The Tor Browser: content/base/src/DOMQuad.cpp@deefc01c0e14

Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)

     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/. */

     6 #include "mozilla/dom/DOMQuad.h"

     8 #include "mozilla/dom/DOMQuadBinding.h"

     9 #include "mozilla/dom/DOMPoint.h"

    10 #include "mozilla/dom/DOMRect.h"

    11 #include <algorithm>

    13 using namespace mozilla;

    14 using namespace mozilla::dom;

    15 using namespace mozilla::gfx;

    17 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_6(DOMQuad, mParent, mBounds, mPoints[0],

    18                                         mPoints[1], mPoints[2], mPoints[3])

    20 NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(DOMQuad, AddRef)

    21 NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(DOMQuad, Release)

    23 DOMQuad::DOMQuad(nsISupports* aParent, CSSPoint aPoints[4])

    24   : mParent(aParent)

    25 {

    26   SetIsDOMBinding();

    27   for (uint32_t i = 0; i < 4; ++i) {

    28     mPoints[i] = new DOMPoint(aParent, aPoints[i].x, aPoints[i].y);

    29   }

    30 }

    32 DOMQuad::DOMQuad(nsISupports* aParent)

    33   : mParent(aParent)

    34 {

    35   SetIsDOMBinding();

    36 }

    38 DOMQuad::~DOMQuad()

    39 {

    40 }

    42 JSObject*

    43 DOMQuad::WrapObject(JSContext* aCx)

    44 {

    45   return DOMQuadBinding::Wrap(aCx, this);

    46 }

    48 already_AddRefed<DOMQuad>

    49 DOMQuad::Constructor(const GlobalObject& aGlobal,

    50                      const DOMPointInit& aP1,

    51                      const DOMPointInit& aP2,

    52                      const DOMPointInit& aP3,

    53                      const DOMPointInit& aP4,

    54                      ErrorResult& aRV)

    55 {

    56   nsRefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports());

    57   obj->mPoints[0] = DOMPoint::Constructor(aGlobal, aP1, aRV);

    58   obj->mPoints[1] = DOMPoint::Constructor(aGlobal, aP2, aRV);

    59   obj->mPoints[2] = DOMPoint::Constructor(aGlobal, aP3, aRV);

    60   obj->mPoints[3] = DOMPoint::Constructor(aGlobal, aP4, aRV);

    61   return obj.forget();

    62 }

    64 already_AddRefed<DOMQuad>

    65 DOMQuad::Constructor(const GlobalObject& aGlobal, const DOMRectReadOnly& aRect,

    66                      ErrorResult& aRV)

    67 {

    68   CSSPoint points[4];

    69   Float x = aRect.X(), y = aRect.Y(), w = aRect.Width(), h = aRect.Height();

    70   points[0] = CSSPoint(x, y);

    71   points[1] = CSSPoint(x + w, y);

    72   points[2] = CSSPoint(x + w, y + h);

    73   points[3] = CSSPoint(x, y + h);

    74   nsRefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports(), points);

    75   return obj.forget();

    76 }

    78 class DOMQuad::QuadBounds MOZ_FINAL : public DOMRectReadOnly

    79 {

    80 public:

    81   QuadBounds(DOMQuad* aQuad)

    82     : DOMRectReadOnly(aQuad->GetParentObject())

    83     , mQuad(aQuad)

    84   {}

    86   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(QuadBounds, DOMRectReadOnly)

    87   NS_DECL_ISUPPORTS_INHERITED

    89   virtual double X() const

    90   {

    91     double x1, x2;

    92     GetHorizontalMinMax(&x1, &x2);

    93     return x1;

    94   }

    95   virtual double Y() const

    96   {

    97     double y1, y2;

    98     GetVerticalMinMax(&y1, &y2);

    99     return y1;

   100   }

   101   virtual double Width() const

   102   {

   103     double x1, x2;

   104     GetHorizontalMinMax(&x1, &x2);

   105     return x2 - x1;

   106   }

   107   virtual double Height() const

   108   {

   109     double y1, y2;

   110     GetVerticalMinMax(&y1, &y2);

   111     return y2 - y1;

   112   }

   114   void GetHorizontalMinMax(double* aX1, double* aX2) const

   115   {

   116     double x1, x2;

   117     x1 = x2 = mQuad->Point(0)->X();

   118     for (uint32_t i = 1; i < 4; ++i) {

   119       double x = mQuad->Point(i)->X();

   120       x1 = std::min(x1, x);

   121       x2 = std::max(x2, x);

   122     }

   123     *aX1 = x1;

   124     *aX2 = x2;

   125   }

   127   void GetVerticalMinMax(double* aY1, double* aY2) const

   128   {

   129     double y1, y2;

   130     y1 = y2 = mQuad->Point(0)->Y();

   131     for (uint32_t i = 1; i < 4; ++i) {

   132       double y = mQuad->Point(i)->Y();

   133       y1 = std::min(y1, y);

   134       y2 = std::max(y2, y);

   135     }

   136     *aY1 = y1;

   137     *aY2 = y2;

   138   }

   140 protected:

   141   nsRefPtr<DOMQuad> mQuad;

   142 };

   144 NS_IMPL_CYCLE_COLLECTION_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly, mQuad)

   146 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(DOMQuad::QuadBounds)

   147 NS_INTERFACE_MAP_END_INHERITING(DOMRectReadOnly)

   149 NS_IMPL_ADDREF_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly)

   150 NS_IMPL_RELEASE_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly)

   152 DOMRectReadOnly*

   153 DOMQuad::Bounds() const

   154 {

   155   if (!mBounds) {

   156     mBounds = new QuadBounds(const_cast<DOMQuad*>(this));

   157   }

   158   return mBounds;

   159 }

The Tor Browser / file revision

content/base/src/DOMQuad.cpp@deefc01c0e14

content/base/src/DOMQuad.cpp