09a62bd8eb
Backed out changeset 98e31d225a5a (bug 917755) Backed out changeset 43bceca43fb6 (bug 917755) Backed out changeset 5117e3f594e7 (bug 917755) Backed out changeset ada41f2f74b8 (bug 917755) Backed out changeset 5272cfbd63f3 (bug 917755) Backed out changeset f3bbd98021f7 (bug 917755) Backed out changeset b049571a7cce (bug 917755) Backed out changeset 472cb7738e14 (bug 917755)
99 lines
3.0 KiB
C++
99 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "DOMRect.h"
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#include "nsPresContext.h"
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#include "mozilla/dom/DOMRectListBinding.h"
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#include "mozilla/dom/DOMRectBinding.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(DOMRect, mParent)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMRect)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMRect)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DOMRect)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsIDOMClientRect)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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#define FORWARD_GETTER(_name) \
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NS_IMETHODIMP \
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DOMRect::Get ## _name(float* aResult) \
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{ \
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*aResult = _name(); \
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return NS_OK; \
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}
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FORWARD_GETTER(Left)
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FORWARD_GETTER(Top)
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FORWARD_GETTER(Right)
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FORWARD_GETTER(Bottom)
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FORWARD_GETTER(Width)
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FORWARD_GETTER(Height)
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JSObject*
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DOMRect::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope)
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{
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MOZ_ASSERT(mParent);
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return DOMRectBinding::Wrap(aCx, aScope, this);
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}
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// -----------------------------------------------------------------------------
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(DOMRectList, mParent, mArray)
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NS_INTERFACE_TABLE_HEAD(DOMRectList)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_TABLE1(DOMRectList, nsIDOMClientRectList)
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NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(DOMRectList)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMRectList)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMRectList)
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NS_IMETHODIMP
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DOMRectList::GetLength(uint32_t* aLength)
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{
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*aLength = Length();
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return NS_OK;
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}
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NS_IMETHODIMP
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DOMRectList::Item(uint32_t aIndex, nsIDOMClientRect** aReturn)
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{
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NS_IF_ADDREF(*aReturn = Item(aIndex));
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return NS_OK;
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}
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JSObject*
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DOMRectList::WrapObject(JSContext *cx, JS::Handle<JSObject*> scope)
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{
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return mozilla::dom::DOMRectListBinding::Wrap(cx, scope, this);
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}
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static double
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RoundFloat(double aValue)
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{
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return floor(aValue + 0.5);
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}
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void
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DOMRect::SetLayoutRect(const nsRect& aLayoutRect)
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{
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double scale = 65536.0;
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// Round to the nearest 1/scale units. We choose scale so it can be represented
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// exactly by machine floating point.
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double scaleInv = 1/scale;
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double t2pScaled = scale/nsPresContext::AppUnitsPerCSSPixel();
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double x = RoundFloat(aLayoutRect.x*t2pScaled)*scaleInv;
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double y = RoundFloat(aLayoutRect.y*t2pScaled)*scaleInv;
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SetRect(x, y, RoundFloat(aLayoutRect.XMost()*t2pScaled)*scaleInv - x,
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RoundFloat(aLayoutRect.YMost()*t2pScaled)*scaleInv - y);
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}
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