From a7a057493c31ec79a88cb54de53da6a51bf995c7 Mon Sep 17 00:00:00 2001
From: zachir <zachir@librem.one>
Date: Mon, 20 Feb 2023 02:28:16 -0600
Subject: add hidecursor patch

---
 patches/st-hidecursor-0.8.3.diff | 88 ++++++++++++++++++++++++++++++++++++++++
 x.c                              | 31 ++++++++++++--
 2 files changed, 116 insertions(+), 3 deletions(-)
 create mode 100644 patches/st-hidecursor-0.8.3.diff

diff --git a/patches/st-hidecursor-0.8.3.diff b/patches/st-hidecursor-0.8.3.diff
new file mode 100644
index 0000000..4895a66
--- /dev/null
+++ b/patches/st-hidecursor-0.8.3.diff
@@ -0,0 +1,88 @@
+diff --git a/x.c b/x.c
+index e5f1737..7e759b0 100644
+--- a/x.c
++++ b/x.c
+@@ -103,6 +103,11 @@ typedef struct {
+ 	Draw draw;
+ 	Visual *vis;
+ 	XSetWindowAttributes attrs;
++	/* Here, we use the term *pointer* to differentiate the cursor
++	 * one sees when hovering the mouse over the terminal from, e.g.,
++	 * a green rectangle where text would be entered. */
++	Cursor vpointer, bpointer; /* visible and hidden pointers */
++	int pointerisvisible;
+ 	int scr;
+ 	int isfixed; /* is fixed geometry? */
+ 	int l, t; /* left and top offset */
+@@ -698,6 +703,13 @@ brelease(XEvent *e)
+ void
+ bmotion(XEvent *e)
+ {
++	if (!xw.pointerisvisible) {
++		XDefineCursor(xw.dpy, xw.win, xw.vpointer);
++		xw.pointerisvisible = 1;
++		if (!IS_SET(MODE_MOUSEMANY))
++			xsetpointermotion(0);
++	}
++
+ 	if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
+ 		mousereport(e);
+ 		return;
+@@ -1099,10 +1111,10 @@ void
+ xinit(int cols, int rows)
+ {
+ 	XGCValues gcvalues;
+-	Cursor cursor;
+ 	Window parent;
+ 	pid_t thispid = getpid();
+ 	XColor xmousefg, xmousebg;
++	Pixmap blankpm;
+ 
+ 	if (!(xw.dpy = XOpenDisplay(NULL)))
+ 		die("can't open display\n");
+@@ -1166,8 +1178,9 @@ xinit(int cols, int rows)
+ 	}
+ 
+ 	/* white cursor, black outline */
+-	cursor = XCreateFontCursor(xw.dpy, mouseshape);
+-	XDefineCursor(xw.dpy, xw.win, cursor);
++	xw.pointerisvisible = 1;
++	xw.vpointer = XCreateFontCursor(xw.dpy, mouseshape);
++	XDefineCursor(xw.dpy, xw.win, xw.vpointer);
+ 
+ 	if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) {
+ 		xmousefg.red   = 0xffff;
+@@ -1181,7 +1194,10 @@ xinit(int cols, int rows)
+ 		xmousebg.blue  = 0x0000;
+ 	}
+ 
+-	XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg);
++	XRecolorCursor(xw.dpy, xw.vpointer, &xmousefg, &xmousebg);
++	blankpm = XCreateBitmapFromData(xw.dpy, xw.win, &(char){0}, 1, 1);
++	xw.bpointer = XCreatePixmapCursor(xw.dpy, blankpm, blankpm,
++					  &xmousefg, &xmousebg, 0, 0);
+ 
+ 	xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
+ 	xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
+@@ -1673,6 +1689,8 @@ unmap(XEvent *ev)
+ void
+ xsetpointermotion(int set)
+ {
++	if (!set && !xw.pointerisvisible)
++		return;
+ 	MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
+ 	XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
+ }
+@@ -1793,6 +1811,12 @@ kpress(XEvent *ev)
+ 	Status status;
+ 	Shortcut *bp;
+ 
++	if (xw.pointerisvisible) {
++		XDefineCursor(xw.dpy, xw.win, xw.bpointer);
++		xsetpointermotion(1);
++		xw.pointerisvisible = 0;
++	}
++
+ 	if (IS_SET(MODE_KBDLOCK))
+ 		return;
+ 
diff --git a/x.c b/x.c
index ed30c77..6f2ddff 100644
--- a/x.c
+++ b/x.c
@@ -108,6 +108,11 @@ typedef struct {
 	Draw draw;
 	Visual *vis;
 	XSetWindowAttributes attrs;
+	/* Here, we use the term *pointer* to differentiate the cursor
+	 * one sees when hovering the mouse over the terminal from, e.g.,
+	 * a green rectangle where text would be entered. */
+	Cursor vpointer, bpointer; /* visible and hidden pointers */
+	int pointerisvisible;
 	int scr;
 	int isfixed; /* is fixed geometry? */
 	int depth; /* bit depth */
@@ -731,6 +736,13 @@ brelease(XEvent *e)
 void
 bmotion(XEvent *e)
 {
+	if (!xw.pointerisvisible) {
+		XDefineCursor(xw.dpy, xw.win, xw.vpointer);
+		xw.pointerisvisible = 1;
+		if (!IS_SET(MODE_MOUSEMANY))
+			xsetpointermotion(0);
+	}
+
 	if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
 		mousereport(e);
 		return;
@@ -1257,6 +1269,7 @@ xinit(int cols, int rows)
 	Window parent;
 	pid_t thispid = getpid();
 	XColor xmousefg, xmousebg;
+        Pixmap blankpm;
 	XWindowAttributes attr;
 	XVisualInfo vis;
 
@@ -1331,8 +1344,9 @@ xinit(int cols, int rows)
 	}
 
 	/* white cursor, black outline */
-	cursor = XCreateFontCursor(xw.dpy, mouseshape);
-	XDefineCursor(xw.dpy, xw.win, cursor);
+	xw.pointerisvisible = 1;
+	xw.vpointer = XCreateFontCursor(xw.dpy, mouseshape);
+	XDefineCursor(xw.dpy, xw.win, xw.vpointer);
 
 	if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) {
 		xmousefg.red   = 0xffff;
@@ -1346,7 +1360,10 @@ xinit(int cols, int rows)
 		xmousebg.blue  = 0x0000;
 	}
 
-	XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg);
+	XRecolorCursor(xw.dpy, xw.vpointer, &xmousefg, &xmousebg);
+	blankpm = XCreateBitmapFromData(xw.dpy, xw.win, &(char){0}, 1, 1);
+	xw.bpointer = XCreatePixmapCursor(xw.dpy, blankpm, blankpm,
+					  &xmousefg, &xmousebg, 0, 0);
 
 	xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
 	xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
@@ -1903,6 +1920,8 @@ unmap(XEvent *ev)
 void
 xsetpointermotion(int set)
 {
+	if (!set && !xw.pointerisvisible)
+		return;
 	MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
 	XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
 }
@@ -2032,6 +2051,12 @@ kpress(XEvent *ev)
 	Status status;
 	Shortcut *bp;
 
+	if (xw.pointerisvisible) {
+		XDefineCursor(xw.dpy, xw.win, xw.bpointer);
+		xsetpointermotion(1);
+		xw.pointerisvisible = 0;
+	}
+
 	if (IS_SET(MODE_KBDLOCK))
 		return;
 
-- 
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