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perf report/top: Allow pressing hotkeys in the options popup menu

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When the users presses ENTER in the main 'perf report/top' screen a
popup menu is presented, in it some hotkeys are suggested as
alternatives to using the menu, or for additional features.

At that point the user may try those hotkeys, so allow for that by
recording the key used and exiting, the caller then can check for that
possibility and process the hotkey.

I.e. try pressing ENTER, and then 'k' to exit and zoom into the kernel
map, using ESC then zooms out, etc.

Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-ujfq3fw44kf6qrtfajl5dcsp@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-12-16 13:27:47 -03:00
parent d07126560c
commit 4c8b9c0f42
1 changed files with 10 additions and 6 deletions
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16
tools/perf/ui/browsers/hists.c
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@ -2995,12 +2995,13 @@ static int perf_evsel__hists_browse(struct evsel *evsel, int nr_events,
while (1) {
struct thread *thread = NULL;
struct map *map = NULL;
int choice = 0;
int choice;
int socked_id = -1;
nr_options = 0;
key = hist_browser__run(browser, helpline, warn_lost_event, 0);
key = 0; // reset key
do_hotkey: // key came straight from options ui__popup_menu()
choice = nr_options = 0;
key = hist_browser__run(browser, helpline, warn_lost_event, key);
if (browser->he_selection != NULL) {
thread = hist_browser__selected_thread(browser);
@ -3279,10 +3280,13 @@ static int perf_evsel__hists_browse(struct evsel *evsel, int nr_events,
do {
struct popup_action *act;
choice = ui__popup_menu(nr_options, options, NULL);
if (choice == -1 || choice >= nr_options)
choice = ui__popup_menu(nr_options, options, &key);
if (choice == -1)
break;
if (choice == nr_options)
goto do_hotkey;
act = &actions[choice];
key = act->fn(browser, act);
} while (key == 1);