layout/style/TimelineCollection.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "TimelineCollection.h"
   8
   9 #include "mozilla/ElementAnimationData.h"
  10 #include "mozilla/dom/Element.h"
  11 #include "mozilla/dom/ScrollTimeline.h"
  12 #include "mozilla/dom/ViewTimeline.h"
  13 #include <type_traits>
  14
  15 namespace mozilla {
  16
  17 template <class TimelineType>
  18 TimelineCollection<TimelineType>::~TimelineCollection() {
  19   MOZ_COUNT_DTOR(TimelineCollection);
  20
  21   // FIXME: Bug 1774060. We have to restyle the animations which use the
  22   // timelines associtated with this TimelineCollection.
  23
  24   LinkedListElement<SelfType>::remove();
  25 }
  26
  27 template <class TimelineType>
  28 void TimelineCollection<TimelineType>::Destroy() {
  29   auto* data = mElement.GetAnimationData();
  30   MOZ_ASSERT(data);
  31   if constexpr (std::is_same_v<TimelineType, dom::ScrollTimeline>) {
  32     MOZ_ASSERT(data->GetScrollTimelineCollection(mPseudo) == this);
  33     data->ClearScrollTimelineCollectionFor(mPseudo);
  34   } else if constexpr (std::is_same_v<TimelineType, dom::ViewTimeline>) {
  35     MOZ_ASSERT(data->GetViewTimelineCollection(mPseudo) == this);
  36     data->ClearViewTimelineCollectionFor(mPseudo);
  37   } else {
  38     MOZ_ASSERT_UNREACHABLE("Unsupported TimelienType");
  39   }
  40 }
  41
  42 template <class TimelineType>
  43 /* static */ TimelineCollection<TimelineType>*
  44 TimelineCollection<TimelineType>::Get(const dom::Element* aElement,
  45                                       const PseudoStyleType aPseudoType) {
  46   MOZ_ASSERT(aElement);
  47   auto* data = aElement->GetAnimationData();
  48   if (!data) {
  49     return nullptr;
  50   }
  51
  52   if constexpr (std::is_same_v<TimelineType, dom::ScrollTimeline>) {
  53     return data->GetScrollTimelineCollection(aPseudoType);
  54   }
  55
  56   if constexpr (std::is_same_v<TimelineType, dom::ViewTimeline>) {
  57     return data->GetViewTimelineCollection(aPseudoType);
  58   }
  59
  60   return nullptr;
  61 }
  62
  63 // Explicit class instantiations
  64 template class TimelineCollection<dom::ScrollTimeline>;
  65 template class TimelineCollection<dom::ViewTimeline>;
  66
  67 }  // namespace mozilla