#include <stdio.h>
#include <string.h>

#include "gtk.h"
#include "../ui.h"
#include "../helpline.h"
#include "../../util/debug.h"

static void gtk_helpline_pop(void)
{
	if (!perf_gtk__is_active_context(pgctx))
		return;

	gtk_statusbar_pop(GTK_STATUSBAR(pgctx->statbar),
			  pgctx->statbar_ctx_id);
}

static void gtk_helpline_push(const char *msg)
{
	if (!perf_gtk__is_active_context(pgctx))
		return;

	gtk_statusbar_push(GTK_STATUSBAR(pgctx->statbar),
			   pgctx->statbar_ctx_id, msg);
}

static int gtk_helpline_show(const char *fmt, va_list ap)
{
	int ret;
	char *ptr;
	static int backlog;

	ret = vscnprintf(ui_helpline__current + backlog,
			 sizeof(ui_helpline__current) - backlog, fmt, ap);
	backlog += ret;

	/* only first line can be displayed */
	ptr = strchr(ui_helpline__current, '\n');
	if (ptr && (ptr - ui_helpline__current) <= backlog) {
		*ptr = '\0';
		ui_helpline__puts(ui_helpline__current);
		backlog = 0;
	}

	return ret;
}

static struct ui_helpline gtk_helpline_fns = {
	.pop	= gtk_helpline_pop,
	.push	= gtk_helpline_push,
	.show	= gtk_helpline_show,
};

void perf_gtk__init_helpline(void)
{
	helpline_fns = &gtk_helpline_fns;
}
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<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=316d4d78cf9b6795b83f97c45368748741df418c'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?id=316d4d78cf9b6795b83f97c45368748741df418c'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/sched?id=316d4d78cf9b6795b83f97c45368748741df418c'>sched</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/sched/act_meta_skbtcindex.c?id=316d4d78cf9b6795b83f97c45368748741df418c'>act_meta_skbtcindex.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/sched/act_meta_skbtcindex.c?id=316d4d78cf9b6795b83f97c45368748741df418c&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>