[pan2] clear last-visited (group/article) on middle-click

[Heinrich MÃller <henmull src gnome org>]

commit 05250d54f9911e39e49cfb1faf8deb2b51ed3e2d
Author: Heinrich MÃller <henmull src gnome org>
Date:   Mon Jun 18 19:35:31 2012 +0200

    clear last-visited (group/article) on middle-click

 pan/gui/body-pane.cc   |   14 ++++++++++++--
 pan/gui/body-pane.h    |    6 ++++++
 pan/gui/gui.cc         |   11 +----------
 pan/gui/header-pane.cc |    8 ++++++--
 pan/gui/header-pane.h  |    7 +++++++
 5 files changed, 32 insertions(+), 14 deletions(-)
---
diff --git a/pan/gui/body-pane.cc b/pan/gui/body-pane.cc
index 4b8b7a7..329377b 100644
--- a/pan/gui/body-pane.cc
+++ b/pan/gui/body-pane.cc
@@ -1293,6 +1293,8 @@ BodyPane :: set_article (const Article& a)
 
   refresh ();
 
+  set_cleared(false);
+
   _data.mark_read (_article);
 }
 
@@ -1303,6 +1305,8 @@ BodyPane :: clear ()
     g_object_unref (_message);
   _message = 0;
 
+  set_cleared(true);
+
   refresh ();
 }
 
@@ -1668,7 +1672,8 @@ BodyPane :: BodyPane (Data& data, ArticleCache& cache, Prefs& prefs, GroupPrefs
 //  _gpgerr(GPG_DECODE),
 #endif
   _attachments(0),
-  _current_attachment(0)
+  _current_attachment(0),
+  _cleared (true)
 {
 
   GtkWidget * w, * l, * hbox;
@@ -1777,6 +1782,11 @@ BodyPane :: BodyPane (Data& data, ArticleCache& cache, Prefs& prefs, GroupPrefs
   gtk_widget_show_all (_root);
 }
 
+namespace
+{
+
+}
+
 BodyPane :: ~BodyPane ()
 {
   _prefs.remove_listener (this);
@@ -1794,7 +1804,7 @@ BodyPane :: ~BodyPane ()
     g_free(*it);
 
   // store last opened message in prefs
-  _prefs.set_string("last-opened-msg", get_message_id ().to_view());
+  _prefs.set_string("last-opened-msg", get_cleared() ? "" : get_message_id().to_view());
 }
 
 
diff --git a/pan/gui/body-pane.h b/pan/gui/body-pane.h
index 4478218..b41e296 100644
--- a/pan/gui/body-pane.h
+++ b/pan/gui/body-pane.h
@@ -161,6 +161,12 @@ namespace pan
       std::set<char*> _attach_names;
       MenuSelection _selection;
 
+      bool _cleared;
+
+    public:
+      void set_cleared(bool val) { _cleared = val; }
+      bool get_cleared() { return _cleared; }
+
     public:
       const char* _current_attachment;
 
diff --git a/pan/gui/gui.cc b/pan/gui/gui.cc
index 041397f..d0222f1 100644
--- a/pan/gui/gui.cc
+++ b/pan/gui/gui.cc
@@ -203,15 +203,6 @@ GUI :: root_realized_cb (GtkWidget*, gpointer self_gpointer)
 #endif
     gui->_body_pane->set_text_from_message(msg);
 
-//    Article article;
-//    PartBatch part_batch;
-//    last_msg = last_msg.substr(last_msg.strchr('<')+1, last_msg.strchr('>'));
-//    std::cerr<<"msg "<<last_msg<<"\n";
-//    part_batch.init (last_msg, 1, 0);
-//    part_batch.add_part (0, last_msg, 0);
-//    article.set_parts(part_batch);
-//    Task * t = new TaskArticle (_data, _data, article, _cache, _data, this);
-//    _queue.add_task (t, Queue::TOP);
   }
 }
 
@@ -1018,7 +1009,7 @@ void GUI :: do_clear_header_pane ()
 {
   gtk_window_set_title (get_window(_root), _("Pan"));
   _header_pane->set_group (Quark());
-
+//  _header_pane->set_cleared(true);
 }
 
 void GUI :: do_clear_body_pane ()
diff --git a/pan/gui/header-pane.cc b/pan/gui/header-pane.cc
index 05bdeea..d782671 100644
--- a/pan/gui/header-pane.cc
+++ b/pan/gui/header-pane.cc
@@ -582,6 +582,9 @@ HeaderPane :: rebuild ()
 bool
 HeaderPane :: set_group (const Quark& new_group)
 {
+
+  set_cleared(new_group.empty());
+
   const Quark old_group (_group);
   bool change (old_group != new_group);
 
@@ -1761,7 +1764,7 @@ HeaderPane :: ~HeaderPane ()
   }
   g_list_free (columns);
 
-  _prefs.set_string("last-visited-group", _group.to_view());
+  _prefs.set_string("last-visited-group", get_cleared() ? "" : _group.to_view());
   set_group (Quark());
 
   for (guint i=0; i<ICON_QTY; ++i)
@@ -1876,7 +1879,8 @@ HeaderPane :: HeaderPane (ActionManager       & action_manager,
   _tree_store (0),
   _selection_changed_idle_tag (0),
   _cache (cache),
-  _gui (gui)
+  _gui (gui),
+  _cleared (true)
 {
   // init the icons
   for (guint i=0; i<ICON_QTY; ++i)
diff --git a/pan/gui/header-pane.h b/pan/gui/header-pane.h
index 8be7260..461d088 100644
--- a/pan/gui/header-pane.h
+++ b/pan/gui/header-pane.h
@@ -381,6 +381,13 @@ namespace pan
                           const TreeIterFunctor  & iterate_func,
                           const ArticleTester    & test_func,
                           RowActionFunctor       & success_func);
+    private:
+
+      bool _cleared;
+
+    public:
+      void set_cleared(bool val) { _cleared = val; }
+      bool get_cleared() { return _cleared; }
   };
 }