The Tor Browser / file comparison
comparison: content/base/src/DOMRect.cpp
content/base/src/DOMRect.cpp
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:fa36e27b1297 |
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| 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 #include "mozilla/dom/DOMRect.h" | |
| 7 | |
| 8 #include "nsPresContext.h" | |
| 9 #include "mozilla/dom/DOMRectListBinding.h" | |
| 10 #include "mozilla/dom/DOMRectBinding.h" | |
| 11 | |
| 12 using namespace mozilla; | |
| 13 using namespace mozilla::dom; | |
| 14 | |
| 15 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(DOMRectReadOnly, mParent) | |
| 16 NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMRectReadOnly) | |
| 17 NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMRectReadOnly) | |
| 18 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DOMRectReadOnly) | |
| 19 NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY | |
| 20 NS_INTERFACE_MAP_ENTRY(nsISupports) | |
| 21 NS_INTERFACE_MAP_END | |
| 22 | |
| 23 JSObject* | |
| 24 DOMRectReadOnly::WrapObject(JSContext* aCx) | |
| 25 { | |
| 26 MOZ_ASSERT(mParent); | |
| 27 return DOMRectReadOnlyBinding::Wrap(aCx, this); | |
| 28 } | |
| 29 | |
| 30 // ----------------------------------------------------------------------------- | |
| 31 | |
| 32 NS_IMPL_ISUPPORTS_INHERITED(DOMRect, DOMRectReadOnly, nsIDOMClientRect) | |
| 33 | |
| 34 #define FORWARD_GETTER(_name) \ | |
| 35 NS_IMETHODIMP \ | |
| 36 DOMRect::Get ## _name(float* aResult) \ | |
| 37 { \ | |
| 38 *aResult = float(_name()); \ | |
| 39 return NS_OK; \ | |
| 40 } | |
| 41 | |
| 42 FORWARD_GETTER(Left) | |
| 43 FORWARD_GETTER(Top) | |
| 44 FORWARD_GETTER(Right) | |
| 45 FORWARD_GETTER(Bottom) | |
| 46 FORWARD_GETTER(Width) | |
| 47 FORWARD_GETTER(Height) | |
| 48 | |
| 49 JSObject* | |
| 50 DOMRect::WrapObject(JSContext* aCx) | |
| 51 { | |
| 52 MOZ_ASSERT(mParent); | |
| 53 return DOMRectBinding::Wrap(aCx, this); | |
| 54 } | |
| 55 | |
| 56 already_AddRefed<DOMRect> | |
| 57 DOMRect::Constructor(const GlobalObject& aGlobal, ErrorResult& aRV) | |
| 58 { | |
| 59 nsRefPtr<DOMRect> obj = | |
| 60 new DOMRect(aGlobal.GetAsSupports(), 0.0, 0.0, 0.0, 0.0); | |
| 61 return obj.forget(); | |
| 62 } | |
| 63 | |
| 64 already_AddRefed<DOMRect> | |
| 65 DOMRect::Constructor(const GlobalObject& aGlobal, double aX, double aY, | |
| 66 double aWidth, double aHeight, ErrorResult& aRV) | |
| 67 { | |
| 68 nsRefPtr<DOMRect> obj = | |
| 69 new DOMRect(aGlobal.GetAsSupports(), aX, aY, aWidth, aHeight); | |
| 70 return obj.forget(); | |
| 71 } | |
| 72 | |
| 73 // ----------------------------------------------------------------------------- | |
| 74 | |
| 75 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(DOMRectList, mParent, mArray) | |
| 76 | |
| 77 NS_INTERFACE_TABLE_HEAD(DOMRectList) | |
| 78 NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY | |
| 79 NS_INTERFACE_TABLE(DOMRectList, nsIDOMClientRectList) | |
| 80 NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(DOMRectList) | |
| 81 NS_INTERFACE_MAP_END | |
| 82 | |
| 83 NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMRectList) | |
| 84 NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMRectList) | |
| 85 | |
| 86 | |
| 87 NS_IMETHODIMP | |
| 88 DOMRectList::GetLength(uint32_t* aLength) | |
| 89 { | |
| 90 *aLength = Length(); | |
| 91 return NS_OK; | |
| 92 } | |
| 93 | |
| 94 NS_IMETHODIMP | |
| 95 DOMRectList::Item(uint32_t aIndex, nsIDOMClientRect** aReturn) | |
| 96 { | |
| 97 NS_IF_ADDREF(*aReturn = Item(aIndex)); | |
| 98 return NS_OK; | |
| 99 } | |
| 100 | |
| 101 JSObject* | |
| 102 DOMRectList::WrapObject(JSContext *cx) | |
| 103 { | |
| 104 return mozilla::dom::DOMRectListBinding::Wrap(cx, this); | |
| 105 } | |
| 106 | |
| 107 static double | |
| 108 RoundFloat(double aValue) | |
| 109 { | |
| 110 return floor(aValue + 0.5); | |
| 111 } | |
| 112 | |
| 113 void | |
| 114 DOMRect::SetLayoutRect(const nsRect& aLayoutRect) | |
| 115 { | |
| 116 double scale = 65536.0; | |
| 117 // Round to the nearest 1/scale units. We choose scale so it can be represented | |
| 118 // exactly by machine floating point. | |
| 119 double scaleInv = 1/scale; | |
| 120 double t2pScaled = scale/nsPresContext::AppUnitsPerCSSPixel(); | |
| 121 double x = RoundFloat(aLayoutRect.x*t2pScaled)*scaleInv; | |
| 122 double y = RoundFloat(aLayoutRect.y*t2pScaled)*scaleInv; | |
| 123 SetRect(x, y, RoundFloat(aLayoutRect.XMost()*t2pScaled)*scaleInv - x, | |
| 124 RoundFloat(aLayoutRect.YMost()*t2pScaled)*scaleInv - y); | |
| 125 } |
