54 lines
1.8 KiB
C++
54 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* This file contains code to help implement the Conditional Processing
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* section of the SVG specification (i.e. the <switch> element and the
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* requiredFeatures, requiredExtensions and systemLanguage attributes).
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*
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* http://www.w3.org/TR/SVG11/struct.html#ConditionalProcessing
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*/
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#include "nsSVGFeatures.h"
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#include "nsIContent.h"
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#include "nsIDocument.h"
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#include "mozilla/Preferences.h"
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using namespace mozilla;
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/*static*/ bool
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nsSVGFeatures::HasFeature(nsISupports* aObject, const nsAString& aFeature)
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{
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if (aFeature.EqualsLiteral("http://www.w3.org/TR/SVG11/feature#Script")) {
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nsCOMPtr<nsIContent> content(do_QueryInterface(aObject));
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if (content) {
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nsIDocument* doc = content->GetUncomposedDoc();
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if (doc && doc->IsResourceDoc()) {
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// no scripting in SVG images or external resource documents
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return false;
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}
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}
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return Preferences::GetBool("javascript.enabled", false);
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}
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#define SVG_SUPPORTED_FEATURE(str) if (aFeature.EqualsLiteral(str)) return true;
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#define SVG_UNSUPPORTED_FEATURE(str)
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#include "nsSVGFeaturesList.h"
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#undef SVG_SUPPORTED_FEATURE
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#undef SVG_UNSUPPORTED_FEATURE
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return false;
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}
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/*static*/ bool
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nsSVGFeatures::HasExtension(const nsAString& aExtension)
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{
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#define SVG_SUPPORTED_EXTENSION(str) if (aExtension.EqualsLiteral(str)) return true;
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SVG_SUPPORTED_EXTENSION("http://www.w3.org/1999/xhtml")
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SVG_SUPPORTED_EXTENSION("http://www.w3.org/1998/Math/MathML")
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#undef SVG_SUPPORTED_EXTENSION
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return false;
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}
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