From 5c79933faaf0dc6cbc36cf27edde62fd17d08fce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Helleu?= <flashcode@flashtux.org>
Date: Thu, 16 May 2024 07:58:52 +0200
Subject: [PATCH] core: add bar item "lag"

This bar item is overridden by the irc bar item with the same name, but it used
on relay remote buffers, so that the lag is visible as well.
---
 ChangeLog.adoc         |  1 +
 src/gui/gui-bar-item.c | 43 ++++++++++++++++++++++++++++++++++++++++--
 src/gui/gui-bar-item.h |  1 +
 3 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/ChangeLog.adoc b/ChangeLog.adoc
index 3127f8ade..f45ffed98 100644
--- a/ChangeLog.adoc
+++ b/ChangeLog.adoc
@@ -15,6 +15,7 @@ For a list of important changes that require manual actions, please look at rele
 
 New features::
 
+  * core: add bar item "lag"
   * core: add buffer properties "input_prompt" and "modes"
   * core: send signal "buffer_line_added" on buffers with free content
   * core: add support of XDG "state" directory (issue #2106, issue #1747)
diff --git a/src/gui/gui-bar-item.c b/src/gui/gui-bar-item.c
index e53fa4c7d..bfd20720d 100644
--- a/src/gui/gui-bar-item.c
+++ b/src/gui/gui-bar-item.c
@@ -66,8 +66,8 @@ char *gui_bar_item_names[GUI_BAR_NUM_ITEMS] =
   "buffer_name", "buffer_short_name", "buffer_modes", "buffer_filter",
   "buffer_zoom", "buffer_nicklist_count", "buffer_nicklist_count_groups",
   "buffer_nicklist_count_all", "scroll", "hotlist", "completion",
-  "buffer_title", "buffer_nicklist", "window_number", "mouse_status", "away",
-  "spacer"
+  "buffer_title", "buffer_nicklist", "window_number", "mouse_status", "lag",
+  "away", "spacer"
 };
 struct t_gui_bar_item_hook *gui_bar_item_hooks = NULL;
 struct t_hook *gui_bar_item_timer = NULL;
@@ -2042,6 +2042,38 @@ gui_bar_item_mouse_status_cb (const void *pointer, void *data,
     return strdup (str_mouse);
 }
 
+/*
+ * Bar item with buffer lag.
+ */
+
+char *
+gui_bar_item_lag_cb (const void *pointer, void *data,
+                     struct t_gui_bar_item *item,
+                     struct t_gui_window *window,
+                     struct t_gui_buffer *buffer,
+                     struct t_hashtable *extra_info)
+{
+    const char *lag;
+    char str_lag[1024];
+
+    /* make C compiler happy */
+    (void) pointer;
+    (void) data;
+    (void) item;
+    (void) window;
+    (void) extra_info;
+
+    if (!buffer)
+        return NULL;
+
+    lag = (const char *)hashtable_get (buffer->local_variables, "lag");
+    if (!lag)
+        return NULL;
+
+    snprintf (str_lag, sizeof (str_lag), "%s: %s", _("Lag"), lag);
+    return strdup (str_lag);
+}
+
 /*
  * Bar item with away message.
  */
@@ -2489,6 +2521,13 @@ gui_bar_item_init ()
     gui_bar_item_hook_signal ("mouse_enabled;mouse_disabled",
                               gui_bar_item_names[GUI_BAR_ITEM_MOUSE_STATUS]);
 
+    /* lag */
+    gui_bar_item_new (NULL,
+                      gui_bar_item_names[GUI_BAR_ITEM_LAG],
+                      &gui_bar_item_lag_cb, NULL, NULL);
+    gui_bar_item_hook_signal ("window_switch;buffer_switch;buffer_localvar_*",
+                              gui_bar_item_names[GUI_BAR_ITEM_LAG]);
+
     /* away message */
     gui_bar_item_new (NULL,
                       gui_bar_item_names[GUI_BAR_ITEM_AWAY],
diff --git a/src/gui/gui-bar-item.h b/src/gui/gui-bar-item.h
index 816a6cb58..ebfdb601a 100644
--- a/src/gui/gui-bar-item.h
+++ b/src/gui/gui-bar-item.h
@@ -46,6 +46,7 @@ enum t_gui_bar_item_weechat
     GUI_BAR_ITEM_BUFFER_NICKLIST,
     GUI_BAR_ITEM_WINDOW_NUMBER,
     GUI_BAR_ITEM_MOUSE_STATUS,
+    GUI_BAR_ITEM_LAG,
     GUI_BAR_ITEM_AWAY,
     GUI_BAR_ITEM_SPACER,
     /* number of bar items */