/**
* Called by {@link NewXmlFileWizard} to initialize the page with the selection received by the
* wizard -- typically the current user workbench selection.
*
* <p>Things we expect to find out from the selection:
*
* <ul>
* <li>The project name, valid if it's an android nature.
* <li>The current folder, valid if it's a folder under /res
* <li>An existing filename, in which case the user will be asked whether to override it.
* </ul>
*
* <p>The selection can also be set to a {@link Pair} of {@link IProject} and a workspace resource
* path (where the resource path does not have to exist yet, such as res/anim/).
*
* @param selection The selection when the wizard was initiated.
*/
private boolean initializeFromSelection(IStructuredSelection selection) {
if (selection == null) {
return false;
}
// Find the best match in the element list. In case there are multiple selected elements
// select the one that provides the most information and assign them a score,
// e.g. project=1 + folder=2 + file=4.
IProject targetProject = null;
String targetWsFolderPath = null;
String targetFileName = null;
int targetScore = 0;
for (Object element : selection.toList()) {
if (element instanceof IAdaptable) {
IResource res = (IResource) ((IAdaptable) element).getAdapter(IResource.class);
IProject project = res != null ? res.getProject() : null;
// Is this an Android project?
try {
if (project == null || !project.hasNature(AdtConstants.NATURE_DEFAULT)) {
continue;
}
} catch (CoreException e) {
// checking the nature failed, ignore this resource
continue;
}
int score = 1; // we have a valid project at least
IPath wsFolderPath = null;
String fileName = null;
assert res != null; // Eclipse incorrectly thinks res could be null, so tell it no
if (res.getType() == IResource.FOLDER) {
wsFolderPath = res.getProjectRelativePath();
} else if (res.getType() == IResource.FILE) {
if (SdkUtils.endsWithIgnoreCase(res.getName(), DOT_XML)) {
fileName = res.getName();
}
wsFolderPath = res.getParent().getProjectRelativePath();
}
// Disregard this folder selection if it doesn't point to /res/something
if (wsFolderPath != null
&& wsFolderPath.segmentCount() > 1
&& SdkConstants.FD_RESOURCES.equals(wsFolderPath.segment(0))) {
score += 2;
} else {
wsFolderPath = null;
fileName = null;
}
score += fileName != null ? 4 : 0;
if (score > targetScore) {
targetScore = score;
targetProject = project;
targetWsFolderPath = wsFolderPath != null ? wsFolderPath.toString() : null;
targetFileName = fileName;
}
} else if (element instanceof Pair<?, ?>) {
// Pair of Project/String
@SuppressWarnings("unchecked")
Pair<IProject, String> pair = (Pair<IProject, String>) element;
targetScore = 1;
targetProject = pair.getFirst();
targetWsFolderPath = pair.getSecond();
targetFileName = "";
}
}
if (targetProject == null) {
// Try to figure out the project from the active editor
IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if (window != null) {
IWorkbenchPage page = window.getActivePage();
if (page != null) {
IEditorPart activeEditor = page.getActiveEditor();
if (activeEditor instanceof AndroidXmlEditor) {
Object input = ((AndroidXmlEditor) activeEditor).getEditorInput();
if (input instanceof FileEditorInput) {
FileEditorInput fileInput = (FileEditorInput) input;
targetScore = 1;
IFile file = fileInput.getFile();
targetProject = file.getProject();
IPath path = file.getParent().getProjectRelativePath();
targetWsFolderPath = path != null ? path.toString() : null;
}
}
}
}
}
if (targetProject == null) {
// If we didn't find a default project based on the selection, check how many
// open Android projects we can find in the current workspace. If there's only
// one, we'll just select it by default.
IJavaProject[] projects = AdtUtils.getOpenAndroidProjects();
if (projects != null && projects.length == 1) {
targetScore = 1;
targetProject = projects[0].getProject();
}
}
// Now set the UI accordingly
if (targetScore > 0) {
mValues.project = targetProject;
mValues.folderPath = targetWsFolderPath;
mProjectButton.setSelectedProject(targetProject);
mFileNameTextField.setText(targetFileName != null ? targetFileName : ""); // $NON-NLS-1$
// If the current selection context corresponds to a specific file type,
// select it.
if (targetWsFolderPath != null) {
int pos = targetWsFolderPath.lastIndexOf(WS_SEP_CHAR);
if (pos >= 0) {
targetWsFolderPath = targetWsFolderPath.substring(pos + 1);
}
String[] folderSegments = targetWsFolderPath.split(RES_QUALIFIER_SEP);
if (folderSegments.length > 0) {
mValues.configuration = FolderConfiguration.getConfig(folderSegments);
String folderName = folderSegments[0];
selectTypeFromFolder(folderName);
}
}
}
return true;
}
/**
* Called by the parent Wizard to create the UI for this Wizard Page.
*
* <p>{@inheritDoc}
*
* @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
*/
@Override
@SuppressWarnings("unused") // SWT constructors have side effects, they aren't unused
public void createControl(Composite parent) {
// This UI is maintained with WindowBuilder.
Composite composite = new Composite(parent, SWT.NULL);
composite.setLayout(new GridLayout(2, false /*makeColumnsEqualWidth*/));
composite.setLayoutData(new GridData(GridData.FILL_BOTH));
// label before type radios
Label typeLabel = new Label(composite, SWT.NONE);
typeLabel.setText("Resource Type:");
mTypeCombo = new Combo(composite, SWT.DROP_DOWN | SWT.READ_ONLY);
mTypeCombo.setToolTipText("What type of resource would you like to create?");
mTypeCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
if (mInitialFolderType != null) {
mTypeCombo.setEnabled(false);
}
mTypeCombo.addSelectionListener(
new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
TypeInfo type = getSelectedType();
if (type != null) {
onSelectType(type);
}
}
});
// separator
Label separator = new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL);
GridData gd2 = new GridData(GridData.GRAB_HORIZONTAL);
gd2.horizontalAlignment = SWT.FILL;
gd2.horizontalSpan = 2;
separator.setLayoutData(gd2);
// Project: [button]
String tooltip = "The Android Project where the new resource file will be created.";
Label projectLabel = new Label(composite, SWT.NONE);
projectLabel.setText("Project:");
projectLabel.setToolTipText(tooltip);
ProjectChooserHelper helper = new ProjectChooserHelper(getShell(), null /* filter */);
mProjectButton = new ProjectCombo(helper, composite, mValues.project);
mProjectButton.setToolTipText(tooltip);
mProjectButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
mProjectButton.addSelectionListener(
new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
IProject project = mProjectButton.getSelectedProject();
if (project != mValues.project) {
changeProject(project);
}
};
});
// Filename: [text]
Label fileLabel = new Label(composite, SWT.NONE);
fileLabel.setText("File:");
fileLabel.setToolTipText("The name of the resource file to create.");
mFileNameTextField = new Text(composite, SWT.BORDER);
mFileNameTextField.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
mFileNameTextField.setToolTipText(tooltip);
mFileNameTextField.addModifyListener(
new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
mValues.name = mFileNameTextField.getText();
validatePage();
}
});
// separator
Label rootSeparator = new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL);
GridData gd = new GridData(GridData.GRAB_HORIZONTAL);
gd.horizontalAlignment = SWT.FILL;
gd.horizontalSpan = 2;
rootSeparator.setLayoutData(gd);
// Root Element:
// [TableViewer]
Label rootLabel = new Label(composite, SWT.NONE);
rootLabel.setText("Root Element:");
new Label(composite, SWT.NONE);
mRootTableViewer = new TableViewer(composite, SWT.BORDER | SWT.FULL_SELECTION);
mRootTable = mRootTableViewer.getTable();
GridData tableGridData = new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1);
tableGridData.heightHint = 200;
mRootTable.setLayoutData(tableGridData);
setControl(composite);
// Update state the first time
setErrorMessage(null);
setMessage(null);
initializeFromSelection(mInitialSelection);
updateAvailableTypes();
initializeFromFixedType();
initializeRootValues();
installTargetChangeListener();
initialSelectType();
validatePage();
}