summaryrefslogtreecommitdiffstats
path: root/dom/svg/SVGAnimatedString.h
diff options
context:
space:
mode:
Diffstat (limited to 'dom/svg/SVGAnimatedString.h')
-rw-r--r--dom/svg/SVGAnimatedString.h101
1 files changed, 101 insertions, 0 deletions
diff --git a/dom/svg/SVGAnimatedString.h b/dom/svg/SVGAnimatedString.h
new file mode 100644
index 0000000000..a86e4dec19
--- /dev/null
+++ b/dom/svg/SVGAnimatedString.h
@@ -0,0 +1,101 @@
+/* -*- 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_SVGANIMATEDSTRING_H_
+#define DOM_SVG_SVGANIMATEDSTRING_H_
+
+#include "nsError.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/SMILAttr.h"
+#include "mozilla/SVGAnimatedClassOrString.h"
+#include "mozilla/dom/SVGElement.h"
+#include "mozilla/UniquePtr.h"
+
+namespace mozilla {
+
+class SMILValue;
+
+namespace dom {
+class SVGElement;
+}
+
+class SVGAnimatedString final : public SVGAnimatedClassOrString {
+ public:
+ using SVGElement = dom::SVGElement;
+
+ void Init(uint8_t aAttrEnum) {
+ mAnimVal = nullptr;
+ mAttrEnum = aAttrEnum;
+ mIsBaseSet = false;
+ }
+
+ void SetBaseValue(const nsAString& aValue, SVGElement* aSVGElement,
+ bool aDoSetAttr) override;
+ void GetBaseValue(nsAString& aValue,
+ const SVGElement* aSVGElement) const override {
+ aSVGElement->GetStringBaseValue(mAttrEnum, aValue);
+ }
+
+ void SetAnimValue(const nsAString& aValue, SVGElement* aSVGElement);
+ void GetAnimValue(nsAString& aResult,
+ const SVGElement* aSVGElement) const override;
+
+ // Returns true if the animated value of this string has been explicitly
+ // set (either by animation, or by taking on the base value which has been
+ // explicitly set by markup or a DOM call), false otherwise.
+ // If this returns false, the animated value is still valid, that is,
+ // usable, and represents the default base value of the attribute.
+ bool IsExplicitlySet() const { return !!mAnimVal || mIsBaseSet; }
+
+ UniquePtr<SMILAttr> ToSMILAttr(SVGElement* aSVGElement);
+
+ SVGAnimatedString() = default;
+
+ SVGAnimatedString& operator=(const SVGAnimatedString& aOther) {
+ mAttrEnum = aOther.mAttrEnum;
+ mIsBaseSet = aOther.mIsBaseSet;
+ if (aOther.mAnimVal) {
+ mAnimVal = MakeUnique<nsString>(*aOther.mAnimVal);
+ }
+ return *this;
+ }
+
+ SVGAnimatedString(const SVGAnimatedString& aOther) : SVGAnimatedString() {
+ *this = aOther;
+ }
+
+ private:
+ // FIXME: Should probably use void string rather than UniquePtr<nsString>.
+ UniquePtr<nsString> mAnimVal;
+ uint8_t mAttrEnum = 0; // element specified tracking for attribute
+ bool mIsBaseSet = false;
+
+ public:
+ struct SMILString : public SMILAttr {
+ public:
+ SMILString(SVGAnimatedString* 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.
+ SVGAnimatedString* 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;
+ };
+};
+
+} // namespace mozilla
+
+#endif // DOM_SVG_SVGANIMATEDSTRING_H_