org.eclipse.ui.ide.IDEEncoding#org.eclipse.jdt.internal.ui.dialogs.StatusInfo源码实例Demo

@Override
protected IStatus typeNameChanged() {
	IPackageFragment packageFragment = getPackageFragment();
	if (packageFragment != null) {
		IResource resource = packageFragment.getResource();
		if (resource instanceof IFolder) {
			IFolder folder = (IFolder) resource;
			if (folder.getFile(getTypeName() + ".xtend").exists()) { //$NON-NLS-1$
				String packageName = ""; //$NON-NLS-1$
				if (!packageFragment.isDefaultPackage()) {
					packageName = packageFragment.getElementName() + "."; //$NON-NLS-1$
				}
				return new StatusInfo(IStatus.ERROR, Messages.TYPE_EXISTS_0 + packageName + getTypeName()
						+ Messages.TYPE_EXISTS_1);
			}
		}
	}
	return super.typeNameChanged();
}
 

private IStatus moduleChanged() {
  StatusInfo status = new StatusInfo();
  module = null;

  moduleField.enableButton(getPackageFragmentRoot() != null
      && getPackageFragmentRoot().exists()
      && JavaProjectUtilities.isJavaProjectNonNullAndExists(getJavaProject())
      && GWTNature.isGWTProject(getJavaProject().getProject()));

  IStatus fieldStatus = moduleField.getStatus();
  if (!fieldStatus.isOK()) {
    status.setError(fieldStatus.getMessage());
    return status;
  }

  // TODO: verify that package is in client source path of module

  module = moduleField.getModule();
  return status;
}
 

@Override
protected IStatus typeNameChanged() {
  IStatus ownerClassNameStatus = super.typeNameChanged();
  if (ownerClassNameStatus.getSeverity() == IStatus.ERROR) {
    return ownerClassNameStatus;
  }

  StatusInfo uiXmlNameStatus = new StatusInfo();
  IPath uiXmlFilePath = getUiXmlFilePath();
  if (uiXmlFilePath != null) {
    // Make sure there's not already a ui.xml file with the same name
    if (ResourcesPlugin.getWorkspace().getRoot().exists(uiXmlFilePath)) {
      uiXmlNameStatus.setError(MessageFormat.format("{0} already exists.",
          uiXmlFilePath.lastSegment()));
    }
  } else {
    // Don't need to worry about this case since the ui.xml path should only
    // be null if the package fragment is invalid, in which case that error
    // will supersede ours.
  }

  return StatusUtil.getMostSevere(new IStatus[] {
      ownerClassNameStatus, uiXmlNameStatus});
}
 

@Override
public void setVisible(boolean visible) {
  super.setVisible(visible);
  pageVisible = visible;

  // Wizards are not allowed to start up with an error message
  if (visible) {
    setFocus();

    if (pageStatus.matches(IStatus.ERROR)) {
      StatusInfo status = new StatusInfo();
      status.setError("");
      pageStatus = status;
    }
  }
}
 

@Override
protected IStatus typeNameChanged() {
	StatusInfo status = (StatusInfo) super.typeNameChanged();
	String message = status.getMessage();

	if (message != null) {
		if (message.startsWith(Messages.format(NewWizardMessages.NewTypeWizardPage_warning_TypeNameDiscouraged, ""))
				|| message.equals(NewWizardMessages.NewTypeWizardPage_error_TypeNameExists)) {
			status.setOK();
		} else if (message
				.startsWith(Messages.format(NewWizardMessages.NewTypeWizardPage_error_InvalidTypeName, ""))
				|| message.equals(NewWizardMessages.NewTypeWizardPage_error_QualifiedName)) {
			status.setError(message.replace("Type name", "Name").replace("Java type name", "name")
					.replace("type name", "name"));
			// errors about *type* names would be confusing here
		}
	}

	return status;
}
 

@Override
protected IStatus typeNameChanged() {
	StatusInfo status = (StatusInfo) super.typeNameChanged();
	String message = status.getMessage();

	if (message != null && message.equals(NewWizardMessages.NewTypeWizardPage_error_EnterTypeName)) {
		status.setError("Filename is empty.");
	}

	if (getPackageFragment() != null && getTypeName() != null) {
		IFolder folder = (IFolder) getPackageFragment().getResource();
		IFile file = folder.getFile(getTypeName() + getSelectedExtension());
		if (file.exists()) {
			status.setError("File already exists.");
		}
	}

	return status;
}
 

/**
 * Validates that the specified number is positive.
 *
 * @param number the number to validate
 * @return The status of the validation
 */
protected static IStatus validatePositiveNumber(final String number) {
	final StatusInfo status= new StatusInfo();
	if (number.length() == 0) {
		status.setError(PreferencesMessages.SpellingPreferencePage_empty_threshold);
	} else {
		try {
			final int value= Integer.parseInt(number);
			if (value < 0) {
				status.setError(Messages.format(PreferencesMessages.SpellingPreferencePage_invalid_threshold, number));
			}
		} catch (NumberFormatException exception) {
			status.setError(Messages.format(PreferencesMessages.SpellingPreferencePage_invalid_threshold, number));
		}
	}
	return status;
}
 

public IStatus validate(Object[] selection) {
	int selectedCount= 0;
	int duplicateCount= 0;
	if (selection != null && selection.length > 0) {

		HashSet<String> signatures= new HashSet<String>(selection.length);
		for (int index= 0; index < selection.length; index++) {
			if (selection[index] instanceof DelegateEntry) {
				DelegateEntry delegateEntry= (DelegateEntry) selection[index];
				if (!signatures.add(getSignature(delegateEntry.delegateMethod)))
					duplicateCount++;
				selectedCount++;
			}
		}
	}
	if (duplicateCount > 0) {
		return new StatusInfo(IStatus.ERROR, duplicateCount == 1
				? ActionMessages.AddDelegateMethodsAction_duplicate_methods_singular
				: Messages.format(ActionMessages.AddDelegateMethodsAction_duplicate_methods_plural, String.valueOf(duplicateCount)));
	}
	return new StatusInfo(IStatus.INFO, Messages.format(ActionMessages.AddDelegateMethodsAction_selectioninfo_more, new Object[] { String.valueOf(selectedCount), String.valueOf(fEntries) }));
}
 

private StatusInfo nameUpdated() {
	StatusInfo status= new StatusInfo();
	String name= fNameField.getText();
	if (name.length() == 0) {
		status.setError(NewWizardMessages.VariableCreationDialog_error_entername);
		return status;
	}
	if (name.trim().length() != name.length()) {
		status.setError(NewWizardMessages.VariableCreationDialog_error_whitespace);
	} else if (!Path.ROOT.isValidSegment(name)) {
		status.setError(NewWizardMessages.VariableCreationDialog_error_invalidname);
	} else if (nameConflict(name)) {
		status.setError(NewWizardMessages.VariableCreationDialog_error_nameexists);
	}
	return status;
}
 

/**
 * Creates a new <code>NewPackageWizardPage</code>
 */
public NewPackageWizardPage() {
	super(PAGE_NAME);

	setTitle(NewWizardMessages.NewPackageWizardPage_title);
	setDescription(NewWizardMessages.NewPackageWizardPage_description);

	fCreatedPackageFragment= null;

	PackageFieldAdapter adapter= new PackageFieldAdapter();

	fPackageDialogField= new StringDialogField();
	fPackageDialogField.setDialogFieldListener(adapter);
	fPackageDialogField.setLabelText(NewWizardMessages.NewPackageWizardPage_package_label);

	fCreatePackageInfoJavaDialogField= new SelectionButtonDialogField(SWT.CHECK);
	fCreatePackageInfoJavaDialogField.setDialogFieldListener(adapter);
	fCreatePackageInfoJavaDialogField.setLabelText(NewWizardMessages.NewPackageWizardPage_package_CreatePackageInfoJava);

	fPackageStatus= new StatusInfo();
}
 

@Override
protected IStatus containerChanged() {
	IStatus status= super.containerChanged();
    IPackageFragmentRoot root= getPackageFragmentRoot();
	if ((fTypeKind == ANNOTATION_TYPE || fTypeKind == ENUM_TYPE) && !status.matches(IStatus.ERROR)) {
    	if (root != null && !JavaModelUtil.is50OrHigher(root.getJavaProject())) {
    		// error as createType will fail otherwise (bug 96928)
			return new StatusInfo(IStatus.ERROR, Messages.format(NewWizardMessages.NewTypeWizardPage_warning_NotJDKCompliant, BasicElementLabels.getJavaElementName(root.getJavaProject().getElementName())));
    	}
    	if (fTypeKind == ENUM_TYPE) {
	    	try {
	    	    // if findType(...) == null then Enum is unavailable
	    	    if (findType(root.getJavaProject(), "java.lang.Enum") == null) //$NON-NLS-1$
	    	        return new StatusInfo(IStatus.WARNING, NewWizardMessages.NewTypeWizardPage_warning_EnumClassNotFound);
	    	} catch (JavaModelException e) {
	    	    JavaPlugin.log(e);
	    	}
    	}
    }

	fCurrPackageCompletionProcessor.setPackageFragmentRoot(root);
	if (root != null) {
		fEnclosingTypeCompletionProcessor.setPackageFragment(root.getPackageFragment("")); //$NON-NLS-1$
	}
	return status;
}
 

/** Adds selected interfaces to the list.
 */
private void fillWizardPageWithSelectedTypes() {
	final StructuredSelection selection = getSelectedItems();
	if (selection == null) {
		return;
	}
	for (final Iterator<?> iter = selection.iterator(); iter.hasNext();) {
		final Object obj = iter.next();
		if (obj instanceof TypeNameMatch) {
			accessedHistoryItem(obj);
			final TypeNameMatch type = (TypeNameMatch) obj;
			final String qualifiedName = Utilities.getNameWithTypeParameters(type.getType());
			final String message;

			if (addTypeToWizardPage(this.typeWizardPage, qualifiedName)) {
				message = MessageFormat.format(Messages.AbstractSuperTypeSelectionDialog_2,
						TextProcessor.process(qualifiedName, JAVA_ELEMENT_DELIMITERS));
			} else {
				message = MessageFormat.format(Messages.AbstractSuperTypeSelectionDialog_3,
						TextProcessor.process(qualifiedName, JAVA_ELEMENT_DELIMITERS));
			}
			updateStatus(new StatusInfo(IStatus.INFO, message));
		}
	}
}
 

/**
 * Validates that the specified number is positive.
 *
 * @param number
 *                   The number to validate
 * @return The status of the validation
 */
protected static IStatus validatePositiveNumber(final String number) {

	final StatusInfo status= new StatusInfo();
	if (number.length() == 0) {
		status.setError(PreferencesMessages.SpellingPreferencePage_empty_threshold);
	} else {
		try {
			final int value= Integer.parseInt(number);
			if (value < 0) {
				status.setError(Messages.format(PreferencesMessages.SpellingPreferencePage_invalid_threshold, number));
			}
		} catch (NumberFormatException exception) {
			status.setError(Messages.format(PreferencesMessages.SpellingPreferencePage_invalid_threshold, number));
		}
	}
	return status;
}
 

private void addSelectedInterfaces() {
	StructuredSelection selection= getSelectedItems();
	if (selection == null)
		return;
	for (Iterator<?> iter= selection.iterator(); iter.hasNext();) {
		Object obj= iter.next();
		if (obj instanceof TypeNameMatch) {
			accessedHistoryItem(obj);
			TypeNameMatch type= (TypeNameMatch) obj;
			String qualifiedName= getNameWithTypeParameters(type.getType());
			String message;

			if (fTypeWizardPage.addSuperInterface(qualifiedName)) {
				message= Messages.format(NewWizardMessages.SuperInterfaceSelectionDialog_interfaceadded_info, BasicElementLabels.getJavaElementName(qualifiedName));
			} else {
				message= Messages.format(NewWizardMessages.SuperInterfaceSelectionDialog_interfacealreadyadded_info, BasicElementLabels.getJavaElementName(qualifiedName));
			}
			updateStatus(new StatusInfo(IStatus.INFO, message));
		}
	}
}
 

@Override
public void updateStatus(IStatus status) {
	int count= 0;
	for (int i= 0; i < fPages.length; i++) {
		count+= fPages[i].getSelectedCleanUpCount();
	}
	if (count == 0) {
		super.updateStatus(new Status(IStatus.ERROR, JavaUI.ID_PLUGIN, getEmptySelectionMessage()));
	} else {
		if (status == null) {
			super.updateStatus(StatusInfo.OK_STATUS);
		} else {
			super.updateStatus(status);
		}
	}
}
 

public IStatus validate(Object[] selection) {
	int nSelected= selection.length;
	if (nSelected == 0 || (nSelected > 1 && !fMultiSelect)) {
		return new StatusInfo(IStatus.ERROR, "");  //$NON-NLS-1$
	}
	for (int i= 0; i < selection.length; i++) {
		Object curr= selection[i];
		if (curr instanceof File) {
			File file= (File) curr;
			if (!fAcceptFolders && !file.isFile()) {
				return new StatusInfo(IStatus.ERROR, "");  //$NON-NLS-1$
			}
		}
	}
	return new StatusInfo();
}
 

/** Update the status of this page according to the given exception.
 *
 * @param event the exception.
 */
private void updateStatus(Throwable event) {
	Throwable cause = event;
	while (cause != null
			&& (!(cause instanceof CoreException))
			&& cause.getCause() != null
			&& cause.getCause() != cause) {
		cause = cause.getCause();
	}
	if (cause instanceof CoreException) {
		updateStatus(((CoreException) cause).getStatus());
	} else {
		final String message;
		if (cause != null) {
			message = cause.getLocalizedMessage();
		} else {
			message = event.getLocalizedMessage();
		}
		final IStatus status = new StatusInfo(IStatus.ERROR, message);
		updateStatus(status);
	}
}
 

private void validatePath() {
	StatusInfo status= new StatusInfo();
	String str= fEntryField.getText();
	if (str.length() == 0) {
		status.setError(NewWizardMessages.ClasspathContainerDefaultPage_path_error_enterpath);
	} else if (!Path.ROOT.isValidPath(str)) {
		status.setError(NewWizardMessages.ClasspathContainerDefaultPage_path_error_invalidpath);
	} else {
		IPath path= new Path(str);
		if (path.segmentCount() == 0) {
			status.setError(NewWizardMessages.ClasspathContainerDefaultPage_path_error_needssegment);
		} else if (fUsedPaths.contains(path)) {
			status.setError(NewWizardMessages.ClasspathContainerDefaultPage_path_error_alreadyexists);
		}
	}
	updateStatus(status);
}
 

private IStatus updateShownLibraries(IStatus status) {
	if (!status.isOK()) {
		fExportImportList.removeAllElements();
		fExportImportList.setEnabled(false);
		fLastFile= null;
	} else {
		File file= new File(fLocationField.getText());
		if (!file.equals(fLastFile)) {
			fLastFile= file;
			try {
				List<CPUserLibraryElement> elements= loadLibraries(file);
				fExportImportList.setElements(elements);
				fExportImportList.checkAll(true);
				fExportImportList.setEnabled(true);
				if (elements.isEmpty()) {
					return new StatusInfo(IStatus.ERROR, PreferencesMessages.UserLibraryPreferencePage_LoadSaveDialog_error_empty);
				}
			} catch (IOException e) {
				fExportImportList.removeAllElements();
				fExportImportList.setEnabled(false);
				return new StatusInfo(IStatus.ERROR, PreferencesMessages.UserLibraryPreferencePage_LoadSaveDialog_error_invalidfile);
			}
		}
	}
	return status;
}
 

private IStatus validateIdentifiers(String[] values, boolean prefix) {
	for (int i= 0; i < values.length; i++) {
		String val= values[i];
		if (val.length() == 0) {
			if (prefix) {
				return new StatusInfo(IStatus.ERROR, PreferencesMessages.NameConventionConfigurationBlock_error_emptyprefix);
			} else {
				return new StatusInfo(IStatus.ERROR, PreferencesMessages.NameConventionConfigurationBlock_error_emptysuffix);
			}
		}
		String name= prefix ? val + "x" : "x" + val; //$NON-NLS-2$ //$NON-NLS-1$
		IStatus status= JavaConventions.validateIdentifier(name, JavaCore.VERSION_1_3, JavaCore.VERSION_1_3);
		if (status.matches(IStatus.ERROR)) {
			if (prefix) {
				return new StatusInfo(IStatus.ERROR, Messages.format(PreferencesMessages.NameConventionConfigurationBlock_error_invalidprefix, val));
			} else {
				return new StatusInfo(IStatus.ERROR, Messages.format(PreferencesMessages.NameConventionConfigurationBlock_error_invalidsuffix, val));
			}
		}
	}
	return new StatusInfo();
}
 

private IStatus validateSettings() {
	String name= fNameField.getText();
	if (name.length() == 0) {
		return new StatusInfo(IStatus.ERROR, PreferencesMessages.UserLibraryPreferencePage_LibraryNameDialog_name_error_entername);
	}
	for (int i= 0; i < fExistingLibraries.size(); i++) {
		CPUserLibraryElement curr= fExistingLibraries.get(i);
		if (curr != fElementToEdit && name.equals(curr.getName())) {
			return new StatusInfo(IStatus.ERROR, Messages.format(PreferencesMessages.UserLibraryPreferencePage_LibraryNameDialog_name_error_exists, name));
		}
	}
	IStatus status= ResourcesPlugin.getWorkspace().validateName(name, IResource.FILE);
	if (status.matches(IStatus.ERROR)) {
		return new StatusInfo(IStatus.ERROR, "Name contains invalid characters."); //$NON-NLS-1$
	}
	return StatusInfo.OK_STATUS;
}
 

private void doValidate() {
  	String name= fProfileNameField.getText().trim();
if (name.equals(fProfile.getName()) && fProfile.hasEqualSettings(fWorkingValues, fWorkingValues.keySet())) {
	updateStatus(StatusInfo.OK_STATUS);
	return;
}

  	IStatus status= validateProfileName();
  	if (status.matches(IStatus.ERROR)) {
  		updateStatus(status);
  		return;
  	}

if (!name.equals(fProfile.getName()) && fProfileManager.containsName(name)) {
	updateStatus(new Status(IStatus.ERROR, JavaUI.ID_PLUGIN, FormatterMessages.ModifyDialog_Duplicate_Status));
	return;
}

if (fProfile.isBuiltInProfile() || fProfile.isSharedProfile()) {
	updateStatus(new Status(IStatus.INFO, JavaUI.ID_PLUGIN, FormatterMessages.ModifyDialog_NewCreated_Status));
	return;
}

   updateStatus(StatusInfo.OK_STATUS);
  }
 

@Override
protected void validateSettings(Key changedKey, String oldValue, String newValue) {
	if (!areSettingsEnabled()) {
		return;
	}

	if (changedKey != null) {
		if (PREF_PB_INVALID_JAVADOC.equals(changedKey) ||
				PREF_PB_MISSING_JAVADOC_TAGS.equals(changedKey) ||
				PREF_PB_MISSING_JAVADOC_COMMENTS.equals(changedKey) ||
				PREF_JAVADOC_SUPPORT.equals(changedKey) ||
				PREF_PB_INVALID_JAVADOC_TAGS.equals(changedKey)) {
			updateEnableStates();
		} else {
			return;
		}
	} else {
		updateEnableStates();
	}
	fContext.statusChanged(new StatusInfo());
}
 

private IStatus updateURLStatus() {
	StatusInfo status= new StatusInfo();
	fURLResult= null;
	try {
		String jdocLocation= fURLField.getText();
		if (jdocLocation.length() == 0) {
			return status;
		}
		URL url= new URL(jdocLocation);
		if ("file".equals(url.getProtocol())) { //$NON-NLS-1$
			if (url.getFile() == null) {
				status.setError(PreferencesMessages.JavadocConfigurationBlock_error_notafolder);
				return status;
			}
		}
		fURLResult= url;
	} catch (MalformedURLException e) {
		status.setError(PreferencesMessages.JavadocConfigurationBlock_MalformedURL_error);
		return status;
	}

	return status;
}
 

private StatusInfo pathUpdated() {
	StatusInfo status= new StatusInfo();

	String path= fPathField.getText();
	if (path.length() > 0) { // empty path is ok
		if (!Path.ROOT.isValidPath(path)) {
			status.setError(NewWizardMessages.VariableCreationDialog_error_invalidpath);
		} else if (!new File(path).exists()) {
			status.setWarning(NewWizardMessages.VariableCreationDialog_warning_pathnotexists);
		}
	}
	return status;
}
 

@Override
protected void validateSettings(Key changedKey, String oldValue, String newValue) {
	if (!areSettingsEnabled()) {
		return;
	}
	fContext.statusChanged(new StatusInfo());
}
 

private void validateInput() {
    StatusInfo status = new StatusInfo();
    if (!isIntValid(fMaxCallDepth.getText())) {
        status.setError("Invalid input: expecting a number between 1 and 99");
    }
    if (!isIntValid(fMaxCallers.getText())) {
        status.setError("Invalid input: expecting a number between 1 and 99");
    }
    updateStatus(status);
}
 

/**
 * Constructor for NewCheckProjectWizardPage.
 * 
 * @param selection
 */
@Inject
public NewCheckProjectWizardPage() {
  super(NewTypeWizardPage.CLASS_TYPE, "NewCheckProjectWizardPage");
  setTitle(Messages.PROJECT_WIZARD_TITLE);
  setDescription(Messages.PROJECT_WIZARD_DESCRIPTION);
  projectName = new StringDialogField();
  projectNameStatus = new StatusInfo();
}
 

/**
 * Instantiates a new new check catalog wizard page.
 */
@Inject
public NewCheckCatalogWizardPage() {
  super(NewTypeWizardPage.CLASS_TYPE, "NewCheckCatalogWizardPage");
  setTitle(Messages.CATALOG_WIZARD_TITLE);
  setDescription(Messages.CATALOG_WIZARD_DESCRIPTION);
  projectInfo = new CheckProjectInfo();
  grammarStatus = new StatusInfo();
}
 

public ModuleSelectionDialogButtonField(WizardPage page,
    IDialogFieldListener changeListener) {
  super();
  this.page = page;
  this.browseButtonEnabled = true;
  setDialogFieldListener(changeListener);
  setContentAssistProcessor(new ModuleCompletionProcessor());

  status = new StatusInfo();
}