From b8d842033d832fffbf31a887a34c6f3d9b4a7a41 Mon Sep 17 00:00:00 2001
From: Jonathan Hodgson <git@jonathanh.co.uk>
Date: Sun, 7 Feb 2021 21:34:51 +0000
Subject: [PATCH] Adds mouse support and volume key support

This is for use on my phone

Volume keys can be used to scroll through the items, power can be used
to select an item and tapping an item will also select it
---
 dmenu.c | 123 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 122 insertions(+), 1 deletion(-)

diff --git a/dmenu.c b/dmenu.c
index 65f25ce..257cbd7 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -15,6 +15,7 @@
 #include <X11/extensions/Xinerama.h>
 #endif
 #include <X11/Xft/Xft.h>
+#include <X11/XF86keysym.h>
 
 #include "drw.h"
 #include "util.h"
@@ -444,6 +445,7 @@ insert:
 		if (lines > 0)
 			return;
 		/* fallthrough */
+	case XF86XK_AudioRaiseVolume:
 	case XK_Up:
 		if (sel && sel->left && (sel = sel->left)->right == curr) {
 			curr = prev;
@@ -462,6 +464,7 @@ insert:
 		sel = curr = prev;
 		calcoffsets();
 		break;
+	case XF86XK_PowerOff:
 	case XK_Return:
 	case XK_KP_Enter:
 		puts((sel && !(ev->state & ShiftMask)) ? sel->text : text);
@@ -480,6 +483,7 @@ insert:
 		if (lines > 0)
 			return;
 		/* fallthrough */
+	case XF86XK_AudioLowerVolume:
 	case XK_Down:
 		if (sel && sel->right && (sel = sel->right) == next) {
 			curr = next;
@@ -500,6 +504,119 @@ draw:
 	drawmenu();
 }
 
+static void
+buttonpress(XEvent *e)
+{
+	struct item *item;
+	XButtonPressedEvent *ev = &e->xbutton;
+	int x = 0, y = 0, h = bh, w;
+
+	if (ev->window != win)
+		return;
+
+	/* right-click: exit */
+	if (ev->button == Button3)
+		exit(1);
+
+	if (prompt && *prompt)
+		x += promptw;
+
+	/* input field */
+	w = (lines > 0 || !matches) ? mw - x : inputw;
+
+	/* left-click on input: clear input,
+	 * NOTE: if there is no left-arrow the space for < is reserved so
+	 *       add that to the input width */
+	if (ev->button == Button1 &&
+	   ((lines <= 0 && ev->x >= 0 && ev->x <= x + w +
+	   ((!prev || !curr->left) ? TEXTW("<") : 0)) ||
+	   (lines > 0 && ev->y >= y && ev->y <= y + h))) {
+		insert(NULL, -cursor);
+		drawmenu();
+		return;
+	}
+	/* middle-mouse click: paste selection */
+	if (ev->button == Button2) {
+		XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY,
+		                  utf8, utf8, win, CurrentTime);
+		drawmenu();
+		return;
+	}
+	/* scroll up */
+	if (ev->button == Button4 && prev) {
+		sel = curr = prev;
+		calcoffsets();
+		drawmenu();
+		return;
+	}
+	/* scroll down */
+	if (ev->button == Button5 && next) {
+		sel = curr = next;
+		calcoffsets();
+		drawmenu();
+		return;
+	}
+	if (ev->button != Button1)
+		return;
+	//if (ev->state & ~ControlMask)
+	//	return;
+	if (lines > 0) {
+		/* vertical list: (ctrl)left-click on item */
+		w = mw - x;
+		for (item = curr; item != next; item = item->right) {
+			y += h;
+			if (ev->y >= y && ev->y <= (y + h)) {
+				puts(item->text);
+				if (!(ev->state & ControlMask))
+					exit(0);
+				sel = item;
+				if (sel) {
+					sel->out = 1;
+					drawmenu();
+				}
+				return;
+			}
+		}
+	} else if (matches) {
+		/* left-click on left arrow */
+		x += inputw;
+		w = TEXTW("<");
+		if (prev && curr->left) {
+			if (ev->x >= x && ev->x <= x + w) {
+				sel = curr = prev;
+				calcoffsets();
+				drawmenu();
+				return;
+			}
+		}
+		/* horizontal list: (ctrl)left-click on item */
+		for (item = curr; item != next; item = item->right) {
+			x += w;
+			w = MIN(TEXTW(item->text), mw - x - TEXTW(">"));
+			if (ev->x >= x && ev->x <= x + w) {
+				puts(item->text);
+				if (!(ev->state & ControlMask))
+					exit(0);
+				sel = item;
+				if (sel) {
+					sel->out = 1;
+					drawmenu();
+				}
+				return;
+			}
+		}
+		/* left-click on right arrow */
+		w = TEXTW(">");
+		x = mw - w;
+		if (next && ev->x >= x && ev->x <= x + w) {
+			sel = curr = next;
+			calcoffsets();
+			drawmenu();
+			return;
+		}
+	}
+}
+
 static void
 paste(void)
 {
@@ -561,6 +678,9 @@ run(void)
 				break;
 			cleanup();
 			exit(1);
+		case ButtonPress:
+			buttonpress(&ev);
+			break;
 		case Expose:
 			if (ev.xexpose.count == 0)
 				drw_map(drw, win, 0, 0, mw, mh);
@@ -658,7 +778,8 @@ setup(void)
 	/* create menu window */
 	swa.override_redirect = True;
 	swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
-	swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
+	swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask |
+	                 ButtonPressMask;
 	win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0,
 	                    CopyFromParent, CopyFromParent, CopyFromParent,
 	                    CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);