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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /dom/smil/SMILInterval.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/smil/SMILInterval.h')
-rw-r--r-- | dom/smil/SMILInterval.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/dom/smil/SMILInterval.h b/dom/smil/SMILInterval.h new file mode 100644 index 0000000000..a569fce147 --- /dev/null +++ b/dom/smil/SMILInterval.h @@ -0,0 +1,86 @@ +/* -*- 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_SMIL_SMILINTERVAL_H_ +#define DOM_SMIL_SMILINTERVAL_H_ + +#include "mozilla/SMILInstanceTime.h" +#include "nsTArray.h" + +namespace mozilla { + +//---------------------------------------------------------------------- +// SMILInterval class +// +// A structure consisting of a begin and end time. The begin time must be +// resolved (i.e. not indefinite or unresolved). +// +// For an overview of how this class is related to other SMIL time classes see +// the documentation in SMILTimeValue.h + +class SMILInterval { + public: + SMILInterval(); + SMILInterval(const SMILInterval& aOther); + ~SMILInterval(); + void Unlink(bool aFiltered = false); + + const SMILInstanceTime* Begin() const { + MOZ_ASSERT(mBegin && mEnd, + "Requesting Begin() on un-initialized instance time"); + return mBegin; + } + SMILInstanceTime* Begin(); + + const SMILInstanceTime* End() const { + MOZ_ASSERT(mBegin && mEnd, + "Requesting End() on un-initialized instance time"); + return mEnd; + } + SMILInstanceTime* End(); + + void SetBegin(SMILInstanceTime& aBegin); + void SetEnd(SMILInstanceTime& aEnd); + void Set(SMILInstanceTime& aBegin, SMILInstanceTime& aEnd) { + SetBegin(aBegin); + SetEnd(aEnd); + } + + void FixBegin(); + void FixEnd(); + + using InstanceTimeList = nsTArray<RefPtr<SMILInstanceTime>>; + + void AddDependentTime(SMILInstanceTime& aTime); + void RemoveDependentTime(const SMILInstanceTime& aTime); + void GetDependentTimes(InstanceTimeList& aTimes); + + // Cue for assessing if this interval can be filtered + bool IsDependencyChainLink() const; + + private: + RefPtr<SMILInstanceTime> mBegin; + RefPtr<SMILInstanceTime> mEnd; + + // SMILInstanceTimes to notify when this interval is changed or deleted. + InstanceTimeList mDependentTimes; + + // Indicates if the end points of the interval are fixed or not. + // + // Note that this is not the same as having an end point whose TIME is fixed + // (i.e. SMILInstanceTime::IsFixed() returns true). This is because it is + // possible to have an end point with a fixed TIME and yet still update the + // end point to refer to a different SMILInstanceTime object. + // + // However, if mBegin/EndFixed is true, then BOTH the SMILInstanceTime + // OBJECT returned for that end point and its TIME value will not change. + bool mBeginFixed; + bool mEndFixed; +}; + +} // namespace mozilla + +#endif // DOM_SMIL_SMILINTERVAL_H_ |