add mouse support in dmenu

dmenu-5.0/config.h

@@ -0,0 +1,29 @@
+/* See LICENSE file for copyright and license details. */
+/* Default settings; can be overriden by command line. */
+
+static int topbar = 1;                      /* -b  option; if 0, dmenu appears at bottom     */
+/* -fn option overrides fonts[0]; default X11 font or font set */
+static const char *fonts[] = {
+	"Comic Sans MS:size=12"
+};
+static const char *prompt      = NULL;      /* -p  option; prompt to the left of input field */
+static const char *colors[SchemeLast][2] = {
+	/*     fg         bg       */
+	[SchemeNorm] = { "#bbbbbb", "#222222" },
+	[SchemeSel] = { "#eeeeee", "#5294e2" },
+	[SchemeOut] = { "#000000", "#C000FF" },
+};
+/* -l option; if nonzero, dmenu uses vertical list with given number of lines */
+static unsigned int lines      = 10;
+/* -h option; minimum height of a menu line */
+static unsigned int lineheight = 0;
+static unsigned int min_lineheight = 8;
+
+/*
+ * Characters not considered part of a word while deleting words
+ * for example: " /?\"&[]"
+ */
+static const char worddelimiters[] = "         ";
+
+/* Size of the window border */
+static const unsigned int border_width = 4;

dmenu-5.0/dmenu.c

@@ -509,6 +509,119 @@ 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)
 {
@@ -570,6 +683,9 @@ 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);
@@ -669,6 +785,7 @@ setup(void)
 	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, border_width,
 	                    CopyFromParent, CopyFromParent, CopyFromParent,
 	                    CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);

dmenu-5.0/dmenu.c.orig

@@ -89,6 +89,15 @@ calcoffsets(void)
 			break;
 }
 
+static int
+max_textw(void)
+{
+	int len = 0;
+	for (struct item *item = items; item && item->text; item++)
+		len = MAX(TEXTW(item->text), len);
+	return len;
+}
+
 static void
 cleanup(void)
 {
@@ -612,6 +621,7 @@ setup(void)
 	bh = MAX(bh,lineheight);	/* make a menu line AT LEAST 'lineheight' tall */
 	lines = MAX(lines, 0);
 	mh = (lines + 1) * bh;
+	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
 #ifdef XINERAMA
 	i = 0;
 	if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) {
@@ -638,9 +648,9 @@ setup(void)
 				if (INTERSECT(x, y, 1, 1, info[i]))
 					break;
 
-		x = info[i].x_org;
-		y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
-		mw = info[i].width;
+		mw = MIN(MAX(max_textw() + promptw, 300), info[i].width);
+		x = info[i].x_org + ((info[i].width  - mw) / 2);
+		y = info[i].y_org + ((info[i].height - mh) / 2);
 		XFree(info);
 	} else
 #endif
@@ -648,11 +658,10 @@ setup(void)
 		if (!XGetWindowAttributes(dpy, parentwin, &wa))
 			die("could not get embedding window attributes: 0x%lx",
 			    parentwin);
-		x = 0;
-		y = topbar ? 0 : wa.height - mh;
-		mw = wa.width;
+		mw = MIN(MAX(max_textw() + promptw, 300), wa.width);
+		x = (wa.width  - mw) / 2;
+		y = (wa.height - mh) / 2;
 	}
-	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
 	inputw = MIN(inputw, mw/3);
 	match();
 

dmenu-5.0/dmenu.c.rej

@@ -0,0 +1,12 @@
+--- dmenu.c
++++ dmenu.c
+@@ -774,7 +890,8 @@ 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);