Jan-Niklas Jaeschke
698326402c
Differential Revision: https://phabricator.services.mozilla.com/D315272
109 lines
3.9 KiB
C++
109 lines
3.9 KiB
C++
/* 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 "HTMLSelectedContentElement.h"
|
|
|
|
#include "mozilla/StaticPrefs_dom.h"
|
|
#include "mozilla/dom/BindContext.h"
|
|
#include "mozilla/dom/HTMLOptionElement.h"
|
|
#include "mozilla/dom/HTMLSelectElement.h"
|
|
#include "mozilla/dom/HTMLSelectedContentElementBinding.h"
|
|
#include "nsGenericHTMLElement.h"
|
|
|
|
nsGenericHTMLElement* NS_NewHTMLSelectedContentElement(
|
|
already_AddRefed<mozilla::dom::NodeInfo> aNodeInfo,
|
|
mozilla::dom::FromParser aFromParser) {
|
|
if (!mozilla::StaticPrefs::dom_select_customizable_select_enabled()) {
|
|
return NS_NewHTMLElement(std::move(aNodeInfo), aFromParser);
|
|
}
|
|
RefPtr<mozilla::dom::NodeInfo> nodeInfo(aNodeInfo);
|
|
auto* nim = nodeInfo->NodeInfoManager();
|
|
MOZ_ASSERT(nim);
|
|
return new (nim) mozilla::dom::HTMLSelectedContentElement(nodeInfo.forget());
|
|
}
|
|
|
|
namespace mozilla::dom {
|
|
|
|
HTMLSelectedContentElement::HTMLSelectedContentElement(
|
|
already_AddRefed<class NodeInfo> aNodeInfo)
|
|
: nsGenericHTMLElement(std::move(aNodeInfo)) {}
|
|
|
|
HTMLSelectedContentElement::~HTMLSelectedContentElement() = default;
|
|
|
|
NS_IMPL_ELEMENT_CLONE(HTMLSelectedContentElement)
|
|
|
|
JSObject* HTMLSelectedContentElement::WrapNode(
|
|
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
|
|
return HTMLSelectedContentElement_Binding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
// https://html.spec.whatwg.org/#clear-a-selectedcontent
|
|
void HTMLSelectedContentElement::ClearContent() {
|
|
// 1. If selectedcontent is disabled, then return.
|
|
if (mDisabled) {
|
|
return;
|
|
}
|
|
// 2. Replace all with null within selectedcontent.
|
|
ReplaceChildren(nullptr, IgnoreErrors());
|
|
}
|
|
|
|
// https://html.spec.whatwg.org/#the-selectedcontent-element
|
|
nsresult HTMLSelectedContentElement::BindToTree(BindContext& aContext,
|
|
nsINode& aParent) {
|
|
nsresult rv = nsGenericHTMLElement::BindToTree(aContext, aParent);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// The selectedcontent HTML element insertion steps, given selectedcontent:
|
|
|
|
// 1. Let nearestSelectAncestor be null.
|
|
HTMLSelectElement* nearestSelectAncestor = nullptr;
|
|
|
|
// 2. Set selectedcontent's disabled to false.
|
|
SetDisabled(false);
|
|
|
|
// 3. For each ancestor of selectedcontent's ancestors, in reverse tree order:
|
|
for (nsINode* ancestor = &aParent; ancestor;
|
|
ancestor = ancestor->GetParent()) {
|
|
// 3.1 If ancestor is a select element:
|
|
if (auto* select = HTMLSelectElement::FromNode(ancestor)) {
|
|
// 3.1.1 If nearestSelectAncestor is null, then set
|
|
// nearestSelectAncestor to select and continue.
|
|
if (!nearestSelectAncestor) {
|
|
nearestSelectAncestor = select;
|
|
continue;
|
|
}
|
|
// 3.1.2 Set selectedcontent's disabled to true and break.
|
|
SetDisabled(true);
|
|
break;
|
|
}
|
|
|
|
// 3.2 If ancestor is an option element or a selectedcontent element, then
|
|
// set selectedcontent's disabled to true and break.
|
|
if (ancestor->IsAnyOfHTMLElements(nsGkAtoms::option,
|
|
nsGkAtoms::selectedcontent)) {
|
|
SetDisabled(true);
|
|
break;
|
|
}
|
|
}
|
|
|
|
// The selectedcontent HTML element post-connection steps, given
|
|
// selectedcontent.
|
|
// Note: nearestSelectAncestor is already computed above so we
|
|
// skip the ancestor walk (PR #12263 steps 1-2 of post-connection repeat it).
|
|
|
|
// 3. If selectedcontent's disabled is true, nearestSelectAncestor is null, or
|
|
// nearestSelectAncestor has the multiple attribute, then return.
|
|
// 4. Update a selectedcontent given nearestSelectAncestor and
|
|
// selectedcontent.
|
|
if (aContext.InComposedDoc() && nearestSelectAncestor && !mDisabled &&
|
|
!nearestSelectAncestor->Multiple()) {
|
|
nearestSelectAncestor->ScheduleSelectedContentUpdate(
|
|
SelectedContentUpdateMode::ScriptRunner);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace mozilla::dom
|