summaryrefslogtreecommitdiffstats
path: root/dom/base/DOMQuad.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'dom/base/DOMQuad.cpp')
-rw-r--r--dom/base/DOMQuad.cpp151
1 files changed, 151 insertions, 0 deletions
diff --git a/dom/base/DOMQuad.cpp b/dom/base/DOMQuad.cpp
new file mode 100644
index 0000000000..38acffd049
--- /dev/null
+++ b/dom/base/DOMQuad.cpp
@@ -0,0 +1,151 @@
+/* -*- 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/DOMQuad.h"
+
+#include <algorithm>
+#include "mozilla/FloatingPoint.h"
+#include "mozilla/MacroForEach.h"
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/dom/DOMPoint.h"
+#include "mozilla/dom/DOMQuadBinding.h"
+#include "mozilla/dom/DOMRect.h"
+#include "mozilla/dom/DOMRectBinding.h"
+#include "mozilla/gfx/BasePoint.h"
+#include "mozilla/gfx/MatrixFwd.h"
+#include "nsIGlobalObject.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+using namespace mozilla::gfx;
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DOMQuad, mParent, mPoints[0], mPoints[1],
+ mPoints[2], mPoints[3])
+
+DOMQuad::DOMQuad(nsISupports* aParent, CSSPoint aPoints[4]) : mParent(aParent) {
+ for (uint32_t i = 0; i < 4; ++i) {
+ mPoints[i] = new DOMPoint(aParent, aPoints[i].x, aPoints[i].y);
+ }
+}
+
+DOMQuad::DOMQuad(nsISupports* aParent) : mParent(aParent) {}
+
+DOMQuad::~DOMQuad() = default;
+
+JSObject* DOMQuad::WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) {
+ return DOMQuad_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+already_AddRefed<DOMQuad> DOMQuad::FromRect(const GlobalObject& aGlobal,
+ const DOMRectInit& aInit) {
+ nsISupports* parent = aGlobal.GetAsSupports();
+ RefPtr<DOMQuad> obj = new DOMQuad(parent);
+ obj->mPoints[0] = new DOMPoint(parent, aInit.mX, aInit.mY, 0, 1);
+ obj->mPoints[1] =
+ new DOMPoint(parent, aInit.mX + aInit.mWidth, aInit.mY, 0, 1);
+ obj->mPoints[2] = new DOMPoint(parent, aInit.mX + aInit.mWidth,
+ aInit.mY + aInit.mHeight, 0, 1);
+ obj->mPoints[3] =
+ new DOMPoint(parent, aInit.mX, aInit.mY + aInit.mHeight, 0, 1);
+ return obj.forget();
+}
+
+already_AddRefed<DOMQuad> DOMQuad::FromQuad(const GlobalObject& aGlobal,
+ const DOMQuadInit& aInit) {
+ RefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports());
+ obj->mPoints[0] = DOMPoint::FromPoint(aGlobal, aInit.mP1);
+ obj->mPoints[1] = DOMPoint::FromPoint(aGlobal, aInit.mP2);
+ obj->mPoints[2] = DOMPoint::FromPoint(aGlobal, aInit.mP3);
+ obj->mPoints[3] = DOMPoint::FromPoint(aGlobal, aInit.mP4);
+ return obj.forget();
+}
+
+already_AddRefed<DOMQuad> DOMQuad::Constructor(const GlobalObject& aGlobal,
+ const DOMPointInit& aP1,
+ const DOMPointInit& aP2,
+ const DOMPointInit& aP3,
+ const DOMPointInit& aP4) {
+ RefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports());
+ obj->mPoints[0] = DOMPoint::FromPoint(aGlobal, aP1);
+ obj->mPoints[1] = DOMPoint::FromPoint(aGlobal, aP2);
+ obj->mPoints[2] = DOMPoint::FromPoint(aGlobal, aP3);
+ obj->mPoints[3] = DOMPoint::FromPoint(aGlobal, aP4);
+ return obj.forget();
+}
+
+already_AddRefed<DOMQuad> DOMQuad::Constructor(const GlobalObject& aGlobal,
+ const DOMRectReadOnly& aRect) {
+ CSSPoint points[4];
+ Float x = aRect.X(), y = aRect.Y(), w = aRect.Width(), h = aRect.Height();
+ points[0] = CSSPoint(x, y);
+ points[1] = CSSPoint(x + w, y);
+ points[2] = CSSPoint(x + w, y + h);
+ points[3] = CSSPoint(x, y + h);
+ RefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports(), points);
+ return obj.forget();
+}
+
+void DOMQuad::GetHorizontalMinMax(double* aX1, double* aX2) const {
+ double x1, x2;
+ x1 = x2 = Point(0)->X();
+ for (uint32_t i = 1; i < 4; ++i) {
+ double x = Point(i)->X();
+ x1 = NaNSafeMin(x1, x);
+ x2 = NaNSafeMax(x2, x);
+ }
+ *aX1 = x1;
+ *aX2 = x2;
+}
+
+void DOMQuad::GetVerticalMinMax(double* aY1, double* aY2) const {
+ double y1, y2;
+ y1 = y2 = Point(0)->Y();
+ for (uint32_t i = 1; i < 4; ++i) {
+ double y = Point(i)->Y();
+ y1 = NaNSafeMin(y1, y);
+ y2 = NaNSafeMax(y2, y);
+ }
+ *aY1 = y1;
+ *aY2 = y2;
+}
+
+already_AddRefed<DOMRectReadOnly> DOMQuad::GetBounds() const {
+ double x1, x2;
+ double y1, y2;
+
+ GetHorizontalMinMax(&x1, &x2);
+ GetVerticalMinMax(&y1, &y2);
+
+ RefPtr<DOMRectReadOnly> rval =
+ new DOMRectReadOnly(GetParentObject(), x1, y1, x2 - x1, y2 - y1);
+ return rval.forget();
+}
+
+// https://drafts.fxtf.org/geometry/#structured-serialization
+bool DOMQuad::WriteStructuredClone(JSContext* aCx,
+ JSStructuredCloneWriter* aWriter) const {
+ for (const auto& point : mPoints) {
+ if (!point->WriteStructuredClone(aCx, aWriter)) {
+ return false;
+ }
+ }
+ return true;
+}
+
+// static
+already_AddRefed<DOMQuad> DOMQuad::ReadStructuredClone(
+ JSContext* aCx, nsIGlobalObject* aGlobal,
+ JSStructuredCloneReader* aReader) {
+ RefPtr<DOMQuad> quad = new DOMQuad(aGlobal);
+ for (auto& point : quad->mPoints) {
+ point = DOMPoint::ReadStructuredClone(aCx, aGlobal, aReader);
+ if (!point) {
+ return nullptr;
+ }
+ }
+ return quad.forget();
+}