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layout/style/nsDOMCSSDeclaration.h@7e26c7da4463 (annotated)

layout/style/nsDOMCSSDeclaration.h

Wed, 31 Dec 2014 06:55:50 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:55:50 +0100
changeset 2
7e26c7da4463
permissions
-rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 /* base class for DOM objects for element.style and cssStyleRule.style */
michael@0 7
michael@0 8 #ifndef nsDOMCSSDeclaration_h___
michael@0 9 #define nsDOMCSSDeclaration_h___
michael@0 10
michael@0 11 #include "nsICSSDeclaration.h"
michael@0 12
michael@0 13 #include "mozilla/Attributes.h"
michael@0 14 #include "nsCOMPtr.h"
michael@0 15
michael@0 16 class nsIPrincipal;
michael@0 17 class nsIDocument;
michael@0 18 struct JSContext;
michael@0 19 class JSObject;
michael@0 20
michael@0 21 namespace mozilla {
michael@0 22 namespace css {
michael@0 23 class Declaration;
michael@0 24 class Loader;
michael@0 25 class Rule;
michael@0 26 }
michael@0 27 }
michael@0 28
michael@0 29 class nsDOMCSSDeclaration : public nsICSSDeclaration
michael@0 30 {
michael@0 31 public:
michael@0 32 // Only implement QueryInterface; subclasses have the responsibility
michael@0 33 // of implementing AddRef/Release.
michael@0 34 NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr) MOZ_OVERRIDE;
michael@0 35
michael@0 36 // Declare addref and release so they can be called on us, but don't
michael@0 37 // implement them. Our subclasses must handle their own
michael@0 38 // refcounting.
michael@0 39 NS_IMETHOD_(MozExternalRefCountType) AddRef() MOZ_OVERRIDE = 0;
michael@0 40 NS_IMETHOD_(MozExternalRefCountType) Release() MOZ_OVERRIDE = 0;
michael@0 41
michael@0 42 NS_DECL_NSICSSDECLARATION
michael@0 43 using nsICSSDeclaration::GetLength;
michael@0 44
michael@0 45 // Require subclasses to implement |GetParentRule|.
michael@0 46 //NS_DECL_NSIDOMCSSSTYLEDECLARATION
michael@0 47 NS_IMETHOD GetCssText(nsAString & aCssText) MOZ_OVERRIDE;
michael@0 48 NS_IMETHOD SetCssText(const nsAString & aCssText) MOZ_OVERRIDE;
michael@0 49 NS_IMETHOD GetPropertyValue(const nsAString & propertyName,
michael@0 50 nsAString & _retval) MOZ_OVERRIDE;
michael@0 51 virtual already_AddRefed<mozilla::dom::CSSValue>
michael@0 52 GetPropertyCSSValue(const nsAString & propertyName,
michael@0 53 mozilla::ErrorResult& aRv) MOZ_OVERRIDE;
michael@0 54 using nsICSSDeclaration::GetPropertyCSSValue;
michael@0 55 NS_IMETHOD RemoveProperty(const nsAString & propertyName,
michael@0 56 nsAString & _retval) MOZ_OVERRIDE;
michael@0 57 NS_IMETHOD GetPropertyPriority(const nsAString & propertyName,
michael@0 58 nsAString & _retval) MOZ_OVERRIDE;
michael@0 59 NS_IMETHOD SetProperty(const nsAString & propertyName,
michael@0 60 const nsAString & value, const nsAString & priority) MOZ_OVERRIDE;
michael@0 61 NS_IMETHOD GetLength(uint32_t *aLength) MOZ_OVERRIDE;
michael@0 62 NS_IMETHOD GetParentRule(nsIDOMCSSRule * *aParentRule) MOZ_OVERRIDE = 0;
michael@0 63
michael@0 64 // WebIDL interface for CSS2Properties
michael@0 65 #define CSS_PROP_PUBLIC_OR_PRIVATE(publicname_, privatename_) publicname_
michael@0 66 #define CSS_PROP(name_, id_, method_, flags_, pref_, parsevariant_, \
michael@0 67 kwtable_, stylestruct_, stylestructoffset_, animtype_) \
michael@0 68 void \
michael@0 69 Get##method_(nsAString& aValue, mozilla::ErrorResult& rv) \
michael@0 70 { \
michael@0 71 rv = GetPropertyValue(eCSSProperty_##id_, aValue); \
michael@0 72 } \
michael@0 73 \
michael@0 74 void \
michael@0 75 Set##method_(const nsAString& aValue, mozilla::ErrorResult& rv) \
michael@0 76 { \
michael@0 77 rv = SetPropertyValue(eCSSProperty_##id_, aValue); \
michael@0 78 }
michael@0 79
michael@0 80 #define CSS_PROP_LIST_EXCLUDE_INTERNAL
michael@0 81 #define CSS_PROP_SHORTHAND(name_, id_, method_, flags_, pref_) \
michael@0 82 CSS_PROP(name_, id_, method_, flags_, pref_, X, X, X, X, X)
michael@0 83 #include "nsCSSPropList.h"
michael@0 84
michael@0 85 #define CSS_PROP_ALIAS(aliasname_, propid_, aliasmethod_, pref_) \
michael@0 86 CSS_PROP(X, propid_, aliasmethod_, X, pref_, X, X, X, X, X)
michael@0 87 #include "nsCSSPropAliasList.h"
michael@0 88 #undef CSS_PROP_ALIAS
michael@0 89
michael@0 90 #undef CSS_PROP_SHORTHAND
michael@0 91 #undef CSS_PROP_LIST_EXCLUDE_INTERNAL
michael@0 92 #undef CSS_PROP
michael@0 93 #undef CSS_PROP_PUBLIC_OR_PRIVATE
michael@0 94
michael@0 95 virtual void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aPropName) MOZ_OVERRIDE;
michael@0 96
michael@0 97 virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
michael@0 98
michael@0 99 protected:
michael@0 100 // This method can return null regardless of the value of aAllocate;
michael@0 101 // however, a null return should only be considered a failure
michael@0 102 // if aAllocate is true.
michael@0 103 virtual mozilla::css::Declaration* GetCSSDeclaration(bool aAllocate) = 0;
michael@0 104 virtual nsresult SetCSSDeclaration(mozilla::css::Declaration* aDecl) = 0;
michael@0 105 // Document that we must call BeginUpdate/EndUpdate on around the
michael@0 106 // calls to SetCSSDeclaration and the style rule mutation that leads
michael@0 107 // to it.
michael@0 108 virtual nsIDocument* DocToUpdate() = 0;
michael@0 109
michael@0 110 // Information neded to parse a declaration. We need the mSheetURI
michael@0 111 // for error reporting, mBaseURI to resolve relative URIs,
michael@0 112 // mPrincipal for subresource loads, and mCSSLoader for determining
michael@0 113 // whether we're in quirks mode. mBaseURI needs to be a strong
michael@0 114 // pointer because of xml:base possibly creating base URIs on the
michael@0 115 // fly. This is why we don't use CSSParsingEnvironment as a return
michael@0 116 // value, to avoid multiple-refcounting of mBaseURI.
michael@0 117 struct CSSParsingEnvironment {
michael@0 118 nsIURI* mSheetURI;
michael@0 119 nsCOMPtr<nsIURI> mBaseURI;
michael@0 120 nsIPrincipal* mPrincipal;
michael@0 121 mozilla::css::Loader* mCSSLoader;
michael@0 122 };
michael@0 123
michael@0 124 // On failure, mPrincipal should be set to null in aCSSParseEnv.
michael@0 125 // If mPrincipal is null, the other members may not be set to
michael@0 126 // anything meaningful.
michael@0 127 virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) = 0;
michael@0 128
michael@0 129 // An implementation for GetCSSParsingEnvironment for callers wrapping
michael@0 130 // an css::Rule.
michael@0 131 static void GetCSSParsingEnvironmentForRule(mozilla::css::Rule* aRule,
michael@0 132 CSSParsingEnvironment& aCSSParseEnv);
michael@0 133
michael@0 134 nsresult ParsePropertyValue(const nsCSSProperty aPropID,
michael@0 135 const nsAString& aPropValue,
michael@0 136 bool aIsImportant);
michael@0 137
michael@0 138 // Prop-id based version of RemoveProperty. Note that this does not
michael@0 139 // return the old value; it just does a straight removal.
michael@0 140 nsresult RemoveProperty(const nsCSSProperty aPropID);
michael@0 141
michael@0 142 void GetCustomPropertyValue(const nsAString& aPropertyName, nsAString& aValue);
michael@0 143 nsresult RemoveCustomProperty(const nsAString& aPropertyName);
michael@0 144 nsresult ParseCustomPropertyValue(const nsAString& aPropertyName,
michael@0 145 const nsAString& aPropValue,
michael@0 146 bool aIsImportant);
michael@0 147
michael@0 148 protected:
michael@0 149 virtual ~nsDOMCSSDeclaration();
michael@0 150 nsDOMCSSDeclaration()
michael@0 151 {
michael@0 152 SetIsDOMBinding();
michael@0 153 }
michael@0 154 };
michael@0 155
michael@0 156 bool IsCSSPropertyExposedToJS(nsCSSProperty aProperty, JSContext* cx, JSObject* obj);
michael@0 157
michael@0 158 template <nsCSSProperty Property>
michael@0 159 MOZ_ALWAYS_INLINE bool IsCSSPropertyExposedToJS(JSContext* cx, JSObject* obj)
michael@0 160 {
michael@0 161 return IsCSSPropertyExposedToJS(Property, cx, obj);
michael@0 162 }
michael@0 163
michael@0 164 #endif // nsDOMCSSDeclaration_h___

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