From 8dad4e51e4e5cc190d84a266f0a48054f4df8cc4 Mon Sep 17 00:00:00 2001
From: Jonatan Vela <jonatan.vela@gmx.net>
Date: Tue, 17 Jan 2017 02:06:29 +0100
Subject: [PATCH] Support vim movements: H M L

Vim movements H, M and L implemented and documented.
---
 README.rst    |  6 ++++++
 man/termite.1 |  6 ++++++
 termite.cc    | 26 ++++++++++++++++++++++++++
 3 files changed, 38 insertions(+)

diff --git a/README.rst b/README.rst
index 62e41ab..730afd8 100644
--- a/README.rst
+++ b/README.rst
@@ -118,6 +118,12 @@ SELECTION MODE
 +-----------------------------------+-----------------------------------------------------------+
 | ``B`` or ``ctrl-left``            | backward WORD (non-whitespace)                            |
 +-----------------------------------+-----------------------------------------------------------+
+| ``H``                             | jump to the top of the screen                             |
++-----------------------------------+-----------------------------------------------------------+
+| ``M``                             | jump to the middle of the screen                          |
++-----------------------------------+-----------------------------------------------------------+
+| ``L``                             | jump to the bottom of the screen                          |
++-----------------------------------+-----------------------------------------------------------+
 | ``0`` or ``home``                 | move cursor to the first column in the row                |
 +-----------------------------------+-----------------------------------------------------------+
 | ``^``                             | beginning-of-line (first non-blank character)             |
diff --git a/man/termite.1 b/man/termite.1
index a007889..93fb29d 100644
--- a/man/termite.1
+++ b/man/termite.1
@@ -109,6 +109,12 @@ forward \fIWORD\fP (non-whitespace)
 forward to end of \fIWORD\fP (non-whitespace)
 .IP "\fBB\fP or \fBctrl-left\fP"
 backward \fIWORD\fP (non-whitespace)
+.IP "\fBH\fP"
+move cursor to the top of the screen
+.IP "\fBM\fP"
+move cursor to the middle of the screen
+.IP "\fBL\fP"
+move cursor to the bottom of the screen
 .IP "\fB0\fP or \fBhome\fP"
 move cursor to the first column in the row\fP"
 .IP "\fB^\fP"
diff --git a/termite.cc b/termite.cc
index 1b10691..6055963 100644
--- a/termite.cc
+++ b/termite.cc
@@ -507,6 +507,23 @@ static long last_row(VteTerminal *vte) {
     return (long)gtk_adjustment_get_upper(adjust) - 1;
 }
 
+static long top_row(VteTerminal *vte) {
+    GtkAdjustment *adjust = gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(vte));
+    return (long)gtk_adjustment_get_value(adjust);
+}
+
+static long middle_row(VteTerminal *vte) {
+    GtkAdjustment *adjust = gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(vte));
+    return (long)gtk_adjustment_get_value(adjust) +
+                (long)vte_terminal_get_row_count(vte) / 2;
+}
+
+static long bottom_row(VteTerminal *vte) {
+    GtkAdjustment *adjust = gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(vte));
+    return (long)gtk_adjustment_get_value(adjust) +
+                (long)vte_terminal_get_row_count(vte) - 1;
+}
+
 static void update_scroll(VteTerminal *vte) {
     GtkAdjustment *adjust = gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(vte));
     const double scroll_row = gtk_adjustment_get_value(adjust);
@@ -894,6 +911,15 @@ gboolean key_press_cb(VteTerminal *vte, GdkEventKey *event, keybind_info *info)
             case GDK_KEY_G:
                 move_to_row_start(vte, &info->select, last_row(vte));
                 break;
+            case GDK_KEY_H:
+                move_to_row_start(vte, &info->select, top_row(vte));
+                break;
+            case GDK_KEY_M:
+                move_to_row_start(vte, &info->select, middle_row(vte));
+                break;
+            case GDK_KEY_L:
+                move_to_row_start(vte, &info->select, bottom_row(vte));
+                break;
             case GDK_KEY_v:
                 toggle_visual(vte, &info->select, vi_mode::visual);
                 break;