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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 nsTreeContentView_h__
#define nsTreeContentView_h__
#include "nsCycleCollectionParticipant.h"
#include "nsTArray.h"
#include "nsStubDocumentObserver.h"
#include "nsITreeBoxObject.h"
#include "nsITreeColumns.h"
#include "nsITreeView.h"
#include "nsITreeContentView.h"
#include "nsITreeSelection.h"
#include "mozilla/Attributes.h"
#include "mozilla/UniquePtr.h"
class nsIDocument;
class Row;
nsresult NS_NewTreeContentView(nsITreeView** aResult);
class nsTreeContentView final : public nsINativeTreeView,
public nsITreeContentView,
public nsStubDocumentObserver
{
public:
nsTreeContentView(void);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsTreeContentView,
nsINativeTreeView)
NS_DECL_NSITREEVIEW
// nsINativeTreeView: Untrusted code can use us
NS_IMETHOD EnsureNative() override { return NS_OK; }
NS_DECL_NSITREECONTENTVIEW
// nsIDocumentObserver
NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
NS_DECL_NSIMUTATIONOBSERVER_NODEWILLBEDESTROYED
static bool CanTrustTreeSelection(nsISupports* aValue);
protected:
~nsTreeContentView(void);
// Recursive methods which deal with serializing of nested content.
void Serialize(nsIContent* aContent, int32_t aParentIndex, int32_t* aIndex,
nsTArray<mozilla::UniquePtr<Row>>& aRows);
void SerializeItem(nsIContent* aContent, int32_t aParentIndex,
int32_t* aIndex, nsTArray<mozilla::UniquePtr<Row>>& aRows);
void SerializeSeparator(nsIContent* aContent, int32_t aParentIndex,
int32_t* aIndex, nsTArray<mozilla::UniquePtr<Row>>& aRows);
void GetIndexInSubtree(nsIContent* aContainer, nsIContent* aContent, int32_t* aResult);
// Helper methods which we use to manage our plain array of rows.
int32_t EnsureSubtree(int32_t aIndex);
int32_t RemoveSubtree(int32_t aIndex);
int32_t InsertRow(int32_t aParentIndex, int32_t aIndex, nsIContent* aContent);
void InsertRowFor(nsIContent* aParent, nsIContent* aChild);
int32_t RemoveRow(int32_t aIndex);
void ClearRows();
void OpenContainer(int32_t aIndex);
void CloseContainer(int32_t aIndex);
int32_t FindContent(nsIContent* aContent);
void UpdateSubtreeSizes(int32_t aIndex, int32_t aCount);
void UpdateParentIndexes(int32_t aIndex, int32_t aSkip, int32_t aCount);
// Content helpers.
nsIContent* GetCell(nsIContent* aContainer, nsITreeColumn* aCol);
private:
nsCOMPtr<nsITreeBoxObject> mBoxObject;
nsCOMPtr<nsITreeSelection> mSelection;
nsCOMPtr<nsIContent> mRoot;
nsCOMPtr<nsIContent> mBody;
nsIDocument* mDocument; // WEAK
nsTArray<mozilla::UniquePtr<Row>> mRows;
};
#endif // nsTreeContentView_h__
|
