irc: create server/channel/raw buffers with function buffer_new_props (issue #1942)

With this function, buffer properties are set when the buffer is created and
can be read immediately by other plugins/scripts, for example in a callback of
signal "buffer_opened".

src/plugins/irc/irc-channel.c

@@ -235,6 +235,24 @@ irc_channel_search_buffer (struct t_irc_server *server, int channel_type,
     return NULL;
 }
 
+/*
+ * Applies properties to a buffer.
+ */
+
+void
+irc_channel_apply_props (void *data,
+                         struct t_hashtable *hashtable,
+                         const void *key,
+                         const void *value)
+{
+    /* make C compiler happy */
+    (void) hashtable;
+
+    weechat_buffer_set ((struct t_gui_buffer *)data,
+                        (const char *)key,
+                        (const char *)value);
+}
+
 /*
  * Creates a buffer for a channel.
  */
@@ -247,13 +265,14 @@ irc_channel_create_buffer (struct t_irc_server *server,
                            int auto_switch)
 {
     struct t_gui_buffer *ptr_buffer, *ptr_buffer_for_merge;
+    struct t_hashtable *buffer_props;
     int buffer_created, current_buffer_number, buffer_position;
     int autojoin_join, manual_join, noswitch;
     char str_number[32], *channel_name_lower, *buffer_name;
     const char *short_name, *localvar_channel;
 
     buffer_created = 0;
-
+    buffer_props = NULL;
     buffer_name = irc_buffer_build_name (server->name, channel_name);
 
     ptr_buffer = irc_channel_search_buffer (server, channel_type,
@@ -270,9 +289,44 @@ irc_channel_create_buffer (struct t_irc_server *server,
         if (ptr_buffer)
             weechat_bar_item_update ("buffer_name");
     }
+
+    buffer_props = weechat_hashtable_new (
+        32,
+        WEECHAT_HASHTABLE_STRING,
+        WEECHAT_HASHTABLE_STRING,
+        NULL, NULL);
+    if (buffer_props)
+    {
+        weechat_hashtable_set (
+            buffer_props,
+            "input_multiline",
+            (weechat_hashtable_has_key (server->cap_list, "batch")
+             && weechat_hashtable_has_key (server->cap_list, "draft/multiline")) ?
+            "1" : "0");
+        weechat_hashtable_set (buffer_props, "name", buffer_name);
+        weechat_hashtable_set (
+            buffer_props,
+            "localvar_set_type",
+            (channel_type == IRC_CHANNEL_TYPE_CHANNEL) ? "channel" : "private");
+        weechat_hashtable_set (buffer_props, "localvar_set_nick", server->nick);
+        weechat_hashtable_set (buffer_props, "localvar_set_host", server->host);
+        weechat_hashtable_set (buffer_props, "localvar_set_server", server->name);
+        weechat_hashtable_set (buffer_props, "localvar_set_channel", channel_name);
+        if (server->is_away && server->away_message)
+        {
+            weechat_hashtable_set (buffer_props,
+                                   "localvar_set_away", server->away_message);
+        }
+        else
+        {
+            weechat_hashtable_set (buffer_props, "localvar_del_away", "");
+        }
+    }
+
     if (ptr_buffer)
     {
         weechat_nicklist_remove_all (ptr_buffer);
+        weechat_hashtable_map (buffer_props, &irc_channel_apply_props, ptr_buffer);
     }
     else
     {
@@ -294,9 +348,11 @@ irc_channel_create_buffer (struct t_irc_server *server,
         current_buffer_number = weechat_buffer_get_integer (
             weechat_current_buffer (), "number");
 
-        ptr_buffer = weechat_buffer_new (buffer_name,
-                                         &irc_input_data_cb, NULL, NULL,
-                                         &irc_buffer_close_cb, NULL, NULL);
+        ptr_buffer = weechat_buffer_new_props (
+            buffer_name,
+            buffer_props,
+            &irc_input_data_cb, NULL, NULL,
+            &irc_buffer_close_cb, NULL, NULL);
         if (!ptr_buffer)
             goto end;
 
@@ -347,30 +403,6 @@ irc_channel_create_buffer (struct t_irc_server *server,
         }
     }
 
-    weechat_buffer_set (
-        ptr_buffer,
-        "input_multiline",
-        (weechat_hashtable_has_key (server->cap_list, "batch")
-         && weechat_hashtable_has_key (server->cap_list, "draft/multiline")) ?
-        "1" : "0");
-
-    weechat_buffer_set (ptr_buffer, "name", buffer_name);
-    weechat_buffer_set (ptr_buffer, "localvar_set_type",
-                        (channel_type == IRC_CHANNEL_TYPE_CHANNEL) ? "channel" : "private");
-    weechat_buffer_set (ptr_buffer, "localvar_set_nick", server->nick);
-    weechat_buffer_set (ptr_buffer, "localvar_set_host", server->host);
-    weechat_buffer_set (ptr_buffer, "localvar_set_server", server->name);
-    weechat_buffer_set (ptr_buffer, "localvar_set_channel", channel_name);
-    if (server->is_away && server->away_message)
-    {
-        weechat_buffer_set (ptr_buffer, "localvar_set_away",
-                            server->away_message);
-    }
-    else
-    {
-        weechat_buffer_set (ptr_buffer, "localvar_del_away", "");
-    }
-
     if (buffer_created)
     {
         (void) weechat_hook_signal_send ("logger_backlog",
@@ -450,6 +482,8 @@ irc_channel_create_buffer (struct t_irc_server *server,
     }
 
 end:
+    if (buffer_props)
+        weechat_hashtable_free (buffer_props);
     if (buffer_name)
         free (buffer_name);
     return ptr_buffer;

src/plugins/irc/irc-raw.c

@@ -379,16 +379,39 @@ irc_raw_refresh (int clear)
 void
 irc_raw_open (int switch_to_buffer)
 {
+    struct t_hashtable *buffer_props;
+
     if (!irc_raw_buffer)
     {
         irc_raw_buffer = weechat_buffer_search (IRC_PLUGIN_NAME,
                                                 IRC_RAW_BUFFER_NAME);
         if (!irc_raw_buffer)
         {
-            irc_raw_buffer = weechat_buffer_new (
+            buffer_props = weechat_hashtable_new (
+                32,
+                WEECHAT_HASHTABLE_STRING,
+                WEECHAT_HASHTABLE_STRING,
+                NULL, NULL);
+            if (buffer_props)
+            {
+                weechat_hashtable_set (buffer_props,
+                                       "localvar_set_type", "debug");
+                weechat_hashtable_set (buffer_props,
+                                       "localvar_set_server", IRC_RAW_BUFFER_NAME);
+                weechat_hashtable_set (buffer_props,
+                                       "localvar_set_channel", IRC_RAW_BUFFER_NAME);
+                weechat_hashtable_set (buffer_props,
+                                       "localvar_set_no_log", "1");
+                /* disable all highlights on this buffer */
+                weechat_hashtable_set (buffer_props, "highlight_words", "-");
+            }
+            irc_raw_buffer = weechat_buffer_new_props (
                 IRC_RAW_BUFFER_NAME,
+                buffer_props,
                 &irc_input_data_cb, NULL, NULL,
                 &irc_buffer_close_cb, NULL, NULL);
+            if (buffer_props)
+                weechat_hashtable_free (buffer_props);
 
             /* failed to create buffer ? then return */
             if (!irc_raw_buffer)
@@ -399,13 +422,6 @@ irc_raw_open (int switch_to_buffer)
                 weechat_buffer_set (irc_raw_buffer, "short_name",
                                     IRC_RAW_BUFFER_NAME);
             }
-            weechat_buffer_set (irc_raw_buffer, "localvar_set_type", "debug");
-            weechat_buffer_set (irc_raw_buffer, "localvar_set_server", IRC_RAW_BUFFER_NAME);
-            weechat_buffer_set (irc_raw_buffer, "localvar_set_channel", IRC_RAW_BUFFER_NAME);
-            weechat_buffer_set (irc_raw_buffer, "localvar_set_no_log", "1");
-
-            /* disable all highlights on this buffer */
-            weechat_buffer_set (irc_raw_buffer, "highlight_words", "-");
 
             irc_raw_set_localvar_filter ();
 

src/plugins/irc/irc-server.c

@@ -4668,6 +4668,7 @@ irc_server_create_buffer (struct t_irc_server *server)
 {
     char buffer_name[1024], charset_modifier[1024];
     struct t_gui_buffer *ptr_buffer_for_merge;
+    struct t_hashtable *buffer_props;
 
     ptr_buffer_for_merge = NULL;
     switch (weechat_config_integer (irc_config_look_server_buffer))
@@ -4682,31 +4683,50 @@ irc_server_create_buffer (struct t_irc_server *server)
             break;
     }
 
+    buffer_props = weechat_hashtable_new (
+        32,
+        WEECHAT_HASHTABLE_STRING,
+        WEECHAT_HASHTABLE_STRING,
+        NULL, NULL);
+    if (buffer_props)
+    {
+        weechat_hashtable_set (buffer_props, "localvar_set_type", "server");
+        weechat_hashtable_set (buffer_props,
+                               "localvar_set_server", server->name);
+        weechat_hashtable_set (buffer_props,
+                               "localvar_set_channel", server->name);
+        snprintf (charset_modifier, sizeof (charset_modifier),
+                  "irc.%s", server->name);
+        weechat_hashtable_set (buffer_props,
+                               "localvar_set_charset_modifier",
+                               charset_modifier);
+        if (weechat_config_boolean (irc_config_network_send_unknown_commands))
+        {
+            weechat_hashtable_set (buffer_props,
+                                   "input_get_unknown_commands", "1");
+        }
+    }
+
     snprintf (buffer_name, sizeof (buffer_name),
               "server.%s", server->name);
-    server->buffer = weechat_buffer_new (buffer_name,
-                                         &irc_input_data_cb, NULL, NULL,
-                                         &irc_buffer_close_cb, NULL, NULL);
+    server->buffer = weechat_buffer_new_props (
+        buffer_name,
+        buffer_props,
+        &irc_input_data_cb, NULL, NULL,
+        &irc_buffer_close_cb, NULL, NULL);
+    if (buffer_props)
+        weechat_hashtable_free (buffer_props);
+
     if (!server->buffer)
         return NULL;
 
     if (!weechat_buffer_get_integer (server->buffer, "short_name_is_set"))
         weechat_buffer_set (server->buffer, "short_name", server->name);
-    weechat_buffer_set (server->buffer, "localvar_set_type", "server");
-    weechat_buffer_set (server->buffer, "localvar_set_server", server->name);
-    weechat_buffer_set (server->buffer, "localvar_set_channel", server->name);
-    snprintf (charset_modifier, sizeof (charset_modifier),
-              "irc.%s", server->name);
-    weechat_buffer_set (server->buffer, "localvar_set_charset_modifier",
-                        charset_modifier);
 
     (void) weechat_hook_signal_send ("logger_backlog",
                                      WEECHAT_HOOK_SIGNAL_POINTER,
                                      server->buffer);
 
-    if (weechat_config_boolean (irc_config_network_send_unknown_commands))
-        weechat_buffer_set (server->buffer, "input_get_unknown_commands", "1");
-
     /* set highlights settings on server buffer */
     weechat_buffer_set (server->buffer, "highlight_words_add",
                         weechat_config_string (irc_config_look_highlight_server));