NewContainerWizardPage
*
* @param name
* the wizard page's name
*/
public NewContainerWizardPage(String name) {
super(name);
fWorkspaceRoot = ResourcesPlugin.getWorkspace().getRoot();
ContainerFieldAdapter adapter = new ContainerFieldAdapter();
fContainerDialogField = new StringButtonDialogField(adapter);
fContainerDialogField.setDialogFieldListener(adapter);
fContainerDialogField.setLabelText(NewWizardMessages
.getString("NewContainerWizardPage.container.label")); //$NON-NLS-1$
fContainerDialogField.setButtonLabel(NewWizardMessages
.getString("NewContainerWizardPage.container.button")); //$NON-NLS-1$
fContainerStatus = new StatusInfo();
fCurrRoot = null;
}
/**
* Initializes the source folder field with a valid package fragement root.
* The package fragement root is computed from the given Java element.
*
* @param elem
* the Java element used to compute the initial package fragment
* root used as the source folder
*/
protected void initContainerPage(IJavaElement elem) {
IPackageFragmentRoot initRoot = null;
// if (elem != null) {
// initRoot= JavaModelUtil.getPackageFragmentRoot(elem);
// if (initRoot == null || initRoot.isArchive()) {
// IJavaProject jproject= elem.getJavaProject();
// if (jproject != null) {
// try {
// initRoot= null;
// if (jproject.exists()) {
// IPackageFragmentRoot[] roots= jproject.getPackageFragmentRoots();
// for (int i= 0; i < roots.length; i++) {
// if (roots[i].getKind() == IPackageFragmentRoot.K_SOURCE) {
// initRoot= roots[i];
// break;
// }
// }
// }
// } catch (JavaModelException e) {
// PHPeclipsePlugin.log(e);
// }
// if (initRoot == null) {
// initRoot= jproject.getPackageFragmentRoot(jproject.getResource());
// }
// }
// }
// }
// setPackageFragmentRoot(initRoot, true);
}
/**
* Utility method to inspect a selection to find a Java element.
*
* @param selection
* the selection to be inspected
* @return a Java element to be used as the initial selection, or
* null, if no Java element exists in the given
* selection
*/
protected IJavaElement getInitialJavaElement(IStructuredSelection selection) {
IJavaElement jelem = null;
if (selection != null && !selection.isEmpty()) {
Object selectedElement = selection.getFirstElement();
if (selectedElement instanceof IAdaptable) {
IAdaptable adaptable = (IAdaptable) selectedElement;
jelem = (IJavaElement) adaptable.getAdapter(IJavaElement.class);
if (jelem == null) {
IResource resource = (IResource) adaptable
.getAdapter(IResource.class);
if (resource != null
&& resource.getType() != IResource.ROOT) {
while (jelem == null
&& resource.getType() != IResource.PROJECT) {
resource = resource.getParent();
jelem = (IJavaElement) resource
.getAdapter(IJavaElement.class);
}
if (jelem == null) {
jelem = JavaCore.create(resource); // java project
}
}
}
}
}
if (jelem == null) {
IWorkbenchPart part = WebUI.getActivePage()
.getActivePart();
if (part instanceof ContentOutline) {
part = WebUI.getActivePage().getActiveEditor();
}
if (part instanceof IViewPartInputProvider) {
Object elem = ((IViewPartInputProvider) part)
.getViewPartInput();
if (elem instanceof IJavaElement) {
jelem = (IJavaElement) elem;
}
}
}
if (jelem == null || jelem.getElementType() == IJavaElement.JAVA_MODEL) {
try {
IJavaProject[] projects = JavaCore.create(getWorkspaceRoot())
.getJavaProjects();
if (projects.length == 1) {
jelem = projects[0];
}
} catch (JavaModelException e) {
PHPeclipsePlugin.log(e);
}
}
return jelem;
}
/**
* Returns the recommended maximum width for text fields (in pixels). This
* method requires that createContent has been called before this method is
* call. Subclasses may override to change the maximum width for text
* fields.
*
* @return the recommended maximum width for text fields.
*/
protected int getMaxFieldWidth() {
return convertWidthInCharsToPixels(40);
}
/**
* Creates the necessary controls (label, text field and browse button) to
* edit the source folder location. The method expects that the parent
* composite uses a GridLayout as its layout manager and that
* the grid layout has at least 3 columns.
*
* @param parent
* the parent composite
* @param nColumns
* the number of columns to span. This number must be greater or
* equal three
*/
protected void createContainerControls(Composite parent, int nColumns) {
fContainerDialogField.doFillIntoGrid(parent, nColumns);
LayoutUtil.setWidthHint(fContainerDialogField.getTextControl(null),
getMaxFieldWidth());
}
/**
* Sets the focus to the source folder's text field.
*/
protected void setFocusOnContainer() {
fContainerDialogField.setFocus();
}
// -------- ContainerFieldAdapter --------
private class ContainerFieldAdapter implements IStringButtonAdapter,
IDialogFieldListener {
// -------- IStringButtonAdapter
public void changeControlPressed(DialogField field) {
containerChangeControlPressed(field);
}
// -------- IDialogFieldListener
public void dialogFieldChanged(DialogField field) {
containerDialogFieldChanged(field);
}
}
private void containerChangeControlPressed(DialogField field) {
// take the current jproject as init element of the dialog
// IPackageFragmentRoot root= getPackageFragmentRoot();
// root= chooseSourceContainer(root);
// if (root != null) {
// setPackageFragmentRoot(root, true);
// }
}
private void containerDialogFieldChanged(DialogField field) {
if (field == fContainerDialogField) {
fContainerStatus = containerChanged();
}
// tell all others
handleFieldChanged(CONTAINER);
}
// ----------- validation ----------
/**
* This method is a hook which gets called after the source folder's text
* input field has changed. This default implementation updates the model
* and returns an error status. The underlying model is only valid if the
* returned status is OK.
*
* @return the model's error status
*/
protected IStatus containerChanged() {
StatusInfo status = new StatusInfo();
fCurrRoot = null;
String str = getPackageFragmentRootText();
if (str.length() == 0) {
status
.setError(NewWizardMessages
.getString("NewContainerWizardPage.error.EnterContainerName")); //$NON-NLS-1$
return status;
}
IPath path = new Path(str);
IResource res = fWorkspaceRoot.findMember(path);
if (res != null) {
int resType = res.getType();
if (resType == IResource.PROJECT || resType == IResource.FOLDER) {
IProject proj = res.getProject();
if (!proj.isOpen()) {
status
.setError(NewWizardMessages
.getFormattedString(
"NewContainerWizardPage.error.ProjectClosed", proj.getFullPath().toString())); //$NON-NLS-1$
return status;
}
IJavaProject jproject = JavaCore.create(proj);
// fCurrRoot= jproject.getPackageFragmentRoot(res);
// if (res.exists()) {
// try {
// if (!proj.hasNature(JavaCore.NATURE_ID)) {
// if (resType == IResource.PROJECT) {
// status.setError(NewWizardMessages.getString("NewContainerWizardPage.warning.NotAJavaProject"));
// //$NON-NLS-1$
// } else {
// status.setWarning(NewWizardMessages.getString("NewContainerWizardPage.warning.NotInAJavaProject"));
// //$NON-NLS-1$
// }
// return status;
// }
// } catch (CoreException e) {
// status.setWarning(NewWizardMessages.getString("NewContainerWizardPage.warning.NotAJavaProject"));
// //$NON-NLS-1$
// }
// if (!jproject.isOnClasspath(fCurrRoot)) {
// status.setWarning(NewWizardMessages.getFormattedString("NewContainerWizardPage.warning.NotOnClassPath",
// str)); //$NON-NLS-1$
// }
// if (fCurrRoot.isArchive()) {
// status.setError(NewWizardMessages.getFormattedString("NewContainerWizardPage.error.ContainerIsBinary",
// str)); //$NON-NLS-1$
// return status;
// }
// }
return status;
} else {
status.setError(NewWizardMessages.getFormattedString(
"NewContainerWizardPage.error.NotAFolder", str)); //$NON-NLS-1$
return status;
}
} else {
status.setError(NewWizardMessages.getFormattedString(
"NewContainerWizardPage.error.ContainerDoesNotExist", str)); //$NON-NLS-1$
return status;
}
}
// -------- update message ----------------
/**
* Hook method that gets called when a field on this page has changed. For
* this page the method gets called when the source folder field changes.
*
* Every sub type is responsible to call this method when a field on its
* page has changed. Subtypes override (extend) the method to add
* verification when a own field has a dependency to an other field. For
* example the class name input must be verified again when the package
* field changes (check for duplicated class names).
*
* @param fieldName
* The name of the field that has changed (field id). For the
* source folder the field id is CONTAINER
*/
protected void handleFieldChanged(String fieldName) {
}
// ---- get ----------------
/**
* Returns the workspace root.
*
* @return the workspace root
*/
protected IWorkspaceRoot getWorkspaceRoot() {
return fWorkspaceRoot;
}
/**
* Returns the IPackageFragmentRoot that corresponds to the
* current value of the source folder field.
*
* @return the IPackageFragmentRoot or null if the current
* source folder value is not a valid package fragment root
*
*/
public IPackageFragmentRoot getPackageFragmentRoot() {
return fCurrRoot;
}
/**
* Returns the current text of source folder text field.
*
* @return the text of the source folder text field
*/
public String getPackageFragmentRootText() {
return fContainerDialogField.getText();
}
/**
* Sets the current source folder (model and text field) to the given
* package fragment root.
*
* @param canBeModified
* if false the source folder field can not be
* changed by the user. If true the field is
* editable
*/
// public void setPackageFragmentRoot(IPackageFragmentRoot root, boolean
// canBeModified) {
// fCurrRoot= root;
// String str= (root == null) ? "" :
// root.getPath().makeRelative().toString(); //$NON-NLS-1$
// fContainerDialogField.setText(str);
// fContainerDialogField.setEnabled(canBeModified);
// }
// ------------- choose source container dialog
// private IPackageFragmentRoot chooseSourceContainer(IJavaElement
// initElement) {
// Class[] acceptedClasses= new Class[] { IPackageFragmentRoot.class,
// IJavaProject.class };
// TypedElementSelectionValidator validator= new
// TypedElementSelectionValidator(acceptedClasses, false) {
// public boolean isSelectedValid(Object element) {
// try {
// if (element instanceof IJavaProject) {
// IJavaProject jproject= (IJavaProject)element;
// IPath path= jproject.getProject().getFullPath();
// return (jproject.findPackageFragmentRoot(path) != null);
// } else if (element instanceof IPackageFragmentRoot) {
// return (((IPackageFragmentRoot)element).getKind() ==
// IPackageFragmentRoot.K_SOURCE);
// }
// return true;
// } catch (JavaModelException e) {
// PHPeclipsePlugin.log(e.getStatus()); // just log, no ui in validation
// }
// return false;
// }
// };
//
// acceptedClasses= new Class[] { IJavaModel.class,
// IPackageFragmentRoot.class, IJavaProject.class };
// ViewerFilter filter= new TypedViewerFilter(acceptedClasses) {
// public boolean select(Viewer viewer, Object parent, Object element) {
// if (element instanceof IPackageFragmentRoot) {
// try {
// return (((IPackageFragmentRoot)element).getKind() ==
// IPackageFragmentRoot.K_SOURCE);
// } catch (JavaModelException e) {
// PHPeclipsePlugin.log(e.getStatus()); // just log, no ui in validation
// return false;
// }
// }
// return super.select(viewer, parent, element);
// }
// };
//
// StandardJavaElementContentProvider provider= new
// StandardJavaElementContentProvider();
// ILabelProvider labelProvider= new
// JavaElementLabelProvider(JavaElementLabelProvider.SHOW_DEFAULT);
// ElementTreeSelectionDialog dialog= new
// ElementTreeSelectionDialog(getShell(), labelProvider, provider);
// dialog.setValidator(validator);
// dialog.setSorter(new JavaElementSorter());
// dialog.setTitle(NewWizardMessages.getString("NewContainerWizardPage.ChooseSourceContainerDialog.title"));
// //$NON-NLS-1$
// dialog.setMessage(NewWizardMessages.getString("NewContainerWizardPage.ChooseSourceContainerDialog.description"));
// //$NON-NLS-1$
// dialog.addFilter(filter);
// dialog.setInput(JavaCore.create(fWorkspaceRoot));
// dialog.setInitialSelection(initElement);
//
// if (dialog.open() == ElementTreeSelectionDialog.OK) {
// Object element= dialog.getFirstResult();
// if (element instanceof IJavaProject) {
// IJavaProject jproject= (IJavaProject)element;
// return jproject.getPackageFragmentRoot(jproject.getProject());
// } else if (element instanceof IPackageFragmentRoot) {
// return (IPackageFragmentRoot)element;
// }
// return null;
// }
// return null;
// }
}