FCL/sf/mw/qtwebkit: comparison WebCore/html/HTMLDocument.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.
+*
+* Portions are Copyright (C) 2002 Netscape Communications Corporation.
+* Other contributors: David Baron <dbaron@fas.harvard.edu>
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License as published by the Free Software Foundation; either
+* version 2.1 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
+* Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public
+* License along with this library; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*
+* Alternatively, the document type parsing portions of this file may be used
+* under the terms of either the Mozilla Public License Version 1.1, found at
+* http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
+* License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
+* (the "GPL"), in which case the provisions of the MPL or the GPL are
+* applicable instead of those above.  If you wish to allow use of your
+* version of this file only under the terms of one of those two
+* licenses (the MPL or the GPL) and not to allow others to use your
+* version of this file under the LGPL, indicate your decision by
+* deleting the provisions above and replace them with the notice and
+* other provisions required by the MPL or the GPL, as the case may be.
+* If you do not delete the provisions above, a recipient may use your
+* version of this file under any of the LGPL, the MPL or the GPL.
+*/
+#include "config.h"
+#include "HTMLDocument.h"
+#include "CSSPropertyNames.h"
+#include "CSSStyleSelector.h"
+#include "CookieJar.h"
+#include "DocumentLoader.h"
+#include "DocumentType.h"
+#include "ExceptionCode.h"
+#include "FocusController.h"
+#include "Frame.h"
+#include "FrameLoader.h"
+#include "FrameTree.h"
+#include "FrameView.h"
+#include "HTMLDocumentParser.h"
+#include "HTMLBodyElement.h"
+#include "HTMLElementFactory.h"
+#include "HTMLNames.h"
+#include "LegacyHTMLDocumentParser.h"
+#include "InspectorController.h"
+#include "KURL.h"
+#include "Page.h"
+#include "Settings.h"
+#include <wtf/text/CString.h>
+#include "DocTypeStrings.cpp"
+namespace WebCore {
+using namespace HTMLNames;
+HTMLDocument::HTMLDocument(Frame* frame, const KURL& url)
+: Document(frame, url, false, true)
+{
+clearXMLVersion();
+setParseMode(Compat);
+}
+HTMLDocument::~HTMLDocument()
+{
+}
+int HTMLDocument::width()
+{
+updateLayoutIgnorePendingStylesheets();
+FrameView* frameView = view();
+return frameView ? frameView->contentsWidth() : 0;
+}
+int HTMLDocument::height()
+{
+updateLayoutIgnorePendingStylesheets();
+FrameView* frameView = view();
+return frameView ? frameView->contentsHeight() : 0;
+}
+String HTMLDocument::dir()
+{
+HTMLElement* b = body();
+if (!b)
+return String();
+return b->getAttribute(dirAttr);
+}
+void HTMLDocument::setDir(const String& value)
+{
+HTMLElement* b = body();
+if (b)
+b->setAttribute(dirAttr, value);
+}
+String HTMLDocument::designMode() const
+{
+return inDesignMode() ? "on" : "off";
+}
+void HTMLDocument::setDesignMode(const String& value)
+{
+InheritedBool mode;
+if (equalIgnoringCase(value, "on"))
+mode = on;
+else if (equalIgnoringCase(value, "off"))
+mode = off;
+else
+mode = inherit;
+Document::setDesignMode(mode);
+}
+String HTMLDocument::compatMode() const
+{
+return inCompatMode() ? "BackCompat" : "CSS1Compat";
+}
+Element* HTMLDocument::activeElement()
+{
+if (Node* node = focusedNode())
+if (node->isElementNode())
+return static_cast<Element*>(node);
+return body();
+}
+bool HTMLDocument::hasFocus()
+{
+Page* page = this->page();
+if (!page)
+return false;
+if (!page->focusController()->isActive())
+return false;
+if (Frame* focusedFrame = page->focusController()->focusedFrame()) {
+if (focusedFrame->tree()->isDescendantOf(frame()))
+return true;
+}
+return false;
+}
+String HTMLDocument::bgColor()
+{
+HTMLElement* b = body();
+HTMLBodyElement* bodyElement = (b && b->hasTagName(bodyTag)) ? static_cast<HTMLBodyElement*>(b) : 0;
+if (!bodyElement)
+return String();
+return bodyElement->bgColor();
+}
+void HTMLDocument::setBgColor(const String& value)
+{
+HTMLElement* b = body();
+HTMLBodyElement* bodyElement = (b && b->hasTagName(bodyTag)) ? static_cast<HTMLBodyElement*>(b) : 0;
+if (bodyElement)
+bodyElement->setBgColor(value);
+}
+String HTMLDocument::fgColor()
+{
+HTMLElement* b = body();
+HTMLBodyElement* bodyElement = (b && b->hasTagName(bodyTag)) ? static_cast<HTMLBodyElement*>(b) : 0;
+if (!bodyElement)
+return String();
+return bodyElement->text();
+}
+void HTMLDocument::setFgColor(const String& value)
+{
+HTMLElement* b = body();
+HTMLBodyElement* bodyElement = (b && b->hasTagName(bodyTag)) ? static_cast<HTMLBodyElement*>(b) : 0;
+if (bodyElement)
+bodyElement->setText(value);
+}
+String HTMLDocument::alinkColor()
+{
+HTMLElement* b = body();
+HTMLBodyElement* bodyElement = (b && b->hasTagName(bodyTag)) ? static_cast<HTMLBodyElement*>(b) : 0;
+if (!bodyElement)
+return String();
+return bodyElement->aLink();
+}
+void HTMLDocument::setAlinkColor(const String& value)
+{
+HTMLElement* b = body();
+HTMLBodyElement* bodyElement = (b && b->hasTagName(bodyTag)) ? static_cast<HTMLBodyElement*>(b) : 0;
+if (bodyElement) {
+// This check is a bit silly, but some benchmarks like to set the
+// document's link colors over and over to the same value and we
+// don't want to incur a style update each time.
+if (bodyElement->aLink() != value)
+bodyElement->setALink(value);
+}
+}
+String HTMLDocument::linkColor()
+{
+HTMLElement* b = body();
+HTMLBodyElement* bodyElement = (b && b->hasTagName(bodyTag)) ? static_cast<HTMLBodyElement*>(b) : 0;
+if (!bodyElement)
+return String();
+return bodyElement->link();
+}
+void HTMLDocument::setLinkColor(const String& value)
+{
+HTMLElement* b = body();
+HTMLBodyElement* bodyElement = (b && b->hasTagName(bodyTag)) ? static_cast<HTMLBodyElement*>(b) : 0;
+if (bodyElement) {
+// This check is a bit silly, but some benchmarks like to set the
+// document's link colors over and over to the same value and we
+// don't want to incur a style update each time.
+if (bodyElement->link() != value)
+bodyElement->setLink(value);
+}
+}
+String HTMLDocument::vlinkColor()
+{
+HTMLElement* b = body();
+HTMLBodyElement* bodyElement = (b && b->hasTagName(bodyTag)) ? static_cast<HTMLBodyElement*>(b) : 0;
+if (!bodyElement)
+return String();
+return bodyElement->vLink();
+}
+void HTMLDocument::setVlinkColor(const String& value)
+{
+HTMLElement* b = body();
+HTMLBodyElement* bodyElement = (b && b->hasTagName(bodyTag)) ? static_cast<HTMLBodyElement*>(b) : 0;
+if (bodyElement) {
+// This check is a bit silly, but some benchmarks like to set the
+// document's link colors over and over to the same value and we
+// don't want to incur a style update each time.
+if (bodyElement->vLink() != value)
+bodyElement->setVLink(value);
+}
+}
+void HTMLDocument::captureEvents()
+{
+}
+void HTMLDocument::releaseEvents()
+{
+}
+DocumentParser* HTMLDocument::createParser()
+{
+bool reportErrors = false;
+#if ENABLE(INSPECTOR)
+if (Page* page = this->page())
+reportErrors = page->inspectorController()->windowVisible();
+#endif
+if (settings() && settings()->html5ParserEnabled())
+return new HTMLDocumentParser(this, reportErrors);
+return new LegacyHTMLDocumentParser(this, reportErrors);
+}
+// --------------------------------------------------------------------------
+// not part of the DOM
+// --------------------------------------------------------------------------
+bool HTMLDocument::childAllowed(Node *newChild)
+{
+return newChild->hasTagName(htmlTag) || newChild->isCommentNode() || (newChild->nodeType() == DOCUMENT_TYPE_NODE && !doctype());
+}
+PassRefPtr<Element> HTMLDocument::createElement(const AtomicString& name, ExceptionCode& ec)
+{
+if (!isValidName(name)) {
+ec = INVALID_CHARACTER_ERR;
+return 0;
+}
+return HTMLElementFactory::createHTMLElement(QualifiedName(nullAtom, name.lower(), xhtmlNamespaceURI), this, 0, false);
+}
+void HTMLDocument::addItemToMap(HashCountedSet<AtomicStringImpl*>& map, const AtomicString& name)
+{
+if (name.isEmpty())
+return;
+map.add(name.impl());
+if (Frame* f = frame())
+f->script()->namedItemAdded(this, name);
+}
+void HTMLDocument::removeItemFromMap(HashCountedSet<AtomicStringImpl*>& map, const AtomicString& name)
+{
+if (name.isEmpty())
+return;
+if (Frame* f = frame())
+f->script()->namedItemRemoved(this, name);
+map.remove(name.impl());
+}
+void HTMLDocument::addNamedItem(const AtomicString& name)
+{
+addItemToMap(m_namedItemCounts, name);
+}
+void HTMLDocument::removeNamedItem(const AtomicString& name)
+{
+removeItemFromMap(m_namedItemCounts, name);
+}
+void HTMLDocument::addExtraNamedItem(const AtomicString& name)
+{
+addItemToMap(m_extraNamedItemCounts, name);
+}
+void HTMLDocument::removeExtraNamedItem(const AtomicString& name)
+{
+removeItemFromMap(m_extraNamedItemCounts, name);
+}
+void HTMLDocument::determineParseMode()
+{
+// FIXME: It's terrible that this code runs separately and isn't just built in to the
+// HTML tokenizer/parser.
+// This code more or less mimics Mozilla's implementation (specifically the
+// doctype parsing implemented by David Baron in Mozilla's nsParser.cpp).
+//
+// There are three possible parse modes:
+// COMPAT - quirks mode emulates WinIE and NS4.  CSS parsing is also relaxed in this mode, e.g., unit types can
+// be omitted from numbers.
+// ALMOST STRICT - This mode is identical to strict mode except for its treatment of line-height in the inline box model.  For
+// now (until the inline box model is re-written), this mode is identical to STANDARDS mode.
+// STRICT - no quirks apply.  Web pages will obey the specifications to the letter.
+bool wasInCompatMode = inCompatMode();
+DocumentType* docType = doctype();
+if (!docType || !equalIgnoringCase(docType->name(), "html"))
+// No doctype found at all or the doctype is not HTML.  Default to quirks mode and Html4.
+setParseMode(Compat);
+else if (!doctype()->systemId().isEmpty() && equalIgnoringCase(docType->systemId(), "http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd"))
+// Assume quirks mode for this particular system ID.  In the HTML5 spec, this is the only
+// system identifier that is examined.
+setParseMode(Compat);
+else if (docType->publicId().isEmpty())
+// A doctype without a public ID means use strict mode.
+setParseMode(Strict);
+else {
+// We have to check a list of public IDs to see what we
+// should do.
+String lowerPubID = docType->publicId().lower();
+CString pubIDStr = lowerPubID.latin1();
+// Look up the entry in our gperf-generated table.
+const PubIDInfo* doctypeEntry = findDoctypeEntry(pubIDStr.data(), pubIDStr.length());
+if (!doctypeEntry)
+// The DOCTYPE is not in the list.  Assume strict mode.
+setParseMode(Strict);
+else {
+switch (docType->systemId().isEmpty() ?
+doctypeEntry->mode_if_no_sysid :
+doctypeEntry->mode_if_sysid) {
+case PubIDInfo::eQuirks3:
+case PubIDInfo::eQuirks:
+setParseMode(Compat);
+break;
+case PubIDInfo::eAlmostStandards:
+setParseMode(AlmostStrict);
+break;
+default:
+ASSERT(false);
+}
+}
+}
+if (inCompatMode() != wasInCompatMode) {
+clearPageUserSheet();
+clearPageGroupUserSheets();
+updateStyleSelector();
+}
+}
+void HTMLDocument::clear()
+{
+// FIXME: This does nothing, and that seems unlikely to be correct.
+// We've long had a comment saying that IE doesn't support this.
+// But I do see it in the documentation for Mozilla.
+}
+bool HTMLDocument::isFrameSet() const
+{
+HTMLElement* bodyElement = body();
+return bodyElement && bodyElement->renderer() && bodyElement->hasTagName(framesetTag);
+}
+}