コード例 #1
0
void
nsTreeContentView::ToggleOpenState(int32_t aRow, ErrorResult& aError)
{
  if (!IsValidRowIndex(aRow)) {
    aError.Throw(NS_ERROR_INVALID_ARG);
    return;
  }

  // We don't serialize content right here, since content might be generated
  // lazily.
  Row* row = mRows[aRow].get();

  if (row->IsOpen())
    row->mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::open, NS_LITERAL_STRING("false"), true);
  else
    row->mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::open, NS_LITERAL_STRING("true"), true);
}
コード例 #2
0
NS_IMETHODIMP
nsTreeContentView::ToggleOpenState(int32_t aIndex)
{
  NS_PRECONDITION(aIndex >= 0 && aIndex < int32_t(mRows.Length()), "bad index");
  if (aIndex < 0 || aIndex >= int32_t(mRows.Length()))
    return NS_ERROR_INVALID_ARG;   

  // We don't serialize content right here, since content might be generated
  // lazily.
  Row* row = mRows[aIndex];

  if (row->IsOpen())
    row->mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::open, NS_LITERAL_STRING("false"), true);
  else
    row->mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::open, NS_LITERAL_STRING("true"), true);

  return NS_OK;
}
コード例 #3
0
void
nsTreeContentView::AttributeChanged(nsIDocument*  aDocument,
                                    dom::Element* aElement,
                                    int32_t       aNameSpaceID,
                                    nsAtom*      aAttribute,
                                    int32_t       aModType,
                                    const nsAttrValue* aOldValue)
{
  // Lots of codepaths under here that do all sorts of stuff, so be safe.
  nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);

  // Make sure this notification concerns us.
  // First check the tag to see if it's one that we care about.

  if (mBoxObject && (aElement == mRoot || aElement == mBody)) {
    mBoxObject->ClearStyleAndImageCaches();
    mBoxObject->Invalidate();
  }

  // We don't consider non-XUL nodes.
  nsIContent* parent = nullptr;
  if (!aElement->IsXULElement() ||
      ((parent = aElement->GetParent()) && !parent->IsXULElement())) {
    return;
  }
  if (!aElement->IsAnyOfXULElements(nsGkAtoms::treecol,
                                    nsGkAtoms::treeitem,
                                    nsGkAtoms::treeseparator,
                                    nsGkAtoms::treerow,
                                    nsGkAtoms::treecell)) {
    return;
  }

  // If we have a legal tag, go up to the tree/select and make sure
  // that it's ours.

  for (nsIContent* element = aElement; element != mBody; element = element->GetParent()) {
    if (!element)
      return; // this is not for us
    if (element->IsXULElement(nsGkAtoms::tree))
      return; // this is not for us
  }

  // Handle changes of the hidden attribute.
  if (aAttribute == nsGkAtoms::hidden &&
      aElement->IsAnyOfXULElements(nsGkAtoms::treeitem,
                                   nsGkAtoms::treeseparator)) {
    bool hidden = aElement->AttrValueIs(kNameSpaceID_None,
                                          nsGkAtoms::hidden,
                                          nsGkAtoms::_true, eCaseMatters);

    int32_t index = FindContent(aElement);
    if (hidden && index >= 0) {
      // Hide this row along with its children.
      int32_t count = RemoveRow(index);
      if (mBoxObject)
        mBoxObject->RowCountChanged(index, -count);
    }
    else if (!hidden && index < 0) {
      // Show this row along with its children.
      nsCOMPtr<nsIContent> parent = aElement->GetParent();
      if (parent) {
        InsertRowFor(parent, aElement);
      }
    }

    return;
  }

  if (aElement->IsXULElement(nsGkAtoms::treecol)) {
    if (aAttribute == nsGkAtoms::properties) {
      if (mBoxObject) {
        nsCOMPtr<nsITreeColumns> cols;
        mBoxObject->GetColumns(getter_AddRefs(cols));
        if (cols) {
          nsCOMPtr<nsIDOMElement> element = do_QueryInterface(aElement);
          nsCOMPtr<nsITreeColumn> col;
          cols->GetColumnFor(element, getter_AddRefs(col));
          mBoxObject->InvalidateColumn(col);
        }
      }
    }
  }
  else if (aElement->IsXULElement(nsGkAtoms::treeitem)) {
    int32_t index = FindContent(aElement);
    if (index >= 0) {
      Row* row = mRows[index].get();
      if (aAttribute == nsGkAtoms::container) {
        bool isContainer =
          aElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::container,
                                nsGkAtoms::_true, eCaseMatters);
        row->SetContainer(isContainer);
        if (mBoxObject)
          mBoxObject->InvalidateRow(index);
      }
      else if (aAttribute == nsGkAtoms::open) {
        bool isOpen =
          aElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::open,
                                nsGkAtoms::_true, eCaseMatters);
        bool wasOpen = row->IsOpen();
        if (! isOpen && wasOpen)
          CloseContainer(index);
        else if (isOpen && ! wasOpen)
          OpenContainer(index);
      }
      else if (aAttribute == nsGkAtoms::empty) {
        bool isEmpty =
          aElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::empty,
                                nsGkAtoms::_true, eCaseMatters);
        row->SetEmpty(isEmpty);
        if (mBoxObject)
          mBoxObject->InvalidateRow(index);
      }
    }
  }
  else if (aElement->IsXULElement(nsGkAtoms::treeseparator)) {
    int32_t index = FindContent(aElement);
    if (index >= 0) {
      if (aAttribute == nsGkAtoms::properties && mBoxObject) {
        mBoxObject->InvalidateRow(index);
      }
    }
  }
  else if (aElement->IsXULElement(nsGkAtoms::treerow)) {
    if (aAttribute == nsGkAtoms::properties) {
      nsCOMPtr<nsIContent> parent = aElement->GetParent();
      if (parent) {
        int32_t index = FindContent(parent);
        if (index >= 0 && mBoxObject) {
          mBoxObject->InvalidateRow(index);
        }
      }
    }
  }
  else if (aElement->IsXULElement(nsGkAtoms::treecell)) {
    if (aAttribute == nsGkAtoms::properties ||
        aAttribute == nsGkAtoms::mode ||
        aAttribute == nsGkAtoms::src ||
        aAttribute == nsGkAtoms::value ||
        aAttribute == nsGkAtoms::label) {
      nsIContent* parent = aElement->GetParent();
      if (parent) {
        nsCOMPtr<nsIContent> grandParent = parent->GetParent();
        if (grandParent && grandParent->IsXULElement()) {
          int32_t index = FindContent(grandParent);
          if (index >= 0 && mBoxObject) {
            // XXX Should we make an effort to invalidate only cell ?
            mBoxObject->InvalidateRow(index);
          }
        }
      }
    }
  }
}
コード例 #4
0
void
nsTreeContentView::ContentInserted(nsIDocument *aDocument,
                                   nsIContent* aContainer,
                                   nsIContent* aChild)
{
  NS_ASSERTION(aChild, "null ptr");

  // Make sure this notification concerns us.
  // First check the tag to see if it's one that we care about.

  // Don't allow non-XUL nodes.
  if (!aChild->IsXULElement() || !aContainer->IsXULElement())
    return;

  if (!aChild->IsAnyOfXULElements(nsGkAtoms::treeitem,
                                  nsGkAtoms::treeseparator,
                                  nsGkAtoms::treechildren,
                                  nsGkAtoms::treerow,
                                  nsGkAtoms::treecell)) {
    return;
  }

  // If we have a legal tag, go up to the tree/select and make sure
  // that it's ours.

  for (nsIContent* element = aContainer; element != mBody; element = element->GetParent()) {
    if (!element)
      return; // this is not for us
    if (element->IsXULElement(nsGkAtoms::tree))
      return; // this is not for us
  }

  // Lots of codepaths under here that do all sorts of stuff, so be safe.
  nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);

  if (aChild->IsXULElement(nsGkAtoms::treechildren)) {
    int32_t index = FindContent(aContainer);
    if (index >= 0) {
      Row* row = mRows[index].get();
      row->SetEmpty(false);
      if (mBoxObject)
        mBoxObject->InvalidateRow(index);
      if (row->IsContainer() && row->IsOpen()) {
        int32_t count = EnsureSubtree(index);
        if (mBoxObject)
          mBoxObject->RowCountChanged(index + 1, count);
      }
    }
  }
  else if (aChild->IsAnyOfXULElements(nsGkAtoms::treeitem,
                                      nsGkAtoms::treeseparator)) {
    InsertRowFor(aContainer, aChild);
  }
  else if (aChild->IsXULElement(nsGkAtoms::treerow)) {
    int32_t index = FindContent(aContainer);
    if (index >= 0 && mBoxObject)
      mBoxObject->InvalidateRow(index);
  }
  else if (aChild->IsXULElement(nsGkAtoms::treecell)) {
    nsCOMPtr<nsIContent> parent = aContainer->GetParent();
    if (parent) {
      int32_t index = FindContent(parent);
      if (index >= 0 && mBoxObject)
        mBoxObject->InvalidateRow(index);
    }
  }
}