Java 类com.intellij.ui.TextFieldWithAutoCompletionListProvider 实例源码

protected GradleEditTaskDialog(@Nullable Project project) {
  super(project);

  setTitle("Select Gradle Task");
  setModal(true);

  TextFieldWithAutoCompletionListProvider<String> provider = new TextFieldWithAutoCompletion.StringsCompletionProvider(null, null) {
    @NotNull
    @Override
    public Collection<String> getItems(String prefix, boolean cached, CompletionParameters parameters) {
      setItems(myAvailableTasks);
      return super.getItems(prefix, cached, parameters);
    }
  };
  myTaskField = new TextFieldWithAutoCompletion<String>(project, provider, true, null);
  myTaskPanel.add(myTaskField);

  init();
}

@NotNull
private static TextFieldWithAutoCompletionListProvider<String> getCompletionProvider(@NotNull final List<String> targetVariants) {
  return new StringsCompletionProvider(targetVariants, null) {
    @Override
    public int compare(String item1, String item2) {
      return Integer.valueOf(ContainerUtil.indexOf(targetVariants, item1)).compareTo(ContainerUtil.indexOf(targetVariants, item2));
    }
  };
}

@Override
public void fillCompletionVariants(@NotNull CompletionParameters parameters, @NotNull CompletionResultSet result) {
  PsiFile file = parameters.getOriginalFile();
  Document document = PsiDocumentManager.getInstance(file.getProject()).getDocument(file);
  if (document != null) {
    DataContext dataContext = document.getUserData(CommitMessage.DATA_CONTEXT_KEY);
    if (dataContext != null) {
      result.stopHere();
      if (parameters.getInvocationCount() > 0) {
        ChangeList[] lists = VcsDataKeys.CHANGE_LISTS.getData(dataContext);
        if (lists != null) {
          String prefix = TextFieldWithAutoCompletionListProvider.getCompletionPrefix(parameters);
          CompletionResultSet insensitive = result.caseInsensitive().withPrefixMatcher(new CamelHumpMatcher(prefix));
          for (ChangeList list : lists) {
            for (Change change : list.getChanges()) {
              ContentRevision revision = change.getAfterRevision() == null ? change.getBeforeRevision() : change.getAfterRevision();
              if (revision != null) {
                FilePath filePath = revision.getFile();
                LookupElementBuilder element = LookupElementBuilder.create(filePath.getName()).
                    withIcon(filePath.getFileType().getIcon());
                insensitive.addElement(element);
              }
            }
          }
        }
      }
    }
  }
}

@Override
public void fillCompletionVariants(CompletionParameters parameters, CompletionResultSet result) {
  PsiFile file = parameters.getOriginalFile();
  Document document = PsiDocumentManager.getInstance(file.getProject()).getDocument(file);
  if (document != null) {
    DataContext dataContext = document.getUserData(CommitMessage.DATA_CONTEXT_KEY);
    if (dataContext != null) {
      result.stopHere();
      if (parameters.getInvocationCount() > 0) {
        ChangeList[] lists = VcsDataKeys.CHANGE_LISTS.getData(dataContext);
        if (lists != null) {
          String prefix = TextFieldWithAutoCompletionListProvider.getCompletionPrefix(parameters);
          CompletionResultSet insensitive = result.caseInsensitive().withPrefixMatcher(new CamelHumpMatcher(prefix));
          for (ChangeList list : lists) {
            for (Change change : list.getChanges()) {
              ContentRevision revision = change.getAfterRevision() == null ? change.getBeforeRevision() : change.getAfterRevision();
              if (revision != null) {
                FilePath filePath = revision.getFile();
                LookupElementBuilder element = LookupElementBuilder.create(filePath.getName()).
                    withIcon(filePath.getFileType().getIcon());
                insensitive.addElement(element);
              }
            }
          }
        }
      }
    }
  }
}

@RequiredReadAction
@Override
public void fillCompletionVariants(CompletionParameters parameters, CompletionResultSet result) {
  PsiFile file = parameters.getOriginalFile();
  Document document = PsiDocumentManager.getInstance(file.getProject()).getDocument(file);
  if (document != null) {
    DataContext dataContext = document.getUserData(CommitMessage.DATA_CONTEXT_KEY);
    if (dataContext != null) {
      result.stopHere();
      if (parameters.getInvocationCount() > 0) {
        ChangeList[] lists = dataContext.getData(VcsDataKeys.CHANGE_LISTS);
        if (lists != null) {
          String prefix = TextFieldWithAutoCompletionListProvider.getCompletionPrefix(parameters);
          CompletionResultSet insensitive = result.caseInsensitive().withPrefixMatcher(new CamelHumpMatcher(prefix));
          for (ChangeList list : lists) {
            for (Change change : list.getChanges()) {
              VirtualFile virtualFile = change.getVirtualFile();
              if (virtualFile != null) {
                LookupElementBuilder element = LookupElementBuilder.create(virtualFile.getName()).
                  withIcon(VirtualFilePresentation.getIcon(virtualFile));
                insensitive.addElement(element);
              }
            }
          }
        }
      }
    }
  }
}