Adding universcroll patch ref. #21

README.md

@@ -15,7 +15,7 @@ Refer to [https://st.suckless.org/](https://st.suckless.org/) for details on the
 
 ### Changelog:
 
-2021-05-08 - Added blinking cursor, delkey, undercurl, desktopentry, netwmicon and osc_10_11_12_2 patches
+2021-05-08 - Added blinking cursor, delkey, undercurl,universcroll, desktopentry, netwmicon and osc_10_11_12_2 patches
 
 2021-05-07 - Added xresources reload patch
 
@@ -190,6 +190,10 @@ Refer to [https://st.suckless.org/](https://st.suckless.org/) for details on the
    - [undercurl](https://st.suckless.org/patches/undercurl/)
       - adds support for special underlines, e.g. curly / wavy underlines
 
+   - [universcroll](https://st.suckless.org/patches/universcroll/)
+      - allows mouse scroll without modifier keys for regardless of alt screen using the external
+        scroll program
+
    - [vertcenter](https://st.suckless.org/patches/vertcenter/)
       - vertically center lines in the space available if you have set a larger chscale in config.h
 

config.def.h

@@ -286,7 +286,11 @@ static uint forcemousemod = ShiftMask;
  * Beware that overloading Button1 will disable the selection.
  */
 static MouseShortcut mshortcuts[] = {
+	#if UNIVERSCROLL_PATCH
+	/* mask                 button   function        argument       release   alt */
+	#else
 	/* mask                 button   function        argument       release */
+	#endif // UNIVERSCROLL_PATCH
 	#if CLIPBOARD_PATCH
 	{ XK_ANY_MOD,           Button2, clippaste,      {.i = 0},      1 },
 	#else
@@ -295,6 +299,9 @@ static MouseShortcut mshortcuts[] = {
 	#if SCROLLBACK_MOUSE_PATCH
 	{ ShiftMask,            Button4, kscrollup,      {.i = 1} },
 	{ ShiftMask,            Button5, kscrolldown,    {.i = 1} },
+	#elif UNIVERSCROLL_PATCH
+	{ XK_ANY_MOD,           Button4, ttysend,        {.s = "\033[5;2~"}, 0, -1 },
+	{ XK_ANY_MOD,           Button5, ttysend,        {.s = "\033[6;2~"}, 0, -1 },
 	#else
 	{ ShiftMask,            Button4, ttysend,        {.s = "\033[5;2~"} },
 	{ ShiftMask,            Button5, ttysend,        {.s = "\033[6;2~"} },

patch/scrollback.c

@@ -29,10 +29,3 @@ kscrollup(const Arg* a)
 		tfulldirt();
 	}
 }
-
-#if SCROLLBACK_MOUSE_ALTSCREEN_PATCH
-int tisaltscr(void)
-{
-	return IS_SET(MODE_ALTSCREEN);
-}
-#endif // SCROLLBACK_MOUSE_ALTSCREEN_PATCH

patch/scrollback.h

@@ -15,7 +15,3 @@ typedef struct {
 
 extern MouseKey mkeys[];
 #endif // SCROLLBACK_MOUSE_PATCH / SCROLLBACK_MOUSE_ALTSCREEN_PATCH
-
-#if SCROLLBACK_MOUSE_ALTSCREEN_PATCH
-int tisaltscr(void);
-#endif // SCROLLBACK_MOUSE_ALTSCREEN_PATCH

patch/st_include.c

@@ -20,6 +20,9 @@
 #if SCROLLBACK_PATCH || SCROLLBACK_MOUSE_PATCH || SCROLLBACK_MOUSE_ALTSCREEN_PATCH
 #include "scrollback.c"
 #endif
+#if UNIVERSCROLL_PATCH || SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+#include "universcroll.c"
+#endif
 #if SIXEL_PATCH
 #include "sixel_st.c"
 #endif

patch/st_include.h

@@ -20,6 +20,9 @@
 #if SCROLLBACK_PATCH || SCROLLBACK_MOUSE_PATCH || SCROLLBACK_MOUSE_ALTSCREEN_PATCH
 #include "scrollback.h"
 #endif
+#if UNIVERSCROLL_PATCH || SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+#include "universcroll.h"
+#endif
 #if SIXEL_PATCH
 #include "sixel_st.h"
 #endif

patch/universcroll.c

@@ -0,0 +1,5 @@
+int
+tisaltscr(void)
+{
+	return IS_SET(MODE_ALTSCREEN);
+}

patch/universcroll.h

@@ -0,0 +1 @@
+int tisaltscr(void);

patches.def.h

@@ -292,6 +292,12 @@
  */
 #define UNDERCURL_PATCH 0
 
+/* Allows mouse scroll without modifier keys for regardless of alt screen using the external
+ * scroll program.
+ * https://st.suckless.org/patches/universcroll/
+ */
+#define UNIVERSCROLL_PATCH 0
+
 /* Vertically center lines in the space available if you have set a larger chscale in config.h
  * https://st.suckless.org/patches/vertcenter/
  */

st.h

@@ -243,6 +243,9 @@ typedef struct {
 	void (*func)(const Arg *);
 	const Arg arg;
 	uint  release;
+	#if UNIVERSCROLL_PATCH
+	int  altscrn;  /* 0: don't care, -1: not alt screen, 1: alt screen */
+	#endif // UNIVERSCROLL_PATCH
 } MouseShortcut;
 
 typedef struct {

x.c

@@ -334,6 +334,9 @@ mouseaction(XEvent *e, uint release)
 	for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
 		if (ms->release == release &&
 				ms->button == e->xbutton.button &&
+				#if UNIVERSCROLL_PATCH
+				(!ms->altscrn || (ms->altscrn == (tisaltscr() ? 1 : -1))) &&
+				#endif // UNIVERSCROLL_PATCH
 				(match(ms->mod, state) ||  /* exact or forced */
 				 match(ms->mod, state & ~forcemousemod))) {
 			ms->func(&(ms->arg));