| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * (C) 2001 Dirk Mueller (mueller@kde.org) |
| * Copyright (C) 2003, 2010 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "third_party/blink/renderer/core/html/html_title_element.h" |
| |
| #include "base/auto_reset.h" |
| #include "third_party/blink/renderer/core/dom/child_list_mutation_scope.h" |
| #include "third_party/blink/renderer/core/dom/document.h" |
| #include "third_party/blink/renderer/core/dom/text.h" |
| #include "third_party/blink/renderer/core/html_names.h" |
| #include "third_party/blink/renderer/platform/bindings/exception_state.h" |
| #include "third_party/blink/renderer/platform/wtf/text/string_builder.h" |
| |
| namespace blink { |
| |
| using namespace html_names; |
| |
| inline HTMLTitleElement::HTMLTitleElement(Document& document) |
| : HTMLElement(kTitleTag, document), |
| ignore_title_updates_when_children_change_(false) {} |
| |
| DEFINE_NODE_FACTORY(HTMLTitleElement) |
| |
| Node::InsertionNotificationRequest HTMLTitleElement::InsertedInto( |
| ContainerNode& insertion_point) { |
| HTMLElement::InsertedInto(insertion_point); |
| if (IsInDocumentTree()) |
| GetDocument().SetTitleElement(this); |
| return kInsertionDone; |
| } |
| |
| void HTMLTitleElement::RemovedFrom(ContainerNode& insertion_point) { |
| HTMLElement::RemovedFrom(insertion_point); |
| if (insertion_point.IsInDocumentTree()) |
| GetDocument().RemoveTitle(this); |
| } |
| |
| void HTMLTitleElement::ChildrenChanged(const ChildrenChange& change) { |
| HTMLElement::ChildrenChanged(change); |
| if (IsInDocumentTree() && !ignore_title_updates_when_children_change_) |
| GetDocument().SetTitleElement(this); |
| } |
| |
| String HTMLTitleElement::text() const { |
| StringBuilder result; |
| |
| for (Node* n = firstChild(); n; n = n->nextSibling()) { |
| if (n->IsTextNode()) |
| result.Append(ToText(n)->data()); |
| } |
| |
| return result.ToString(); |
| } |
| |
| void HTMLTitleElement::setText(const String& value) { |
| ChildListMutationScope mutation(*this); |
| |
| { |
| // Avoid calling Document::setTitleElement() during intermediate steps. |
| base::AutoReset<bool> inhibit_title_update_scope( |
| &ignore_title_updates_when_children_change_, !value.IsEmpty()); |
| RemoveChildren(kOmitSubtreeModifiedEvent); |
| } |
| |
| if (!value.IsEmpty()) { |
| AppendChild(GetDocument().createTextNode(value.Impl()), |
| IGNORE_EXCEPTION_FOR_TESTING); |
| } |
| } |
| |
| } // namespace blink |