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comparison: docshell/base/nsDocShellEnumerator.h
docshell/base/nsDocShellEnumerator.h
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| -1:000000000000 | 0:ffecd42f0101 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * | |
| 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 nsDocShellEnumerator_h___ | |
| 8 #define nsDocShellEnumerator_h___ | |
| 9 | |
| 10 #include "nsISimpleEnumerator.h" | |
| 11 #include "nsTArray.h" | |
| 12 #include "nsIWeakReferenceUtils.h" | |
| 13 | |
| 14 class nsIDocShellTreeItem; | |
| 15 | |
| 16 /* | |
| 17 // {13cbc281-35ae-11d5-be5b-bde0edece43c} | |
| 18 #define NS_DOCSHELL_FORWARDS_ENUMERATOR_CID \ | |
| 19 { 0x13cbc281, 0x35ae, 0x11d5, { 0xbe, 0x5b, 0xbd, 0xe0, 0xed, 0xec, 0xe4, 0x3c } } | |
| 20 | |
| 21 #define NS_DOCSHELL_FORWARDS_ENUMERATOR_CONTRACTID \ | |
| 22 "@mozilla.org/docshell/enumerator-forwards;1" | |
| 23 | |
| 24 // {13cbc282-35ae-11d5-be5b-bde0edece43c} | |
| 25 #define NS_DOCSHELL_BACKWARDS_ENUMERATOR_CID \ | |
| 26 { 0x13cbc282, 0x35ae, 0x11d5, { 0xbe, 0x5b, 0xbd, 0xe0, 0xed, 0xec, 0xe4, 0x3c } } | |
| 27 | |
| 28 #define NS_DOCSHELL_BACKWARDS_ENUMERATOR_CONTRACTID \ | |
| 29 "@mozilla.org/docshell/enumerator-backwards;1" | |
| 30 */ | |
| 31 | |
| 32 class nsDocShellEnumerator : public nsISimpleEnumerator | |
| 33 { | |
| 34 protected: | |
| 35 | |
| 36 enum { | |
| 37 enumerateForwards, | |
| 38 enumerateBackwards | |
| 39 }; | |
| 40 | |
| 41 public: | |
| 42 | |
| 43 nsDocShellEnumerator(int32_t inEnumerationDirection); | |
| 44 virtual ~nsDocShellEnumerator(); | |
| 45 | |
| 46 // nsISupports | |
| 47 NS_DECL_ISUPPORTS | |
| 48 | |
| 49 // nsISimpleEnumerator | |
| 50 NS_DECL_NSISIMPLEENUMERATOR | |
| 51 | |
| 52 public: | |
| 53 | |
| 54 nsresult GetEnumerationRootItem(nsIDocShellTreeItem * *aEnumerationRootItem); | |
| 55 nsresult SetEnumerationRootItem(nsIDocShellTreeItem * aEnumerationRootItem); | |
| 56 | |
| 57 nsresult GetEnumDocShellType(int32_t *aEnumerationItemType); | |
| 58 nsresult SetEnumDocShellType(int32_t aEnumerationItemType); | |
| 59 | |
| 60 nsresult First(); | |
| 61 | |
| 62 protected: | |
| 63 | |
| 64 nsresult EnsureDocShellArray(); | |
| 65 nsresult ClearState(); | |
| 66 | |
| 67 nsresult BuildDocShellArray(nsTArray<nsWeakPtr>& inItemArray); | |
| 68 virtual nsresult BuildArrayRecursive(nsIDocShellTreeItem* inItem, nsTArray<nsWeakPtr>& inItemArray) = 0; | |
| 69 | |
| 70 protected: | |
| 71 | |
| 72 nsWeakPtr mRootItem; // weak ref! | |
| 73 | |
| 74 nsTArray<nsWeakPtr> mItemArray; // flattened list of items with matching type | |
| 75 uint32_t mCurIndex; | |
| 76 | |
| 77 int32_t mDocShellType; // only want shells of this type | |
| 78 bool mArrayValid; // is mItemArray up to date? | |
| 79 | |
| 80 const int8_t mEnumerationDirection; | |
| 81 }; | |
| 82 | |
| 83 | |
| 84 class nsDocShellForwardsEnumerator : public nsDocShellEnumerator | |
| 85 { | |
| 86 public: | |
| 87 | |
| 88 nsDocShellForwardsEnumerator() | |
| 89 : nsDocShellEnumerator(enumerateForwards) | |
| 90 { | |
| 91 } | |
| 92 | |
| 93 protected: | |
| 94 | |
| 95 virtual nsresult BuildArrayRecursive(nsIDocShellTreeItem* inItem, nsTArray<nsWeakPtr>& inItemArray); | |
| 96 | |
| 97 }; | |
| 98 | |
| 99 class nsDocShellBackwardsEnumerator : public nsDocShellEnumerator | |
| 100 { | |
| 101 public: | |
| 102 | |
| 103 nsDocShellBackwardsEnumerator() | |
| 104 : nsDocShellEnumerator(enumerateBackwards) | |
| 105 { | |
| 106 } | |
| 107 protected: | |
| 108 | |
| 109 virtual nsresult BuildArrayRecursive(nsIDocShellTreeItem* inItem, nsTArray<nsWeakPtr>& inItemArray); | |
| 110 }; | |
| 111 | |
| 112 #endif // nsDocShellEnumerator_h___ |
