core: send signal "buffer_moved" for all buffers affected by merge/unmerge

CHANGELOG.md

@@ -62,6 +62,7 @@
 - xfer: fix send of data on the DCC chat buffer after `/upgrade` if the buffer was opened before the upgrade ([#2092](https://github.com/weechat/weechat/issues/2092))
 - core: fix refresh of bar item "scroll" in root bar after `/buffer clear` ([#590](https://github.com/weechat/weechat/issues/590))
 - core, plugins: return "0x0" instead of "(nil)" for pointers formatted in strings
+- core: send signal "buffer_moved" for all buffers affected by merge/unmerge
 - ruby: fix builtin functions not available ([#2109](https://github.com/weechat/weechat/issues/2109))
 - php: fix return value of function hdata_longlong
 - tcl: fix return value of function hdata_longlong ([#2119](https://github.com/weechat/weechat/issues/2119))

src/gui/gui-buffer.c

@@ -36,6 +36,7 @@
 #include <ctype.h>
 
 #include "../core/weechat.h"
+#include "../core/core-arraylist.h"
 #include "../core/core-config.h"
 #include "../core/core-eval.h"
 #include "../core/core-hashtable.h"
@@ -459,6 +460,10 @@ gui_buffer_shift_numbers (struct t_gui_buffer *buffer)
             break;
         }
         ptr_buffer->number++;
+        (void) gui_buffer_send_signal (ptr_buffer,
+                                       "buffer_moved",
+                                       WEECHAT_HOOK_SIGNAL_POINTER,
+                                       ptr_buffer);
     }
 }
 
@@ -4407,6 +4412,8 @@ gui_buffer_merge (struct t_gui_buffer *buffer,
                   struct t_gui_buffer *target_buffer)
 {
     struct t_gui_buffer *ptr_buffer, *ptr_first_buffer[2], *ptr_last_buffer[2];
+    struct t_arraylist *buffers_moved;
+    int i, list_size;
 
     if (!buffer || !target_buffer)
         return;
@@ -4451,6 +4458,10 @@ gui_buffer_merge (struct t_gui_buffer *buffer,
     if (!ptr_first_buffer[1] || !ptr_last_buffer[1])
         return;
 
+    buffers_moved = arraylist_new (32, 0, 1, NULL, NULL, NULL, NULL);
+    if (!buffers_moved)
+        return;
+
     /* remove buffer(s) to merge from list */
     if (ptr_first_buffer[0]->prev_buffer)
         (ptr_first_buffer[0]->prev_buffer)->next_buffer = ptr_last_buffer[0]->next_buffer;
@@ -4467,6 +4478,7 @@ gui_buffer_merge (struct t_gui_buffer *buffer,
         for (ptr_buffer = ptr_last_buffer[0]->next_buffer; ptr_buffer;
              ptr_buffer = ptr_buffer->next_buffer)
         {
+            arraylist_add (buffers_moved, ptr_buffer);
             ptr_buffer->number--;
         }
     }
@@ -4485,6 +4497,7 @@ gui_buffer_merge (struct t_gui_buffer *buffer,
          ptr_buffer = ptr_buffer->next_buffer)
     {
         ptr_buffer->number = target_buffer->number;
+        arraylist_add (buffers_moved, ptr_buffer);
         if (ptr_buffer == ptr_last_buffer[0])
             break;
     }
@@ -4502,6 +4515,20 @@ gui_buffer_merge (struct t_gui_buffer *buffer,
     (void) gui_buffer_send_signal (buffer,
                                    "buffer_merged",
                                    WEECHAT_HOOK_SIGNAL_POINTER, buffer);
+
+    list_size = arraylist_size (buffers_moved);
+    for (i = 0; i < list_size; i++)
+    {
+        ptr_buffer = (struct t_gui_buffer *)arraylist_get (buffers_moved, i);
+        if (ptr_buffer)
+        {
+            (void) gui_buffer_send_signal (ptr_buffer,
+                                           "buffer_moved",
+                                           WEECHAT_HOOK_SIGNAL_POINTER, ptr_buffer);
+        }
+    }
+
+    arraylist_free (buffers_moved);
 }
 
 /*