summaryrefslogtreecommitdiffstats
path: root/dom/svg/DOMSVGNumber.cpp
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/svg/DOMSVGNumber.cpp
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/svg/DOMSVGNumber.cpp')
-rw-r--r--dom/svg/DOMSVGNumber.cpp141
1 files changed, 141 insertions, 0 deletions
diff --git a/dom/svg/DOMSVGNumber.cpp b/dom/svg/DOMSVGNumber.cpp
new file mode 100644
index 0000000000..d24332aca4
--- /dev/null
+++ b/dom/svg/DOMSVGNumber.cpp
@@ -0,0 +1,141 @@
+/* -*- 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 "DOMSVGNumber.h"
+#include "DOMSVGNumberList.h"
+#include "DOMSVGAnimatedNumberList.h"
+#include "SVGAnimatedNumberList.h"
+#include "SVGElement.h"
+#include "nsError.h"
+#include "nsContentUtils.h" // for NS_ENSURE_FINITE
+#include "mozilla/dom/SVGNumberBinding.h"
+#include "mozilla/dom/SVGSVGElement.h"
+
+// See the architecture comment in DOMSVGAnimatedNumberList.h.
+
+namespace mozilla::dom {
+
+// We could use NS_IMPL_CYCLE_COLLECTION(, except that in Unlink() we need to
+// clear our list's weak ref to us to be safe. (The other option would be to
+// not unlink and rely on the breaking of the other edges in the cycle, as
+// NS_SVG_VAL_IMPL_CYCLE_COLLECTION does.)
+NS_IMPL_CYCLE_COLLECTION_CLASS(DOMSVGNumber)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(DOMSVGNumber)
+ // We may not belong to a list, so we must null check tmp->mList.
+ if (tmp->mList) {
+ tmp->mList->mItems[tmp->mListIndex] = nullptr;
+ }
+ NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mList)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mParent)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(DOMSVGNumber)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mList)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParent)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(DOMSVGNumber)
+ NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
+NS_IMPL_CYCLE_COLLECTION_TRACE_END
+
+DOMSVGNumber::DOMSVGNumber(DOMSVGNumberList* aList, uint8_t aAttrEnum,
+ uint32_t aListIndex, bool aIsAnimValItem)
+ : mList(aList),
+ mParent(aList),
+ mListIndex(aListIndex),
+ mAttrEnum(aAttrEnum),
+ mIsAnimValItem(aIsAnimValItem),
+ mValue(0.0f) {
+ // These shifts are in sync with the members in the header.
+ MOZ_ASSERT(aList && aAttrEnum < (1 << 4) && aListIndex <= MaxListIndex(),
+ "bad arg");
+
+ MOZ_ASSERT(IndexIsValid(), "Bad index for DOMSVGNumber!");
+}
+
+DOMSVGNumber::DOMSVGNumber(nsISupports* aParent)
+ : mList(nullptr),
+ mParent(aParent),
+ mListIndex(0),
+ mAttrEnum(0),
+ mIsAnimValItem(false),
+ mValue(0.0f) {}
+
+DOMSVGNumber::DOMSVGNumber(SVGSVGElement* aParent)
+ : mList(nullptr),
+ mParent(ToSupports(aParent)),
+ mListIndex(0),
+ mAttrEnum(0),
+ mIsAnimValItem(false),
+ mValue(0.0f) {}
+
+float DOMSVGNumber::Value() {
+ if (mIsAnimValItem && HasOwner()) {
+ Element()->FlushAnimations(); // May make HasOwner() == false
+ }
+ return HasOwner() ? InternalItem() : mValue;
+}
+
+void DOMSVGNumber::SetValue(float aValue, ErrorResult& aRv) {
+ if (mIsAnimValItem) {
+ aRv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
+ return;
+ }
+
+ if (HasOwner()) {
+ if (InternalItem() == aValue) {
+ return;
+ }
+ AutoChangeNumberListNotifier notifier(this);
+ InternalItem() = aValue;
+ return;
+ }
+
+ mValue = aValue;
+}
+
+void DOMSVGNumber::InsertingIntoList(DOMSVGNumberList* aList, uint8_t aAttrEnum,
+ uint32_t aListIndex, bool aIsAnimValItem) {
+ NS_ASSERTION(!HasOwner(), "Inserting item that is already in a list");
+
+ mList = aList;
+ mAttrEnum = aAttrEnum;
+ mListIndex = aListIndex;
+ mIsAnimValItem = aIsAnimValItem;
+
+ MOZ_ASSERT(IndexIsValid(), "Bad index for DOMSVGNumber!");
+}
+
+void DOMSVGNumber::RemovingFromList() {
+ mValue = InternalItem();
+ mList = nullptr;
+ mIsAnimValItem = false;
+}
+
+float DOMSVGNumber::ToSVGNumber() {
+ return HasOwner() ? InternalItem() : mValue;
+}
+
+float& DOMSVGNumber::InternalItem() {
+ SVGAnimatedNumberList* alist = Element()->GetAnimatedNumberList(mAttrEnum);
+ return mIsAnimValItem && alist->mAnimVal ? (*alist->mAnimVal)[mListIndex]
+ : alist->mBaseVal[mListIndex];
+}
+
+#ifdef DEBUG
+bool DOMSVGNumber::IndexIsValid() {
+ SVGAnimatedNumberList* alist = Element()->GetAnimatedNumberList(mAttrEnum);
+ return (mIsAnimValItem && mListIndex < alist->GetAnimValue().Length()) ||
+ (!mIsAnimValItem && mListIndex < alist->GetBaseValue().Length());
+}
+#endif
+
+JSObject* DOMSVGNumber::WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) {
+ return SVGNumber_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace mozilla::dom