The Tor Browser / file comparison
comparison: dom/xslt/base/txList.h
dom/xslt/base/txList.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:3cf660c0b771 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 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 #ifndef TRANSFRMX_LIST_H | |
| 7 #define TRANSFRMX_LIST_H | |
| 8 | |
| 9 #include "txCore.h" | |
| 10 | |
| 11 class txListIterator; | |
| 12 | |
| 13 /** | |
| 14 * Represents an ordered list of Object pointers. Modeled after a Java 2 List. | |
| 15 **/ | |
| 16 class txList : public txObject { | |
| 17 | |
| 18 friend class txListIterator; | |
| 19 | |
| 20 public: | |
| 21 | |
| 22 /** | |
| 23 * Creates an empty txList | |
| 24 **/ | |
| 25 txList(); | |
| 26 | |
| 27 /** | |
| 28 * txList destructor, object references will not be deleted. | |
| 29 **/ | |
| 30 ~txList(); | |
| 31 | |
| 32 /** | |
| 33 * Returns the number of items in this txList | |
| 34 **/ | |
| 35 int32_t getLength(); | |
| 36 | |
| 37 /** | |
| 38 * Returns true if there are no items in this txList | |
| 39 */ | |
| 40 inline bool isEmpty() | |
| 41 { | |
| 42 return itemCount == 0; | |
| 43 } | |
| 44 | |
| 45 /** | |
| 46 * Adds the given Object to the list | |
| 47 **/ | |
| 48 nsresult add(void* objPtr); | |
| 49 | |
| 50 /* | |
| 51 * Removes all the objects from the list | |
| 52 */ | |
| 53 void clear(); | |
| 54 | |
| 55 protected: | |
| 56 | |
| 57 struct ListItem { | |
| 58 ListItem* nextItem; | |
| 59 ListItem* prevItem; | |
| 60 void* objPtr; | |
| 61 }; | |
| 62 | |
| 63 /** | |
| 64 * Removes the given ListItem pointer from the list | |
| 65 **/ | |
| 66 ListItem* remove(ListItem* sItem); | |
| 67 | |
| 68 private: | |
| 69 txList(const txList& aOther); // not implemented | |
| 70 | |
| 71 ListItem* firstItem; | |
| 72 ListItem* lastItem; | |
| 73 int32_t itemCount; | |
| 74 | |
| 75 nsresult insertAfter(void* objPtr, ListItem* sItem); | |
| 76 nsresult insertBefore(void* objPtr, ListItem* sItem); | |
| 77 }; | |
| 78 | |
| 79 | |
| 80 | |
| 81 /** | |
| 82 * An Iterator for the txList Class | |
| 83 **/ | |
| 84 class txListIterator { | |
| 85 | |
| 86 public: | |
| 87 /** | |
| 88 * Creates a new txListIterator for the given txList | |
| 89 * @param list, the txList to create an Iterator for | |
| 90 **/ | |
| 91 txListIterator(txList* list); | |
| 92 | |
| 93 /** | |
| 94 * Adds the Object pointer to the txList pointed to by this txListIterator. | |
| 95 * The Object pointer is inserted as the next item in the txList | |
| 96 * based on the current position within the txList | |
| 97 * @param objPtr the Object pointer to add to the list | |
| 98 **/ | |
| 99 nsresult addAfter(void* objPtr); | |
| 100 | |
| 101 /** | |
| 102 * Adds the Object pointer to the txList pointed to by this txListIterator. | |
| 103 * The Object pointer is inserted as the previous item in the txList | |
| 104 * based on the current position within the txList | |
| 105 * @param objPtr the Object pointer to add to the list | |
| 106 **/ | |
| 107 nsresult addBefore(void* objPtr); | |
| 108 | |
| 109 /** | |
| 110 * Returns true if a successful call to the next() method can be made | |
| 111 * @return true if a successful call to the next() method can be made, | |
| 112 * otherwise false | |
| 113 **/ | |
| 114 bool hasNext(); | |
| 115 | |
| 116 /** | |
| 117 * Returns the next Object pointer from the list | |
| 118 **/ | |
| 119 void* next(); | |
| 120 | |
| 121 /** | |
| 122 * Returns the previous Object pointer from the list | |
| 123 **/ | |
| 124 void* previous(); | |
| 125 | |
| 126 /** | |
| 127 * Returns the current Object | |
| 128 **/ | |
| 129 void* current(); | |
| 130 | |
| 131 /** | |
| 132 * Removes the Object last returned by the next() or previous() methods; | |
| 133 * @return the removed Object pointer | |
| 134 **/ | |
| 135 void* remove(); | |
| 136 | |
| 137 /** | |
| 138 * Resets the current location within the txList to the beginning of the txList | |
| 139 **/ | |
| 140 void reset(); | |
| 141 | |
| 142 /** | |
| 143 * Resets the current location within the txList to the end of the txList | |
| 144 **/ | |
| 145 void resetToEnd(); | |
| 146 | |
| 147 private: | |
| 148 | |
| 149 //-- points to the current list item | |
| 150 txList::ListItem* currentItem; | |
| 151 | |
| 152 //-- points to the list to iterator over | |
| 153 txList* list; | |
| 154 | |
| 155 //-- we've moved off the end of the list | |
| 156 bool atEndOfList; | |
| 157 }; | |
| 158 | |
| 159 typedef txList List; | |
| 160 | |
| 161 #endif |
