1 files changed, 93 insertions, 0 deletions
diff --git a/mailnews/news/public/nsINNTPNewsgroupList.idl b/mailnews/news/public/nsINNTPNewsgroupList.idl
new file mode 100644
index 000000000..537293c44
--- /dev/null
+++ b/mailnews/news/public/nsINNTPNewsgroupList.idl
@@ -0,0 +1,93 @@
+/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+#include "nsISupports.idl"
+
+interface nsIMsgNewsFolder;
+interface nsINntpUrl;
+interface nsIMsgWindow;
+
+/**
+ * A utility class for nsINNTPProtocol that handles the list of new headers.
+ */
+[scriptable, uuid(579aa17b-4c77-465d-8eb6-feaa927cb19c)]
+interface nsINNTPNewsgroupList : nsISupports {
+  
+  void initialize(in nsINntpUrl runningURL, in nsIMsgNewsFolder newsFolder);
+  
+  long getRangeOfArtsToDownload(in nsIMsgWindow aMsgWindow, in long first_message,
+                                in long last_message,
+                                in long maxextra,
+                                out long real_first_message,
+                                out long real_last_message);
+  
+  void addToKnownArticles(in long first_message, in long last_message);
+
+  /**
+   * Initializes the internal state to get the messages.
+   *
+   * This method should be called before sending the line
+   * <tt>XOVER @arg first_message-@arg last_message</tt> to the server.
+   *
+   * @param first_message  The first message of the download range.
+   * @param last_message   The last message of the download range.
+   */
+  void initXOVER(in long first_message, in long last_message);  
+  void processXOVERLINE(in string line, out unsigned long status);
+  void resetXOVER();
+  void finishXOVERLINE(in long status, out long newstatus);
+
+  /**
+   * Initalizes the state in preparation for a call to XHDR.
+   *
+   * @return               The next header to get, or an empty string if done.
+   */
+  ACString initXHDR();
+  /**
+   * Processes a line of the server's response to XHDR.
+   *
+   * It will calculate the message number and other information itself, so the
+   * unadulterated line itself should be sent.
+   *
+   * @param aLine          The line as sent from the server.
+   */
+  void processXHDRLine(in ACString aLine);
+
+  /**
+   * Initalizes the internal state to process a HEAD command.
+   *
+   * This method should be called before sending the line
+   * <tt>HEAD @arg aMessage</tt> to the server.
+   *
+   * @param aMessage       The message number that will be sent.
+   */
+  void initHEAD(in long aMessage);
+  /**
+   * Processes a line of the server's response to HEAD.
+   *
+   * This will not check for a quoted '.' at the beginning.
+   *
+   * @param aLine          The line the server sent.
+   */
+  void processHEADLine(in ACString aLine);
+  /**
+   * Manages the internal state if the call to HEAD failed.
+   *
+   * @param aMessage       The message key that caused the HEAD failure.
+   */
+  void HEADFailed(in long aMessage);
+
+  /**
+   * Calls the filters after all messages have been processed.
+   *
+   * This method also cleans out some internal state relating to the messages
+   * that have been processed, so it should always be called at the end of
+   * XOVER/XHDR/HEAD processing.
+   */
+  void callFilters();
+
+  attribute boolean getOldMessages;
+};
+