WebCore/html/HTMLOptionElement.cpp
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/html/HTMLOptionElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,259 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ *           (C) 1999 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2001 Dirk Mueller (mueller@kde.org)
+ *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
+ * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
+ * Copyright (C) 2010 Google 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 "HTMLOptionElement.h"
+
+#include "Attribute.h"
+#include "CSSStyleSelector.h"
+#include "Document.h"
+#include "ExceptionCode.h"
+#include "HTMLNames.h"
+#include "HTMLSelectElement.h"
+#include "NodeRenderStyle.h"
+#include "RenderMenuList.h"
+#include "Text.h"
+#include <wtf/StdLibExtras.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+HTMLOptionElement::HTMLOptionElement(const QualifiedName& tagName, Document* document, HTMLFormElement* form)
+    : HTMLFormControlElement(tagName, document, form)
+{
+    ASSERT(hasTagName(optionTag));
+}
+
+PassRefPtr<HTMLOptionElement> HTMLOptionElement::create(Document* document, HTMLFormElement* form)
+{
+    return adoptRef(new HTMLOptionElement(optionTag, document, form));
+}
+
+PassRefPtr<HTMLOptionElement> HTMLOptionElement::create(const QualifiedName& tagName, Document* document, HTMLFormElement* form)
+{
+    return adoptRef(new HTMLOptionElement(tagName, document, form));
+}
+
+PassRefPtr<HTMLOptionElement> HTMLOptionElement::createForJSConstructor(Document* document, const String& data, const String& value,
+        bool defaultSelected, bool selected, ExceptionCode& ec)
+{
+    RefPtr<HTMLOptionElement> element = adoptRef(new HTMLOptionElement(optionTag, document));
+
+    RefPtr<Text> text = Text::create(document, data.isNull() ? "" : data);
+
+    ec = 0;
+    element->appendChild(text.release(), ec);
+    if (ec)
+        return 0;
+
+    if (!value.isNull())
+        element->setValue(value);
+    element->setDefaultSelected(defaultSelected);
+    element->setSelected(selected);
+
+    return element.release();
+}
+
+bool HTMLOptionElement::checkDTD(const Node* newChild)
+{
+    return newChild->isTextNode() || newChild->hasTagName(scriptTag);
+}
+
+void HTMLOptionElement::attach()
+{
+    if (parentNode()->renderStyle())
+        setRenderStyle(styleForRenderer());
+    HTMLFormControlElement::attach();
+}
+
+void HTMLOptionElement::detach()
+{
+    m_style.clear();
+    HTMLFormControlElement::detach();
+}
+
+bool HTMLOptionElement::supportsFocus() const
+{
+    return HTMLElement::supportsFocus();
+}
+
+bool HTMLOptionElement::isFocusable() const
+{
+    // Option elements do not have a renderer so we check the renderStyle instead.
+    return supportsFocus() && renderStyle() && renderStyle()->display() != NONE;
+}
+
+const AtomicString& HTMLOptionElement::formControlType() const
+{
+    DEFINE_STATIC_LOCAL(const AtomicString, option, ("option"));
+    return option;
+}
+
+String HTMLOptionElement::text() const
+{
+    return OptionElement::collectOptionLabelOrText(m_data, this);
+}
+
+void HTMLOptionElement::setText(const String &text, ExceptionCode& ec)
+{
+    // Handle the common special case where there's exactly 1 child node, and it's a text node.
+    Node* child = firstChild();
+    if (child && child->isTextNode() && !child->nextSibling()) {
+        static_cast<Text *>(child)->setData(text, ec);
+        return;
+    }
+
+    removeChildren();
+    appendChild(Text::create(document(), text), ec);
+}
+
+void HTMLOptionElement::accessKeyAction(bool)
+{
+    HTMLSelectElement* select = ownerSelectElement();
+    if (select)
+        select->accessKeySetSelectedIndex(index());
+}
+
+int HTMLOptionElement::index() const
+{
+    return OptionElement::optionIndex(ownerSelectElement(), this);
+}
+
+void HTMLOptionElement::parseMappedAttribute(Attribute* attr)
+{
+    if (attr->name() == selectedAttr)
+        m_data.setSelected(!attr->isNull());
+    else if (attr->name() == valueAttr)
+        m_data.setValue(attr->value());
+    else if (attr->name() == labelAttr)
+        m_data.setLabel(attr->value());
+    else
+        HTMLFormControlElement::parseMappedAttribute(attr);
+}
+
+String HTMLOptionElement::value() const
+{
+    return OptionElement::collectOptionValue(m_data, this);
+}
+
+void HTMLOptionElement::setValue(const String& value)
+{
+    setAttribute(valueAttr, value);
+}
+
+bool HTMLOptionElement::selected() const
+{
+    if (HTMLSelectElement* select = ownerSelectElement())
+        select->recalcListItemsIfNeeded();
+    return m_data.selected();
+}
+
+void HTMLOptionElement::setSelected(bool selected)
+{
+    if (m_data.selected() == selected)
+        return;
+
+    OptionElement::setSelectedState(m_data, this, selected);
+
+    if (HTMLSelectElement* select = ownerSelectElement())
+        select->setSelectedIndex(selected ? index() : -1, false);
+}
+
+void HTMLOptionElement::setSelectedState(bool selected)
+{
+    OptionElement::setSelectedState(m_data, this, selected);
+}
+
+void HTMLOptionElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
+{
+    HTMLSelectElement* select = ownerSelectElement();
+    if (select)
+        select->childrenChanged(changedByParser);
+    HTMLFormControlElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
+}
+
+HTMLSelectElement* HTMLOptionElement::ownerSelectElement() const
+{
+    Node* select = parentNode();
+    while (select && !(select->hasTagName(selectTag) || select->hasTagName(keygenTag)))
+        select = select->parentNode();
+
+    if (!select)
+        return 0;
+
+    return static_cast<HTMLSelectElement*>(select);
+}
+
+bool HTMLOptionElement::defaultSelected() const
+{
+    return !getAttribute(selectedAttr).isNull();
+}
+
+void HTMLOptionElement::setDefaultSelected(bool b)
+{
+    setAttribute(selectedAttr, b ? "" : 0);
+}
+
+String HTMLOptionElement::label() const
+{
+    return m_data.label();
+}
+
+void HTMLOptionElement::setRenderStyle(PassRefPtr<RenderStyle> newStyle)
+{
+    m_style = newStyle;
+}
+
+RenderStyle* HTMLOptionElement::nonRendererRenderStyle() const
+{
+    return m_style.get();
+}
+
+String HTMLOptionElement::textIndentedToRespectGroupLabel() const
+{
+    return OptionElement::collectOptionTextRespectingGroupLabel(m_data, this);
+}
+
+bool HTMLOptionElement::disabled() const
+{
+    return ownElementDisabled() || (parentNode() && static_cast<HTMLFormControlElement*>(parentNode())->disabled());
+}
+
+void HTMLOptionElement::insertedIntoTree(bool deep)
+{
+    if (HTMLSelectElement* select = ownerSelectElement()) {
+        select->setRecalcListItems();
+        // Avoid our selected() getter since it will recalculate list items incorrectly for us.
+        if (m_data.selected())
+            select->setSelectedIndex(index(), false);
+        select->scrollToSelection();
+    }
+
+    HTMLFormControlElement::insertedIntoTree(deep);
+}
+
+} // namespace