[PATCH 59/61] perf c2c report: Add help windows

[Jiri Olsa]

Adding help windows to display key/action mappings
for both browsers.

Link: http://lkml.kernel.org/n/tip-zni4apopx6a9eyxsosm1ebh1@xxxxxxxxxxxxxx
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
---
 tools/perf/builtin-c2c.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 0902aba4cf19..e1e74ed27075 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2178,6 +2178,11 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
 	struct c2c_cacheline_browser *cl_browser;
 	struct hist_browser *browser;
 	int key = -1;
+	const char help[] =
+	" ENTER         Togle callchains (if present) \n"
+	" n             Togle Node details info \n"
+	" s             Togle full lenght of symbol and source line columns \n"
+	" q             Return back to cacheline list \n";
 
 	/* Display compact version first. */
 	c2c.symbol_full = false;
@@ -2198,7 +2203,7 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
 	c2c_browser__update_nr_entries(browser);
 
 	while (1) {
-		key = hist_browser__run(browser, "help");
+		key = hist_browser__run(browser, "? - help");
 
 		switch (key) {
 		case 's':
@@ -2210,6 +2215,9 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
 			break;
 		case 'q':
 			goto out;
+		case '?':
+			ui_browser__help_window(&browser->b, help);
+			break;
 		default:
 			break;
 		}
@@ -2248,6 +2256,10 @@ static int perf_c2c__hists_browse(struct hists *hists)
 {
 	struct hist_browser *browser;
 	int key = -1;
+	const char help[] =
+	" d             Display cacheline details \n"
+	" ENTER         Togle callchains (if present) \n"
+	" q             Quit \n";
 
 	browser = perf_c2c_browser__new(hists);
 	if (browser == NULL)
@@ -2260,7 +2272,7 @@ static int perf_c2c__hists_browse(struct hists *hists)
 	c2c_browser__update_nr_entries(browser);
 
 	while (1) {
-		key = hist_browser__run(browser, "help");
+		key = hist_browser__run(browser, "? - help");
 
 		switch (key) {
 		case 'q':
@@ -2268,6 +2280,9 @@ static int perf_c2c__hists_browse(struct hists *hists)
 		case 'd':
 			perf_c2c__browse_cacheline(browser->he_selection);
 			break;
+		case '?':
+			ui_browser__help_window(&browser->b, help);
+			break;
 		default:
 			break;
 		}
-- 
2.7.4