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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /dom/html/HTMLOptionsCollection.h | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/html/HTMLOptionsCollection.h')
-rw-r--r-- | dom/html/HTMLOptionsCollection.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/dom/html/HTMLOptionsCollection.h b/dom/html/HTMLOptionsCollection.h new file mode 100644 index 000000000..21123b3d2 --- /dev/null +++ b/dom/html/HTMLOptionsCollection.h @@ -0,0 +1,170 @@ +/* -*- 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_HTMLOptionsCollection_h +#define mozilla_dom_HTMLOptionsCollection_h + +#include "mozilla/Attributes.h" +#include "nsIHTMLCollection.h" +#include "nsIDOMHTMLOptionsCollection.h" +#include "nsWrapperCache.h" + +#include "mozilla/dom/HTMLOptionElement.h" +#include "mozilla/ErrorResult.h" +#include "nsCOMPtr.h" +#include "nsError.h" +#include "nsGenericHTMLElement.h" +#include "nsTArray.h" + +class nsIDOMHTMLOptionElement; + +namespace mozilla { +namespace dom { + +class HTMLElementOrLong; +class HTMLOptionElementOrHTMLOptGroupElement; +class HTMLSelectElement; + +/** + * The collection of options in the select (what you get back when you do + * select.options in DOM) + */ +class HTMLOptionsCollection final : public nsIHTMLCollection + , public nsIDOMHTMLOptionsCollection + , public nsWrapperCache +{ + typedef HTMLOptionElementOrHTMLOptGroupElement HTMLOptionOrOptGroupElement; +public: + explicit HTMLOptionsCollection(HTMLSelectElement* aSelect); + + NS_DECL_CYCLE_COLLECTING_ISUPPORTS + + // nsWrapperCache + using nsWrapperCache::GetWrapperPreserveColor; + using nsWrapperCache::GetWrapper; + virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override; +protected: + virtual ~HTMLOptionsCollection(); + + virtual JSObject* GetWrapperPreserveColorInternal() override + { + return nsWrapperCache::GetWrapperPreserveColor(); + } +public: + + // nsIDOMHTMLOptionsCollection interface + NS_DECL_NSIDOMHTMLOPTIONSCOLLECTION + + // nsIDOMHTMLCollection interface, all its methods are defined in + // nsIDOMHTMLOptionsCollection + + virtual Element* GetElementAt(uint32_t aIndex) override; + virtual nsINode* GetParentObject() override; + + NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(HTMLOptionsCollection, + nsIHTMLCollection) + + // Helpers for HTMLSelectElement + /** + * Insert an option + * @param aOption the option to insert + * @param aIndex the index to insert at + */ + void InsertOptionAt(mozilla::dom::HTMLOptionElement* aOption, uint32_t aIndex) + { + mElements.InsertElementAt(aIndex, aOption); + } + + /** + * Remove an option + * @param aIndex the index of the option to remove + */ + void RemoveOptionAt(uint32_t aIndex) + { + mElements.RemoveElementAt(aIndex); + } + + /** + * Get the option at the index + * @param aIndex the index + * @param aReturn the option returned [OUT] + */ + mozilla::dom::HTMLOptionElement* ItemAsOption(uint32_t aIndex) + { + return mElements.SafeElementAt(aIndex, nullptr); + } + + /** + * Clears out all options + */ + void Clear() + { + mElements.Clear(); + } + + /** + * Append an option to end of array + */ + void AppendOption(mozilla::dom::HTMLOptionElement* aOption) + { + mElements.AppendElement(aOption); + } + + /** + * Drop the reference to the select. Called during select destruction. + */ + void DropReference(); + + /** + * Finds the index of a given option element. + * If the option isn't part of the collection, return NS_ERROR_FAILURE + * without setting aIndex. + * + * @param aOption the option to get the index of + * @param aStartIndex the index to start looking at + * @param aForward TRUE to look forward, FALSE to look backward + * @return the option index + */ + nsresult GetOptionIndex(Element* aOption, + int32_t aStartIndex, bool aForward, + int32_t* aIndex); + + HTMLOptionElement* GetNamedItem(const nsAString& aName) + { + bool dummy; + return NamedGetter(aName, dummy); + } + HTMLOptionElement* NamedGetter(const nsAString& aName, bool& aFound); + virtual Element* + GetFirstNamedElement(const nsAString& aName, bool& aFound) override + { + return NamedGetter(aName, aFound); + } + + void Add(const HTMLOptionOrOptGroupElement& aElement, + const Nullable<HTMLElementOrLong>& aBefore, + ErrorResult& aError); + void Remove(int32_t aIndex, ErrorResult& aError); + int32_t GetSelectedIndex(ErrorResult& aError); + void SetSelectedIndex(int32_t aSelectedIndex, ErrorResult& aError); + void IndexedSetter(uint32_t aIndex, nsIDOMHTMLOptionElement* aOption, + ErrorResult& aError) + { + aError = SetOption(aIndex, aOption); + } + virtual void GetSupportedNames(nsTArray<nsString>& aNames) override; + +private: + /** The list of options (holds strong references). This is infallible, so + * various members such as InsertOptionAt are also infallible. */ + nsTArray<RefPtr<mozilla::dom::HTMLOptionElement> > mElements; + /** The select element that contains this array */ + HTMLSelectElement* mSelect; +}; + +} // namespace dom +} // namespace mozilla + +#endif // mozilla_dom_HTMLOptionsCollection_h |