forked from mirrors/gecko-dev
cd6fd9bfe5
This is the second of two patches in this series that removes a large amount of now dead code from dom/plugins as part of removing all NPAPI plugin support. Differential Revision: https://phabricator.services.mozilla.com/D107150
111 lines
4.1 KiB
C++
111 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 nsPluginHost_h_
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#define nsPluginHost_h_
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#include "mozilla/StaticPtr.h"
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#include "nsCOMPtr.h"
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#include "prlink.h"
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#include "nsIPluginTag.h"
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#include "nsWeakReference.h"
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#include "nsTArray.h"
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#include "nsPluginTags.h"
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class nsIFile;
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class nsPluginHost final : public nsSupportsWeakReference {
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friend class nsFakePluginTag;
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virtual ~nsPluginHost();
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public:
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nsPluginHost();
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static already_AddRefed<nsPluginHost> GetInst();
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NS_DECL_ISUPPORTS
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// Acts like a bitfield
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enum PluginFilter { eExcludeNone, eExcludeDisabled, eExcludeFake };
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NS_IMETHOD GetPluginTagForType(const nsACString& aMimeType,
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uint32_t aExcludeFlags,
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nsIPluginTag** aResult);
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NS_IMETHOD GetPermissionStringForTag(nsIPluginTag* aTag,
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uint32_t aExcludeFlags,
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nsACString& aPermissionString);
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// FIXME-jsplugins comment about fake
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bool HavePluginForType(const nsACString& aMimeType,
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PluginFilter aFilter = eExcludeDisabled);
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void GetPlugins(nsTArray<nsCOMPtr<nsIInternalPluginTag>>& aPluginArray,
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bool aIncludeDisabled = false);
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/**
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* Returns true if a plugin can be used to load the requested MIME type. Used
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* for short circuiting before sending things to plugin code.
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*/
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static bool CanUsePluginForMIMEType(const nsACString& aMIMEType);
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// checks whether aType is a type we recognize for potential special handling
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enum SpecialType {
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eSpecialType_None,
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// Needed to whitelist for async init support
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eSpecialType_Test,
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// Informs some decisions about OOP and quirks
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eSpecialType_Flash
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};
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static SpecialType GetSpecialType(const nsACString& aMIMEType);
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private:
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// Find a plugin for the given type. If aIncludeFake is true a fake plugin
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// will be preferred if one exists; otherwise a fake plugin will never be
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// returned. If aCheckEnabled is false, disabled plugins can be returned.
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nsIInternalPluginTag* FindPluginForType(const nsACString& aMimeType,
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bool aIncludeFake,
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bool aCheckEnabled);
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// Find specifically a fake plugin for the given type. If aCheckEnabled is
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// false, disabled plugins can be returned.
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nsFakePluginTag* FindFakePluginForType(const nsACString& aMimeType,
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bool aCheckEnabled);
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// Find specifically a fake plugin for the given extension. If aCheckEnabled
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// is false, disabled plugins can be returned. aMimeType will be filled in
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// with the MIME type the plugin is registered for.
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nsFakePluginTag* FindFakePluginForExtension(const nsACString& aExtension,
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/* out */ nsACString& aMimeType,
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bool aCheckEnabled);
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// Checks to see if a tag object is in our list of live tags.
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bool IsLiveTag(nsIPluginTag* tag);
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// To be used by the chrome process whenever the set of plugins changes.
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void IncrementChromeEpoch();
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// To be used by the chrome process; returns the current epoch.
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uint32_t ChromeEpoch();
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// To be used by the content process to get/set the last observed epoch value
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// from the chrome process.
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uint32_t ChromeEpochForContent();
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void SetChromeEpochForContent(uint32_t aEpoch);
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nsTArray<RefPtr<nsFakePluginTag>> mFakePlugins;
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// This epoch increases each time we load the list of plugins from disk.
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// In the chrome process, this stores the actual epoch.
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// In the content process, this stores the last epoch value observed
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// when reading plugins from chrome.
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uint32_t mPluginEpoch;
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// We need to hold a global ptr to ourselves because we register for
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// two different CIDs for some reason...
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static mozilla::StaticRefPtr<nsPluginHost> sInst;
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};
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#endif // nsPluginHost_h_
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