summaryrefslogtreecommitdiffstats
path: root/dom/xbl/XBLChildrenElement.cpp
blob: e4058a7890a5434643f321d965a08cbdb6adf377 (plain)
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
/* -*- 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/. */

#include "mozilla/dom/XBLChildrenElement.h"
#include "nsCharSeparatedTokenizer.h"
#include "mozilla/dom/NodeListBinding.h"

namespace mozilla {
namespace dom {

XBLChildrenElement::~XBLChildrenElement()
{
}

NS_IMPL_ADDREF_INHERITED(XBLChildrenElement, Element)
NS_IMPL_RELEASE_INHERITED(XBLChildrenElement, Element)

NS_INTERFACE_TABLE_HEAD(XBLChildrenElement)
  NS_INTERFACE_TABLE_INHERITED(XBLChildrenElement, nsIDOMNode,
                               nsIDOMElement)
  NS_ELEMENT_INTERFACE_TABLE_TO_MAP_SEGUE
NS_INTERFACE_MAP_END_INHERITING(Element)

NS_IMPL_ELEMENT_CLONE(XBLChildrenElement)

nsresult
XBLChildrenElement::UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
                              bool aNotify)
{
  if (aAttribute == nsGkAtoms::includes &&
      aNameSpaceID == kNameSpaceID_None) {
    mIncludes.Clear();
  }

  return Element::UnsetAttr(aNameSpaceID, aAttribute, aNotify);
}

bool
XBLChildrenElement::ParseAttribute(int32_t aNamespaceID,
                                   nsIAtom* aAttribute,
                                   const nsAString& aValue,
                                   nsAttrValue& aResult)
{
  if (aAttribute == nsGkAtoms::includes &&
      aNamespaceID == kNameSpaceID_None) {
    mIncludes.Clear();
    nsCharSeparatedTokenizer tok(aValue, '|',
                                 nsCharSeparatedTokenizer::SEPARATOR_OPTIONAL);
    while (tok.hasMoreTokens()) {
      mIncludes.AppendElement(NS_Atomize(tok.nextToken()));
    }
  }

  return false;
}

} // namespace dom
} // namespace mozilla

using namespace mozilla::dom;

NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(nsAnonymousContentList, mParent)

NS_IMPL_CYCLE_COLLECTING_ADDREF(nsAnonymousContentList)
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsAnonymousContentList)

NS_INTERFACE_TABLE_HEAD(nsAnonymousContentList)
  NS_WRAPPERCACHE_INTERFACE_TABLE_ENTRY
  NS_INTERFACE_TABLE_INHERITED(nsAnonymousContentList, nsINodeList,
                               nsIDOMNodeList)
  NS_INTERFACE_TABLE_TO_MAP_SEGUE
  NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(nsAnonymousContentList)
  NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END

NS_IMETHODIMP
nsAnonymousContentList::GetLength(uint32_t* aLength)
{
  if (!mParent) {
    *aLength = 0;
    return NS_OK;
  }

  uint32_t count = 0;
  for (nsIContent* child = mParent->GetFirstChild();
       child;
       child = child->GetNextSibling()) {
    if (child->NodeInfo()->Equals(nsGkAtoms::children, kNameSpaceID_XBL)) {
      XBLChildrenElement* point = static_cast<XBLChildrenElement*>(child);
      if (point->HasInsertedChildren()) {
        count += point->InsertedChildrenLength();
      }
      else {
        count += point->GetChildCount();
      }
    }
    else {
      ++count;
    }
  }

  *aLength = count;

  return NS_OK;
}

NS_IMETHODIMP
nsAnonymousContentList::Item(uint32_t aIndex, nsIDOMNode** aReturn)
{
  nsIContent* item = Item(aIndex);
  if (!item) {
    return NS_ERROR_FAILURE;
  }

  return CallQueryInterface(item, aReturn);
}

nsIContent*
nsAnonymousContentList::Item(uint32_t aIndex)
{
  if (!mParent) {
    return nullptr;
  }

  uint32_t remIndex = aIndex;
  for (nsIContent* child = mParent->GetFirstChild();
       child;
       child = child->GetNextSibling()) {
    if (child->NodeInfo()->Equals(nsGkAtoms::children, kNameSpaceID_XBL)) {
      XBLChildrenElement* point = static_cast<XBLChildrenElement*>(child);
      if (point->HasInsertedChildren()) {
        if (remIndex < point->InsertedChildrenLength()) {
          return point->InsertedChild(remIndex);
        }
        remIndex -= point->InsertedChildrenLength();
      }
      else {
        if (remIndex < point->GetChildCount()) {
          return point->GetChildAt(remIndex);
        }
        remIndex -= point->GetChildCount();
      }
    }
    else {
      if (remIndex == 0) {
        return child;
      }
      --remIndex;
    }
  }

  return nullptr;
}

int32_t
nsAnonymousContentList::IndexOf(nsIContent* aContent)
{
  NS_ASSERTION(!aContent->NodeInfo()->Equals(nsGkAtoms::children,
                                             kNameSpaceID_XBL),
               "Looking for insertion point");

  if (!mParent) {
    return -1;
  }

  int32_t index = 0;
  for (nsIContent* child = mParent->GetFirstChild();
       child;
       child = child->GetNextSibling()) {
    if (child->NodeInfo()->Equals(nsGkAtoms::children, kNameSpaceID_XBL)) {
      XBLChildrenElement* point = static_cast<XBLChildrenElement*>(child);
      if (point->HasInsertedChildren()) {
        int32_t insIndex = point->IndexOfInsertedChild(aContent);
        if (insIndex != -1) {
          return index + insIndex;
        }
        index += point->InsertedChildrenLength();
      }
      else {
        int32_t insIndex = point->IndexOf(aContent);
        if (insIndex != -1) {
          return index + insIndex;
        }
        index += point->GetChildCount();
      }
    }
    else {
      if (child == aContent) {
        return index;
      }
      ++index;
    }
  }

  return -1;
}

JSObject*
nsAnonymousContentList::WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto)
{
  return mozilla::dom::NodeListBinding::Wrap(cx, this, aGivenProto);
}