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gdb/tui: better filtering of tab completion results for focus command

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While working on the previous couple of commits, I noticed that the
'focus' command would happily suggest 'status' as a possible focus
completion, even though the 'status' window is non-focusable, and,
after the previous couple of commits, trying to focus the status
window will result in an error.

This commit improves the tab-completion results for the focus command
so that the status window is not included.
This commit is contained in:
Andrew Burgess 2022-12-20 15:45:32 +00:00
parent 6789344ab2
commit 6db98f026e
2 changed files with 33 additions and 9 deletions
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18
gdb/testsuite/gdb.tui/completion.exp
View File

@ -15,8 +15,9 @@
require allow_tui_tests
gdb_exit
gdb_start
tuiterm_env
clean_restart
if {[target_info exists gdb,nointerrupts]} {
return
@ -56,3 +57,16 @@ with_test_prefix "completion of layout names" {
with_test_prefix "completion of focus command" {
test_tab_completion "focus" "cmd *next *prev *src *"
}
# Now run some completion tests when TUI mode is enabled.
Term::clean_restart 24 80
if {![Term::prepare_for_tui]} {
unsupported "TUI not supported"
return
}
Term::command "layout src"
Term::command "complete focus "
Term::dump_screen
Term::check_region_contents "check focus completions" 0 17 80 5 \
"focus cmd\\s*focus next\\s*focus prev\\s*focus src\\s*$gdb_prompt"

24
gdb/tui/tui-win.c
View File

@ -362,13 +362,19 @@ show_tui_resize_message (struct ui_file *file, int from_tty,
/* Generic window name completion function. Complete window name pointed
to by TEXT and WORD. If INCLUDE_NEXT_PREV_P is true then the special
window names 'next' and 'prev' will also be considered as possible
completions of the window name. */
to by TEXT and WORD.
If EXCLUDE_CANNOT_FOCUS_P is true, then windows that can't take focus
will be excluded from the completions, otherwise they will be included.
If INCLUDE_NEXT_PREV_P is true then the special window names 'next' and
'prev' will also be considered as possible completions of the window
name. This is independent of EXCLUDE_CANNOT_FOCUS_P. */
static void
window_name_completer (completion_tracker &tracker,
int include_next_prev_p,
bool include_next_prev_p,
bool exclude_cannot_focus_p,
const char *text, const char *word)
{
std::vector<const char *> completion_name_vec;
@ -377,10 +383,14 @@ window_name_completer (completion_tracker &tracker,
{
const char *completion_name = NULL;
/* We can't focus on an invisible window. */
/* Don't include an invisible window. */
if (!win_info->is_visible ())
continue;
/* If requested, exclude windows that can't be focused. */
if (exclude_cannot_focus_p && !win_info->can_focus ())
continue;
completion_name = win_info->name ();
gdb_assert (completion_name != NULL);
completion_name_vec.push_back (completion_name);
@ -415,7 +425,7 @@ focus_completer (struct cmd_list_element *ignore,
completion_tracker &tracker,
const char *text, const char *word)
{
window_name_completer (tracker, 1, text, word);
window_name_completer (tracker, true, true, text, word);
}
/* Complete possible window names for winheight command. TEXT is the
@ -432,7 +442,7 @@ winheight_completer (struct cmd_list_element *ignore,
if (word != text)
return;
window_name_completer (tracker, 0, text, word);
window_name_completer (tracker, false, false, text, word);
}
/* Update gdb's knowledge of the terminal size. */