forked from mirrors/gecko-dev
114 lines
3.5 KiB
C++
114 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsMimeTypeArray_h___
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#define nsMimeTypeArray_h___
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#include "nsWrapperCache.h"
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#include "nsCOMPtr.h"
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#include "nsPIDOMWindow.h"
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#include "nsTArray.h"
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#include "mozilla/dom/BindingDeclarations.h"
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class nsMimeType;
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class nsPluginElement;
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/**
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* Array class backing HTML's navigator.mimeTypes. This always holds
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* references to the hard-coded set of PDF MIME types defined by HTML but it
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* only consults them if "pdfjs.disabled" is false. There is never more
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* than one of these per DOM window.
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*/
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class nsMimeTypeArray final : public nsISupports, public nsWrapperCache {
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public:
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nsMimeTypeArray(nsPIDOMWindowInner* aWindow,
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const mozilla::Array<RefPtr<nsMimeType>, 2>& aMimeTypes);
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(nsMimeTypeArray)
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nsPIDOMWindowInner* GetParentObject() const;
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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// MimeTypeArray WebIDL methods
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uint32_t Length() { return ForceNoPlugins() ? 0 : ArrayLength(mMimeTypes); }
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nsMimeType* Item(uint32_t aIndex) {
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bool unused;
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return IndexedGetter(aIndex, unused);
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}
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nsMimeType* NamedItem(const nsAString& aName) {
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bool unused;
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return NamedGetter(aName, unused);
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}
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nsMimeType* IndexedGetter(uint32_t index, bool& found);
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nsMimeType* NamedGetter(const nsAString& name, bool& found);
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void GetSupportedNames(nsTArray<nsString>& retval);
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protected:
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virtual ~nsMimeTypeArray();
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bool ForceNoPlugins();
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nsCOMPtr<nsPIDOMWindowInner> mWindow;
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mozilla::Array<RefPtr<nsMimeType>, 2> mMimeTypes;
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};
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/**
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* Mime type class backing entries in HTML's navigator.mimeTypes array. There
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* is a fixed set of these, as defined by HTML.
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*/
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class nsMimeType final : public nsWrapperCache {
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public:
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NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(nsMimeType)
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NS_DECL_CYCLE_COLLECTION_NATIVE_WRAPPERCACHE_CLASS(nsMimeType)
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nsMimeType(nsPluginElement* aPluginElement, const nsAString& aName);
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nsPluginElement* GetParentObject() const { return mPluginElement; }
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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// MimeType WebIDL methods
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void GetDescription(mozilla::dom::DOMString& retval) const {
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retval.SetKnownLiveString(kMimeDescription);
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}
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already_AddRefed<nsPluginElement> EnabledPlugin() const {
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return do_AddRef(mPluginElement);
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}
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void GetSuffixes(mozilla::dom::DOMString& retval) const {
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retval.SetKnownLiveString(kMimeSuffix);
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}
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void GetType(nsString& retval) const { retval = mName; }
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const nsString& Name() const { return mName; }
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protected:
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virtual ~nsMimeType();
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static constexpr nsLiteralString kMimeDescription =
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u"Portable Document Format"_ns;
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static constexpr nsLiteralString kMimeSuffix = u"pdf"_ns;
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// Note that this creates an explicit reference cycle:
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//
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// nsMimeType -> nsPluginElement -> nsPluginArray ->
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// nsMimeTypeArray -> nsMimeType
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//
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// We rely on the cycle collector to break this cycle.
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RefPtr<nsPluginElement> mPluginElement;
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nsString mName;
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};
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#endif /* nsMimeTypeArray_h___ */
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