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-rw-r--r--dom/svg/SVGPreserveAspectRatio.h137
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diff --git a/dom/svg/SVGPreserveAspectRatio.h b/dom/svg/SVGPreserveAspectRatio.h
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+++ b/dom/svg/SVGPreserveAspectRatio.h
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+/* -*- 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_CONTENT_SVGPRESERVEASPECTRATIO_H_
+#define MOZILLA_CONTENT_SVGPRESERVEASPECTRATIO_H_
+
+#include "mozilla/HashFunctions.h" // for HashGeneric
+
+#include "nsWrapperCache.h"
+#include "nsCycleCollectionParticipant.h"
+#include "mozilla/ErrorResult.h"
+#include "nsSVGElement.h"
+
+namespace mozilla {
+// Alignment Types
+enum SVGAlign : uint8_t {
+ SVG_PRESERVEASPECTRATIO_UNKNOWN = 0,
+ SVG_PRESERVEASPECTRATIO_NONE = 1,
+ SVG_PRESERVEASPECTRATIO_XMINYMIN = 2,
+ SVG_PRESERVEASPECTRATIO_XMIDYMIN = 3,
+ SVG_PRESERVEASPECTRATIO_XMAXYMIN = 4,
+ SVG_PRESERVEASPECTRATIO_XMINYMID = 5,
+ SVG_PRESERVEASPECTRATIO_XMIDYMID = 6,
+ SVG_PRESERVEASPECTRATIO_XMAXYMID = 7,
+ SVG_PRESERVEASPECTRATIO_XMINYMAX = 8,
+ SVG_PRESERVEASPECTRATIO_XMIDYMAX = 9,
+ SVG_PRESERVEASPECTRATIO_XMAXYMAX = 10
+};
+
+// These constants represent the range of valid enum values for the <align>
+// parameter. They exclude the sentinel _UNKNOWN value.
+const uint16_t SVG_ALIGN_MIN_VALID = SVG_PRESERVEASPECTRATIO_NONE;
+const uint16_t SVG_ALIGN_MAX_VALID = SVG_PRESERVEASPECTRATIO_XMAXYMAX;
+
+// Meet-or-slice Types
+enum SVGMeetOrSlice : uint8_t {
+ SVG_MEETORSLICE_UNKNOWN = 0,
+ SVG_MEETORSLICE_MEET = 1,
+ SVG_MEETORSLICE_SLICE = 2
+};
+
+// These constants represent the range of valid enum values for the
+// <meetOrSlice> parameter. They exclude the sentinel _UNKNOWN value.
+const uint16_t SVG_MEETORSLICE_MIN_VALID = SVG_MEETORSLICE_MEET;
+const uint16_t SVG_MEETORSLICE_MAX_VALID = SVG_MEETORSLICE_SLICE;
+
+class SVGAnimatedPreserveAspectRatio;
+
+class SVGPreserveAspectRatio final
+{
+ friend class SVGAnimatedPreserveAspectRatio;
+public:
+ SVGPreserveAspectRatio(SVGAlign aAlign, SVGMeetOrSlice aMeetOrSlice)
+ : mAlign(aAlign)
+ , mMeetOrSlice(aMeetOrSlice)
+ {}
+
+ bool operator==(const SVGPreserveAspectRatio& aOther) const;
+
+ explicit SVGPreserveAspectRatio()
+ : mAlign(SVG_PRESERVEASPECTRATIO_UNKNOWN)
+ , mMeetOrSlice(SVG_MEETORSLICE_UNKNOWN)
+ {}
+
+ nsresult SetAlign(uint16_t aAlign) {
+ if (aAlign < SVG_ALIGN_MIN_VALID || aAlign > SVG_ALIGN_MAX_VALID)
+ return NS_ERROR_FAILURE;
+ mAlign = static_cast<uint8_t>(aAlign);
+ return NS_OK;
+ }
+
+ SVGAlign GetAlign() const {
+ return static_cast<SVGAlign>(mAlign);
+ }
+
+ nsresult SetMeetOrSlice(uint16_t aMeetOrSlice) {
+ if (aMeetOrSlice < SVG_MEETORSLICE_MIN_VALID ||
+ aMeetOrSlice > SVG_MEETORSLICE_MAX_VALID)
+ return NS_ERROR_FAILURE;
+ mMeetOrSlice = static_cast<uint8_t>(aMeetOrSlice);
+ return NS_OK;
+ }
+
+ SVGMeetOrSlice GetMeetOrSlice() const {
+ return static_cast<SVGMeetOrSlice>(mMeetOrSlice);
+ }
+
+ uint32_t Hash() const {
+ return HashGeneric(mAlign, mMeetOrSlice);
+ }
+
+private:
+ // We can't use enum types here because some compilers fail to pack them.
+ uint8_t mAlign;
+ uint8_t mMeetOrSlice;
+};
+
+namespace dom {
+
+class DOMSVGPreserveAspectRatio final : public nsISupports,
+ public nsWrapperCache
+{
+public:
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMSVGPreserveAspectRatio)
+
+ DOMSVGPreserveAspectRatio(SVGAnimatedPreserveAspectRatio* aVal,
+ nsSVGElement *aSVGElement,
+ bool aIsBaseValue)
+ : mVal(aVal), mSVGElement(aSVGElement), mIsBaseValue(aIsBaseValue)
+ {
+ }
+
+ // WebIDL
+ nsSVGElement* GetParentObject() const { return mSVGElement; }
+ virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+ uint16_t Align();
+ void SetAlign(uint16_t aAlign, ErrorResult& rv);
+ uint16_t MeetOrSlice();
+ void SetMeetOrSlice(uint16_t aMeetOrSlice, ErrorResult& rv);
+
+protected:
+ ~DOMSVGPreserveAspectRatio();
+
+ SVGAnimatedPreserveAspectRatio* mVal; // kept alive because it belongs to mSVGElement
+ RefPtr<nsSVGElement> mSVGElement;
+ const bool mIsBaseValue;
+};
+
+} //namespace dom
+} //namespace mozilla
+
+#endif // MOZILLA_CONTENT_SVGPRESERVEASPECTRATIO_H_