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comparison: layout/xul/tree/nsTreeColumns.h
layout/xul/tree/nsTreeColumns.h
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- TOR_BUG_9701
- changeset 11
- deefc01c0e14
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| -1:000000000000 | 0:9ea81b697394 |
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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 #ifndef nsTreeColumns_h__ | |
| 7 #define nsTreeColumns_h__ | |
| 8 | |
| 9 #include "nsITreeColumns.h" | |
| 10 #include "nsITreeBoxObject.h" | |
| 11 #include "mozilla/Attributes.h" | |
| 12 #include "nsCoord.h" | |
| 13 #include "nsCycleCollectionParticipant.h" | |
| 14 #include "nsAutoPtr.h" | |
| 15 #include "nsWrapperCache.h" | |
| 16 #include "nsString.h" | |
| 17 | |
| 18 class nsTreeBodyFrame; | |
| 19 class nsTreeColumns; | |
| 20 class nsIFrame; | |
| 21 class nsIContent; | |
| 22 struct nsRect; | |
| 23 | |
| 24 namespace mozilla { | |
| 25 namespace dom { | |
| 26 class Element; | |
| 27 } // namespace dom | |
| 28 } // namespace mozilla | |
| 29 | |
| 30 #define NS_TREECOLUMN_IMPL_CID \ | |
| 31 { /* 02cd1963-4b5d-4a6c-9223-814d3ade93a3 */ \ | |
| 32 0x02cd1963, \ | |
| 33 0x4b5d, \ | |
| 34 0x4a6c, \ | |
| 35 {0x92, 0x23, 0x81, 0x4d, 0x3a, 0xde, 0x93, 0xa3} \ | |
| 36 } | |
| 37 | |
| 38 // This class is our column info. We use it to iterate our columns and to obtain | |
| 39 // information about each column. | |
| 40 class nsTreeColumn MOZ_FINAL : public nsITreeColumn { | |
| 41 public: | |
| 42 nsTreeColumn(nsTreeColumns* aColumns, nsIContent* aContent); | |
| 43 ~nsTreeColumn(); | |
| 44 | |
| 45 NS_DECLARE_STATIC_IID_ACCESSOR(NS_TREECOLUMN_IMPL_CID) | |
| 46 | |
| 47 NS_DECL_CYCLE_COLLECTING_ISUPPORTS | |
| 48 NS_DECL_CYCLE_COLLECTION_CLASS(nsTreeColumn) | |
| 49 NS_DECL_NSITREECOLUMN | |
| 50 | |
| 51 friend class nsTreeBodyFrame; | |
| 52 friend class nsTreeColumns; | |
| 53 | |
| 54 protected: | |
| 55 nsIFrame* GetFrame(); | |
| 56 nsIFrame* GetFrame(nsTreeBodyFrame* aBodyFrame); | |
| 57 // Don't call this if GetWidthInTwips or GetRect fails | |
| 58 bool IsLastVisible(nsTreeBodyFrame* aBodyFrame); | |
| 59 | |
| 60 /** | |
| 61 * Returns a rect with x and width taken from the frame's rect and specified | |
| 62 * y and height. May fail in case there's no frame for the column. | |
| 63 */ | |
| 64 nsresult GetRect(nsTreeBodyFrame* aBodyFrame, nscoord aY, nscoord aHeight, | |
| 65 nsRect* aResult); | |
| 66 | |
| 67 nsresult GetXInTwips(nsTreeBodyFrame* aBodyFrame, nscoord* aResult); | |
| 68 nsresult GetWidthInTwips(nsTreeBodyFrame* aBodyFrame, nscoord* aResult); | |
| 69 | |
| 70 void SetColumns(nsTreeColumns* aColumns) { mColumns = aColumns; } | |
| 71 | |
| 72 const nsAString& GetId() { return mId; } | |
| 73 nsIAtom* GetAtom() { return mAtom; } | |
| 74 | |
| 75 int32_t GetIndex() { return mIndex; } | |
| 76 | |
| 77 bool IsPrimary() { return mIsPrimary; } | |
| 78 bool IsCycler() { return mIsCycler; } | |
| 79 bool IsEditable() { return mIsEditable; } | |
| 80 bool IsSelectable() { return mIsSelectable; } | |
| 81 bool Overflow() { return mOverflow; } | |
| 82 | |
| 83 int16_t GetType() { return mType; } | |
| 84 | |
| 85 int8_t GetCropStyle() { return mCropStyle; } | |
| 86 int32_t GetTextAlignment() { return mTextAlignment; } | |
| 87 | |
| 88 nsTreeColumn* GetNext() { return mNext; } | |
| 89 nsTreeColumn* GetPrevious() { return mPrevious; } | |
| 90 void SetNext(nsTreeColumn* aNext) { | |
| 91 NS_ASSERTION(!mNext, "already have a next sibling"); | |
| 92 mNext = aNext; | |
| 93 } | |
| 94 void SetPrevious(nsTreeColumn* aPrevious) { mPrevious = aPrevious; } | |
| 95 | |
| 96 private: | |
| 97 /** | |
| 98 * Non-null nsIContent for the associated <treecol> element. | |
| 99 */ | |
| 100 nsCOMPtr<nsIContent> mContent; | |
| 101 | |
| 102 nsTreeColumns* mColumns; | |
| 103 | |
| 104 nsString mId; | |
| 105 nsCOMPtr<nsIAtom> mAtom; | |
| 106 | |
| 107 int32_t mIndex; | |
| 108 | |
| 109 bool mIsPrimary; | |
| 110 bool mIsCycler; | |
| 111 bool mIsEditable; | |
| 112 bool mIsSelectable; | |
| 113 bool mOverflow; | |
| 114 | |
| 115 int16_t mType; | |
| 116 | |
| 117 int8_t mCropStyle; | |
| 118 int8_t mTextAlignment; | |
| 119 | |
| 120 nsRefPtr<nsTreeColumn> mNext; | |
| 121 nsTreeColumn* mPrevious; | |
| 122 }; | |
| 123 | |
| 124 NS_DEFINE_STATIC_IID_ACCESSOR(nsTreeColumn, NS_TREECOLUMN_IMPL_CID) | |
| 125 | |
| 126 class nsTreeColumns MOZ_FINAL : public nsITreeColumns | |
| 127 , public nsWrapperCache | |
| 128 { | |
| 129 public: | |
| 130 nsTreeColumns(nsTreeBodyFrame* aTree); | |
| 131 ~nsTreeColumns(); | |
| 132 | |
| 133 NS_DECL_CYCLE_COLLECTING_ISUPPORTS | |
| 134 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsTreeColumns) | |
| 135 NS_DECL_NSITREECOLUMNS | |
| 136 | |
| 137 nsIContent* GetParentObject() const; | |
| 138 virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE; | |
| 139 | |
| 140 // WebIDL | |
| 141 nsITreeBoxObject* GetTree() const; | |
| 142 uint32_t Count(); | |
| 143 uint32_t Length() | |
| 144 { | |
| 145 return Count(); | |
| 146 } | |
| 147 | |
| 148 nsTreeColumn* GetFirstColumn() { EnsureColumns(); return mFirstColumn; } | |
| 149 nsTreeColumn* GetLastColumn(); | |
| 150 | |
| 151 nsTreeColumn* GetPrimaryColumn(); | |
| 152 nsTreeColumn* GetSortedColumn(); | |
| 153 nsTreeColumn* GetKeyColumn(); | |
| 154 | |
| 155 nsTreeColumn* GetColumnFor(mozilla::dom::Element* aElement); | |
| 156 | |
| 157 nsTreeColumn* IndexedGetter(uint32_t aIndex, bool& aFound); | |
| 158 nsTreeColumn* GetColumnAt(uint32_t aIndex); | |
| 159 nsTreeColumn* NamedGetter(const nsAString& aId, bool& aFound); | |
| 160 bool NameIsEnumerable(const nsAString& aName); | |
| 161 nsTreeColumn* GetNamedColumn(const nsAString& aId); | |
| 162 void GetSupportedNames(unsigned, nsTArray<nsString>& aNames); | |
| 163 | |
| 164 // Uses XPCOM InvalidateColumns(). | |
| 165 // Uses XPCOM RestoreNaturalOrder(). | |
| 166 | |
| 167 friend class nsTreeBodyFrame; | |
| 168 protected: | |
| 169 void SetTree(nsTreeBodyFrame* aTree) { mTree = aTree; } | |
| 170 | |
| 171 // Builds our cache of column info. | |
| 172 void EnsureColumns(); | |
| 173 | |
| 174 private: | |
| 175 nsTreeBodyFrame* mTree; | |
| 176 | |
| 177 /** | |
| 178 * The first column in the list of columns. All of the columns are supposed | |
| 179 * to be "alive", i.e. have a frame. This is achieved by clearing the columns | |
| 180 * list each time an nsTreeColFrame is destroyed. | |
| 181 * | |
| 182 * XXX this means that new nsTreeColumn objects are unnecessarily created | |
| 183 * for untouched columns. | |
| 184 */ | |
| 185 nsTreeColumn* mFirstColumn; | |
| 186 }; | |
| 187 | |
| 188 #endif // nsTreeColumns_h__ |
