mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-11-20 10:33:36 +00:00
114 lines
3.5 KiB
C++
114 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef mozilla_dom_SVGTests_h
|
|
#define mozilla_dom_SVGTests_h
|
|
|
|
#include "nsStringFwd.h"
|
|
#include "SVGStringList.h"
|
|
#include "nsCOMPtr.h"
|
|
|
|
class nsAttrValue;
|
|
class nsIAtom;
|
|
class nsString;
|
|
|
|
namespace mozilla {
|
|
class DOMSVGStringList;
|
|
|
|
#define MOZILLA_DOMSVGTESTS_IID \
|
|
{ 0x92370da8, 0xda28, 0x4895, \
|
|
{0x9b, 0x1b, 0xe0, 0x06, 0x0d, 0xb7, 0x3f, 0xc3 } }
|
|
|
|
namespace dom {
|
|
|
|
class SVGTests : public nsISupports
|
|
{
|
|
public:
|
|
NS_DECLARE_STATIC_IID_ACCESSOR(MOZILLA_DOMSVGTESTS_IID)
|
|
NS_DECL_ISUPPORTS
|
|
|
|
SVGTests();
|
|
|
|
friend class mozilla::DOMSVGStringList;
|
|
typedef mozilla::SVGStringList SVGStringList;
|
|
|
|
/**
|
|
* Compare the language name(s) in a systemLanguage attribute to the
|
|
* user's language preferences, as defined in
|
|
* http://www.w3.org/TR/SVG11/struct.html#SystemLanguageAttribute
|
|
* We have a match if a language name in the users language preferences
|
|
* exactly equals one of the language names or exactly equals a prefix of
|
|
* one of the language names in the systemLanguage attribute.
|
|
* @returns 2 * the lowest index in the aAcceptLangs that matches + 1
|
|
* if only the prefix matches, -2 if there's no systemLanguage attribute,
|
|
* or -1 if no indices match.
|
|
* XXX This algorithm is O(M*N).
|
|
*/
|
|
int32_t GetBestLanguagePreferenceRank(const nsSubstring& aAcceptLangs) const;
|
|
|
|
/**
|
|
* Special value to pass to PassesConditionalProcessingTests to ignore systemLanguage
|
|
* attributes
|
|
*/
|
|
static const nsString * const kIgnoreSystemLanguage;
|
|
|
|
/**
|
|
* Check whether the conditional processing attributes requiredFeatures,
|
|
* requiredExtensions and systemLanguage all "return true" if they apply to
|
|
* and are specified on the given element. Returns true if this element
|
|
* should be rendered, false if it should not.
|
|
*
|
|
* @param aAcceptLangs Optional parameter to pass in the value of the
|
|
* intl.accept_languages preference if the caller has it cached.
|
|
* Alternatively, pass in kIgnoreSystemLanguage to skip the systemLanguage
|
|
* check if the caller is giving that special treatment.
|
|
*/
|
|
bool PassesConditionalProcessingTests(
|
|
const nsString *aAcceptLangs = nullptr) const;
|
|
|
|
/**
|
|
* Returns true if the attribute is one of the conditional processing
|
|
* attributes.
|
|
*/
|
|
bool IsConditionalProcessingAttribute(const nsIAtom* aAttribute) const;
|
|
|
|
bool ParseConditionalProcessingAttribute(
|
|
nsIAtom* aAttribute,
|
|
const nsAString& aValue,
|
|
nsAttrValue& aResult);
|
|
|
|
/**
|
|
* Unsets a conditional processing attribute.
|
|
*/
|
|
void UnsetAttr(const nsIAtom* aAttribute);
|
|
|
|
nsIAtom* GetAttrName(uint8_t aAttrEnum) const;
|
|
void GetAttrValue(uint8_t aAttrEnum, nsAttrValue &aValue) const;
|
|
|
|
void MaybeInvalidate();
|
|
|
|
// WebIDL
|
|
already_AddRefed<DOMSVGStringList> RequiredFeatures();
|
|
already_AddRefed<DOMSVGStringList> RequiredExtensions();
|
|
already_AddRefed<DOMSVGStringList> SystemLanguage();
|
|
bool HasExtension(const nsAString& aExtension);
|
|
|
|
protected:
|
|
virtual ~SVGTests() {}
|
|
|
|
private:
|
|
enum { FEATURES, EXTENSIONS, LANGUAGE };
|
|
SVGStringList mStringListAttributes[3];
|
|
static nsIAtom** sStringListNames[3];
|
|
};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(SVGTests, MOZILLA_DOMSVGTESTS_IID)
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_dom_SVGTests_h
|