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comparison: layout/style/nsCSSRules.h

layout/style/nsCSSRules.h

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1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 // vim:cindent:ts=2:et:sw=2:
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 /* rules in a CSS stylesheet other than style rules (e.g., @import rules) */
8
9 #ifndef nsCSSRules_h_
10 #define nsCSSRules_h_
11
12 #include "mozilla/Attributes.h"
13
14 #include "mozilla/MemoryReporting.h"
15 #include "mozilla/css/GroupRule.h"
16 #include "mozilla/Preferences.h"
17 #include "nsIDOMCSSConditionRule.h"
18 #include "nsIDOMCSSFontFaceRule.h"
19 #include "nsIDOMCSSFontFeatureValuesRule.h"
20 #include "nsIDOMCSSGroupingRule.h"
21 #include "nsIDOMCSSMediaRule.h"
22 #include "nsIDOMCSSMozDocumentRule.h"
23 #include "nsIDOMCSSSupportsRule.h"
24 #include "nsIDOMMozCSSKeyframeRule.h"
25 #include "nsIDOMMozCSSKeyframesRule.h"
26 #include "nsAutoPtr.h"
27 #include "nsCSSProperty.h"
28 #include "nsCSSValue.h"
29 #include "nsIDOMCSSCharsetRule.h"
30 #include "nsTArray.h"
31 #include "nsDOMCSSDeclaration.h"
32 #include "Declaration.h"
33 #include "nsIDOMCSSPageRule.h"
34 #include "StyleRule.h"
35 #include "gfxFontFeatures.h"
36
37 class nsMediaList;
38
39 namespace mozilla {
40
41 class ErrorResult;
42
43 namespace css {
44
45 class MediaRule MOZ_FINAL : public GroupRule,
46 public nsIDOMCSSMediaRule
47 {
48 public:
49 MediaRule();
50 private:
51 MediaRule(const MediaRule& aCopy);
52 ~MediaRule();
53 public:
54
55 NS_DECL_ISUPPORTS_INHERITED
56
57 // nsIStyleRule methods
58 #ifdef DEBUG
59 virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
60 #endif
61
62 // Rule methods
63 virtual void SetStyleSheet(nsCSSStyleSheet* aSheet); //override GroupRule
64 virtual int32_t GetType() const;
65 virtual already_AddRefed<Rule> Clone() const;
66 virtual nsIDOMCSSRule* GetDOMRule()
67 {
68 return this;
69 }
70 virtual nsIDOMCSSRule* GetExistingDOMRule()
71 {
72 return this;
73 }
74
75 // nsIDOMCSSRule interface
76 NS_DECL_NSIDOMCSSRULE
77
78 // nsIDOMCSSGroupingRule interface
79 NS_DECL_NSIDOMCSSGROUPINGRULE
80
81 // nsIDOMCSSConditionRule interface
82 NS_DECL_NSIDOMCSSCONDITIONRULE
83
84 // nsIDOMCSSMediaRule interface
85 NS_DECL_NSIDOMCSSMEDIARULE
86
87 // rest of GroupRule
88 virtual bool UseForPresentation(nsPresContext* aPresContext,
89 nsMediaQueryResultCacheKey& aKey);
90
91 // @media rule methods
92 nsresult SetMedia(nsMediaList* aMedia);
93
94 virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf)
95 const MOZ_MUST_OVERRIDE;
96
97 protected:
98 void AppendConditionText(nsAString& aOutput);
99
100 nsRefPtr<nsMediaList> mMedia;
101 };
102
103 class DocumentRule MOZ_FINAL : public GroupRule,
104 public nsIDOMCSSMozDocumentRule
105 {
106 public:
107 DocumentRule();
108 private:
109 DocumentRule(const DocumentRule& aCopy);
110 ~DocumentRule();
111 public:
112
113 NS_DECL_ISUPPORTS_INHERITED
114
115 // nsIStyleRule methods
116 #ifdef DEBUG
117 virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
118 #endif
119
120 // Rule methods
121 virtual int32_t GetType() const;
122 virtual already_AddRefed<Rule> Clone() const;
123 virtual nsIDOMCSSRule* GetDOMRule()
124 {
125 return this;
126 }
127 virtual nsIDOMCSSRule* GetExistingDOMRule()
128 {
129 return this;
130 }
131
132 // nsIDOMCSSRule interface
133 NS_DECL_NSIDOMCSSRULE
134
135 // nsIDOMCSSGroupingRule interface
136 NS_DECL_NSIDOMCSSGROUPINGRULE
137
138 // nsIDOMCSSConditionRule interface
139 NS_DECL_NSIDOMCSSCONDITIONRULE
140
141 // nsIDOMCSSMozDocumentRule interface
142 NS_DECL_NSIDOMCSSMOZDOCUMENTRULE
143
144 // rest of GroupRule
145 virtual bool UseForPresentation(nsPresContext* aPresContext,
146 nsMediaQueryResultCacheKey& aKey);
147
148 enum Function {
149 eURL,
150 eURLPrefix,
151 eDomain,
152 eRegExp
153 };
154
155 struct URL {
156 Function func;
157 nsCString url;
158 URL *next;
159
160 URL() : next(nullptr) {}
161 URL(const URL& aOther)
162 : func(aOther.func)
163 , url(aOther.url)
164 , next(aOther.next ? new URL(*aOther.next) : nullptr)
165 {
166 }
167 ~URL();
168 };
169
170 void SetURLs(URL *aURLs) { mURLs = aURLs; }
171
172 virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf)
173 const MOZ_MUST_OVERRIDE;
174
175 protected:
176 void AppendConditionText(nsAString& aOutput);
177
178 nsAutoPtr<URL> mURLs; // linked list of |struct URL| above.
179 };
180
181 } // namespace css
182 } // namespace mozilla
183
184 // A nsCSSFontFaceStyleDecl is always embedded in a nsCSSFontFaceRule.
185 class nsCSSFontFaceRule;
186 class nsCSSFontFaceStyleDecl : public nsICSSDeclaration
187 {
188 public:
189 NS_DECL_ISUPPORTS_INHERITED
190 NS_DECL_NSIDOMCSSSTYLEDECLARATION_HELPER
191 NS_DECL_NSICSSDECLARATION
192 virtual already_AddRefed<mozilla::dom::CSSValue>
193 GetPropertyCSSValue(const nsAString& aProp, mozilla::ErrorResult& aRv)
194 MOZ_OVERRIDE;
195 using nsICSSDeclaration::GetPropertyCSSValue;
196
197 nsCSSFontFaceStyleDecl()
198 {
199 SetIsDOMBinding();
200 }
201
202 virtual nsINode *GetParentObject() MOZ_OVERRIDE;
203 virtual void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aPropName) MOZ_OVERRIDE;
204
205 nsresult GetPropertyValue(nsCSSFontDesc aFontDescID,
206 nsAString & aResult) const;
207
208 virtual JSObject* WrapObject(JSContext *cx) MOZ_OVERRIDE;
209
210 protected:
211 friend class nsCSSFontFaceRule;
212 #define CSS_FONT_DESC(name_, method_) nsCSSValue m##method_;
213 #include "nsCSSFontDescList.h"
214 #undef CSS_FONT_DESC
215
216 static nsCSSValue nsCSSFontFaceStyleDecl::* const Fields[];
217 inline nsCSSFontFaceRule* ContainingRule();
218 inline const nsCSSFontFaceRule* ContainingRule() const;
219
220 private:
221 // NOT TO BE IMPLEMENTED
222 // This object cannot be allocated on its own, only as part of
223 // nsCSSFontFaceRule.
224 void* operator new(size_t size) CPP_THROW_NEW;
225 };
226
227 class nsCSSFontFaceRule MOZ_FINAL : public mozilla::css::Rule,
228 public nsIDOMCSSFontFaceRule
229 {
230 public:
231 nsCSSFontFaceRule() {}
232
233 nsCSSFontFaceRule(const nsCSSFontFaceRule& aCopy)
234 // copy everything except our reference count
235 : mozilla::css::Rule(aCopy), mDecl(aCopy.mDecl) {}
236
237 NS_DECL_CYCLE_COLLECTING_ISUPPORTS
238 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsCSSFontFaceRule,
239 mozilla::css::Rule)
240
241 // nsIStyleRule methods
242 #ifdef DEBUG
243 virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
244 #endif
245
246 // Rule methods
247 DECL_STYLE_RULE_INHERIT
248
249 virtual int32_t GetType() const MOZ_OVERRIDE;
250 virtual already_AddRefed<mozilla::css::Rule> Clone() const;
251
252 // nsIDOMCSSRule interface
253 NS_DECL_NSIDOMCSSRULE
254
255 // nsIDOMCSSFontFaceRule interface
256 NS_DECL_NSIDOMCSSFONTFACERULE
257
258 void SetDesc(nsCSSFontDesc aDescID, nsCSSValue const & aValue);
259 void GetDesc(nsCSSFontDesc aDescID, nsCSSValue & aValue);
260
261 virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
262
263 protected:
264 friend class nsCSSFontFaceStyleDecl;
265 nsCSSFontFaceStyleDecl mDecl;
266 };
267
268 // nsFontFaceRuleContainer - used for associating sheet type with
269 // specific @font-face rules
270 struct nsFontFaceRuleContainer {
271 nsRefPtr<nsCSSFontFaceRule> mRule;
272 uint8_t mSheetType;
273 };
274
275 inline nsCSSFontFaceRule*
276 nsCSSFontFaceStyleDecl::ContainingRule()
277 {
278 return reinterpret_cast<nsCSSFontFaceRule*>
279 (reinterpret_cast<char*>(this) - offsetof(nsCSSFontFaceRule, mDecl));
280 }
281
282 inline const nsCSSFontFaceRule*
283 nsCSSFontFaceStyleDecl::ContainingRule() const
284 {
285 return reinterpret_cast<const nsCSSFontFaceRule*>
286 (reinterpret_cast<const char*>(this) - offsetof(nsCSSFontFaceRule, mDecl));
287 }
288
289 class nsCSSFontFeatureValuesRule MOZ_FINAL :
290 public mozilla::css::Rule,
291 public nsIDOMCSSFontFeatureValuesRule
292 {
293 public:
294 nsCSSFontFeatureValuesRule() {}
295
296 nsCSSFontFeatureValuesRule(const nsCSSFontFeatureValuesRule& aCopy)
297 // copy everything except our reference count
298 : mozilla::css::Rule(aCopy),
299 mFamilyList(aCopy.mFamilyList),
300 mFeatureValues(aCopy.mFeatureValues) {}
301
302 NS_DECL_ISUPPORTS
303
304 // nsIStyleRule methods
305 #ifdef DEBUG
306 virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
307 #endif
308
309 // Rule methods
310 DECL_STYLE_RULE_INHERIT
311
312 virtual int32_t GetType() const MOZ_OVERRIDE;
313 virtual already_AddRefed<mozilla::css::Rule> Clone() const MOZ_OVERRIDE;
314
315 // nsIDOMCSSRule interface
316 NS_DECL_NSIDOMCSSRULE
317
318 // nsIDOMCSSFontFaceRule interface
319 NS_DECL_NSIDOMCSSFONTFEATUREVALUESRULE
320
321 const nsTArray<nsString>& GetFamilyList() { return mFamilyList; }
322 void SetFamilyList(const nsAString& aFamilyList, bool& aContainsGeneric);
323
324 void AddValueList(int32_t aVariantAlternate,
325 nsTArray<gfxFontFeatureValueSet::ValueList>& aValueList);
326
327 const nsTArray<gfxFontFeatureValueSet::FeatureValues>& GetFeatureValues()
328 {
329 return mFeatureValues;
330 }
331
332 virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
333
334 static bool PrefEnabled()
335 {
336 // font-variant-alternates enabled ==> layout.css.font-features.enabled is true
337 bool fontFeaturesEnabled =
338 nsCSSProps::IsEnabled(eCSSProperty_font_variant_alternates);
339
340 return fontFeaturesEnabled;
341 }
342
343 protected:
344 nsTArray<nsString> mFamilyList;
345 nsTArray<gfxFontFeatureValueSet::FeatureValues> mFeatureValues;
346 };
347
348 namespace mozilla {
349 namespace css {
350
351 class CharsetRule MOZ_FINAL : public Rule,
352 public nsIDOMCSSCharsetRule
353 {
354 public:
355 CharsetRule(const nsAString& aEncoding);
356 private:
357 // For |Clone|
358 CharsetRule(const CharsetRule& aCopy);
359 ~CharsetRule() {}
360
361 public:
362 NS_DECL_ISUPPORTS
363
364 DECL_STYLE_RULE_INHERIT
365
366 // nsIStyleRule methods
367 #ifdef DEBUG
368 virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
369 #endif
370
371 // Rule methods
372 virtual int32_t GetType() const;
373 virtual already_AddRefed<Rule> Clone() const;
374
375 // nsIDOMCSSRule interface
376 NS_DECL_NSIDOMCSSRULE
377
378 // nsIDOMCSSCharsetRule methods
379 NS_IMETHOD GetEncoding(nsAString& aEncoding) MOZ_OVERRIDE;
380 NS_IMETHOD SetEncoding(const nsAString& aEncoding) MOZ_OVERRIDE;
381
382 virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
383
384 private:
385 nsString mEncoding;
386 };
387
388 } // namespace css
389 } // namespace mozilla
390
391 class nsCSSKeyframeRule;
392
393 class nsCSSKeyframeStyleDeclaration MOZ_FINAL : public nsDOMCSSDeclaration
394 {
395 public:
396 nsCSSKeyframeStyleDeclaration(nsCSSKeyframeRule *aRule);
397 virtual ~nsCSSKeyframeStyleDeclaration();
398
399 NS_IMETHOD GetParentRule(nsIDOMCSSRule **aParent) MOZ_OVERRIDE;
400 void DropReference() { mRule = nullptr; }
401 virtual mozilla::css::Declaration* GetCSSDeclaration(bool aAllocate) MOZ_OVERRIDE;
402 virtual nsresult SetCSSDeclaration(mozilla::css::Declaration* aDecl) MOZ_OVERRIDE;
403 virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) MOZ_OVERRIDE;
404 virtual nsIDocument* DocToUpdate() MOZ_OVERRIDE;
405
406 NS_DECL_CYCLE_COLLECTING_ISUPPORTS
407 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsCSSKeyframeStyleDeclaration,
408 nsICSSDeclaration)
409
410 virtual nsINode* GetParentObject() MOZ_OVERRIDE;
411
412 protected:
413 // This reference is not reference-counted. The rule object tells us
414 // when it's about to go away.
415 nsCSSKeyframeRule *mRule;
416 };
417
418 class nsCSSKeyframeRule MOZ_FINAL : public mozilla::css::Rule,
419 public nsIDOMMozCSSKeyframeRule
420 {
421 public:
422 // WARNING: Steals the contents of aKeys *and* aDeclaration
423 nsCSSKeyframeRule(InfallibleTArray<float>& aKeys,
424 nsAutoPtr<mozilla::css::Declaration> aDeclaration)
425 : mDeclaration(aDeclaration)
426 {
427 mKeys.SwapElements(aKeys);
428 }
429 private:
430 nsCSSKeyframeRule(const nsCSSKeyframeRule& aCopy);
431 ~nsCSSKeyframeRule();
432 public:
433 NS_DECL_CYCLE_COLLECTING_ISUPPORTS
434 NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsCSSKeyframeRule, nsIStyleRule)
435
436 // nsIStyleRule methods
437 #ifdef DEBUG
438 virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
439 #endif
440
441 // Rule methods
442 DECL_STYLE_RULE_INHERIT
443 virtual int32_t GetType() const MOZ_OVERRIDE;
444 virtual already_AddRefed<mozilla::css::Rule> Clone() const;
445
446 // nsIDOMCSSRule interface
447 NS_DECL_NSIDOMCSSRULE
448
449 // nsIDOMMozCSSKeyframeRule interface
450 NS_DECL_NSIDOMMOZCSSKEYFRAMERULE
451
452 const nsTArray<float>& GetKeys() const { return mKeys; }
453 mozilla::css::Declaration* Declaration() { return mDeclaration; }
454
455 void ChangeDeclaration(mozilla::css::Declaration* aDeclaration);
456
457 virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
458
459 void DoGetKeyText(nsAString &aKeyText) const;
460
461 private:
462 nsTArray<float> mKeys;
463 nsAutoPtr<mozilla::css::Declaration> mDeclaration;
464 // lazily created when needed:
465 nsRefPtr<nsCSSKeyframeStyleDeclaration> mDOMDeclaration;
466 };
467
468 class nsCSSKeyframesRule MOZ_FINAL : public mozilla::css::GroupRule,
469 public nsIDOMMozCSSKeyframesRule
470 {
471 public:
472 nsCSSKeyframesRule(const nsSubstring& aName)
473 : mName(aName)
474 {
475 }
476 private:
477 nsCSSKeyframesRule(const nsCSSKeyframesRule& aCopy);
478 ~nsCSSKeyframesRule();
479 public:
480 NS_DECL_ISUPPORTS_INHERITED
481
482 // nsIStyleRule methods
483 #ifdef DEBUG
484 virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
485 #endif
486
487 // Rule methods
488 virtual int32_t GetType() const;
489 virtual already_AddRefed<mozilla::css::Rule> Clone() const;
490 virtual nsIDOMCSSRule* GetDOMRule()
491 {
492 return this;
493 }
494 virtual nsIDOMCSSRule* GetExistingDOMRule()
495 {
496 return this;
497 }
498
499 // nsIDOMCSSRule interface
500 NS_DECL_NSIDOMCSSRULE
501
502 // nsIDOMMozCSSKeyframesRule interface
503 NS_DECL_NSIDOMMOZCSSKEYFRAMESRULE
504
505 // rest of GroupRule
506 virtual bool UseForPresentation(nsPresContext* aPresContext,
507 nsMediaQueryResultCacheKey& aKey) MOZ_OVERRIDE;
508
509 const nsString& GetName() { return mName; }
510
511 virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
512
513 private:
514 uint32_t FindRuleIndexForKey(const nsAString& aKey);
515
516 nsString mName;
517 };
518
519 class nsCSSPageRule;
520
521 class nsCSSPageStyleDeclaration MOZ_FINAL : public nsDOMCSSDeclaration
522 {
523 public:
524 nsCSSPageStyleDeclaration(nsCSSPageRule *aRule);
525 virtual ~nsCSSPageStyleDeclaration();
526
527 NS_IMETHOD GetParentRule(nsIDOMCSSRule **aParent) MOZ_OVERRIDE;
528 void DropReference() { mRule = nullptr; }
529 virtual mozilla::css::Declaration* GetCSSDeclaration(bool aAllocate) MOZ_OVERRIDE;
530 virtual nsresult SetCSSDeclaration(mozilla::css::Declaration* aDecl) MOZ_OVERRIDE;
531 virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) MOZ_OVERRIDE;
532 virtual nsIDocument* DocToUpdate() MOZ_OVERRIDE;
533
534 NS_DECL_CYCLE_COLLECTING_ISUPPORTS
535 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsCSSPageStyleDeclaration,
536 nsICSSDeclaration)
537
538 virtual nsINode *GetParentObject() MOZ_OVERRIDE;
539
540 protected:
541 // This reference is not reference-counted. The rule object tells us
542 // when it's about to go away.
543 nsCSSPageRule *mRule;
544 };
545
546 class nsCSSPageRule MOZ_FINAL : public mozilla::css::Rule,
547 public nsIDOMCSSPageRule
548 {
549 public:
550 // WARNING: Steals the contents of aDeclaration
551 nsCSSPageRule(nsAutoPtr<mozilla::css::Declaration> aDeclaration)
552 : mDeclaration(aDeclaration),
553 mImportantRule(nullptr)
554 {
555 }
556 private:
557 nsCSSPageRule(const nsCSSPageRule& aCopy);
558 ~nsCSSPageRule();
559 public:
560 NS_DECL_CYCLE_COLLECTING_ISUPPORTS
561 NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsCSSPageRule, nsIDOMCSSPageRule)
562
563 // nsIStyleRule methods
564 #ifdef DEBUG
565 virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
566 #endif
567
568 // Rule methods
569 DECL_STYLE_RULE_INHERIT
570 virtual int32_t GetType() const MOZ_OVERRIDE;
571 virtual already_AddRefed<mozilla::css::Rule> Clone() const;
572
573 // nsIDOMCSSRule interface
574 NS_DECL_NSIDOMCSSRULE
575
576 // nsIDOMCSSPageRule interface
577 NS_DECL_NSIDOMCSSPAGERULE
578
579 mozilla::css::Declaration* Declaration() { return mDeclaration; }
580
581 void ChangeDeclaration(mozilla::css::Declaration* aDeclaration);
582
583 mozilla::css::ImportantRule* GetImportantRule();
584
585 virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
586 private:
587 nsAutoPtr<mozilla::css::Declaration> mDeclaration;
588 // lazily created when needed:
589 nsRefPtr<nsCSSPageStyleDeclaration> mDOMDeclaration;
590 nsRefPtr<mozilla::css::ImportantRule> mImportantRule;
591 };
592
593 namespace mozilla {
594
595 class CSSSupportsRule : public css::GroupRule,
596 public nsIDOMCSSSupportsRule
597 {
598 public:
599 CSSSupportsRule(bool aConditionMet, const nsString& aCondition);
600 CSSSupportsRule(const CSSSupportsRule& aCopy);
601
602 // nsIStyleRule methods
603 #ifdef DEBUG
604 virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
605 #endif
606
607 // Rule methods
608 virtual int32_t GetType() const;
609 virtual already_AddRefed<mozilla::css::Rule> Clone() const;
610 virtual bool UseForPresentation(nsPresContext* aPresContext,
611 nsMediaQueryResultCacheKey& aKey);
612 virtual nsIDOMCSSRule* GetDOMRule()
613 {
614 return this;
615 }
616 virtual nsIDOMCSSRule* GetExistingDOMRule()
617 {
618 return this;
619 }
620
621 NS_DECL_ISUPPORTS_INHERITED
622
623 // nsIDOMCSSRule interface
624 NS_DECL_NSIDOMCSSRULE
625
626 // nsIDOMCSSGroupingRule interface
627 NS_DECL_NSIDOMCSSGROUPINGRULE
628
629 // nsIDOMCSSConditionRule interface
630 NS_DECL_NSIDOMCSSCONDITIONRULE
631
632 // nsIDOMCSSSupportsRule interface
633 NS_DECL_NSIDOMCSSSUPPORTSRULE
634
635 virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
636
637 static bool PrefEnabled()
638 {
639 return Preferences::GetBool("layout.css.supports-rule.enabled");
640 }
641
642 protected:
643 bool mUseGroup;
644 nsString mCondition;
645 };
646
647 } // namespace mozilla
648
649 #endif /* !defined(nsCSSRules_h_) */

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