Add new option weechat.look.input_share (task #9228)

src/gui/curses/gui-curses-window.c

@@ -576,6 +576,12 @@ gui_window_switch_to_buffer (struct t_gui_window *window,
         window->buffer->lines->last_read_line = window->buffer->lines->last_line;
     }
     
+    if (CONFIG_BOOLEAN(config_look_input_share)
+        && (old_buffer != window->buffer))
+    {
+        gui_input_move_to_buffer (old_buffer, window->buffer);
+    }
+    
     hook_signal_send ("buffer_switch",
                       WEECHAT_HOOK_SIGNAL_POINTER, buffer);
 }
@@ -608,6 +614,12 @@ gui_window_switch (struct t_gui_window *window)
     
     gui_window_switch_to_buffer (gui_current_window,
                                  gui_current_window->buffer, 1);
+    
+    if (CONFIG_BOOLEAN(config_look_input_share)
+        && (old_window->buffer != window->buffer))
+    {
+        gui_input_move_to_buffer (old_window->buffer, window->buffer);
+    }
 }
 
 /*

src/gui/gui-buffer.c

@@ -323,6 +323,23 @@ gui_buffer_insert (struct t_gui_buffer *buffer)
     }
 }
 
+/*
+ * gui_buffer_input_buffer_init: initialize input_buffer_* variables
+ *                               in a buffer
+ */
+
+void
+gui_buffer_input_buffer_init (struct t_gui_buffer *buffer)
+{
+    buffer->input_buffer_alloc = GUI_BUFFER_INPUT_BLOCK_SIZE;
+    buffer->input_buffer = malloc (GUI_BUFFER_INPUT_BLOCK_SIZE);
+    buffer->input_buffer[0] = '\0';
+    buffer->input_buffer_size = 0;
+    buffer->input_buffer_length = 0;
+    buffer->input_buffer_pos = 0;
+    buffer->input_buffer_1st_display = 0;
+}
+
 /*
  * gui_buffer_new: create a new buffer in current window
  */
@@ -405,13 +422,7 @@ gui_buffer_new (struct t_weechat_plugin *plugin,
         new_buffer->input_callback = input_callback;
         new_buffer->input_callback_data = input_callback_data;
         new_buffer->input_get_unknown_commands = 0;
-        new_buffer->input_buffer_alloc = GUI_BUFFER_INPUT_BLOCK_SIZE;
-        new_buffer->input_buffer = malloc (GUI_BUFFER_INPUT_BLOCK_SIZE);
-        new_buffer->input_buffer[0] = '\0';
-        new_buffer->input_buffer_size = 0;
-        new_buffer->input_buffer_length = 0;
-        new_buffer->input_buffer_pos = 0;
-        new_buffer->input_buffer_1st_display = 0;
+        gui_buffer_input_buffer_init (new_buffer);
         
         /* undo for input */
         (new_buffer->input_undo_snap).data = NULL;

src/gui/gui-buffer.h

@@ -201,6 +201,7 @@ extern char *gui_buffer_properties_set[];
 /* buffer functions */
 
 extern void gui_buffer_notify_set_all ();
+extern void gui_buffer_input_buffer_init (struct t_gui_buffer *buffer);
 extern struct t_gui_buffer *gui_buffer_new (struct t_weechat_plugin *plugin,
                                             const char *name,
                                             int (*input_callback)(void *data,

src/gui/gui-input.c

@@ -239,6 +239,46 @@ gui_input_insert_string (struct t_gui_buffer *buffer, const char *string,
     return 0;
 }
 
+/*
+ * gui_input_move_to_buffer: move input content and undo data from
+ *                           a buffer to another buffer
+ */
+
+void
+gui_input_move_to_buffer (struct t_gui_buffer *from_buffer,
+                          struct t_gui_buffer *to_buffer)
+{
+    /* only possible for two different buffers */
+    if (!from_buffer || !to_buffer || (from_buffer == to_buffer))
+        return;
+    
+    /* move input_buffer */
+    if (to_buffer->input_buffer)
+        free (to_buffer->input_buffer);
+    to_buffer->input_buffer = from_buffer->input_buffer;
+    to_buffer->input_buffer_alloc = from_buffer->input_buffer_alloc;
+    to_buffer->input_buffer_size = from_buffer->input_buffer_size;
+    to_buffer->input_buffer_length = from_buffer->input_buffer_length;
+    to_buffer->input_buffer_pos = from_buffer->input_buffer_pos;
+    to_buffer->input_buffer_1st_display = from_buffer->input_buffer_1st_display;
+    gui_buffer_input_buffer_init (from_buffer);
+    
+    /* move undo data */
+    gui_buffer_undo_free_all (to_buffer);
+    (to_buffer->input_undo_snap).data = (from_buffer->input_undo_snap).data;
+    (to_buffer->input_undo_snap).pos = (from_buffer->input_undo_snap).pos;
+    to_buffer->input_undo = from_buffer->input_undo;
+    to_buffer->last_input_undo = from_buffer->last_input_undo;
+    to_buffer->ptr_input_undo = from_buffer->ptr_input_undo;
+    to_buffer->input_undo_count = from_buffer->input_undo_count;
+    (from_buffer->input_undo_snap).data = NULL;
+    (from_buffer->input_undo_snap).pos = 0;
+    from_buffer->input_undo = NULL;
+    from_buffer->last_input_undo = NULL;
+    from_buffer->ptr_input_undo = NULL;
+    from_buffer->input_undo_count = 0;
+}
+
 /*
  * gui_input_clipboard_copy: copy string into clipboard
  */

src/gui/gui-input.h

@@ -39,6 +39,8 @@ extern void gui_input_move (struct t_gui_buffer *buffer, char *target,
 extern void gui_input_set_pos (struct t_gui_buffer *buffer, int pos);
 extern int gui_input_insert_string (struct t_gui_buffer *buffer,
                                     const char *string, int pos);
+extern void gui_input_move_to_buffer (struct t_gui_buffer *from_buffer,
+                                      struct t_gui_buffer *to_buffer);
 extern void gui_input_clipboard_paste (struct t_gui_window *window);
 extern void gui_input_return (struct t_gui_window *window);
 extern void gui_input_complete_next (struct t_gui_window *window);