summaryrefslogtreecommitdiffstats
path: root/dom/html/HTMLTableCellElement.cpp
blob: 8f4ef28c2fa66782297f1ac62a28d7af51bf43da (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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
/* -*- 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/HTMLTableCellElement.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/HTMLTableElement.h"
#include "mozilla/dom/HTMLTableRowElement.h"
#include "mozilla/MappedDeclarations.h"
#include "nsMappedAttributes.h"
#include "nsAttrValueInlines.h"
#include "celldata.h"
#include "mozilla/dom/HTMLTableCellElementBinding.h"

namespace {
enum class StyleCellScope : uint8_t { Row, Col, Rowgroup, Colgroup };
}  // namespace

NS_IMPL_NS_NEW_HTML_ELEMENT(TableCell)

namespace mozilla::dom {

HTMLTableCellElement::~HTMLTableCellElement() = default;

JSObject* HTMLTableCellElement::WrapNode(JSContext* aCx,
                                         JS::Handle<JSObject*> aGivenProto) {
  return HTMLTableCellElement_Binding::Wrap(aCx, this, aGivenProto);
}

NS_IMPL_ELEMENT_CLONE(HTMLTableCellElement)

// protected method
HTMLTableRowElement* HTMLTableCellElement::GetRow() const {
  return HTMLTableRowElement::FromNodeOrNull(GetParent());
}

// protected method
HTMLTableElement* HTMLTableCellElement::GetTable() const {
  nsIContent* parent = GetParent();
  if (!parent) {
    return nullptr;
  }

  // parent should be a row.
  nsIContent* section = parent->GetParent();
  if (!section) {
    return nullptr;
  }

  if (section->IsHTMLElement(nsGkAtoms::table)) {
    // XHTML, without a row group.
    return static_cast<HTMLTableElement*>(section);
  }

  // We have a row group.
  nsIContent* result = section->GetParent();
  if (result && result->IsHTMLElement(nsGkAtoms::table)) {
    return static_cast<HTMLTableElement*>(result);
  }

  return nullptr;
}

int32_t HTMLTableCellElement::CellIndex() const {
  HTMLTableRowElement* row = GetRow();
  if (!row) {
    return -1;
  }

  nsIHTMLCollection* cells = row->Cells();
  if (!cells) {
    return -1;
  }

  uint32_t numCells = cells->Length();
  for (uint32_t i = 0; i < numCells; i++) {
    if (cells->Item(i) == this) {
      return i;
    }
  }

  return -1;
}

nsMappedAttributes*
HTMLTableCellElement::GetMappedAttributesInheritedFromTable() const {
  if (HTMLTableElement* table = GetTable()) {
    return table->GetAttributesMappedForCell();
  }

  return nullptr;
}

void HTMLTableCellElement::GetAlign(DOMString& aValue) {
  if (!GetAttr(kNameSpaceID_None, nsGkAtoms::align, aValue)) {
    // There's no align attribute, ask the row for the alignment.
    HTMLTableRowElement* row = GetRow();
    if (row) {
      row->GetAlign(aValue);
    }
  }
}

static const nsAttrValue::EnumTable kCellScopeTable[] = {
    {"row", StyleCellScope::Row},
    {"col", StyleCellScope::Col},
    {"rowgroup", StyleCellScope::Rowgroup},
    {"colgroup", StyleCellScope::Colgroup},
    {nullptr, 0}};

void HTMLTableCellElement::GetScope(DOMString& aScope) {
  GetEnumAttr(nsGkAtoms::scope, nullptr, aScope);
}

bool HTMLTableCellElement::ParseAttribute(int32_t aNamespaceID,
                                          nsAtom* aAttribute,
                                          const nsAString& aValue,
                                          nsIPrincipal* aMaybeScriptedPrincipal,
                                          nsAttrValue& aResult) {
  if (aNamespaceID == kNameSpaceID_None) {
    /* ignore these attributes, stored simply as strings
       abbr, axis, ch, headers
    */
    if (aAttribute == nsGkAtoms::colspan) {
      aResult.ParseClampedNonNegativeInt(aValue, 1, 1, MAX_COLSPAN);
      return true;
    }
    if (aAttribute == nsGkAtoms::rowspan) {
      aResult.ParseClampedNonNegativeInt(aValue, 1, 0, MAX_ROWSPAN);
      // quirks mode does not honor the special html 4 value of 0
      if (aResult.GetIntegerValue() == 0 && InNavQuirksMode(OwnerDoc())) {
        aResult.SetTo(1, &aValue);
      }
      return true;
    }
    if (aAttribute == nsGkAtoms::height) {
      return aResult.ParseNonzeroHTMLDimension(aValue);
    }
    if (aAttribute == nsGkAtoms::width) {
      return aResult.ParseNonzeroHTMLDimension(aValue);
    }
    if (aAttribute == nsGkAtoms::align) {
      return ParseTableCellHAlignValue(aValue, aResult);
    }
    if (aAttribute == nsGkAtoms::bgcolor) {
      return aResult.ParseColor(aValue);
    }
    if (aAttribute == nsGkAtoms::scope) {
      return aResult.ParseEnumValue(aValue, kCellScopeTable, false);
    }
    if (aAttribute == nsGkAtoms::valign) {
      return ParseTableVAlignValue(aValue, aResult);
    }
  }

  return nsGenericHTMLElement::ParseBackgroundAttribute(
             aNamespaceID, aAttribute, aValue, aResult) ||
         nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
                                              aMaybeScriptedPrincipal, aResult);
}

void HTMLTableCellElement::MapAttributesIntoRule(
    const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
  MapImageSizeAttributesInto(aAttributes, aDecls);

  if (!aDecls.PropertyIsSet(eCSSProperty_white_space)) {
    // nowrap: enum
    if (aAttributes->GetAttr(nsGkAtoms::nowrap)) {
      // See if our width is not a nonzero integer width.
      const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width);
      nsCompatibility mode = aDecls.Document()->GetCompatibilityMode();
      if (!value || value->Type() != nsAttrValue::eInteger ||
          value->GetIntegerValue() == 0 || eCompatibility_NavQuirks != mode) {
        aDecls.SetKeywordValue(eCSSProperty_white_space,
                               StyleWhiteSpace::Nowrap);
      }
    }
  }

  nsGenericHTMLElement::MapDivAlignAttributeInto(aAttributes, aDecls);
  nsGenericHTMLElement::MapVAlignAttributeInto(aAttributes, aDecls);
  nsGenericHTMLElement::MapBackgroundAttributesInto(aAttributes, aDecls);
  nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aDecls);
}

NS_IMETHODIMP_(bool)
HTMLTableCellElement::IsAttributeMapped(const nsAtom* aAttribute) const {
  static const MappedAttributeEntry attributes[] = {
    {nsGkAtoms::align},
    {nsGkAtoms::valign},
    {nsGkAtoms::nowrap},
#if 0
    // XXXldb If these are implemented, they might need to move to
    // GetAttributeChangeHint (depending on how, and preferably not).
    { nsGkAtoms::abbr },
    { nsGkAtoms::axis },
    { nsGkAtoms::headers },
    { nsGkAtoms::scope },
#endif
    {nsGkAtoms::width},
    {nsGkAtoms::height},
    {nullptr}
  };

  static const MappedAttributeEntry* const map[] = {
      attributes,
      sCommonAttributeMap,
      sBackgroundAttributeMap,
  };

  return FindAttributeDependence(aAttribute, map);
}

nsMapRuleToAttributesFunc HTMLTableCellElement::GetAttributeMappingFunction()
    const {
  return &MapAttributesIntoRule;
}

}  // namespace mozilla::dom