From b7817a88b371dc1efee08a09e4276e67fdfb8713 Mon Sep 17 00:00:00 2001
From: Boris Faure <billiob@gmail.com>
Date: Tue, 31 May 2016 21:33:00 +0200
Subject: [PATCH] keys: add Shift+Home to get to the top of the backlog. Closes
 T3582

---
 README            |  1 +
 man/terminology.1 |  4 ++++
 src/bin/config.c  |  8 ++++++--
 src/bin/keyin.c   | 13 +++++++++++++
 src/bin/termio.c  | 10 ++++++++++
 src/bin/termio.h  |  1 +
 6 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/README b/README
index f4fc5742..5bdac3b9 100644
--- a/README
+++ b/README
@@ -40,6 +40,7 @@ Shift+PgUp = Scroll 1 page up
 Shift+PgDn = Scroll 1 page down
 Shift+Up = Scroll 1 line up
 Shift+Down = Scroll 1 line down
+Shift+Home = Scroll to the top of the backlog
 Shift+Left = switch focus to previous terminal inside a window
 Shift+Right = switch focus to next terminal inside a window
 Shift+Insert = Paste Clipboard (ctrl+v/c) selection
diff --git a/man/terminology.1 b/man/terminology.1
index 374926bc..89230755 100644
--- a/man/terminology.1
+++ b/man/terminology.1
@@ -196,6 +196,10 @@ Scroll terminology one line up
 Scroll terminology one line down
 .
 .TP
+.B Shift+Home
+Scroll terminology to the top of the backlog
+.
+.TP
 .B Shift+Left
 Switch focus to previous terminal inside a window when using splits, or the
 previous tab.
diff --git a/src/bin/config.c b/src/bin/config.c
index d2c38948..fabfbe49 100644
--- a/src/bin/config.c
+++ b/src/bin/config.c
@@ -7,7 +7,7 @@
 #include "col.h"
 #include "utils.h"
 
-#define CONF_VER 12
+#define CONF_VER 13
 
 #define LIM(v, min, max) {if (v >= max) v = max; else if (v <= min) v = min;}
 
@@ -364,6 +364,7 @@ _add_default_keys(Config *config)
    ADD_KB("KP_Divide", 0, 0, 1, 0, "copy_clipboard");
    ADD_KB("Left", 0, 0, 1, 0, "term_prev");
    ADD_KB("Right", 0, 0, 1, 0, "term_next");
+   ADD_KB("Home", 0, 0, 1, 0, "top_backlog");
 }
 
 void
@@ -603,7 +604,10 @@ config_load(const char *key)
                   _add_key(config, "Left", 0, 0, 1, 0, "term_prev");
                   _add_key(config, "Right", 0, 0, 1, 0, "term_next");
                   /*pass through*/
-                case CONF_VER: /* 12 */
+                case 12:
+                  _add_key(config, "Home", 0, 0, 1, 0, "top_backlog");
+                  /*pass through*/
+                case CONF_VER: /* 13 */
                   config->version = CONF_VER;
                   break;
                 default:
diff --git a/src/bin/keyin.c b/src/bin/keyin.c
index d2b62fc4..e50be510 100644
--- a/src/bin/keyin.c
+++ b/src/bin/keyin.c
@@ -603,6 +603,18 @@ cb_scroll_down_line(Evas_Object *termio_obj)
    return EINA_TRUE;
 }
 
+static Eina_Bool
+cb_scroll_top_backlog(Evas_Object *termio_obj)
+{
+   Termpty *ty = termio_pty_get(termio_obj);
+
+   if (!ty || ty->altbuf)
+     return EINA_FALSE;
+
+   termio_scroll_top_backlog(termio_obj);
+   return EINA_TRUE;
+}
+
 
 static Shortcut_Action _actions[] =
 {
@@ -611,6 +623,7 @@ static Shortcut_Action _actions[] =
      {"one_page_down", gettext_noop("Scroll one page down"), cb_scroll_down_page},
      {"one_line_up", gettext_noop("Scroll one line up"), cb_scroll_up_line},
      {"one_line_down", gettext_noop("Scroll one line down"), cb_scroll_down_line},
+     {"top_backlog", gettext_noop("Go to the top of the backlog"), cb_scroll_top_backlog},
 
      {"group", gettext_noop("Copy/Paste"), NULL},
      {"copy_primary", gettext_noop("Copy selection to Primary buffer"), cb_copy_primary},
diff --git a/src/bin/termio.c b/src/bin/termio.c
index 77100bcb..9ec14449 100644
--- a/src/bin/termio.c
+++ b/src/bin/termio.c
@@ -342,6 +342,16 @@ termio_scroll_set(Evas_Object *obj, int scroll)
    _smart_apply(obj);
 }
 
+void
+termio_scroll_top_backlog(Evas_Object *obj)
+{
+   Termio *sd = evas_object_smart_data_get(obj);
+   EINA_SAFETY_ON_NULL_RETURN(sd);
+   sd->scroll = INT32_MAX;
+   _remove_links(sd, obj);
+   _smart_apply(obj);
+}
+
 const char *
 termio_title_get(Evas_Object *obj)
 {
diff --git a/src/bin/termio.h b/src/bin/termio.h
index 3b660e99..0567de6d 100644
--- a/src/bin/termio.h
+++ b/src/bin/termio.h
@@ -14,6 +14,7 @@ char        *termio_selection_get(Evas_Object *obj,
                                   int c1x, int c1y, int c2x, int c2y,
                                   size_t *len, Eina_Bool right_trim);
 Eina_Bool    termio_selection_exists(const Evas_Object *obj);
+void termio_scroll_top_backlog(Evas_Object *obj);
 void termio_scroll_delta(Evas_Object *obj, int delta, int by_page);
 void termio_scroll_set(Evas_Object *obj, int scroll);
 void termio_scroll(Evas_Object *obj, int direction, int start_y, int end_y);