command: disc-mouse-on-button property

This property indicates whether mouse cursor is located on button
or not for disc naviation.

DOCS/man/input.rst

@@ -919,6 +919,10 @@ Property list
     a BD or DVD. Use the ``discnav menu`` command to actually enter or leave
     menu mode.
 
+``disc-mouse-on-button``
+    Return ``yes`` when the mouse cursor is located on a button, or ``no``
+    when cursor is outside of any button for disc navigation.
+
 ``chapters``
     Number of chapters.
 

player/command.c

@@ -702,6 +702,14 @@ static int mp_property_disc_menu(void *ctx, struct m_property *prop,
     return m_property_flag_ro(action, arg, !!state);
 }
 
+static int mp_property_mouse_on_button(void *ctx, struct m_property *prop,
+                                       int action, void *arg)
+{
+    MPContext *mpctx = ctx;
+    bool on = mp_nav_mouse_on_button(mpctx);
+    return m_property_flag_ro(action, arg, on);
+}
+
 /// Current chapter (RW)
 static int mp_property_chapter(void *ctx, struct m_property *prop,
                                int action, void *arg)
@@ -3262,6 +3270,7 @@ static const struct m_property mp_properties[] = {
     {"playback-time", mp_property_playback_time},
     {"disc-title", mp_property_disc_title},
     {"disc-menu-active", mp_property_disc_menu},
+    {"disc-mouse-on-button", mp_property_mouse_on_button},
     {"chapter", mp_property_chapter},
     {"edition", mp_property_edition},
     {"disc-titles", mp_property_disc_titles},

player/core.h

@@ -373,6 +373,7 @@ void mp_nav_destroy(struct MPContext *mpctx);
 void mp_nav_user_input(struct MPContext *mpctx, char *command);
 void mp_handle_nav(struct MPContext *mpctx);
 int mp_nav_in_menu(struct MPContext *mpctx);
+bool mp_nav_mouse_on_button(struct MPContext *mpctx);
 
 // loadfile.c
 void uninit_player(struct MPContext *mpctx, unsigned int mask);

player/discnav.c

@@ -42,6 +42,7 @@ struct mp_nav_state {
     bool nav_eof;
     bool nav_menu;
     bool nav_draining;
+    bool nav_mouse_on_button;
 
     // Accessed by OSD (possibly separate thread)
     // Protected by the given lock
@@ -91,6 +92,25 @@ int mp_nav_in_menu(struct MPContext *mpctx)
     return mpctx->nav_state ? mpctx->nav_state->nav_menu : -1;
 }
 
+static void update_mouse_on_button(struct MPContext *mpctx)
+{
+    mp_notify_property(mpctx, "disc-mouse-on-button");
+}
+
+static void set_mouse_on_button(struct MPContext *mpctx, bool in)
+{
+    struct mp_nav_state *nav = mpctx->nav_state;
+    if (nav->nav_mouse_on_button != in) {
+        nav->nav_mouse_on_button = in;
+        update_mouse_on_button(mpctx);
+    }
+}
+
+bool mp_nav_mouse_on_button(struct MPContext *mpctx)
+{
+    return mpctx->nav_state ? mpctx->nav_state->nav_mouse_on_button : false;
+}
+
 // If a demuxer is accessing the stream, we have to use demux_stream_control()
 // to avoid synchronization issues; otherwise access it directly.
 static int run_stream_control(struct MPContext *mpctx, int cmd, void *arg)
@@ -129,6 +149,7 @@ void mp_nav_init(struct MPContext *mpctx)
                 MP_INPUT_ALLOW_VO_DRAGGING | MP_INPUT_ALLOW_HIDE_CURSOR);
 
     update_state(mpctx);
+    update_mouse_on_button(mpctx);
 }
 
 void mp_nav_reset(struct MPContext *mpctx)
@@ -159,6 +180,7 @@ void mp_nav_destroy(struct MPContext *mpctx)
     talloc_free(mpctx->nav_state);
     mpctx->nav_state = NULL;
     update_state(mpctx);
+    update_mouse_on_button(mpctx);
 }
 
 void mp_nav_user_input(struct MPContext *mpctx, char *command)
@@ -182,6 +204,7 @@ void mp_nav_user_input(struct MPContext *mpctx, char *command)
         inp.u.mouse_pos.x = x;
         inp.u.mouse_pos.y = y;
         run_stream_control(mpctx, STREAM_CTRL_NAV_CMD, &inp);
+        set_mouse_on_button(mpctx, inp.mouse_on_button);
     } else {
         struct mp_nav_cmd inp = {MP_NAV_CMD_MENU};
         inp.u.menu.action = command;

stream/discnav.h

@@ -80,6 +80,7 @@ struct mp_nav_cmd {
             int x, y;
         } mouse_pos;
     } u;
+    bool mouse_on_button;
 };
 
 #endif /* MPLAYER_STREAM_DVDNAV_H */

stream/stream_bluray.c

@@ -455,7 +455,9 @@ static void handle_nav_command(stream_t *s, struct mp_nav_cmd *ev)
         bd_vk_key_e key = translate_nav_menu_action(action);
         if (key != BD_VK_NONE) {
             if (key == BD_VK_MOUSE_ACTIVATE)
-                bd_mouse_select(priv->bd, pts, priv->mousex, priv->mousey);
+                ev->mouse_on_button = bd_mouse_select(priv->bd, pts, 
+                                                      priv->mousex, 
+                                                      priv->mousey);
             bd_user_input(priv->bd, pts, key);
         } else if (strcmp(action, "menu") == 0) {
             if (priv->popup_enabled)
@@ -467,7 +469,9 @@ static void handle_nav_command(stream_t *s, struct mp_nav_cmd *ev)
     } case MP_NAV_CMD_MOUSE_POS:
         priv->mousex = ev->u.mouse_pos.x;
         priv->mousey = ev->u.mouse_pos.y;
-        bd_mouse_select(priv->bd, mp_time_us(), priv->mousex, priv->mousey);
+        ev->mouse_on_button = bd_mouse_select(priv->bd, mp_time_us(), 
+                                              priv->mousex, 
+                                              priv->mousey);
         break;
     case MP_NAV_CMD_SKIP_STILL:
         bd_read_skip_still(priv->bd);

stream/stream_dvdnav.c

@@ -202,18 +202,19 @@ static void handle_menu_input(stream_t *stream, const char *cmd)
     }
 }
 
-static void handle_mouse_pos(stream_t *stream, int x, int y)
+static dvdnav_status_t handle_mouse_pos(stream_t *stream, int x, int y)
 {
     struct priv *priv = stream->priv;
     dvdnav_t *nav = priv->dvdnav;
     pci_t *pci = dvdnav_get_current_nav_pci(nav);
 
     if (!pci)
-        return;
+        return DVDNAV_STATUS_ERR;
 
-    dvdnav_mouse_select(nav, pci, x, y);
+    dvdnav_status_t status = dvdnav_mouse_select(nav, pci, x, y);
     priv->mousex = x;
     priv->mousey = y;
+    return status;
 }
 
 /**
@@ -305,7 +306,7 @@ static void handle_cmd(stream_t *s, struct mp_nav_cmd *ev)
         handle_menu_input(s, ev->u.menu.action);
         break;
     case MP_NAV_CMD_MOUSE_POS:
-        handle_mouse_pos(s, ev->u.mouse_pos.x, ev->u.mouse_pos.y);
+        ev->mouse_on_button = handle_mouse_pos(s, ev->u.mouse_pos.x, ev->u.mouse_pos.y);
         break;
     }