The Tor Browser / file comparison
comparison: content/base/src/DOMRect.h
content/base/src/DOMRect.h
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
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| -1:000000000000 | 0:28add69bfbcd |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef MOZILLA_DOMRECT_H_ | |
| 7 #define MOZILLA_DOMRECT_H_ | |
| 8 | |
| 9 #include "nsIDOMClientRect.h" | |
| 10 #include "nsIDOMClientRectList.h" | |
| 11 #include "nsTArray.h" | |
| 12 #include "nsCOMPtr.h" | |
| 13 #include "nsAutoPtr.h" | |
| 14 #include "nsWrapperCache.h" | |
| 15 #include "nsCycleCollectionParticipant.h" | |
| 16 #include "mozilla/Attributes.h" | |
| 17 #include "mozilla/dom/BindingDeclarations.h" | |
| 18 #include "mozilla/ErrorResult.h" | |
| 19 #include <algorithm> | |
| 20 | |
| 21 struct nsRect; | |
| 22 | |
| 23 namespace mozilla { | |
| 24 namespace dom { | |
| 25 | |
| 26 class DOMRectReadOnly : public nsISupports | |
| 27 , public nsWrapperCache | |
| 28 { | |
| 29 public: | |
| 30 NS_DECL_CYCLE_COLLECTING_ISUPPORTS | |
| 31 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMRectReadOnly) | |
| 32 | |
| 33 virtual ~DOMRectReadOnly() {} | |
| 34 | |
| 35 DOMRectReadOnly(nsISupports* aParent) | |
| 36 : mParent(aParent) | |
| 37 { | |
| 38 SetIsDOMBinding(); | |
| 39 } | |
| 40 | |
| 41 nsISupports* GetParentObject() const | |
| 42 { | |
| 43 MOZ_ASSERT(mParent); | |
| 44 return mParent; | |
| 45 } | |
| 46 virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE; | |
| 47 | |
| 48 virtual double X() const = 0; | |
| 49 virtual double Y() const = 0; | |
| 50 virtual double Width() const = 0; | |
| 51 virtual double Height() const = 0; | |
| 52 | |
| 53 double Left() const | |
| 54 { | |
| 55 double x = X(), w = Width(); | |
| 56 return std::min(x, x + w); | |
| 57 } | |
| 58 double Top() const | |
| 59 { | |
| 60 double y = Y(), h = Height(); | |
| 61 return std::min(y, y + h); | |
| 62 } | |
| 63 double Right() const | |
| 64 { | |
| 65 double x = X(), w = Width(); | |
| 66 return std::max(x, x + w); | |
| 67 } | |
| 68 double Bottom() const | |
| 69 { | |
| 70 double y = Y(), h = Height(); | |
| 71 return std::max(y, y + h); | |
| 72 } | |
| 73 | |
| 74 protected: | |
| 75 nsCOMPtr<nsISupports> mParent; | |
| 76 }; | |
| 77 | |
| 78 class DOMRect MOZ_FINAL : public DOMRectReadOnly | |
| 79 , public nsIDOMClientRect | |
| 80 { | |
| 81 public: | |
| 82 DOMRect(nsISupports* aParent, double aX = 0, double aY = 0, | |
| 83 double aWidth = 0, double aHeight = 0) | |
| 84 : DOMRectReadOnly(aParent) | |
| 85 , mX(aX) | |
| 86 , mY(aY) | |
| 87 , mWidth(aWidth) | |
| 88 , mHeight(aHeight) | |
| 89 { | |
| 90 } | |
| 91 | |
| 92 NS_DECL_ISUPPORTS_INHERITED | |
| 93 NS_DECL_NSIDOMCLIENTRECT | |
| 94 | |
| 95 static already_AddRefed<DOMRect> | |
| 96 Constructor(const GlobalObject& aGlobal, ErrorResult& aRV); | |
| 97 static already_AddRefed<DOMRect> | |
| 98 Constructor(const GlobalObject& aGlobal, double aX, double aY, | |
| 99 double aWidth, double aHeight, ErrorResult& aRV); | |
| 100 | |
| 101 virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE; | |
| 102 | |
| 103 void SetRect(float aX, float aY, float aWidth, float aHeight) { | |
| 104 mX = aX; mY = aY; mWidth = aWidth; mHeight = aHeight; | |
| 105 } | |
| 106 void SetLayoutRect(const nsRect& aLayoutRect); | |
| 107 | |
| 108 virtual double X() const MOZ_OVERRIDE | |
| 109 { | |
| 110 return mX; | |
| 111 } | |
| 112 virtual double Y() const MOZ_OVERRIDE | |
| 113 { | |
| 114 return mY; | |
| 115 } | |
| 116 virtual double Width() const MOZ_OVERRIDE | |
| 117 { | |
| 118 return mWidth; | |
| 119 } | |
| 120 virtual double Height() const MOZ_OVERRIDE | |
| 121 { | |
| 122 return mHeight; | |
| 123 } | |
| 124 | |
| 125 void SetX(double aX) | |
| 126 { | |
| 127 mX = aX; | |
| 128 } | |
| 129 void SetY(double aY) | |
| 130 { | |
| 131 mY = aY; | |
| 132 } | |
| 133 void SetWidth(double aWidth) | |
| 134 { | |
| 135 mWidth = aWidth; | |
| 136 } | |
| 137 void SetHeight(double aHeight) | |
| 138 { | |
| 139 mHeight = aHeight; | |
| 140 } | |
| 141 | |
| 142 protected: | |
| 143 double mX, mY, mWidth, mHeight; | |
| 144 }; | |
| 145 | |
| 146 class DOMRectList MOZ_FINAL : public nsIDOMClientRectList, | |
| 147 public nsWrapperCache | |
| 148 { | |
| 149 public: | |
| 150 DOMRectList(nsISupports *aParent) : mParent(aParent) | |
| 151 { | |
| 152 SetIsDOMBinding(); | |
| 153 } | |
| 154 | |
| 155 NS_DECL_CYCLE_COLLECTING_ISUPPORTS | |
| 156 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMRectList) | |
| 157 | |
| 158 NS_DECL_NSIDOMCLIENTRECTLIST | |
| 159 | |
| 160 virtual JSObject* WrapObject(JSContext *cx) MOZ_OVERRIDE; | |
| 161 | |
| 162 nsISupports* GetParentObject() | |
| 163 { | |
| 164 return mParent; | |
| 165 } | |
| 166 | |
| 167 void Append(DOMRect* aElement) { mArray.AppendElement(aElement); } | |
| 168 | |
| 169 static DOMRectList* FromSupports(nsISupports* aSupports) | |
| 170 { | |
| 171 #ifdef DEBUG | |
| 172 { | |
| 173 nsCOMPtr<nsIDOMClientRectList> list_qi = do_QueryInterface(aSupports); | |
| 174 | |
| 175 // If this assertion fires the QI implementation for the object in | |
| 176 // question doesn't use the nsIDOMClientRectList pointer as the nsISupports | |
| 177 // pointer. That must be fixed, or we'll crash... | |
| 178 NS_ASSERTION(list_qi == static_cast<nsIDOMClientRectList*>(aSupports), | |
| 179 "Uh, fix QI!"); | |
| 180 } | |
| 181 #endif | |
| 182 | |
| 183 return static_cast<DOMRectList*>(aSupports); | |
| 184 } | |
| 185 | |
| 186 uint32_t Length() | |
| 187 { | |
| 188 return mArray.Length(); | |
| 189 } | |
| 190 DOMRect* Item(uint32_t aIndex) | |
| 191 { | |
| 192 return mArray.SafeElementAt(aIndex); | |
| 193 } | |
| 194 DOMRect* IndexedGetter(uint32_t aIndex, bool& aFound) | |
| 195 { | |
| 196 aFound = aIndex < mArray.Length(); | |
| 197 if (!aFound) { | |
| 198 return nullptr; | |
| 199 } | |
| 200 return mArray[aIndex]; | |
| 201 } | |
| 202 | |
| 203 protected: | |
| 204 nsTArray<nsRefPtr<DOMRect> > mArray; | |
| 205 nsCOMPtr<nsISupports> mParent; | |
| 206 }; | |
| 207 | |
| 208 } | |
| 209 } | |
| 210 | |
| 211 #endif /*MOZILLA_DOMRECT_H_*/ |
