private void informUserModal(CompletionProposalComputerDescriptor descriptor, IStatus status) {
String title = DartTextMessages.CompletionProposalComputerRegistry_error_dialog_title;
CompletionProposalCategory category = descriptor.getCategory();
IContributor culprit = descriptor.getContributor();
Set affectedPlugins = getAffectedContributors(category, culprit);
final String avoidHint;
final String culpritName = culprit == null ? null : culprit.getName();
if (affectedPlugins.isEmpty()) {
avoidHint =
Messages.format(
DartTextMessages.CompletionProposalComputerRegistry_messageAvoidanceHint,
new Object[] {culpritName, category.getDisplayName()});
} else {
avoidHint =
Messages.format(
DartTextMessages.CompletionProposalComputerRegistry_messageAvoidanceHintWithWarning,
new Object[] {culpritName, category.getDisplayName(), toString(affectedPlugins)});
}
String message = status.getMessage();
// inlined from MessageDialog.openError
MessageDialog dialog =
new MessageDialog(
DartToolsPlugin.getActiveWorkbenchShell(),
title,
null /* default image */,
message,
MessageDialog.ERROR,
new String[] {IDialogConstants.OK_LABEL},
0) {
@Override
protected Control createCustomArea(Composite parent) {
Link link = new Link(parent, SWT.NONE);
link.setText(avoidHint);
link.addSelectionListener(
new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
PreferencesUtil.createPreferenceDialogOn(
getShell(),
"com.google.dart.tools.ui.internal.preferences.CodeAssistPreferenceAdvanced",
null,
null)
.open(); //$NON-NLS-1$
}
});
GridData gridData = new GridData(SWT.FILL, SWT.BEGINNING, true, false);
gridData.widthHint = this.getMinimumMessageWidth();
link.setLayoutData(gridData);
return link;
}
};
dialog.open();
}
/**
* Returns the names of contributors affected by disabling a category.
*
* @param category the category that would be disabled
* @param culprit the culprit plug-in, which is not included in the returned list
* @return the names of the contributors other than <code>culprit</code> that contribute to <code>
* category</code> (element type: {@link String})
*/
private Set getAffectedContributors(CompletionProposalCategory category, IContributor culprit) {
Set affectedPlugins = new HashSet();
for (Iterator it = getProposalComputerDescriptors().iterator(); it.hasNext(); ) {
CompletionProposalComputerDescriptor desc = (CompletionProposalComputerDescriptor) it.next();
CompletionProposalCategory cat = desc.getCategory();
if (cat.equals(category)) {
IContributor contributor = desc.getContributor();
if (contributor != null && !culprit.equals(contributor)) {
affectedPlugins.add(contributor.getName());
}
}
}
return affectedPlugins;
}
/**
* Reloads the extensions to the extension point.
*
* <p>This method can be called more than once in order to reload from a changed extension
* registry.
*/
public void reload() {
IExtensionRegistry registry = Platform.getExtensionRegistry();
List elements =
new ArrayList(
Arrays.asList(
registry.getConfigurationElementsFor(
DartToolsPlugin.getPluginId(), EXTENSION_POINT)));
Map map = new HashMap();
List all = new ArrayList();
List categories = getCategories(elements);
for (Iterator iter = elements.iterator(); iter.hasNext(); ) {
IConfigurationElement element = (IConfigurationElement) iter.next();
try {
CompletionProposalComputerDescriptor desc =
new CompletionProposalComputerDescriptor(element, this, categories);
Set partitions = desc.getPartitions();
for (Iterator it = partitions.iterator(); it.hasNext(); ) {
String partition = (String) it.next();
List list = (List) map.get(partition);
if (list == null) {
list = new ArrayList();
map.put(partition, list);
}
list.add(desc);
}
all.add(desc);
} catch (InvalidRegistryObjectException x) {
/*
* Element is not valid any longer as the contributing plug-in was unloaded or for some
* other reason. Do not include the extension in the list and inform the user about it.
*/
Object[] args = {element.toString()};
String message =
Messages.format(
DartTextMessages.CompletionProposalComputerRegistry_invalid_message, args);
IStatus status =
new Status(IStatus.WARNING, DartToolsPlugin.getPluginId(), IStatus.OK, message, x);
informUser(status);
}
}
synchronized (this) {
fCategories.clear();
fCategories.addAll(categories);
Set partitions = map.keySet();
fDescriptorsByPartition.keySet().retainAll(partitions);
fPublicDescriptorsByPartition.keySet().retainAll(partitions);
for (Iterator it = partitions.iterator(); it.hasNext(); ) {
String partition = (String) it.next();
List old = (List) fDescriptorsByPartition.get(partition);
List current = (List) map.get(partition);
if (old != null) {
old.clear();
old.addAll(current);
} else {
fDescriptorsByPartition.put(partition, current);
fPublicDescriptorsByPartition.put(partition, Collections.unmodifiableList(current));
}
}
fDescriptors.clear();
fDescriptors.addAll(all);
}
}
