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
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications, Inc. Portions created by Netscape are
* Copyright (C) 1999, Mozilla. All Rights Reserved.
*
* Author:
* Simon Fraser <sfraser@netscape.com>
*/
#include "nsIEnumerator.h"
#include "nsCOMPtr.h"
#include "nsVoidArray.h"
class nsIDocShellTreeItem;
/*
// {13cbc281-35ae-11d5-be5b-bde0edece43c}
#define NS_DOCSHELL_FORWARDS_ENUMERATOR_CID \
{ 0x13cbc281, 0x35ae, 0x11d5, { 0xbe, 0x5b, 0xbd, 0xe0, 0xed, 0xec, 0xe4, 0x3c } }
#define NS_DOCSHELL_FORWARDS_ENUMERATOR_CONTRACTID \
"@mozilla.org/docshell/enumerator-forwards;1"
// {13cbc282-35ae-11d5-be5b-bde0edece43c}
#define NS_DOCSHELL_BACKWARDS_ENUMERATOR_CID \
{ 0x13cbc282, 0x35ae, 0x11d5, { 0xbe, 0x5b, 0xbd, 0xe0, 0xed, 0xec, 0xe4, 0x3c } }
#define NS_DOCSHELL_BACKWARDS_ENUMERATOR_CONTRACTID \
"@mozilla.org/docshell/enumerator-backwards;1"
*/
class nsDocShellEnumerator : public nsISimpleEnumerator
{
protected:
enum {
enumerateForwards,
enumerateBackwards
};
public:
nsDocShellEnumerator(PRInt32 inEnumerationDirection);
virtual ~nsDocShellEnumerator();
// nsISupports
NS_DECL_ISUPPORTS
// nsISimpleEnumerator
NS_DECL_NSISIMPLEENUMERATOR
public:
nsresult GetEnumerationRootItem(nsIDocShellTreeItem * *aEnumerationRootItem);
nsresult SetEnumerationRootItem(nsIDocShellTreeItem * aEnumerationRootItem);
nsresult GetEnumDocShellType(PRInt32 *aEnumerationItemType);
nsresult SetEnumDocShellType(PRInt32 aEnumerationItemType);
nsresult First();
protected:
nsresult EnsureDocShellArray();
nsresult ClearState();
nsresult BuildDocShellArray(nsVoidArray& inItemArray);
virtual nsresult BuildArrayRecursive(nsIDocShellTreeItem* inItem, nsVoidArray& inItemArray) = 0;
protected:
nsIDocShellTreeItem* mRootItem; // weak ref!
nsVoidArray* mItemArray; // flattened list of items with matching type
PRInt32 mCurIndex;
PRInt32 mDocShellType; // only want shells of this type
const PRInt8 mEnumerationDirection;
};
class nsDocShellForwardsEnumerator : public nsDocShellEnumerator
{
public:
nsDocShellForwardsEnumerator()
: nsDocShellEnumerator(enumerateForwards)
{
}
protected:
virtual nsresult BuildArrayRecursive(nsIDocShellTreeItem* inItem, nsVoidArray& inItemArray);
};
class nsDocShellBackwardsEnumerator : public nsDocShellEnumerator
{
public:
nsDocShellBackwardsEnumerator()
: nsDocShellEnumerator(enumerateBackwards)
{
}
protected:
virtual nsresult BuildArrayRecursive(nsIDocShellTreeItem* inItem, nsVoidArray& inItemArray);
};
|
