From: Kevin McCarthy <kevin@8t8.us>
Date: Wed, 19 Oct 2016 20:21:16 +0000 (-0700)
Subject: Add root-message function to jump to root message in thread.
X-Git-Tag: mutt-1-8-rel~115
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2256f55ab4e65f011cd53786255aa9b1c0f1a9d1;p=mutt

Add root-message function to jump to root message in thread.

This seems like a useful feature that was brought up for discussion on
mutt-users.  Proposed solutions involved collapsing/uncollapsing
threads, but it's not hard to modify the mutt_parent_message()
function to return the root instead.
---

diff --git a/OPS b/OPS
index 02cea8e1..ed15b49e 100644
--- a/OPS
+++ b/OPS
@@ -124,6 +124,7 @@ OP_MAIN_PREV_NEW_THEN_UNREAD "jump to the previous new or unread message"
 OP_MAIN_PREV_UNREAD "jump to the previous unread message"
 OP_MAIN_READ_THREAD "mark the current thread as read"
 OP_MAIN_READ_SUBTHREAD "mark the current subthread as read"
+OP_MAIN_ROOT_MESSAGE "jump to root message in thread"
 OP_MAIN_SET_FLAG "set a status flag on a message"
 OP_MAIN_SYNC_FOLDER "save changes to mailbox"
 OP_MAIN_TAG_PATTERN "tag messages matching a pattern"
diff --git a/curs_main.c b/curs_main.c
index 8e0f52ad..3793eccc 100644
--- a/curs_main.c
+++ b/curs_main.c
@@ -474,7 +474,7 @@ static void resort_index (MUTTMENU *menu)
   }
 
   if ((Sort & SORT_MASK) == SORT_THREADS && menu->current < 0)
-    menu->current = mutt_parent_message (Context, current);
+    menu->current = mutt_parent_message (Context, current, 0);
 
   if (menu->current < 0)
     menu->current = ci_first_message ();
@@ -1791,12 +1791,14 @@ int mutt_index_menu (void)
 	  menu->redraw = REDRAW_MOTION;
 	break;
 
+      case OP_MAIN_ROOT_MESSAGE:
       case OP_MAIN_PARENT_MESSAGE:
 
 	CHECK_MSGCOUNT;
         CHECK_VISIBLE;
 
-	if ((menu->current = mutt_parent_message (Context, CURHDR)) < 0)
+	if ((menu->current = mutt_parent_message (Context, CURHDR,
+                                                  op == OP_MAIN_ROOT_MESSAGE)) < 0)
 	{
 	  menu->current = menu->oldcurrent;
 	}
diff --git a/functions.h b/functions.h
index abc06ca0..4f04251e 100644
--- a/functions.h
+++ b/functions.h
@@ -160,6 +160,7 @@ const struct binding_t OpMain[] = { /* map: index */
   { "next-unread",		OP_MAIN_NEXT_UNREAD,		NULL },
   { "previous-unread",		OP_MAIN_PREV_UNREAD,		NULL },
   { "parent-message",		OP_MAIN_PARENT_MESSAGE,		"P" },
+  { "root-message",		OP_MAIN_ROOT_MESSAGE,		NULL },
 
 
   { "extract-keys",		OP_EXTRACT_KEYS,		"\013" },
@@ -271,6 +272,7 @@ const struct binding_t OpPager[] = { /* map: pager */
   { "previous-line",	OP_PREV_LINE,			NULL },
   { "bottom",		OP_PAGER_BOTTOM,		NULL },
   { "parent-message",	OP_MAIN_PARENT_MESSAGE,		"P" },
+  { "root-message",	OP_MAIN_ROOT_MESSAGE,		NULL },
 
 
 
diff --git a/protos.h b/protos.h
index 19d64003..def09ea5 100644
--- a/protos.h
+++ b/protos.h
@@ -298,7 +298,7 @@ int mutt_fetch_recips (ENVELOPE *out, ENVELOPE *in, int flags);
 int mutt_chscmp (const char *s, const char *chs);
 #define mutt_is_utf8(a) mutt_chscmp (a, "utf-8")
 #define mutt_is_us_ascii(a) mutt_chscmp (a, "us-ascii")
-int mutt_parent_message (CONTEXT *, HEADER *);
+int mutt_parent_message (CONTEXT *, HEADER *, int);
 int mutt_prepare_template(FILE*, CONTEXT *, HEADER *, HEADER *, short);
 int mutt_resend_message (FILE *, CONTEXT *, HEADER *);
 #define mutt_enter_fname(A,B,C,D,E) _mutt_enter_fname(A,B,C,D,E,0,NULL,NULL)
diff --git a/thread.c b/thread.c
index cf77bdb7..2e247c09 100644
--- a/thread.c
+++ b/thread.c
@@ -1074,9 +1074,10 @@ int _mutt_aside_thread (HEADER *hdr, short dir, short subthreads)
   return (tmp->virtual);
 }
 
-int mutt_parent_message (CONTEXT *ctx, HEADER *hdr)
+int mutt_parent_message (CONTEXT *ctx, HEADER *hdr, int find_root)
 {
   THREAD *thread;
+  HEADER *parent = NULL;
 
   if ((Sort & SORT_MASK) != SORT_THREADS)
   {
@@ -1084,22 +1085,34 @@ int mutt_parent_message (CONTEXT *ctx, HEADER *hdr)
     return (hdr->virtual);
   }
 
+  /* Root may be the current message */
+  if (find_root)
+    parent = hdr;
+
   for (thread = hdr->thread->parent; thread; thread = thread->parent)
   {
     if ((hdr = thread->message) != NULL)
     {
-      if (VISIBLE (hdr, ctx))
-	return (hdr->virtual);
-      else
-      {
-	mutt_error _("Parent message is not visible in this limited view.");
-	return (-1);
-      }
+      parent = hdr;
+      if (!find_root)
+        break;
     }
   }
-  
-  mutt_error _("Parent message is not available.");
-  return (-1);
+
+  if (!parent)
+  {
+    mutt_error _("Parent message is not available.");
+    return (-1);
+  }
+  if (!VISIBLE (parent, ctx))
+  {
+    if (find_root)
+      mutt_error _("Root message is not visible in this limited view.");
+    else
+      mutt_error _("Parent message is not visible in this limited view.");
+    return (-1);
+  }
+  return (parent->virtual);
 }
 
 void mutt_set_virtual (CONTEXT *ctx)