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layout/style/nsROCSSPrimitiveValue.h@925c144e1f1f (annotated)

layout/style/nsROCSSPrimitiveValue.h

Fri, 16 Jan 2015 18:13:44 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Fri, 16 Jan 2015 18:13:44 +0100
branch
TOR_BUG_9701
changeset 14
925c144e1f1f
permissions
-rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

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 /* DOM object representing values in DOM computed style */
michael@0 7
michael@0 8 #ifndef nsROCSSPrimitiveValue_h___
michael@0 9 #define nsROCSSPrimitiveValue_h___
michael@0 10
michael@0 11 #include "nsIDOMCSSValue.h"
michael@0 12 #include "nsIDOMCSSPrimitiveValue.h"
michael@0 13 #include "nsCSSKeywords.h"
michael@0 14 #include "CSSValue.h"
michael@0 15 #include "nsCOMPtr.h"
michael@0 16 #include "nsCoord.h"
michael@0 17
michael@0 18 class nsIURI;
michael@0 19 class nsDOMCSSRect;
michael@0 20 class nsDOMCSSRGBColor;
michael@0 21
michael@0 22 // There is no CSS_TURN constant on the CSSPrimitiveValue interface,
michael@0 23 // since that unit is newer than DOM Level 2 Style, and CSS OM will
michael@0 24 // probably expose CSS values in some other way in the future. We
michael@0 25 // use this value in mType for "turn"-unit angles, but we define it
michael@0 26 // here to avoid exposing it to content.
michael@0 27 #define CSS_TURN 30U
michael@0 28 // Likewise we have some internal aliases for CSS_NUMBER that we don't
michael@0 29 // want to expose.
michael@0 30 #define CSS_NUMBER_INT32 31U
michael@0 31 #define CSS_NUMBER_UINT32 32U
michael@0 32
michael@0 33 /**
michael@0 34 * Read-only CSS primitive value - a DOM object representing values in DOM
michael@0 35 * computed style.
michael@0 36 */
michael@0 37 class nsROCSSPrimitiveValue MOZ_FINAL : public mozilla::dom::CSSValue,
michael@0 38 public nsIDOMCSSPrimitiveValue
michael@0 39 {
michael@0 40 public:
michael@0 41 NS_DECL_CYCLE_COLLECTING_ISUPPORTS
michael@0 42 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsROCSSPrimitiveValue, mozilla::dom::CSSValue)
michael@0 43
michael@0 44 // nsIDOMCSSPrimitiveValue
michael@0 45 NS_DECL_NSIDOMCSSPRIMITIVEVALUE
michael@0 46
michael@0 47 // nsIDOMCSSValue
michael@0 48 NS_DECL_NSIDOMCSSVALUE
michael@0 49
michael@0 50 // CSSValue
michael@0 51 virtual void GetCssText(nsString& aText, mozilla::ErrorResult& aRv) MOZ_OVERRIDE MOZ_FINAL;
michael@0 52 virtual void SetCssText(const nsAString& aText, mozilla::ErrorResult& aRv) MOZ_OVERRIDE MOZ_FINAL;
michael@0 53 virtual uint16_t CssValueType() const MOZ_OVERRIDE MOZ_FINAL;
michael@0 54
michael@0 55 // CSSPrimitiveValue
michael@0 56 uint16_t PrimitiveType()
michael@0 57 {
michael@0 58 // New value types were introduced but not added to CSS OM.
michael@0 59 // Return CSS_UNKNOWN to avoid exposing CSS_TURN to content.
michael@0 60 if (mType > CSS_RGBCOLOR) {
michael@0 61 if (mType == CSS_NUMBER_INT32 || mType == CSS_NUMBER_UINT32) {
michael@0 62 return CSS_NUMBER;
michael@0 63 }
michael@0 64 return CSS_UNKNOWN;
michael@0 65 }
michael@0 66 return mType;
michael@0 67 }
michael@0 68 void SetFloatValue(uint16_t aUnitType, float aValue,
michael@0 69 mozilla::ErrorResult& aRv);
michael@0 70 float GetFloatValue(uint16_t aUnitType, mozilla::ErrorResult& aRv);
michael@0 71 void GetStringValue(nsString& aString, mozilla::ErrorResult& aRv);
michael@0 72 void SetStringValue(uint16_t aUnitType, const nsAString& aString,
michael@0 73 mozilla::ErrorResult& aRv);
michael@0 74 already_AddRefed<nsIDOMCounter> GetCounterValue(mozilla::ErrorResult& aRv);
michael@0 75 nsDOMCSSRect* GetRectValue(mozilla::ErrorResult& aRv);
michael@0 76 nsDOMCSSRGBColor *GetRGBColorValue(mozilla::ErrorResult& aRv);
michael@0 77
michael@0 78 // nsROCSSPrimitiveValue
michael@0 79 nsROCSSPrimitiveValue();
michael@0 80 ~nsROCSSPrimitiveValue();
michael@0 81
michael@0 82 void SetNumber(float aValue);
michael@0 83 void SetNumber(int32_t aValue);
michael@0 84 void SetNumber(uint32_t aValue);
michael@0 85 void SetPercent(float aValue);
michael@0 86 void SetDegree(float aValue);
michael@0 87 void SetGrad(float aValue);
michael@0 88 void SetRadian(float aValue);
michael@0 89 void SetTurn(float aValue);
michael@0 90 void SetAppUnits(nscoord aValue);
michael@0 91 void SetAppUnits(float aValue);
michael@0 92 void SetIdent(nsCSSKeyword aKeyword);
michael@0 93 // FIXME: CSS_STRING should imply a string with "" and a need for escaping.
michael@0 94 void SetString(const nsACString& aString, uint16_t aType = CSS_STRING);
michael@0 95 // FIXME: CSS_STRING should imply a string with "" and a need for escaping.
michael@0 96 void SetString(const nsAString& aString, uint16_t aType = CSS_STRING);
michael@0 97 void SetURI(nsIURI *aURI);
michael@0 98 void SetColor(nsDOMCSSRGBColor* aColor);
michael@0 99 void SetRect(nsDOMCSSRect* aRect);
michael@0 100 void SetTime(float aValue);
michael@0 101 void Reset();
michael@0 102
michael@0 103 nsISupports* GetParentObject() const
michael@0 104 {
michael@0 105 return nullptr;
michael@0 106 }
michael@0 107
michael@0 108 virtual JSObject *WrapObject(JSContext *cx) MOZ_OVERRIDE;
michael@0 109
michael@0 110 private:
michael@0 111 uint16_t mType;
michael@0 112
michael@0 113 union {
michael@0 114 nscoord mAppUnits;
michael@0 115 float mFloat;
michael@0 116 int32_t mInt32;
michael@0 117 uint32_t mUint32;
michael@0 118 nsDOMCSSRGBColor* mColor;
michael@0 119 nsDOMCSSRect* mRect;
michael@0 120 char16_t* mString;
michael@0 121 nsIURI* mURI;
michael@0 122 nsCSSKeyword mKeyword;
michael@0 123 } mValue;
michael@0 124 };
michael@0 125
michael@0 126 inline nsROCSSPrimitiveValue *mozilla::dom::CSSValue::AsPrimitiveValue()
michael@0 127 {
michael@0 128 return CssValueType() == nsIDOMCSSValue::CSS_PRIMITIVE_VALUE ?
michael@0 129 static_cast<nsROCSSPrimitiveValue*>(this) : nullptr;
michael@0 130 }
michael@0 131
michael@0 132 #endif /* nsROCSSPrimitiveValue_h___ */
michael@0 133

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