summaryrefslogtreecommitdiffstats
path: root/dom/html/HTMLBodyElement.cpp
blob: d030b69d7b340d8431c747e81fec2106a6572e86 (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
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "HTMLBodyElement.h"
#include "mozilla/dom/HTMLBodyElementBinding.h"
#include "nsAttrValueInlines.h"
#include "nsContentUtils.h"
#include "nsGkAtoms.h"
#include "nsStyleConsts.h"
#include "nsPresContext.h"
#include "nsIPresShell.h"
#include "nsIDocument.h"
#include "nsHTMLStyleSheet.h"
#include "nsIEditor.h"
#include "nsMappedAttributes.h"
#include "nsRuleData.h"
#include "nsIDocShell.h"
#include "nsRuleWalker.h"
#include "nsGlobalWindow.h"

NS_IMPL_NS_NEW_HTML_ELEMENT(Body)

namespace mozilla {
namespace dom {

//----------------------------------------------------------------------

HTMLBodyElement::~HTMLBodyElement()
{
}

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

NS_IMPL_ISUPPORTS_INHERITED(HTMLBodyElement, nsGenericHTMLElement,
                            nsIDOMHTMLBodyElement)

NS_IMPL_ELEMENT_CLONE(HTMLBodyElement)

NS_IMETHODIMP 
HTMLBodyElement::SetBackground(const nsAString& aBackground)
{
  ErrorResult rv;
  SetBackground(aBackground, rv);
  return rv.StealNSResult();
}

NS_IMETHODIMP
HTMLBodyElement::GetBackground(nsAString& aBackground)
{
  DOMString background;
  GetBackground(background);
  background.ToString(aBackground);
  return NS_OK;
}

NS_IMETHODIMP 
HTMLBodyElement::SetVLink(const nsAString& aVLink)
{
  ErrorResult rv;
  SetVLink(aVLink, rv);
  return rv.StealNSResult();
}

NS_IMETHODIMP
HTMLBodyElement::GetVLink(nsAString& aVLink)
{
  DOMString vLink;
  GetVLink(vLink);
  vLink.ToString(aVLink);
  return NS_OK;
}

NS_IMETHODIMP 
HTMLBodyElement::SetALink(const nsAString& aALink)
{
  ErrorResult rv;
  SetALink(aALink, rv);
  return rv.StealNSResult();
}

NS_IMETHODIMP
HTMLBodyElement::GetALink(nsAString& aALink)
{
  DOMString aLink;
  GetALink(aLink);
  aLink.ToString(aALink);
  return NS_OK;
}

NS_IMETHODIMP 
HTMLBodyElement::SetLink(const nsAString& aLink)
{
  ErrorResult rv;
  SetLink(aLink, rv);
  return rv.StealNSResult();
}

NS_IMETHODIMP
HTMLBodyElement::GetLink(nsAString& aLink)
{
  DOMString link;
  GetLink(link);
  link.ToString(aLink);
  return NS_OK;
}

NS_IMETHODIMP 
HTMLBodyElement::SetText(const nsAString& aText)
{
  ErrorResult rv;
  SetText(aText, rv);
  return rv.StealNSResult();
}

NS_IMETHODIMP
HTMLBodyElement::GetText(nsAString& aText)
{
  DOMString text;
  GetText(text);
  text.ToString(aText);
  return NS_OK;
}

NS_IMETHODIMP 
HTMLBodyElement::SetBgColor(const nsAString& aBgColor)
{
  ErrorResult rv;
  SetBgColor(aBgColor, rv);
  return rv.StealNSResult();
}

NS_IMETHODIMP
HTMLBodyElement::GetBgColor(nsAString& aBgColor)
{
  DOMString bgColor;
  GetBgColor(bgColor);
  bgColor.ToString(aBgColor);
  return NS_OK;
}

bool
HTMLBodyElement::ParseAttribute(int32_t aNamespaceID,
                                nsIAtom* aAttribute,
                                const nsAString& aValue,
                                nsAttrValue& aResult)
{
  if (aNamespaceID == kNameSpaceID_None) {
    if (aAttribute == nsGkAtoms::bgcolor ||
        aAttribute == nsGkAtoms::text ||
        aAttribute == nsGkAtoms::link ||
        aAttribute == nsGkAtoms::alink ||
        aAttribute == nsGkAtoms::vlink) {
      return aResult.ParseColor(aValue);
    }
    if (aAttribute == nsGkAtoms::marginwidth ||
        aAttribute == nsGkAtoms::marginheight ||
        aAttribute == nsGkAtoms::topmargin ||
        aAttribute == nsGkAtoms::bottommargin ||
        aAttribute == nsGkAtoms::leftmargin ||
        aAttribute == nsGkAtoms::rightmargin) {
      return aResult.ParseIntWithBounds(aValue, 0);
    }
  }

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

void
HTMLBodyElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
                                       nsRuleData* aData)
{
  if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Display)) {
    // When display if first asked for, go ahead and get our colors set up.
    nsIPresShell *presShell = aData->mPresContext->GetPresShell();
    if (presShell) {
      nsIDocument *doc = presShell->GetDocument();
      if (doc) {
        nsHTMLStyleSheet* styleSheet = doc->GetAttributeStyleSheet();
        if (styleSheet) {
          const nsAttrValue* value;
          nscolor color;
          value = aAttributes->GetAttr(nsGkAtoms::link);
          if (value && value->GetColorValue(color)) {
            styleSheet->SetLinkColor(color);
          }

          value = aAttributes->GetAttr(nsGkAtoms::alink);
          if (value && value->GetColorValue(color)) {
            styleSheet->SetActiveLinkColor(color);
          }

          value = aAttributes->GetAttr(nsGkAtoms::vlink);
          if (value && value->GetColorValue(color)) {
            styleSheet->SetVisitedLinkColor(color);
          }
        }
      }
    }
  }

  if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Color)) {
    nsCSSValue *colorValue = aData->ValueForColor();
    if (colorValue->GetUnit() == eCSSUnit_Null &&
        aData->mPresContext->UseDocumentColors()) {
      // color: color
      nscolor color;
      const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::text);
      if (value && value->GetColorValue(color))
        colorValue->SetColorValue(color);
    }
  }

  nsGenericHTMLElement::MapBackgroundAttributesInto(aAttributes, aData);
  nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
}

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

NS_IMETHODIMP_(bool)
HTMLBodyElement::IsAttributeMapped(const nsIAtom* aAttribute) const
{
  static const MappedAttributeEntry attributes[] = {
    { &nsGkAtoms::link },
    { &nsGkAtoms::vlink },
    { &nsGkAtoms::alink },
    { &nsGkAtoms::text },
    { &nsGkAtoms::marginwidth },
    { &nsGkAtoms::marginheight },
    { &nsGkAtoms::topmargin },
    { &nsGkAtoms::rightmargin },
    { &nsGkAtoms::bottommargin },
    { &nsGkAtoms::leftmargin },
    { nullptr },
  };

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

  return FindAttributeDependence(aAttribute, map);
}

already_AddRefed<nsIEditor>
HTMLBodyElement::GetAssociatedEditor()
{
  nsCOMPtr<nsIEditor> editor = GetEditorInternal();
  if (editor) {
    return editor.forget();
  }

  // Make sure this is the actual body of the document
  if (!IsCurrentBodyElement()) {
    return nullptr;
  }

  // For designmode, try to get document's editor
  nsPresContext* presContext = GetPresContext(eForComposedDoc);
  if (!presContext) {
    return nullptr;
  }

  nsCOMPtr<nsIDocShell> docShell = presContext->GetDocShell();
  if (!docShell) {
    return nullptr;
  }

  docShell->GetEditor(getter_AddRefs(editor));
  return editor.forget();
}

bool
HTMLBodyElement::IsEventAttributeName(nsIAtom *aName)
{
  return nsContentUtils::IsEventAttributeName(aName,
                                              EventNameType_HTML |
                                              EventNameType_HTMLBodyOrFramesetOnly);
}

nsresult
HTMLBodyElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
                            nsIContent* aBindingParent,
                            bool aCompileEventHandlers)
{
  nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
                                                 aBindingParent,
                                                 aCompileEventHandlers);
  NS_ENSURE_SUCCESS(rv, rv);
  return mAttrsAndChildren.ForceMapped(this, OwnerDoc());
}

nsresult
HTMLBodyElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
                              const nsAttrValue* aValue,
                              const nsAttrValue* aOldValue, bool aNotify)
{
  nsresult rv = nsGenericHTMLElement::AfterSetAttr(aNameSpaceID,
                                                   aName, aValue, aOldValue,
                                                   aNotify);
  NS_ENSURE_SUCCESS(rv, rv);
  // if the last mapped attribute was removed, don't clear the
  // nsMappedAttributes, our style can still depend on the containing frame element
  if (!aValue && IsAttributeMapped(aName)) {
    nsresult rv = mAttrsAndChildren.ForceMapped(this, OwnerDoc());
    NS_ENSURE_SUCCESS(rv, rv);
  }

  return NS_OK;
}

#define EVENT(name_, id_, type_, struct_) /* nothing; handled by the superclass */
// nsGenericHTMLElement::GetOnError returns
// already_AddRefed<EventHandlerNonNull> while other getters return
// EventHandlerNonNull*, so allow passing in the type to use here.
#define WINDOW_EVENT_HELPER(name_, type_)                                      \
  type_*                                                                       \
  HTMLBodyElement::GetOn##name_()                                              \
  {                                                                            \
    if (nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow()) {              \
      nsGlobalWindow* globalWin = nsGlobalWindow::Cast(win);                   \
      return globalWin->GetOn##name_();                                        \
    }                                                                          \
    return nullptr;                                                            \
  }                                                                            \
  void                                                                         \
  HTMLBodyElement::SetOn##name_(type_* handler)                                \
  {                                                                            \
    nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow();                    \
    if (!win) {                                                                \
      return;                                                                  \
    }                                                                          \
                                                                               \
    nsGlobalWindow* globalWin = nsGlobalWindow::Cast(win);                     \
    return globalWin->SetOn##name_(handler);                                   \
  }
#define WINDOW_EVENT(name_, id_, type_, struct_)                               \
  WINDOW_EVENT_HELPER(name_, EventHandlerNonNull)
#define BEFOREUNLOAD_EVENT(name_, id_, type_, struct_)                         \
  WINDOW_EVENT_HELPER(name_, OnBeforeUnloadEventHandlerNonNull)
#include "mozilla/EventNameList.h" // IWYU pragma: keep
#undef BEFOREUNLOAD_EVENT
#undef WINDOW_EVENT
#undef WINDOW_EVENT_HELPER
#undef EVENT

} // namespace dom
} // namespace mozilla