Add user interface module

4 files changed, 893 insertions, 0 deletions

diff --git a/config/st-config.h b/config/st-config.h
new file mode 100644
index 00000000..11e17954
--- /dev/null
+++ b/config/st-config.h
@@ -0,0 +1,461 @@
+/* See LICENSE file for copyright and license details. */
+
+/*
+ * appearance
+ *
+ * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
+ */
+static char font[] = "Liberation Mono:pixelsize=16:antialias=true:autohint=false";
+static int borderpx = 2;
+#define histsize 2000
+
+/*
+ * What program is execed by st depends of these precedence rules:
+ * 1: program passed with -e
+ * 2: utmp option
+ * 3: SHELL environment variable
+ * 4: value of shell in /etc/passwd
+ * 5: value of shell in config.h
+ */
+static char shell[] = "/bin/sh";
+static char *utmp = NULL;
+static char stty_args[] = "stty raw pass8 nl -echo -iexten -cstopb 38400";
+
+/* identification sequence returned in DA and DECID */
+static char vtiden[] = "\033[?6c";
+
+/* Kerning / character bounding-box multipliers */
+static float cwscale = 1.0;
+static float chscale = 1.0;
+
+/*
+ * word delimiter string
+ *
+ * More advanced example: " `'\"()[]{}"
+ */
+static char worddelimiters[] = " ";
+
+/* selection timeouts (in milliseconds) */
+static unsigned int doubleclicktimeout = 300;
+static unsigned int tripleclicktimeout = 600;
+
+/* alt screens */
+static int allowaltscreen = 1;
+
+/* frames per second st should at maximum draw to the screen */
+static unsigned int xfps = 120;
+static unsigned int actionfps = 30;
+
+/*
+ * blinking timeout (set to 0 to disable blinking) for the terminal blinking
+ * attribute.
+ */
+static unsigned int blinktimeout = 800;
+
+/*
+ * thickness of underline and bar cursors
+ */
+static unsigned int cursorthickness = 2;
+
+/*
+ * bell volume. It must be a value between -100 and 100. Use 0 for disabling
+ * it
+ */
+static int bellvolume = 0;
+
+/* default TERM value */
+static char termname[] = "st-meta-256color";
+
+/*
+ * spaces per tab
+ *
+ * When you are changing this value, don't forget to adapt the »it« value in
+ * the st.info and appropriately install the st.info in the environment where
+ * you use this st version.
+ *
+ *	it#$tabspaces,
+ *
+ * Secondly make sure your kernel is not expanding tabs. When running `stty
+ * -a` »tab0« should appear. You can tell the terminal to not expand tabs by
+ *  running following command:
+ *
+ *	stty tabs
+ */
+static unsigned int tabspaces = 8;
+
+/* Terminal colors (16 first used in escape sequence) */
+static const char *colorname[] = {
+	/* solarized light */
+	/* "#eee8d5",  /\*  0: black    *\/ */
+	/* "#dc322f",  /\*  1: red      *\/ */
+	/* "#859900",  /\*  2: green    *\/ */
+	/* "#b58900",  /\*  3: yellow   *\/ */
+	/* "#268bd2",  /\*  4: blue     *\/ */
+	/* "#d33682",  /\*  5: magenta  *\/ */
+	/* "#2aa198",  /\*  6: cyan     *\/ */
+	/* "#073642",  /\*  7: white    *\/ */
+	/* "#fdf6e3",  /\*  8: brblack  *\/ */
+	/* "#cb4b16",  /\*  9: brred    *\/ */
+	/* "#93a1a1",  /\* 10: brgreen  *\/ */
+	/* "#839496",  /\* 11: bryellow *\/ */
+	/* "#657b83",  /\* 12: brblue   *\/ */
+	/* "#6c71c4",  /\* 13: brmagenta*\/ */
+	/* "#586e75",  /\* 14: brcyan   *\/ */
+	/* "#002b36",  /\* 15: brwhite  *\/ */
+
+	"#000000",  /*  0: black    */
+	"#9e1828",  /*  1: red      */
+	"#5cb247",  /*  2: green    */
+	"#968a38",  /*  3: yellow   */
+	"#4161a0",  /*  4: blue     */
+	"#9b768e",  /*  5: magenta  */
+	"#419189",  /*  6: cyan     */
+	"#bebebe",  /*  7: white    */
+	"#666666",  /*  8: brblack  */
+	"#cf6171",  /*  9: brred    */
+	"#c5f779",  /* 10: brgreen  */
+	"#fff796",  /* 11: bryellow */
+	"#4186be",  /* 12: brblue   */
+	"#cf9ebe",  /* 13: brmagenta*/
+	"#71bebe",  /* 14: brcyan   */
+	"#ffffff",  /* 15: brwhite  */
+};
+
+
+/*
+ * Default colors (colorname index)
+ * foreground, background, cursor
+ */
+static unsigned int defaultfg = 0;
+static unsigned int defaultbg = 15;
+static unsigned int defaultcs = 8;
+
+/*
+ * Default colors (colorname index)
+ * foreground, background, cursor, reverse cursor
+ */
+static unsigned int defaultrcs = 257;
+
+/*
+ * Default shape of cursor
+ * 2: Block ("█")
+ * 4: Underline ("_")
+ * 6: Bar ("|")
+ * 7: Snowman ("☃")
+ */
+static unsigned int cursorshape = 2;
+
+/*
+ * Default colour and shape of the mouse cursor
+ */
+static unsigned int mouseshape = XC_xterm;
+static unsigned int mousefg = 7;
+static unsigned int mousebg = 0;
+
+/*
+ * Colors used, when the specific fg == defaultfg. So in reverse mode this
+ * will reverse too. Another logic would only make the simple feature too
+ * complex.
+ */
+static unsigned int defaultitalic = 11;
+static unsigned int defaultunderline = 7;
+
+/*
+ * Internal mouse shortcuts.
+ * Beware that overloading Button1 will disable the selection.
+ */
+static MouseShortcut mshortcuts[] = {
+	/* button               mask            string */
+	{ Button4,              XK_ANY_MOD,     "\031" },
+	{ Button5,              XK_ANY_MOD,     "\005" },
+};
+
+/* Internal keyboard shortcuts. */
+#define MODKEY Mod1Mask
+
+static Shortcut shortcuts[] = {
+	/* mask                 keysym          function        argument */
+	{ XK_ANY_MOD,           XK_Break,       sendbreak,      {.i =  0} },
+	{ ControlMask,          XK_Print,       toggleprinter,  {.i =  0} },
+	{ ShiftMask,            XK_Print,       printscreen,    {.i =  0} },
+	{ XK_ANY_MOD,           XK_Print,       printsel,       {.i =  0} },
+	{ MODKEY|ShiftMask,     XK_Prior,       xzoom,          {.f = +1} },
+	{ MODKEY|ShiftMask,     XK_Next,        xzoom,          {.f = -1} },
+	{ MODKEY|ShiftMask,     XK_Home,        xzoomreset,     {.f =  0} },
+	{ ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
+	{ MODKEY|ShiftMask,     XK_Insert,      clippaste,      {.i =  0} },
+	{ MODKEY|ShiftMask,     XK_C,           clipcopy,       {.i =  0} },
+	{ MODKEY|ShiftMask,     XK_V,           clippaste,      {.i =  0} },
+	{ MODKEY,               XK_Num_Lock,    numlock,        {.i =  0} },
+	{ ShiftMask,            XK_Page_Up,     kscrollup,      {.i = -1} },
+	{ ShiftMask,            XK_Page_Down,   kscrolldown,    {.i = -1} },
+
+};
+
+/*
+ * Special keys (change & recompile st.info accordingly)
+ *
+ * Mask value:
+ * * Use XK_ANY_MOD to match the key no matter modifiers state
+ * * Use XK_NO_MOD to match the key alone (no modifiers)
+ * appkey value:
+ * * 0: no value
+ * * > 0: keypad application mode enabled
+ * *   = 2: term.numlock = 1
+ * * < 0: keypad application mode disabled
+ * appcursor value:
+ * * 0: no value
+ * * > 0: cursor application mode enabled
+ * * < 0: cursor application mode disabled
+ * crlf value
+ * * 0: no value
+ * * > 0: crlf mode is enabled
+ * * < 0: crlf mode is disabled
+ *
+ * Be careful with the order of the definitions because st searches in
+ * this table sequentially, so any XK_ANY_MOD must be in the last
+ * position for a key.
+ */
+
+/*
+ * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
+ * to be mapped below, add them to this array.
+ */
+static KeySym mappedkeys[] = { -1 };
+
+/*
+ * State bits to ignore when matching key or button events.  By default,
+ * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
+ */
+static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
+
+/*
+ * Override mouse-select while mask is active (when MODE_MOUSE is set).
+ * Note that if you want to use ShiftMask with selmasks, set this to an other
+ * modifier, set to 0 to not use it.
+ */
+static uint forceselmod = ShiftMask;
+
+/*
+ * This is the huge key array which defines all compatibility to the Linux
+ * world. Please decide about changes wisely.
+ */
+static Key key[] = {
+	/* keysym           mask            string      appkey appcursor crlf */
+	{ XK_KP_Home,       ShiftMask,      "\033[2J",       0,   -1,    0},
+	{ XK_KP_Home,       ShiftMask,      "\033[1;2H",     0,   +1,    0},
+	{ XK_KP_Home,       XK_ANY_MOD,     "\033[H",        0,   -1,    0},
+	{ XK_KP_Home,       XK_ANY_MOD,     "\033[1~",       0,   +1,    0},
+	{ XK_KP_Up,         XK_ANY_MOD,     "\033Ox",       +1,    0,    0},
+	{ XK_KP_Up,         XK_ANY_MOD,     "\033[A",        0,   -1,    0},
+	{ XK_KP_Up,         XK_ANY_MOD,     "\033OA",        0,   +1,    0},
+	{ XK_KP_Down,       XK_ANY_MOD,     "\033Or",       +1,    0,    0},
+	{ XK_KP_Down,       XK_ANY_MOD,     "\033[B",        0,   -1,    0},
+	{ XK_KP_Down,       XK_ANY_MOD,     "\033OB",        0,   +1,    0},
+	{ XK_KP_Left,       XK_ANY_MOD,     "\033Ot",       +1,    0,    0},
+	{ XK_KP_Left,       XK_ANY_MOD,     "\033[D",        0,   -1,    0},
+	{ XK_KP_Left,       XK_ANY_MOD,     "\033OD",        0,   +1,    0},
+	{ XK_KP_Right,      XK_ANY_MOD,     "\033Ov",       +1,    0,    0},
+	{ XK_KP_Right,      XK_ANY_MOD,     "\033[C",        0,   -1,    0},
+	{ XK_KP_Right,      XK_ANY_MOD,     "\033OC",        0,   +1,    0},
+	{ XK_KP_Prior,      ShiftMask,      "\033[5;2~",     0,    0,    0},
+	{ XK_KP_Prior,      XK_ANY_MOD,     "\033[5~",       0,    0,    0},
+	{ XK_KP_Begin,      XK_ANY_MOD,     "\033[E",        0,    0,    0},
+	{ XK_KP_End,        ControlMask,    "\033[J",       -1,    0,    0},
+	{ XK_KP_End,        ControlMask,    "\033[1;5F",    +1,    0,    0},
+	{ XK_KP_End,        ShiftMask,      "\033[K",       -1,    0,    0},
+	{ XK_KP_End,        ShiftMask,      "\033[1;2F",    +1,    0,    0},
+	{ XK_KP_End,        XK_ANY_MOD,     "\033[4~",       0,    0,    0},
+	{ XK_KP_Next,       ShiftMask,      "\033[6;2~",     0,    0,    0},
+	{ XK_KP_Next,       XK_ANY_MOD,     "\033[6~",       0,    0,    0},
+	{ XK_KP_Insert,     ShiftMask,      "\033[2;2~",    +1,    0,    0},
+	{ XK_KP_Insert,     ShiftMask,      "\033[4l",      -1,    0,    0},
+	{ XK_KP_Insert,     ControlMask,    "\033[L",       -1,    0,    0},
+	{ XK_KP_Insert,     ControlMask,    "\033[2;5~",    +1,    0,    0},
+	{ XK_KP_Insert,     XK_ANY_MOD,     "\033[4h",      -1,    0,    0},
+	{ XK_KP_Insert,     XK_ANY_MOD,     "\033[2~",      +1,    0,    0},
+	{ XK_KP_Delete,     ControlMask,    "\033[M",       -1,    0,    0},
+	{ XK_KP_Delete,     ControlMask,    "\033[3;5~",    +1,    0,    0},
+	{ XK_KP_Delete,     ShiftMask,      "\033[2K",      -1,    0,    0},
+	{ XK_KP_Delete,     ShiftMask,      "\033[3;2~",    +1,    0,    0},
+	{ XK_KP_Delete,     XK_ANY_MOD,     "\033[P",       -1,    0,    0},
+	{ XK_KP_Delete,     XK_ANY_MOD,     "\033[3~",      +1,    0,    0},
+	{ XK_KP_Multiply,   XK_ANY_MOD,     "\033Oj",       +2,    0,    0},
+	{ XK_KP_Add,        XK_ANY_MOD,     "\033Ok",       +2,    0,    0},
+	{ XK_KP_Enter,      XK_ANY_MOD,     "\033OM",       +2,    0,    0},
+	{ XK_KP_Enter,      XK_ANY_MOD,     "\r",           -1,    0,   -1},
+	{ XK_KP_Enter,      XK_ANY_MOD,     "\r\n",         -1,    0,   +1},
+	{ XK_KP_Subtract,   XK_ANY_MOD,     "\033Om",       +2,    0,    0},
+	{ XK_KP_Decimal,    XK_ANY_MOD,     "\033On",       +2,    0,    0},
+	{ XK_KP_Divide,     XK_ANY_MOD,     "\033Oo",       +2,    0,    0},
+	{ XK_KP_0,          XK_ANY_MOD,     "\033Op",       +2,    0,    0},
+	{ XK_KP_1,          XK_ANY_MOD,     "\033Oq",       +2,    0,    0},
+	{ XK_KP_2,          XK_ANY_MOD,     "\033Or",       +2,    0,    0},
+	{ XK_KP_3,          XK_ANY_MOD,     "\033Os",       +2,    0,    0},
+	{ XK_KP_4,          XK_ANY_MOD,     "\033Ot",       +2,    0,    0},
+	{ XK_KP_5,          XK_ANY_MOD,     "\033Ou",       +2,    0,    0},
+	{ XK_KP_6,          XK_ANY_MOD,     "\033Ov",       +2,    0,    0},
+	{ XK_KP_7,          XK_ANY_MOD,     "\033Ow",       +2,    0,    0},
+	{ XK_KP_8,          XK_ANY_MOD,     "\033Ox",       +2,    0,    0},
+	{ XK_KP_9,          XK_ANY_MOD,     "\033Oy",       +2,    0,    0},
+	{ XK_Up,            ShiftMask,      "\033[1;2A",     0,    0,    0},
+	{ XK_Up,            ControlMask,    "\033[1;5A",     0,    0,    0},
+	{ XK_Up,            Mod1Mask,       "\033[1;3A",     0,    0,    0},
+	{ XK_Up,            XK_ANY_MOD,     "\033[A",        0,   -1,    0},
+	{ XK_Up,            XK_ANY_MOD,     "\033OA",        0,   +1,    0},
+	{ XK_Down,          ShiftMask,      "\033[1;2B",     0,    0,    0},
+	{ XK_Down,          ControlMask,    "\033[1;5B",     0,    0,    0},
+	{ XK_Down,          Mod1Mask,       "\033[1;3B",     0,    0,    0},
+	{ XK_Down,          XK_ANY_MOD,     "\033[B",        0,   -1,    0},
+	{ XK_Down,          XK_ANY_MOD,     "\033OB",        0,   +1,    0},
+	{ XK_Left,          ShiftMask,      "\033[1;2D",     0,    0,    0},
+	{ XK_Left,          ControlMask,    "\033[1;5D",     0,    0,    0},
+	{ XK_Left,          Mod1Mask,       "\033[1;3D",     0,    0,    0},
+	{ XK_Left,          XK_ANY_MOD,     "\033[D",        0,   -1,    0},
+	{ XK_Left,          XK_ANY_MOD,     "\033OD",        0,   +1,    0},
+	{ XK_Right,         ShiftMask,      "\033[1;2C",     0,    0,    0},
+	{ XK_Right,         ControlMask,    "\033[1;5C",     0,    0,    0},
+	{ XK_Right,         Mod1Mask,       "\033[1;3C",     0,    0,    0},
+	{ XK_Right,         XK_ANY_MOD,     "\033[C",        0,   -1,    0},
+	{ XK_Right,         XK_ANY_MOD,     "\033OC",        0,   +1,    0},
+	{ XK_ISO_Left_Tab,  ShiftMask,      "\033[Z",        0,    0,    0},
+	{ XK_Return,        Mod1Mask,       "\033\r",        0,    0,   -1},
+	{ XK_Return,        Mod1Mask,       "\033\r\n",      0,    0,   +1},
+	{ XK_Return,        XK_ANY_MOD,     "\r",            0,    0,   -1},
+	{ XK_Return,        XK_ANY_MOD,     "\r\n",          0,    0,   +1},
+	{ XK_Insert,        ShiftMask,      "\033[4l",      -1,    0,    0},
+	{ XK_Insert,        ShiftMask,      "\033[2;2~",    +1,    0,    0},
+	{ XK_Insert,        ControlMask,    "\033[L",       -1,    0,    0},
+	{ XK_Insert,        ControlMask,    "\033[2;5~",    +1,    0,    0},
+	{ XK_Insert,        XK_ANY_MOD,     "\033[4h",      -1,    0,    0},
+	{ XK_Insert,        XK_ANY_MOD,     "\033[2~",      +1,    0,    0},
+	{ XK_Delete,        ControlMask,    "\033[M",       -1,    0,    0},
+	{ XK_Delete,        ControlMask,    "\033[3;5~",    +1,    0,    0},
+	{ XK_Delete,        ShiftMask,      "\033[2K",      -1,    0,    0},
+	{ XK_Delete,        ShiftMask,      "\033[3;2~",    +1,    0,    0},
+	{ XK_Delete,        XK_ANY_MOD,     "\033[P",       -1,    0,    0},
+	{ XK_Delete,        XK_ANY_MOD,     "\033[3~",      +1,    0,    0},
+	{ XK_BackSpace,     XK_NO_MOD,      "\177",          0,    0,    0},
+	{ XK_BackSpace,     Mod1Mask,       "\033\177",      0,    0,    0},
+	{ XK_Home,          ShiftMask,      "\033[2J",       0,   -1,    0},
+	{ XK_Home,          ShiftMask,      "\033[1;2H",     0,   +1,    0},
+	{ XK_Home,          XK_ANY_MOD,     "\033[H",        0,   -1,    0},
+	{ XK_Home,          XK_ANY_MOD,     "\033[1~",       0,   +1,    0},
+	{ XK_End,           ControlMask,    "\033[J",       -1,    0,    0},
+	{ XK_End,           ControlMask,    "\033[1;5F",    +1,    0,    0},
+	{ XK_End,           ShiftMask,      "\033[K",       -1,    0,    0},
+	{ XK_End,           ShiftMask,      "\033[1;2F",    +1,    0,    0},
+	{ XK_End,           XK_ANY_MOD,     "\033[4~",       0,    0,    0},
+	{ XK_Prior,         ControlMask,    "\033[5;5~",     0,    0,    0},
+	{ XK_Prior,         ShiftMask,      "\033[5;2~",     0,    0,    0},
+	{ XK_Prior,         XK_ANY_MOD,     "\033[5~",       0,    0,    0},
+	{ XK_Next,          ControlMask,    "\033[6;5~",     0,    0,    0},
+	{ XK_Next,          ShiftMask,      "\033[6;2~",     0,    0,    0},
+	{ XK_Next,          XK_ANY_MOD,     "\033[6~",       0,    0,    0},
+	{ XK_F1,            XK_NO_MOD,      "\033OP" ,       0,    0,    0},
+	{ XK_F1, /* F13 */  ShiftMask,      "\033[1;2P",     0,    0,    0},
+	{ XK_F1, /* F25 */  ControlMask,    "\033[1;5P",     0,    0,    0},
+	{ XK_F1, /* F37 */  Mod4Mask,       "\033[1;6P",     0,    0,    0},
+	{ XK_F1, /* F49 */  Mod1Mask,       "\033[1;3P",     0,    0,    0},
+	{ XK_F1, /* F61 */  Mod3Mask,       "\033[1;4P",     0,    0,    0},
+	{ XK_F2,            XK_NO_MOD,      "\033OQ" ,       0,    0,    0},
+	{ XK_F2, /* F14 */  ShiftMask,      "\033[1;2Q",     0,    0,    0},
+	{ XK_F2, /* F26 */  ControlMask,    "\033[1;5Q",     0,    0,    0},
+	{ XK_F2, /* F38 */  Mod4Mask,       "\033[1;6Q",     0,    0,    0},
+	{ XK_F2, /* F50 */  Mod1Mask,       "\033[1;3Q",     0,    0,    0},
+	{ XK_F2, /* F62 */  Mod3Mask,       "\033[1;4Q",     0,    0,    0},
+	{ XK_F3,            XK_NO_MOD,      "\033OR" ,       0,    0,    0},
+	{ XK_F3, /* F15 */  ShiftMask,      "\033[1;2R",     0,    0,    0},
+	{ XK_F3, /* F27 */  ControlMask,    "\033[1;5R",     0,    0,    0},
+	{ XK_F3, /* F39 */  Mod4Mask,       "\033[1;6R",     0,    0,    0},
+	{ XK_F3, /* F51 */  Mod1Mask,       "\033[1;3R",     0,    0,    0},
+	{ XK_F3, /* F63 */  Mod3Mask,       "\033[1;4R",     0,    0,    0},
+	{ XK_F4,            XK_NO_MOD,      "\033OS" ,       0,    0,    0},
+	{ XK_F4, /* F16 */  ShiftMask,      "\033[1;2S",     0,    0,    0},
+	{ XK_F4, /* F28 */  ControlMask,    "\033[1;5S",     0,    0,    0},
+	{ XK_F4, /* F40 */  Mod4Mask,       "\033[1;6S",     0,    0,    0},
+	{ XK_F4, /* F52 */  Mod1Mask,       "\033[1;3S",     0,    0,    0},
+	{ XK_F5,            XK_NO_MOD,      "\033[15~",      0,    0,    0},
+	{ XK_F5, /* F17 */  ShiftMask,      "\033[15;2~",    0,    0,    0},
+	{ XK_F5, /* F29 */  ControlMask,    "\033[15;5~",    0,    0,    0},
+	{ XK_F5, /* F41 */  Mod4Mask,       "\033[15;6~",    0,    0,    0},
+	{ XK_F5, /* F53 */  Mod1Mask,       "\033[15;3~",    0,    0,    0},
+	{ XK_F6,            XK_NO_MOD,      "\033[17~",      0,    0,    0},
+	{ XK_F6, /* F18 */  ShiftMask,      "\033[17;2~",    0,    0,    0},
+	{ XK_F6, /* F30 */  ControlMask,    "\033[17;5~",    0,    0,    0},
+	{ XK_F6, /* F42 */  Mod4Mask,       "\033[17;6~",    0,    0,    0},
+	{ XK_F6, /* F54 */  Mod1Mask,       "\033[17;3~",    0,    0,    0},
+	{ XK_F7,            XK_NO_MOD,      "\033[18~",      0,    0,    0},
+	{ XK_F7, /* F19 */  ShiftMask,      "\033[18;2~",    0,    0,    0},
+	{ XK_F7, /* F31 */  ControlMask,    "\033[18;5~",    0,    0,    0},
+	{ XK_F7, /* F43 */  Mod4Mask,       "\033[18;6~",    0,    0,    0},
+	{ XK_F7, /* F55 */  Mod1Mask,       "\033[18;3~",    0,    0,    0},
+	{ XK_F8,            XK_NO_MOD,      "\033[19~",      0,    0,    0},
+	{ XK_F8, /* F20 */  ShiftMask,      "\033[19;2~",    0,    0,    0},
+	{ XK_F8, /* F32 */  ControlMask,    "\033[19;5~",    0,    0,    0},
+	{ XK_F8, /* F44 */  Mod4Mask,       "\033[19;6~",    0,    0,    0},
+	{ XK_F8, /* F56 */  Mod1Mask,       "\033[19;3~",    0,    0,    0},
+	{ XK_F9,            XK_NO_MOD,      "\033[20~",      0,    0,    0},
+	{ XK_F9, /* F21 */  ShiftMask,      "\033[20;2~",    0,    0,    0},
+	{ XK_F9, /* F33 */  ControlMask,    "\033[20;5~",    0,    0,    0},
+	{ XK_F9, /* F45 */  Mod4Mask,       "\033[20;6~",    0,    0,    0},
+	{ XK_F9, /* F57 */  Mod1Mask,       "\033[20;3~",    0,    0,    0},
+	{ XK_F10,           XK_NO_MOD,      "\033[21~",      0,    0,    0},
+	{ XK_F10, /* F22 */ ShiftMask,      "\033[21;2~",    0,    0,    0},
+	{ XK_F10, /* F34 */ ControlMask,    "\033[21;5~",    0,    0,    0},
+	{ XK_F10, /* F46 */ Mod4Mask,       "\033[21;6~",    0,    0,    0},
+	{ XK_F10, /* F58 */ Mod1Mask,       "\033[21;3~",    0,    0,    0},
+	{ XK_F11,           XK_NO_MOD,      "\033[23~",      0,    0,    0},
+	{ XK_F11, /* F23 */ ShiftMask,      "\033[23;2~",    0,    0,    0},
+	{ XK_F11, /* F35 */ ControlMask,    "\033[23;5~",    0,    0,    0},
+	{ XK_F11, /* F47 */ Mod4Mask,       "\033[23;6~",    0,    0,    0},
+	{ XK_F11, /* F59 */ Mod1Mask,       "\033[23;3~",    0,    0,    0},
+	{ XK_F12,           XK_NO_MOD,      "\033[24~",      0,    0,    0},
+	{ XK_F12, /* F24 */ ShiftMask,      "\033[24;2~",    0,    0,    0},
+	{ XK_F12, /* F36 */ ControlMask,    "\033[24;5~",    0,    0,    0},
+	{ XK_F12, /* F48 */ Mod4Mask,       "\033[24;6~",    0,    0,    0},
+	{ XK_F12, /* F60 */ Mod1Mask,       "\033[24;3~",    0,    0,    0},
+	{ XK_F13,           XK_NO_MOD,      "\033[1;2P",     0,    0,    0},
+	{ XK_F14,           XK_NO_MOD,      "\033[1;2Q",     0,    0,    0},
+	{ XK_F15,           XK_NO_MOD,      "\033[1;2R",     0,    0,    0},
+	{ XK_F16,           XK_NO_MOD,      "\033[1;2S",     0,    0,    0},
+	{ XK_F17,           XK_NO_MOD,      "\033[15;2~",    0,    0,    0},
+	{ XK_F18,           XK_NO_MOD,      "\033[17;2~",    0,    0,    0},
+	{ XK_F19,           XK_NO_MOD,      "\033[18;2~",    0,    0,    0},
+	{ XK_F20,           XK_NO_MOD,      "\033[19;2~",    0,    0,    0},
+	{ XK_F21,           XK_NO_MOD,      "\033[20;2~",    0,    0,    0},
+	{ XK_F22,           XK_NO_MOD,      "\033[21;2~",    0,    0,    0},
+	{ XK_F23,           XK_NO_MOD,      "\033[23;2~",    0,    0,    0},
+	{ XK_F24,           XK_NO_MOD,      "\033[24;2~",    0,    0,    0},
+	{ XK_F25,           XK_NO_MOD,      "\033[1;5P",     0,    0,    0},
+	{ XK_F26,           XK_NO_MOD,      "\033[1;5Q",     0,    0,    0},
+	{ XK_F27,           XK_NO_MOD,      "\033[1;5R",     0,    0,    0},
+	{ XK_F28,           XK_NO_MOD,      "\033[1;5S",     0,    0,    0},
+	{ XK_F29,           XK_NO_MOD,      "\033[15;5~",    0,    0,    0},
+	{ XK_F30,           XK_NO_MOD,      "\033[17;5~",    0,    0,    0},
+	{ XK_F31,           XK_NO_MOD,      "\033[18;5~",    0,    0,    0},
+	{ XK_F32,           XK_NO_MOD,      "\033[19;5~",    0,    0,    0},
+	{ XK_F33,           XK_NO_MOD,      "\033[20;5~",    0,    0,    0},
+	{ XK_F34,           XK_NO_MOD,      "\033[21;5~",    0,    0,    0},
+	{ XK_F35,           XK_NO_MOD,      "\033[23;5~",    0,    0,    0},
+};
+
+/*
+ * Selection types' masks.
+ * Use the same masks as usual.
+ * Button1Mask is always unset, to make masks match between ButtonPress.
+ * ButtonRelease and MotionNotify.
+ * If no match is found, regular selection is used.
+ */
+static uint selmasks[] = {
+	[SEL_RECTANGULAR] = Mod1Mask,
+};
+
+/*
+ * Printable characters in ASCII, used to estimate the advance width
+ * of single wide characters.
+ */
+static char ascii_printable[] =
+	" !\"#$%&'()*+,-./0123456789:;<=>?"
+	"@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
+	"`abcdefghijklmnopqrstuvwxyz{|}~";
diff --git a/config/st-scrollback-0.7.diff b/config/st-scrollback-0.7.diff
new file mode 100644
index 00000000..3f23f872
--- /dev/null
+++ b/config/st-scrollback-0.7.diff
@@ -0,0 +1,387 @@
+diff --git a/config.def.h b/config.def.h
+index b41747f..eae969e 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -7,6 +7,7 @@
+  */
+ static char font[] = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
+ static int borderpx = 2;
++#define histsize 2000
+ 
+ /*
+  * What program is execed by st depends of these precedence rules:
+@@ -172,6 +173,8 @@ static Shortcut shortcuts[] = {
+ 	{ MODKEY|ShiftMask,     XK_C,           clipcopy,       {.i =  0} },
+ 	{ MODKEY|ShiftMask,     XK_V,           clippaste,      {.i =  0} },
+ 	{ MODKEY,               XK_Num_Lock,    numlock,        {.i =  0} },
++	{ ShiftMask,            XK_Page_Up,     kscrollup,      {.i = -1} },
++	{ ShiftMask,            XK_Page_Down,   kscrolldown,    {.i = -1} },
+ };
+ 
+ /*
+diff --git a/st.c b/st.c
+index 2594c65..233d301 100644
+--- a/st.c
++++ b/st.c
+@@ -86,6 +86,8 @@ char *argv0;
+ #define TRUERED(x)		(((x) & 0xff0000) >> 8)
+ #define TRUEGREEN(x)		(((x) & 0xff00))
+ #define TRUEBLUE(x)		(((x) & 0xff) << 8)
++#define TLINE(y)		((y) < term.scr ? term.hist[((y) + term.histi - term.scr \
++				+ histsize + 1) % histsize] : term.line[(y) - term.scr])
+ 
+ 
+ enum glyph_attribute {
+@@ -228,26 +230,6 @@ typedef struct {
+ 	int narg;              /* nb of args */
+ } STREscape;
+ 
+-/* Internal representation of the screen */
+-typedef struct {
+-	int row;      /* nb row */
+-	int col;      /* nb col */
+-	Line *line;   /* screen */
+-	Line *alt;    /* alternate screen */
+-	int *dirty;  /* dirtyness of lines */
+-	XftGlyphFontSpec *specbuf; /* font spec buffer used for rendering */
+-	TCursor c;    /* cursor */
+-	int top;      /* top    scroll limit */
+-	int bot;      /* bottom scroll limit */
+-	int mode;     /* terminal mode flags */
+-	int esc;      /* escape state flags */
+-	char trantbl[4]; /* charset table translation */
+-	int charset;  /* current charset */
+-	int icharset; /* selected charset for sequence */
+-	int numlock; /* lock numbers in keyboard */
+-	int *tabs;
+-} Term;
+-
+ /* Purely graphic info */
+ typedef struct {
+ 	Display *dpy;
+@@ -327,6 +309,8 @@ typedef struct {
+ /* function definitions used in config.h */
+ static void clipcopy(const Arg *);
+ static void clippaste(const Arg *);
++static void kscrolldown(const Arg *);
++static void kscrollup(const Arg *);
+ static void numlock(const Arg *);
+ static void selpaste(const Arg *);
+ static void xzoom(const Arg *);
+@@ -340,6 +324,29 @@ static void sendbreak(const Arg *);
+ /* Config.h for applying patches and the configuration. */
+ #include "config.h"
+ 
++/* Internal representation of the screen */
++typedef struct {
++	int row;      /* nb row */
++	int col;      /* nb col */
++	Line *line;   /* screen */
++	Line *alt;    /* alternate screen */
++	Line hist[histsize]; /* history buffer */
++	int histi;    /* history index */
++	int scr;      /* scroll back */
++	int *dirty;  /* dirtyness of lines */
++	XftGlyphFontSpec *specbuf; /* font spec buffer used for rendering */
++	TCursor c;    /* cursor */
++	int top;      /* top    scroll limit */
++	int bot;      /* bottom scroll limit */
++	int mode;     /* terminal mode flags */
++	int esc;      /* escape state flags */
++	char trantbl[4]; /* charset table translation */
++	int charset;  /* current charset */
++	int icharset; /* selected charset for sequence */
++	int numlock; /* lock numbers in keyboard */
++	int *tabs;
++} Term;
++
+ /* Font structure */
+ typedef struct {
+ 	int height;
+@@ -399,8 +406,8 @@ static void tputtab(int);
+ static void tputc(Rune);
+ static void treset(void);
+ static void tresize(int, int);
+-static void tscrollup(int, int);
+-static void tscrolldown(int, int);
++static void tscrollup(int, int, int);
++static void tscrolldown(int, int, int);
+ static void tsetattr(int *, int);
+ static void tsetchar(Rune, Glyph *, int, int);
+ static void tsetscroll(int, int);
+@@ -731,10 +738,10 @@ tlinelen(int y)
+ {
+ 	int i = term.col;
+ 
+-	if (term.line[y][i - 1].mode & ATTR_WRAP)
++	if (TLINE(y)[i - 1].mode & ATTR_WRAP)
+ 		return i;
+ 
+-	while (i > 0 && term.line[y][i - 1].u == ' ')
++	while (i > 0 && TLINE(y)[i - 1].u == ' ')
+ 		--i;
+ 
+ 	return i;
+@@ -796,7 +803,7 @@ selsnap(int *x, int *y, int direction)
+ 		 * Snap around if the word wraps around at the end or
+ 		 * beginning of a line.
+ 		 */
+-		prevgp = &term.line[*y][*x];
++		prevgp = &TLINE(*y)[*x];
+ 		prevdelim = ISDELIM(prevgp->u);
+ 		for (;;) {
+ 			newx = *x + direction;
+@@ -811,14 +818,14 @@ selsnap(int *x, int *y, int direction)
+ 					yt = *y, xt = *x;
+ 				else
+ 					yt = newy, xt = newx;
+-				if (!(term.line[yt][xt].mode & ATTR_WRAP))
++				if (!(TLINE(yt)[xt].mode & ATTR_WRAP))
+ 					break;
+ 			}
+ 
+ 			if (newx >= tlinelen(newy))
+ 				break;
+ 
+-			gp = &term.line[newy][newx];
++			gp = &TLINE(newy)[newx];
+ 			delim = ISDELIM(gp->u);
+ 			if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
+ 					|| (delim && gp->u != prevgp->u)))
+@@ -839,14 +846,14 @@ selsnap(int *x, int *y, int direction)
+ 		*x = (direction < 0) ? 0 : term.col - 1;
+ 		if (direction < 0) {
+ 			for (; *y > 0; *y += direction) {
+-				if (!(term.line[*y-1][term.col-1].mode
++				if (!(TLINE(*y-1)[term.col-1].mode
+ 						& ATTR_WRAP)) {
+ 					break;
+ 				}
+ 			}
+ 		} else if (direction > 0) {
+ 			for (; *y < term.row-1; *y += direction) {
+-				if (!(term.line[*y][term.col-1].mode
++				if (!(TLINE(*y)[term.col-1].mode
+ 						& ATTR_WRAP)) {
+ 					break;
+ 				}
+@@ -1012,13 +1019,13 @@ getsel(void)
+ 		}
+ 
+ 		if (sel.type == SEL_RECTANGULAR) {
+-			gp = &term.line[y][sel.nb.x];
++			gp = &TLINE(y)[sel.nb.x];
+ 			lastx = sel.ne.x;
+ 		} else {
+-			gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
++			gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0];
+ 			lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
+ 		}
+-		last = &term.line[y][MIN(lastx, linelen-1)];
++		last = &TLINE(y)[MIN(lastx, linelen-1)];
+ 		while (last >= gp && last->u == ' ')
+ 			--last;
+ 
+@@ -1490,6 +1497,9 @@ ttyread(void)
+ 	/* keep any uncomplete utf8 char for the next call */
+ 	memmove(buf, ptr, buflen);
+ 
++	if (term.scr > 0 && term.scr < histsize-1)
++		term.scr++;
++
+ 	return ret;
+ }
+ 
+@@ -1499,6 +1509,9 @@ ttywrite(const char *s, size_t n)
+ 	fd_set wfd, rfd;
+ 	ssize_t r;
+ 	size_t lim = 256;
++	Arg arg = (Arg){ .i = term.scr };
++
++	kscrolldown(&arg);
+ 
+ 	/*
+ 	 * Remember that we are using a pty, which might be a modem line.
+@@ -1690,13 +1703,53 @@ tswapscreen(void)
+ }
+ 
+ void
+-tscrolldown(int orig, int n)
++kscrolldown(const Arg* a)
++{
++	int n = a->i;
++
++	if (n < 0)
++		n = term.row + n;
++
++	if (n > term.scr)
++		n = term.scr;
++
++	if (term.scr > 0) {
++		term.scr -= n;
++		selscroll(0, -n);
++		tfulldirt();
++	}
++}
++
++void
++kscrollup(const Arg* a)
++{
++	int n = a->i;
++
++	if (n < 0)
++		n = term.row + n;
++
++	if (term.scr <= histsize - n) {
++		term.scr += n;
++		selscroll(0, n);
++		tfulldirt();
++	}
++}
++
++void
++tscrolldown(int orig, int n, int copyhist)
+ {
+ 	int i;
+ 	Line temp;
+ 
+ 	LIMIT(n, 0, term.bot-orig+1);
+ 
++	if (copyhist) {
++		term.histi = (term.histi - 1 + histsize) % histsize;
++		temp = term.hist[term.histi];
++		term.hist[term.histi] = term.line[term.bot];
++		term.line[term.bot] = temp;
++	}
++
+ 	tsetdirt(orig, term.bot-n);
+ 	tclearregion(0, term.bot-n+1, term.col-1, term.bot);
+ 
+@@ -1710,13 +1763,20 @@ tscrolldown(int orig, int n)
+ }
+ 
+ void
+-tscrollup(int orig, int n)
++tscrollup(int orig, int n, int copyhist)
+ {
+ 	int i;
+ 	Line temp;
+ 
+ 	LIMIT(n, 0, term.bot-orig+1);
+ 
++	if (copyhist) {
++		term.histi = (term.histi + 1) % histsize;
++		temp = term.hist[term.histi];
++		term.hist[term.histi] = term.line[orig];
++		term.line[orig] = temp;
++	}
++
+ 	tclearregion(0, orig, term.col-1, orig+n-1);
+ 	tsetdirt(orig+n, term.bot);
+ 
+@@ -1765,7 +1825,7 @@ tnewline(int first_col)
+ 	int y = term.c.y;
+ 
+ 	if (y == term.bot) {
+-		tscrollup(term.top, 1);
++		tscrollup(term.top, 1, 1);
+ 	} else {
+ 		y++;
+ 	}
+@@ -1930,14 +1990,14 @@ void
+ tinsertblankline(int n)
+ {
+ 	if (BETWEEN(term.c.y, term.top, term.bot))
+-		tscrolldown(term.c.y, n);
++		tscrolldown(term.c.y, n, 0);
+ }
+ 
+ void
+ tdeleteline(int n)
+ {
+ 	if (BETWEEN(term.c.y, term.top, term.bot))
+-		tscrollup(term.c.y, n);
++		tscrollup(term.c.y, n, 0);
+ }
+ 
+ int32_t
+@@ -2371,11 +2431,11 @@ csihandle(void)
+ 		break;
+ 	case 'S': /* SU -- Scroll <n> line up */
+ 		DEFAULT(csiescseq.arg[0], 1);
+-		tscrollup(term.top, csiescseq.arg[0]);
++		tscrollup(term.top, csiescseq.arg[0], 0);
+ 		break;
+ 	case 'T': /* SD -- Scroll <n> line down */
+ 		DEFAULT(csiescseq.arg[0], 1);
+-		tscrolldown(term.top, csiescseq.arg[0]);
++		tscrolldown(term.top, csiescseq.arg[0], 0);
+ 		break;
+ 	case 'L': /* IL -- Insert <n> blank lines */
+ 		DEFAULT(csiescseq.arg[0], 1);
+@@ -2871,7 +2931,7 @@ eschandle(uchar ascii)
+ 		return 0;
+ 	case 'D': /* IND -- Linefeed */
+ 		if (term.c.y == term.bot) {
+-			tscrollup(term.top, 1);
++			tscrollup(term.top, 1, 1);
+ 		} else {
+ 			tmoveto(term.c.x, term.c.y+1);
+ 		}
+@@ -2884,7 +2944,7 @@ eschandle(uchar ascii)
+ 		break;
+ 	case 'M': /* RI -- Reverse index */
+ 		if (term.c.y == term.top) {
+-			tscrolldown(term.top, 1);
++			tscrolldown(term.top, 1, 1);
+ 		} else {
+ 			tmoveto(term.c.x, term.c.y-1);
+ 		}
+@@ -3047,7 +3107,7 @@ tputc(Rune u)
+ void
+ tresize(int col, int row)
+ {
+-	int i;
++	int i, j;
+ 	int minrow = MIN(row, term.row);
+ 	int mincol = MIN(col, term.col);
+ 	int *bp;
+@@ -3087,6 +3147,14 @@ tresize(int col, int row)
+ 	term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
+ 	term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
+ 
++	for (i = 0; i < histsize; i++) {
++		term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph));
++		for (j = mincol; j < col; j++) {
++			term.hist[i][j] = term.c.attr;
++			term.hist[i][j].u = ' ';
++		}
++	}
++
+ 	/* resize each row to new width, zero-pad if needed */
+ 	for (i = 0; i < minrow; i++) {
+ 		term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
+@@ -3976,11 +4044,11 @@ drawregion(int x1, int y1, int x2, int y2)
+ 		term.dirty[y] = 0;
+ 
+ 		specs = term.specbuf;
+-		numspecs = xmakeglyphfontspecs(specs, &term.line[y][x1], x2 - x1, x1, y);
++		numspecs = xmakeglyphfontspecs(specs, &TLINE(y)[x1], x2 - x1, x1, y);
+ 
+ 		i = ox = 0;
+ 		for (x = x1; x < x2 && i < numspecs; x++) {
+-			new = term.line[y][x];
++			new = TLINE(y)[x];
+ 			if (new.mode == ATTR_WDUMMY)
+ 				continue;
+ 			if (ena_sel && selected(x, y))
+@@ -4000,7 +4068,8 @@ drawregion(int x1, int y1, int x2, int y2)
+ 		if (i > 0)
+ 			xdrawglyphfontspecs(specs, base, i, ox, y);
+ 	}
+-	xdrawcursor();
++	if (term.scr == 0)
++		xdrawcursor();
+ }
+ 
+ void
diff --git a/modules/user-interface.nix b/modules/user-interface.nix
new file mode 100644
index 00000000..ef05abbf
--- /dev/null
+++ b/modules/user-interface.nix
@@ -0,0 +1,44 @@
+{ config, pkgs, ... }:
+
+{ # programs.browserpass.enable = true;
+  programs.info.enable = true;
+
+  environment.systemPackages = with pkgs; [
+    firefox-bin
+
+    vdirsyncer
+    khal
+
+    offlineimap
+    isync
+    mu
+    msmtp
+
+    mosh
+    aspell
+    aspellDicts.en
+
+    st
+
+    trash-cli
+  ];
+
+  nixpkgs.config.st = {
+    patches = [ ../config/st-scrollback-0.7.diff ];
+    conf = builtins.readFile ../config/st-config.h;
+  };
+
+  services.devmon.enable = true;
+
+  services.redshift = {
+    enable = true;
+    temperature = {
+      day = 6500;
+      night = 3600;
+    };
+  };
+
+  services.urxvtd = {
+    enable = true;
+  };
+}
diff --git a/satoshipad.nix b/satoshipad.nix
index 3d97e5e9..d85242c4 100644
--- a/satoshipad.nix
+++ b/satoshipad.nix
@@ -22,6 +22,7 @@
     ./modules/intel-gpu.nix
     ./modules/t470s.nix
     ./modules/user.nix
+    ./modules/user-interface.nix
   ];
 
   networking.hostName = "satoshipad";