/*
* (non-Javadoc)
*
* @see org.eclipse.jdt.internal.ui.browsing.JavaBrowsingPart#createViewer(org.eclipse.swt.widgets.Composite)
*/
protected StructuredViewer createViewer(Composite parent) {
// Creates the viewer of this part dependent on the current layout.
StructuredViewer viewer;
if (isInListState()) viewer = createTableViewer(parent);
else viewer = createTreeViewer(parent);
fWrappedViewer.setViewer(viewer);
return fWrappedViewer;
}
private void createSelectAllAction() {
IActionBars actionBars = getViewSite().getActionBars();
if (isInListState()) {
fSelectAllAction = new SelectAllAction((TableViewer) fWrappedViewer.getViewer());
actionBars.setGlobalActionHandler(ActionFactory.SELECT_ALL.getId(), fSelectAllAction);
} else {
actionBars.setGlobalActionHandler(ActionFactory.SELECT_ALL.getId(), null);
fSelectAllAction = null;
}
actionBars.updateActionBars();
}
private void switchViewer(int state) {
// Indicate which viewer is to be used
if (fCurrViewState == state) return;
else {
fCurrViewState = state;
IPreferenceStore store = DLTKUIPlugin.getDefault().getPreferenceStore();
store.setValue(getViewSite().getId() + TAG_VIEW_STATE, state);
}
// get the information from the existing viewer
StructuredViewer viewer = fWrappedViewer.getViewer();
Object object = viewer.getInput();
ISelection selection = viewer.getSelection();
// create and set up the new viewer
Control control = createViewer(fWrappedViewer.getControl().getParent()).getControl();
setUpViewer(fWrappedViewer);
createSelectAllAction();
// add the selection information from old viewer
fWrappedViewer.setViewerInput(object);
fWrappedViewer.getControl().setFocus();
fWrappedViewer.setSelection(selection, true);
// dispose old viewer
viewer.getContentProvider().dispose();
viewer.getControl().dispose();
// layout the new viewer
if (control != null && !control.isDisposed()) {
control.setVisible(true);
control.getParent().layout(true);
}
}
/*
* Overridden from JavaBrowsingPart to handel LogicalPackages and tree
* structure.
*
* @see org.eclipse.jdt.internal.ui.browsing.JavaBrowsingPart#adjustInputAndSetSelection(org.eclipse.jdt.core.IJavaElement)
*/
void adjustInputAndSetSelection(IModelElement je) {
IModelElement jElementToSelect = findElementToSelect(je);
LogicalPackagesProvider p = (LogicalPackagesProvider) fWrappedViewer.getContentProvider();
Object elementToSelect = jElementToSelect;
if (jElementToSelect != null
&& jElementToSelect.getElementType() == IModelElement.SCRIPT_FOLDER) {
IScriptFolder pkgFragment = (IScriptFolder) jElementToSelect;
elementToSelect = p.findLogicalPackage(pkgFragment);
if (elementToSelect == null) elementToSelect = pkgFragment;
}
IModelElement newInput = findInputForJavaElement(je);
if (elementToSelect == null && !isValidInput(newInput)) setInput(null);
else if (elementToSelect == null || getViewer().testFindItem(elementToSelect) == null) {
// optimization, if you are in the same project but expansion hasn't
// happened
Object input = getViewer().getInput();
if (elementToSelect != null && newInput != null) {
if (newInput.equals(input)) {
getViewer().reveal(elementToSelect);
// Adjust input to selection
} else {
setInput(newInput);
getViewer().reveal(elementToSelect);
}
} else setInput(newInput);
if (elementToSelect instanceof IScriptFolder) {
IScriptFolder pkgFragment = (IScriptFolder) elementToSelect;
elementToSelect = p.findLogicalPackage(pkgFragment);
if (elementToSelect == null) elementToSelect = pkgFragment;
}
}
ISelection selection;
if (elementToSelect != null) selection = new StructuredSelection(elementToSelect);
else selection = StructuredSelection.EMPTY;
setSelection(selection, true);
}
private void setViewerWrapperInput(Object input) {
fWrappedViewer.setViewerInput(input);
}
/**
* Overrides the createContentProvider from JavaBrowsingPart Creates the content provider of this
* part.
*/
protected IContentProvider createContentProvider() {
if (isInListState()) return new PackagesViewFlatContentProvider(fWrappedViewer.getViewer());
else return new PackagesViewHierarchicalContentProvider(fWrappedViewer.getViewer());
}