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layout/xul/tree/nsTreeColumns.h@8bccb770b82d (annotated)

layout/xul/tree/nsTreeColumns.h

Wed, 31 Dec 2014 13:27:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 13:27:57 +0100
branch
TOR_BUG_3246
changeset 6
8bccb770b82d
permissions
-rw-r--r--

Ignore runtime configuration files generated during quality assurance.

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #ifndef nsTreeColumns_h__
michael@0 7 #define nsTreeColumns_h__
michael@0 8
michael@0 9 #include "nsITreeColumns.h"
michael@0 10 #include "nsITreeBoxObject.h"
michael@0 11 #include "mozilla/Attributes.h"
michael@0 12 #include "nsCoord.h"
michael@0 13 #include "nsCycleCollectionParticipant.h"
michael@0 14 #include "nsAutoPtr.h"
michael@0 15 #include "nsWrapperCache.h"
michael@0 16 #include "nsString.h"
michael@0 17
michael@0 18 class nsTreeBodyFrame;
michael@0 19 class nsTreeColumns;
michael@0 20 class nsIFrame;
michael@0 21 class nsIContent;
michael@0 22 struct nsRect;
michael@0 23
michael@0 24 namespace mozilla {
michael@0 25 namespace dom {
michael@0 26 class Element;
michael@0 27 } // namespace dom
michael@0 28 } // namespace mozilla
michael@0 29
michael@0 30 #define NS_TREECOLUMN_IMPL_CID \
michael@0 31 { /* 02cd1963-4b5d-4a6c-9223-814d3ade93a3 */ \
michael@0 32 0x02cd1963, \
michael@0 33 0x4b5d, \
michael@0 34 0x4a6c, \
michael@0 35 {0x92, 0x23, 0x81, 0x4d, 0x3a, 0xde, 0x93, 0xa3} \
michael@0 36 }
michael@0 37
michael@0 38 // This class is our column info. We use it to iterate our columns and to obtain
michael@0 39 // information about each column.
michael@0 40 class nsTreeColumn MOZ_FINAL : public nsITreeColumn {
michael@0 41 public:
michael@0 42 nsTreeColumn(nsTreeColumns* aColumns, nsIContent* aContent);
michael@0 43 ~nsTreeColumn();
michael@0 44
michael@0 45 NS_DECLARE_STATIC_IID_ACCESSOR(NS_TREECOLUMN_IMPL_CID)
michael@0 46
michael@0 47 NS_DECL_CYCLE_COLLECTING_ISUPPORTS
michael@0 48 NS_DECL_CYCLE_COLLECTION_CLASS(nsTreeColumn)
michael@0 49 NS_DECL_NSITREECOLUMN
michael@0 50
michael@0 51 friend class nsTreeBodyFrame;
michael@0 52 friend class nsTreeColumns;
michael@0 53
michael@0 54 protected:
michael@0 55 nsIFrame* GetFrame();
michael@0 56 nsIFrame* GetFrame(nsTreeBodyFrame* aBodyFrame);
michael@0 57 // Don't call this if GetWidthInTwips or GetRect fails
michael@0 58 bool IsLastVisible(nsTreeBodyFrame* aBodyFrame);
michael@0 59
michael@0 60 /**
michael@0 61 * Returns a rect with x and width taken from the frame's rect and specified
michael@0 62 * y and height. May fail in case there's no frame for the column.
michael@0 63 */
michael@0 64 nsresult GetRect(nsTreeBodyFrame* aBodyFrame, nscoord aY, nscoord aHeight,
michael@0 65 nsRect* aResult);
michael@0 66
michael@0 67 nsresult GetXInTwips(nsTreeBodyFrame* aBodyFrame, nscoord* aResult);
michael@0 68 nsresult GetWidthInTwips(nsTreeBodyFrame* aBodyFrame, nscoord* aResult);
michael@0 69
michael@0 70 void SetColumns(nsTreeColumns* aColumns) { mColumns = aColumns; }
michael@0 71
michael@0 72 const nsAString& GetId() { return mId; }
michael@0 73 nsIAtom* GetAtom() { return mAtom; }
michael@0 74
michael@0 75 int32_t GetIndex() { return mIndex; }
michael@0 76
michael@0 77 bool IsPrimary() { return mIsPrimary; }
michael@0 78 bool IsCycler() { return mIsCycler; }
michael@0 79 bool IsEditable() { return mIsEditable; }
michael@0 80 bool IsSelectable() { return mIsSelectable; }
michael@0 81 bool Overflow() { return mOverflow; }
michael@0 82
michael@0 83 int16_t GetType() { return mType; }
michael@0 84
michael@0 85 int8_t GetCropStyle() { return mCropStyle; }
michael@0 86 int32_t GetTextAlignment() { return mTextAlignment; }
michael@0 87
michael@0 88 nsTreeColumn* GetNext() { return mNext; }
michael@0 89 nsTreeColumn* GetPrevious() { return mPrevious; }
michael@0 90 void SetNext(nsTreeColumn* aNext) {
michael@0 91 NS_ASSERTION(!mNext, "already have a next sibling");
michael@0 92 mNext = aNext;
michael@0 93 }
michael@0 94 void SetPrevious(nsTreeColumn* aPrevious) { mPrevious = aPrevious; }
michael@0 95
michael@0 96 private:
michael@0 97 /**
michael@0 98 * Non-null nsIContent for the associated <treecol> element.
michael@0 99 */
michael@0 100 nsCOMPtr<nsIContent> mContent;
michael@0 101
michael@0 102 nsTreeColumns* mColumns;
michael@0 103
michael@0 104 nsString mId;
michael@0 105 nsCOMPtr<nsIAtom> mAtom;
michael@0 106
michael@0 107 int32_t mIndex;
michael@0 108
michael@0 109 bool mIsPrimary;
michael@0 110 bool mIsCycler;
michael@0 111 bool mIsEditable;
michael@0 112 bool mIsSelectable;
michael@0 113 bool mOverflow;
michael@0 114
michael@0 115 int16_t mType;
michael@0 116
michael@0 117 int8_t mCropStyle;
michael@0 118 int8_t mTextAlignment;
michael@0 119
michael@0 120 nsRefPtr<nsTreeColumn> mNext;
michael@0 121 nsTreeColumn* mPrevious;
michael@0 122 };
michael@0 123
michael@0 124 NS_DEFINE_STATIC_IID_ACCESSOR(nsTreeColumn, NS_TREECOLUMN_IMPL_CID)
michael@0 125
michael@0 126 class nsTreeColumns MOZ_FINAL : public nsITreeColumns
michael@0 127 , public nsWrapperCache
michael@0 128 {
michael@0 129 public:
michael@0 130 nsTreeColumns(nsTreeBodyFrame* aTree);
michael@0 131 ~nsTreeColumns();
michael@0 132
michael@0 133 NS_DECL_CYCLE_COLLECTING_ISUPPORTS
michael@0 134 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsTreeColumns)
michael@0 135 NS_DECL_NSITREECOLUMNS
michael@0 136
michael@0 137 nsIContent* GetParentObject() const;
michael@0 138 virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
michael@0 139
michael@0 140 // WebIDL
michael@0 141 nsITreeBoxObject* GetTree() const;
michael@0 142 uint32_t Count();
michael@0 143 uint32_t Length()
michael@0 144 {
michael@0 145 return Count();
michael@0 146 }
michael@0 147
michael@0 148 nsTreeColumn* GetFirstColumn() { EnsureColumns(); return mFirstColumn; }
michael@0 149 nsTreeColumn* GetLastColumn();
michael@0 150
michael@0 151 nsTreeColumn* GetPrimaryColumn();
michael@0 152 nsTreeColumn* GetSortedColumn();
michael@0 153 nsTreeColumn* GetKeyColumn();
michael@0 154
michael@0 155 nsTreeColumn* GetColumnFor(mozilla::dom::Element* aElement);
michael@0 156
michael@0 157 nsTreeColumn* IndexedGetter(uint32_t aIndex, bool& aFound);
michael@0 158 nsTreeColumn* GetColumnAt(uint32_t aIndex);
michael@0 159 nsTreeColumn* NamedGetter(const nsAString& aId, bool& aFound);
michael@0 160 bool NameIsEnumerable(const nsAString& aName);
michael@0 161 nsTreeColumn* GetNamedColumn(const nsAString& aId);
michael@0 162 void GetSupportedNames(unsigned, nsTArray<nsString>& aNames);
michael@0 163
michael@0 164 // Uses XPCOM InvalidateColumns().
michael@0 165 // Uses XPCOM RestoreNaturalOrder().
michael@0 166
michael@0 167 friend class nsTreeBodyFrame;
michael@0 168 protected:
michael@0 169 void SetTree(nsTreeBodyFrame* aTree) { mTree = aTree; }
michael@0 170
michael@0 171 // Builds our cache of column info.
michael@0 172 void EnsureColumns();
michael@0 173
michael@0 174 private:
michael@0 175 nsTreeBodyFrame* mTree;
michael@0 176
michael@0 177 /**
michael@0 178 * The first column in the list of columns. All of the columns are supposed
michael@0 179 * to be "alive", i.e. have a frame. This is achieved by clearing the columns
michael@0 180 * list each time an nsTreeColFrame is destroyed.
michael@0 181 *
michael@0 182 * XXX this means that new nsTreeColumn objects are unnecessarily created
michael@0 183 * for untouched columns.
michael@0 184 */
michael@0 185 nsTreeColumn* mFirstColumn;
michael@0 186 };
michael@0 187
michael@0 188 #endif // nsTreeColumns_h__

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