dmenu

 From 51331aed8a535323702b73681c5ce2af6f8f5868 Mon Sep 17 00:00:00 2001
 From: Karol Kosek <krkk@krkk.ct8.pl>
 Date: Sat, 23 Jan 2021 20:16:19 +0100
 Subject: [PATCH] fix mouse hover on vertical lists with prompt text
 
 ---
  dmenu.c | 159 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
  1 file changed, 158 insertions(+), 1 deletion(-)
 
 diff --git a/dmenu.c b/dmenu.c
 index 65f25ce..aff2768 100644
 --- a/dmenu.c
 +++ b/dmenu.c
 @@ -500,6 +500,156 @@ 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;
 +    /* disabled below, needs to be fixed */
 +    /*
 +    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
 +mousemove(XEvent *e)
 +{
 +    struct item *item;
 +    XPointerMovedEvent *ev = &e->xmotion;
 +    int x = 0, y = 0, h = bh, w;
 +
 +    if (lines > 0) {
 +        w = mw - x;
 +        for (item = curr; item != next; item = item->right) {
 +            y += h;
 +            if (ev->y >= y && ev->y <= (y + h)) {
 +                sel = item;
 +                calcoffsets();
 +                drawmenu();
 +                return;
 +            }
 +        }
 +    } else if (matches) {
 +        x += inputw + promptw;
 +        w = TEXTW("<");
 +        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) {
 +                sel = item;
 +                calcoffsets();
 +                drawmenu();
 +                return;
 +            }
 +        }
 +    }
 +}
 +
  static void
  paste(void)
  {
 @@ -561,6 +711,12 @@ run(void)
                  break;
              cleanup();
              exit(1);
 +        case ButtonPress:
 +            buttonpress(&ev);
 +            break;
 +        case MotionNotify:
 +            mousemove(&ev);
 +            break;
          case Expose:
              if (ev.xexpose.count == 0)
                  drw_map(drw, win, 0, 0, mw, mh);
 @@ -658,7 +814,8 @@ 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 | PointerMotionMask;
      win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0,
                          CopyFromParent, CopyFromParent, CopyFromParent,
                          CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
 -- 
 2.30.0