The Tor Browser / file comparison
comparison: layout/base/nsStyleChangeList.h
layout/base/nsStyleChangeList.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:fa25c6b76e48 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /* | |
| 7 * a list of the recomputation that needs to be done in response to a | |
| 8 * style change | |
| 9 */ | |
| 10 | |
| 11 #ifndef nsStyleChangeList_h___ | |
| 12 #define nsStyleChangeList_h___ | |
| 13 | |
| 14 #include "mozilla/Attributes.h" | |
| 15 | |
| 16 #include "nsError.h" | |
| 17 #include "nsChangeHint.h" | |
| 18 | |
| 19 class nsIFrame; | |
| 20 class nsIContent; | |
| 21 | |
| 22 // XXX would all platforms support putting this inside the list? | |
| 23 struct nsStyleChangeData { | |
| 24 nsIFrame* mFrame; | |
| 25 nsIContent* mContent; | |
| 26 nsChangeHint mHint; | |
| 27 }; | |
| 28 | |
| 29 static const uint32_t kStyleChangeBufferSize = 10; | |
| 30 | |
| 31 // Note: nsStyleChangeList owns a reference to | |
| 32 // nsIContent pointers in its list. | |
| 33 class nsStyleChangeList { | |
| 34 public: | |
| 35 nsStyleChangeList(); | |
| 36 ~nsStyleChangeList(); | |
| 37 | |
| 38 int32_t Count(void) const { | |
| 39 return mCount; | |
| 40 } | |
| 41 | |
| 42 /** | |
| 43 * Fills in pointers without reference counting. | |
| 44 */ | |
| 45 nsresult ChangeAt(int32_t aIndex, nsIFrame*& aFrame, nsIContent*& aContent, | |
| 46 nsChangeHint& aHint) const; | |
| 47 | |
| 48 /** | |
| 49 * Fills in a pointer to the list entry storage (no reference counting | |
| 50 * involved). | |
| 51 */ | |
| 52 nsresult ChangeAt(int32_t aIndex, const nsStyleChangeData** aChangeData) const; | |
| 53 | |
| 54 nsresult AppendChange(nsIFrame* aFrame, nsIContent* aContent, nsChangeHint aHint); | |
| 55 | |
| 56 void Clear(void); | |
| 57 | |
| 58 protected: | |
| 59 nsStyleChangeList& operator=(const nsStyleChangeList& aCopy); | |
| 60 bool operator==(const nsStyleChangeList& aOther) const; | |
| 61 | |
| 62 nsStyleChangeData* mArray; | |
| 63 int32_t mArraySize; | |
| 64 int32_t mCount; | |
| 65 nsStyleChangeData mBuffer[kStyleChangeBufferSize]; | |
| 66 | |
| 67 private: | |
| 68 nsStyleChangeList(const nsStyleChangeList&) MOZ_DELETE; | |
| 69 }; | |
| 70 | |
| 71 | |
| 72 #endif /* nsStyleChangeList_h___ */ |
