From d081963fc75e1656f5ee4305947384a00b9e5f39 Mon Sep 17 00:00:00 2001
From: Colona <colona@ycc.fr>
Date: Mon, 9 Jun 2014 00:55:54 -0700
Subject: [PATCH] Hide X cursor when typing.

Hide the X cursor when typing in the terminal. The cursor is displayed again
when the mouse is moved.
---
 st.c | 33 +++++++++++++++++++++++++++------
 1 file changed, 27 insertions(+), 6 deletions(-)

diff --git a/st.c b/st.c
index 392f12d..52deb92 100644
--- a/st.c
+++ b/st.c
@@ -248,6 +248,8 @@ typedef struct {
 	Draw draw;
 	Visual *vis;
 	XSetWindowAttributes attrs;
+	Cursor cursor, bcursor; /* visible and blank cursors */
+	bool cursorstate; /* is cursor currently visible */
 	int scr;
 	bool isfixed; /* is fixed geometry? */
 	int fx, fy, fw, fh; /* fixed geometry */
@@ -1112,6 +1114,13 @@ void
 bmotion(XEvent *e) {
 	int oldey, oldex, oldsby, oldsey;
 
+	if(!xw.cursorstate) {
+		XDefineCursor(xw.dpy, xw.win, xw.cursor);
+		xw.cursorstate = true;
+		if(!IS_SET(MODE_MOUSEMANY))
+			xsetpointermotion(0);
+	}
+
 	if(IS_SET(MODE_MOUSE)) {
 		mousereport(e);
 		return;
@@ -2984,10 +2993,12 @@ xzoom(const Arg *arg) {
 void
 xinit(void) {
 	XGCValues gcvalues;
-	Cursor cursor;
 	Window parent;
 	int sw, sh;
 	pid_t thispid = getpid();
+	XColor xcwhite = {.red = 0xffff, .green = 0xffff, .blue = 0xffff};
+	XColor xcblack = {.red = 0x0000, .green = 0x0000, .blue = 0x0000};
+	Pixmap blankpm;
 
 	if(!(xw.dpy = XOpenDisplay(NULL)))
 		die("Can't open display\n");
@@ -3071,11 +3082,13 @@ xinit(void) {
 		die("XCreateIC failed. Could not obtain input method.\n");
 
 	/* white cursor, black outline */
-	cursor = XCreateFontCursor(xw.dpy, XC_xterm);
-	XDefineCursor(xw.dpy, xw.win, cursor);
-	XRecolorCursor(xw.dpy, cursor,
-		&(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
-		&(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
+	xw.cursor = XCreateFontCursor(xw.dpy, XC_xterm);
+	XDefineCursor(xw.dpy, xw.win, xw.cursor);
+	XRecolorCursor(xw.dpy, xw.cursor, &xcwhite, &xcblack);
+	xw.cursorstate = true;
+	blankpm = XCreateBitmapFromData(xw.dpy, xw.win, &(char){0}, 1, 1);
+	xw.bcursor = XCreatePixmapCursor(xw.dpy, blankpm, blankpm,
+								     &xcblack, &xcblack, 0, 0);
 
 	xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
 	xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
@@ -3537,6 +3550,8 @@ unmap(XEvent *ev) {
 
 void
 xsetpointermotion(int set) {
+	if(!set && !xw.cursorstate)
+		return;
 	MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
 	XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
 }
@@ -3630,6 +3645,12 @@ kpress(XEvent *ev) {
 	Status status;
 	Shortcut *bp;
 
+	if(xw.cursorstate) {
+		XDefineCursor(xw.dpy, xw.win, xw.bcursor);
+		xsetpointermotion(1);
+		xw.cursorstate = false;
+	}
+
 	if(IS_SET(MODE_KBDLOCK))
 		return;
 
-- 
2.0.0