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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/svg/SVGAnimatedViewBox.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--dom/svg/SVGAnimatedViewBox.h131
1 files changed, 131 insertions, 0 deletions
diff --git a/dom/svg/SVGAnimatedViewBox.h b/dom/svg/SVGAnimatedViewBox.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 DOM_SVG_SVGANIMATEDVIEWBOX_H_
+#define DOM_SVG_SVGANIMATEDVIEWBOX_H_
+
+#include "nsCycleCollectionParticipant.h"
+#include "nsError.h"
+#include "SVGAttrTearoffTable.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/SMILAttr.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/dom/SVGAnimatedRect.h"
+
+namespace mozilla {
+
+class SMILValue;
+
+namespace dom {
+class SVGRect;
+class SVGAnimationElement;
+class SVGElement;
+} // namespace dom
+
+struct SVGViewBox {
+ float x, y;
+ float width, height;
+ bool none;
+
+ SVGViewBox() : x(0.0), y(0.0), width(0.0), height(0.0), none(true) {}
+ SVGViewBox(float aX, float aY, float aWidth, float aHeight)
+ : x(aX), y(aY), width(aWidth), height(aHeight), none(false) {}
+ bool operator==(const SVGViewBox& aOther) const;
+
+ static nsresult FromString(const nsAString& aStr, SVGViewBox* aViewBox);
+};
+
+class SVGAnimatedViewBox {
+ public:
+ friend class AutoChangeViewBoxNotifier;
+ using SVGElement = dom::SVGElement;
+
+ SVGAnimatedViewBox& operator=(const SVGAnimatedViewBox& aOther) {
+ mBaseVal = aOther.mBaseVal;
+ if (aOther.mAnimVal) {
+ mAnimVal = MakeUnique<SVGViewBox>(*aOther.mAnimVal);
+ }
+ mHasBaseVal = aOther.mHasBaseVal;
+ return *this;
+ }
+
+ void Init();
+
+ /**
+ * Returns true if the corresponding "viewBox" attribute defined a rectangle
+ * with finite values and nonnegative width/height.
+ * Returns false if the viewBox was set to an invalid
+ * string, or if any of the four rect values were too big to store in a
+ * float, or the width/height are negative.
+ */
+ bool HasRect() const;
+
+ /**
+ * Returns true if the corresponding "viewBox" attribute either defined a
+ * rectangle with finite values or the special "none" value.
+ */
+ bool IsExplicitlySet() const {
+ if (mAnimVal || mHasBaseVal) {
+ const SVGViewBox& rect = GetAnimValue();
+ return rect.none || (rect.width >= 0 && rect.height >= 0);
+ }
+ return false;
+ }
+
+ const SVGViewBox& GetBaseValue() const { return mBaseVal; }
+ void SetBaseValue(const SVGViewBox& aRect, SVGElement* aSVGElement);
+ const SVGViewBox& GetAnimValue() const {
+ return mAnimVal ? *mAnimVal : mBaseVal;
+ }
+ void SetAnimValue(const SVGViewBox& aRect, SVGElement* aSVGElement);
+
+ nsresult SetBaseValueString(const nsAString& aValue, SVGElement* aSVGElement,
+ bool aDoSetAttr);
+ void GetBaseValueString(nsAString& aValue) const;
+
+ already_AddRefed<dom::SVGAnimatedRect> ToSVGAnimatedRect(
+ SVGElement* aSVGElement);
+
+ already_AddRefed<dom::SVGRect> ToDOMBaseVal(SVGElement* aSVGElement);
+
+ already_AddRefed<dom::SVGRect> ToDOMAnimVal(SVGElement* aSVGElement);
+
+ UniquePtr<SMILAttr> ToSMILAttr(SVGElement* aSVGElement);
+
+ private:
+ SVGViewBox mBaseVal;
+ UniquePtr<SVGViewBox> mAnimVal;
+ bool mHasBaseVal;
+
+ public:
+ struct SMILViewBox : public SMILAttr {
+ public:
+ SMILViewBox(SVGAnimatedViewBox* aVal, SVGElement* aSVGElement)
+ : mVal(aVal), mSVGElement(aSVGElement) {}
+
+ // These will stay alive because a SMILAttr only lives as long
+ // as the Compositing step, and DOM elements don't get a chance to
+ // die during that.
+ SVGAnimatedViewBox* mVal;
+ SVGElement* mSVGElement;
+
+ // SMILAttr methods
+ nsresult ValueFromString(const nsAString& aStr,
+ const dom::SVGAnimationElement* aSrcElement,
+ SMILValue& aValue,
+ bool& aPreventCachingOfSandwich) const override;
+ SMILValue GetBaseValue() const override;
+ void ClearAnimValue() override;
+ nsresult SetAnimValue(const SMILValue& aValue) override;
+ };
+
+ static SVGAttrTearoffTable<SVGAnimatedViewBox, dom::SVGAnimatedRect>
+ sSVGAnimatedRectTearoffTable;
+};
+
+} // namespace mozilla
+
+#endif // DOM_SVG_SVGANIMATEDVIEWBOX_H_