mirror of
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135 lines
4.0 KiB
C++
135 lines
4.0 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 nsPluginArray_h___
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#define nsPluginArray_h___
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#include "nsWeakReference.h"
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#include "nsWrapperCache.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "nsTArray.h"
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#include "mozilla/Array.h"
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class nsPIDOMWindowInner;
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class nsPluginElement;
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class nsMimeTypeArray;
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class nsMimeType;
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/**
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* Array class backing HTML's navigator.plugins. This always holds references
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* to the hard-coded set of PDF plugins defined by HTML but it only consults
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* them if "pdfjs.disabled" is false. There is never more than one of these
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* per DOM window.
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*/
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class nsPluginArray final : public nsSupportsWeakReference,
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public nsWrapperCache {
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(nsPluginArray)
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explicit nsPluginArray(nsPIDOMWindowInner* aWindow);
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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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nsMimeTypeArray* MimeTypeArray() { return mMimeTypeArray; }
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// PluginArray WebIDL methods
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uint32_t Length() { return ForceNoPlugins() ? 0 : ArrayLength(mPlugins); }
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nsPluginElement* 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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nsPluginElement* 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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nsPluginElement* IndexedGetter(uint32_t aIndex, bool& aFound);
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nsPluginElement* NamedGetter(const nsAString& aName, bool& aFound);
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void GetSupportedNames(nsTArray<nsString>& aRetval);
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void Refresh() {}
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private:
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virtual ~nsPluginArray();
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bool ForceNoPlugins();
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RefPtr<nsMimeTypeArray> mMimeTypeArray;
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nsCOMPtr<nsPIDOMWindowInner> mWindow;
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mozilla::Array<RefPtr<nsPluginElement>, 5> mPlugins;
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};
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/**
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* Plugin class backing entries in HTML's navigator.plugins array. There is
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* a fixed set of these, as defined by HTML.
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*/
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class nsPluginElement final : public nsISupports, public nsWrapperCache {
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(nsPluginElement)
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explicit nsPluginElement(nsPluginArray* aPluginArray,
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nsPIDOMWindowInner* aWindow, const nsAString& aName);
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nsPluginArray* GetParentObject() const;
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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// Plugin WebIDL methods
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void GetDescription(nsString& retval) const { retval = kDescription; }
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void GetFilename(nsString& retval) const { retval = kFilename; }
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void GetName(nsString& retval) const { retval = mName; }
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const nsString& Name() const { return mName; }
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nsMimeType* Item(uint32_t index) {
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bool unused;
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return IndexedGetter(index, unused);
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}
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nsMimeType* NamedItem(const nsAString& name) {
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bool unused;
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return NamedGetter(name, unused);
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}
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uint32_t Length();
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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 ~nsPluginElement() = default;
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nsMimeTypeArray* MimeTypeArray() { return mPluginArray->MimeTypeArray(); }
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static constexpr nsLiteralString kDescription =
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u"Portable Document Format"_ns;
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static constexpr nsLiteralString kFilename = u"internal-pdf-viewer"_ns;
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// Note that this creates an explicit reference cycle:
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//
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// nsPluginElement -> nsPluginArray -> nsPluginElement
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//
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// We rely on the cycle collector to break this cycle.
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RefPtr<nsPluginArray> mPluginArray;
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nsCOMPtr<nsPIDOMWindowInner> mWindow;
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nsString mName;
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};
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#endif /* nsPluginArray_h___ */
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