import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

uriloader/exthandler/uikit/nsOSHelperAppService.h

@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim:expandtab:shiftwidth=2:tabstop=2:cin:
+ * 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 nsOSHelperAppService_h__
+#define nsOSHelperAppService_h__
+
+// The OS helper app service is a subclass of nsExternalHelperAppService and
+// is implemented on each platform. It contains platform specific code for
+// finding helper applications for a given mime type in addition to launching
+// those applications. This is the UIKit version.
+
+#include "nsExternalHelperAppService.h"
+#include "nsCExternalHandlerService.h"
+#include "nsCOMPtr.h"
+
+class nsOSHelperAppService final : public nsExternalHelperAppService
+{
+public:
+  nsOSHelperAppService();
+  ~nsOSHelperAppService();
+
+  // override nsIExternalProtocolService methods
+  NS_IMETHOD GetApplicationDescription(const nsACString& aScheme,
+                                       nsAString& _retval);
+
+  // method overrides --> used to hook the mime service into internet config....
+  NS_IMETHOD GetFromTypeAndExtension(const nsACString& aType,
+                                     const nsACString& aFileExt,
+                                     nsIMIMEInfo** aMIMEInfo);
+  already_AddRefed<nsIMIMEInfo> GetMIMEInfoFromOS(const nsACString& aMIMEType,
+                                                  const nsACString& aFileExt,
+                                                  bool* aFound);
+  NS_IMETHOD GetProtocolHandlerInfoFromOS(const nsACString& aScheme,
+                                          bool* found,
+                                          nsIHandlerInfo** _retval);
+
+  // GetFileTokenForPath must be implemented by each platform.
+  // platformAppPath --> a platform specific path to an application that we got
+  //                     out of the rdf data source. This can be a mac file
+  //                     spec, a unix path or a windows path depending on the
+  //                     platform
+  // aFile --> an nsIFile representation of that platform application path.
+  virtual nsresult GetFileTokenForPath(const char16_t* platformAppPath,
+                                       nsIFile** aFile);
+
+  nsresult OSProtocolHandlerExists(const char* aScheme, bool* aHandlerExists);
+};
+
+#endif // nsOSHelperAppService_h__