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