/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "mozilla/dom/DOMRect.h" #include "nsPresContext.h" #include "mozilla/dom/DOMRectListBinding.h" #include "mozilla/dom/DOMRectBinding.h" using namespace mozilla; using namespace mozilla::dom; NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DOMRectReadOnly, mParent) NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMRectReadOnly) NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMRectReadOnly) NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DOMRectReadOnly) NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY NS_INTERFACE_MAP_ENTRY(nsISupports) NS_INTERFACE_MAP_END JSObject* DOMRectReadOnly::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) { MOZ_ASSERT(mParent); return DOMRectReadOnlyBinding::Wrap(aCx, this, aGivenProto); } // ----------------------------------------------------------------------------- NS_IMPL_ISUPPORTS_INHERITED(DOMRect, DOMRectReadOnly, nsIDOMClientRect) #define FORWARD_GETTER(_name) \ NS_IMETHODIMP \ DOMRect::Get ## _name(float* aResult) \ { \ *aResult = float(_name()); \ return NS_OK; \ } FORWARD_GETTER(Left) FORWARD_GETTER(Top) FORWARD_GETTER(Right) FORWARD_GETTER(Bottom) FORWARD_GETTER(Width) FORWARD_GETTER(Height) JSObject* DOMRect::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) { MOZ_ASSERT(mParent); return DOMRectBinding::Wrap(aCx, this, aGivenProto); } already_AddRefed<DOMRect> DOMRect::Constructor(const GlobalObject& aGlobal, ErrorResult& aRV) { RefPtr<DOMRect> obj = new DOMRect(aGlobal.GetAsSupports(), 0.0, 0.0, 0.0, 0.0); return obj.forget(); } already_AddRefed<DOMRect> DOMRect::Constructor(const GlobalObject& aGlobal, double aX, double aY, double aWidth, double aHeight, ErrorResult& aRV) { RefPtr<DOMRect> obj = new DOMRect(aGlobal.GetAsSupports(), aX, aY, aWidth, aHeight); return obj.forget(); } // ----------------------------------------------------------------------------- NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DOMRectList, mParent, mArray) NS_INTERFACE_TABLE_HEAD(DOMRectList) NS_WRAPPERCACHE_INTERFACE_TABLE_ENTRY NS_INTERFACE_TABLE(DOMRectList, nsIDOMClientRectList) NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(DOMRectList) NS_INTERFACE_MAP_END NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMRectList) NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMRectList) NS_IMETHODIMP DOMRectList::GetLength(uint32_t* aLength) { *aLength = Length(); return NS_OK; } NS_IMETHODIMP DOMRectList::Item(uint32_t aIndex, nsIDOMClientRect** aReturn) { NS_IF_ADDREF(*aReturn = Item(aIndex)); return NS_OK; } JSObject* DOMRectList::WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto) { return mozilla::dom::DOMRectListBinding::Wrap(cx, this, aGivenProto); } static double RoundFloat(double aValue) { return floor(aValue + 0.5); } void DOMRect::SetLayoutRect(const nsRect& aLayoutRect) { double scale = 65536.0; // Round to the nearest 1/scale units. We choose scale so it can be represented // exactly by machine floating point. double scaleInv = 1/scale; double t2pScaled = scale/nsPresContext::AppUnitsPerCSSPixel(); double x = RoundFloat(aLayoutRect.x*t2pScaled)*scaleInv; double y = RoundFloat(aLayoutRect.y*t2pScaled)*scaleInv; SetRect(x, y, RoundFloat(aLayoutRect.XMost()*t2pScaled)*scaleInv - x, RoundFloat(aLayoutRect.YMost()*t2pScaled)*scaleInv - y); }