| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@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. |
| * |
| */ |
| |
| #ifndef HTMLMetaElement_h |
| #define HTMLMetaElement_h |
| |
| #include "core/dom/ViewportDescription.h" |
| #include "core/html/HTMLElement.h" |
| |
| namespace blink { |
| |
| enum ViewportErrorCode { |
| UnrecognizedViewportArgumentKeyError, |
| UnrecognizedViewportArgumentValueError, |
| TruncatedViewportArgumentValueError, |
| MaximumScaleTooLargeError, |
| TargetDensityDpiUnsupported |
| }; |
| |
| class HTMLMetaElement FINAL : public HTMLElement { |
| public: |
| DECLARE_NODE_FACTORY(HTMLMetaElement); |
| |
| const AtomicString& content() const; |
| const AtomicString& httpEquiv() const; |
| const AtomicString& name() const; |
| |
| private: |
| explicit HTMLMetaElement(Document&); |
| |
| typedef void (HTMLMetaElement::*KeyValuePairCallback)(const String& key, const String& value, void* data); |
| void processViewportKeyValuePair(const String& key, const String& value, void* data); |
| void parseContentAttribute(const String& content, KeyValuePairCallback, void* data); |
| |
| virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE; |
| virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE; |
| virtual void didNotifySubtreeInsertionsToDocument() OVERRIDE; |
| |
| float parsePositiveNumber(const String& key, const String& value, bool* ok = 0); |
| |
| Length parseViewportValueAsLength(const String& key, const String& value); |
| float parseViewportValueAsZoom(const String& key, const String& value, bool& computedValueMatchesParsedValue); |
| bool parseViewportValueAsUserZoom(const String& key, const String& value, bool& computedValueMatchesParsedValue); |
| float parseViewportValueAsDPI(const String& key, const String& value); |
| |
| void reportViewportWarning(ViewportErrorCode, const String& replacement1, const String& replacement2); |
| |
| void process(); |
| void processViewportContentAttribute(const String& content, ViewportDescription::Type origin); |
| }; |
| |
| } // namespace blink |
| |
| #endif |