gecko-dev/dom/html/HTMLSlotElement.h
Emilio Cobos Álvarez 6917a38081 Bug 1555216 - Change the signature of BindToTree to be (BindContext&, nsINode& aParentNode). r=bzbarsky
BindContext was going to have way more information at first, but then I realized
that most of the things I wanted to know were basically a flag away using the
parent node.

Still I think it's worth it, now experimenting with BindToTree will only mean
adding a field to a struct that's included from a couple cpp files, instead of a
massive pain.

I also think this is clearer, and doing this highlights quite a few
inconsistencies in our code which I've left untouched, but commented with
FIXMEs.

Steps are:

$ for file in $(rg 'nsresult BindToTree\(' | cut -d : -f 1 | sort | uniq); do sed -i 's#nsresult BindToTree(Document\* aDocument, nsIContent\* aParent,#nsresult BindToTree(BindContext\&, nsINode\& aParent)#g' $file; done
$ for file in $(rg 'nsresult BindToTree\(' | cut -d : -f 1 | sort | uniq); do sed -i 's#                      nsIContent\* aBindingParent) override#override#g' $file; done
$ for file in $(rg '::BindToTree\(' | cut -d : -f 1 | sort | uniq); do sed -i 's#::BindToTree(Document\* aDocument, nsIContent\* aParent,#::BindToTree(BindContext\& aContext, nsINode\& aParent)#g' $file; done
$ for file in $(rg '::BindToTree\(' | cut -d : -f 1 | sort | uniq); do sed -i 's#nsIContent\* aBindingParent)##g' $file; done
$ for file in $(rg '::BindToTree\(' | cut -d : -f 1 | sort | uniq); do sed -i 's#::BindToTree(aDocument, aParent, aBindingParent)#::BindToTree(aContext, aParent)#g' $file; done
$ ./mach clang-format

Then manual fixups.

Depends on D32948

Differential Revision: https://phabricator.services.mozilla.com/D32949
2019-05-31 23:31:52 +02:00

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C++

/* -*- 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/. */
#ifndef mozilla_dom_HTMLSlotElement_h
#define mozilla_dom_HTMLSlotElement_h
#include "nsGenericHTMLElement.h"
#include "nsTArray.h"
namespace mozilla {
namespace dom {
struct AssignedNodesOptions;
class HTMLSlotElement final : public nsGenericHTMLElement {
public:
explicit HTMLSlotElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLSlotElement, slot)
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLSlotElement,
nsGenericHTMLElement)
virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
// nsIContent
virtual nsresult BindToTree(BindContext&, nsINode& aParent) override;
virtual void UnbindFromTree(bool aNullParent) override;
virtual nsresult BeforeSetAttr(int32_t aNameSpaceID, nsAtom* aName,
const nsAttrValueOrString* aValue,
bool aNotify) override;
virtual nsresult AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal,
bool aNotify) override;
// WebIDL
void SetName(const nsAString& aName, ErrorResult& aRv) {
SetHTMLAttr(nsGkAtoms::name, aName, aRv);
}
void GetName(nsAString& aName) { GetHTMLAttr(nsGkAtoms::name, aName); }
void AssignedNodes(const AssignedNodesOptions& aOptions,
nsTArray<RefPtr<nsINode>>& aNodes);
void AssignedElements(const AssignedNodesOptions& aOptions,
nsTArray<RefPtr<Element>>& aNodes);
// Helper methods
const nsTArray<RefPtr<nsINode>>& AssignedNodes() const;
void InsertAssignedNode(uint32_t aIndex, nsINode* aNode);
void AppendAssignedNode(nsINode* aNode);
void RemoveAssignedNode(nsINode* aNode);
void ClearAssignedNodes();
void EnqueueSlotChangeEvent();
void RemovedFromSignalSlotList() {
MOZ_ASSERT(mInSignalSlotList);
mInSignalSlotList = false;
}
void FireSlotChangeEvent();
protected:
virtual ~HTMLSlotElement();
JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) final;
nsTArray<RefPtr<nsINode>> mAssignedNodes;
// Whether we're in the signal slot list of our unit of related similar-origin
// browsing contexts.
//
// https://dom.spec.whatwg.org/#signal-slot-list
bool mInSignalSlotList = false;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_HTMLSlotElement_h