dom/flex/FlexLineValues.h

   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 #ifndef mozilla_dom_FlexLineValues_h
   8 #define mozilla_dom_FlexLineValues_h
   9
  10 #include "mozilla/dom/FlexBinding.h"
  11 #include "nsISupports.h"
  12 #include "nsWrapperCache.h"
  13
  14 struct ComputedFlexLineInfo;
  15
  16 namespace mozilla {
  17 namespace dom {
  18
  19 class Flex;
  20 class FlexItemValues;
  21
  22 class FlexLineValues : public nsISupports, public nsWrapperCache {
  23  public:
  24   explicit FlexLineValues(Flex* aParent, const ComputedFlexLineInfo* aLine);
  25
  26  protected:
  27   virtual ~FlexLineValues() = default;
  28
  29  public:
  30   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  31   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(FlexLineValues)
  32
  33   virtual JSObject* WrapObject(JSContext* aCx,
  34                                JS::Handle<JSObject*> aGivenProto) override;
  35   Flex* GetParentObject() { return mParent; }
  36
  37   FlexLineGrowthState GrowthState() const;
  38   double CrossStart() const;
  39   double CrossSize() const;
  40   double FirstBaselineOffset() const;
  41   double LastBaselineOffset() const;
  42
  43   void GetItems(nsTArray<RefPtr<FlexItemValues>>& aResult);
  44
  45  protected:
  46   RefPtr<Flex> mParent;
  47
  48   FlexLineGrowthState mGrowthState;
  49   double mCrossStart;
  50   double mCrossSize;
  51   double mFirstBaselineOffset;
  52   double mLastBaselineOffset;
  53
  54   nsTArray<RefPtr<FlexItemValues>> mItems;
  55 };
  56
  57 }  // namespace dom
  58 }  // namespace mozilla
  59
  60 #endif /* mozilla_dom_FlexLineValues_h */