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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:34:13 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:34:13 (GMT)
commit67ad0519fd165acee4a4d2a94fa502e9e4847bd0 (patch)
tree1dbf50b3dff8d5ca7e9344733968c72704eb15ff /src/3rdparty/webkit/WebCore/dom/CharacterData.cpp
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Long live Qt!
Diffstat (limited to 'src/3rdparty/webkit/WebCore/dom/CharacterData.cpp')
-rw-r--r--src/3rdparty/webkit/WebCore/dom/CharacterData.cpp236
1 files changed, 236 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/dom/CharacterData.cpp b/src/3rdparty/webkit/WebCore/dom/CharacterData.cpp
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+++ b/src/3rdparty/webkit/WebCore/dom/CharacterData.cpp
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+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ * (C) 1999 Antti Koivisto (koivisto@kde.org)
+ * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 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 "config.h"
+#include "CharacterData.h"
+
+#include "CString.h"
+#include "Document.h"
+#include "EventNames.h"
+#include "ExceptionCode.h"
+#include "MutationEvent.h"
+#include "RenderText.h"
+
+namespace WebCore {
+
+CharacterData::CharacterData(Document *doc)
+ : EventTargetNode(doc)
+ , m_data(StringImpl::empty())
+{
+}
+
+CharacterData::CharacterData(Document* document, const String& text)
+ : EventTargetNode(document)
+{
+ m_data = text.impl() ? text.impl() : StringImpl::empty();
+}
+
+CharacterData::~CharacterData()
+{
+}
+
+void CharacterData::setData(const String& data, ExceptionCode&)
+{
+ StringImpl* dataImpl = data.impl() ? data.impl() : StringImpl::empty();
+ if (equal(m_data.get(), dataImpl))
+ return;
+
+ int oldLength = length();
+ RefPtr<StringImpl> oldStr = m_data;
+ m_data = dataImpl;
+
+ if ((!renderer() || !rendererIsNeeded(renderer()->style())) && attached()) {
+ detach();
+ attach();
+ } else if (renderer())
+ static_cast<RenderText*>(renderer())->setText(m_data);
+
+ dispatchModifiedEvent(oldStr.get());
+
+ document()->textRemoved(this, 0, oldLength);
+}
+
+String CharacterData::substringData(unsigned offset, unsigned count, ExceptionCode& ec)
+{
+ checkCharDataOperation(offset, ec);
+ if (ec)
+ return String();
+
+ return m_data->substring(offset, count);
+}
+
+void CharacterData::appendData(const String& arg, ExceptionCode&)
+{
+ String newStr = m_data;
+ newStr.append(arg);
+
+ RefPtr<StringImpl> oldStr = m_data;
+ m_data = newStr.impl();
+
+ if ((!renderer() || !rendererIsNeeded(renderer()->style())) && attached()) {
+ detach();
+ attach();
+ } else if (renderer())
+ static_cast<RenderText*>(renderer())->setTextWithOffset(m_data, oldStr->length(), 0);
+
+ dispatchModifiedEvent(oldStr.get());
+}
+
+void CharacterData::insertData(unsigned offset, const String& arg, ExceptionCode& ec)
+{
+ checkCharDataOperation(offset, ec);
+ if (ec)
+ return;
+
+ String newStr = m_data;
+ newStr.insert(arg, offset);
+
+ RefPtr<StringImpl> oldStr = m_data;
+ m_data = newStr.impl();
+
+ if ((!renderer() || !rendererIsNeeded(renderer()->style())) && attached()) {
+ detach();
+ attach();
+ } else if (renderer())
+ static_cast<RenderText*>(renderer())->setTextWithOffset(m_data, offset, 0);
+
+ dispatchModifiedEvent(oldStr.get());
+
+ document()->textInserted(this, offset, arg.length());
+}
+
+void CharacterData::deleteData(unsigned offset, unsigned count, ExceptionCode& ec)
+{
+ checkCharDataOperation(offset, ec);
+ if (ec)
+ return;
+
+ unsigned realCount;
+ if (offset + count > length())
+ realCount = length() - offset;
+ else
+ realCount = count;
+
+ String newStr = m_data;
+ newStr.remove(offset, realCount);
+
+ RefPtr<StringImpl> oldStr = m_data;
+ m_data = newStr.impl();
+
+ if ((!renderer() || !rendererIsNeeded(renderer()->style())) && attached()) {
+ detach();
+ attach();
+ } else if (renderer())
+ static_cast<RenderText*>(renderer())->setTextWithOffset(m_data, offset, count);
+
+ dispatchModifiedEvent(oldStr.get());
+
+ document()->textRemoved(this, offset, realCount);
+}
+
+void CharacterData::replaceData(unsigned offset, unsigned count, const String& arg, ExceptionCode& ec)
+{
+ checkCharDataOperation(offset, ec);
+ if (ec)
+ return;
+
+ unsigned realCount;
+ if (offset + count > length())
+ realCount = length() - offset;
+ else
+ realCount = count;
+
+ String newStr = m_data;
+ newStr.remove(offset, realCount);
+ newStr.insert(arg, offset);
+
+ RefPtr<StringImpl> oldStr = m_data;
+ m_data = newStr.impl();
+
+ if ((!renderer() || !rendererIsNeeded(renderer()->style())) && attached()) {
+ detach();
+ attach();
+ } else if (renderer())
+ static_cast<RenderText*>(renderer())->setTextWithOffset(m_data, offset, count);
+
+ dispatchModifiedEvent(oldStr.get());
+
+ // update the markers for spell checking and grammar checking
+ document()->textRemoved(this, offset, realCount);
+ document()->textInserted(this, offset, arg.length());
+}
+
+String CharacterData::nodeValue() const
+{
+ return m_data;
+}
+
+bool CharacterData::containsOnlyWhitespace() const
+{
+ return !m_data || m_data->containsOnlyWhitespace();
+}
+
+void CharacterData::setNodeValue(const String& nodeValue, ExceptionCode& ec)
+{
+ setData(nodeValue, ec);
+}
+
+void CharacterData::dispatchModifiedEvent(StringImpl* prevValue)
+{
+ if (parentNode())
+ parentNode()->childrenChanged();
+ if (document()->hasListenerType(Document::DOMCHARACTERDATAMODIFIED_LISTENER)) {
+ ExceptionCode ec;
+ dispatchEvent(MutationEvent::create(eventNames().DOMCharacterDataModifiedEvent, true, false, 0, prevValue, m_data, String(), 0), ec);
+ }
+ dispatchSubtreeModifiedEvent();
+}
+
+void CharacterData::checkCharDataOperation(unsigned offset, ExceptionCode& ec)
+{
+ ec = 0;
+
+ // INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than the number of 16-bit
+ // units in data.
+ if (offset > length()) {
+ ec = INDEX_SIZE_ERR;
+ return;
+ }
+}
+
+int CharacterData::maxCharacterOffset() const
+{
+ return static_cast<int>(length());
+}
+
+bool CharacterData::rendererIsNeeded(RenderStyle *style)
+{
+ if (!m_data || !length())
+ return false;
+ return EventTargetNode::rendererIsNeeded(style);
+}
+
+bool CharacterData::offsetInCharacters() const
+{
+ return true;
+}
+
+} // namespace WebCore