1 files changed, 111 insertions, 0 deletions
diff --git a/dom/plugins/base/nsPluginHost.h b/dom/plugins/base/nsPluginHost.h
new file mode 100644
index 0000000000..6566e979f3
--- /dev/null
+++ b/dom/plugins/base/nsPluginHost.h
@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 nsPluginHost_h_
+#define nsPluginHost_h_
+
+#include "mozilla/StaticPtr.h"
+
+#include "nsCOMPtr.h"
+#include "prlink.h"
+#include "nsIPluginTag.h"
+#include "nsWeakReference.h"
+#include "nsTArray.h"
+#include "nsPluginTags.h"
+
+class nsIFile;
+
+class nsPluginHost final : public nsSupportsWeakReference {
+  friend class nsFakePluginTag;
+  virtual ~nsPluginHost();
+
+ public:
+  nsPluginHost();
+
+  static already_AddRefed<nsPluginHost> GetInst();
+
+  NS_DECL_ISUPPORTS
+
+  // Acts like a bitfield
+  enum PluginFilter { eExcludeNone, eExcludeDisabled, eExcludeFake };
+
+  NS_IMETHOD GetPluginTagForType(const nsACString& aMimeType,
+                                 uint32_t aExcludeFlags,
+                                 nsIPluginTag** aResult);
+  NS_IMETHOD GetPermissionStringForTag(nsIPluginTag* aTag,
+                                       uint32_t aExcludeFlags,
+                                       nsACString& aPermissionString);
+
+  // FIXME-jsplugins comment about fake
+  bool HavePluginForType(const nsACString& aMimeType,
+                         PluginFilter aFilter = eExcludeDisabled);
+
+  void GetPlugins(nsTArray<nsCOMPtr<nsIInternalPluginTag>>& aPluginArray,
+                  bool aIncludeDisabled = false);
+
+  /**
+   * Returns true if a plugin can be used to load the requested MIME type. Used
+   * for short circuiting before sending things to plugin code.
+   */
+  static bool CanUsePluginForMIMEType(const nsACString& aMIMEType);
+
+  // checks whether aType is a type we recognize for potential special handling
+  enum SpecialType {
+    eSpecialType_None,
+    // Needed to whitelist for async init support
+    eSpecialType_Test,
+    // Informs some decisions about OOP and quirks
+    eSpecialType_Flash
+  };
+  static SpecialType GetSpecialType(const nsACString& aMIMEType);
+
+ private:
+  // Find a plugin for the given type.  If aIncludeFake is true a fake plugin
+  // will be preferred if one exists; otherwise a fake plugin will never be
+  // returned.  If aCheckEnabled is false, disabled plugins can be returned.
+  nsIInternalPluginTag* FindPluginForType(const nsACString& aMimeType,
+                                          bool aIncludeFake,
+                                          bool aCheckEnabled);
+
+  // Find specifically a fake plugin for the given type.  If aCheckEnabled is
+  // false, disabled plugins can be returned.
+  nsFakePluginTag* FindFakePluginForType(const nsACString& aMimeType,
+                                         bool aCheckEnabled);
+
+  // Find specifically a fake plugin for the given extension.  If aCheckEnabled
+  // is false, disabled plugins can be returned.  aMimeType will be filled in
+  // with the MIME type the plugin is registered for.
+  nsFakePluginTag* FindFakePluginForExtension(const nsACString& aExtension,
+                                              /* out */ nsACString& aMimeType,
+                                              bool aCheckEnabled);
+
+  // Checks to see if a tag object is in our list of live tags.
+  bool IsLiveTag(nsIPluginTag* tag);
+
+  // To be used by the chrome process whenever the set of plugins changes.
+  void IncrementChromeEpoch();
+
+  // To be used by the chrome process; returns the current epoch.
+  uint32_t ChromeEpoch();
+
+  // To be used by the content process to get/set the last observed epoch value
+  // from the chrome process.
+  uint32_t ChromeEpochForContent();
+  void SetChromeEpochForContent(uint32_t aEpoch);
+
+  nsTArray<RefPtr<nsFakePluginTag>> mFakePlugins;
+
+  // This epoch increases each time we load the list of plugins from disk.
+  // In the chrome process, this stores the actual epoch.
+  // In the content process, this stores the last epoch value observed
+  // when reading plugins from chrome.
+  uint32_t mPluginEpoch;
+
+  // We need to hold a global ptr to ourselves because we register for
+  // two different CIDs for some reason...
+  static mozilla::StaticRefPtr<nsPluginHost> sInst;
+};
+
+#endif  // nsPluginHost_h_