@NotNull
  private LookupImpl obtainLookup(Editor editor) {
    CompletionAssertions.checkEditorValid(editor);
    LookupImpl existing = (LookupImpl) LookupManager.getActiveLookup(editor);
    if (existing != null && existing.isCompletion()) {
      existing.markReused();
      if (!autopopup) {
        existing.setFocusDegree(LookupImpl.FocusDegree.FOCUSED);
      }
      return existing;
    }

    LookupImpl lookup =
        (LookupImpl)
            LookupManager.getInstance(editor.getProject())
                .createLookup(
                    editor, LookupElement.EMPTY_ARRAY, "", new LookupArranger.DefaultArranger());
    if (editor.isOneLineMode()) {
      lookup.setCancelOnClickOutside(true);
      lookup.setCancelOnOtherWindowOpen(true);
    }
    lookup.setFocusDegree(
        autopopup ? LookupImpl.FocusDegree.UNFOCUSED : LookupImpl.FocusDegree.FOCUSED);
    return lookup;
  }
Пример #2
0
  public boolean fillInCommonPrefix(boolean explicitlyInvoked) {
    if (explicitlyInvoked) {
      setFocusDegree(FocusDegree.FOCUSED);
    }

    if (explicitlyInvoked && myCalculating) return false;
    if (!explicitlyInvoked && mySelectionTouched) return false;

    ListModel listModel = getListModel();
    if (listModel.getSize() <= 1) return false;

    if (listModel.getSize() == 0) return false;

    final LookupElement firstItem = (LookupElement) listModel.getElementAt(0);
    if (listModel.getSize() == 1 && firstItem instanceof EmptyLookupItem) return false;

    final PrefixMatcher firstItemMatcher = itemMatcher(firstItem);
    final String oldPrefix = firstItemMatcher.getPrefix();
    final String presentPrefix = oldPrefix + getAdditionalPrefix();
    String commonPrefix = getCaseCorrectedLookupString(firstItem);

    for (int i = 1; i < listModel.getSize(); i++) {
      LookupElement item = (LookupElement) listModel.getElementAt(i);
      if (item instanceof EmptyLookupItem) return false;
      if (!oldPrefix.equals(itemMatcher(item).getPrefix())) return false;

      final String lookupString = getCaseCorrectedLookupString(item);
      final int length = Math.min(commonPrefix.length(), lookupString.length());
      if (length < commonPrefix.length()) {
        commonPrefix = commonPrefix.substring(0, length);
      }

      for (int j = 0; j < length; j++) {
        if (commonPrefix.charAt(j) != lookupString.charAt(j)) {
          commonPrefix = lookupString.substring(0, j);
          break;
        }
      }

      if (commonPrefix.length() == 0 || commonPrefix.length() < presentPrefix.length()) {
        return false;
      }
    }

    if (commonPrefix.equals(presentPrefix)) {
      return false;
    }

    for (int i = 0; i < listModel.getSize(); i++) {
      LookupElement item = (LookupElement) listModel.getElementAt(i);
      if (!itemMatcher(item).cloneWithPrefix(commonPrefix).prefixMatches(item)) {
        return false;
      }
    }

    myOffsets.setInitialPrefix(presentPrefix, explicitlyInvoked);

    replacePrefix(presentPrefix, commonPrefix);
    return true;
  }