1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsTreeColumns_h__
#define nsTreeColumns_h__
#include "mozilla/Attributes.h"
#include "mozilla/RefPtr.h"
#include "nsCoord.h"
#include "nsCycleCollectionParticipant.h"
#include "nsQueryObject.h"
#include "nsWrapperCache.h"
#include "nsString.h"
class nsAtom;
class nsTreeBodyFrame;
class nsTreeColumns;
class nsIFrame;
class nsIContent;
struct nsRect;
namespace mozilla {
enum class StyleTextAlignKeyword : uint8_t;
using StyleTextAlign = StyleTextAlignKeyword;
class ErrorResult;
namespace dom {
class Element;
class XULTreeElement;
} // namespace dom
} // namespace mozilla
#define NS_TREECOLUMN_IMPL_CID \
{ /* 02cd1963-4b5d-4a6c-9223-814d3ade93a3 */ \
0x02cd1963, 0x4b5d, 0x4a6c, { \
0x92, 0x23, 0x81, 0x4d, 0x3a, 0xde, 0x93, 0xa3 \
} \
}
// This class is our column info. We use it to iterate our columns and to
// obtain information about each column.
class nsTreeColumn final : public nsISupports, public nsWrapperCache {
public:
nsTreeColumn(nsTreeColumns* aColumns, mozilla::dom::Element* aElement);
NS_DECLARE_STATIC_IID_ACCESSOR(NS_TREECOLUMN_IMPL_CID)
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(nsTreeColumn)
// WebIDL
nsIContent* GetParentObject() const;
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
mozilla::dom::Element* Element();
nsTreeColumns* GetColumns() const { return mColumns; }
int32_t GetX(mozilla::ErrorResult& aRv);
int32_t GetWidth(mozilla::ErrorResult& aRv);
void GetId(nsAString& aId) const;
int32_t Index() const { return mIndex; }
bool Primary() const { return mIsPrimary; }
bool Cycler() const { return mIsCycler; }
bool Editable() const { return mIsEditable; }
int16_t Type() const { return mType; }
nsTreeColumn* GetNext() const { return mNext; }
nsTreeColumn* GetPrevious() const { return mPrevious; }
already_AddRefed<nsTreeColumn> GetPreviousColumn();
void Invalidate(mozilla::ErrorResult& aRv);
friend class nsTreeBodyFrame;
friend class nsTreeColumns;
protected:
~nsTreeColumn();
nsIFrame* GetFrame();
nsIFrame* GetFrame(nsTreeBodyFrame* aBodyFrame);
// Don't call this if GetWidthInTwips or GetRect fails
bool IsLastVisible(nsTreeBodyFrame* aBodyFrame);
/**
* Returns a rect with x and width taken from the frame's rect and specified
* y and height. May fail in case there's no frame for the column.
*/
nsresult GetRect(nsTreeBodyFrame* aBodyFrame, nscoord aY, nscoord aHeight,
nsRect* aResult);
nsresult GetXInTwips(nsTreeBodyFrame* aBodyFrame, nscoord* aResult);
nsresult GetWidthInTwips(nsTreeBodyFrame* aBodyFrame, nscoord* aResult);
void SetColumns(nsTreeColumns* aColumns) { mColumns = aColumns; }
public:
const nsAString& GetId() const { return mId; }
nsAtom* GetAtom() { return mAtom; }
int32_t GetIndex() { return mIndex; }
protected:
bool IsPrimary() { return mIsPrimary; }
bool IsCycler() { return mIsCycler; }
bool IsEditable() { return mIsEditable; }
bool Overflow() { return mOverflow; }
int16_t GetType() { return mType; }
int8_t GetCropStyle() { return mCropStyle; }
mozilla::StyleTextAlign GetTextAlignment() { return mTextAlignment; }
void SetNext(nsTreeColumn* aNext) {
NS_ASSERTION(!mNext, "already have a next sibling");
mNext = aNext;
}
void SetPrevious(nsTreeColumn* aPrevious) { mPrevious = aPrevious; }
private:
/**
* Non-null nsIContent for the associated <treecol> element.
*/
RefPtr<mozilla::dom::Element> mContent;
nsTreeColumns* mColumns;
nsString mId;
RefPtr<nsAtom> mAtom;
int32_t mIndex;
bool mIsPrimary;
bool mIsCycler;
bool mIsEditable;
bool mOverflow;
int16_t mType;
int8_t mCropStyle;
mozilla::StyleTextAlign mTextAlignment;
RefPtr<nsTreeColumn> mNext;
nsTreeColumn* mPrevious;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsTreeColumn, NS_TREECOLUMN_IMPL_CID)
class nsTreeColumns final : public nsISupports, public nsWrapperCache {
private:
~nsTreeColumns();
public:
explicit nsTreeColumns(nsTreeBodyFrame* aTree);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(nsTreeColumns)
nsIContent* GetParentObject() const;
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
// WebIDL
mozilla::dom::XULTreeElement* GetTree() const;
uint32_t Count();
uint32_t Length() { return Count(); }
nsTreeColumn* GetFirstColumn() {
EnsureColumns();
return mFirstColumn;
}
nsTreeColumn* GetLastColumn();
nsTreeColumn* GetPrimaryColumn();
nsTreeColumn* GetSortedColumn();
nsTreeColumn* GetKeyColumn();
nsTreeColumn* GetColumnFor(mozilla::dom::Element* aElement);
nsTreeColumn* IndexedGetter(uint32_t aIndex, bool& aFound);
nsTreeColumn* GetColumnAt(uint32_t aIndex);
nsTreeColumn* NamedGetter(const nsAString& aId, bool& aFound);
nsTreeColumn* GetNamedColumn(const nsAString& aId);
void GetSupportedNames(nsTArray<nsString>& aNames);
void InvalidateColumns();
friend class nsTreeBodyFrame;
protected:
void SetTree(nsTreeBodyFrame* aTree) { mTree = aTree; }
// Builds our cache of column info.
void EnsureColumns();
private:
nsTreeBodyFrame* mTree;
/**
* The first column in the list of columns. All of the columns are supposed
* to be "alive", i.e. have a frame. This is achieved by clearing the columns
* list each time a treecol changes size.
*
* XXX this means that new nsTreeColumn objects are unnecessarily created
* for untouched columns.
*/
RefPtr<nsTreeColumn> mFirstColumn;
};
#endif // nsTreeColumns_h__
|
