1 files changed, 68 insertions, 0 deletions
diff --git a/src/gui/gui-buffer.c b/src/gui/gui-buffer.c
index f871e5593..b4f0d9ce0 100644
--- a/src/gui/gui-buffer.c
+++ b/src/gui/gui-buffer.c
@@ -4391,6 +4391,74 @@ gui_buffer_undo_free_all (struct t_gui_buffer *buffer)
 }
 
 /*
+ * Moves buffer input content and undo data to another buffer.
+ */
+
+void
+gui_buffer_input_move_to_buffer (struct t_gui_buffer *from_buffer,
+                                 struct t_gui_buffer *to_buffer)
+{
+    int is_command;
+
+    /*
+     * move of input is allowed if:
+     * - 2 buffers are different
+     * - input_share is not set to "none"
+     * - input buffer in first buffer is not empty
+     */
+    if (!from_buffer || !to_buffer || (from_buffer == to_buffer)
+        || (CONFIG_INTEGER(config_look_input_share) == CONFIG_LOOK_INPUT_SHARE_NONE)
+        || !from_buffer->input_buffer || !from_buffer->input_buffer[0])
+        return;
+
+    /*
+     * if input is command and that only text is allowed,
+     * or if input is text and that only command is allowed,
+     * then do nothing
+     */
+    is_command = (string_input_for_buffer (from_buffer->input_buffer) == NULL) ? 1 : 0;
+    if ((is_command && (CONFIG_INTEGER(config_look_input_share) == CONFIG_LOOK_INPUT_SHARE_TEXT))
+        || (!is_command && (CONFIG_INTEGER(config_look_input_share) == CONFIG_LOOK_INPUT_SHARE_COMMANDS)))
+        return;
+
+    /*
+     * if overwrite is off and that input of target buffer is not empty,
+     * then do nothing
+     */
+    if ((!CONFIG_BOOLEAN(config_look_input_share_overwrite))
+        && to_buffer->input_buffer && to_buffer->input_buffer[0])
+        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_completion_stop (from_buffer->completion);
+}
+
+/*
  * Searches for a visited buffer in list of visited buffers.
  */