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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Simon Hausmann (hausmann@kde.org)
* (C) 2001 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2004, 2006, 2008, 2009 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 "HTMLFrameElementBase.h"
#include "Attribute.h"
#include "Document.h"
#include "EventNames.h"
#include "FocusController.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameView.h"
#include "HTMLNames.h"
#include "HTMLParserIdioms.h"
#include "KURL.h"
#include "Page.h"
#include "RenderPart.h"
#include "ScriptController.h"
#include "ScriptEventListener.h"
#include "Settings.h"
namespace WebCore {
using namespace HTMLNames;
HTMLFrameElementBase::HTMLFrameElementBase(const QualifiedName& tagName, Document* document)
: HTMLFrameOwnerElement(tagName, document)
, m_scrolling(ScrollbarAuto)
, m_marginWidth(-1)
, m_marginHeight(-1)
, m_viewSource(false)
{
}
bool HTMLFrameElementBase::isURLAllowed() const
{
if (m_URL.isEmpty())
return true;
const KURL& completeURL = document()->completeURL(m_URL);
if (protocolIsJavaScript(completeURL)) {
Document* contentDoc = this->contentDocument();
if (contentDoc && !ScriptController::canAccessFromCurrentOrigin(contentDoc->frame()))
return false;
}
if (Frame* parentFrame = document()->frame()) {
if (parentFrame->page()->frameCount() >= Page::maxNumberOfFrames)
return false;
}
// We allow one level of self-reference because some sites depend on that.
// But we don't allow more than one.
bool foundSelfReference = false;
for (Frame* frame = document()->frame(); frame; frame = frame->tree()->parent()) {
if (equalIgnoringFragmentIdentifier(frame->document()->url(), completeURL)) {
if (foundSelfReference)
return false;
foundSelfReference = true;
}
}
return true;
}
void HTMLFrameElementBase::openURL(bool lockHistory, bool lockBackForwardList)
{
if (!isURLAllowed())
return;
if (m_URL.isEmpty())
m_URL = blankURL().string();
Frame* parentFrame = document()->frame();
if (!parentFrame)
return;
parentFrame->loader()->subframeLoader()->requestFrame(this, m_URL, m_frameName, lockHistory, lockBackForwardList);
if (contentFrame())
contentFrame()->setInViewSourceMode(viewSourceMode());
}
void HTMLFrameElementBase::parseAttribute(const Attribute& attribute)
{
if (attribute.name() == srcdocAttr)
setLocation("about:srcdoc");
else if (attribute.name() == srcAttr && !fastHasAttribute(srcdocAttr))
setLocation(stripLeadingAndTrailingHTMLSpaces(attribute.value()));
else if (isIdAttributeName(attribute.name())) {
// Important to call through to base for the id attribute so the hasID bit gets set.
HTMLFrameOwnerElement::parseAttribute(attribute);
m_frameName = attribute.value();
} else if (attribute.name() == nameAttr) {
m_frameName = attribute.value();
// FIXME: If we are already attached, this doesn't actually change the frame's name.
// FIXME: If we are already attached, this doesn't check for frame name
// conflicts and generate a unique frame name.
} else if (attribute.name() == marginwidthAttr) {
m_marginWidth = attribute.value().toInt();
// FIXME: If we are already attached, this has no effect.
} else if (attribute.name() == marginheightAttr) {
m_marginHeight = attribute.value().toInt();
// FIXME: If we are already attached, this has no effect.
} else if (attribute.name() == scrollingAttr) {
// Auto and yes both simply mean "allow scrolling." No means "don't allow scrolling."
if (equalIgnoringCase(attribute.value(), "auto") || equalIgnoringCase(attribute.value(), "yes"))
m_scrolling = document()->frameElementsShouldIgnoreScrolling() ? ScrollbarAlwaysOff : ScrollbarAuto;
else if (equalIgnoringCase(attribute.value(), "no"))
m_scrolling = ScrollbarAlwaysOff;
// FIXME: If we are already attached, this has no effect.
} else if (attribute.name() == viewsourceAttr) {
m_viewSource = !attribute.isNull();
if (contentFrame())
contentFrame()->setInViewSourceMode(viewSourceMode());
} else if (attribute.name() == onloadAttr)
setAttributeEventListener(eventNames().loadEvent, createAttributeEventListener(this, attribute));
else if (attribute.name() == onbeforeloadAttr)
setAttributeEventListener(eventNames().beforeloadEvent, createAttributeEventListener(this, attribute));
else if (attribute.name() == onbeforeunloadAttr) {
// FIXME: should <frame> elements have beforeunload handlers?
setAttributeEventListener(eventNames().beforeunloadEvent, createAttributeEventListener(this, attribute));
} else
HTMLFrameOwnerElement::parseAttribute(attribute);
}
void HTMLFrameElementBase::setNameAndOpenURL()
{
m_frameName = getNameAttribute();
if (m_frameName.isNull())
m_frameName = getIdAttribute();
openURL();
}
Node::InsertionNotificationRequest HTMLFrameElementBase::insertedInto(ContainerNode* insertionPoint)
{
HTMLFrameOwnerElement::insertedInto(insertionPoint);
if (insertionPoint->inDocument())
return InsertionShouldCallDidNotifyDescendantInsertions;
return InsertionDone;
}
void HTMLFrameElementBase::didNotifyDescendantInsertions(ContainerNode* insertionPoint)
{
ASSERT_UNUSED(insertionPoint, insertionPoint->inDocument());
// DocumentFragments don't kick of any loads.
if (!document()->frame())
return;
// JavaScript in src=javascript: and beforeonload can access the renderer
// during attribute parsing *before* the normal parser machinery would
// attach the element. To support this, we lazyAttach here, but only
// if we don't already have a renderer (if we're inserted
// as part of a DocumentFragment, insertedInto from an earlier element
// could have forced a style resolve and already attached us).
if (!renderer())
lazyAttach(DoNotSetAttached);
setNameAndOpenURL();
}
void HTMLFrameElementBase::attach()
{
HTMLFrameOwnerElement::attach();
if (RenderPart* part = renderPart()) {
if (Frame* frame = contentFrame())
part->setWidget(frame->view());
}
}
KURL HTMLFrameElementBase::location() const
{
if (fastHasAttribute(srcdocAttr))
return KURL(ParsedURLString, "about:srcdoc");
return document()->completeURL(getAttribute(srcAttr));
}
void HTMLFrameElementBase::setLocation(const String& str)
{
Settings* settings = document()->settings();
if (settings && settings->needsAcrobatFrameReloadingQuirk() && m_URL == str)
return;
m_URL = AtomicString(str);
if (inDocument())
openURL(false, false);
}
bool HTMLFrameElementBase::supportsFocus() const
{
return true;
}
void HTMLFrameElementBase::setFocus(bool received)
{
HTMLFrameOwnerElement::setFocus(received);
if (Page* page = document()->page()) {
if (received)
page->focusController()->setFocusedFrame(contentFrame());
else if (page->focusController()->focusedFrame() == contentFrame()) // Focus may have already been given to another frame, don't take it away.
page->focusController()->setFocusedFrame(0);
}
}
bool HTMLFrameElementBase::isURLAttribute(const Attribute& attribute) const
{
return attribute.name() == srcAttr || HTMLFrameOwnerElement::isURLAttribute(attribute);
}
int HTMLFrameElementBase::width()
{
document()->updateLayoutIgnorePendingStylesheets();
if (!renderBox())
return 0;
return renderBox()->width();
}
int HTMLFrameElementBase::height()
{
document()->updateLayoutIgnorePendingStylesheets();
if (!renderBox())
return 0;
return renderBox()->height();
}
#if ENABLE(FULLSCREEN_API)
bool HTMLFrameElementBase::allowFullScreen() const
{
return hasAttribute(webkitallowfullscreenAttr);
}
#endif
} // namespace WebCore
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