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_FlexLine_h
8 #define mozilla_dom_FlexLine_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 FlexItem;
21 
22 class FlexLine : public nsISupports, public nsWrapperCache {
23  public:
24   explicit FlexLine(Flex* aParent, const ComputedFlexLineInfo* aLine);
25 
26  protected:
27   virtual ~FlexLine() = default;
28 
29  public:
30   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
31   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(FlexLine)
32 
33   virtual JSObject* WrapObject(JSContext* aCx,
34                                JS::Handle<JSObject*> aGivenProto) override;
GetParentObject()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<FlexItem>>& 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<FlexItem>> mItems;
55 };
56 
57 }  // namespace dom
58 }  // namespace mozilla
59 
60 #endif /* mozilla_dom_FlexLine_h */
61