From 9ee452401368609e553028caed1ab418b40a0d7a Mon Sep 17 00:00:00 2001

From: Casey Fitzpatrick <kcghost@gmail.com>

Date: Thu, 4 May 2023 17:19:02 +0300

Subject: [PATCH 3/5] Support dragging tabs left and right with the mouse

---

 tabbed.c | 39 ++++++++++++++++++++++++++++++++++++++-

 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/tabbed.c b/tabbed.c

index c413b45..50a0f87 100644

--- a/tabbed.c

+++ b/tabbed.c

@@ -88,6 +88,7 @@ typedef struct {

 /* function declarations */

 static void buttonpress(const XEvent *e);

+static void motionnotify(const XEvent *e);

 static void cleanup(void);

 static void clientmessage(const XEvent *e);

 static void configurenotify(const XEvent *e);

@@ -151,6 +152,7 @@ static void (*handler[LASTEvent]) (const XEvent *) = {

 	[KeyPress] = keypress,

 	[MapRequest] = maprequest,

 	[PropertyNotify] = propertynotify,

+	[MotionNotify] = motionnotify,

 };

 static int bh, obh, wx, wy, ww, wh, vbh;

 static unsigned int numlockmask;

@@ -209,6 +211,41 @@ buttonpress(const XEvent *e)

 	}

 }

+void

+motionnotify(const XEvent *e)

+{

+	const XMotionEvent *ev = &e->xmotion;

+	int i, fc;

+	Arg arg;

+

+	if (ev->y < 0 || ev->y > bh)

+		return;

+

+	if (! (ev->state & Button1Mask)) {

+		return;

+	}

+

+	if (((fc = getfirsttab()) > 0 && ev->x < TEXTW(before)) || ev->x < 0)

+		return;

+

+	if (sel < 0)

+		return;

+

+	for (i = fc; i < nclients; i++) {

+		if (clients[i]->tabx > ev->x) {

+			if (i == sel+1) {

+				arg.i = 1;

+				movetab(&arg);

+			}

+			if (i == sel-1) {

+				arg.i = -1;

+				movetab(&arg);

+			}

+			break;

+		}

+	}

+}

+

 void

 cleanup(void)

 {

@@ -1058,7 +1095,7 @@ setup(void)

 	XSelectInput(dpy, win, SubstructureNotifyMask | FocusChangeMask |

 	             ButtonPressMask | ExposureMask | KeyPressMask |

 	             PropertyChangeMask | StructureNotifyMask |

-	             SubstructureRedirectMask);

+	             SubstructureRedirectMask | ButtonMotionMask);

 	xerrorxlib = XSetErrorHandler(xerror);

 	class_hint.res_name = wmname;

-- 

2.33.8