layout/style/nsCSSRules.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/layout/style/nsCSSRules.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,3062 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +/* rules in a CSS stylesheet other than style rules (e.g., @import rules) */
    1.10 +
    1.11 +#include "mozilla/Attributes.h"
    1.12 +
    1.13 +#include "nsCSSRules.h"
    1.14 +#include "nsCSSValue.h"
    1.15 +#include "mozilla/MemoryReporting.h"
    1.16 +#include "mozilla/css/ImportRule.h"
    1.17 +#include "mozilla/css/NameSpaceRule.h"
    1.18 +
    1.19 +#include "nsString.h"
    1.20 +#include "nsIAtom.h"
    1.21 +
    1.22 +#include "nsCSSProps.h"
    1.23 +#include "nsCSSStyleSheet.h"
    1.24 +
    1.25 +#include "nsCOMPtr.h"
    1.26 +#include "nsIDOMCSSStyleSheet.h"
    1.27 +#include "nsIMediaList.h"
    1.28 +#include "nsICSSRuleList.h"
    1.29 +#include "nsIDocument.h"
    1.30 +#include "nsPresContext.h"
    1.31 +
    1.32 +#include "nsContentUtils.h"
    1.33 +#include "nsError.h"
    1.34 +#include "nsStyleUtil.h"
    1.35 +#include "mozilla/css/Declaration.h"
    1.36 +#include "nsCSSParser.h"
    1.37 +#include "nsPrintfCString.h"
    1.38 +#include "nsDOMClassInfoID.h"
    1.39 +#include "mozilla/dom/CSSStyleDeclarationBinding.h"
    1.40 +#include "StyleRule.h"
    1.41 +#include "nsFont.h"
    1.42 +#include "nsIURI.h"
    1.43 +#include "mozAutoDocUpdate.h"
    1.44 +
    1.45 +using namespace mozilla;
    1.46 +
    1.47 +#define IMPL_STYLE_RULE_INHERIT_GET_DOM_RULE_WEAK(class_, super_) \
    1.48 +  /* virtual */ nsIDOMCSSRule* class_::GetDOMRule()               \
    1.49 +  { return this; }                                                \
    1.50 +  /* virtual */ nsIDOMCSSRule* class_::GetExistingDOMRule()       \
    1.51 +  { return this; }
    1.52 +#define IMPL_STYLE_RULE_INHERIT_MAP_RULE_INFO_INTO(class_, super_) \
    1.53 +/* virtual */ void class_::MapRuleInfoInto(nsRuleData* aRuleData) \
    1.54 +  { NS_ABORT_IF_FALSE(false, "should not be called"); }
    1.55 +
    1.56 +#define IMPL_STYLE_RULE_INHERIT(class_, super_) \
    1.57 +IMPL_STYLE_RULE_INHERIT_GET_DOM_RULE_WEAK(class_, super_) \
    1.58 +IMPL_STYLE_RULE_INHERIT_MAP_RULE_INFO_INTO(class_, super_)
    1.59 +
    1.60 +// base class for all rule types in a CSS style sheet
    1.61 +
    1.62 +namespace mozilla {
    1.63 +namespace css {
    1.64 +
    1.65 +nsCSSStyleSheet*
    1.66 +Rule::GetStyleSheet() const
    1.67 +{
    1.68 +  if (!(mSheet & 0x1)) {
    1.69 +    return reinterpret_cast<nsCSSStyleSheet*>(mSheet);
    1.70 +  }
    1.71 +
    1.72 +  return nullptr;
    1.73 +}
    1.74 +
    1.75 +nsHTMLCSSStyleSheet*
    1.76 +Rule::GetHTMLCSSStyleSheet() const
    1.77 +{
    1.78 +  if (mSheet & 0x1) {
    1.79 +    return reinterpret_cast<nsHTMLCSSStyleSheet*>(mSheet & ~uintptr_t(0x1));
    1.80 +  }
    1.81 +
    1.82 +  return nullptr;
    1.83 +}
    1.84 +
    1.85 +/* virtual */ void
    1.86 +Rule::SetStyleSheet(nsCSSStyleSheet* aSheet)
    1.87 +{
    1.88 +  // We don't reference count this up reference. The style sheet
    1.89 +  // will tell us when it's going away or when we're detached from
    1.90 +  // it.
    1.91 +  mSheet = reinterpret_cast<uintptr_t>(aSheet);
    1.92 +}
    1.93 +
    1.94 +void
    1.95 +Rule::SetHTMLCSSStyleSheet(nsHTMLCSSStyleSheet* aSheet)
    1.96 +{
    1.97 +  // We don't reference count this up reference. The style sheet
    1.98 +  // will tell us when it's going away or when we're detached from
    1.99 +  // it.
   1.100 +  mSheet = reinterpret_cast<uintptr_t>(aSheet);
   1.101 +  mSheet |= 0x1;
   1.102 +}
   1.103 +
   1.104 +nsresult
   1.105 +Rule::GetParentRule(nsIDOMCSSRule** aParentRule)
   1.106 +{
   1.107 +  if (mParentRule) {
   1.108 +    NS_IF_ADDREF(*aParentRule = mParentRule->GetDOMRule());
   1.109 +  } else {
   1.110 +    *aParentRule = nullptr;
   1.111 +  }
   1.112 +  return NS_OK;
   1.113 +}
   1.114 +
   1.115 +nsresult
   1.116 +Rule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
   1.117 +{
   1.118 +  NS_ENSURE_ARG_POINTER(aSheet);
   1.119 +
   1.120 +  NS_IF_ADDREF(*aSheet = GetStyleSheet());
   1.121 +  return NS_OK;
   1.122 +}
   1.123 +
   1.124 +size_t
   1.125 +Rule::SizeOfCOMArrayElementIncludingThis(css::Rule* aElement,
   1.126 +                                         MallocSizeOf aMallocSizeOf,
   1.127 +                                         void* aData)
   1.128 +{
   1.129 +  return aElement->SizeOfIncludingThis(aMallocSizeOf);
   1.130 +}
   1.131 +
   1.132 +// -------------------------------
   1.133 +// Style Rule List for group rules
   1.134 +//
   1.135 +
   1.136 +class GroupRuleRuleList MOZ_FINAL : public nsICSSRuleList
   1.137 +{
   1.138 +public:
   1.139 +  GroupRuleRuleList(GroupRule *aGroupRule);
   1.140 +
   1.141 +  NS_DECL_ISUPPORTS
   1.142 +
   1.143 +  virtual nsIDOMCSSRule*
   1.144 +  IndexedGetter(uint32_t aIndex, bool& aFound) MOZ_OVERRIDE;
   1.145 +  virtual uint32_t
   1.146 +  Length() MOZ_OVERRIDE;
   1.147 +
   1.148 +  void DropReference() { mGroupRule = nullptr; }
   1.149 +
   1.150 +private:
   1.151 +  ~GroupRuleRuleList();
   1.152 +
   1.153 +private:
   1.154 +  GroupRule* mGroupRule;
   1.155 +};
   1.156 +
   1.157 +GroupRuleRuleList::GroupRuleRuleList(GroupRule *aGroupRule)
   1.158 +{
   1.159 +  // Not reference counted to avoid circular references.
   1.160 +  // The rule will tell us when its going away.
   1.161 +  mGroupRule = aGroupRule;
   1.162 +}
   1.163 +
   1.164 +GroupRuleRuleList::~GroupRuleRuleList()
   1.165 +{
   1.166 +}
   1.167 +
   1.168 +// QueryInterface implementation for GroupRuleRuleList
   1.169 +NS_INTERFACE_MAP_BEGIN(GroupRuleRuleList)
   1.170 +  NS_INTERFACE_MAP_ENTRY(nsICSSRuleList)
   1.171 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRuleList)
   1.172 +  NS_INTERFACE_MAP_ENTRY(nsISupports)
   1.173 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSRuleList)
   1.174 +NS_INTERFACE_MAP_END
   1.175 +
   1.176 +
   1.177 +NS_IMPL_ADDREF(GroupRuleRuleList)
   1.178 +NS_IMPL_RELEASE(GroupRuleRuleList)
   1.179 +
   1.180 +uint32_t
   1.181 +GroupRuleRuleList::Length()
   1.182 +{
   1.183 +  if (!mGroupRule) {
   1.184 +    return 0;
   1.185 +  }
   1.186 +
   1.187 +  return SafeCast<uint32_t>(mGroupRule->StyleRuleCount());
   1.188 +}
   1.189 +
   1.190 +nsIDOMCSSRule*
   1.191 +GroupRuleRuleList::IndexedGetter(uint32_t aIndex, bool& aFound)
   1.192 +{
   1.193 +  aFound = false;
   1.194 +
   1.195 +  if (mGroupRule) {
   1.196 +    nsRefPtr<Rule> rule = mGroupRule->GetStyleRuleAt(aIndex);
   1.197 +    if (rule) {
   1.198 +      aFound = true;
   1.199 +      return rule->GetDOMRule();
   1.200 +    }
   1.201 +  }
   1.202 +
   1.203 +  return nullptr;
   1.204 +}
   1.205 +
   1.206 +} // namespace css
   1.207 +} // namespace mozilla
   1.208 +
   1.209 +// -------------------------------------------
   1.210 +// CharsetRule
   1.211 +//
   1.212 +
   1.213 +// Must be outside namespace
   1.214 +DOMCI_DATA(CSSCharsetRule, css::CharsetRule)
   1.215 +
   1.216 +namespace mozilla {
   1.217 +namespace css {
   1.218 +
   1.219 +CharsetRule::CharsetRule(const nsAString& aEncoding)
   1.220 +  : Rule(),
   1.221 +    mEncoding(aEncoding)
   1.222 +{
   1.223 +}
   1.224 +
   1.225 +CharsetRule::CharsetRule(const CharsetRule& aCopy)
   1.226 +  : Rule(aCopy),
   1.227 +    mEncoding(aCopy.mEncoding)
   1.228 +{
   1.229 +}
   1.230 +
   1.231 +NS_IMPL_ADDREF(CharsetRule)
   1.232 +NS_IMPL_RELEASE(CharsetRule)
   1.233 +
   1.234 +// QueryInterface implementation for CharsetRule
   1.235 +NS_INTERFACE_MAP_BEGIN(CharsetRule)
   1.236 +  NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
   1.237 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
   1.238 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSCharsetRule)
   1.239 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
   1.240 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSCharsetRule)
   1.241 +NS_INTERFACE_MAP_END
   1.242 +
   1.243 +IMPL_STYLE_RULE_INHERIT(CharsetRule, Rule)
   1.244 +
   1.245 +#ifdef DEBUG
   1.246 +/* virtual */ void
   1.247 +CharsetRule::List(FILE* out, int32_t aIndent) const
   1.248 +{
   1.249 +  // Indent
   1.250 +  for (int32_t indent = aIndent; --indent >= 0; ) fputs("  ", out);
   1.251 +
   1.252 +  fputs("@charset \"", out);
   1.253 +  fputs(NS_LossyConvertUTF16toASCII(mEncoding).get(), out);
   1.254 +  fputs("\"\n", out);
   1.255 +}
   1.256 +#endif
   1.257 +
   1.258 +/* virtual */ int32_t
   1.259 +CharsetRule::GetType() const
   1.260 +{
   1.261 +  return Rule::CHARSET_RULE;
   1.262 +}
   1.263 +
   1.264 +/* virtual */ already_AddRefed<Rule>
   1.265 +CharsetRule::Clone() const
   1.266 +{
   1.267 +  nsRefPtr<Rule> clone = new CharsetRule(*this);
   1.268 +  return clone.forget();
   1.269 +}
   1.270 +
   1.271 +NS_IMETHODIMP
   1.272 +CharsetRule::GetEncoding(nsAString& aEncoding)
   1.273 +{
   1.274 +  aEncoding = mEncoding;
   1.275 +  return NS_OK;
   1.276 +}
   1.277 +
   1.278 +NS_IMETHODIMP
   1.279 +CharsetRule::SetEncoding(const nsAString& aEncoding)
   1.280 +{
   1.281 +  mEncoding = aEncoding;
   1.282 +  return NS_OK;
   1.283 +}
   1.284 +
   1.285 +NS_IMETHODIMP
   1.286 +CharsetRule::GetType(uint16_t* aType)
   1.287 +{
   1.288 +  *aType = nsIDOMCSSRule::CHARSET_RULE;
   1.289 +  return NS_OK;
   1.290 +}
   1.291 +
   1.292 +NS_IMETHODIMP
   1.293 +CharsetRule::GetCssText(nsAString& aCssText)
   1.294 +{
   1.295 +  aCssText.AssignLiteral("@charset \"");
   1.296 +  aCssText.Append(mEncoding);
   1.297 +  aCssText.AppendLiteral("\";");
   1.298 +  return NS_OK;
   1.299 +}
   1.300 +
   1.301 +NS_IMETHODIMP
   1.302 +CharsetRule::SetCssText(const nsAString& aCssText)
   1.303 +{
   1.304 +  return NS_ERROR_NOT_IMPLEMENTED;
   1.305 +}
   1.306 +
   1.307 +NS_IMETHODIMP
   1.308 +CharsetRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
   1.309 +{
   1.310 +  return Rule::GetParentStyleSheet(aSheet);
   1.311 +}
   1.312 +
   1.313 +NS_IMETHODIMP
   1.314 +CharsetRule::GetParentRule(nsIDOMCSSRule** aParentRule)
   1.315 +{
   1.316 +  return Rule::GetParentRule(aParentRule);
   1.317 +}
   1.318 +
   1.319 +/* virtual */ size_t
   1.320 +CharsetRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
   1.321 +{
   1.322 +  return aMallocSizeOf(this);
   1.323 +
   1.324 +  // Measurement of the following members may be added later if DMD finds it is
   1.325 +  // worthwhile:
   1.326 +  // - mEncoding
   1.327 +}
   1.328 +
   1.329 +// -------------------------------------------
   1.330 +// ImportRule
   1.331 +//
   1.332 +
   1.333 +ImportRule::ImportRule(nsMediaList* aMedia, const nsString& aURLSpec)
   1.334 +  : Rule()
   1.335 +  , mURLSpec(aURLSpec)
   1.336 +  , mMedia(aMedia)
   1.337 +{
   1.338 +  // XXXbz This is really silly.... the mMedia here will be replaced
   1.339 +  // with itself if we manage to load a sheet.  Which should really
   1.340 +  // never fail nowadays, in sane cases.
   1.341 +}
   1.342 +
   1.343 +ImportRule::ImportRule(const ImportRule& aCopy)
   1.344 +  : Rule(aCopy),
   1.345 +    mURLSpec(aCopy.mURLSpec)
   1.346 +{
   1.347 +  // Whether or not an @import rule has a null sheet is a permanent
   1.348 +  // property of that @import rule, since it is null only if the target
   1.349 +  // sheet failed security checks.
   1.350 +  if (aCopy.mChildSheet) {
   1.351 +    nsRefPtr<nsCSSStyleSheet> sheet =
   1.352 +      aCopy.mChildSheet->Clone(nullptr, this, nullptr, nullptr);
   1.353 +    SetSheet(sheet);
   1.354 +    // SetSheet sets mMedia appropriately
   1.355 +  }
   1.356 +}
   1.357 +
   1.358 +ImportRule::~ImportRule()
   1.359 +{
   1.360 +  if (mChildSheet) {
   1.361 +    mChildSheet->SetOwnerRule(nullptr);
   1.362 +  }
   1.363 +}
   1.364 +
   1.365 +NS_IMPL_ADDREF(ImportRule)
   1.366 +NS_IMPL_RELEASE(ImportRule)
   1.367 +
   1.368 +// QueryInterface implementation for ImportRule
   1.369 +NS_INTERFACE_MAP_BEGIN(ImportRule)
   1.370 +  NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
   1.371 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
   1.372 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSImportRule)
   1.373 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
   1.374 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSImportRule)
   1.375 +NS_INTERFACE_MAP_END
   1.376 +
   1.377 +IMPL_STYLE_RULE_INHERIT(ImportRule, Rule)
   1.378 +
   1.379 +#ifdef DEBUG
   1.380 +/* virtual */ void
   1.381 +ImportRule::List(FILE* out, int32_t aIndent) const
   1.382 +{
   1.383 +  // Indent
   1.384 +  for (int32_t indent = aIndent; --indent >= 0; ) fputs("  ", out);
   1.385 +
   1.386 +  fputs("@import \"", out);
   1.387 +  fputs(NS_LossyConvertUTF16toASCII(mURLSpec).get(), out);
   1.388 +  fputs("\" ", out);
   1.389 +
   1.390 +  nsAutoString mediaText;
   1.391 +  mMedia->GetText(mediaText);
   1.392 +  fputs(NS_LossyConvertUTF16toASCII(mediaText).get(), out);
   1.393 +  fputs("\n", out);
   1.394 +}
   1.395 +#endif
   1.396 +
   1.397 +/* virtual */ int32_t
   1.398 +ImportRule::GetType() const
   1.399 +{
   1.400 +  return Rule::IMPORT_RULE;
   1.401 +}
   1.402 +
   1.403 +/* virtual */ already_AddRefed<Rule>
   1.404 +ImportRule::Clone() const
   1.405 +{
   1.406 +  nsRefPtr<Rule> clone = new ImportRule(*this);
   1.407 +  return clone.forget();
   1.408 +}
   1.409 +
   1.410 +void
   1.411 +ImportRule::SetSheet(nsCSSStyleSheet* aSheet)
   1.412 +{
   1.413 +  NS_PRECONDITION(aSheet, "null arg");
   1.414 +
   1.415 +  // set the new sheet
   1.416 +  mChildSheet = aSheet;
   1.417 +  aSheet->SetOwnerRule(this);
   1.418 +
   1.419 +  // set our medialist to be the same as the sheet's medialist
   1.420 +  mMedia = mChildSheet->Media();
   1.421 +}
   1.422 +
   1.423 +NS_IMETHODIMP
   1.424 +ImportRule::GetType(uint16_t* aType)
   1.425 +{
   1.426 +  NS_ENSURE_ARG_POINTER(aType);
   1.427 +  *aType = nsIDOMCSSRule::IMPORT_RULE;
   1.428 +  return NS_OK;
   1.429 +}
   1.430 +
   1.431 +NS_IMETHODIMP
   1.432 +ImportRule::GetCssText(nsAString& aCssText)
   1.433 +{
   1.434 +  aCssText.AssignLiteral("@import url(");
   1.435 +  nsStyleUtil::AppendEscapedCSSString(mURLSpec, aCssText);
   1.436 +  aCssText.Append(NS_LITERAL_STRING(")"));
   1.437 +  if (mMedia) {
   1.438 +    nsAutoString mediaText;
   1.439 +    mMedia->GetText(mediaText);
   1.440 +    if (!mediaText.IsEmpty()) {
   1.441 +      aCssText.AppendLiteral(" ");
   1.442 +      aCssText.Append(mediaText);
   1.443 +    }
   1.444 +  }
   1.445 +  aCssText.AppendLiteral(";");
   1.446 +  return NS_OK;
   1.447 +}
   1.448 +
   1.449 +NS_IMETHODIMP
   1.450 +ImportRule::SetCssText(const nsAString& aCssText)
   1.451 +{
   1.452 +  return NS_ERROR_NOT_IMPLEMENTED;
   1.453 +}
   1.454 +
   1.455 +NS_IMETHODIMP
   1.456 +ImportRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
   1.457 +{
   1.458 +  return Rule::GetParentStyleSheet(aSheet);
   1.459 +}
   1.460 +
   1.461 +NS_IMETHODIMP
   1.462 +ImportRule::GetParentRule(nsIDOMCSSRule** aParentRule)
   1.463 +{
   1.464 +  return Rule::GetParentRule(aParentRule);
   1.465 +}
   1.466 +
   1.467 +NS_IMETHODIMP
   1.468 +ImportRule::GetHref(nsAString & aHref)
   1.469 +{
   1.470 +  aHref = mURLSpec;
   1.471 +  return NS_OK;
   1.472 +}
   1.473 +
   1.474 +NS_IMETHODIMP
   1.475 +ImportRule::GetMedia(nsIDOMMediaList * *aMedia)
   1.476 +{
   1.477 +  NS_ENSURE_ARG_POINTER(aMedia);
   1.478 +
   1.479 +  NS_IF_ADDREF(*aMedia = mMedia);
   1.480 +  return NS_OK;
   1.481 +}
   1.482 +
   1.483 +NS_IMETHODIMP
   1.484 +ImportRule::GetStyleSheet(nsIDOMCSSStyleSheet * *aStyleSheet)
   1.485 +{
   1.486 +  NS_ENSURE_ARG_POINTER(aStyleSheet);
   1.487 +
   1.488 +  NS_IF_ADDREF(*aStyleSheet = mChildSheet);
   1.489 +  return NS_OK;
   1.490 +}
   1.491 +
   1.492 +/* virtual */ size_t
   1.493 +ImportRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
   1.494 +{
   1.495 +  return aMallocSizeOf(this);
   1.496 +
   1.497 +  // Measurement of the following members may be added later if DMD finds it is
   1.498 +  // worthwhile:
   1.499 +  // - mURLSpec
   1.500 +  //
   1.501 +  // The following members are not measured:
   1.502 +  // - mMedia, because it is measured via nsCSSStyleSheet::mMedia
   1.503 +  // - mChildSheet, because it is measured via nsCSSStyleSheetInner::mSheets
   1.504 +}
   1.505 +
   1.506 +} // namespace css
   1.507 +} // namespace mozilla
   1.508 +
   1.509 +// must be outside the namespace
   1.510 +DOMCI_DATA(CSSImportRule, css::ImportRule)
   1.511 +
   1.512 +namespace mozilla {
   1.513 +namespace css {
   1.514 +
   1.515 +GroupRule::GroupRule()
   1.516 +  : Rule()
   1.517 +{
   1.518 +}
   1.519 +
   1.520 +static bool
   1.521 +SetParentRuleReference(Rule* aRule, void* aParentRule)
   1.522 +{
   1.523 +  GroupRule* parentRule = static_cast<GroupRule*>(aParentRule);
   1.524 +  aRule->SetParentRule(parentRule);
   1.525 +  return true;
   1.526 +}
   1.527 +
   1.528 +GroupRule::GroupRule(const GroupRule& aCopy)
   1.529 +  : Rule(aCopy)
   1.530 +{
   1.531 +  const_cast<GroupRule&>(aCopy).mRules.EnumerateForwards(GroupRule::CloneRuleInto, &mRules);
   1.532 +  mRules.EnumerateForwards(SetParentRuleReference, this);
   1.533 +}
   1.534 +
   1.535 +GroupRule::~GroupRule()
   1.536 +{
   1.537 +  NS_ABORT_IF_FALSE(!mSheet, "SetStyleSheet should have been called");
   1.538 +  mRules.EnumerateForwards(SetParentRuleReference, nullptr);
   1.539 +  if (mRuleCollection) {
   1.540 +    mRuleCollection->DropReference();
   1.541 +  }
   1.542 +}
   1.543 +
   1.544 +NS_IMPL_CYCLE_COLLECTING_ADDREF(GroupRule)
   1.545 +NS_IMPL_CYCLE_COLLECTING_RELEASE(GroupRule)
   1.546 +
   1.547 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(GroupRule)
   1.548 +NS_INTERFACE_MAP_END
   1.549 +
   1.550 +IMPL_STYLE_RULE_INHERIT_MAP_RULE_INFO_INTO(GroupRule, Rule)
   1.551 +
   1.552 +static bool
   1.553 +SetStyleSheetReference(Rule* aRule, void* aSheet)
   1.554 +{
   1.555 +  nsCSSStyleSheet* sheet = (nsCSSStyleSheet*)aSheet;
   1.556 +  aRule->SetStyleSheet(sheet);
   1.557 +  return true;
   1.558 +}
   1.559 +
   1.560 +NS_IMPL_CYCLE_COLLECTION_CLASS(GroupRule)
   1.561 +
   1.562 +NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(GroupRule)
   1.563 +  tmp->mRules.EnumerateForwards(SetParentRuleReference, nullptr);
   1.564 +  // If tmp does not have a stylesheet, neither do its descendants.  In that
   1.565 +  // case, don't try to null out their stylesheet, to avoid O(N^2) behavior in
   1.566 +  // depth of group rule nesting.  But if tmp _does_ have a stylesheet (which
   1.567 +  // can happen if it gets unlinked earlier than its owning stylesheet), then we
   1.568 +  // need to null out the stylesheet pointer on descendants now, before we clear
   1.569 +  // tmp->mRules.
   1.570 +  if (tmp->GetStyleSheet()) {
   1.571 +    tmp->mRules.EnumerateForwards(SetStyleSheetReference, nullptr);
   1.572 +  }
   1.573 +  tmp->mRules.Clear();
   1.574 +  if (tmp->mRuleCollection) {
   1.575 +    tmp->mRuleCollection->DropReference();
   1.576 +    tmp->mRuleCollection = nullptr;
   1.577 +  }
   1.578 +NS_IMPL_CYCLE_COLLECTION_UNLINK_END
   1.579 +
   1.580 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(GroupRule)
   1.581 +  const nsCOMArray<Rule>& rules = tmp->mRules;
   1.582 +  for (int32_t i = 0, count = rules.Count(); i < count; ++i) {
   1.583 +    NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "mRules[i]");
   1.584 +    cb.NoteXPCOMChild(rules[i]->GetExistingDOMRule());
   1.585 +  }
   1.586 +  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mRuleCollection)
   1.587 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
   1.588 +
   1.589 +/* virtual */ void
   1.590 +GroupRule::SetStyleSheet(nsCSSStyleSheet* aSheet)
   1.591 +{
   1.592 +  // Don't set the sheet on the kids if it's already the same as the sheet we
   1.593 +  // already have.  This is needed to avoid O(N^2) behavior in group nesting
   1.594 +  // depth when seting the sheet to null during unlink, if we happen to unlin in
   1.595 +  // order from most nested rule up to least nested rule.
   1.596 +  if (aSheet != GetStyleSheet()) {
   1.597 +    mRules.EnumerateForwards(SetStyleSheetReference, aSheet);
   1.598 +    Rule::SetStyleSheet(aSheet);
   1.599 +  }
   1.600 +}
   1.601 +
   1.602 +#ifdef DEBUG
   1.603 +/* virtual */ void
   1.604 +GroupRule::List(FILE* out, int32_t aIndent) const
   1.605 +{
   1.606 +  fputs(" {\n", out);
   1.607 +
   1.608 +  for (int32_t index = 0, count = mRules.Count(); index < count; ++index) {
   1.609 +    mRules.ObjectAt(index)->List(out, aIndent + 1);
   1.610 +  }
   1.611 +
   1.612 +  for (int32_t indent = aIndent; --indent >= 0; ) fputs("  ", out);
   1.613 +  fputs("}\n", out);
   1.614 +}
   1.615 +#endif
   1.616 +
   1.617 +void
   1.618 +GroupRule::AppendStyleRule(Rule* aRule)
   1.619 +{
   1.620 +  mRules.AppendObject(aRule);
   1.621 +  nsCSSStyleSheet* sheet = GetStyleSheet();
   1.622 +  aRule->SetStyleSheet(sheet);
   1.623 +  aRule->SetParentRule(this);
   1.624 +  if (sheet) {
   1.625 +    sheet->SetModifiedByChildRule();
   1.626 +  }
   1.627 +}
   1.628 +
   1.629 +Rule*
   1.630 +GroupRule::GetStyleRuleAt(int32_t aIndex) const
   1.631 +{
   1.632 +  return mRules.SafeObjectAt(aIndex);
   1.633 +}
   1.634 +
   1.635 +bool
   1.636 +GroupRule::EnumerateRulesForwards(RuleEnumFunc aFunc, void * aData) const
   1.637 +{
   1.638 +  return
   1.639 +    const_cast<GroupRule*>(this)->mRules.EnumerateForwards(aFunc, aData);
   1.640 +}
   1.641 +
   1.642 +/*
   1.643 + * The next two methods (DeleteStyleRuleAt and InsertStyleRuleAt)
   1.644 + * should never be called unless you have first called WillDirty() on
   1.645 + * the parents stylesheet.  After they are called, DidDirty() needs to
   1.646 + * be called on the sheet
   1.647 + */
   1.648 +nsresult
   1.649 +GroupRule::DeleteStyleRuleAt(uint32_t aIndex)
   1.650 +{
   1.651 +  Rule* rule = mRules.SafeObjectAt(aIndex);
   1.652 +  if (rule) {
   1.653 +    rule->SetStyleSheet(nullptr);
   1.654 +    rule->SetParentRule(nullptr);
   1.655 +  }
   1.656 +  return mRules.RemoveObjectAt(aIndex) ? NS_OK : NS_ERROR_ILLEGAL_VALUE;
   1.657 +}
   1.658 +
   1.659 +nsresult
   1.660 +GroupRule::InsertStyleRuleAt(uint32_t aIndex, Rule* aRule)
   1.661 +{
   1.662 +  aRule->SetStyleSheet(GetStyleSheet());
   1.663 +  aRule->SetParentRule(this);
   1.664 +  if (! mRules.InsertObjectAt(aRule, aIndex)) {
   1.665 +    return NS_ERROR_FAILURE;
   1.666 +  }
   1.667 +  return NS_OK;
   1.668 +}
   1.669 +
   1.670 +nsresult
   1.671 +GroupRule::ReplaceStyleRule(Rule* aOld, Rule* aNew)
   1.672 +{
   1.673 +  int32_t index = mRules.IndexOf(aOld);
   1.674 +  NS_ENSURE_TRUE(index != -1, NS_ERROR_UNEXPECTED);
   1.675 +  mRules.ReplaceObjectAt(aNew, index);
   1.676 +  aNew->SetStyleSheet(GetStyleSheet());
   1.677 +  aNew->SetParentRule(this);
   1.678 +  aOld->SetStyleSheet(nullptr);
   1.679 +  aOld->SetParentRule(nullptr);
   1.680 +  return NS_OK;
   1.681 +}
   1.682 +
   1.683 +void
   1.684 +GroupRule::AppendRulesToCssText(nsAString& aCssText)
   1.685 +{
   1.686 +  aCssText.AppendLiteral(" {\n");
   1.687 +
   1.688 +  // get all the rules
   1.689 +  for (int32_t index = 0, count = mRules.Count(); index < count; ++index) {
   1.690 +    Rule* rule = mRules.ObjectAt(index);
   1.691 +    nsIDOMCSSRule* domRule = rule->GetDOMRule();
   1.692 +    if (domRule) {
   1.693 +      nsAutoString cssText;
   1.694 +      domRule->GetCssText(cssText);
   1.695 +      aCssText.Append(NS_LITERAL_STRING("  ") +
   1.696 +                      cssText +
   1.697 +                      NS_LITERAL_STRING("\n"));
   1.698 +    }
   1.699 +  }
   1.700 +
   1.701 +  aCssText.AppendLiteral("}");
   1.702 +}
   1.703 +
   1.704 +// nsIDOMCSSMediaRule or nsIDOMCSSMozDocumentRule methods
   1.705 +nsresult
   1.706 +GroupRule::GetCssRules(nsIDOMCSSRuleList* *aRuleList)
   1.707 +{
   1.708 +  if (!mRuleCollection) {
   1.709 +    mRuleCollection = new css::GroupRuleRuleList(this);
   1.710 +  }
   1.711 +
   1.712 +  NS_ADDREF(*aRuleList = mRuleCollection);
   1.713 +  return NS_OK;
   1.714 +}
   1.715 +
   1.716 +nsresult
   1.717 +GroupRule::InsertRule(const nsAString & aRule, uint32_t aIndex, uint32_t* _retval)
   1.718 +{
   1.719 +  nsCSSStyleSheet* sheet = GetStyleSheet();
   1.720 +  NS_ENSURE_TRUE(sheet, NS_ERROR_FAILURE);
   1.721 +  
   1.722 +  if (aIndex > uint32_t(mRules.Count()))
   1.723 +    return NS_ERROR_DOM_INDEX_SIZE_ERR;
   1.724 +
   1.725 +  NS_ASSERTION(uint32_t(mRules.Count()) <= INT32_MAX,
   1.726 +               "Too many style rules!");
   1.727 +
   1.728 +  return sheet->InsertRuleIntoGroup(aRule, this, aIndex, _retval);
   1.729 +}
   1.730 +
   1.731 +nsresult
   1.732 +GroupRule::DeleteRule(uint32_t aIndex)
   1.733 +{
   1.734 +  nsCSSStyleSheet* sheet = GetStyleSheet();
   1.735 +  NS_ENSURE_TRUE(sheet, NS_ERROR_FAILURE);
   1.736 +
   1.737 +  if (aIndex >= uint32_t(mRules.Count()))
   1.738 +    return NS_ERROR_DOM_INDEX_SIZE_ERR;
   1.739 +
   1.740 +  NS_ASSERTION(uint32_t(mRules.Count()) <= INT32_MAX,
   1.741 +               "Too many style rules!");
   1.742 +
   1.743 +  return sheet->DeleteRuleFromGroup(this, aIndex);
   1.744 +}
   1.745 +
   1.746 +/* virtual */ size_t
   1.747 +GroupRule::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const
   1.748 +{
   1.749 +  return mRules.SizeOfExcludingThis(Rule::SizeOfCOMArrayElementIncludingThis,
   1.750 +                                    aMallocSizeOf);
   1.751 +
   1.752 +  // Measurement of the following members may be added later if DMD finds it is
   1.753 +  // worthwhile:
   1.754 +  // - mRuleCollection
   1.755 +}
   1.756 +
   1.757 +
   1.758 +// -------------------------------------------
   1.759 +// nsICSSMediaRule
   1.760 +//
   1.761 +MediaRule::MediaRule()
   1.762 +{
   1.763 +}
   1.764 +
   1.765 +MediaRule::MediaRule(const MediaRule& aCopy)
   1.766 +  : GroupRule(aCopy)
   1.767 +{
   1.768 +  if (aCopy.mMedia) {
   1.769 +    mMedia = aCopy.mMedia->Clone();
   1.770 +    // XXXldb This doesn't really make sense.
   1.771 +    mMedia->SetStyleSheet(aCopy.GetStyleSheet());
   1.772 +  }
   1.773 +}
   1.774 +
   1.775 +MediaRule::~MediaRule()
   1.776 +{
   1.777 +  if (mMedia) {
   1.778 +    mMedia->SetStyleSheet(nullptr);
   1.779 +  }
   1.780 +}
   1.781 +
   1.782 +NS_IMPL_ADDREF_INHERITED(MediaRule, GroupRule)
   1.783 +NS_IMPL_RELEASE_INHERITED(MediaRule, GroupRule)
   1.784 +
   1.785 +// QueryInterface implementation for MediaRule
   1.786 +NS_INTERFACE_MAP_BEGIN(MediaRule)
   1.787 +  NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
   1.788 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
   1.789 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSGroupingRule)
   1.790 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSConditionRule)
   1.791 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSMediaRule)
   1.792 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
   1.793 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSMediaRule)
   1.794 +NS_INTERFACE_MAP_END_INHERITING(GroupRule)
   1.795 +
   1.796 +/* virtual */ void
   1.797 +MediaRule::SetStyleSheet(nsCSSStyleSheet* aSheet)
   1.798 +{
   1.799 +  if (mMedia) {
   1.800 +    // Set to null so it knows it's leaving one sheet and joining another.
   1.801 +    mMedia->SetStyleSheet(nullptr);
   1.802 +    mMedia->SetStyleSheet(aSheet);
   1.803 +  }
   1.804 +
   1.805 +  GroupRule::SetStyleSheet(aSheet);
   1.806 +}
   1.807 +
   1.808 +#ifdef DEBUG
   1.809 +/* virtual */ void
   1.810 +MediaRule::List(FILE* out, int32_t aIndent) const
   1.811 +{
   1.812 +  for (int32_t indent = aIndent; --indent >= 0; ) fputs("  ", out);
   1.813 +
   1.814 +  nsAutoString  buffer;
   1.815 +
   1.816 +  fputs("@media ", out);
   1.817 +
   1.818 +  if (mMedia) {
   1.819 +    nsAutoString mediaText;
   1.820 +    mMedia->GetText(mediaText);
   1.821 +    fputs(NS_LossyConvertUTF16toASCII(mediaText).get(), out);
   1.822 +  }
   1.823 +
   1.824 +  GroupRule::List(out, aIndent);
   1.825 +}
   1.826 +#endif
   1.827 +
   1.828 +/* virtual */ int32_t
   1.829 +MediaRule::GetType() const
   1.830 +{
   1.831 +  return Rule::MEDIA_RULE;
   1.832 +}
   1.833 +
   1.834 +/* virtual */ already_AddRefed<Rule>
   1.835 +MediaRule::Clone() const
   1.836 +{
   1.837 +  nsRefPtr<Rule> clone = new MediaRule(*this);
   1.838 +  return clone.forget();
   1.839 +}
   1.840 +
   1.841 +nsresult
   1.842 +MediaRule::SetMedia(nsMediaList* aMedia)
   1.843 +{
   1.844 +  mMedia = aMedia;
   1.845 +  if (aMedia)
   1.846 +    mMedia->SetStyleSheet(GetStyleSheet());
   1.847 +  return NS_OK;
   1.848 +}
   1.849 +
   1.850 +// nsIDOMCSSRule methods
   1.851 +NS_IMETHODIMP
   1.852 +MediaRule::GetType(uint16_t* aType)
   1.853 +{
   1.854 +  *aType = nsIDOMCSSRule::MEDIA_RULE;
   1.855 +  return NS_OK;
   1.856 +}
   1.857 +
   1.858 +NS_IMETHODIMP
   1.859 +MediaRule::GetCssText(nsAString& aCssText)
   1.860 +{
   1.861 +  aCssText.AssignLiteral("@media ");
   1.862 +  AppendConditionText(aCssText);
   1.863 +  GroupRule::AppendRulesToCssText(aCssText);
   1.864 +  return NS_OK;
   1.865 +}
   1.866 +
   1.867 +NS_IMETHODIMP
   1.868 +MediaRule::SetCssText(const nsAString& aCssText)
   1.869 +{
   1.870 +  return NS_ERROR_NOT_IMPLEMENTED;
   1.871 +}
   1.872 +
   1.873 +NS_IMETHODIMP
   1.874 +MediaRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
   1.875 +{
   1.876 +  return GroupRule::GetParentStyleSheet(aSheet);
   1.877 +}
   1.878 +
   1.879 +NS_IMETHODIMP
   1.880 +MediaRule::GetParentRule(nsIDOMCSSRule** aParentRule)
   1.881 +{
   1.882 +  return GroupRule::GetParentRule(aParentRule);
   1.883 +}
   1.884 +
   1.885 +// nsIDOMCSSGroupingRule methods
   1.886 +NS_IMETHODIMP
   1.887 +MediaRule::GetCssRules(nsIDOMCSSRuleList* *aRuleList)
   1.888 +{
   1.889 +  return GroupRule::GetCssRules(aRuleList);
   1.890 +}
   1.891 +
   1.892 +NS_IMETHODIMP
   1.893 +MediaRule::InsertRule(const nsAString & aRule, uint32_t aIndex, uint32_t* _retval)
   1.894 +{
   1.895 +  return GroupRule::InsertRule(aRule, aIndex, _retval);
   1.896 +}
   1.897 +
   1.898 +NS_IMETHODIMP
   1.899 +MediaRule::DeleteRule(uint32_t aIndex)
   1.900 +{
   1.901 +  return GroupRule::DeleteRule(aIndex);
   1.902 +}
   1.903 +
   1.904 +// nsIDOMCSSConditionRule methods
   1.905 +NS_IMETHODIMP
   1.906 +MediaRule::GetConditionText(nsAString& aConditionText)
   1.907 +{
   1.908 +  aConditionText.Truncate(0);
   1.909 +  AppendConditionText(aConditionText);
   1.910 +  return NS_OK;
   1.911 +}
   1.912 +
   1.913 +NS_IMETHODIMP
   1.914 +MediaRule::SetConditionText(const nsAString& aConditionText)
   1.915 +{
   1.916 +  if (!mMedia) {
   1.917 +    nsRefPtr<nsMediaList> media = new nsMediaList();
   1.918 +    media->SetStyleSheet(GetStyleSheet());
   1.919 +    nsresult rv = media->SetMediaText(aConditionText);
   1.920 +    if (NS_SUCCEEDED(rv)) {
   1.921 +      mMedia = media;
   1.922 +    }
   1.923 +    return rv;
   1.924 +  }
   1.925 +
   1.926 +  return mMedia->SetMediaText(aConditionText);
   1.927 +}
   1.928 +
   1.929 +// nsIDOMCSSMediaRule methods
   1.930 +NS_IMETHODIMP
   1.931 +MediaRule::GetMedia(nsIDOMMediaList* *aMedia)
   1.932 +{
   1.933 +  NS_ENSURE_ARG_POINTER(aMedia);
   1.934 +  NS_IF_ADDREF(*aMedia = mMedia);
   1.935 +  return NS_OK;
   1.936 +}
   1.937 +
   1.938 +// GroupRule interface
   1.939 +/* virtual */ bool
   1.940 +MediaRule::UseForPresentation(nsPresContext* aPresContext,
   1.941 +                                   nsMediaQueryResultCacheKey& aKey)
   1.942 +{
   1.943 +  if (mMedia) {
   1.944 +    return mMedia->Matches(aPresContext, &aKey);
   1.945 +  }
   1.946 +  return true;
   1.947 +}
   1.948 +
   1.949 +/* virtual */ size_t
   1.950 +MediaRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
   1.951 +{
   1.952 +  size_t n = aMallocSizeOf(this);
   1.953 +  n += GroupRule::SizeOfExcludingThis(aMallocSizeOf);
   1.954 +
   1.955 +  // Measurement of the following members may be added later if DMD finds it is
   1.956 +  // worthwhile:
   1.957 +  // - mMedia
   1.958 +
   1.959 +  return n;
   1.960 +}
   1.961 +
   1.962 +void
   1.963 +MediaRule::AppendConditionText(nsAString& aOutput)
   1.964 +{
   1.965 +  if (mMedia) {
   1.966 +    nsAutoString mediaText;
   1.967 +    mMedia->GetText(mediaText);
   1.968 +    aOutput.Append(mediaText);
   1.969 +  }
   1.970 +}
   1.971 +
   1.972 +} // namespace css
   1.973 +} // namespace mozilla
   1.974 +
   1.975 +// Must be outside namespace
   1.976 +DOMCI_DATA(CSSMediaRule, css::MediaRule)
   1.977 +
   1.978 +namespace mozilla {
   1.979 +namespace css {
   1.980 +
   1.981 +DocumentRule::DocumentRule()
   1.982 +{
   1.983 +}
   1.984 +
   1.985 +DocumentRule::DocumentRule(const DocumentRule& aCopy)
   1.986 +  : GroupRule(aCopy)
   1.987 +  , mURLs(new URL(*aCopy.mURLs))
   1.988 +{
   1.989 +}
   1.990 +
   1.991 +DocumentRule::~DocumentRule()
   1.992 +{
   1.993 +}
   1.994 +
   1.995 +NS_IMPL_ADDREF_INHERITED(DocumentRule, GroupRule)
   1.996 +NS_IMPL_RELEASE_INHERITED(DocumentRule, GroupRule)
   1.997 +
   1.998 +// QueryInterface implementation for DocumentRule
   1.999 +NS_INTERFACE_MAP_BEGIN(DocumentRule)
  1.1000 +  NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
  1.1001 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
  1.1002 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSGroupingRule)
  1.1003 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSConditionRule)
  1.1004 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSMozDocumentRule)
  1.1005 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
  1.1006 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSMozDocumentRule)
  1.1007 +NS_INTERFACE_MAP_END_INHERITING(GroupRule)
  1.1008 +
  1.1009 +#ifdef DEBUG
  1.1010 +/* virtual */ void
  1.1011 +DocumentRule::List(FILE* out, int32_t aIndent) const
  1.1012 +{
  1.1013 +  for (int32_t indent = aIndent; --indent >= 0; ) fputs("  ", out);
  1.1014 +
  1.1015 +  nsAutoCString str;
  1.1016 +  str.AssignLiteral("@-moz-document ");
  1.1017 +  for (URL *url = mURLs; url; url = url->next) {
  1.1018 +    switch (url->func) {
  1.1019 +      case eURL:
  1.1020 +        str.AppendLiteral("url(\"");
  1.1021 +        break;
  1.1022 +      case eURLPrefix:
  1.1023 +        str.AppendLiteral("url-prefix(\"");
  1.1024 +        break;
  1.1025 +      case eDomain:
  1.1026 +        str.AppendLiteral("domain(\"");
  1.1027 +        break;
  1.1028 +      case eRegExp:
  1.1029 +        str.AppendLiteral("regexp(\"");
  1.1030 +        break;
  1.1031 +    }
  1.1032 +    nsAutoCString escapedURL(url->url);
  1.1033 +    escapedURL.ReplaceSubstring("\"", "\\\""); // escape quotes
  1.1034 +    str.Append(escapedURL);
  1.1035 +    str.AppendLiteral("\"), ");
  1.1036 +  }
  1.1037 +  str.Cut(str.Length() - 2, 1); // remove last ,
  1.1038 +  fputs(str.get(), out);
  1.1039 +
  1.1040 +  GroupRule::List(out, aIndent);
  1.1041 +}
  1.1042 +#endif
  1.1043 +
  1.1044 +/* virtual */ int32_t
  1.1045 +DocumentRule::GetType() const
  1.1046 +{
  1.1047 +  return Rule::DOCUMENT_RULE;
  1.1048 +}
  1.1049 +
  1.1050 +/* virtual */ already_AddRefed<Rule>
  1.1051 +DocumentRule::Clone() const
  1.1052 +{
  1.1053 +  nsRefPtr<Rule> clone = new DocumentRule(*this);
  1.1054 +  return clone.forget();
  1.1055 +}
  1.1056 +
  1.1057 +// nsIDOMCSSRule methods
  1.1058 +NS_IMETHODIMP
  1.1059 +DocumentRule::GetType(uint16_t* aType)
  1.1060 +{
  1.1061 +  // XXX What should really happen here?
  1.1062 +  *aType = nsIDOMCSSRule::UNKNOWN_RULE;
  1.1063 +  return NS_OK;
  1.1064 +}
  1.1065 +
  1.1066 +NS_IMETHODIMP
  1.1067 +DocumentRule::GetCssText(nsAString& aCssText)
  1.1068 +{
  1.1069 +  aCssText.AssignLiteral("@-moz-document ");
  1.1070 +  AppendConditionText(aCssText);
  1.1071 +  GroupRule::AppendRulesToCssText(aCssText);
  1.1072 +  return NS_OK;
  1.1073 +}
  1.1074 +
  1.1075 +NS_IMETHODIMP
  1.1076 +DocumentRule::SetCssText(const nsAString& aCssText)
  1.1077 +{
  1.1078 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.1079 +}
  1.1080 +
  1.1081 +NS_IMETHODIMP
  1.1082 +DocumentRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
  1.1083 +{
  1.1084 +  return GroupRule::GetParentStyleSheet(aSheet);
  1.1085 +}
  1.1086 +
  1.1087 +NS_IMETHODIMP
  1.1088 +DocumentRule::GetParentRule(nsIDOMCSSRule** aParentRule)
  1.1089 +{
  1.1090 +  return GroupRule::GetParentRule(aParentRule);
  1.1091 +}
  1.1092 +
  1.1093 +// nsIDOMCSSGroupingRule methods
  1.1094 +NS_IMETHODIMP
  1.1095 +DocumentRule::GetCssRules(nsIDOMCSSRuleList* *aRuleList)
  1.1096 +{
  1.1097 +  return GroupRule::GetCssRules(aRuleList);
  1.1098 +}
  1.1099 +
  1.1100 +NS_IMETHODIMP
  1.1101 +DocumentRule::InsertRule(const nsAString & aRule, uint32_t aIndex, uint32_t* _retval)
  1.1102 +{
  1.1103 +  return GroupRule::InsertRule(aRule, aIndex, _retval);
  1.1104 +}
  1.1105 +
  1.1106 +NS_IMETHODIMP
  1.1107 +DocumentRule::DeleteRule(uint32_t aIndex)
  1.1108 +{
  1.1109 +  return GroupRule::DeleteRule(aIndex);
  1.1110 +}
  1.1111 +
  1.1112 +// nsIDOMCSSConditionRule methods
  1.1113 +NS_IMETHODIMP
  1.1114 +DocumentRule::GetConditionText(nsAString& aConditionText)
  1.1115 +{
  1.1116 +  aConditionText.Truncate(0);
  1.1117 +  AppendConditionText(aConditionText);
  1.1118 +  return NS_OK;
  1.1119 +}
  1.1120 +
  1.1121 +NS_IMETHODIMP
  1.1122 +DocumentRule::SetConditionText(const nsAString& aConditionText)
  1.1123 +{
  1.1124 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.1125 +}
  1.1126 +
  1.1127 +// GroupRule interface
  1.1128 +/* virtual */ bool
  1.1129 +DocumentRule::UseForPresentation(nsPresContext* aPresContext,
  1.1130 +                                 nsMediaQueryResultCacheKey& aKey)
  1.1131 +{
  1.1132 +  nsIDocument *doc = aPresContext->Document();
  1.1133 +  nsIURI *docURI = doc->GetDocumentURI();
  1.1134 +  nsAutoCString docURISpec;
  1.1135 +  if (docURI)
  1.1136 +    docURI->GetSpec(docURISpec);
  1.1137 +
  1.1138 +  for (URL *url = mURLs; url; url = url->next) {
  1.1139 +    switch (url->func) {
  1.1140 +      case eURL: {
  1.1141 +        if (docURISpec == url->url)
  1.1142 +          return true;
  1.1143 +      } break;
  1.1144 +      case eURLPrefix: {
  1.1145 +        if (StringBeginsWith(docURISpec, url->url))
  1.1146 +          return true;
  1.1147 +      } break;
  1.1148 +      case eDomain: {
  1.1149 +        nsAutoCString host;
  1.1150 +        if (docURI)
  1.1151 +          docURI->GetHost(host);
  1.1152 +        int32_t lenDiff = host.Length() - url->url.Length();
  1.1153 +        if (lenDiff == 0) {
  1.1154 +          if (host == url->url)
  1.1155 +            return true;
  1.1156 +        } else {
  1.1157 +          if (StringEndsWith(host, url->url) &&
  1.1158 +              host.CharAt(lenDiff - 1) == '.')
  1.1159 +            return true;
  1.1160 +        }
  1.1161 +      } break;
  1.1162 +      case eRegExp: {
  1.1163 +        NS_ConvertUTF8toUTF16 spec(docURISpec);
  1.1164 +        NS_ConvertUTF8toUTF16 regex(url->url);
  1.1165 +        if (nsContentUtils::IsPatternMatching(spec, regex, doc)) {
  1.1166 +          return true;
  1.1167 +        }
  1.1168 +      } break;
  1.1169 +    }
  1.1170 +  }
  1.1171 +
  1.1172 +  return false;
  1.1173 +}
  1.1174 +
  1.1175 +DocumentRule::URL::~URL()
  1.1176 +{
  1.1177 +  NS_CSS_DELETE_LIST_MEMBER(DocumentRule::URL, this, next);
  1.1178 +}
  1.1179 +
  1.1180 +/* virtual */ size_t
  1.1181 +DocumentRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
  1.1182 +{
  1.1183 +  size_t n = aMallocSizeOf(this);
  1.1184 +  n += GroupRule::SizeOfExcludingThis(aMallocSizeOf);
  1.1185 +
  1.1186 +  // Measurement of the following members may be added later if DMD finds it is
  1.1187 +  // worthwhile:
  1.1188 +  // - mURLs
  1.1189 +
  1.1190 +  return n;
  1.1191 +}
  1.1192 +
  1.1193 +void
  1.1194 +DocumentRule::AppendConditionText(nsAString& aCssText)
  1.1195 +{
  1.1196 +  for (URL *url = mURLs; url; url = url->next) {
  1.1197 +    switch (url->func) {
  1.1198 +      case eURL:
  1.1199 +        aCssText.AppendLiteral("url(");
  1.1200 +        break;
  1.1201 +      case eURLPrefix:
  1.1202 +        aCssText.AppendLiteral("url-prefix(");
  1.1203 +        break;
  1.1204 +      case eDomain:
  1.1205 +        aCssText.AppendLiteral("domain(");
  1.1206 +        break;
  1.1207 +      case eRegExp:
  1.1208 +        aCssText.AppendLiteral("regexp(");
  1.1209 +        break;
  1.1210 +    }
  1.1211 +    nsStyleUtil::AppendEscapedCSSString(NS_ConvertUTF8toUTF16(url->url),
  1.1212 +                                        aCssText);
  1.1213 +    aCssText.AppendLiteral("), ");
  1.1214 +  }
  1.1215 +  aCssText.Truncate(aCssText.Length() - 2); // remove last ", "
  1.1216 +}
  1.1217 +
  1.1218 +} // namespace css
  1.1219 +} // namespace mozilla
  1.1220 +
  1.1221 +// Must be outside namespace
  1.1222 +DOMCI_DATA(CSSMozDocumentRule, css::DocumentRule)
  1.1223 +
  1.1224 +// -------------------------------------------
  1.1225 +// NameSpaceRule
  1.1226 +//
  1.1227 +
  1.1228 +namespace mozilla {
  1.1229 +namespace css {
  1.1230 +
  1.1231 +NameSpaceRule::NameSpaceRule(nsIAtom* aPrefix, const nsString& aURLSpec)
  1.1232 +  : Rule(),
  1.1233 +    mPrefix(aPrefix),
  1.1234 +    mURLSpec(aURLSpec)
  1.1235 +{
  1.1236 +}
  1.1237 +
  1.1238 +NameSpaceRule::NameSpaceRule(const NameSpaceRule& aCopy)
  1.1239 +  : Rule(aCopy),
  1.1240 +    mPrefix(aCopy.mPrefix),
  1.1241 +    mURLSpec(aCopy.mURLSpec)
  1.1242 +{
  1.1243 +}
  1.1244 +
  1.1245 +NameSpaceRule::~NameSpaceRule()
  1.1246 +{
  1.1247 +}
  1.1248 +
  1.1249 +NS_IMPL_ADDREF(NameSpaceRule)
  1.1250 +NS_IMPL_RELEASE(NameSpaceRule)
  1.1251 +
  1.1252 +// QueryInterface implementation for NameSpaceRule
  1.1253 +NS_INTERFACE_MAP_BEGIN(NameSpaceRule)
  1.1254 +  if (aIID.Equals(NS_GET_IID(css::NameSpaceRule))) {
  1.1255 +    *aInstancePtr = this;
  1.1256 +    NS_ADDREF_THIS();
  1.1257 +    return NS_OK;
  1.1258 +  }
  1.1259 +  else
  1.1260 +  NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
  1.1261 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
  1.1262 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
  1.1263 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSNameSpaceRule)
  1.1264 +NS_INTERFACE_MAP_END
  1.1265 +
  1.1266 +IMPL_STYLE_RULE_INHERIT(NameSpaceRule, Rule)
  1.1267 +
  1.1268 +#ifdef DEBUG
  1.1269 +/* virtual */ void
  1.1270 +NameSpaceRule::List(FILE* out, int32_t aIndent) const
  1.1271 +{
  1.1272 +  for (int32_t indent = aIndent; --indent >= 0; ) fputs("  ", out);
  1.1273 +
  1.1274 +  nsAutoString  buffer;
  1.1275 +
  1.1276 +  fputs("@namespace ", out);
  1.1277 +
  1.1278 +  if (mPrefix) {
  1.1279 +    mPrefix->ToString(buffer);
  1.1280 +    fputs(NS_LossyConvertUTF16toASCII(buffer).get(), out);
  1.1281 +    fputs(" ", out);
  1.1282 +  }
  1.1283 +
  1.1284 +  fputs("url(", out);
  1.1285 +  fputs(NS_LossyConvertUTF16toASCII(mURLSpec).get(), out);
  1.1286 +  fputs(")\n", out);
  1.1287 +}
  1.1288 +#endif
  1.1289 +
  1.1290 +/* virtual */ int32_t
  1.1291 +NameSpaceRule::GetType() const
  1.1292 +{
  1.1293 +  return Rule::NAMESPACE_RULE;
  1.1294 +}
  1.1295 +
  1.1296 +/* virtual */ already_AddRefed<Rule>
  1.1297 +NameSpaceRule::Clone() const
  1.1298 +{
  1.1299 +  nsRefPtr<Rule> clone = new NameSpaceRule(*this);
  1.1300 +  return clone.forget();
  1.1301 +}
  1.1302 +
  1.1303 +NS_IMETHODIMP
  1.1304 +NameSpaceRule::GetType(uint16_t* aType)
  1.1305 +{
  1.1306 +  *aType = nsIDOMCSSRule::NAMESPACE_RULE;
  1.1307 +  return NS_OK;
  1.1308 +}
  1.1309 +
  1.1310 +NS_IMETHODIMP
  1.1311 +NameSpaceRule::GetCssText(nsAString& aCssText)
  1.1312 +{
  1.1313 +  aCssText.AssignLiteral("@namespace ");
  1.1314 +  if (mPrefix) {
  1.1315 +    aCssText.Append(nsDependentAtomString(mPrefix) + NS_LITERAL_STRING(" "));
  1.1316 +  }
  1.1317 +  aCssText.AppendLiteral("url(");
  1.1318 +  nsStyleUtil::AppendEscapedCSSString(mURLSpec, aCssText);
  1.1319 +  aCssText.Append(NS_LITERAL_STRING(");"));
  1.1320 +  return NS_OK;
  1.1321 +}
  1.1322 +
  1.1323 +NS_IMETHODIMP
  1.1324 +NameSpaceRule::SetCssText(const nsAString& aCssText)
  1.1325 +{
  1.1326 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.1327 +}
  1.1328 +
  1.1329 +NS_IMETHODIMP
  1.1330 +NameSpaceRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
  1.1331 +{
  1.1332 +  return Rule::GetParentStyleSheet(aSheet);
  1.1333 +}
  1.1334 +
  1.1335 +NS_IMETHODIMP
  1.1336 +NameSpaceRule::GetParentRule(nsIDOMCSSRule** aParentRule)
  1.1337 +{
  1.1338 +  return Rule::GetParentRule(aParentRule);
  1.1339 +}
  1.1340 +
  1.1341 +/* virtual */ size_t
  1.1342 +NameSpaceRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
  1.1343 +{
  1.1344 +  return aMallocSizeOf(this);
  1.1345 +
  1.1346 +  // Measurement of the following members may be added later if DMD finds it is
  1.1347 +  // worthwhile:
  1.1348 +  // - mPrefix
  1.1349 +  // - mURLSpec
  1.1350 +}
  1.1351 +
  1.1352 +
  1.1353 +} // namespace css
  1.1354 +} // namespace mozilla
  1.1355 +
  1.1356 +// Must be outside namespace
  1.1357 +DOMCI_DATA(CSSNameSpaceRule, css::NameSpaceRule)
  1.1358 +
  1.1359 +// -------------------------------------------
  1.1360 +// nsCSSFontFaceStyleDecl and related routines
  1.1361 +//
  1.1362 +
  1.1363 +// A src: descriptor is represented as an array value; each entry in
  1.1364 +// the array can be eCSSUnit_URL, eCSSUnit_Local_Font, or
  1.1365 +// eCSSUnit_Font_Format.  Blocks of eCSSUnit_Font_Format may appear
  1.1366 +// only after one of the first two.  (css3-fonts only contemplates
  1.1367 +// annotating URLs with formats, but we handle the general case.)
  1.1368 +static void
  1.1369 +AppendSerializedFontSrc(const nsCSSValue& src, nsAString & aResult)
  1.1370 +{
  1.1371 +  NS_PRECONDITION(src.GetUnit() == eCSSUnit_Array,
  1.1372 +                  "improper value unit for src:");
  1.1373 +
  1.1374 +  const nsCSSValue::Array& sources = *src.GetArrayValue();
  1.1375 +  size_t i = 0;
  1.1376 +
  1.1377 +  while (i < sources.Count()) {
  1.1378 +    nsAutoString formats;
  1.1379 +
  1.1380 +    if (sources[i].GetUnit() == eCSSUnit_URL) {
  1.1381 +      aResult.AppendLiteral("url(");
  1.1382 +      nsDependentString url(sources[i].GetOriginalURLValue());
  1.1383 +      nsStyleUtil::AppendEscapedCSSString(url, aResult);
  1.1384 +      aResult.AppendLiteral(")");
  1.1385 +    } else if (sources[i].GetUnit() == eCSSUnit_Local_Font) {
  1.1386 +      aResult.AppendLiteral("local(");
  1.1387 +      nsDependentString local(sources[i].GetStringBufferValue());
  1.1388 +      nsStyleUtil::AppendEscapedCSSString(local, aResult);
  1.1389 +      aResult.AppendLiteral(")");
  1.1390 +    } else {
  1.1391 +      NS_NOTREACHED("entry in src: descriptor with improper unit");
  1.1392 +      i++;
  1.1393 +      continue;
  1.1394 +    }
  1.1395 +
  1.1396 +    i++;
  1.1397 +    formats.Truncate();
  1.1398 +    while (i < sources.Count() &&
  1.1399 +           sources[i].GetUnit() == eCSSUnit_Font_Format) {
  1.1400 +      formats.Append('"');
  1.1401 +      formats.Append(sources[i].GetStringBufferValue());
  1.1402 +      formats.AppendLiteral("\", ");
  1.1403 +      i++;
  1.1404 +    }
  1.1405 +    if (formats.Length() > 0) {
  1.1406 +      formats.Truncate(formats.Length() - 2); // remove the last comma
  1.1407 +      aResult.AppendLiteral(" format(");
  1.1408 +      aResult.Append(formats);
  1.1409 +      aResult.Append(')');
  1.1410 +    }
  1.1411 +    aResult.AppendLiteral(", ");
  1.1412 +  }
  1.1413 +  aResult.Truncate(aResult.Length() - 2); // remove the last comma-space
  1.1414 +}
  1.1415 +
  1.1416 +// print all characters with at least four hex digits
  1.1417 +static void
  1.1418 +AppendSerializedUnicodePoint(uint32_t aCode, nsACString &aBuf)
  1.1419 +{
  1.1420 +  aBuf.Append(nsPrintfCString("%04X", aCode));
  1.1421 +}
  1.1422 +
  1.1423 +// A unicode-range: descriptor is represented as an array of integers,
  1.1424 +// to be interpreted as a sequence of pairs: min max min max ...
  1.1425 +// It is in source order.  (Possibly it should be sorted and overlaps
  1.1426 +// consolidated, but right now we don't do that.)
  1.1427 +static void
  1.1428 +AppendSerializedUnicodeRange(nsCSSValue const & aValue,
  1.1429 +                             nsAString & aResult)
  1.1430 +{
  1.1431 +  NS_PRECONDITION(aValue.GetUnit() == eCSSUnit_Null ||
  1.1432 +                  aValue.GetUnit() == eCSSUnit_Array,
  1.1433 +                  "improper value unit for unicode-range:");
  1.1434 +  aResult.Truncate();
  1.1435 +  if (aValue.GetUnit() != eCSSUnit_Array)
  1.1436 +    return;
  1.1437 +
  1.1438 +  nsCSSValue::Array const & sources = *aValue.GetArrayValue();
  1.1439 +  nsAutoCString buf;
  1.1440 +
  1.1441 +  NS_ABORT_IF_FALSE(sources.Count() % 2 == 0,
  1.1442 +                    "odd number of entries in a unicode-range: array");
  1.1443 +
  1.1444 +  for (uint32_t i = 0; i < sources.Count(); i += 2) {
  1.1445 +    uint32_t min = sources[i].GetIntValue();
  1.1446 +    uint32_t max = sources[i+1].GetIntValue();
  1.1447 +
  1.1448 +    // We don't try to replicate the U+XX?? notation.
  1.1449 +    buf.AppendLiteral("U+");
  1.1450 +    AppendSerializedUnicodePoint(min, buf);
  1.1451 +
  1.1452 +    if (min != max) {
  1.1453 +      buf.Append('-');
  1.1454 +      AppendSerializedUnicodePoint(max, buf);
  1.1455 +    }
  1.1456 +    buf.AppendLiteral(", ");
  1.1457 +  }
  1.1458 +  buf.Truncate(buf.Length() - 2); // remove the last comma-space
  1.1459 +  CopyASCIItoUTF16(buf, aResult);
  1.1460 +}
  1.1461 +
  1.1462 +// Mapping from nsCSSFontDesc codes to nsCSSFontFaceStyleDecl fields.
  1.1463 +nsCSSValue nsCSSFontFaceStyleDecl::* const
  1.1464 +nsCSSFontFaceStyleDecl::Fields[] = {
  1.1465 +#define CSS_FONT_DESC(name_, method_) &nsCSSFontFaceStyleDecl::m##method_,
  1.1466 +#include "nsCSSFontDescList.h"
  1.1467 +#undef CSS_FONT_DESC
  1.1468 +};
  1.1469 +
  1.1470 +// QueryInterface implementation for nsCSSFontFaceStyleDecl
  1.1471 +NS_INTERFACE_MAP_BEGIN(nsCSSFontFaceStyleDecl)
  1.1472 +  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
  1.1473 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSStyleDeclaration)
  1.1474 +  NS_INTERFACE_MAP_ENTRY(nsICSSDeclaration)
  1.1475 +  NS_INTERFACE_MAP_ENTRY(nsISupports)
  1.1476 +  // We forward the cycle collection interfaces to ContainingRule(), which is
  1.1477 +  // never null (in fact, we're part of that object!)
  1.1478 +  if (aIID.Equals(NS_GET_IID(nsCycleCollectionISupports)) ||
  1.1479 +      aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant))) {
  1.1480 +    return ContainingRule()->QueryInterface(aIID, aInstancePtr);
  1.1481 +  }
  1.1482 +  else
  1.1483 +NS_INTERFACE_MAP_END
  1.1484 +
  1.1485 +NS_IMPL_ADDREF_USING_AGGREGATOR(nsCSSFontFaceStyleDecl, ContainingRule())
  1.1486 +NS_IMPL_RELEASE_USING_AGGREGATOR(nsCSSFontFaceStyleDecl, ContainingRule())
  1.1487 +
  1.1488 +// helper for string GetPropertyValue and RemovePropertyValue
  1.1489 +nsresult
  1.1490 +nsCSSFontFaceStyleDecl::GetPropertyValue(nsCSSFontDesc aFontDescID,
  1.1491 +                                         nsAString & aResult) const
  1.1492 +{
  1.1493 +  NS_ENSURE_ARG_RANGE(aFontDescID, eCSSFontDesc_UNKNOWN,
  1.1494 +                      eCSSFontDesc_COUNT - 1);
  1.1495 +
  1.1496 +  aResult.Truncate();
  1.1497 +  if (aFontDescID == eCSSFontDesc_UNKNOWN)
  1.1498 +    return NS_OK;
  1.1499 +
  1.1500 +  const nsCSSValue& val = this->*nsCSSFontFaceStyleDecl::Fields[aFontDescID];
  1.1501 +
  1.1502 +  if (val.GetUnit() == eCSSUnit_Null) {
  1.1503 +    // Avoid having to check no-value in the Family and Src cases below.
  1.1504 +    return NS_OK;
  1.1505 +  }
  1.1506 +
  1.1507 +  switch (aFontDescID) {
  1.1508 +  case eCSSFontDesc_Family: {
  1.1509 +      // we don't use nsCSSValue::AppendToString here because it doesn't
  1.1510 +      // canonicalize the way we want, and anyway it's overkill when
  1.1511 +      // we know we have eCSSUnit_String
  1.1512 +      NS_ASSERTION(val.GetUnit() == eCSSUnit_String, "unexpected unit");
  1.1513 +      nsDependentString family(val.GetStringBufferValue());
  1.1514 +      nsStyleUtil::AppendEscapedCSSString(family, aResult);
  1.1515 +      return NS_OK;
  1.1516 +    }
  1.1517 +
  1.1518 +  case eCSSFontDesc_Style:
  1.1519 +    val.AppendToString(eCSSProperty_font_style, aResult,
  1.1520 +                        nsCSSValue::eNormalized);
  1.1521 +    return NS_OK;
  1.1522 +
  1.1523 +  case eCSSFontDesc_Weight:
  1.1524 +    val.AppendToString(eCSSProperty_font_weight, aResult,
  1.1525 +                       nsCSSValue::eNormalized);
  1.1526 +    return NS_OK;
  1.1527 +
  1.1528 +  case eCSSFontDesc_Stretch:
  1.1529 +    val.AppendToString(eCSSProperty_font_stretch, aResult,
  1.1530 +                       nsCSSValue::eNormalized);
  1.1531 +    return NS_OK;
  1.1532 +
  1.1533 +  case eCSSFontDesc_FontFeatureSettings:
  1.1534 +    nsStyleUtil::AppendFontFeatureSettings(val, aResult);
  1.1535 +    return NS_OK;
  1.1536 +
  1.1537 +  case eCSSFontDesc_FontLanguageOverride:
  1.1538 +    val.AppendToString(eCSSProperty_font_language_override, aResult,
  1.1539 +                       nsCSSValue::eNormalized);
  1.1540 +    return NS_OK;
  1.1541 +
  1.1542 +  case eCSSFontDesc_Src:
  1.1543 +    AppendSerializedFontSrc(val, aResult);
  1.1544 +    return NS_OK;
  1.1545 +
  1.1546 +  case eCSSFontDesc_UnicodeRange:
  1.1547 +    AppendSerializedUnicodeRange(val, aResult);
  1.1548 +    return NS_OK;
  1.1549 +
  1.1550 +  case eCSSFontDesc_UNKNOWN:
  1.1551 +  case eCSSFontDesc_COUNT:
  1.1552 +    ;
  1.1553 +  }
  1.1554 +  NS_NOTREACHED("nsCSSFontFaceStyleDecl::GetPropertyValue: "
  1.1555 +                "out-of-range value got to the switch");
  1.1556 +  return NS_ERROR_INVALID_ARG;
  1.1557 +}
  1.1558 +
  1.1559 +
  1.1560 +// attribute DOMString cssText;
  1.1561 +NS_IMETHODIMP
  1.1562 +nsCSSFontFaceStyleDecl::GetCssText(nsAString & aCssText)
  1.1563 +{
  1.1564 +  nsAutoString descStr;
  1.1565 +
  1.1566 +  aCssText.Truncate();
  1.1567 +  for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
  1.1568 +       id < eCSSFontDesc_COUNT;
  1.1569 +       id = nsCSSFontDesc(id + 1)) {
  1.1570 +    if ((this->*nsCSSFontFaceStyleDecl::Fields[id]).GetUnit()
  1.1571 +          != eCSSUnit_Null &&
  1.1572 +        NS_SUCCEEDED(GetPropertyValue(id, descStr))) {
  1.1573 +      NS_ASSERTION(descStr.Length() > 0,
  1.1574 +                   "GetCssText: non-null unit, empty property value");
  1.1575 +      aCssText.AppendLiteral("  ");
  1.1576 +      aCssText.AppendASCII(nsCSSProps::GetStringValue(id).get());
  1.1577 +      aCssText.AppendLiteral(": ");
  1.1578 +      aCssText.Append(descStr);
  1.1579 +      aCssText.AppendLiteral(";\n");
  1.1580 +    }
  1.1581 +  }
  1.1582 +  return NS_OK;
  1.1583 +}
  1.1584 +
  1.1585 +NS_IMETHODIMP
  1.1586 +nsCSSFontFaceStyleDecl::SetCssText(const nsAString & aCssText)
  1.1587 +{
  1.1588 +  return NS_ERROR_NOT_IMPLEMENTED; // bug 443978
  1.1589 +}
  1.1590 +
  1.1591 +// DOMString getPropertyValue (in DOMString propertyName);
  1.1592 +NS_IMETHODIMP
  1.1593 +nsCSSFontFaceStyleDecl::GetPropertyValue(const nsAString & propertyName,
  1.1594 +                                         nsAString & aResult)
  1.1595 +{
  1.1596 +  return GetPropertyValue(nsCSSProps::LookupFontDesc(propertyName), aResult);
  1.1597 +}
  1.1598 +
  1.1599 +NS_IMETHODIMP
  1.1600 +nsCSSFontFaceStyleDecl::GetAuthoredPropertyValue(const nsAString& propertyName,
  1.1601 +                                                 nsAString& aResult)
  1.1602 +{
  1.1603 +  // We don't return any authored property values different from
  1.1604 +  // GetPropertyValue, currently.
  1.1605 +  return GetPropertyValue(nsCSSProps::LookupFontDesc(propertyName), aResult);
  1.1606 +}
  1.1607 +
  1.1608 +// nsIDOMCSSValue getPropertyCSSValue (in DOMString propertyName);
  1.1609 +already_AddRefed<dom::CSSValue>
  1.1610 +nsCSSFontFaceStyleDecl::GetPropertyCSSValue(const nsAString & propertyName,
  1.1611 +                                            ErrorResult& aRv)
  1.1612 +{
  1.1613 +  // ??? nsDOMCSSDeclaration returns null/NS_OK, but that seems wrong.
  1.1614 +  aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
  1.1615 +  return nullptr;
  1.1616 +}
  1.1617 +
  1.1618 +// DOMString removeProperty (in DOMString propertyName) raises (DOMException);
  1.1619 +NS_IMETHODIMP
  1.1620 +nsCSSFontFaceStyleDecl::RemoveProperty(const nsAString & propertyName,
  1.1621 +                                       nsAString & aResult)
  1.1622 +{
  1.1623 +  nsCSSFontDesc descID = nsCSSProps::LookupFontDesc(propertyName);
  1.1624 +  NS_ASSERTION(descID >= eCSSFontDesc_UNKNOWN &&
  1.1625 +               descID < eCSSFontDesc_COUNT,
  1.1626 +               "LookupFontDesc returned value out of range");
  1.1627 +
  1.1628 +  if (descID == eCSSFontDesc_UNKNOWN) {
  1.1629 +    aResult.Truncate();
  1.1630 +  } else {
  1.1631 +    nsresult rv = GetPropertyValue(descID, aResult);
  1.1632 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1633 +    (this->*nsCSSFontFaceStyleDecl::Fields[descID]).Reset();
  1.1634 +  }
  1.1635 +  return NS_OK;
  1.1636 +}
  1.1637 +
  1.1638 +// DOMString getPropertyPriority (in DOMString propertyName);
  1.1639 +NS_IMETHODIMP
  1.1640 +nsCSSFontFaceStyleDecl::GetPropertyPriority(const nsAString & propertyName,
  1.1641 +                                            nsAString & aResult)
  1.1642 +{
  1.1643 +  // font descriptors do not have priorities at present
  1.1644 +  aResult.Truncate();
  1.1645 +  return NS_OK;
  1.1646 +}
  1.1647 +
  1.1648 +// void setProperty (in DOMString propertyName, in DOMString value,
  1.1649 +//                   in DOMString priority)  raises (DOMException);
  1.1650 +NS_IMETHODIMP
  1.1651 +nsCSSFontFaceStyleDecl::SetProperty(const nsAString & propertyName,
  1.1652 +                                    const nsAString & value,
  1.1653 +                                    const nsAString & priority)
  1.1654 +{
  1.1655 +  return NS_ERROR_NOT_IMPLEMENTED; // bug 443978
  1.1656 +}
  1.1657 +
  1.1658 +// readonly attribute unsigned long length;
  1.1659 +NS_IMETHODIMP
  1.1660 +nsCSSFontFaceStyleDecl::GetLength(uint32_t *aLength)
  1.1661 +{
  1.1662 +  uint32_t len = 0;
  1.1663 +  for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
  1.1664 +       id < eCSSFontDesc_COUNT;
  1.1665 +       id = nsCSSFontDesc(id + 1))
  1.1666 +    if ((this->*nsCSSFontFaceStyleDecl::Fields[id]).GetUnit() != eCSSUnit_Null)
  1.1667 +      len++;
  1.1668 +
  1.1669 +  *aLength = len;
  1.1670 +  return NS_OK;
  1.1671 +}
  1.1672 +
  1.1673 +// DOMString item (in unsigned long index);
  1.1674 +NS_IMETHODIMP
  1.1675 +nsCSSFontFaceStyleDecl::Item(uint32_t aIndex, nsAString& aReturn)
  1.1676 +{
  1.1677 +  bool found;
  1.1678 +  IndexedGetter(aIndex, found, aReturn);
  1.1679 +  if (!found) {
  1.1680 +    aReturn.Truncate();
  1.1681 +  }
  1.1682 +  return NS_OK;
  1.1683 +}
  1.1684 +
  1.1685 +void
  1.1686 +nsCSSFontFaceStyleDecl::IndexedGetter(uint32_t index, bool& aFound, nsAString & aResult)
  1.1687 +{
  1.1688 +  int32_t nset = -1;
  1.1689 +  for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
  1.1690 +       id < eCSSFontDesc_COUNT;
  1.1691 +       id = nsCSSFontDesc(id + 1)) {
  1.1692 +    if ((this->*nsCSSFontFaceStyleDecl::Fields[id]).GetUnit()
  1.1693 +        != eCSSUnit_Null) {
  1.1694 +      nset++;
  1.1695 +      if (nset == int32_t(index)) {
  1.1696 +        aFound = true;
  1.1697 +        aResult.AssignASCII(nsCSSProps::GetStringValue(id).get());
  1.1698 +        return;
  1.1699 +      }
  1.1700 +    }
  1.1701 +  }
  1.1702 +  aFound = false;
  1.1703 +}
  1.1704 +
  1.1705 +// readonly attribute nsIDOMCSSRule parentRule;
  1.1706 +NS_IMETHODIMP
  1.1707 +nsCSSFontFaceStyleDecl::GetParentRule(nsIDOMCSSRule** aParentRule)
  1.1708 +{
  1.1709 +  NS_IF_ADDREF(*aParentRule = ContainingRule()->GetDOMRule());
  1.1710 +  return NS_OK;
  1.1711 +}
  1.1712 +
  1.1713 +NS_IMETHODIMP
  1.1714 +nsCSSFontFaceStyleDecl::GetPropertyValue(const nsCSSProperty aPropID,
  1.1715 +                                         nsAString& aValue)
  1.1716 +{
  1.1717 +  return
  1.1718 +    GetPropertyValue(NS_ConvertUTF8toUTF16(nsCSSProps::GetStringValue(aPropID)),
  1.1719 +                     aValue);
  1.1720 +}
  1.1721 +
  1.1722 +NS_IMETHODIMP
  1.1723 +nsCSSFontFaceStyleDecl::SetPropertyValue(const nsCSSProperty aPropID,
  1.1724 +                                         const nsAString& aValue)
  1.1725 +{
  1.1726 +  return SetProperty(NS_ConvertUTF8toUTF16(nsCSSProps::GetStringValue(aPropID)),
  1.1727 +                     aValue, EmptyString());
  1.1728 +}
  1.1729 +
  1.1730 +nsINode*
  1.1731 +nsCSSFontFaceStyleDecl::GetParentObject()
  1.1732 +{
  1.1733 +  return ContainingRule()->GetDocument();
  1.1734 +}
  1.1735 +
  1.1736 +JSObject*
  1.1737 +nsCSSFontFaceStyleDecl::WrapObject(JSContext *cx)
  1.1738 +{
  1.1739 +  return mozilla::dom::CSSStyleDeclarationBinding::Wrap(cx, this);
  1.1740 +}
  1.1741 +
  1.1742 +// -------------------------------------------
  1.1743 +// nsCSSFontFaceRule
  1.1744 +// 
  1.1745 +
  1.1746 +/* virtual */ already_AddRefed<css::Rule>
  1.1747 +nsCSSFontFaceRule::Clone() const
  1.1748 +{
  1.1749 +  nsRefPtr<css::Rule> clone = new nsCSSFontFaceRule(*this);
  1.1750 +  return clone.forget();
  1.1751 +}
  1.1752 +
  1.1753 +NS_IMPL_CYCLE_COLLECTING_ADDREF(nsCSSFontFaceRule)
  1.1754 +NS_IMPL_CYCLE_COLLECTING_RELEASE(nsCSSFontFaceRule)
  1.1755 +
  1.1756 +NS_IMPL_CYCLE_COLLECTION_CLASS(nsCSSFontFaceRule)
  1.1757 +
  1.1758 +NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(nsCSSFontFaceRule)
  1.1759 +  // Trace the wrapper for our declaration.  This just expands out
  1.1760 +  // NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER which we can't use
  1.1761 +  // directly because the wrapper is on the declaration, not on us.
  1.1762 +  tmp->mDecl.TraceWrapper(aCallbacks, aClosure);
  1.1763 +NS_IMPL_CYCLE_COLLECTION_TRACE_END
  1.1764 +
  1.1765 +NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsCSSFontFaceRule)
  1.1766 +  // Unlink the wrapper for our declaraton.  This just expands out
  1.1767 +  // NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER which we can't use
  1.1768 +  // directly because the wrapper is on the declaration, not on us.
  1.1769 +  tmp->mDecl.ReleaseWrapper(static_cast<nsISupports*>(p));
  1.1770 +NS_IMPL_CYCLE_COLLECTION_UNLINK_END
  1.1771 +
  1.1772 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsCSSFontFaceRule)
  1.1773 +  // Just NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS here: that will call
  1.1774 +  // into our Trace hook, where we do the right thing with declarations
  1.1775 +  // already.
  1.1776 +  NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
  1.1777 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
  1.1778 +
  1.1779 +DOMCI_DATA(CSSFontFaceRule, nsCSSFontFaceRule)
  1.1780 +
  1.1781 +// QueryInterface implementation for nsCSSFontFaceRule
  1.1782 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsCSSFontFaceRule)
  1.1783 +  NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
  1.1784 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSFontFaceRule)
  1.1785 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
  1.1786 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
  1.1787 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSFontFaceRule)
  1.1788 +NS_INTERFACE_MAP_END
  1.1789 +
  1.1790 +IMPL_STYLE_RULE_INHERIT(nsCSSFontFaceRule, Rule)
  1.1791 +
  1.1792 +#ifdef DEBUG
  1.1793 +void
  1.1794 +nsCSSFontFaceRule::List(FILE* out, int32_t aIndent) const
  1.1795 +{
  1.1796 +  nsCString baseInd, descInd;
  1.1797 +  for (int32_t indent = aIndent; --indent >= 0; ) {
  1.1798 +    baseInd.AppendLiteral("  ");
  1.1799 +    descInd.AppendLiteral("  ");
  1.1800 +  }
  1.1801 +  descInd.AppendLiteral("  ");
  1.1802 +
  1.1803 +  nsString descStr;
  1.1804 +
  1.1805 +  fprintf(out, "%s@font-face {\n", baseInd.get());
  1.1806 +  for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
  1.1807 +       id < eCSSFontDesc_COUNT;
  1.1808 +       id = nsCSSFontDesc(id + 1))
  1.1809 +    if ((mDecl.*nsCSSFontFaceStyleDecl::Fields[id]).GetUnit()
  1.1810 +        != eCSSUnit_Null) {
  1.1811 +      if (NS_FAILED(mDecl.GetPropertyValue(id, descStr)))
  1.1812 +        descStr.AssignLiteral("#<serialization error>");
  1.1813 +      else if (descStr.Length() == 0)
  1.1814 +        descStr.AssignLiteral("#<serialization missing>");
  1.1815 +      fprintf(out, "%s%s: %s\n",
  1.1816 +              descInd.get(), nsCSSProps::GetStringValue(id).get(),
  1.1817 +              NS_ConvertUTF16toUTF8(descStr).get());
  1.1818 +    }
  1.1819 +  fprintf(out, "%s}\n", baseInd.get());
  1.1820 +}
  1.1821 +#endif
  1.1822 +
  1.1823 +/* virtual */ int32_t
  1.1824 +nsCSSFontFaceRule::GetType() const
  1.1825 +{
  1.1826 +  return Rule::FONT_FACE_RULE;
  1.1827 +}
  1.1828 +
  1.1829 +NS_IMETHODIMP
  1.1830 +nsCSSFontFaceRule::GetType(uint16_t* aType)
  1.1831 +{
  1.1832 +  *aType = nsIDOMCSSRule::FONT_FACE_RULE;
  1.1833 +  return NS_OK;
  1.1834 +}
  1.1835 +
  1.1836 +NS_IMETHODIMP
  1.1837 +nsCSSFontFaceRule::GetCssText(nsAString& aCssText)
  1.1838 +{
  1.1839 +  nsAutoString propText;
  1.1840 +  mDecl.GetCssText(propText);
  1.1841 +
  1.1842 +  aCssText.AssignLiteral("@font-face {\n");
  1.1843 +  aCssText.Append(propText);
  1.1844 +  aCssText.Append('}');
  1.1845 +  return NS_OK;
  1.1846 +}
  1.1847 +
  1.1848 +NS_IMETHODIMP
  1.1849 +nsCSSFontFaceRule::SetCssText(const nsAString& aCssText)
  1.1850 +{
  1.1851 +  return NS_ERROR_NOT_IMPLEMENTED; // bug 443978
  1.1852 +}
  1.1853 +
  1.1854 +NS_IMETHODIMP
  1.1855 +nsCSSFontFaceRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
  1.1856 +{
  1.1857 +  return Rule::GetParentStyleSheet(aSheet);
  1.1858 +}
  1.1859 +
  1.1860 +NS_IMETHODIMP
  1.1861 +nsCSSFontFaceRule::GetParentRule(nsIDOMCSSRule** aParentRule)
  1.1862 +{
  1.1863 +  return Rule::GetParentRule(aParentRule);
  1.1864 +}
  1.1865 +
  1.1866 +NS_IMETHODIMP
  1.1867 +nsCSSFontFaceRule::GetStyle(nsIDOMCSSStyleDeclaration** aStyle)
  1.1868 +{
  1.1869 +  NS_IF_ADDREF(*aStyle = &mDecl);
  1.1870 +  return NS_OK;
  1.1871 +}
  1.1872 +
  1.1873 +// Arguably these should forward to nsCSSFontFaceStyleDecl methods.
  1.1874 +void
  1.1875 +nsCSSFontFaceRule::SetDesc(nsCSSFontDesc aDescID, nsCSSValue const & aValue)
  1.1876 +{
  1.1877 +  NS_PRECONDITION(aDescID > eCSSFontDesc_UNKNOWN &&
  1.1878 +                  aDescID < eCSSFontDesc_COUNT,
  1.1879 +                  "aDescID out of range in nsCSSFontFaceRule::SetDesc");
  1.1880 +
  1.1881 +  // FIXME: handle dynamic changes
  1.1882 +
  1.1883 +  mDecl.*nsCSSFontFaceStyleDecl::Fields[aDescID] = aValue;
  1.1884 +}
  1.1885 +
  1.1886 +void
  1.1887 +nsCSSFontFaceRule::GetDesc(nsCSSFontDesc aDescID, nsCSSValue & aValue)
  1.1888 +{
  1.1889 +  NS_PRECONDITION(aDescID > eCSSFontDesc_UNKNOWN &&
  1.1890 +                  aDescID < eCSSFontDesc_COUNT,
  1.1891 +                  "aDescID out of range in nsCSSFontFaceRule::GetDesc");
  1.1892 +
  1.1893 +  aValue = mDecl.*nsCSSFontFaceStyleDecl::Fields[aDescID];
  1.1894 +}
  1.1895 +
  1.1896 +/* virtual */ size_t
  1.1897 +nsCSSFontFaceRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
  1.1898 +{
  1.1899 +  return aMallocSizeOf(this);
  1.1900 +
  1.1901 +  // Measurement of the following members may be added later if DMD finds it is
  1.1902 +  // worthwhile:
  1.1903 +  // - mDecl
  1.1904 +}
  1.1905 +
  1.1906 +
  1.1907 +// -----------------------------------
  1.1908 +// nsCSSFontFeatureValuesRule
  1.1909 +//
  1.1910 +
  1.1911 +/* virtual */ already_AddRefed<css::Rule>
  1.1912 +nsCSSFontFeatureValuesRule::Clone() const
  1.1913 +{
  1.1914 +  nsRefPtr<css::Rule> clone = new nsCSSFontFeatureValuesRule(*this);
  1.1915 +  return clone.forget();
  1.1916 +}
  1.1917 +
  1.1918 +NS_IMPL_ADDREF(nsCSSFontFeatureValuesRule)
  1.1919 +NS_IMPL_RELEASE(nsCSSFontFeatureValuesRule)
  1.1920 +
  1.1921 +DOMCI_DATA(CSSFontFeatureValuesRule, nsCSSFontFeatureValuesRule)
  1.1922 +
  1.1923 +// QueryInterface implementation for nsCSSFontFeatureValuesRule
  1.1924 +NS_INTERFACE_MAP_BEGIN(nsCSSFontFeatureValuesRule)
  1.1925 +  NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
  1.1926 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSFontFeatureValuesRule)
  1.1927 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
  1.1928 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
  1.1929 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSFontFeatureValuesRule)
  1.1930 +NS_INTERFACE_MAP_END
  1.1931 +
  1.1932 +IMPL_STYLE_RULE_INHERIT(nsCSSFontFeatureValuesRule, Rule)
  1.1933 +
  1.1934 +static void
  1.1935 +FamilyListToString(const nsTArray<nsString>& aFamilyList, nsAString& aOutStr)
  1.1936 +{
  1.1937 +  uint32_t i, n = aFamilyList.Length();
  1.1938 +
  1.1939 +  for (i = 0; i < n; i++) {
  1.1940 +    nsStyleUtil::AppendEscapedCSSString(aFamilyList[i], aOutStr);
  1.1941 +    if (i != n - 1) {
  1.1942 +      aOutStr.AppendLiteral(", ");
  1.1943 +    }
  1.1944 +  }
  1.1945 +}
  1.1946 +
  1.1947 +static void
  1.1948 +FeatureValuesToString(
  1.1949 +  const nsTArray<gfxFontFeatureValueSet::FeatureValues>& aFeatureValues,
  1.1950 +  nsAString& aOutStr)
  1.1951 +{
  1.1952 +  uint32_t i, n;
  1.1953 +
  1.1954 +  // append values
  1.1955 +  n = aFeatureValues.Length();
  1.1956 +  for (i = 0; i < n; i++) {
  1.1957 +    const gfxFontFeatureValueSet::FeatureValues& fv = aFeatureValues[i];
  1.1958 +
  1.1959 +    // @alternate
  1.1960 +    aOutStr.AppendLiteral("  @");
  1.1961 +    nsAutoString functAlt;
  1.1962 +    nsStyleUtil::GetFunctionalAlternatesName(fv.alternate, functAlt);
  1.1963 +    aOutStr.Append(functAlt);
  1.1964 +    aOutStr.AppendLiteral(" {");
  1.1965 +
  1.1966 +    // for each ident-values tuple
  1.1967 +    uint32_t j, numValues = fv.valuelist.Length();
  1.1968 +    for (j = 0; j < numValues; j++) {
  1.1969 +      aOutStr.AppendLiteral(" ");
  1.1970 +      const gfxFontFeatureValueSet::ValueList& vlist = fv.valuelist[j];
  1.1971 +      nsStyleUtil::AppendEscapedCSSIdent(vlist.name, aOutStr);
  1.1972 +      aOutStr.AppendLiteral(":");
  1.1973 +
  1.1974 +      uint32_t k, numSelectors = vlist.featureSelectors.Length();
  1.1975 +      for (k = 0; k < numSelectors; k++) {
  1.1976 +        aOutStr.AppendLiteral(" ");
  1.1977 +        aOutStr.AppendInt(vlist.featureSelectors[k]);
  1.1978 +      }
  1.1979 +
  1.1980 +      aOutStr.AppendLiteral(";");
  1.1981 +    }
  1.1982 +    aOutStr.AppendLiteral(" }\n");
  1.1983 +  }
  1.1984 +}
  1.1985 +
  1.1986 +static void
  1.1987 +FontFeatureValuesRuleToString(
  1.1988 +  const nsTArray<nsString>& aFamilyList,
  1.1989 +  const nsTArray<gfxFontFeatureValueSet::FeatureValues>& aFeatureValues,
  1.1990 +  nsAString& aOutStr)
  1.1991 +{
  1.1992 +  aOutStr.AssignLiteral("@font-feature-values ");
  1.1993 +  nsAutoString familyListStr, valueTextStr;
  1.1994 +  FamilyListToString(aFamilyList, familyListStr);
  1.1995 +  aOutStr.Append(familyListStr);
  1.1996 +  aOutStr.AppendLiteral(" {\n");
  1.1997 +  FeatureValuesToString(aFeatureValues, valueTextStr);
  1.1998 +  aOutStr.Append(valueTextStr);
  1.1999 +  aOutStr.AppendLiteral("}");
  1.2000 +}
  1.2001 +
  1.2002 +#ifdef DEBUG
  1.2003 +void
  1.2004 +nsCSSFontFeatureValuesRule::List(FILE* out, int32_t aIndent) const
  1.2005 +{
  1.2006 +  nsAutoString text;
  1.2007 +  FontFeatureValuesRuleToString(mFamilyList, mFeatureValues, text);
  1.2008 +  NS_ConvertUTF16toUTF8 utf8(text);
  1.2009 +
  1.2010 +  // replace newlines with newlines plus indent spaces
  1.2011 +  char* indent = new char[(aIndent + 1) * 2];
  1.2012 +  int32_t i;
  1.2013 +  for (i = 1; i < (aIndent + 1) * 2 - 1; i++) {
  1.2014 +    indent[i] = 0x20;
  1.2015 +  }
  1.2016 +  indent[0] = 0xa;
  1.2017 +  indent[aIndent * 2 + 1] = 0;
  1.2018 +  utf8.ReplaceSubstring("\n", indent);
  1.2019 +  delete [] indent;
  1.2020 +
  1.2021 +  for (i = aIndent; --i >= 0; ) fputs("  ", out);
  1.2022 +  fprintf(out, "%s\n", utf8.get());
  1.2023 +}
  1.2024 +#endif
  1.2025 +
  1.2026 +/* virtual */ int32_t
  1.2027 +nsCSSFontFeatureValuesRule::GetType() const
  1.2028 +{
  1.2029 +  return Rule::FONT_FEATURE_VALUES_RULE;
  1.2030 +}
  1.2031 +
  1.2032 +NS_IMETHODIMP
  1.2033 +nsCSSFontFeatureValuesRule::GetType(uint16_t* aType)
  1.2034 +{
  1.2035 +  *aType = nsIDOMCSSRule::FONT_FEATURE_VALUES_RULE;
  1.2036 +  return NS_OK;
  1.2037 +}
  1.2038 +
  1.2039 +NS_IMETHODIMP
  1.2040 +nsCSSFontFeatureValuesRule::GetCssText(nsAString& aCssText)
  1.2041 +{
  1.2042 +  FontFeatureValuesRuleToString(mFamilyList, mFeatureValues, aCssText);
  1.2043 +  return NS_OK;
  1.2044 +}
  1.2045 +
  1.2046 +NS_IMETHODIMP
  1.2047 +nsCSSFontFeatureValuesRule::SetCssText(const nsAString& aCssText)
  1.2048 +{
  1.2049 +  // FIXME: implement???
  1.2050 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.2051 +}
  1.2052 +
  1.2053 +NS_IMETHODIMP
  1.2054 +nsCSSFontFeatureValuesRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
  1.2055 +{
  1.2056 +  return Rule::GetParentStyleSheet(aSheet);
  1.2057 +}
  1.2058 +
  1.2059 +NS_IMETHODIMP
  1.2060 +nsCSSFontFeatureValuesRule::GetParentRule(nsIDOMCSSRule** aParentRule)
  1.2061 +{
  1.2062 +  return Rule::GetParentRule(aParentRule);
  1.2063 +}
  1.2064 +
  1.2065 +NS_IMETHODIMP
  1.2066 +nsCSSFontFeatureValuesRule::GetFontFamily(nsAString& aFontFamily)
  1.2067 +{
  1.2068 +  FamilyListToString(mFamilyList, aFontFamily);
  1.2069 +  return NS_OK;
  1.2070 +}
  1.2071 +
  1.2072 +NS_IMETHODIMP
  1.2073 +nsCSSFontFeatureValuesRule::SetFontFamily(const nsAString& aFontFamily)
  1.2074 +{
  1.2075 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.2076 +}
  1.2077 +
  1.2078 +NS_IMETHODIMP
  1.2079 +nsCSSFontFeatureValuesRule::GetValueText(nsAString& aValueText)
  1.2080 +{
  1.2081 +  FeatureValuesToString(mFeatureValues, aValueText);
  1.2082 +  return NS_OK;
  1.2083 +}
  1.2084 +
  1.2085 +NS_IMETHODIMP
  1.2086 +nsCSSFontFeatureValuesRule::SetValueText(const nsAString& aValueText)
  1.2087 +{
  1.2088 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.2089 +}
  1.2090 +
  1.2091 +struct MakeFamilyArray {
  1.2092 +  MakeFamilyArray(nsTArray<nsString>& aFamilyArray)
  1.2093 +    : familyArray(aFamilyArray), hasGeneric(false)
  1.2094 +  {}
  1.2095 +
  1.2096 +  static bool
  1.2097 +  AddFamily(const nsString& aFamily, bool aGeneric, void* aData)
  1.2098 +  {
  1.2099 +    MakeFamilyArray *familyArr = reinterpret_cast<MakeFamilyArray*> (aData);
  1.2100 +    if (!aGeneric && !aFamily.IsEmpty()) {
  1.2101 +      familyArr->familyArray.AppendElement(aFamily);
  1.2102 +    }
  1.2103 +    if (aGeneric) {
  1.2104 +      familyArr->hasGeneric = true;
  1.2105 +    }
  1.2106 +    return true;
  1.2107 +  }
  1.2108 +
  1.2109 +  nsTArray<nsString>& familyArray;
  1.2110 +  bool hasGeneric;
  1.2111 +};
  1.2112 +
  1.2113 +void
  1.2114 +nsCSSFontFeatureValuesRule::SetFamilyList(const nsAString& aFamilyList,
  1.2115 +                                          bool& aContainsGeneric)
  1.2116 +{
  1.2117 +  nsFont font(aFamilyList, 0, 0, 0, 0, 0, 0);
  1.2118 +  MakeFamilyArray families(mFamilyList);
  1.2119 +  font.EnumerateFamilies(MakeFamilyArray::AddFamily, (void*) &families);
  1.2120 +  aContainsGeneric = families.hasGeneric;
  1.2121 +}
  1.2122 +
  1.2123 +void
  1.2124 +nsCSSFontFeatureValuesRule::AddValueList(int32_t aVariantAlternate,
  1.2125 +                     nsTArray<gfxFontFeatureValueSet::ValueList>& aValueList)
  1.2126 +{
  1.2127 +  uint32_t i, len = mFeatureValues.Length();
  1.2128 +  bool foundAlternate = false;
  1.2129 +
  1.2130 +  // add to an existing list for a given property value
  1.2131 +  for (i = 0; i < len; i++) {
  1.2132 +    gfxFontFeatureValueSet::FeatureValues& f = mFeatureValues.ElementAt(i);
  1.2133 +
  1.2134 +    if (f.alternate == uint32_t(aVariantAlternate)) {
  1.2135 +      f.valuelist.AppendElements(aValueList);
  1.2136 +      foundAlternate = true;
  1.2137 +      break;
  1.2138 +    }
  1.2139 +  }
  1.2140 +
  1.2141 +  // create a new list for a given property value
  1.2142 +  if (!foundAlternate) {
  1.2143 +    gfxFontFeatureValueSet::FeatureValues &f = *mFeatureValues.AppendElement();
  1.2144 +    f.alternate = aVariantAlternate;
  1.2145 +    f.valuelist.AppendElements(aValueList);
  1.2146 +  }
  1.2147 +}
  1.2148 +
  1.2149 +size_t
  1.2150 +nsCSSFontFeatureValuesRule::SizeOfIncludingThis(
  1.2151 +  MallocSizeOf aMallocSizeOf) const
  1.2152 +{
  1.2153 +  return aMallocSizeOf(this);
  1.2154 +}
  1.2155 +
  1.2156 +// -------------------------------------------
  1.2157 +// nsCSSKeyframeStyleDeclaration
  1.2158 +//
  1.2159 +
  1.2160 +nsCSSKeyframeStyleDeclaration::nsCSSKeyframeStyleDeclaration(nsCSSKeyframeRule *aRule)
  1.2161 +  : mRule(aRule)
  1.2162 +{
  1.2163 +}
  1.2164 +
  1.2165 +nsCSSKeyframeStyleDeclaration::~nsCSSKeyframeStyleDeclaration()
  1.2166 +{
  1.2167 +  NS_ASSERTION(!mRule, "DropReference not called.");
  1.2168 +}
  1.2169 +
  1.2170 +NS_IMPL_CYCLE_COLLECTING_ADDREF(nsCSSKeyframeStyleDeclaration)
  1.2171 +NS_IMPL_CYCLE_COLLECTING_RELEASE(nsCSSKeyframeStyleDeclaration)
  1.2172 +
  1.2173 +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(nsCSSKeyframeStyleDeclaration)
  1.2174 +
  1.2175 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsCSSKeyframeStyleDeclaration)
  1.2176 +  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
  1.2177 +NS_INTERFACE_MAP_END_INHERITING(nsDOMCSSDeclaration)
  1.2178 +
  1.2179 +css::Declaration*
  1.2180 +nsCSSKeyframeStyleDeclaration::GetCSSDeclaration(bool aAllocate)
  1.2181 +{
  1.2182 +  if (mRule) {
  1.2183 +    return mRule->Declaration();
  1.2184 +  } else {
  1.2185 +    return nullptr;
  1.2186 +  }
  1.2187 +}
  1.2188 +
  1.2189 +void
  1.2190 +nsCSSKeyframeStyleDeclaration::GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv)
  1.2191 +{
  1.2192 +  GetCSSParsingEnvironmentForRule(mRule, aCSSParseEnv);
  1.2193 +}
  1.2194 +
  1.2195 +NS_IMETHODIMP
  1.2196 +nsCSSKeyframeStyleDeclaration::GetParentRule(nsIDOMCSSRule **aParent)
  1.2197 +{
  1.2198 +  NS_ENSURE_ARG_POINTER(aParent);
  1.2199 +
  1.2200 +  NS_IF_ADDREF(*aParent = mRule);
  1.2201 +  return NS_OK;
  1.2202 +}
  1.2203 +
  1.2204 +nsresult
  1.2205 +nsCSSKeyframeStyleDeclaration::SetCSSDeclaration(css::Declaration* aDecl)
  1.2206 +{
  1.2207 +  NS_ABORT_IF_FALSE(aDecl, "must be non-null");
  1.2208 +  mRule->ChangeDeclaration(aDecl);
  1.2209 +  return NS_OK;
  1.2210 +}
  1.2211 +
  1.2212 +nsIDocument*
  1.2213 +nsCSSKeyframeStyleDeclaration::DocToUpdate()
  1.2214 +{
  1.2215 +  return nullptr;
  1.2216 +}
  1.2217 +
  1.2218 +nsINode*
  1.2219 +nsCSSKeyframeStyleDeclaration::GetParentObject()
  1.2220 +{
  1.2221 +  return mRule ? mRule->GetDocument() : nullptr;
  1.2222 +}
  1.2223 +
  1.2224 +// -------------------------------------------
  1.2225 +// nsCSSKeyframeRule
  1.2226 +//
  1.2227 +
  1.2228 +nsCSSKeyframeRule::nsCSSKeyframeRule(const nsCSSKeyframeRule& aCopy)
  1.2229 +  // copy everything except our reference count and mDOMDeclaration
  1.2230 +  : Rule(aCopy)
  1.2231 +  , mKeys(aCopy.mKeys)
  1.2232 +  , mDeclaration(new css::Declaration(*aCopy.mDeclaration))
  1.2233 +{
  1.2234 +}
  1.2235 +
  1.2236 +nsCSSKeyframeRule::~nsCSSKeyframeRule()
  1.2237 +{
  1.2238 +  if (mDOMDeclaration) {
  1.2239 +    mDOMDeclaration->DropReference();
  1.2240 +  }
  1.2241 +}
  1.2242 +
  1.2243 +/* virtual */ already_AddRefed<css::Rule>
  1.2244 +nsCSSKeyframeRule::Clone() const
  1.2245 +{
  1.2246 +  nsRefPtr<css::Rule> clone = new nsCSSKeyframeRule(*this);
  1.2247 +  return clone.forget();
  1.2248 +}
  1.2249 +
  1.2250 +NS_IMPL_CYCLE_COLLECTING_ADDREF(nsCSSKeyframeRule)
  1.2251 +NS_IMPL_CYCLE_COLLECTING_RELEASE(nsCSSKeyframeRule)
  1.2252 +
  1.2253 +NS_IMPL_CYCLE_COLLECTION_CLASS(nsCSSKeyframeRule)
  1.2254 +
  1.2255 +NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsCSSKeyframeRule)
  1.2256 +  if (tmp->mDOMDeclaration) {
  1.2257 +    tmp->mDOMDeclaration->DropReference();
  1.2258 +    tmp->mDOMDeclaration = nullptr;
  1.2259 +  }
  1.2260 +NS_IMPL_CYCLE_COLLECTION_UNLINK_END
  1.2261 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsCSSKeyframeRule)
  1.2262 +  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDOMDeclaration)
  1.2263 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
  1.2264 +
  1.2265 +DOMCI_DATA(MozCSSKeyframeRule, nsCSSKeyframeRule)
  1.2266 +
  1.2267 +// QueryInterface implementation for nsCSSKeyframeRule
  1.2268 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsCSSKeyframeRule)
  1.2269 +  NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
  1.2270 +  NS_INTERFACE_MAP_ENTRY(nsIDOMMozCSSKeyframeRule)
  1.2271 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
  1.2272 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
  1.2273 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(MozCSSKeyframeRule)
  1.2274 +NS_INTERFACE_MAP_END
  1.2275 +
  1.2276 +IMPL_STYLE_RULE_INHERIT_GET_DOM_RULE_WEAK(nsCSSKeyframeRule, Rule)
  1.2277 +
  1.2278 +/* virtual */ void
  1.2279 +nsCSSKeyframeRule::MapRuleInfoInto(nsRuleData* aRuleData)
  1.2280 +{
  1.2281 +  // We need to implement MapRuleInfoInto because the animation manager
  1.2282 +  // constructs a rule node pointing to us in order to compute the
  1.2283 +  // styles it needs to animate.
  1.2284 +
  1.2285 +  // The spec says that !important declarations should just be ignored
  1.2286 +  NS_ASSERTION(!mDeclaration->HasImportantData(),
  1.2287 +               "Keyframe rules has !important data");
  1.2288 +
  1.2289 +  mDeclaration->MapNormalRuleInfoInto(aRuleData);
  1.2290 +}
  1.2291 +
  1.2292 +#ifdef DEBUG
  1.2293 +void
  1.2294 +nsCSSKeyframeRule::List(FILE* out, int32_t aIndent) const
  1.2295 +{
  1.2296 +  for (int32_t index = aIndent; --index >= 0; ) fputs("  ", out);
  1.2297 +
  1.2298 +  nsAutoString tmp;
  1.2299 +  DoGetKeyText(tmp);
  1.2300 +  fputs(NS_ConvertUTF16toUTF8(tmp).get(), out);
  1.2301 +  fputs(" ", out);
  1.2302 +  mDeclaration->List(out, aIndent);
  1.2303 +  fputs("\n", out);
  1.2304 +}
  1.2305 +#endif
  1.2306 +
  1.2307 +/* virtual */ int32_t
  1.2308 +nsCSSKeyframeRule::GetType() const
  1.2309 +{
  1.2310 +  return Rule::KEYFRAME_RULE;
  1.2311 +}
  1.2312 +
  1.2313 +NS_IMETHODIMP
  1.2314 +nsCSSKeyframeRule::GetType(uint16_t* aType)
  1.2315 +{
  1.2316 +  *aType = nsIDOMCSSRule::KEYFRAME_RULE;
  1.2317 +  return NS_OK;
  1.2318 +}
  1.2319 +
  1.2320 +NS_IMETHODIMP
  1.2321 +nsCSSKeyframeRule::GetCssText(nsAString& aCssText)
  1.2322 +{
  1.2323 +  DoGetKeyText(aCssText);
  1.2324 +  aCssText.AppendLiteral(" { ");
  1.2325 +  nsAutoString tmp;
  1.2326 +  mDeclaration->ToString(tmp);
  1.2327 +  aCssText.Append(tmp);
  1.2328 +  aCssText.AppendLiteral(" }");
  1.2329 +  return NS_OK;
  1.2330 +}
  1.2331 +
  1.2332 +NS_IMETHODIMP
  1.2333 +nsCSSKeyframeRule::SetCssText(const nsAString& aCssText)
  1.2334 +{
  1.2335 +  // FIXME: implement???
  1.2336 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.2337 +}
  1.2338 +
  1.2339 +NS_IMETHODIMP
  1.2340 +nsCSSKeyframeRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
  1.2341 +{
  1.2342 +  return Rule::GetParentStyleSheet(aSheet);
  1.2343 +}
  1.2344 +
  1.2345 +NS_IMETHODIMP
  1.2346 +nsCSSKeyframeRule::GetParentRule(nsIDOMCSSRule** aParentRule)
  1.2347 +{
  1.2348 +  return Rule::GetParentRule(aParentRule);
  1.2349 +}
  1.2350 +
  1.2351 +NS_IMETHODIMP
  1.2352 +nsCSSKeyframeRule::GetKeyText(nsAString& aKeyText)
  1.2353 +{
  1.2354 +  DoGetKeyText(aKeyText);
  1.2355 +  return NS_OK;
  1.2356 +}
  1.2357 +
  1.2358 +void
  1.2359 +nsCSSKeyframeRule::DoGetKeyText(nsAString& aKeyText) const
  1.2360 +{
  1.2361 +  aKeyText.Truncate();
  1.2362 +  uint32_t i = 0, i_end = mKeys.Length();
  1.2363 +  NS_ABORT_IF_FALSE(i_end != 0, "must have some keys");
  1.2364 +  for (;;) {
  1.2365 +    aKeyText.AppendFloat(mKeys[i] * 100.0f);
  1.2366 +    aKeyText.Append(char16_t('%'));
  1.2367 +    if (++i == i_end) {
  1.2368 +      break;
  1.2369 +    }
  1.2370 +    aKeyText.AppendLiteral(", ");
  1.2371 +  }
  1.2372 +}
  1.2373 +
  1.2374 +NS_IMETHODIMP
  1.2375 +nsCSSKeyframeRule::SetKeyText(const nsAString& aKeyText)
  1.2376 +{
  1.2377 +  nsCSSParser parser;
  1.2378 +
  1.2379 +  InfallibleTArray<float> newSelectors;
  1.2380 +  // FIXME: pass filename and line number
  1.2381 +  if (!parser.ParseKeyframeSelectorString(aKeyText, nullptr, 0, newSelectors)) {
  1.2382 +    // for now, we don't do anything if the parse fails
  1.2383 +    return NS_OK;
  1.2384 +  }
  1.2385 +
  1.2386 +  nsIDocument* doc = GetDocument();
  1.2387 +  MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
  1.2388 +
  1.2389 +  newSelectors.SwapElements(mKeys);
  1.2390 +
  1.2391 +  nsCSSStyleSheet* sheet = GetStyleSheet();
  1.2392 +  if (sheet) {
  1.2393 +    sheet->SetModifiedByChildRule();
  1.2394 +
  1.2395 +    if (doc) {
  1.2396 +      doc->StyleRuleChanged(sheet, this, this);
  1.2397 +    }
  1.2398 +  }
  1.2399 +
  1.2400 +  return NS_OK;
  1.2401 +}
  1.2402 +
  1.2403 +NS_IMETHODIMP
  1.2404 +nsCSSKeyframeRule::GetStyle(nsIDOMCSSStyleDeclaration** aStyle)
  1.2405 +{
  1.2406 +  if (!mDOMDeclaration) {
  1.2407 +    mDOMDeclaration = new nsCSSKeyframeStyleDeclaration(this);
  1.2408 +  }
  1.2409 +  NS_ADDREF(*aStyle = mDOMDeclaration);
  1.2410 +  return NS_OK;
  1.2411 +}
  1.2412 +
  1.2413 +void
  1.2414 +nsCSSKeyframeRule::ChangeDeclaration(css::Declaration* aDeclaration)
  1.2415 +{
  1.2416 +  // Our caller already did a BeginUpdate/EndUpdate, but with
  1.2417 +  // UPDATE_CONTENT, and we need UPDATE_STYLE to trigger work in
  1.2418 +  // PresShell::EndUpdate.
  1.2419 +  nsIDocument* doc = GetDocument();
  1.2420 +  MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
  1.2421 +
  1.2422 +  // Be careful to not assign to an nsAutoPtr if we would be assigning
  1.2423 +  // the thing it already holds.
  1.2424 +  if (aDeclaration != mDeclaration) {
  1.2425 +    mDeclaration = aDeclaration;
  1.2426 +  }
  1.2427 +
  1.2428 +  nsCSSStyleSheet* sheet = GetStyleSheet();
  1.2429 +  if (sheet) {
  1.2430 +    sheet->SetModifiedByChildRule();
  1.2431 +
  1.2432 +    if (doc) {
  1.2433 +      doc->StyleRuleChanged(sheet, this, this);
  1.2434 +    }
  1.2435 +  }
  1.2436 +}
  1.2437 +
  1.2438 +/* virtual */ size_t
  1.2439 +nsCSSKeyframeRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
  1.2440 +{
  1.2441 +  return aMallocSizeOf(this);
  1.2442 +
  1.2443 +  // Measurement of the following members may be added later if DMD finds it is
  1.2444 +  // worthwhile:
  1.2445 +  // - mKeys
  1.2446 +  // - mDeclaration
  1.2447 +  // - mDOMDeclaration
  1.2448 +}
  1.2449 +
  1.2450 +
  1.2451 +// -------------------------------------------
  1.2452 +// nsCSSKeyframesRule
  1.2453 +//
  1.2454 +
  1.2455 +nsCSSKeyframesRule::nsCSSKeyframesRule(const nsCSSKeyframesRule& aCopy)
  1.2456 +  // copy everything except our reference count.  GroupRule's copy
  1.2457 +  // constructor also doesn't copy the lazily-constructed
  1.2458 +  // mRuleCollection.
  1.2459 +  : GroupRule(aCopy),
  1.2460 +    mName(aCopy.mName)
  1.2461 +{
  1.2462 +}
  1.2463 +
  1.2464 +nsCSSKeyframesRule::~nsCSSKeyframesRule()
  1.2465 +{
  1.2466 +}
  1.2467 +
  1.2468 +/* virtual */ already_AddRefed<css::Rule>
  1.2469 +nsCSSKeyframesRule::Clone() const
  1.2470 +{
  1.2471 +  nsRefPtr<css::Rule> clone = new nsCSSKeyframesRule(*this);
  1.2472 +  return clone.forget();
  1.2473 +}
  1.2474 +
  1.2475 +NS_IMPL_ADDREF_INHERITED(nsCSSKeyframesRule, css::GroupRule)
  1.2476 +NS_IMPL_RELEASE_INHERITED(nsCSSKeyframesRule, css::GroupRule)
  1.2477 +
  1.2478 +DOMCI_DATA(MozCSSKeyframesRule, nsCSSKeyframesRule)
  1.2479 +
  1.2480 +// QueryInterface implementation for nsCSSKeyframesRule
  1.2481 +NS_INTERFACE_MAP_BEGIN(nsCSSKeyframesRule)
  1.2482 +  NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
  1.2483 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
  1.2484 +  NS_INTERFACE_MAP_ENTRY(nsIDOMMozCSSKeyframesRule)
  1.2485 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
  1.2486 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(MozCSSKeyframesRule)
  1.2487 +NS_INTERFACE_MAP_END_INHERITING(GroupRule)
  1.2488 +
  1.2489 +#ifdef DEBUG
  1.2490 +void
  1.2491 +nsCSSKeyframesRule::List(FILE* out, int32_t aIndent) const
  1.2492 +{
  1.2493 +  for (int32_t indent = aIndent; --indent >= 0; ) fputs("  ", out);
  1.2494 +
  1.2495 +  fprintf(out, "@keyframes %s", NS_ConvertUTF16toUTF8(mName).get());
  1.2496 +  GroupRule::List(out, aIndent);
  1.2497 +}
  1.2498 +#endif
  1.2499 +
  1.2500 +/* virtual */ int32_t
  1.2501 +nsCSSKeyframesRule::GetType() const
  1.2502 +{
  1.2503 +  return Rule::KEYFRAMES_RULE;
  1.2504 +}
  1.2505 +
  1.2506 +NS_IMETHODIMP
  1.2507 +nsCSSKeyframesRule::GetType(uint16_t* aType)
  1.2508 +{
  1.2509 +  *aType = nsIDOMCSSRule::KEYFRAMES_RULE;
  1.2510 +  return NS_OK;
  1.2511 +}
  1.2512 +
  1.2513 +NS_IMETHODIMP
  1.2514 +nsCSSKeyframesRule::GetCssText(nsAString& aCssText)
  1.2515 +{
  1.2516 +  aCssText.AssignLiteral("@keyframes ");
  1.2517 +  aCssText.Append(mName);
  1.2518 +  aCssText.AppendLiteral(" {\n");
  1.2519 +  nsAutoString tmp;
  1.2520 +  for (uint32_t i = 0, i_end = mRules.Count(); i != i_end; ++i) {
  1.2521 +    static_cast<nsCSSKeyframeRule*>(mRules[i])->GetCssText(tmp);
  1.2522 +    aCssText.Append(tmp);
  1.2523 +    aCssText.AppendLiteral("\n");
  1.2524 +  }
  1.2525 +  aCssText.AppendLiteral("}");
  1.2526 +  return NS_OK;
  1.2527 +}
  1.2528 +
  1.2529 +NS_IMETHODIMP
  1.2530 +nsCSSKeyframesRule::SetCssText(const nsAString& aCssText)
  1.2531 +{
  1.2532 +  // FIXME: implement???
  1.2533 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.2534 +}
  1.2535 +
  1.2536 +NS_IMETHODIMP
  1.2537 +nsCSSKeyframesRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
  1.2538 +{
  1.2539 +  return GroupRule::GetParentStyleSheet(aSheet);
  1.2540 +}
  1.2541 +
  1.2542 +NS_IMETHODIMP
  1.2543 +nsCSSKeyframesRule::GetParentRule(nsIDOMCSSRule** aParentRule)
  1.2544 +{
  1.2545 +  return GroupRule::GetParentRule(aParentRule);
  1.2546 +}
  1.2547 +
  1.2548 +NS_IMETHODIMP
  1.2549 +nsCSSKeyframesRule::GetName(nsAString& aName)
  1.2550 +{
  1.2551 +  aName = mName;
  1.2552 +  return NS_OK;
  1.2553 +}
  1.2554 +
  1.2555 +NS_IMETHODIMP
  1.2556 +nsCSSKeyframesRule::SetName(const nsAString& aName)
  1.2557 +{
  1.2558 +  if (mName == aName) {
  1.2559 +    return NS_OK;
  1.2560 +  }
  1.2561 +
  1.2562 +  nsIDocument* doc = GetDocument();
  1.2563 +  MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
  1.2564 +
  1.2565 +  mName = aName;
  1.2566 +
  1.2567 +  nsCSSStyleSheet* sheet = GetStyleSheet();
  1.2568 +  if (sheet) {
  1.2569 +    sheet->SetModifiedByChildRule();
  1.2570 +
  1.2571 +    if (doc) {
  1.2572 +      doc->StyleRuleChanged(sheet, this, this);
  1.2573 +    }
  1.2574 +  }
  1.2575 +
  1.2576 +  return NS_OK;
  1.2577 +}
  1.2578 +
  1.2579 +NS_IMETHODIMP
  1.2580 +nsCSSKeyframesRule::GetCssRules(nsIDOMCSSRuleList* *aRuleList)
  1.2581 +{
  1.2582 +  return GroupRule::GetCssRules(aRuleList);
  1.2583 +}
  1.2584 +
  1.2585 +NS_IMETHODIMP
  1.2586 +nsCSSKeyframesRule::AppendRule(const nsAString& aRule)
  1.2587 +{
  1.2588 +  // The spec is confusing, and I think we should just append the rule,
  1.2589 +  // which also turns out to match WebKit:
  1.2590 +  // http://lists.w3.org/Archives/Public/www-style/2011Apr/0034.html
  1.2591 +  nsCSSParser parser;
  1.2592 +
  1.2593 +  // FIXME: pass filename and line number
  1.2594 +  nsRefPtr<nsCSSKeyframeRule> rule =
  1.2595 +    parser.ParseKeyframeRule(aRule, nullptr, 0);
  1.2596 +  if (rule) {
  1.2597 +    nsIDocument* doc = GetDocument();
  1.2598 +    MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
  1.2599 +
  1.2600 +    AppendStyleRule(rule);
  1.2601 +
  1.2602 +    nsCSSStyleSheet* sheet = GetStyleSheet();
  1.2603 +    if (sheet) {
  1.2604 +      sheet->SetModifiedByChildRule();
  1.2605 +
  1.2606 +      if (doc) {
  1.2607 +        doc->StyleRuleChanged(sheet, this, this);
  1.2608 +      }
  1.2609 +    }
  1.2610 +  }
  1.2611 +
  1.2612 +  return NS_OK;
  1.2613 +}
  1.2614 +
  1.2615 +static const uint32_t RULE_NOT_FOUND = uint32_t(-1);
  1.2616 +
  1.2617 +uint32_t
  1.2618 +nsCSSKeyframesRule::FindRuleIndexForKey(const nsAString& aKey)
  1.2619 +{
  1.2620 +  nsCSSParser parser;
  1.2621 +
  1.2622 +  InfallibleTArray<float> keys;
  1.2623 +  // FIXME: pass filename and line number
  1.2624 +  if (parser.ParseKeyframeSelectorString(aKey, nullptr, 0, keys)) {
  1.2625 +    // The spec isn't clear, but we'll match on the key list, which
  1.2626 +    // mostly matches what WebKit does, except we'll do last-match
  1.2627 +    // instead of first-match, and handling parsing differences better.
  1.2628 +    // http://lists.w3.org/Archives/Public/www-style/2011Apr/0036.html
  1.2629 +    // http://lists.w3.org/Archives/Public/www-style/2011Apr/0037.html
  1.2630 +    for (uint32_t i = mRules.Count(); i-- != 0; ) {
  1.2631 +      if (static_cast<nsCSSKeyframeRule*>(mRules[i])->GetKeys() == keys) {
  1.2632 +        return i;
  1.2633 +      }
  1.2634 +    }
  1.2635 +  }
  1.2636 +
  1.2637 +  return RULE_NOT_FOUND;
  1.2638 +}
  1.2639 +
  1.2640 +NS_IMETHODIMP
  1.2641 +nsCSSKeyframesRule::DeleteRule(const nsAString& aKey)
  1.2642 +{
  1.2643 +  uint32_t index = FindRuleIndexForKey(aKey);
  1.2644 +  if (index != RULE_NOT_FOUND) {
  1.2645 +    nsIDocument* doc = GetDocument();
  1.2646 +    MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
  1.2647 +
  1.2648 +    mRules.RemoveObjectAt(index);
  1.2649 +
  1.2650 +    nsCSSStyleSheet* sheet = GetStyleSheet();
  1.2651 +    if (sheet) {
  1.2652 +      sheet->SetModifiedByChildRule();
  1.2653 +
  1.2654 +      if (doc) {
  1.2655 +        doc->StyleRuleChanged(sheet, this, this);
  1.2656 +      }
  1.2657 +    }
  1.2658 +  }
  1.2659 +  return NS_OK;
  1.2660 +}
  1.2661 +
  1.2662 +NS_IMETHODIMP
  1.2663 +nsCSSKeyframesRule::FindRule(const nsAString& aKey,
  1.2664 +                             nsIDOMMozCSSKeyframeRule** aResult)
  1.2665 +{
  1.2666 +  uint32_t index = FindRuleIndexForKey(aKey);
  1.2667 +  if (index == RULE_NOT_FOUND) {
  1.2668 +    *aResult = nullptr;
  1.2669 +  } else {
  1.2670 +    NS_ADDREF(*aResult = static_cast<nsCSSKeyframeRule*>(mRules[index]));
  1.2671 +  }
  1.2672 +  return NS_OK;
  1.2673 +}
  1.2674 +
  1.2675 +// GroupRule interface
  1.2676 +/* virtual */ bool
  1.2677 +nsCSSKeyframesRule::UseForPresentation(nsPresContext* aPresContext,
  1.2678 +                                       nsMediaQueryResultCacheKey& aKey)
  1.2679 +{
  1.2680 +  NS_ABORT_IF_FALSE(false, "should not be called");
  1.2681 +  return false;
  1.2682 +}
  1.2683 +
  1.2684 +/* virtual */ size_t
  1.2685 +nsCSSKeyframesRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
  1.2686 +{
  1.2687 +  size_t n = aMallocSizeOf(this);
  1.2688 +  n += GroupRule::SizeOfExcludingThis(aMallocSizeOf);
  1.2689 +
  1.2690 +  // Measurement of the following members may be added later if DMD finds it is
  1.2691 +  // worthwhile:
  1.2692 +  // - mName
  1.2693 +
  1.2694 +  return n;
  1.2695 +}
  1.2696 +
  1.2697 +// -------------------------------------------
  1.2698 +// nsCSSPageStyleDeclaration
  1.2699 +//
  1.2700 +
  1.2701 +nsCSSPageStyleDeclaration::nsCSSPageStyleDeclaration(nsCSSPageRule* aRule)
  1.2702 +  : mRule(aRule)
  1.2703 +{
  1.2704 +}
  1.2705 +
  1.2706 +nsCSSPageStyleDeclaration::~nsCSSPageStyleDeclaration()
  1.2707 +{
  1.2708 +  NS_ASSERTION(!mRule, "DropReference not called.");
  1.2709 +}
  1.2710 +
  1.2711 +NS_IMPL_CYCLE_COLLECTING_ADDREF(nsCSSPageStyleDeclaration)
  1.2712 +NS_IMPL_CYCLE_COLLECTING_RELEASE(nsCSSPageStyleDeclaration)
  1.2713 +
  1.2714 +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(nsCSSPageStyleDeclaration)
  1.2715 +
  1.2716 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsCSSPageStyleDeclaration)
  1.2717 +  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
  1.2718 +NS_INTERFACE_MAP_END_INHERITING(nsDOMCSSDeclaration)
  1.2719 +
  1.2720 +css::Declaration*
  1.2721 +nsCSSPageStyleDeclaration::GetCSSDeclaration(bool aAllocate)
  1.2722 +{
  1.2723 +  if (mRule) {
  1.2724 +    return mRule->Declaration();
  1.2725 +  } else {
  1.2726 +    return nullptr;
  1.2727 +  }
  1.2728 +}
  1.2729 +
  1.2730 +void
  1.2731 +nsCSSPageStyleDeclaration::GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv)
  1.2732 +{
  1.2733 +  GetCSSParsingEnvironmentForRule(mRule, aCSSParseEnv);
  1.2734 +}
  1.2735 +
  1.2736 +NS_IMETHODIMP
  1.2737 +nsCSSPageStyleDeclaration::GetParentRule(nsIDOMCSSRule** aParent)
  1.2738 +{
  1.2739 +  NS_ENSURE_ARG_POINTER(aParent);
  1.2740 +
  1.2741 +  NS_IF_ADDREF(*aParent = mRule);
  1.2742 +  return NS_OK;
  1.2743 +}
  1.2744 +
  1.2745 +nsresult
  1.2746 +nsCSSPageStyleDeclaration::SetCSSDeclaration(css::Declaration* aDecl)
  1.2747 +{
  1.2748 +  NS_ABORT_IF_FALSE(aDecl, "must be non-null");
  1.2749 +  mRule->ChangeDeclaration(aDecl);
  1.2750 +  return NS_OK;
  1.2751 +}
  1.2752 +
  1.2753 +nsIDocument*
  1.2754 +nsCSSPageStyleDeclaration::DocToUpdate()
  1.2755 +{
  1.2756 +  return nullptr;
  1.2757 +}
  1.2758 +
  1.2759 +nsINode*
  1.2760 +nsCSSPageStyleDeclaration::GetParentObject()
  1.2761 +{
  1.2762 +  return mRule ? mRule->GetDocument() : nullptr;
  1.2763 +}
  1.2764 +
  1.2765 +// -------------------------------------------
  1.2766 +// nsCSSPageRule
  1.2767 +//
  1.2768 +
  1.2769 +nsCSSPageRule::nsCSSPageRule(const nsCSSPageRule& aCopy)
  1.2770 +  // copy everything except our reference count and mDOMDeclaration
  1.2771 +  : Rule(aCopy)
  1.2772 +  , mDeclaration(new css::Declaration(*aCopy.mDeclaration))
  1.2773 +{
  1.2774 +}
  1.2775 +
  1.2776 +nsCSSPageRule::~nsCSSPageRule()
  1.2777 +{
  1.2778 +  if (mDOMDeclaration) {
  1.2779 +    mDOMDeclaration->DropReference();
  1.2780 +  }
  1.2781 +}
  1.2782 +
  1.2783 +/* virtual */ already_AddRefed<css::Rule>
  1.2784 +nsCSSPageRule::Clone() const
  1.2785 +{
  1.2786 +  nsRefPtr<css::Rule> clone = new nsCSSPageRule(*this);
  1.2787 +  return clone.forget();
  1.2788 +}
  1.2789 +
  1.2790 +NS_IMPL_CYCLE_COLLECTING_ADDREF(nsCSSPageRule)
  1.2791 +NS_IMPL_CYCLE_COLLECTING_RELEASE(nsCSSPageRule)
  1.2792 +
  1.2793 +NS_IMPL_CYCLE_COLLECTION_CLASS(nsCSSPageRule)
  1.2794 +
  1.2795 +NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsCSSPageRule)
  1.2796 +  if (tmp->mDOMDeclaration) {
  1.2797 +    tmp->mDOMDeclaration->DropReference();
  1.2798 +    tmp->mDOMDeclaration = nullptr;
  1.2799 +  }
  1.2800 +NS_IMPL_CYCLE_COLLECTION_UNLINK_END
  1.2801 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsCSSPageRule)
  1.2802 +  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDOMDeclaration)
  1.2803 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
  1.2804 +
  1.2805 +DOMCI_DATA(CSSPageRule, nsCSSPageRule)
  1.2806 +
  1.2807 +// QueryInterface implementation for nsCSSPageRule
  1.2808 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsCSSPageRule)
  1.2809 +  NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
  1.2810 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSPageRule)
  1.2811 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
  1.2812 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
  1.2813 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSPageRule)
  1.2814 +NS_INTERFACE_MAP_END
  1.2815 +
  1.2816 +IMPL_STYLE_RULE_INHERIT_GET_DOM_RULE_WEAK(nsCSSPageRule, Rule)
  1.2817 +
  1.2818 +#ifdef DEBUG
  1.2819 +void
  1.2820 +nsCSSPageRule::List(FILE* out, int32_t aIndent) const
  1.2821 +{
  1.2822 +  for (int32_t indent = aIndent; --indent >= 0; ) fputs("  ", out);
  1.2823 +
  1.2824 +  fputs("@page ", out);
  1.2825 +  mDeclaration->List(out, aIndent);
  1.2826 +  fputs("\n", out);
  1.2827 +}
  1.2828 +#endif
  1.2829 +
  1.2830 +/* virtual */ int32_t
  1.2831 +nsCSSPageRule::GetType() const
  1.2832 +{
  1.2833 +  return Rule::PAGE_RULE;
  1.2834 +}
  1.2835 +
  1.2836 +NS_IMETHODIMP
  1.2837 +nsCSSPageRule::GetType(uint16_t* aType)
  1.2838 +{
  1.2839 +  *aType = nsIDOMCSSRule::PAGE_RULE;
  1.2840 +  return NS_OK;
  1.2841 +}
  1.2842 +
  1.2843 +NS_IMETHODIMP
  1.2844 +nsCSSPageRule::GetCssText(nsAString& aCssText)
  1.2845 +{
  1.2846 +  aCssText.AppendLiteral("@page { ");
  1.2847 +  nsAutoString tmp;
  1.2848 +  mDeclaration->ToString(tmp);
  1.2849 +  aCssText.Append(tmp);
  1.2850 +  aCssText.AppendLiteral(" }");
  1.2851 +  return NS_OK;
  1.2852 +}
  1.2853 +
  1.2854 +NS_IMETHODIMP
  1.2855 +nsCSSPageRule::SetCssText(const nsAString& aCssText)
  1.2856 +{
  1.2857 +  // FIXME: implement???
  1.2858 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.2859 +}
  1.2860 +
  1.2861 +NS_IMETHODIMP
  1.2862 +nsCSSPageRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
  1.2863 +{
  1.2864 +  return Rule::GetParentStyleSheet(aSheet);
  1.2865 +}
  1.2866 +
  1.2867 +NS_IMETHODIMP
  1.2868 +nsCSSPageRule::GetParentRule(nsIDOMCSSRule** aParentRule)
  1.2869 +{
  1.2870 +  return Rule::GetParentRule(aParentRule);
  1.2871 +}
  1.2872 +
  1.2873 +css::ImportantRule*
  1.2874 +nsCSSPageRule::GetImportantRule()
  1.2875 +{
  1.2876 +  if (!mDeclaration->HasImportantData()) {
  1.2877 +    return nullptr;
  1.2878 +  }
  1.2879 +  if (!mImportantRule) {
  1.2880 +    mImportantRule = new css::ImportantRule(mDeclaration);
  1.2881 +  }
  1.2882 +  return mImportantRule;
  1.2883 +}
  1.2884 +
  1.2885 +/* virtual */ void
  1.2886 +nsCSSPageRule::MapRuleInfoInto(nsRuleData* aRuleData)
  1.2887 +{
  1.2888 +  mDeclaration->MapNormalRuleInfoInto(aRuleData);
  1.2889 +}
  1.2890 +
  1.2891 +NS_IMETHODIMP
  1.2892 +nsCSSPageRule::GetStyle(nsIDOMCSSStyleDeclaration** aStyle)
  1.2893 +{
  1.2894 +  if (!mDOMDeclaration) {
  1.2895 +    mDOMDeclaration = new nsCSSPageStyleDeclaration(this);
  1.2896 +  }
  1.2897 +  NS_ADDREF(*aStyle = mDOMDeclaration);
  1.2898 +  return NS_OK;
  1.2899 +}
  1.2900 +
  1.2901 +void
  1.2902 +nsCSSPageRule::ChangeDeclaration(css::Declaration* aDeclaration)
  1.2903 +{
  1.2904 +  mImportantRule = nullptr;
  1.2905 +  // Be careful to not assign to an nsAutoPtr if we would be assigning
  1.2906 +  // the thing it already holds.
  1.2907 +  if (aDeclaration != mDeclaration) {
  1.2908 +    mDeclaration = aDeclaration;
  1.2909 +  }
  1.2910 +
  1.2911 +  nsCSSStyleSheet* sheet = GetStyleSheet();
  1.2912 +  if (sheet) {
  1.2913 +    sheet->SetModifiedByChildRule();
  1.2914 +  }
  1.2915 +}
  1.2916 +
  1.2917 +/* virtual */ size_t
  1.2918 +nsCSSPageRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
  1.2919 +{
  1.2920 +  return aMallocSizeOf(this);
  1.2921 +}
  1.2922 +
  1.2923 +namespace mozilla {
  1.2924 +
  1.2925 +CSSSupportsRule::CSSSupportsRule(bool aConditionMet,
  1.2926 +                                 const nsString& aCondition)
  1.2927 +  : mUseGroup(aConditionMet),
  1.2928 +    mCondition(aCondition)
  1.2929 +{
  1.2930 +}
  1.2931 +
  1.2932 +CSSSupportsRule::CSSSupportsRule(const CSSSupportsRule& aCopy)
  1.2933 +  : css::GroupRule(aCopy),
  1.2934 +    mUseGroup(aCopy.mUseGroup),
  1.2935 +    mCondition(aCopy.mCondition)
  1.2936 +{
  1.2937 +}
  1.2938 +
  1.2939 +#ifdef DEBUG
  1.2940 +/* virtual */ void
  1.2941 +CSSSupportsRule::List(FILE* out, int32_t aIndent) const
  1.2942 +{
  1.2943 +  for (int32_t indent = aIndent; --indent >= 0; ) fputs("  ", out);
  1.2944 +
  1.2945 +  fputs("@supports ", out);
  1.2946 +  fputs(NS_ConvertUTF16toUTF8(mCondition).get(), out);
  1.2947 +  css::GroupRule::List(out, aIndent);
  1.2948 +}
  1.2949 +#endif
  1.2950 +
  1.2951 +/* virtual */ int32_t
  1.2952 +CSSSupportsRule::GetType() const
  1.2953 +{
  1.2954 +  return Rule::SUPPORTS_RULE;
  1.2955 +}
  1.2956 +
  1.2957 +/* virtual */ already_AddRefed<mozilla::css::Rule>
  1.2958 +CSSSupportsRule::Clone() const
  1.2959 +{
  1.2960 +  nsRefPtr<css::Rule> clone = new CSSSupportsRule(*this);
  1.2961 +  return clone.forget();
  1.2962 +}
  1.2963 +
  1.2964 +/* virtual */ bool
  1.2965 +CSSSupportsRule::UseForPresentation(nsPresContext* aPresContext,
  1.2966 +                                   nsMediaQueryResultCacheKey& aKey)
  1.2967 +{
  1.2968 +  return mUseGroup;
  1.2969 +}
  1.2970 +
  1.2971 +NS_IMPL_ADDREF_INHERITED(CSSSupportsRule, css::GroupRule)
  1.2972 +NS_IMPL_RELEASE_INHERITED(CSSSupportsRule, css::GroupRule)
  1.2973 +
  1.2974 +// QueryInterface implementation for CSSSupportsRule
  1.2975 +NS_INTERFACE_MAP_BEGIN(CSSSupportsRule)
  1.2976 +  NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
  1.2977 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
  1.2978 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSGroupingRule)
  1.2979 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSConditionRule)
  1.2980 +  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSSupportsRule)
  1.2981 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
  1.2982 +  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSSupportsRule)
  1.2983 +NS_INTERFACE_MAP_END_INHERITING(GroupRule)
  1.2984 +
  1.2985 +// nsIDOMCSSRule methods
  1.2986 +NS_IMETHODIMP
  1.2987 +CSSSupportsRule::GetType(uint16_t* aType)
  1.2988 +{
  1.2989 +  *aType = nsIDOMCSSRule::SUPPORTS_RULE;
  1.2990 +  return NS_OK;
  1.2991 +}
  1.2992 +
  1.2993 +NS_IMETHODIMP
  1.2994 +CSSSupportsRule::GetCssText(nsAString& aCssText)
  1.2995 +{
  1.2996 +  aCssText.AssignLiteral("@supports ");
  1.2997 +  aCssText.Append(mCondition);
  1.2998 +  css::GroupRule::AppendRulesToCssText(aCssText);
  1.2999 +  return NS_OK;
  1.3000 +}
  1.3001 +
  1.3002 +NS_IMETHODIMP
  1.3003 +CSSSupportsRule::SetCssText(const nsAString& aCssText)
  1.3004 +{
  1.3005 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.3006 +}
  1.3007 +
  1.3008 +NS_IMETHODIMP
  1.3009 +CSSSupportsRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
  1.3010 +{
  1.3011 +  return css::GroupRule::GetParentStyleSheet(aSheet);
  1.3012 +}
  1.3013 +
  1.3014 +NS_IMETHODIMP
  1.3015 +CSSSupportsRule::GetParentRule(nsIDOMCSSRule** aParentRule)
  1.3016 +{
  1.3017 +  return css::GroupRule::GetParentRule(aParentRule);
  1.3018 +}
  1.3019 +
  1.3020 +// nsIDOMCSSGroupingRule methods
  1.3021 +NS_IMETHODIMP
  1.3022 +CSSSupportsRule::GetCssRules(nsIDOMCSSRuleList* *aRuleList)
  1.3023 +{
  1.3024 +  return css::GroupRule::GetCssRules(aRuleList);
  1.3025 +}
  1.3026 +
  1.3027 +NS_IMETHODIMP
  1.3028 +CSSSupportsRule::InsertRule(const nsAString & aRule, uint32_t aIndex, uint32_t* _retval)
  1.3029 +{
  1.3030 +  return css::GroupRule::InsertRule(aRule, aIndex, _retval);
  1.3031 +}
  1.3032 +
  1.3033 +NS_IMETHODIMP
  1.3034 +CSSSupportsRule::DeleteRule(uint32_t aIndex)
  1.3035 +{
  1.3036 +  return css::GroupRule::DeleteRule(aIndex);
  1.3037 +}
  1.3038 +
  1.3039 +// nsIDOMCSSConditionRule methods
  1.3040 +NS_IMETHODIMP
  1.3041 +CSSSupportsRule::GetConditionText(nsAString& aConditionText)
  1.3042 +{
  1.3043 +  aConditionText.Assign(mCondition);
  1.3044 +  return NS_OK;
  1.3045 +}
  1.3046 +
  1.3047 +NS_IMETHODIMP
  1.3048 +CSSSupportsRule::SetConditionText(const nsAString& aConditionText)
  1.3049 +{
  1.3050 +  return NS_ERROR_NOT_IMPLEMENTED;
  1.3051 +}
  1.3052 +
  1.3053 +/* virtual */ size_t
  1.3054 +CSSSupportsRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
  1.3055 +{
  1.3056 +  size_t n = aMallocSizeOf(this);
  1.3057 +  n += css::GroupRule::SizeOfExcludingThis(aMallocSizeOf);
  1.3058 +  n += mCondition.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
  1.3059 +  return n;
  1.3060 +}
  1.3061 +
  1.3062 +} // namespace mozilla
  1.3063 +
  1.3064 +// Must be outside namespace
  1.3065 +DOMCI_DATA(CSSSupportsRule, mozilla::CSSSupportsRule)

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