[PATCH 02/16] perf ui browser: Allow overriding refresh_dimensions method

From: Arnaldo Carvalho de Melo
Date: Tue Jul 08 2014 - 15:03:33 EST


From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

Some browsers, like the hist_browser, may want to be notified everytime
a refresh_dimensions is needed, so that it can reset ui_browser->rows,
for instance, or do some other related reaction to screen resizings.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Don Zickus <dzickus@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-ielvluuemzn30bneh0zk3twi@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/ui/browser.c | 7 +++++--
tools/perf/ui/browser.h | 1 +
2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index adb294a3ec08..6680fa5cb9dd 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -250,7 +250,10 @@ int ui_browser__show(struct ui_browser *browser, const char *title,
int err;
va_list ap;

- ui_browser__refresh_dimensions(browser);
+ if (browser->refresh_dimensions == NULL)
+ browser->refresh_dimensions = ui_browser__refresh_dimensions;
+
+ browser->refresh_dimensions(browser);

pthread_mutex_lock(&ui__lock);
__ui_browser__show_title(browser, title);
@@ -367,7 +370,7 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs)

if (key == K_RESIZE) {
ui__refresh_dimensions(false);
- ui_browser__refresh_dimensions(browser);
+ browser->refresh_dimensions(browser);
__ui_browser__show_title(browser, browser->title);
ui_helpline__puts(browser->helpline);
continue;
diff --git a/tools/perf/ui/browser.h b/tools/perf/ui/browser.h
index cb8f39a1646f..92ae72113965 100644
--- a/tools/perf/ui/browser.h
+++ b/tools/perf/ui/browser.h
@@ -19,6 +19,7 @@ struct ui_browser {
void *priv;
const char *title;
char *helpline;
+ void (*refresh_dimensions)(struct ui_browser *browser);
unsigned int (*refresh)(struct ui_browser *browser);
void (*write)(struct ui_browser *browser, void *entry, int row);
void (*seek)(struct ui_browser *browser, off_t offset, int whence);
--
1.9.3

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