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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/svg/SVGSwitchElement.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/svg/SVGSwitchElement.cpp')
-rw-r--r--dom/svg/SVGSwitchElement.cpp139
1 files changed, 139 insertions, 0 deletions
diff --git a/dom/svg/SVGSwitchElement.cpp b/dom/svg/SVGSwitchElement.cpp
new file mode 100644
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+++ b/dom/svg/SVGSwitchElement.cpp
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+/* -*- 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/SVGSwitchElement.h"
+
+#include "nsLayoutUtils.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/SVGUtils.h"
+#include "mozilla/dom/SVGSwitchElementBinding.h"
+
+class nsIFrame;
+
+NS_IMPL_NS_NEW_SVG_ELEMENT(Switch)
+
+namespace mozilla::dom {
+
+JSObject* SVGSwitchElement::WrapNode(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) {
+ return SVGSwitchElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+//----------------------------------------------------------------------
+// nsISupports methods
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(SVGSwitchElement, SVGSwitchElementBase,
+ mActiveChild)
+
+NS_IMPL_ADDREF_INHERITED(SVGSwitchElement, SVGSwitchElementBase)
+NS_IMPL_RELEASE_INHERITED(SVGSwitchElement, SVGSwitchElementBase)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(SVGSwitchElement)
+NS_INTERFACE_MAP_END_INHERITING(SVGSwitchElementBase)
+
+//----------------------------------------------------------------------
+// Implementation
+
+SVGSwitchElement::SVGSwitchElement(
+ already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
+ : SVGSwitchElementBase(std::move(aNodeInfo)) {}
+
+void SVGSwitchElement::MaybeInvalidate() {
+ // We must not change mActiveChild until after
+ // InvalidateAndScheduleBoundsUpdate has been called, otherwise
+ // it will not correctly invalidate the old mActiveChild area.
+
+ nsIContent* newActiveChild = FindActiveChild();
+
+ if (newActiveChild == mActiveChild) {
+ return;
+ }
+
+ nsIFrame* frame = GetPrimaryFrame();
+ if (frame) {
+ nsLayoutUtils::PostRestyleEvent(this, RestyleHint{0},
+ nsChangeHint_InvalidateRenderingObservers);
+ SVGUtils::ScheduleReflowSVG(frame);
+ }
+
+ mActiveChild = newActiveChild;
+}
+
+//----------------------------------------------------------------------
+// nsINode methods
+
+NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGSwitchElement)
+
+//----------------------------------------------------------------------
+// nsINode methods
+
+void SVGSwitchElement::InsertChildBefore(nsIContent* aKid,
+ nsIContent* aBeforeThis, bool aNotify,
+ ErrorResult& aRv) {
+ SVGSwitchElementBase::InsertChildBefore(aKid, aBeforeThis, aNotify, aRv);
+ if (aRv.Failed()) {
+ return;
+ }
+
+ MaybeInvalidate();
+}
+
+void SVGSwitchElement::RemoveChildNode(nsIContent* aKid, bool aNotify) {
+ SVGSwitchElementBase::RemoveChildNode(aKid, aNotify);
+ MaybeInvalidate();
+}
+
+//----------------------------------------------------------------------
+// Implementation Helpers:
+
+nsIContent* SVGSwitchElement::FindActiveChild() const {
+ nsAutoString acceptLangs;
+ Preferences::GetLocalizedString("intl.accept_languages", acceptLangs);
+
+ int32_t bestLanguagePreferenceRank = -1;
+ nsIContent* bestChild = nullptr;
+ nsIContent* defaultChild = nullptr;
+ for (nsIContent* child = nsINode::GetFirstChild(); child;
+ child = child->GetNextSibling()) {
+ if (!child->IsElement()) {
+ continue;
+ }
+ nsCOMPtr<SVGTests> tests(do_QueryInterface(child));
+ if (tests) {
+ if (tests->PassesConditionalProcessingTestsIgnoringSystemLanguage()) {
+ int32_t languagePreferenceRank =
+ tests->GetBestLanguagePreferenceRank(acceptLangs);
+ switch (languagePreferenceRank) {
+ case 0:
+ // best possible match
+ return child;
+ case -1:
+ // no match
+ break;
+ case -2:
+ // no systemLanguage attribute. If there's nothing better
+ // we'll use the first such child.
+ if (!defaultChild) {
+ defaultChild = child;
+ }
+ break;
+ default:
+ if (bestLanguagePreferenceRank == -1 ||
+ languagePreferenceRank < bestLanguagePreferenceRank) {
+ bestLanguagePreferenceRank = languagePreferenceRank;
+ bestChild = child;
+ }
+ break;
+ }
+ }
+ } else if (!bestChild) {
+ bestChild = child;
+ }
+ }
+ return bestChild ? bestChild : defaultChild;
+}
+
+} // namespace mozilla::dom