();

 	setErrorMessage(null);
 	setMessage(null);
 	setControl(topLevel);
 }
 /**
  * Creates the link target location widgets.
  *
  * @param locationGroup the parent composite
  * @param enabled sets the initial enabled state of the widgets
  */
 private void createLinkLocationGroup(Composite locationGroup, boolean enabled) {
 	Font font = locationGroup.getFont();
 	Label fill = new Label(locationGroup, SWT.NONE);
 	GridData data = new GridData();
 	Button button = new Button(locationGroup, SWT.CHECK);
 	data.widthHint = button.computeSize(SWT.DEFAULT, SWT.DEFAULT).x;
 	button.dispose();
 	fill.setLayoutData(data);

 	// link target location entry field
 	linkTargetField = new Text(locationGroup, SWT.BORDER);
 	data = new GridData(GridData.FILL_HORIZONTAL);
 	linkTargetField.setLayoutData(data);
 	linkTargetField.setFont(font);
 	linkTargetField.setEnabled(enabled);
 	linkTargetField.addModifyListener(new ModifyListener() {
 		public void modifyText(ModifyEvent e) {
 			setPageComplete(validatePage());
 		}
 	});
 	if (initialLinkTarget != null) {
 		linkTargetField.setText(initialLinkTarget);
 	}

 	// browse button
 	browseButton = new Button(locationGroup, SWT.PUSH);
 	setButtonLayoutData(browseButton);
 	browseButton.setFont(font);
 	browseButton.setText(WorkbenchMessages.getString("WizardNewLinkPage.browseButton")); //$NON-NLS-1$
 	browseButton.addSelectionListener(new SelectionAdapter() {
 		public void widgetSelected(SelectionEvent event) {
 			handleLinkTargetBrowseButtonPressed();
 		}
 	});
 	browseButton.setEnabled(enabled);

 	fill = new Label(locationGroup, SWT.NONE);
 	data = new GridData();
 	data.horizontalSpan = 2;
 	fill.setLayoutData(data);

 	// variables button
 	variablesButton = new Button(locationGroup, SWT.PUSH);
 	setButtonLayoutData(variablesButton);
 	variablesButton.setFont(font);
 	variablesButton.setText(WorkbenchMessages.getString("WizardNewLinkPage.variablesButton")); //$NON-NLS-1$
 	variablesButton.addSelectionListener(new SelectionAdapter() {
 		public void widgetSelected(SelectionEvent event) {
 			handleVariablesButtonPressed();
 		}
 	});
 	variablesButton.setEnabled(enabled);
 }
 /**
  * Returns the link target location entered by the user.
  *
  * @return the link target location entered by the user. null if the user
  * 	choose not to create a link.
  */
 public String getLinkTarget() {
 	if (createLink && linkTargetField != null && linkTargetField.isDisposed() == false) {
 		return linkTargetField.getText();
 	}
 	return null;
 }
 /**
  * Opens a file or directory browser depending on the link type.
  */
 private void handleLinkTargetBrowseButtonPressed() {
 	String linkTargetName = linkTargetField.getText();
 	File file = null;
 	String selection = null;

 	if ("".equals(linkTargetName) == false) {	//$NON-NLS-1$
 		file = new File(linkTargetName);
 		if (file.exists() == false) {
 			file = null;
 		}
 	}
 	if (type == IResource.FILE) {
 		FileDialog dialog = new FileDialog(getShell());
 		if (file != null) {
 			if (file.isFile()) {
 				dialog.setFileName(linkTargetName);
 			}
 			else {
 				dialog.setFilterPath(linkTargetName);
 			}
 		}
 		selection = dialog.open();
 	}
 	else {
 		DirectoryDialog dialog = new DirectoryDialog(getShell());
 		if (file != null) {
 			if (file.isFile()) {
 				linkTargetName = file.getParent();
 			}
 			if (linkTargetName != null) {
 				dialog.setFilterPath(linkTargetName);
 			}
 		}
 		dialog.setMessage(WorkbenchMessages.getString("WizardNewLinkPage.targetSelectionLabel")); //$NON-NLS-1$
 		selection = dialog.open();
 	}
 	if (selection != null) {
 		linkTargetField.setText(selection);
 	}
 }
 /**
  * Opens a path variable selection dialog
  */
 private void handleVariablesButtonPressed() {
 	PathVariableSelectionDialog dialog =
 		new PathVariableSelectionDialog(getShell(), type);

 	if (dialog.open() == IDialogConstants.OK_ID) {
 		String[] variableNames = (String[]) dialog.getResult();

 		if (variableNames != null) {
 			IPathVariableManager pathVariableManager = ResourcesPlugin.getWorkspace().getPathVariableManager();
 			IPath path = pathVariableManager.getValue(variableNames[0]);

 			if (path != null) {
 				linkTargetField.setText(path.toOSString());
 			}
 		}
 	}
 }
 /**
  * Sets the container to use for link validation.
  * This should be the parent of the new resource that is being
  * linked.
  *
  * @param container the container to use for link validation.
  */
 public void setContainer(IContainer container) {
 	this.container = container;
 }
 /**
  * Sets the value of the link target field
  *
  * @param target the value of the link target field
  */
 public void setLinkTarget(String target) {
 	initialLinkTarget = target;
 	if (linkTargetField != null && linkTargetField.isDisposed() == false) {
 		linkTargetField.setText(target);
 	}
 }
 /**
  * Validates the type of the given file against the link type specified
  * during page creation.
  *
  * @param linkTargetFile file to validate
  * @return boolean <code>true</code> if the link target type is valid
  * 	and <code>false</code> otherwise.
  */
 private boolean validateFileType(File linkTargetFile) {
 	boolean valid = true;

 	if (type == IResource.FILE && linkTargetFile.isFile() == false) {
 		setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetNotFile")); //$NON-NLS-1$
 		valid = false;
 	}
 	else
 	if (type == IResource.FOLDER && linkTargetFile.isDirectory() == false) {
 		setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetNotFolder")); //$NON-NLS-1$
 		valid = false;
 	}
 	return valid;
 }
 /**
  * Validates the name of the link target
  *
  * @param linkTargetName link target name to validate
  * @return boolean <code>true</code> if the link target name is valid
  * 	and <code>false</code> otherwise.
  */
 private boolean validateLinkTargetName(String linkTargetName) {
 	boolean valid = true;

 	if ("".equals(linkTargetName)) {//$NON-NLS-1$
 		setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetEmpty")); //$NON-NLS-1$
 		valid = false;
 	}
 	else {
 		IPath path = new Path("");//$NON-NLS-1$
 		if (path.isValidPath(linkTargetName) == false) {
 			setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetInvalid")); //$NON-NLS-1$
 			valid = false;
 		}
 	}
 	return valid;
 }
 /**
  * Returns whether this page's controls currently all contain valid
  * values.
  *
  * @return <code>true</code> if all controls are valid, and
  *   <code>false</code> if at least one is invalid
  */
 private boolean validatePage() {
 	boolean valid = true;
 	IWorkspace workspace = WorkbenchPlugin.getPluginWorkspace();

 	if (createLink) {
 		String linkTargetName = linkTargetField.getText();

 		valid = validateLinkTargetName(linkTargetName);
 		if (valid) {
 			File linkTargetFile = new Path(linkTargetName).toFile();
 			if (linkTargetFile.exists() == false) {
 				setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetNonExistent")); //$NON-NLS-1$
 				valid = false;
 			}
 			else {
 				IStatus locationStatus = workspace.validateLinkLocation(
 					container,
 					new Path(linkTargetName));

 				if (locationStatus.isOK() == false) {
 					setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetLocationInvalid")); //$NON-NLS-1$
 					valid = false;
 				}
 				else {
 					valid = validateFileType(linkTargetFile);
 				}
 			}
 		}
 	}
 	// Avoid draw flicker by clearing error message
 	// if all is valid.
 	if (valid) {
 		setMessage(null);
 		setErrorMessage(null);
 	}
 	return valid;
 }
 }
	/************************************************************************
	Copyright (c) 2000, 2002 IBM Corporation and others.
	All rights reserved. This program and the accompanying materials
	are made available under the terms of the Common Public License v1.0
	which accompanies this distribution, and is available at
	http://www.eclipse.org/legal/cpl-v10.html

	Contributors:
	IBM - Initial implementation
	Sebastian Davids <sdavids@gmx.de> - Fix for bug 19346 - Dialog
	font should be activated and used by other components.
	************************************************************************/

	package org.eclipse.ui.dialogs;

	import java.io.File;

	import org.eclipse.core.resources.*;
	import org.eclipse.core.runtime.*;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.wizard.WizardPage;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.*;
	import org.eclipse.swt.graphics.Font;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.*;
	import org.eclipse.ui.help.WorkbenchHelp;
	import org.eclipse.ui.internal.*;
	import org.eclipse.ui.internal.dialogs.PathVariableSelectionDialog;

	/**
	* Standard resource link page for a wizard that creates a file or
	* folder resource.
	* <p>
	* This class may be instantiated; it is not intended to be subclassed.
	* </p>
	* @since 2.1
	*/
	public class WizardNewLinkPage extends WizardPage {
	private String initialLinkTarget;
	private int type;
	private boolean createLink = false;
	private IContainer container;

	// widgets
	private Button linkButton;
	private Text linkTargetField;
	private Button browseButton;
	private Button variablesButton;

	/**
	* Creates a new resource link wizard page.
	*
	* @param pageName the name of the page
	* @param type specifies the type of resource to link to.
	* <code>IResource.FILE</code> or <code>IResource.FOLDER</code>
	*/
	public WizardNewLinkPage(String pageName, int type) {
	super(pageName);
	this.type = type;
	setPageComplete(true);
	}
	/* (non-Javadoc)
	* Method declared on IDialogPage.
	*/
	public void createControl(Composite parent) {
	Font font = parent.getFont();
	initializeDialogUnits(parent);
	// top level group
	Composite topLevel = new Composite(parent,SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 3;
	topLevel.setLayout(layout);
	topLevel.setLayoutData(new GridData(
	GridData.VERTICAL_ALIGN_FILL \| GridData.HORIZONTAL_ALIGN_FILL));
	topLevel.setFont(font);
	WorkbenchHelp.setHelp(topLevel, IHelpContextIds.NEW_LINK_WIZARD_PAGE);

	final Button createLinkButton = new Button(topLevel, SWT.CHECK);
	if (type == IResource.FILE)
	createLinkButton.setText(WorkbenchMessages.getString("WizardNewLinkPage.linkFileButton")); //$NON-NLS-1$
	else
	createLinkButton.setText(WorkbenchMessages.getString("WizardNewLinkPage.linkFolderButton")); //$NON-NLS-1$
	createLinkButton.setSelection(createLink);
	GridData data = new GridData();
	data.horizontalSpan = 3;
	createLinkButton.setLayoutData(data);
	createLinkButton.setFont(font);
	SelectionListener listener = new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	createLink = createLinkButton.getSelection();
	browseButton.setEnabled(createLink);
	variablesButton.setEnabled(createLink);
	linkTargetField.setEnabled(createLink);
	setPageComplete(validatePage());
	}
	};
	createLinkButton.addSelectionListener(listener);

	createLinkLocationGroup(topLevel, createLink);
	validatePage();

	setErrorMessage(null);
	setMessage(null);
	setControl(topLevel);
	}
	/**
	* Creates the link target location widgets.
	*
	* @param locationGroup the parent composite
	* @param enabled sets the initial enabled state of the widgets
	*/
	private void createLinkLocationGroup(Composite locationGroup, boolean enabled) {
	Font font = locationGroup.getFont();
	Label fill = new Label(locationGroup, SWT.NONE);
	GridData data = new GridData();
	Button button = new Button(locationGroup, SWT.CHECK);
	data.widthHint = button.computeSize(SWT.DEFAULT, SWT.DEFAULT).x;
	button.dispose();
	fill.setLayoutData(data);

	// link target location entry field
	linkTargetField = new Text(locationGroup, SWT.BORDER);
	data = new GridData(GridData.FILL_HORIZONTAL);
	linkTargetField.setLayoutData(data);
	linkTargetField.setFont(font);
	linkTargetField.setEnabled(enabled);
	linkTargetField.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	setPageComplete(validatePage());
	}
	});
	if (initialLinkTarget != null) {
	linkTargetField.setText(initialLinkTarget);
	}

	// browse button
	browseButton = new Button(locationGroup, SWT.PUSH);
	setButtonLayoutData(browseButton);
	browseButton.setFont(font);
	browseButton.setText(WorkbenchMessages.getString("WizardNewLinkPage.browseButton")); //$NON-NLS-1$
	browseButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	handleLinkTargetBrowseButtonPressed();
	}
	});
	browseButton.setEnabled(enabled);

	fill = new Label(locationGroup, SWT.NONE);
	data = new GridData();
	data.horizontalSpan = 2;
	fill.setLayoutData(data);

	// variables button
	variablesButton = new Button(locationGroup, SWT.PUSH);
	setButtonLayoutData(variablesButton);
	variablesButton.setFont(font);
	variablesButton.setText(WorkbenchMessages.getString("WizardNewLinkPage.variablesButton")); //$NON-NLS-1$
	variablesButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	handleVariablesButtonPressed();
	}
	});
	variablesButton.setEnabled(enabled);
	}
	/**
	* Returns the link target location entered by the user.
	*
	* @return the link target location entered by the user. null if the user
	* choose not to create a link.
	*/
	public String getLinkTarget() {
	if (createLink && linkTargetField != null && linkTargetField.isDisposed() == false) {
	return linkTargetField.getText();
	}
	return null;
	}
	/**
	* Opens a file or directory browser depending on the link type.
	*/
	private void handleLinkTargetBrowseButtonPressed() {
	String linkTargetName = linkTargetField.getText();
	File file = null;
	String selection = null;

	if ("".equals(linkTargetName) == false) { //$NON-NLS-1$
	file = new File(linkTargetName);
	if (file.exists() == false) {
	file = null;
	}
	}
	if (type == IResource.FILE) {
	FileDialog dialog = new FileDialog(getShell());
	if (file != null) {
	if (file.isFile()) {
	dialog.setFileName(linkTargetName);
	}
	else {
	dialog.setFilterPath(linkTargetName);
	}
	}
	selection = dialog.open();
	}
	else {
	DirectoryDialog dialog = new DirectoryDialog(getShell());
	if (file != null) {
	if (file.isFile()) {
	linkTargetName = file.getParent();
	}
	if (linkTargetName != null) {
	dialog.setFilterPath(linkTargetName);
	}
	}
	dialog.setMessage(WorkbenchMessages.getString("WizardNewLinkPage.targetSelectionLabel")); //$NON-NLS-1$
	selection = dialog.open();
	}
	if (selection != null) {
	linkTargetField.setText(selection);
	}
	}
	/**
	* Opens a path variable selection dialog
	*/
	private void handleVariablesButtonPressed() {
	PathVariableSelectionDialog dialog =
	new PathVariableSelectionDialog(getShell(), type);

	if (dialog.open() == IDialogConstants.OK_ID) {
	String[] variableNames = (String[]) dialog.getResult();

	if (variableNames != null) {
	IPathVariableManager pathVariableManager = ResourcesPlugin.getWorkspace().getPathVariableManager();
	IPath path = pathVariableManager.getValue(variableNames[0]);

	if (path != null) {
	linkTargetField.setText(path.toOSString());
	}
	}
	}
	}
	/**
	* Sets the container to use for link validation.
	* This should be the parent of the new resource that is being
	* linked.
	*
	* @param container the container to use for link validation.
	*/
	public void setContainer(IContainer container) {
	this.container = container;
	}
	/**
	* Sets the value of the link target field
	*
	* @param target the value of the link target field
	*/
	public void setLinkTarget(String target) {
	initialLinkTarget = target;
	if (linkTargetField != null && linkTargetField.isDisposed() == false) {
	linkTargetField.setText(target);
	}
	}
	/**
	* Validates the type of the given file against the link type specified
	* during page creation.
	*
	* @param linkTargetFile file to validate
	* @return boolean <code>true</code> if the link target type is valid
	* and <code>false</code> otherwise.
	*/
	private boolean validateFileType(File linkTargetFile) {
	boolean valid = true;

	if (type == IResource.FILE && linkTargetFile.isFile() == false) {
	setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetNotFile")); //$NON-NLS-1$
	valid = false;
	}
	else
	if (type == IResource.FOLDER && linkTargetFile.isDirectory() == false) {
	setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetNotFolder")); //$NON-NLS-1$
	valid = false;
	}
	return valid;
	}
	/**
	* Validates the name of the link target
	*
	* @param linkTargetName link target name to validate
	* @return boolean <code>true</code> if the link target name is valid
	* and <code>false</code> otherwise.
	*/
	private boolean validateLinkTargetName(String linkTargetName) {
	boolean valid = true;

	if ("".equals(linkTargetName)) {//$NON-NLS-1$
	setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetEmpty")); //$NON-NLS-1$
	valid = false;
	}
	else {
	IPath path = new Path("");//$NON-NLS-1$
	if (path.isValidPath(linkTargetName) == false) {
	setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetInvalid")); //$NON-NLS-1$
	valid = false;
	}
	}
	return valid;
	}
	/**
	* Returns whether this page's controls currently all contain valid
	* values.
	*
	* @return <code>true</code> if all controls are valid, and
	* <code>false</code> if at least one is invalid
	*/
	private boolean validatePage() {
	boolean valid = true;
	IWorkspace workspace = WorkbenchPlugin.getPluginWorkspace();

	if (createLink) {
	String linkTargetName = linkTargetField.getText();

	valid = validateLinkTargetName(linkTargetName);
	if (valid) {
	File linkTargetFile = new Path(linkTargetName).toFile();
	if (linkTargetFile.exists() == false) {
	setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetNonExistent")); //$NON-NLS-1$
	valid = false;
	}
	else {
	IStatus locationStatus = workspace.validateLinkLocation(
	container,
	new Path(linkTargetName));

	if (locationStatus.isOK() == false) {
	setErrorMessage(WorkbenchMessages.getString("WizardNewLinkPage.linkTargetLocationInvalid")); //$NON-NLS-1$
	valid = false;
	}
	else {
	valid = validateFileType(linkTargetFile);
	}
	}
	}
	}
	// Avoid draw flicker by clearing error message
	// if all is valid.
	if (valid) {
	setMessage(null);
	setErrorMessage(null);
	}
	return valid;
	}
	}