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comparison: accessible/src/base/AccGroupInfo.h
accessible/src/base/AccGroupInfo.h
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| -1:000000000000 | 0:4ffef81cfcf1 |
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #ifndef AccGroupInfo_h_ | |
| 6 #define AccGroupInfo_h_ | |
| 7 | |
| 8 #include "Accessible-inl.h" | |
| 9 | |
| 10 namespace mozilla { | |
| 11 namespace a11y { | |
| 12 | |
| 13 /** | |
| 14 * Calculate and store group information. | |
| 15 */ | |
| 16 class AccGroupInfo | |
| 17 { | |
| 18 public: | |
| 19 ~AccGroupInfo() { MOZ_COUNT_DTOR(AccGroupInfo); } | |
| 20 | |
| 21 /** | |
| 22 * Return 1-based position in the group. | |
| 23 */ | |
| 24 uint32_t PosInSet() const { return mPosInSet; } | |
| 25 | |
| 26 /** | |
| 27 * Return a number of items in the group. | |
| 28 */ | |
| 29 uint32_t SetSize() const { return mSetSize; } | |
| 30 | |
| 31 /** | |
| 32 * Return a direct or logical parent of the accessible that this group info is | |
| 33 * created for. | |
| 34 */ | |
| 35 Accessible* ConceptualParent() const { return mParent; } | |
| 36 | |
| 37 /** | |
| 38 * Update group information. | |
| 39 */ | |
| 40 void Update(); | |
| 41 | |
| 42 /** | |
| 43 * Create group info. | |
| 44 */ | |
| 45 static AccGroupInfo* CreateGroupInfo(Accessible* aAccessible) | |
| 46 { | |
| 47 mozilla::a11y::role role = aAccessible->Role(); | |
| 48 if (role != mozilla::a11y::roles::ROW && | |
| 49 role != mozilla::a11y::roles::OUTLINEITEM && | |
| 50 role != mozilla::a11y::roles::OPTION && | |
| 51 role != mozilla::a11y::roles::LISTITEM && | |
| 52 role != mozilla::a11y::roles::MENUITEM && | |
| 53 role != mozilla::a11y::roles::COMBOBOX_OPTION && | |
| 54 role != mozilla::a11y::roles::RICH_OPTION && | |
| 55 role != mozilla::a11y::roles::CHECK_RICH_OPTION && | |
| 56 role != mozilla::a11y::roles::PARENT_MENUITEM && | |
| 57 role != mozilla::a11y::roles::CHECK_MENU_ITEM && | |
| 58 role != mozilla::a11y::roles::RADIO_MENU_ITEM && | |
| 59 role != mozilla::a11y::roles::RADIOBUTTON && | |
| 60 role != mozilla::a11y::roles::PAGETAB) | |
| 61 return nullptr; | |
| 62 | |
| 63 AccGroupInfo* info = new AccGroupInfo(aAccessible, BaseRole(role)); | |
| 64 return info; | |
| 65 } | |
| 66 | |
| 67 /** | |
| 68 * Return a first item for the given container. | |
| 69 */ | |
| 70 static Accessible* FirstItemOf(Accessible* aContainer); | |
| 71 | |
| 72 /** | |
| 73 * Return next item of the same group to the given item. | |
| 74 */ | |
| 75 static Accessible* NextItemTo(Accessible* aItem); | |
| 76 | |
| 77 protected: | |
| 78 AccGroupInfo(Accessible* aItem, a11y::role aRole); | |
| 79 | |
| 80 private: | |
| 81 AccGroupInfo() MOZ_DELETE; | |
| 82 AccGroupInfo(const AccGroupInfo&) MOZ_DELETE; | |
| 83 AccGroupInfo& operator =(const AccGroupInfo&) MOZ_DELETE; | |
| 84 | |
| 85 static mozilla::a11y::role BaseRole(mozilla::a11y::role aRole) | |
| 86 { | |
| 87 if (aRole == mozilla::a11y::roles::CHECK_MENU_ITEM || | |
| 88 aRole == mozilla::a11y::roles::PARENT_MENUITEM || | |
| 89 aRole == mozilla::a11y::roles::RADIO_MENU_ITEM) | |
| 90 return mozilla::a11y::roles::MENUITEM; | |
| 91 | |
| 92 if (aRole == mozilla::a11y::roles::CHECK_RICH_OPTION) | |
| 93 return mozilla::a11y::roles::RICH_OPTION; | |
| 94 | |
| 95 return aRole; | |
| 96 } | |
| 97 | |
| 98 /** | |
| 99 * Return true if the given parent and child roles should have their node | |
| 100 * relations reported. | |
| 101 */ | |
| 102 static bool ShouldReportRelations(a11y::role aRole, a11y::role aParentRole); | |
| 103 | |
| 104 uint32_t mPosInSet; | |
| 105 uint32_t mSetSize; | |
| 106 Accessible* mParent; | |
| 107 Accessible* mItem; | |
| 108 a11y::role mRole; | |
| 109 }; | |
| 110 | |
| 111 } // namespace mozilla | |
| 112 } // namespace a11y | |
| 113 | |
| 114 #endif |
