dom/base/StaticRange.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 "mozilla/dom/StaticRange.h"
   8 #include "mozilla/dom/StaticRangeBinding.h"
   9 #include "nsINode.h"
  10
  11 namespace mozilla::dom {
  12
  13 template already_AddRefed<StaticRange> StaticRange::Create(
  14     const RangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary,
  15     ErrorResult& aRv);
  16 template already_AddRefed<StaticRange> StaticRange::Create(
  17     const RangeBoundary& aStartBoundary, const RawRangeBoundary& aEndBoundary,
  18     ErrorResult& aRv);
  19 template already_AddRefed<StaticRange> StaticRange::Create(
  20     const RawRangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary,
  21     ErrorResult& aRv);
  22 template already_AddRefed<StaticRange> StaticRange::Create(
  23     const RawRangeBoundary& aStartBoundary,
  24     const RawRangeBoundary& aEndBoundary, ErrorResult& aRv);
  25 template nsresult StaticRange::SetStartAndEnd(
  26     const RangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary);
  27 template nsresult StaticRange::SetStartAndEnd(
  28     const RangeBoundary& aStartBoundary, const RawRangeBoundary& aEndBoundary);
  29 template nsresult StaticRange::SetStartAndEnd(
  30     const RawRangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary);
  31 template nsresult StaticRange::SetStartAndEnd(
  32     const RawRangeBoundary& aStartBoundary,
  33     const RawRangeBoundary& aEndBoundary);
  34 template void StaticRange::DoSetRange(const RangeBoundary& aStartBoundary,
  35                                       const RangeBoundary& aEndBoundary,
  36                                       nsINode* aRootNode);
  37 template void StaticRange::DoSetRange(const RangeBoundary& aStartBoundary,
  38                                       const RawRangeBoundary& aEndBoundary,
  39                                       nsINode* aRootNode);
  40 template void StaticRange::DoSetRange(const RawRangeBoundary& aStartBoundary,
  41                                       const RangeBoundary& aEndBoundary,
  42                                       nsINode* aRootNode);
  43 template void StaticRange::DoSetRange(const RawRangeBoundary& aStartBoundary,
  44                                       const RawRangeBoundary& aEndBoundary,
  45                                       nsINode* aRootNode);
  46
  47 nsTArray<RefPtr<StaticRange>>* StaticRange::sCachedRanges = nullptr;
  48
  49 NS_IMPL_MAIN_THREAD_ONLY_CYCLE_COLLECTING_ADDREF(StaticRange)
  50 NS_IMPL_MAIN_THREAD_ONLY_CYCLE_COLLECTING_RELEASE_WITH_INTERRUPTABLE_LAST_RELEASE(
  51     StaticRange, DoSetRange(RawRangeBoundary(), RawRangeBoundary(), nullptr),
  52     AbstractRange::MaybeCacheToReuse(*this))
  53
  54 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(StaticRange)
  55 NS_INTERFACE_MAP_END_INHERITING(AbstractRange)
  56
  57 NS_IMPL_CYCLE_COLLECTION_CLASS(StaticRange)
  58
  59 NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(StaticRange, AbstractRange)
  60   NS_IMPL_CYCLE_COLLECTION_UNLINK(mStart)
  61   NS_IMPL_CYCLE_COLLECTION_UNLINK(mEnd)
  62 NS_IMPL_CYCLE_COLLECTION_UNLINK_END
  63
  64 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(StaticRange, AbstractRange)
  65 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
  66
  67 NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(StaticRange, AbstractRange)
  68 NS_IMPL_CYCLE_COLLECTION_TRACE_END
  69
  70 // static
  71 already_AddRefed<StaticRange> StaticRange::Create(nsINode* aNode) {
  72   MOZ_ASSERT(aNode);
  73   if (!sCachedRanges || sCachedRanges->IsEmpty()) {
  74     return do_AddRef(new StaticRange(aNode));
  75   }
  76   RefPtr<StaticRange> staticRange = sCachedRanges->PopLastElement().forget();
  77   staticRange->Init(aNode);
  78   return staticRange.forget();
  79 }
  80
  81 // static
  82 template <typename SPT, typename SRT, typename EPT, typename ERT>
  83 already_AddRefed<StaticRange> StaticRange::Create(
  84     const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
  85     const RangeBoundaryBase<EPT, ERT>& aEndBoundary, ErrorResult& aRv) {
  86   RefPtr<StaticRange> staticRange =
  87       StaticRange::Create(aStartBoundary.Container());
  88   staticRange->DoSetRange(aStartBoundary, aEndBoundary, nullptr);
  89
  90   return staticRange.forget();
  91 }
  92
  93 template <typename SPT, typename SRT, typename EPT, typename ERT>
  94 void StaticRange::DoSetRange(const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
  95                              const RangeBoundaryBase<EPT, ERT>& aEndBoundary,
  96                              nsINode* aRootNode) {
  97   mStart = aStartBoundary;
  98   mEnd = aEndBoundary;
  99   MOZ_ASSERT(mStart.IsSet() == mEnd.IsSet());
 100   mIsPositioned = mStart.IsSet() && mEnd.IsSet();
 101 }
 102
 103 /* static */
 104 already_AddRefed<StaticRange> StaticRange::Constructor(
 105     const GlobalObject& global, const StaticRangeInit& init, ErrorResult& aRv) {
 106   if (init.mStartContainer->NodeType() == nsINode::DOCUMENT_TYPE_NODE ||
 107       init.mStartContainer->NodeType() == nsINode::ATTRIBUTE_NODE ||
 108       init.mEndContainer->NodeType() == nsINode::DOCUMENT_TYPE_NODE ||
 109       init.mEndContainer->NodeType() == nsINode::ATTRIBUTE_NODE) {
 110     aRv.Throw(NS_ERROR_DOM_INVALID_NODE_TYPE_ERR);
 111     return nullptr;
 112   }
 113
 114   return Create(init.mStartContainer, init.mStartOffset, init.mEndContainer,
 115                 init.mEndOffset, aRv);
 116 }
 117
 118 JSObject* StaticRange::WrapObject(JSContext* aCx,
 119                                   JS::Handle<JSObject*> aGivenProto) {
 120   return StaticRange_Binding::Wrap(aCx, this, aGivenProto);
 121 }
 122
 123 }  // namespace mozilla::dom