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;
  }
 void appendPrefix(char c) {
   checkValid();
   myOffsets.appendPrefix(c);
   synchronized (myList) {
     myPresentableArranger.prefixChanged(this);
   }
   requestResize();
   refreshUi(false, true);
   ensureSelectionVisible(true);
 }
 private boolean checkReused() {
   synchronized (myList) {
     if (myPresentableArranger != myArranger) {
       myPresentableArranger = myArranger;
       myOffsets.clearAdditionalPrefix();
       myPresentableArranger.prefixChanged(this);
       return true;
     }
     return false;
   }
 }
  @Override
  public void dispose() {
    assert ApplicationManager.getApplication().isDispatchThread();
    assert myHidden;
    if (myDisposed) {
      LOG.error(disposeTrace);
      return;
    }

    myOffsets.disposeMarkers();
    myDisposed = true;
    disposeTrace = DebugUtil.currentStackTrace() + "\n============";
    //noinspection AssignmentToStaticFieldFromInstanceMethod
    staticDisposeTrace = disposeTrace;
  }
  private boolean updateList(boolean onExplicitAction, boolean reused) {
    if (!ApplicationManager.getApplication().isUnitTestMode()) {
      ApplicationManager.getApplication().assertIsDispatchThread();
    }
    checkValid();

    CollectionListModel<LookupElement> listModel = getListModel();

    Pair<List<LookupElement>, Integer> pair;
    synchronized (myList) {
      pair = myPresentableArranger.arrangeItems(this, onExplicitAction || reused);
    }

    List<LookupElement> items = pair.first;
    Integer toSelect = pair.second;
    if (toSelect == null || toSelect < 0 || items.size() > 0 && toSelect >= items.size()) {
      LOG.error(
          "Arranger "
              + myPresentableArranger
              + " returned invalid selection index="
              + toSelect
              + "; items="
              + items);
      toSelect = 0;
    }

    myOffsets.checkMinPrefixLengthChanges(items, this);
    List<LookupElement> oldModel = listModel.toList();

    listModel.removeAll();
    if (!items.isEmpty()) {
      listModel.add(items);
    } else {
      addEmptyItem(listModel);
    }

    updateListHeight(listModel);

    myList.setSelectedIndex(toSelect);
    return !ContainerUtil.equalsIdentity(oldModel, items);
  }
  boolean truncatePrefix(boolean preserveSelection) {
    if (!myOffsets.truncatePrefix()) {
      return false;
    }

    if (preserveSelection) {
      markSelectionTouched();
    }

    boolean shouldUpdate;
    synchronized (myList) {
      shouldUpdate = myPresentableArranger == myArranger;
      myPresentableArranger.prefixChanged(this);
    }
    requestResize();
    if (shouldUpdate) {
      refreshUi(false, true);
      ensureSelectionVisible(true);
    }

    return true;
  }
  public boolean performGuardedChange(Runnable change) {
    checkValid();
    assert !myChangeGuard : "already in change";

    myEditor.getDocument().startGuardedBlockChecking();
    myChangeGuard = true;
    boolean result;
    try {
      result = myOffsets.performGuardedChange(change);
    } finally {
      myEditor.getDocument().stopGuardedBlockChecking();
      myChangeGuard = false;
    }
    if (!result || myDisposed) {
      hide();
      return false;
    }
    if (isVisible()) {
      HintManagerImpl.updateLocation(this, myEditor, myUi.calculatePosition().getLocation());
    }
    checkValid();
    return true;
  }
 public int getLookupOriginalStart() {
   return myOffsets.getLookupOriginalStart();
 }
 @Override
 public int getLookupStart() {
   return myOffsets.getLookupStart(disposeTrace);
 }
Esempio n. 10
0
 public int getPrefixLength(LookupElement item) {
   return myOffsets.getPrefixLength(item, this);
 }
Esempio n. 11
0
 public String getAdditionalPrefix() {
   return myOffsets.getAdditionalPrefix();
 }
Esempio n. 12
0
 public void restorePrefix() {
   myOffsets.restorePrefix();
 }