org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/EditVariableEntryDialog.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2005 IBM Corporation 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:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.internal.ui.wizards.buildpaths;

 import java.io.File;
 import java.util.HashSet;
 import java.util.Set;

 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Path;

 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.CLabel;
 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.Shell;

 import org.eclipse.jface.dialogs.StatusDialog;
 import org.eclipse.jface.window.Window;

 import org.eclipse.ui.PlatformUI;

 import org.eclipse.jdt.core.JavaCore;

 import org.eclipse.jdt.internal.corext.util.Messages;

 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
 import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
 import org.eclipse.jdt.internal.ui.wizards.NewWizardMessages;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.LayoutUtil;

 /**
   */
 public class EditVariableEntryDialog extends StatusDialog {

 	/**
 	 * The path to which the archive variable points.
 	 * Null if invalid path or not resolvable. Must not exist.
 	 */
 	private IPath fFileVariablePath;

 	private IStatus fNameStatus;

 	private Set fExistingEntries;
 	private VariablePathDialogField fFileNameField;
 	private CLabel fFullPathResolvedLabel;

 	/**
 	 * Constructor for EditVariableEntryDialog.
 	 * @param parent
 	 */
 	public EditVariableEntryDialog(Shell parent, IPath initialEntry, IPath[] existingEntries) {
 		super(parent);
 		setTitle(NewWizardMessages.EditVariableEntryDialog_title);

 		fExistingEntries= new HashSet();
 		if (existingEntries != null) {
 			for (int i = 0; i < existingEntries.length; i++) {
 				IPath curr= existingEntries[i];
 				if (!curr.equals(initialEntry)) {
 					fExistingEntries.add(curr);
 				}
 			}
 		}

 		SourceAttachmentAdapter adapter= new SourceAttachmentAdapter();

 		fFileNameField= new VariablePathDialogField(adapter);
 		fFileNameField.setDialogFieldListener(adapter);
 		fFileNameField.setLabelText(NewWizardMessages.EditVariableEntryDialog_filename_varlabel);
 		fFileNameField.setButtonLabel(NewWizardMessages.EditVariableEntryDialog_filename_external_varbutton);
 		fFileNameField.setVariableButtonLabel(NewWizardMessages.EditVariableEntryDialog_filename_variable_button);
 		String initialString= initialEntry != null ? initialEntry.toString() : ""; //$NON-NLS-1$
 		fFileNameField.setText(initialString);
 	}

 	public IPath getPath() {
 		return Path.fromOSString(fFileNameField.getText());
 	}


 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 	 */
 	protected Control createDialogArea(Composite parent) {
 		initializeDialogUnits(parent);
 		Composite composite= (Composite) super.createDialogArea(parent);

 		GridLayout layout= (GridLayout) composite.getLayout();
 		layout.numColumns= 3;

 		int widthHint= convertWidthInCharsToPixels(50);

 		GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 		gd.horizontalSpan= 3;

 		// archive name field
 		fFileNameField.doFillIntoGrid(composite, 4);
 		LayoutUtil.setHorizontalSpan(fFileNameField.getLabelControl(null), 3);
 		LayoutUtil.setWidthHint(fFileNameField.getTextControl(null), widthHint);
 		LayoutUtil.setHorizontalGrabbing(fFileNameField.getTextControl(null));

 		// label that shows the resolved path for variable jars
 		//DialogField.createEmptySpace(composite, 1);
 		fFullPathResolvedLabel= new CLabel(composite, SWT.LEFT);
 		fFullPathResolvedLabel.setText(getResolvedLabelString());
 		fFullPathResolvedLabel.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
 		DialogField.createEmptySpace(composite, 2);


 		fFileNameField.postSetFocusOnDialogField(parent.getDisplay());

 		PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IJavaHelpContextIds.SOURCE_ATTACHMENT_BLOCK);
 		applyDialogFont(composite);
 		return composite;
 	}

 	private class SourceAttachmentAdapter implements IStringButtonAdapter, IDialogFieldListener {

 		// -------- IStringButtonAdapter --------
 		public void changeControlPressed(DialogField field) {
 			attachmentChangeControlPressed(field);
 		}

 		// ---------- IDialogFieldListener --------
 		public void dialogFieldChanged(DialogField field) {
 			attachmentDialogFieldChanged(field);
 		}
 	}

 	private void attachmentChangeControlPressed(DialogField field) {
 		if (field == fFileNameField) {
 			IPath jarFilePath= chooseExtJarFile();
 			if (jarFilePath != null) {
 				fFileNameField.setText(jarFilePath.toString());
 			}
 		}
 	}

 	// ---------- IDialogFieldListener --------

 	private void attachmentDialogFieldChanged(DialogField field) {
 		if (field == fFileNameField) {
 			fNameStatus= updateFileNameStatus();
 		}
 		doStatusLineUpdate();
 	}


 	private IPath chooseExtJarFile() {
 		IPath currPath= getPath();
 		IPath resolvedPath= getResolvedPath(currPath);
 		File initialSelection= resolvedPath != null ? resolvedPath.toFile() : null;

 		String currVariable= currPath.segment(0);
 		JARFileSelectionDialog dialog= new JARFileSelectionDialog(getShell(), false, false);
 		dialog.setTitle(NewWizardMessages.EditVariableEntryDialog_extvardialog_title);
 		dialog.setMessage(NewWizardMessages.EditVariableEntryDialog_extvardialog_description);
 		dialog.setInput(fFileVariablePath.toFile());
 		dialog.setInitialSelection(initialSelection);
 		if (dialog.open() == Window.OK) {
 			File result= (File) dialog.getResult()[0];
 			IPath returnPath= Path.fromOSString(result.getPath()).makeAbsolute();
 			return modifyPath(returnPath, currVariable);
 		}
 		return null;
 	}

 	private IPath getResolvedPath(IPath path) {
 		if (path != null) {
 			String varName= path.segment(0);
 			if (varName != null) {
 				IPath varPath= JavaCore.getClasspathVariable(varName);
 				if (varPath != null) {
 					return varPath.append(path.removeFirstSegments(1));
 				}
 			}
 		}
 		return null;
 	}

 	/**
 	 * Takes a path and replaces the beginning with a variable name
 	 * (if the beginning matches with the variables value)
 	 */
 	private IPath modifyPath(IPath path, String varName) {
 		if (varName == null || path == null) {
 			return null;
 		}
 		if (path.isEmpty()) {
 			return new Path(varName);
 		}

 		IPath varPath= JavaCore.getClasspathVariable(varName);
 		if (varPath != null) {
 			if (varPath.isPrefixOf(path)) {
 				path= path.removeFirstSegments(varPath.segmentCount());
 			} else {
 				path= new Path(path.lastSegment());
 			}
 		} else {
 			path= new Path(path.lastSegment());
 		}
 		return new Path(varName).append(path);
 	}

 	private IStatus updateFileNameStatus() {
 		StatusInfo status= new StatusInfo();
 		fFileVariablePath= null;

 		String fileName= fFileNameField.getText();
 		if (fileName.length() == 0) {
 			status.setError(NewWizardMessages.EditVariableEntryDialog_filename_empty);
 			return status;
 		} else {
 			if (!Path.EMPTY.isValidPath(fileName)) {
 				status.setError(NewWizardMessages.EditVariableEntryDialog_filename_error_notvalid);
 				return status;
 			}
 			IPath filePath= Path.fromOSString(fileName);
 			IPath resolvedPath;


 			if (filePath.getDevice() != null) {
 				status.setError(NewWizardMessages.EditVariableEntryDialog_filename_error_deviceinpath);
 				return status;
 			}
 			String varName= filePath.segment(0);
 			if (varName == null) {
 				status.setError(NewWizardMessages.EditVariableEntryDialog_filename_error_notvalid);
 				return status;
 			}
 			fFileVariablePath= JavaCore.getClasspathVariable(varName);
 			if (fFileVariablePath == null) {
 				status.setError(NewWizardMessages.EditVariableEntryDialog_filename_error_varnotexists);
 				return status;
 			}
 			resolvedPath= fFileVariablePath.append(filePath.removeFirstSegments(1));

 			if (resolvedPath.isEmpty()) {
 				status.setWarning(NewWizardMessages.EditVariableEntryDialog_filename_warning_varempty);
 				return status;
 			}
 			File file= resolvedPath.toFile();
 			if (!file.isFile()) {
 				String message= Messages.format(NewWizardMessages.EditVariableEntryDialog_filename_error_filenotexists, resolvedPath.toOSString());
 				status.setInfo(message);
 				return status;
 			}
 		}
 		return status;
 	}

 	private String getResolvedLabelString() {
 		IPath resolvedPath= getResolvedPath(getPath());
 		if (resolvedPath != null) {
 			return resolvedPath.toOSString();
 		}
 		return ""; //$NON-NLS-1$
 	}

 	private boolean canBrowseFileName() {
 		// to browse with a variable JAR, the variable name must point to a directory
 		if (fFileVariablePath != null) {
 			return fFileVariablePath.toFile().isDirectory();
 		}
 		return false;
 	}

 	private void doStatusLineUpdate() {
 		fFileNameField.enableButton(canBrowseFileName());

 		// set the resolved path for variable jars
 		if (fFullPathResolvedLabel != null) {
 			fFullPathResolvedLabel.setText(getResolvedLabelString());
 		}

 		IStatus status= fNameStatus;
 		if (!status.matches(IStatus.ERROR)) {
 			IPath path= getPath();
 			if (fExistingEntries.contains(path)) {
 				String message= NewWizardMessages.EditVariableEntryDialog_filename_error_alreadyexists;
 				status= new StatusInfo(IStatus.ERROR, message);
 			}
 		}
 		updateStatus(status);
 	}


 }
	/*******************************************************************************
	* Copyright (c) 2000, 2005 IBM Corporation 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:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.internal.ui.wizards.buildpaths;

	import java.io.File;
	import java.util.HashSet;
	import java.util.Set;

	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Path;

	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.CLabel;
	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.Shell;

	import org.eclipse.jface.dialogs.StatusDialog;
	import org.eclipse.jface.window.Window;

	import org.eclipse.ui.PlatformUI;

	import org.eclipse.jdt.core.JavaCore;

	import org.eclipse.jdt.internal.corext.util.Messages;

	import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
	import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
	import org.eclipse.jdt.internal.ui.wizards.NewWizardMessages;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.LayoutUtil;

	/**
	*/
	public class EditVariableEntryDialog extends StatusDialog {

	/**
	* The path to which the archive variable points.
	* Null if invalid path or not resolvable. Must not exist.
	*/
	private IPath fFileVariablePath;

	private IStatus fNameStatus;

	private Set fExistingEntries;
	private VariablePathDialogField fFileNameField;
	private CLabel fFullPathResolvedLabel;

	/**
	* Constructor for EditVariableEntryDialog.
	* @param parent
	*/
	public EditVariableEntryDialog(Shell parent, IPath initialEntry, IPath[] existingEntries) {
	super(parent);
	setTitle(NewWizardMessages.EditVariableEntryDialog_title);

	fExistingEntries= new HashSet();
	if (existingEntries != null) {
	for (int i = 0; i < existingEntries.length; i++) {
	IPath curr= existingEntries[i];
	if (!curr.equals(initialEntry)) {
	fExistingEntries.add(curr);
	}
	}
	}

	SourceAttachmentAdapter adapter= new SourceAttachmentAdapter();

	fFileNameField= new VariablePathDialogField(adapter);
	fFileNameField.setDialogFieldListener(adapter);
	fFileNameField.setLabelText(NewWizardMessages.EditVariableEntryDialog_filename_varlabel);
	fFileNameField.setButtonLabel(NewWizardMessages.EditVariableEntryDialog_filename_external_varbutton);
	fFileNameField.setVariableButtonLabel(NewWizardMessages.EditVariableEntryDialog_filename_variable_button);
	String initialString= initialEntry != null ? initialEntry.toString() : ""; //$NON-NLS-1$
	fFileNameField.setText(initialString);
	}

	public IPath getPath() {
	return Path.fromOSString(fFileNameField.getText());
	}


	/* (non-Javadoc)
	* @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
	*/
	protected Control createDialogArea(Composite parent) {
	initializeDialogUnits(parent);
	Composite composite= (Composite) super.createDialogArea(parent);

	GridLayout layout= (GridLayout) composite.getLayout();
	layout.numColumns= 3;

	int widthHint= convertWidthInCharsToPixels(50);

	GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
	gd.horizontalSpan= 3;

	// archive name field
	fFileNameField.doFillIntoGrid(composite, 4);
	LayoutUtil.setHorizontalSpan(fFileNameField.getLabelControl(null), 3);
	LayoutUtil.setWidthHint(fFileNameField.getTextControl(null), widthHint);
	LayoutUtil.setHorizontalGrabbing(fFileNameField.getTextControl(null));

	// label that shows the resolved path for variable jars
	//DialogField.createEmptySpace(composite, 1);
	fFullPathResolvedLabel= new CLabel(composite, SWT.LEFT);
	fFullPathResolvedLabel.setText(getResolvedLabelString());
	fFullPathResolvedLabel.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
	DialogField.createEmptySpace(composite, 2);


	fFileNameField.postSetFocusOnDialogField(parent.getDisplay());

	PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IJavaHelpContextIds.SOURCE_ATTACHMENT_BLOCK);
	applyDialogFont(composite);
	return composite;
	}

	private class SourceAttachmentAdapter implements IStringButtonAdapter, IDialogFieldListener {

	// -------- IStringButtonAdapter --------
	public void changeControlPressed(DialogField field) {
	attachmentChangeControlPressed(field);
	}

	// ---------- IDialogFieldListener --------
	public void dialogFieldChanged(DialogField field) {
	attachmentDialogFieldChanged(field);
	}
	}

	private void attachmentChangeControlPressed(DialogField field) {
	if (field == fFileNameField) {
	IPath jarFilePath= chooseExtJarFile();
	if (jarFilePath != null) {
	fFileNameField.setText(jarFilePath.toString());
	}
	}
	}

	// ---------- IDialogFieldListener --------

	private void attachmentDialogFieldChanged(DialogField field) {
	if (field == fFileNameField) {
	fNameStatus= updateFileNameStatus();
	}
	doStatusLineUpdate();
	}


	private IPath chooseExtJarFile() {
	IPath currPath= getPath();
	IPath resolvedPath= getResolvedPath(currPath);
	File initialSelection= resolvedPath != null ? resolvedPath.toFile() : null;

	String currVariable= currPath.segment(0);
	JARFileSelectionDialog dialog= new JARFileSelectionDialog(getShell(), false, false);
	dialog.setTitle(NewWizardMessages.EditVariableEntryDialog_extvardialog_title);
	dialog.setMessage(NewWizardMessages.EditVariableEntryDialog_extvardialog_description);
	dialog.setInput(fFileVariablePath.toFile());
	dialog.setInitialSelection(initialSelection);
	if (dialog.open() == Window.OK) {
	File result= (File) dialog.getResult()[0];
	IPath returnPath= Path.fromOSString(result.getPath()).makeAbsolute();
	return modifyPath(returnPath, currVariable);
	}
	return null;
	}

	private IPath getResolvedPath(IPath path) {
	if (path != null) {
	String varName= path.segment(0);
	if (varName != null) {
	IPath varPath= JavaCore.getClasspathVariable(varName);
	if (varPath != null) {
	return varPath.append(path.removeFirstSegments(1));
	}
	}
	}
	return null;
	}

	/**
	* Takes a path and replaces the beginning with a variable name
	* (if the beginning matches with the variables value)
	*/
	private IPath modifyPath(IPath path, String varName) {
	if (varName == null \|\| path == null) {
	return null;
	}
	if (path.isEmpty()) {
	return new Path(varName);
	}

	IPath varPath= JavaCore.getClasspathVariable(varName);
	if (varPath != null) {
	if (varPath.isPrefixOf(path)) {
	path= path.removeFirstSegments(varPath.segmentCount());
	} else {
	path= new Path(path.lastSegment());
	}
	} else {
	path= new Path(path.lastSegment());
	}
	return new Path(varName).append(path);
	}

	private IStatus updateFileNameStatus() {
	StatusInfo status= new StatusInfo();
	fFileVariablePath= null;

	String fileName= fFileNameField.getText();
	if (fileName.length() == 0) {
	status.setError(NewWizardMessages.EditVariableEntryDialog_filename_empty);
	return status;
	} else {
	if (!Path.EMPTY.isValidPath(fileName)) {
	status.setError(NewWizardMessages.EditVariableEntryDialog_filename_error_notvalid);
	return status;
	}
	IPath filePath= Path.fromOSString(fileName);
	IPath resolvedPath;


	if (filePath.getDevice() != null) {
	status.setError(NewWizardMessages.EditVariableEntryDialog_filename_error_deviceinpath);
	return status;
	}
	String varName= filePath.segment(0);
	if (varName == null) {
	status.setError(NewWizardMessages.EditVariableEntryDialog_filename_error_notvalid);
	return status;
	}
	fFileVariablePath= JavaCore.getClasspathVariable(varName);
	if (fFileVariablePath == null) {
	status.setError(NewWizardMessages.EditVariableEntryDialog_filename_error_varnotexists);
	return status;
	}
	resolvedPath= fFileVariablePath.append(filePath.removeFirstSegments(1));

	if (resolvedPath.isEmpty()) {
	status.setWarning(NewWizardMessages.EditVariableEntryDialog_filename_warning_varempty);
	return status;
	}
	File file= resolvedPath.toFile();
	if (!file.isFile()) {
	String message= Messages.format(NewWizardMessages.EditVariableEntryDialog_filename_error_filenotexists, resolvedPath.toOSString());
	status.setInfo(message);
	return status;
	}
	}
	return status;
	}

	private String getResolvedLabelString() {
	IPath resolvedPath= getResolvedPath(getPath());
	if (resolvedPath != null) {
	return resolvedPath.toOSString();
	}
	return ""; //$NON-NLS-1$
	}

	private boolean canBrowseFileName() {
	// to browse with a variable JAR, the variable name must point to a directory
	if (fFileVariablePath != null) {
	return fFileVariablePath.toFile().isDirectory();
	}
	return false;
	}

	private void doStatusLineUpdate() {
	fFileNameField.enableButton(canBrowseFileName());

	// set the resolved path for variable jars
	if (fFullPathResolvedLabel != null) {
	fFullPathResolvedLabel.setText(getResolvedLabelString());
	}

	IStatus status= fNameStatus;
	if (!status.matches(IStatus.ERROR)) {
	IPath path= getPath();
	if (fExistingEntries.contains(path)) {
	String message= NewWizardMessages.EditVariableEntryDialog_filename_error_alreadyexists;
	status= new StatusInfo(IStatus.ERROR, message);
	}
	}
	updateStatus(status);
	}



	}