1 files changed, 207 insertions, 0 deletions
diff --git a/dom/html/HTMLOptionsCollection.cpp b/dom/html/HTMLOptionsCollection.cpp
new file mode 100644
index 0000000000..df2dcaf8a8
--- /dev/null
+++ b/dom/html/HTMLOptionsCollection.cpp
@@ -0,0 +1,207 @@
+/* -*- 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/HTMLOptionsCollection.h"
+
+#include "HTMLOptGroupElement.h"
+#include "mozAutoDocUpdate.h"
+#include "mozilla/dom/BindingUtils.h"
+#include "mozilla/dom/Element.h"
+#include "mozilla/MappedDeclarations.h"
+#include "mozilla/dom/HTMLFormSubmission.h"
+#include "mozilla/dom/HTMLOptionElement.h"
+#include "mozilla/dom/HTMLOptionsCollectionBinding.h"
+#include "mozilla/dom/HTMLSelectElement.h"
+#include "nsContentCreatorFunctions.h"
+#include "nsError.h"
+#include "nsGkAtoms.h"
+#include "mozilla/dom/Document.h"
+#include "nsIFormControlFrame.h"
+#include "nsLayoutUtils.h"
+#include "nsMappedAttributes.h"
+#include "nsServiceManagerUtils.h"
+#include "nsStyleConsts.h"
+#include "jsfriendapi.h"
+
+namespace mozilla::dom {
+
+HTMLOptionsCollection::HTMLOptionsCollection(HTMLSelectElement* aSelect)
+    : mSelect(aSelect) {}
+
+nsresult HTMLOptionsCollection::GetOptionIndex(Element* aOption,
+                                               int32_t aStartIndex,
+                                               bool aForward, int32_t* aIndex) {
+  // NOTE: aIndex shouldn't be set if the returned value isn't NS_OK.
+
+  int32_t index;
+
+  // Make the common case fast
+  if (aStartIndex == 0 && aForward) {
+    index = mElements.IndexOf(aOption);
+    if (index == -1) {
+      return NS_ERROR_FAILURE;
+    }
+
+    *aIndex = index;
+    return NS_OK;
+  }
+
+  int32_t high = mElements.Length();
+  int32_t step = aForward ? 1 : -1;
+
+  for (index = aStartIndex; index < high && index > -1; index += step) {
+    if (mElements[index] == aOption) {
+      *aIndex = index;
+      return NS_OK;
+    }
+  }
+
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(HTMLOptionsCollection, mElements, mSelect)
+
+// nsISupports
+
+// QueryInterface implementation for HTMLOptionsCollection
+NS_INTERFACE_TABLE_HEAD(HTMLOptionsCollection)
+  NS_WRAPPERCACHE_INTERFACE_TABLE_ENTRY
+  NS_INTERFACE_TABLE(HTMLOptionsCollection, nsIHTMLCollection)
+  NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(HTMLOptionsCollection)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(HTMLOptionsCollection)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(HTMLOptionsCollection)
+
+JSObject* HTMLOptionsCollection::WrapObject(JSContext* aCx,
+                                            JS::Handle<JSObject*> aGivenProto) {
+  return HTMLOptionsCollection_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+uint32_t HTMLOptionsCollection::Length() { return mElements.Length(); }
+
+void HTMLOptionsCollection::SetLength(uint32_t aLength, ErrorResult& aError) {
+  mSelect->SetLength(aLength, aError);
+}
+
+void HTMLOptionsCollection::IndexedSetter(uint32_t aIndex,
+                                          HTMLOptionElement* aOption,
+                                          ErrorResult& aError) {
+  // if the new option is null, just remove this option.  Note that it's safe
+  // to pass a too-large aIndex in here.
+  if (!aOption) {
+    mSelect->Remove(aIndex);
+
+    // We're done.
+    return;
+  }
+
+  // Now we're going to be setting an option in our collection
+  if (aIndex > mElements.Length()) {
+    // Fill our array with blank options up to (but not including, since we're
+    // about to change it) aIndex, for compat with other browsers.
+    SetLength(aIndex, aError);
+    ENSURE_SUCCESS_VOID(aError);
+  }
+
+  NS_ASSERTION(aIndex <= mElements.Length(), "SetLength lied");
+
+  if (aIndex == mElements.Length()) {
+    mSelect->AppendChild(*aOption, aError);
+    return;
+  }
+
+  // Find the option they're talking about and replace it
+  // hold a strong reference to follow COM rules.
+  RefPtr<HTMLOptionElement> refChild = ItemAsOption(aIndex);
+  if (!refChild) {
+    aError.Throw(NS_ERROR_UNEXPECTED);
+    return;
+  }
+
+  nsCOMPtr<nsINode> parent = refChild->GetParent();
+  if (!parent) {
+    return;
+  }
+
+  parent->ReplaceChild(*aOption, *refChild, aError);
+}
+
+int32_t HTMLOptionsCollection::SelectedIndex() {
+  return mSelect->SelectedIndex();
+}
+
+void HTMLOptionsCollection::SetSelectedIndex(int32_t aSelectedIndex) {
+  mSelect->SetSelectedIndex(aSelectedIndex);
+}
+
+Element* HTMLOptionsCollection::GetElementAt(uint32_t aIndex) {
+  return ItemAsOption(aIndex);
+}
+
+HTMLOptionElement* HTMLOptionsCollection::NamedGetter(const nsAString& aName,
+                                                      bool& aFound) {
+  uint32_t count = mElements.Length();
+  for (uint32_t i = 0; i < count; i++) {
+    HTMLOptionElement* content = mElements.ElementAt(i);
+    if (content && (content->AttrValueIs(kNameSpaceID_None, nsGkAtoms::name,
+                                         aName, eCaseMatters) ||
+                    content->AttrValueIs(kNameSpaceID_None, nsGkAtoms::id,
+                                         aName, eCaseMatters))) {
+      aFound = true;
+      return content;
+    }
+  }
+
+  aFound = false;
+  return nullptr;
+}
+
+nsINode* HTMLOptionsCollection::GetParentObject() { return mSelect; }
+
+DocGroup* HTMLOptionsCollection::GetDocGroup() const {
+  return mSelect ? mSelect->GetDocGroup() : nullptr;
+}
+
+void HTMLOptionsCollection::GetSupportedNames(nsTArray<nsString>& aNames) {
+  AutoTArray<nsAtom*, 8> atoms;
+  for (uint32_t i = 0; i < mElements.Length(); ++i) {
+    HTMLOptionElement* content = mElements.ElementAt(i);
+    if (content) {
+      // Note: HasName means the names is exposed on the document,
+      // which is false for options, so we don't check it here.
+      const nsAttrValue* val = content->GetParsedAttr(nsGkAtoms::name);
+      if (val && val->Type() == nsAttrValue::eAtom) {
+        nsAtom* name = val->GetAtomValue();
+        if (!atoms.Contains(name)) {
+          atoms.AppendElement(name);
+        }
+      }
+      if (content->HasID()) {
+        nsAtom* id = content->GetID();
+        if (!atoms.Contains(id)) {
+          atoms.AppendElement(id);
+        }
+      }
+    }
+  }
+
+  uint32_t atomsLen = atoms.Length();
+  nsString* names = aNames.AppendElements(atomsLen);
+  for (uint32_t i = 0; i < atomsLen; ++i) {
+    atoms[i]->ToString(names[i]);
+  }
+}
+
+void HTMLOptionsCollection::Add(const HTMLOptionOrOptGroupElement& aElement,
+                                const Nullable<HTMLElementOrLong>& aBefore,
+                                ErrorResult& aError) {
+  mSelect->Add(aElement, aBefore, aError);
+}
+
+void HTMLOptionsCollection::Remove(int32_t aIndex) { mSelect->Remove(aIndex); }
+
+}  // namespace mozilla::dom