Migrate 'now playing' screen to lua

lib/luavgl/src/lvgl.lua

@@ -335,6 +335,13 @@ end
 function lvgl.Object(parent, property)
 end
 
+--- Create Bar widget on parent
+--- @param parent? Object | nil
+--- @param property? BarProp
+--- @return Bar
+function lvgl.Bar(parent, property)
+end
+
 --- Create Button widget on parent
 --- @param parent? Object | nil
 --- @param property? StyleProp
@@ -471,6 +478,13 @@ obj = {}
 function obj:Object(property)
 end
 
+---
+--- Create bar on object
+--- @param property? BarStyle
+--- @return Bar
+function obj:Bar(property)
+end
+
 ---
 --- Create button on object
 --- @param property? ButtonStyle
@@ -866,6 +880,18 @@ end
 function calendar:Dropdown(p)
 end
 
+---
+--- Bar widget
+---@class Bar:Object
+---
+local bar = {}
+
+--- set method for bar widget
+--- @param p BarStyle
+--- @return nil
+function bar:set(p)
+end
+
 ---
 --- Button widget
 ---@class Button:Object
@@ -1375,6 +1401,11 @@ end
 --- @class LabelStyle :StyleProp
 --- @field text string
 
+--- Bar style
+--- @class BarStyle :StyleProp
+--- @field range BarRangePara
+--- @field value integer
+
 --- Button style
 --- @class ButtonStyle :StyleProp
 
@@ -1472,6 +1503,13 @@ end
 --- @field align_content flexAlignOptions
 
 
+---
+--- BarRange para
+--- @class BarRangePara
+--- @field min integer
+--- @field max integer
+---
+
 ---
 --- CalendarToday para
 --- @class CalendarDatePara

lib/luavgl/src/obj.c

@@ -9,8 +9,7 @@
 static int luavgl_anim_create(lua_State *L);
 static int luavgl_obj_delete(lua_State *L);
 
-static void _lv_obj_set_align(void *obj, lua_State *L)
+static void _lv_obj_set_align(void *obj, lua_State *L) {
-{
   if (lua_isinteger(L, -1)) {
     lv_obj_align(obj, lua_tointeger(L, -1), 0, 0);
     return;
@@ -42,13 +41,11 @@ static void _lv_obj_set_align(void *obj, lua_State *L)
  *
  * Internally used.
  */
-static inline void luavgl_setup_obj(lua_State *L, lv_obj_t *obj)
+static inline void luavgl_setup_obj(lua_State *L, lv_obj_t *obj) {
-{
   luavgl_iterate(L, -1, luavgl_obj_set_property_kv, obj);
 }
 
-static void obj_delete_cb(lv_event_t *e)
+static void obj_delete_cb(lv_event_t *e) {
-{
   lua_State *L = e->user_data;
   lua_pushlightuserdata(L, e->current_target);
   lua_rawget(L, LUA_REGISTRYINDEX);
@@ -57,8 +54,16 @@ static void obj_delete_cb(lv_event_t *e)
   }
 
   luavgl_obj_t *lobj = luavgl_to_lobj(L, -1);
-  if (lobj->lua_created)
+  if (lobj->lua_created) {
+    // The underlying object is now gone, so don't keep a reference to it.
+    lobj->obj = NULL;
+    // Ensure there's no dangling reference in the registry either.
+    lua_pushlightuserdata(L, e->current_target);
+    lua_pushnil(L);
+    lua_rawset(L, LUA_REGISTRYINDEX);
+
     goto pop_exit;
+  }
 
   luavgl_obj_delete(L);
   return;
@@ -73,8 +78,7 @@ pop_exit:
  * one. result stack: table(from uservalue)
  * return uservalue type: LUA_TTABLE
  */
-LUALIB_API int luavgl_obj_getuserdatauv(lua_State *L, int idx)
+LUALIB_API int luavgl_obj_getuserdatauv(lua_State *L, int idx) {
-{
   int type = lua_getuservalue(L, idx);
   if (type == LUA_TTABLE)
     return type;
@@ -93,13 +97,11 @@ LUALIB_API int luavgl_obj_getuserdatauv(lua_State *L, int idx)
   return LUA_TTABLE;
 }
 
-static int luavgl_obj_create(lua_State *L)
+static int luavgl_obj_create(lua_State *L) {
-{
   return luavgl_obj_create_helper(L, lv_obj_create);
 }
 
-static int luavgl_obj_delete(lua_State *L)
+static int luavgl_obj_delete(lua_State *L) {
-{
   luavgl_obj_t *lobj;
 
   /**
@@ -149,8 +151,7 @@ static int luavgl_obj_delete(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_clean(lua_State *L)
+static int luavgl_obj_clean(lua_State *L) {
-{
   luavgl_obj_t *lobj = luavgl_to_lobj(L, -1);
   if (lobj == NULL || lobj->obj == NULL)
     return 0;
@@ -171,8 +172,7 @@ static int luavgl_obj_clean(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_set(lua_State *L)
+static int luavgl_obj_set(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
 
   if (!lua_istable(L, -1)) {
@@ -187,8 +187,7 @@ static int luavgl_obj_set(lua_State *L)
 /**
  * obj:align_to({base=base, type=type, x_ofs=0, y_ofs=0})
  */
-static int luavgl_obj_align_to(lua_State *L)
+static int luavgl_obj_align_to(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
 
   if (!lua_istable(L, 2)) {
@@ -220,16 +219,14 @@ static int luavgl_obj_align_to(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_set_parent(lua_State *L)
+static int luavgl_obj_set_parent(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_obj_t *parent = luavgl_to_obj(L, 2);
   lv_obj_set_parent(obj, parent);
   return 0;
 }
 
-static int luavgl_obj_get_screen(lua_State *L)
+static int luavgl_obj_get_screen(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_obj_t *screen = lv_obj_get_screen(obj);
 
@@ -247,8 +244,7 @@ static int luavgl_obj_get_screen(lua_State *L)
   return 1;
 }
 
-static int luavgl_obj_get_parent(lua_State *L)
+static int luavgl_obj_get_parent(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_obj_t *parent = lv_obj_get_parent(obj);
 
@@ -265,8 +261,7 @@ static int luavgl_obj_get_parent(lua_State *L)
   return 1;
 }
 
-static int luavgl_obj_set_get_parent(lua_State *L)
+static int luavgl_obj_set_get_parent(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   if (!lua_isnoneornil(L, 2)) {
     lv_obj_t *parent = luavgl_to_obj(L, 2);
@@ -276,8 +271,7 @@ static int luavgl_obj_set_get_parent(lua_State *L)
   return luavgl_obj_get_parent(L);
 }
 
-static int luavgl_obj_get_child(lua_State *L)
+static int luavgl_obj_get_child(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
 
   int id = luavgl_tointeger(L, 2);
@@ -297,15 +291,13 @@ static int luavgl_obj_get_child(lua_State *L)
   return 1;
 }
 
-static int luavgl_obj_get_child_cnt(lua_State *L)
+static int luavgl_obj_get_child_cnt(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lua_pushinteger(L, lv_obj_get_child_cnt(obj));
   return 1;
 }
 
-static int luavgl_obj_get_state(lua_State *L)
+static int luavgl_obj_get_state(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_state_t state = lv_obj_get_state(obj);
   lua_pushinteger(L, state);
@@ -318,8 +310,7 @@ static int luavgl_obj_get_state(lua_State *L)
  * obj:scroll_to({x=10, anim=true})
  * obj:scroll_to({x=10, y=100, anim=false})
  */
-static int luavgl_obj_scroll_to(lua_State *L)
+static int luavgl_obj_scroll_to(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
 
   if (!lua_istable(L, -1)) {
@@ -348,16 +339,14 @@ static int luavgl_obj_scroll_to(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_is_visible(lua_State *L)
+static int luavgl_obj_is_visible(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lua_pushboolean(L, lv_obj_is_visible(obj));
 
   return 1;
 }
 
-static int luavgl_obj_add_flag(lua_State *L)
+static int luavgl_obj_add_flag(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_obj_flag_t flag = lua_tointeger(L, 2);
   lv_obj_add_flag(obj, flag);
@@ -365,8 +354,7 @@ static int luavgl_obj_add_flag(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_clear_flag(lua_State *L)
+static int luavgl_obj_clear_flag(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_obj_flag_t flag = lua_tointeger(L, 2);
   lv_obj_clear_flag(obj, flag);
@@ -374,16 +362,14 @@ static int luavgl_obj_clear_flag(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_add_state(lua_State *L)
+static int luavgl_obj_add_state(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_state_t state = lua_tointeger(L, 2);
   lv_obj_add_state(obj, state);
   return 0;
 }
 
-static int luavgl_obj_clear_state(lua_State *L)
+static int luavgl_obj_clear_state(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_state_t state = lua_tointeger(L, 2);
   lv_obj_clear_state(obj, state);
@@ -393,8 +379,7 @@ static int luavgl_obj_clear_state(lua_State *L)
 /**
  * obj:scroll_by(x, y, anim_en)
  */
-static int luavgl_obj_scroll_by(lua_State *L)
+static int luavgl_obj_scroll_by(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   int x = luavgl_tointeger(L, 2);
   int y = luavgl_tointeger(L, 3);
@@ -404,8 +389,7 @@ static int luavgl_obj_scroll_by(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_scroll_by_bounded(lua_State *L)
+static int luavgl_obj_scroll_by_bounded(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   int dx = luavgl_tointeger(L, 2);
   int dy = luavgl_tointeger(L, 3);
@@ -415,8 +399,7 @@ static int luavgl_obj_scroll_by_bounded(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_scroll_to_view(lua_State *L)
+static int luavgl_obj_scroll_to_view(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   int anim_en = luavgl_tointeger(L, 2);
 
@@ -424,8 +407,7 @@ static int luavgl_obj_scroll_to_view(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_scroll_to_view_recursive(lua_State *L)
+static int luavgl_obj_scroll_to_view_recursive(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   int anim_en = luavgl_tointeger(L, 2);
 
@@ -433,8 +415,7 @@ static int luavgl_obj_scroll_to_view_recursive(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_scroll_by_raw(lua_State *L)
+static int luavgl_obj_scroll_by_raw(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   int x = luavgl_tointeger(L, 2);
   int y = luavgl_tointeger(L, 3);
@@ -443,72 +424,62 @@ static int luavgl_obj_scroll_by_raw(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_is_scrolling(lua_State *L)
+static int luavgl_obj_is_scrolling(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lua_pushboolean(L, lv_obj_is_scrolling(obj));
   return 1;
 }
 
-static int luavgl_obj_scrollbar_invalidate(lua_State *L)
+static int luavgl_obj_scrollbar_invalidate(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_obj_scrollbar_invalidate(obj);
   return 0;
 }
 
-static int luavgl_obj_readjust_scroll(lua_State *L)
+static int luavgl_obj_readjust_scroll(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   int anim_en = luavgl_tointeger(L, 2);
   lv_obj_readjust_scroll(obj, anim_en);
   return 0;
 }
 
-static int luavgl_obj_is_editable(lua_State *L)
+static int luavgl_obj_is_editable(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lua_pushboolean(L, lv_obj_is_editable(obj));
   return 1;
 }
 
-static int luavgl_obj_is_group_def(lua_State *L)
+static int luavgl_obj_is_group_def(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lua_pushboolean(L, lv_obj_is_group_def(obj));
   return 1;
 }
 
-static int luavgl_obj_is_layout_positioned(lua_State *L)
+static int luavgl_obj_is_layout_positioned(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lua_pushboolean(L, lv_obj_is_layout_positioned(obj));
   return 1;
 }
 
-static int luavgl_obj_mark_layout_as_dirty(lua_State *L)
+static int luavgl_obj_mark_layout_as_dirty(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_obj_mark_layout_as_dirty(obj);
   return 0;
 }
 
-static int luavgl_obj_center(lua_State *L)
+static int luavgl_obj_center(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_obj_center(obj);
   return 0;
 }
 
-static int luavgl_obj_invalidate(lua_State *L)
+static int luavgl_obj_invalidate(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_obj_invalidate(obj);
   return 0;
 }
 
-static int luavgl_obj_set_flex_flow(lua_State *L)
+static int luavgl_obj_set_flex_flow(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_flex_flow_t flow = luavgl_tointeger(L, 2);
 
@@ -516,8 +487,7 @@ static int luavgl_obj_set_flex_flow(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_set_flex_align(lua_State *L)
+static int luavgl_obj_set_flex_align(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_flex_align_t m = luavgl_tointeger(L, 2);
   lv_flex_align_t c = luavgl_tointeger(L, 3);
@@ -527,8 +497,7 @@ static int luavgl_obj_set_flex_align(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_set_flex_grow(lua_State *L)
+static int luavgl_obj_set_flex_grow(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   uint8_t grow = luavgl_tointeger(L, 2);
 
@@ -536,8 +505,7 @@ static int luavgl_obj_set_flex_grow(lua_State *L)
   return 0;
 }
 
-static int luavgl_obj_indev_search(lua_State *L)
+static int luavgl_obj_indev_search(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_point_t point;
   if (lua_istable(L, 2)) {
@@ -567,8 +535,7 @@ static int luavgl_obj_indev_search(lua_State *L)
   return 1;
 }
 
-static int luavgl_obj_get_coords(lua_State *L)
+static int luavgl_obj_get_coords(lua_State *L) {
-{
   lv_area_t area;
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_obj_get_coords(obj, &area);
@@ -592,8 +559,7 @@ static int luavgl_obj_get_coords(lua_State *L)
 /**
  * get object real position using lv_obj_get_x/x2/y/y2
  */
-static int luavgl_obj_get_pos(lua_State *L)
+static int luavgl_obj_get_pos(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lua_newtable(L);
 
@@ -615,15 +581,13 @@ static int luavgl_obj_get_pos(lua_State *L)
 /**
  * Remove all animations associates to this object
  */
-static int luavgl_obj_remove_anim_all(lua_State *L)
+static int luavgl_obj_remove_anim_all(lua_State *L) {
-{
   lv_obj_t *obj = luavgl_to_obj(L, 1);
   lv_anim_del(obj, NULL);
   return 1;
 }
 
-static int luavgl_obj_gc(lua_State *L)
+static int luavgl_obj_gc(lua_State *L) {
-{
   if (lua_type(L, 1) != LUA_TUSERDATA) {
     /* If t = setmetatable({}, obj_meta_table), this will happen when t is
      * gc;ed. Currently all metatables for classes based on obj, that has no own
@@ -647,62 +611,61 @@ static int luavgl_obj_gc(lua_State *L)
 }
 
 static const luaL_Reg luavgl_obj_methods[] = {
-    {"set",                      luavgl_obj_set                     },
+    {"set", luavgl_obj_set},
-    {"set_style",                luavgl_obj_set_style               },
+    {"set_style", luavgl_obj_set_style},
-    {"align_to",                 luavgl_obj_align_to                },
+    {"align_to", luavgl_obj_align_to},
-    {"delete",                   luavgl_obj_delete                  },
+    {"delete", luavgl_obj_delete},
-    {"clean",                    luavgl_obj_clean                   },
+    {"clean", luavgl_obj_clean},
-
+
- /* misc. functions */
+    /* misc. functions */
-    {"parent",                   luavgl_obj_set_get_parent          },
+    {"parent", luavgl_obj_set_get_parent},
-    {"set_parent",               luavgl_obj_set_parent              },
+    {"set_parent", luavgl_obj_set_parent},
-    {"get_parent",               luavgl_obj_get_parent              },
+    {"get_parent", luavgl_obj_get_parent},
-    {"get_child",                luavgl_obj_get_child               },
+    {"get_child", luavgl_obj_get_child},
-    {"get_child_cnt",            luavgl_obj_get_child_cnt           },
+    {"get_child_cnt", luavgl_obj_get_child_cnt},
-    {"get_screen",               luavgl_obj_get_screen              },
+    {"get_screen", luavgl_obj_get_screen},
-    {"get_state",                luavgl_obj_get_state               },
+    {"get_state", luavgl_obj_get_state},
-    {"scroll_to",                luavgl_obj_scroll_to               },
+    {"scroll_to", luavgl_obj_scroll_to},
-    {"is_scrolling",             luavgl_obj_is_scrolling            },
+    {"is_scrolling", luavgl_obj_is_scrolling},
-    {"is_visible",               luavgl_obj_is_visible              },
+    {"is_visible", luavgl_obj_is_visible},
-    {"add_flag",                 luavgl_obj_add_flag                },
+    {"add_flag", luavgl_obj_add_flag},
-    {"clear_flag",               luavgl_obj_clear_flag              },
+    {"clear_flag", luavgl_obj_clear_flag},
-    {"add_state",                luavgl_obj_add_state               },
+    {"add_state", luavgl_obj_add_state},
-    {"clear_state",              luavgl_obj_clear_state             },
+    {"clear_state", luavgl_obj_clear_state},
-    {"add_style",                luavgl_obj_add_style               },
+    {"add_style", luavgl_obj_add_style},
-    {"remove_style",             luavgl_obj_remove_style            },
+    {"remove_style", luavgl_obj_remove_style},
-    {"remove_style_all",         luavgl_obj_remove_style_all        },
+    {"remove_style_all", luavgl_obj_remove_style_all},
-    {"scroll_by",                luavgl_obj_scroll_by               },
+    {"scroll_by", luavgl_obj_scroll_by},
-    {"scroll_by_bounded",        luavgl_obj_scroll_by_bounded       },
+    {"scroll_by_bounded", luavgl_obj_scroll_by_bounded},
-    {"scroll_to_view",           luavgl_obj_scroll_to_view          },
+    {"scroll_to_view", luavgl_obj_scroll_to_view},
     {"scroll_to_view_recursive", luavgl_obj_scroll_to_view_recursive},
-    {"scroll_by_raw",            luavgl_obj_scroll_by_raw           },
+    {"scroll_by_raw", luavgl_obj_scroll_by_raw},
-    {"scrollbar_invalidate",     luavgl_obj_scrollbar_invalidate    },
+    {"scrollbar_invalidate", luavgl_obj_scrollbar_invalidate},
-    {"readjust_scroll",          luavgl_obj_readjust_scroll         },
+    {"readjust_scroll", luavgl_obj_readjust_scroll},
-    {"is_editable",              luavgl_obj_is_editable             },
+    {"is_editable", luavgl_obj_is_editable},
-    {"is_group_def",             luavgl_obj_is_group_def            },
+    {"is_group_def", luavgl_obj_is_group_def},
-    {"is_layout_positioned",     luavgl_obj_is_layout_positioned    },
+    {"is_layout_positioned", luavgl_obj_is_layout_positioned},
-    {"mark_layout_as_dirty",     luavgl_obj_mark_layout_as_dirty    },
+    {"mark_layout_as_dirty", luavgl_obj_mark_layout_as_dirty},
-    {"center",                   luavgl_obj_center                  },
+    {"center", luavgl_obj_center},
-    {"invalidate",               luavgl_obj_invalidate              },
+    {"invalidate", luavgl_obj_invalidate},
-    {"set_flex_flow",            luavgl_obj_set_flex_flow           },
+    {"set_flex_flow", luavgl_obj_set_flex_flow},
-    {"set_flex_align",           luavgl_obj_set_flex_align          },
+    {"set_flex_align", luavgl_obj_set_flex_align},
-    {"set_flex_grow",            luavgl_obj_set_flex_grow           },
+    {"set_flex_grow", luavgl_obj_set_flex_grow},
-    {"indev_search",             luavgl_obj_indev_search            },
+    {"indev_search", luavgl_obj_indev_search},
-    {"get_coords",               luavgl_obj_get_coords              },
+    {"get_coords", luavgl_obj_get_coords},
-    {"get_pos",                  luavgl_obj_get_pos                 },
+    {"get_pos", luavgl_obj_get_pos},
-
+
-    {"onevent",                  luavgl_obj_on_event                },
+    {"onevent", luavgl_obj_on_event},
-    {"onPressed",                luavgl_obj_on_pressed              },
+    {"onPressed", luavgl_obj_on_pressed},
-    {"onClicked",                luavgl_obj_on_clicked              },
+    {"onClicked", luavgl_obj_on_clicked},
-    {"onShortClicked",           luavgl_obj_on_short_clicked        },
+    {"onShortClicked", luavgl_obj_on_short_clicked},
-    {"anim",                     luavgl_anim_create                 },
+    {"anim", luavgl_anim_create},
-    {"Anim",                     luavgl_anim_create                 },
+    {"Anim", luavgl_anim_create},
-    {"remove_all_anim",          luavgl_obj_remove_anim_all         }, /* remove all */
+    {"remove_all_anim", luavgl_obj_remove_anim_all}, /* remove all */
-    {NULL,                       NULL                               },
+    {NULL, NULL},
 };
 
-static void luavgl_obj_init(lua_State *L)
+static void luavgl_obj_init(lua_State *L) {
-{
   /* base lv_obj */
   luavgl_obj_newmetatable(L, &lv_obj_class, "lv_obj", luavgl_obj_methods);
   lua_pushcfunction(L, luavgl_obj_gc);
@@ -728,16 +691,16 @@ static void luavgl_obj_init(lua_State *L)
 }
 
 static const luavgl_value_setter_t obj_property_table[] = {
-    {"x",              0,                 {.setter = (setter_int_t)lv_obj_set_x}             },
+    {"x", 0, {.setter = (setter_int_t)lv_obj_set_x}},
-    {"y",              0,                 {.setter = (setter_int_t)lv_obj_set_y}             },
+    {"y", 0, {.setter = (setter_int_t)lv_obj_set_y}},
-    {"w",              0,                 {.setter = (setter_int_t)lv_obj_set_width}         },
+    {"w", 0, {.setter = (setter_int_t)lv_obj_set_width}},
-    {"h",              0,                 {.setter = (setter_int_t)lv_obj_set_height}        },
+    {"h", 0, {.setter = (setter_int_t)lv_obj_set_height}},
-    {"align",          SETTER_TYPE_STACK, {.setter_stack = _lv_obj_set_align}                },
+    {"align", SETTER_TYPE_STACK, {.setter_stack = _lv_obj_set_align}},
-
+
-    {"scrollbar_mode", 0,                 {.setter = (setter_int_t)lv_obj_set_scrollbar_mode}},
+    {"scrollbar_mode", 0, {.setter = (setter_int_t)lv_obj_set_scrollbar_mode}},
-    {"scroll_dir",     0,                 {.setter = (setter_int_t)lv_obj_set_scroll_dir}    },
+    {"scroll_dir", 0, {.setter = (setter_int_t)lv_obj_set_scroll_dir}},
-    {"scroll_snap_x",  0,                 {.setter = (setter_int_t)lv_obj_set_scroll_snap_x} },
+    {"scroll_snap_x", 0, {.setter = (setter_int_t)lv_obj_set_scroll_snap_x}},
-    {"scroll_snap_y",  0,                 {.setter = (setter_int_t)lv_obj_set_scroll_snap_y} },
+    {"scroll_snap_y", 0, {.setter = (setter_int_t)lv_obj_set_scroll_snap_y}},
 };
 
 /**
@@ -751,8 +714,7 @@ static const luavgl_value_setter_t obj_property_table[] = {
  * stack[-2]: key(property name)
  * stack[-1]: value(could be any lua data)
  */
-LUALIB_API int luavgl_obj_set_property_kv(lua_State *L, void *data)
+LUALIB_API int luavgl_obj_set_property_kv(lua_State *L, void *data) {
-{
   lv_obj_t *obj = data;
   int ret = luavgl_set_property(L, obj, obj_property_table);
 
@@ -764,8 +726,7 @@ LUALIB_API int luavgl_obj_set_property_kv(lua_State *L, void *data)
 }
 
 LUALIB_API int luavgl_obj_create_helper(lua_State *L,
-                                        lv_obj_t *(*create)(lv_obj_t *parent))
+                                        lv_obj_t *(*create)(lv_obj_t *parent)) {
-{
   luavgl_ctx_t *ctx = luavgl_context(L);
   lv_obj_t *parent;
 
@@ -811,8 +772,7 @@ LUALIB_API int luavgl_obj_create_helper(lua_State *L,
  * If no metatable not found for this obj class, then lv_obj_class metatable is
  * used
  */
-LUALIB_API luavgl_obj_t *luavgl_add_lobj(lua_State *L, lv_obj_t *obj)
+LUALIB_API luavgl_obj_t *luavgl_add_lobj(lua_State *L, lv_obj_t *obj) {
-{
   luavgl_obj_t *lobj;
 
   /* In rare case, obj may be deleted but not gc'ed in lua, and lvgl quickly

lib/luavgl/src/widgets/bar.c

@@ -0,0 +1,87 @@
+#include "luavgl.h"
+#include "private.h"
+#include <src/misc/lv_anim.h>
+#include <src/widgets/lv_bar.h>
+
+static int luavgl_bar_create(lua_State *L)
+{
+  return luavgl_obj_create_helper(L, lv_bar_create);
+}
+
+static void _lv_bar_set_range(void *obj, lua_State *L)
+{
+  int min=0, max=100;
+
+  int type = lua_type(L, -1);
+  if (type == LUA_TTABLE) {
+    lua_getfield(L, -1, "min");
+    min = lua_tointeger(L, -1);
+    lua_pop(L, 1);
+    lua_getfield(L, -1, "max");
+    max = luavgl_tointeger(L, -1);
+    lua_pop(L, 1);
+  }
+  
+  lv_bar_set_range(obj, min, max);
+}
+
+static void _lv_bar_set_value(void *obj, int value)
+{
+  lv_bar_set_value(obj, value, LV_ANIM_OFF);
+}
+
+static const luavgl_value_setter_t bar_property_table[] = {
+    {"range", SETTER_TYPE_STACK, {.setter_stack = _lv_bar_set_range}},
+    {"value", SETTER_TYPE_INT, {.setter = (setter_int_t)_lv_bar_set_value}},
+};
+
+LUALIB_API int luavgl_bar_set_property_kv(lua_State *L, void *data)
+{
+  lv_obj_t *obj = data;
+  int ret = luavgl_set_property(L, obj, bar_property_table);
+
+  if (ret == 0) {
+    return 0;
+  }
+  /* a base obj property? */
+  ret = luavgl_obj_set_property_kv(L, obj);
+  if (ret != 0) {
+    debug("unkown property for bar.\n");
+  }
+
+  return ret;
+}
+
+static int luavgl_bar_set(lua_State *L)
+{
+  lv_obj_t *obj = luavgl_to_obj(L, 1);
+
+  if (!lua_istable(L, -1)) {
+    luaL_error(L, "expect a table on 2nd para.");
+    return 0;
+  }
+
+  luavgl_iterate(L, -1, luavgl_bar_set_property_kv, obj);
+
+  return 0;
+}
+
+static int luavgl_bar_tostring(lua_State *L)
+{
+  lv_obj_t *obj = luavgl_to_obj(L, 1);
+  lua_pushfstring(L, "lv_bar:%p", obj);
+  return 1;
+}
+
+static const luaL_Reg luavgl_bar_methods[] = {
+    {"set",             luavgl_bar_set            },
+    {NULL,              NULL                      },
+};
+
+static void luavgl_bar_init(lua_State *L)
+{
+  luavgl_obj_newmetatable(L, &lv_bar_class, "lv_bar", luavgl_bar_methods);
+  lua_pushcfunction(L, luavgl_bar_tostring);
+  lua_setfield(L, -2, "__tostring");
+  lua_pop(L, 1);
+}

lib/luavgl/src/widgets/widgets.c

@@ -1,6 +1,10 @@
 #include "luavgl.h"
 #include "private.h"
 
+#if LV_USE_BAR
+#include "bar.c"
+#endif
+
 #if LV_USE_BTN
 #include "btn.c"
 #endif
@@ -50,6 +54,10 @@ static int luavgl_obj_create(lua_State *L);
 static const luaL_Reg widget_create_methods[] = {
     {"Object",   luavgl_obj_create     },
 
+#if LV_USE_BAR
+    {"Bar", luavgl_bar_create},
+#endif
+
 #if LV_USE_BTN
     {"Button", luavgl_btn_create},
 #endif
@@ -142,4 +150,8 @@ static void luavgl_widgets_init(lua_State *L)
   luavgl_btn_init(L);
 #endif
 
+#if LV_USE_BAR
+  luavgl_bar_init(L);
+#endif
+
 }

lua/browser.lua

@@ -5,6 +5,7 @@ local database = require("database")
 local backstack = require("backstack")
 local font = require("font")
 local queue = require("queue")
+local playing = require("playing")
 
 local browser = {}
 
@@ -73,6 +74,7 @@ function browser.create(opts)
     play:onClicked(function()
       queue.clear()
       queue.add(original_iterator)
+      backstack.push(playing)
     end
     )
   end
@@ -107,8 +109,7 @@ function browser.create(opts)
       else
         queue.clear()
         queue.add(contents)
-        legacy_ui.open_now_playing()
+        backstack.push(playing)
-        -- backstack.push(playing)
       end
     end)
     btn:onevent(lvgl.EVENT.FOCUSED, function()

lua/main_menu.lua

@@ -4,6 +4,7 @@ local legacy_ui = require("legacy_ui")
 local database = require("database")
 local backstack = require("backstack")
 local browser = require("browser")
+local playing = require("playing")
 
 return function()
   local menu = {}
@@ -29,7 +30,7 @@ return function()
   })
 
   menu.list:add_btn(nil, "Now Playing"):onClicked(function()
-    legacy_ui.open_now_playing();
+    backstack.push(playing)
   end)
 
   local indexes = database.indexes()

lua/playing.lua

@@ -2,6 +2,8 @@ local lvgl = require("lvgl")
 local widgets = require("widgets")
 local backstack = require("backstack")
 local font = require("font")
+local playback = require("playback")
+local queue = require("queue")
 
 return function(opts)
   local screen = {}
@@ -23,72 +25,142 @@ return function(opts)
     transparent_bg = true,
   })
 
-  local track_info = screen.root:Object {
+  local info = screen.root:Object {
     flex = {
       flex_direction = "column",
+      flex_wrap = "wrap",
       justify_content = "center",
       align_items = "center",
       align_content = "center",
     },
-    w = lvgl.SIZE_CONTENT,
+    w = lvgl.HOR_RES(),
+    h = lvgl.SIZE_CONTENT,
     flex_grow = 1,
   }
 
-  local artist = track_info:Label {
+  local artist = info:Label {
-    text = "Cool Artist",
+    w = lvgl.SIZE_CONTENT,
-    text_font = font.fusion_10,
+    h = lvgl.SIZE_CONTENT,
-  }
+    text = "",
-
-  local artist = track_info:Label {
-    text = "Good Album",
     text_font = font.fusion_10,
   }
 
-  local title = track_info:Label {
+  local title = info:Label {
-    text = "A really good song",
+    w = lvgl.SIZE_CONTENT,
+    h = lvgl.SIZE_CONTENT,
+    text = "",
   }
 
-  local scrubber = screen.root:Object {}
+  local playlist = screen.root:Object {
-
-  local times = screen.root:Object {
     flex = {
       flex_direction = "row",
       justify_content = "center",
-      align_items = "space-between",
+      align_items = "center",
       align_content = "center",
     },
-    w = lvgl.PCT(100),
+    w = lvgl.SIZE_CONTENT,
     h = lvgl.SIZE_CONTENT,
   }
-  local cur_time = track_info:Label {
+
-    text = "1:09",
+  local playlist_pos = playlist:Label {
+    text = "",
+    text_font = font.fusion_10,
   }
-  local end_time = track_info:Label {
+  playlist:Label {
-    text = "4:20",
+    text = "/",
+    text_font = font.fusion_10,
+  }
+  local playlist_total = playlist:Label {
+    text = "",
+    text_font = font.fusion_10,
   }
 
+  local scrubber = screen.root:Bar {
+    w = lvgl.PCT(100),
+    h = 5,
+    range = { min = 0, max = 100 },
+    value = 0,
+  }
 
   local controls = screen.root:Object {
     flex = {
       flex_direction = "row",
       justify_content = "center",
-      align_items = "space-evenly",
+      align_items = "center",
       align_content = "center",
     },
     w = lvgl.PCT(100),
     h = lvgl.SIZE_CONTENT,
+    pad_column = 8,
+    pad_all = 2,
+  }
+
+  local cur_time = controls:Label {
+    w = lvgl.SIZE_CONTENT,
+    h = lvgl.SIZE_CONTENT,
+    text = "",
+    text_font = font.fusion_10,
   }
-  controls:Label {
+
-    text = ">",
+  controls:Object({ flex_grow = 1, h = 1 }) -- spacer
+
+  controls:Image {
+    src = "//lua/img/prev.png",
   }
-  controls:Label {
+  local play_pause_img = controls:Image {
-    text = ">",
+    src = "//lua/img/pause.png",
   }
-  controls:Label {
+  controls:Image {
-    text = ">",
+    src = "//lua/img/next.png",
   }
-  controls:Label {
+  controls:Object({ flex_grow = 1, h = 1 }) -- spacer
-    text = ">",
+
+  local end_time = controls:Label {
+    w = lvgl.SIZE_CONTENT,
+    h = lvgl.SIZE_CONTENT,
+    align = lvgl.ALIGN.RIGHT_MID,
+    text = "",
+    text_font = font.fusion_10,
+  }
+
+  local format_time = function(time)
+    return string.format("%d:%02d", time // 60, time % 60)
+  end
+
+  screen.bindings = {
+    playback.playing:bind(function(playing)
+      if playing then
+        play_pause_img:set_src("//lua/img/pause.png")
+      else
+        play_pause_img:set_src("//lua/img/play.png")
+      end
+    end),
+    playback.position:bind(function(pos)
+      if not pos then return end
+      cur_time:set {
+        text = format_time(pos)
+      }
+      scrubber:set { value = pos }
+    end),
+    playback.track:bind(function(track)
+      if not track then return end
+      end_time:set {
+        text = format_time(track.duration)
+      }
+      title:set { text = track.title }
+      artist:set { text = track.artist }
+      scrubber:set {
+        range = { min = 0, max = track.duration }
+      }
+    end),
+    queue.position:bind(function(pos)
+      if not pos then return end
+      playlist_pos:set { text = tostring(pos) }
+    end),
+    queue.size:bind(function(num)
+      if not num then return end
+      playlist_total:set { text = tostring(num) }
+    end),
   }
 
   return screen

lua/widgets.lua

@@ -1,7 +1,6 @@
 local lvgl = require("lvgl")
 local power = require("power")
 local bluetooth = require("bluetooth")
-local playback = require("playback")
 local font = require("font")
 
 local widgets = {}
@@ -53,7 +52,6 @@ function widgets.StatusBar(parent, opts)
     status_bar.title:set { text = opts.title }
   end
 
-  status_bar.playing = status_bar.root:Image {}
   status_bar.bluetooth = status_bar.root:Image {}
   status_bar.battery = status_bar.root:Image {}
   status_bar.chg = status_bar.battery:Image {
@@ -64,7 +62,7 @@ function widgets.StatusBar(parent, opts)
   local is_charging = nil
   local percent = nil
 
-  function update_battery_icon()
+  local function update_battery_icon()
     if is_charging == nil or percent == nil then return end
     local src
     if percent >= 95 then
@@ -101,20 +99,6 @@ function widgets.StatusBar(parent, opts)
       is_charging = p
       update_battery_icon()
     end),
-    playback.playing:bind(function(playing)
-      if playing then
-        status_bar.playing:set_src("//lua/assets/play.png")
-      else
-        status_bar.playing:set_src("//lua/assets/pause.png")
-      end
-    end),
-    playback.track:bind(function(track)
-      if track then
-        status_bar.playing:clear_flag(lvgl.FLAG.HIDDEN)
-      else
-        status_bar.playing:add_flag(lvgl.FLAG.HIDDEN)
-      end
-    end),
     bluetooth.enabled:bind(function(en)
       if en then
         status_bar.bluetooth:clear_flag(lvgl.FLAG.HIDDEN)

src/audio/CMakeLists.txt

@@ -6,6 +6,7 @@ idf_component_register(
   SRCS "audio_decoder.cpp" "fatfs_audio_input.cpp" "i2s_audio_output.cpp"
   "track_queue.cpp" "audio_fsm.cpp" "audio_converter.cpp" "resample.cpp"
   "fatfs_source.cpp" "bt_audio_output.cpp" "readahead_source.cpp"
+  "audio_source.cpp"
   INCLUDE_DIRS "include"
   REQUIRES "codecs" "drivers" "cbor" "result" "tasks" "span" "memory" "tinyfsm"
   "database" "system_fsm" "playlist" "speexdsp")

src/audio/audio_decoder.cpp

@@ -50,12 +50,16 @@ namespace audio {
 static constexpr std::size_t kCodecBufferLength =
     drivers::kI2SBufferLengthFrames * sizeof(sample::Sample) * 2;
 
-Timer::Timer(const codecs::ICodec::OutputFormat& format)
+Timer::Timer(std::shared_ptr<Track> t,
-    : current_seconds_(0),
+             const codecs::ICodec::OutputFormat& format)
+    : track_(t),
+      current_seconds_(0),
       current_sample_in_second_(0),
       samples_per_second_(format.sample_rate_hz * format.num_channels),
       total_duration_seconds_(format.total_samples.value_or(0) /
-                              format.num_channels / format.sample_rate_hz) {}
+                              format.num_channels / format.sample_rate_hz) {
+  track_->duration = total_duration_seconds_;
+}
 
 auto Timer::AddSamples(std::size_t samples) -> void {
   bool incremented = false;
@@ -69,10 +73,10 @@ auto Timer::AddSamples(std::size_t samples) -> void {
   if (incremented) {
     if (total_duration_seconds_ < current_seconds_) {
       total_duration_seconds_ = current_seconds_;
+      track_->duration = total_duration_seconds_;
     }
 
-    PlaybackUpdate ev{.seconds_elapsed = current_seconds_,
+    PlaybackUpdate ev{.seconds_elapsed = current_seconds_, .track = track_};
-                      .seconds_total = total_duration_seconds_};
     events::Audio().Dispatch(ev);
     events::Ui().Dispatch(ev);
   }
@@ -102,7 +106,7 @@ Decoder::Decoder(std::shared_ptr<IAudioSource> source,
 void Decoder::Main() {
   for (;;) {
     if (source_->HasNewStream() || !stream_) {
-      std::shared_ptr<codecs::IStream> new_stream = source_->NextStream();
+      std::shared_ptr<TaggedStream> new_stream = source_->NextStream();
       ESP_LOGI(kTag, "decoder has new stream");
       if (new_stream && BeginDecoding(new_stream)) {
         stream_ = new_stream;
@@ -118,7 +122,7 @@ void Decoder::Main() {
   }
 }
 
-auto Decoder::BeginDecoding(std::shared_ptr<codecs::IStream> stream) -> bool {
+auto Decoder::BeginDecoding(std::shared_ptr<TaggedStream> stream) -> bool {
   // Ensure any previous codec is freed before creating a new one.
   codec_.reset();
   codec_.reset(codecs::CreateCodecForType(stream->type()).value_or(nullptr));
@@ -136,7 +140,13 @@ auto Decoder::BeginDecoding(std::shared_ptr<codecs::IStream> stream) -> bool {
   stream->SetPreambleFinished();
 
   if (open_res->total_samples) {
-    timer_.reset(new Timer(open_res.value()));
+    timer_.reset(new Timer(std::shared_ptr<Track>{new Track{
+                               .tags = stream->tags(),
+                               .db_info = {},
+                               .bitrate_kbps = 0,
+                               .encoding = stream->type(),
+                           }},
+                           open_res.value()));
   } else {
     timer_.reset();
   }

src/audio/audio_fsm.cpp

@@ -211,7 +211,7 @@ void Playback::react(const TogglePlayPause& ev) {
 
 void Playback::react(const PlaybackUpdate& ev) {
   ESP_LOGI(kTag, "elapsed: %lu, total: %lu", ev.seconds_elapsed,
-           ev.seconds_total);
+           ev.track->duration);
 }
 
 void Playback::react(const internal::InputFileOpened& ev) {}

src/audio/audio_source.cpp

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#include "audio_source.hpp"
+#include "codec.hpp"
+#include "types.hpp"
+
+namespace audio {
+
+TaggedStream::TaggedStream(std::shared_ptr<database::TrackTags> t,
+                           std::unique_ptr<codecs::IStream> w)
+    : codecs::IStream(w->type()), tags_(t), wrapped_(std::move(w)) {}
+
+auto TaggedStream::tags() -> std::shared_ptr<database::TrackTags> {
+  return tags_;
+}
+
+auto TaggedStream::Read(cpp::span<std::byte> dest) -> ssize_t {
+  return wrapped_->Read(dest);
+}
+
+auto TaggedStream::CanSeek() -> bool {
+  return wrapped_->CanSeek();
+}
+
+auto TaggedStream::SeekTo(int64_t destination, SeekFrom from) -> void {
+  wrapped_->SeekTo(destination, from);
+}
+
+auto TaggedStream::CurrentPosition() -> int64_t {
+  return wrapped_->CurrentPosition();
+}
+
+auto TaggedStream::SetPreambleFinished() -> void {
+  wrapped_->SetPreambleFinished();
+}
+
+}  // namespace audio

src/audio/fatfs_audio_input.cpp

@@ -85,7 +85,7 @@ auto FatfsAudioInput::HasNewStream() -> bool {
   return has_new_stream_;
 }
 
-auto FatfsAudioInput::NextStream() -> std::shared_ptr<codecs::IStream> {
+auto FatfsAudioInput::NextStream() -> std::shared_ptr<TaggedStream> {
   while (true) {
     has_new_stream_.wait(false);
 
@@ -147,8 +147,7 @@ auto FatfsAudioInput::OpenFile(const std::pmr::string& path) -> bool {
 
   auto source =
       std::make_unique<FatfsSource>(stream_type.value(), std::move(file));
-  // new_stream_.reset(new ReadaheadSource(bg_worker_, std::move(source)));
+  new_stream_.reset(new TaggedStream(tags, std::move(source)));
-  new_stream_ = std::move(source);
   return true;
 }
 

src/audio/include/audio_decoder.hpp

@@ -10,6 +10,7 @@
 #include <memory>
 
 #include "audio_converter.hpp"
+#include "audio_events.hpp"
 #include "audio_sink.hpp"
 #include "audio_source.hpp"
 #include "codec.hpp"
@@ -23,11 +24,13 @@ namespace audio {
  */
 class Timer {
  public:
-  Timer(const codecs::ICodec::OutputFormat& format);
+  Timer(std::shared_ptr<Track>, const codecs::ICodec::OutputFormat& format);
 
   auto AddSamples(std::size_t) -> void;
 
  private:
+  std::shared_ptr<Track> track_;
+
   uint32_t current_seconds_;
   uint32_t current_sample_in_second_;
   uint32_t samples_per_second_;
@@ -54,7 +57,7 @@ class Decoder {
   Decoder(std::shared_ptr<IAudioSource> source,
           std::shared_ptr<SampleConverter> converter);
 
-  auto BeginDecoding(std::shared_ptr<codecs::IStream>) -> bool;
+  auto BeginDecoding(std::shared_ptr<TaggedStream>) -> bool;
   auto ContinueDecoding() -> bool;
 
   std::shared_ptr<IAudioSource> source_;

src/audio/include/audio_events.hpp

@@ -8,20 +8,31 @@
 
 #include <stdint.h>
 #include <cstdint>
+#include <memory>
 #include <string>
 
 #include "tinyfsm.hpp"
 
 #include "track.hpp"
 #include "track_queue.hpp"
+#include "types.hpp"
 
 namespace audio {
 
+struct Track {
+  std::shared_ptr<database::TrackTags> tags;
+  std::shared_ptr<database::TrackData> db_info;
+
+  uint32_t duration;
+  uint32_t bitrate_kbps;
+  codecs::StreamType encoding;
+};
+
 struct PlaybackStarted : tinyfsm::Event {};
 
 struct PlaybackUpdate : tinyfsm::Event {
   uint32_t seconds_elapsed;
-  uint32_t seconds_total;
+  std::shared_ptr<Track> track;
 };
 
 struct PlaybackFinished : tinyfsm::Event {};

src/audio/include/audio_source.hpp

@@ -6,16 +6,41 @@
 
 #pragma once
 
+#include <memory>
 #include "codec.hpp"
+#include "track.hpp"
+#include "types.hpp"
 
 namespace audio {
 
+class TaggedStream : public codecs::IStream {
+ public:
+  TaggedStream(std::shared_ptr<database::TrackTags>,
+               std::unique_ptr<codecs::IStream> wrapped);
+
+  auto tags() -> std::shared_ptr<database::TrackTags>;
+
+  auto Read(cpp::span<std::byte> dest) -> ssize_t override;
+
+  auto CanSeek() -> bool override;
+
+  auto SeekTo(int64_t destination, SeekFrom from) -> void override;
+
+  auto CurrentPosition() -> int64_t override;
+
+  auto SetPreambleFinished() -> void override;
+
+ private:
+  std::shared_ptr<database::TrackTags> tags_;
+  std::unique_ptr<codecs::IStream> wrapped_;
+};
+
 class IAudioSource {
  public:
   virtual ~IAudioSource() {}
 
   virtual auto HasNewStream() -> bool = 0;
-  virtual auto NextStream() -> std::shared_ptr<codecs::IStream> = 0;
+  virtual auto NextStream() -> std::shared_ptr<TaggedStream> = 0;
 };
 
 }  // namespace audio

src/audio/include/fatfs_audio_input.hpp

@@ -43,7 +43,7 @@ class FatfsAudioInput : public IAudioSource {
   auto SetPath() -> void;
 
   auto HasNewStream() -> bool override;
-  auto NextStream() -> std::shared_ptr<codecs::IStream> override;
+  auto NextStream() -> std::shared_ptr<TaggedStream> override;
 
   FatfsAudioInput(const FatfsAudioInput&) = delete;
   FatfsAudioInput& operator=(const FatfsAudioInput&) = delete;
@@ -58,7 +58,7 @@ class FatfsAudioInput : public IAudioSource {
   tasks::Worker& bg_worker_;
 
   std::mutex new_stream_mutex_;
-  std::shared_ptr<codecs::IStream> new_stream_;
+  std::shared_ptr<TaggedStream> new_stream_;
 
   std::atomic<bool> has_new_stream_;
 

src/audio/include/track_queue.hpp

@@ -72,6 +72,9 @@ class TrackQueue {
    */
   auto Clear() -> void;
 
+  auto Position() -> size_t;
+  auto Size() -> size_t;
+
   TrackQueue(const TrackQueue&) = delete;
   TrackQueue& operator=(const TrackQueue&) = delete;
 

src/audio/track_queue.cpp

@@ -8,10 +8,12 @@
 
 #include <algorithm>
 #include <mutex>
+#include <optional>
 #include <variant>
 
 #include "audio_events.hpp"
 #include "audio_fsm.hpp"
+#include "database.hpp"
 #include "event_queue.hpp"
 #include "source.hpp"
 #include "track.hpp"
@@ -217,4 +219,12 @@ auto TrackQueue::Clear() -> void {
   events::Ui().Dispatch(ev);
 }
 
+auto TrackQueue::Position() -> size_t {
+  return played_.size() + (enqueued_.empty() ? 0 : 1);
+}
+
+auto TrackQueue::Size() -> size_t {
+  return played_.size() + enqueued_.size();
+}
+
 }  // namespace audio

src/codecs/codec.cpp

@@ -17,6 +17,23 @@
 
 namespace codecs {
 
+auto StreamTypeToString(StreamType t) -> std::string {
+  switch (t) {
+    case StreamType::kMp3:
+      return "Mp3";
+    case StreamType::kPcm:
+      return "Wav";
+    case StreamType::kVorbis:
+      return "Vorbis";
+    case StreamType::kFlac:
+      return "Flac";
+    case StreamType::kOpus:
+      return "Opus";
+    default:
+      return "";
+  }
+}
+
 auto CreateCodecForType(StreamType type) -> std::optional<ICodec*> {
   switch (type) {
     case StreamType::kMp3:

src/codecs/include/types.hpp

@@ -18,4 +18,6 @@ enum class StreamType {
   kOpus,
 };
 
+auto StreamTypeToString(StreamType t) -> std::string;
+  
 }  // namespace codecs

src/database/include/track.hpp

@@ -56,6 +56,8 @@ enum class Tag {
   kDuration = 5,
 };
 
+auto TagToString(Tag t) -> std::string;
+
 /*
  * Owning container for tag-related track metadata that was extracted from a
  * file.

src/database/track.cpp

@@ -13,6 +13,25 @@
 
 namespace database {
 
+auto TagToString(Tag t) -> std::string {
+  switch (t) {
+    case Tag::kTitle:
+      return "title";
+    case Tag::kArtist:
+      return "artist";
+    case Tag::kAlbum:
+      return "album";
+    case Tag::kAlbumTrack:
+      return "album_track";
+    case Tag::kGenre:
+      return "genre";
+    case Tag::kDuration:
+      return "duration";
+    default:
+      return "";
+  }
+}
+
 auto TrackTags::set(const Tag& key, const std::pmr::string& val) -> void {
   tags_[key] = val;
 }
@@ -64,5 +83,4 @@ auto Track::TitleOrFilename() const -> std::pmr::string {
   }
   return data().filepath.substr(start);
 }
-
 }  // namespace database

src/lua/include/property.hpp

@@ -9,13 +9,15 @@
 #include <memory>
 #include <string>
 
+#include "audio_events.hpp"
 #include "lua.hpp"
 #include "lvgl.h"
 #include "service_locator.hpp"
 
 namespace lua {
 
-using LuaValue = std::variant<std::monostate, int, float, bool, std::string>;
+using LuaValue =
+    std::variant<std::monostate, int, float, bool, std::string, audio::Track>;
 using LuaFunction = std::function<int(lua_State*)>;
 
 class Property {

src/lua/property.cpp

@@ -9,10 +9,13 @@
 #include <memory>
 #include <string>
 
+#include "lua.h"
 #include "lua.hpp"
 #include "lua_thread.hpp"
 #include "lvgl.h"
 #include "service_locator.hpp"
+#include "track.hpp"
+#include "types.hpp"
 
 namespace lua {
 
@@ -51,7 +54,7 @@ static auto property_bind(lua_State* state) -> int {
   lua_pushvalue(state, 2);
 
   p->PushValue(*state);
-  CallProtected(state, 1, 0); // Invoke the initial binding.
+  CallProtected(state, 1, 0);  // Invoke the initial binding.
 
   lua_pushstring(state, kBindingsTable);
   lua_gettable(state, LUA_REGISTRYINDEX);  // REGISTRY[kBindingsTable]
@@ -171,6 +174,31 @@ auto Property::PushValue(lua_State& s) -> int {
           lua_pushboolean(&s, arg);
         } else if constexpr (std::is_same_v<T, std::string>) {
           lua_pushstring(&s, arg.c_str());
+        } else if constexpr (std::is_same_v<T, audio::Track>) {
+          lua_newtable(&s);
+          int table = lua_gettop(&s);
+          for (const auto& [key, val] : arg.tags->tags()) {
+            lua_pushstring(&s, database::TagToString(key).c_str());
+            lua_pushstring(&s, val.c_str());
+            lua_settable(&s, table);
+          }
+          if (arg.db_info) {
+            lua_pushliteral(&s, "id");
+            lua_pushinteger(&s, arg.db_info->id);
+            lua_settable(&s, table);
+          }
+
+          lua_pushliteral(&s, "duration");
+          lua_pushinteger(&s, arg.duration);
+          lua_settable(&s, table);
+
+          lua_pushliteral(&s, "bitrate_kbps");
+          lua_pushinteger(&s, arg.bitrate_kbps);
+          lua_settable(&s, table);
+
+          lua_pushliteral(&s, "encoding");
+          lua_pushstring(&s, codecs::StreamTypeToString(arg.encoding).c_str());
+          lua_settable(&s, table);
         } else {
           static_assert(always_false_v<T>, "PushValue missing type");
         }
@@ -228,8 +256,8 @@ auto Property::Update(const LuaValue& v) -> void {
       continue;
     }
 
-    PushValue(*b.first);      // push the argument
+    PushValue(*b.first);           // push the argument
-    CallProtected(b.first, 1, 0); // invoke the closure
+    CallProtected(b.first, 1, 0);  // invoke the closure
   }
 }
 

src/lua/stubs/playback.lua

@@ -8,4 +8,8 @@ local playback = {}
 -- @treturn types.Property a boolean property
 function playback.playing() end
 
+function playback:track() end
+
+function playback:position() end
+
 return playback

src/ui/CMakeLists.txt

@@ -3,15 +3,11 @@
 # SPDX-License-Identifier: GPL-3.0-only
 
 idf_component_register(
-  SRCS "lvgl_task.cpp" "ui_fsm.cpp" "screen_splash.cpp"
+  SRCS "lvgl_task.cpp" "ui_fsm.cpp" "screen_splash.cpp" "encoder_input.cpp"
-  "encoder_input.cpp" "screen_track_browser.cpp" "screen_playing.cpp"
+  "themes.cpp" "widget_top_bar.cpp" "screen.cpp" "modal_progress.cpp"
-  "themes.cpp" "widget_top_bar.cpp" "screen.cpp" "screen_onboarding.cpp"
+  "modal.cpp" "modal_confirm.cpp" "screen_settings.cpp" "event_binding.cpp"
-  "modal_progress.cpp" "modal.cpp" "modal_confirm.cpp" "screen_settings.cpp"
+  "screen_lua.cpp"
-  "event_binding.cpp" "modal_add_to_queue.cpp" "screen_lua.cpp"
   "splash.c" "font_fusion_12.c" "font_fusion_10.c"
-  "icons/battery_empty.c" "icons/battery_full.c" "icons/battery_20.c"
-  "icons/battery_40.c" "icons/battery_60.c" "icons/battery_80.c" "icons/play.c"
-  "icons/pause.c" "icons/bluetooth.c"
   INCLUDE_DIRS "include"
   REQUIRES "drivers" "lvgl" "tinyfsm" "events" "system_fsm" "database" "esp_timer" "battery" "bindey" "lua" "luavgl")
 target_compile_options(${COMPONENT_LIB} PRIVATE ${EXTRA_WARNINGS})

src/ui/include/modal_add_to_queue.hpp

@@ -1,41 +0,0 @@
-/*
- * Copyright 2023 jacqueline <me@jacqueline.id.au>
- *
- * SPDX-License-Identifier: GPL-3.0-only
- */
-
-#pragma once
-
-#include <memory>
-#include <vector>
-
-#include "database.hpp"
-#include "index.hpp"
-#include "lvgl.h"
-
-#include "modal.hpp"
-#include "source.hpp"
-#include "track_queue.hpp"
-
-namespace ui {
-namespace modals {
-
-class AddToQueue : public Modal {
- public:
-  AddToQueue(Screen*,
-             audio::TrackQueue&,
-             std::shared_ptr<playlist::IResetableSource>,
-             bool all_tracks_only = false);
-
- private:
-  audio::TrackQueue& queue_;
-  std::shared_ptr<playlist::IResetableSource> item_;
-  lv_obj_t* container_;
-
-  lv_obj_t* selected_track_btn_;
-  lv_obj_t* all_tracks_btn_;
-  bool all_tracks_;
-};
-
-}  // namespace modals
-}  // namespace ui

src/ui/include/screen_onboarding.hpp

@@ -1,63 +0,0 @@
-/*
- * Copyright 2023 jacqueline <me@jacqueline.id.au>
- *
- * SPDX-License-Identifier: GPL-3.0-only
- */
-
-#pragma once
-
-#include <memory>
-#include <vector>
-
-#include "lvgl.h"
-
-#include "screen.hpp"
-
-namespace ui {
-namespace screens {
-
-class Onboarding : public Screen {
- public:
-  Onboarding(const std::pmr::string& title, bool show_prev, bool show_next);
-
- private:
-  lv_obj_t* window_;
-  lv_obj_t* title_;
-  lv_obj_t* next_button_;
-  lv_obj_t* prev_button_;
-
- protected:
-  lv_obj_t* content_;
-};
-
-namespace onboarding {
-
-class LinkToManual : public Onboarding {
- public:
-  LinkToManual();
-};
-
-class Controls : public Onboarding {
- public:
-  Controls();
-};
-
-class MissingSdCard : public Onboarding {
- public:
-  MissingSdCard();
-};
-
-class FormatSdCard : public Onboarding {
- public:
-  FormatSdCard();
-};
-
-class InitDatabase : public Onboarding {
- public:
-  InitDatabase();
-};
-
-}  // namespace onboarding
-
-}  // namespace screens
-}  // namespace ui

src/ui/include/screen_playing.hpp

@@ -1,73 +0,0 @@
-/*
- * Copyright 2023 jacqueline <me@jacqueline.id.au>
- *
- * SPDX-License-Identifier: GPL-3.0-only
- */
-
-#pragma once
-
-#include <stdint.h>
-#include <sys/_stdint.h>
-#include <memory>
-#include <vector>
-
-#include "bindey/property.h"
-#include "esp_log.h"
-#include "lvgl.h"
-
-#include "database.hpp"
-#include "future_fetcher.hpp"
-#include "model_playback.hpp"
-#include "model_top_bar.hpp"
-#include "screen.hpp"
-#include "track.hpp"
-#include "track_queue.hpp"
-
-namespace ui {
-namespace screens {
-
-/*
- * The 'Now Playing' / 'Currently Playing' screen that contains information
- * about the current track, as well as playback controls.
- */
-class Playing : public Screen {
- public:
-  explicit Playing(models::TopBar&,
-                   models::Playback& playback_model,
-                   std::weak_ptr<database::Database> db,
-                   audio::TrackQueue& queue);
-  ~Playing();
-
-  auto Tick() -> void override;
-
-  auto OnFocusAboveFold() -> void;
-  auto OnFocusBelowFold() -> void;
-
-  Playing(const Playing&) = delete;
-  Playing& operator=(const Playing&) = delete;
-
- private:
-  auto control_button(lv_obj_t* parent, char* icon) -> lv_obj_t*;
-  auto next_up_label(lv_obj_t* parent, const std::pmr::string& text)
-      -> lv_obj_t*;
-
-  std::weak_ptr<database::Database> db_;
-  audio::TrackQueue& queue_;
-
-  bindey::property<std::shared_ptr<database::Track>> current_track_;
-  bindey::property<std::vector<std::shared_ptr<database::Track>>> next_tracks_;
-
-  std::unique_ptr<database::FutureFetcher<std::shared_ptr<database::Track>>>
-      new_track_;
-  std::unique_ptr<
-      database::FutureFetcher<std::vector<std::shared_ptr<database::Track>>>>
-      new_next_tracks_;
-
-  lv_obj_t* next_up_header_;
-  lv_obj_t* next_up_label_;
-  lv_obj_t* next_up_hint_;
-  lv_obj_t* next_up_container_;
-};
-
-}  // namespace screens
-}  // namespace ui

src/ui/include/screen_track_browser.hpp

@@ -1,74 +0,0 @@
-/*
- * Copyright 2023 jacqueline <me@jacqueline.id.au>
- *
- * SPDX-License-Identifier: GPL-3.0-only
- */
-
-#pragma once
-
-#include <deque>
-#include <memory>
-#include <string>
-#include <vector>
-
-#include "lvgl.h"
-
-#include "database.hpp"
-#include "model_top_bar.hpp"
-#include "screen.hpp"
-#include "track_queue.hpp"
-
-namespace ui {
-namespace screens {
-
-class TrackBrowser : public Screen {
- public:
-  TrackBrowser(
-      models::TopBar& top_bar,
-      audio::TrackQueue& queue,
-      std::weak_ptr<database::Database> db,
-      const std::pmr::vector<std::pmr::string>& breadcrumbs,
-      std::future<database::Result<database::IndexRecord>*>&& initial_page);
-  ~TrackBrowser() {}
-
-  auto Tick() -> void override;
-
-  auto OnItemSelected(lv_event_t* ev) -> void;
-  auto OnItemClicked(lv_event_t* ev) -> void;
-
- private:
-  enum Position {
-    START = 0,
-    END = 1,
-  };
-  auto AddLoadingIndictor(Position pos) -> void;
-  auto AddResults(Position pos,
-                  std::shared_ptr<database::Result<database::IndexRecord>>)
-      -> void;
-  auto DropPage(Position pos) -> void;
-  auto FetchNewPage(Position pos) -> void;
-
-  auto GetNumRecords() -> std::size_t;
-  auto GetItemIndex(lv_obj_t* obj) -> std::optional<std::size_t>;
-
-  audio::TrackQueue& queue_;
-  std::weak_ptr<database::Database> db_;
-  lv_obj_t* back_button_;
-  lv_obj_t* play_button_;
-  lv_obj_t* enqueue_button_;
-  lv_obj_t* list_;
-  lv_obj_t* loading_indicator_;
-
-  std::pmr::vector<std::pmr::string> breadcrumbs_;
-
-  std::optional<Position> loading_pos_;
-  std::optional<std::future<database::Result<database::IndexRecord>*>>
-      loading_page_;
-
-  std::shared_ptr<database::Result<database::IndexRecord>> initial_page_;
-  std::deque<std::shared_ptr<database::Result<database::IndexRecord>>>
-      current_pages_;
-};
-
-}  // namespace screens
-}  // namespace ui

src/ui/include/ui_fsm.hpp

@@ -6,8 +6,7 @@
 
 #pragma once
 
-#include <stdint.h>
+#include <cstdint>
-#include <sys/_stdint.h>
 #include <memory>
 #include <stack>
 
@@ -23,7 +22,6 @@
 #include "nvs.hpp"
 #include "property.hpp"
 #include "relative_wheel.hpp"
-#include "screen_playing.hpp"
 #include "screen_settings.hpp"
 #include "service_locator.hpp"
 #include "tinyfsm.hpp"
@@ -60,16 +58,14 @@ class UiState : public tinyfsm::Fsm<UiState> {
   virtual void react(const system_fsm::BatteryStateChanged&);
   virtual void react(const audio::PlaybackStarted&);
   virtual void react(const audio::PlaybackFinished&);
-  void react(const audio::PlaybackUpdate&);
+  virtual void react(const audio::PlaybackUpdate&);
-  void react(const audio::QueueUpdate&);
+  virtual void react(const audio::QueueUpdate&);
 
   virtual void react(const system_fsm::KeyLockChanged&);
   virtual void react(const OnLuaError&) {}
 
   virtual void react(const internal::RecordSelected&) {}
-  virtual void react(const internal::IndexSelected&) {}
   virtual void react(const internal::BackPressed&) {}
-  virtual void react(const internal::ShowNowPlaying&){};
   virtual void react(const internal::ShowSettingsPage&){};
   virtual void react(const internal::ModalCancelPressed&) {
     sCurrentModal.reset();
@@ -127,12 +123,12 @@ class Lua : public UiState {
 
   void react(const OnLuaError&) override;
 
-  void react(const internal::IndexSelected&) override;
-  void react(const internal::ShowNowPlaying&) override;
   void react(const internal::ShowSettingsPage&) override;
 
   void react(const system_fsm::BatteryStateChanged&) override;
+  void react(const audio::QueueUpdate&) override;
   void react(const audio::PlaybackStarted&) override;
+  void react(const audio::PlaybackUpdate&) override;
   void react(const audio::PlaybackFinished&) override;
 
   using UiState::react;
@@ -144,32 +140,23 @@ class Lua : public UiState {
   std::shared_ptr<lua::Property> battery_pct_;
   std::shared_ptr<lua::Property> battery_mv_;
   std::shared_ptr<lua::Property> battery_charging_;
+
   std::shared_ptr<lua::Property> bluetooth_en_;
+
   std::shared_ptr<lua::Property> playback_playing_;
   std::shared_ptr<lua::Property> playback_track_;
-};
+  std::shared_ptr<lua::Property> playback_position_;
-
-class Onboarding : public UiState {
- public:
-  void entry() override;
-
-  void react(const internal::OnboardingNavigate&) override;
 
-  using UiState::react;
+  std::shared_ptr<lua::Property> queue_position_;
-
+  std::shared_ptr<lua::Property> queue_size_;
- private:
-  uint8_t progress_;
-  bool has_formatted_;
 };
 
 class Browse : public UiState {
  public:
   void entry() override;
 
-  void react(const internal::RecordSelected&) override;
   void react(const internal::BackPressed&) override;
 
-  void react(const internal::ShowNowPlaying&) override;
   void react(const internal::ShowSettingsPage&) override;
   void react(const internal::ReindexDatabase&) override;
 
@@ -178,16 +165,6 @@ class Browse : public UiState {
   using UiState::react;
 };
 
-class Playing : public UiState {
- public:
-  void entry() override;
-  void exit() override;
-
-  void react(const internal::BackPressed&) override;
-
-  using UiState::react;
-};
-
 class Indexing : public UiState {
  public:
   void entry() override;

src/ui/modal_add_to_queue.cpp

@@ -1,182 +0,0 @@
-/*
- * Copyright 2023 jacqueline <me@jacqueline.id.au>
- *
- * SPDX-License-Identifier: GPL-3.0-only
- */
-
-#include "modal_add_to_queue.hpp"
-
-#include "core/lv_event.h"
-#include "core/lv_obj.h"
-#include "core/lv_obj_tree.h"
-#include "esp_log.h"
-
-#include "core/lv_group.h"
-#include "core/lv_obj_pos.h"
-#include "event_queue.hpp"
-#include "extra/layouts/flex/lv_flex.h"
-#include "extra/widgets/list/lv_list.h"
-#include "extra/widgets/menu/lv_menu.h"
-#include "extra/widgets/spinner/lv_spinner.h"
-#include "extra/widgets/tabview/lv_tabview.h"
-#include "hal/lv_hal_disp.h"
-#include "index.hpp"
-#include "misc/lv_area.h"
-#include "misc/lv_color.h"
-#include "source.hpp"
-#include "themes.hpp"
-#include "track_queue.hpp"
-#include "ui_events.hpp"
-#include "ui_fsm.hpp"
-#include "widget_top_bar.hpp"
-#include "widgets/lv_btn.h"
-#include "widgets/lv_label.h"
-
-namespace ui {
-namespace modals {
-
-AddToQueue::AddToQueue(Screen* host,
-                       audio::TrackQueue& queue,
-                       std::shared_ptr<playlist::IResetableSource> item,
-                       bool all_tracks_only)
-    : Modal(host), queue_(queue), item_(item), all_tracks_(0) {
-  lv_obj_set_layout(root_, LV_LAYOUT_FLEX);
-  lv_obj_set_flex_flow(root_, LV_FLEX_FLOW_COLUMN);
-  lv_obj_set_flex_align(root_, LV_FLEX_ALIGN_SPACE_EVENLY, LV_FLEX_ALIGN_START,
-                        LV_FLEX_ALIGN_CENTER);
-
-  if (all_tracks_only) {
-    all_tracks_ = true;
-  } else {
-    lv_obj_t* button_container = lv_obj_create(root_);
-    lv_obj_set_size(button_container, lv_pct(100), LV_SIZE_CONTENT);
-    lv_obj_set_layout(button_container, LV_LAYOUT_FLEX);
-    lv_obj_set_flex_flow(button_container, LV_FLEX_FLOW_ROW);
-    lv_obj_set_flex_align(button_container, LV_FLEX_ALIGN_SPACE_EVENLY,
-                          LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
-
-    selected_track_btn_ = lv_btn_create(button_container);
-    lv_obj_t* label = lv_label_create(selected_track_btn_);
-    lv_label_set_text(label, "Selected");
-    lv_group_add_obj(group_, selected_track_btn_);
-    lv_obj_add_state(selected_track_btn_, LV_STATE_CHECKED);
-    themes::Theme::instance()->ApplyStyle(selected_track_btn_,
-                                          themes::Style::kTab);
-
-    lv_bind(selected_track_btn_, LV_EVENT_CLICKED, [this](lv_obj_t*) {
-      lv_obj_add_state(selected_track_btn_, LV_STATE_CHECKED);
-      lv_obj_clear_state(all_tracks_btn_, LV_STATE_CHECKED);
-      all_tracks_ = false;
-    });
-
-    all_tracks_btn_ = lv_btn_create(button_container);
-    label = lv_label_create(all_tracks_btn_);
-    lv_label_set_text(label, "From here");
-    lv_group_add_obj(group_, all_tracks_btn_);
-    themes::Theme::instance()->ApplyStyle(all_tracks_btn_, themes::Style::kTab);
-
-    lv_bind(all_tracks_btn_, LV_EVENT_CLICKED, [this](lv_obj_t*) {
-      lv_obj_clear_state(selected_track_btn_, LV_STATE_CHECKED);
-      lv_obj_add_state(all_tracks_btn_, LV_STATE_CHECKED);
-      all_tracks_ = true;
-    });
-
-    lv_obj_t* spacer = lv_obj_create(root_);
-    lv_obj_set_size(spacer, 1, 4);
-  }
-
-  lv_obj_t* button_container = lv_obj_create(root_);
-  lv_obj_set_size(button_container, lv_pct(100), LV_SIZE_CONTENT);
-  lv_obj_set_layout(button_container, LV_LAYOUT_FLEX);
-  lv_obj_set_flex_flow(button_container, LV_FLEX_FLOW_ROW);
-  lv_obj_set_flex_align(button_container, LV_FLEX_ALIGN_SPACE_EVENLY,
-                        LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
-
-  lv_obj_t* btn = lv_btn_create(button_container);
-  lv_obj_t* label = lv_label_create(btn);
-  lv_label_set_text(label, "Play now");
-  lv_group_add_obj(group_, btn);
-
-  lv_bind(btn, LV_EVENT_CLICKED, [this](lv_obj_t*) {
-    queue_.Clear();
-    if (all_tracks_) {
-      queue_.IncludeNext(item_);
-    } else {
-      auto track = item_->Current();
-      if (track) {
-        queue_.AddNext(*track);
-      }
-    }
-    events::Ui().Dispatch(internal::ModalCancelPressed{});
-    events::Ui().Dispatch(internal::ShowNowPlaying{});
-  });
-
-  bool has_queue = queue.GetCurrent().has_value();
-
-  if (has_queue) {
-    label = lv_label_create(root_);
-    lv_label_set_text(label, "Enqueue");
-
-    lv_obj_t* spacer = lv_obj_create(root_);
-    lv_obj_set_size(spacer, 1, 4);
-
-    button_container = lv_obj_create(root_);
-    lv_obj_set_size(button_container, lv_pct(100), LV_SIZE_CONTENT);
-    lv_obj_set_layout(button_container, LV_LAYOUT_FLEX);
-    lv_obj_set_flex_flow(button_container, LV_FLEX_FLOW_ROW);
-    lv_obj_set_flex_align(button_container, LV_FLEX_ALIGN_SPACE_EVENLY,
-                          LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
-
-    btn = lv_btn_create(button_container);
-    label = lv_label_create(btn);
-    lv_label_set_text(label, "Next");
-    lv_group_add_obj(group_, btn);
-
-    lv_bind(btn, LV_EVENT_CLICKED, [this](lv_obj_t*) {
-      if (all_tracks_) {
-        queue_.IncludeNext(item_);
-      } else {
-        queue_.AddNext(item_->Current().value());
-      }
-      events::Ui().Dispatch(internal::ModalCancelPressed{});
-    });
-
-    btn = lv_btn_create(button_container);
-    label = lv_label_create(btn);
-    lv_label_set_text(label, "Last");
-    lv_group_add_obj(group_, btn);
-
-    lv_bind(btn, LV_EVENT_CLICKED, [this](lv_obj_t*) {
-      if (all_tracks_) {
-        queue_.IncludeLast(item_);
-      } else {
-        queue_.AddLast(item_->Current().value());
-      }
-      events::Ui().Dispatch(internal::ModalCancelPressed{});
-    });
-  }
-
-  lv_obj_t* spacer = lv_obj_create(root_);
-  lv_obj_set_size(spacer, 1, 4);
-
-  button_container = lv_obj_create(root_);
-  lv_obj_set_size(button_container, lv_pct(100), LV_SIZE_CONTENT);
-  lv_obj_set_layout(button_container, LV_LAYOUT_FLEX);
-  lv_obj_set_flex_flow(button_container, LV_FLEX_FLOW_ROW);
-  lv_obj_set_flex_align(button_container, LV_FLEX_ALIGN_END,
-                        LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
-
-  btn = lv_btn_create(button_container);
-  label = lv_label_create(btn);
-  lv_label_set_text(label, "Cancel");
-  lv_group_add_obj(group_, btn);
-  lv_obj_set_style_text_color(label, lv_palette_main(LV_PALETTE_RED),
-                              LV_PART_MAIN);
-
-  lv_bind(btn, LV_EVENT_CLICKED, [](lv_obj_t*) {
-    events::Ui().Dispatch(internal::ModalCancelPressed{});
-  });
-}
-
-}  // namespace modals
-}  // namespace ui

src/ui/screen_lua.cpp

@@ -6,9 +6,9 @@
 
 #include "screen_lua.hpp"
 
-#include "lauxlib.h"
+#include "core/lv_obj_tree.h"
-#include "lua.h"
 #include "lua.hpp"
+
 #include "luavgl.h"
 
 namespace ui {

src/ui/screen_onboarding.cpp

@@ -1,146 +0,0 @@
-/*
- * Copyright 2023 jacqueline <me@jacqueline.id.au>
- *
- * SPDX-License-Identifier: GPL-3.0-only
- */
-
-#include "screen_onboarding.hpp"
-
-#include "core/lv_event.h"
-#include "core/lv_obj_pos.h"
-#include "draw/lv_draw_rect.h"
-#include "event_queue.hpp"
-#include "extra/libs/qrcode/lv_qrcode.h"
-#include "extra/widgets/win/lv_win.h"
-#include "font/lv_symbol_def.h"
-#include "misc/lv_color.h"
-#include "ui_events.hpp"
-#include "widgets/lv_btn.h"
-#include "widgets/lv_label.h"
-#include "widgets/lv_switch.h"
-
-static const char kManualUrl[] = "https://tangara.gay/onboarding";
-
-namespace ui {
-namespace screens {
-
-static void next_btn_cb(lv_event_t* ev) {
-  events::Ui().Dispatch(internal::OnboardingNavigate{.forwards = true});
-}
-
-static void prev_btn_cb(lv_event_t* ev) {
-  events::Ui().Dispatch(internal::OnboardingNavigate{.forwards = false});
-}
-
-Onboarding::Onboarding(const std::pmr::string& title,
-                       bool show_prev,
-                       bool show_next) {
-  window_ = lv_win_create(root_, 18);
-  if (show_prev) {
-    prev_button_ = lv_win_add_btn(window_, LV_SYMBOL_LEFT, 20);
-    lv_obj_add_event_cb(prev_button_, prev_btn_cb, LV_EVENT_CLICKED, NULL);
-    lv_group_add_obj(group_, prev_button_);
-  }
-  title_ = lv_win_add_title(window_, title.c_str());
-  if (show_next) {
-    next_button_ = lv_win_add_btn(window_, LV_SYMBOL_RIGHT, 20);
-    lv_obj_add_event_cb(next_button_, next_btn_cb, LV_EVENT_CLICKED, NULL);
-    lv_group_add_obj(group_, next_button_);
-  }
-
-  content_ = lv_win_get_content(window_);
-  lv_obj_set_layout(content_, LV_LAYOUT_FLEX);
-  lv_obj_set_flex_flow(content_, LV_FLEX_FLOW_COLUMN);
-  lv_obj_set_flex_align(content_, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_CENTER,
-                        LV_FLEX_ALIGN_CENTER);
-}
-
-namespace onboarding {
-
-LinkToManual::LinkToManual() : Onboarding("Welcome!", false, true) {
-  lv_obj_t* intro = lv_label_create(content_);
-  lv_label_set_text(intro, "For full instructions, see the manual:");
-  lv_label_set_long_mode(intro, LV_LABEL_LONG_WRAP);
-  lv_obj_set_size(intro, lv_pct(100), LV_SIZE_CONTENT);
-
-  lv_obj_t* qr =
-      lv_qrcode_create(content_, 80, lv_color_black(), lv_color_white());
-  lv_qrcode_update(qr, kManualUrl, sizeof(kManualUrl));
-}
-
-static void create_radio_button(lv_obj_t* parent,
-                                const std::pmr::string& text) {
-  lv_obj_t* obj = lv_checkbox_create(parent);
-  lv_checkbox_set_text(obj, text.c_str());
-  // TODO: radio styling
-}
-
-Controls::Controls() : Onboarding("Controls", true, true) {
-  lv_obj_t* label = lv_label_create(content_);
-  lv_label_set_text(label, "this screen changes your control scheme.");
-
-  label = lv_label_create(content_);
-  lv_label_set_text(label, "how does the touch wheel behave?");
-
-  create_radio_button(content_, "iPod-style");
-  create_radio_button(content_, "Directional");
-  create_radio_button(content_, "One Big Button");
-
-  label = lv_label_create(content_);
-  lv_label_set_text(label, "how do the side buttons behave?");
-
-  create_radio_button(content_, "Adjust volume");
-  create_radio_button(content_, "Scroll");
-}
-
-MissingSdCard::MissingSdCard() : Onboarding("SD Card", true, false) {
-  lv_obj_t* label = lv_label_create(content_);
-  lv_label_set_text(label,
-                    "It looks like there isn't an SD card present. Please "
-                    "insert one to continue.");
-  lv_label_set_long_mode(label, LV_LABEL_LONG_WRAP);
-  lv_obj_set_size(label, lv_pct(100), LV_SIZE_CONTENT);
-}
-
-FormatSdCard::FormatSdCard() : Onboarding("SD Card", true, false) {
-  lv_obj_t* label = lv_label_create(content_);
-  lv_label_set_text(label,
-                    "It looks like there is an SD card present, but it has not "
-                    "been formatted. Would you like to format it?");
-  lv_label_set_long_mode(label, LV_LABEL_LONG_WRAP);
-  lv_obj_set_size(label, lv_pct(100), LV_SIZE_CONTENT);
-
-  lv_obj_t* button = lv_btn_create(content_);
-  label = lv_label_create(button);
-  lv_label_set_text(label, "Format");
-
-  lv_obj_t* exfat_con = lv_obj_create(content_);
-  lv_obj_set_layout(exfat_con, LV_LAYOUT_FLEX);
-  lv_obj_set_size(exfat_con, lv_pct(100), LV_SIZE_CONTENT);
-  lv_obj_set_flex_flow(exfat_con, LV_FLEX_FLOW_ROW);
-  lv_obj_set_flex_align(exfat_con, LV_FLEX_ALIGN_SPACE_EVENLY,
-                        LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_START);
-
-  label = lv_label_create(exfat_con);
-  lv_label_set_text(label, "Use exFAT");
-  lv_switch_create(exfat_con);
-}
-
-InitDatabase::InitDatabase() : Onboarding("Database", true, true) {
-  lv_obj_t* label = lv_label_create(content_);
-  lv_label_set_text(label,
-                    "Many of Tangara's browsing features rely building an "
-                    "index of your music. Would you like to do this now? It "
-                    "will take some time if you have a large collection.");
-  lv_label_set_long_mode(label, LV_LABEL_LONG_WRAP);
-  lv_obj_set_size(label, lv_pct(100), LV_SIZE_CONTENT);
-
-  lv_obj_t* button = lv_btn_create(content_);
-  label = lv_label_create(button);
-  lv_label_set_text(label, "Index");
-}
-
-}  // namespace onboarding
-
-}  // namespace screens
-}  // namespace ui

src/ui/screen_playing.cpp

@@ -1,338 +0,0 @@
-/*
- * Copyright 2023 jacqueline <me@jacqueline.id.au>
- *
- * SPDX-License-Identifier: GPL-3.0-only
- */
-
-#include "screen_playing.hpp"
-#include <sys/_stdint.h>
-#include <memory>
-
-#include "audio_events.hpp"
-#include "bindey/binding.h"
-#include "core/lv_event.h"
-#include "core/lv_obj.h"
-#include "core/lv_obj_scroll.h"
-#include "core/lv_obj_tree.h"
-#include "database.hpp"
-#include "esp_log.h"
-#include "extra/layouts/flex/lv_flex.h"
-#include "extra/layouts/grid/lv_grid.h"
-#include "font/lv_symbol_def.h"
-#include "future_fetcher.hpp"
-#include "lvgl.h"
-
-#include "core/lv_group.h"
-#include "core/lv_obj_pos.h"
-#include "event_queue.hpp"
-#include "extra/widgets/list/lv_list.h"
-#include "extra/widgets/menu/lv_menu.h"
-#include "extra/widgets/spinner/lv_spinner.h"
-#include "future_fetcher.hpp"
-#include "hal/lv_hal_disp.h"
-#include "index.hpp"
-#include "misc/lv_anim.h"
-#include "misc/lv_area.h"
-#include "misc/lv_color.h"
-#include "misc/lv_txt.h"
-#include "model_playback.hpp"
-#include "model_top_bar.hpp"
-#include "track.hpp"
-#include "ui_events.hpp"
-#include "ui_fsm.hpp"
-#include "widget_top_bar.hpp"
-#include "widgets/lv_btn.h"
-#include "widgets/lv_img.h"
-#include "widgets/lv_label.h"
-#include "widgets/lv_slider.h"
-
-namespace ui {
-namespace screens {
-
-static void above_fold_focus_cb(lv_event_t* ev) {
-  if (ev->user_data == NULL) {
-    return;
-  }
-  Playing* instance = reinterpret_cast<Playing*>(ev->user_data);
-  instance->OnFocusAboveFold();
-}
-
-static void below_fold_focus_cb(lv_event_t* ev) {
-  if (ev->user_data == NULL) {
-    return;
-  }
-  Playing* instance = reinterpret_cast<Playing*>(ev->user_data);
-  instance->OnFocusBelowFold();
-}
-
-static lv_style_t scrubber_style;
-
-auto info_label(lv_obj_t* parent) -> lv_obj_t* {
-  lv_obj_t* label = lv_label_create(parent);
-  lv_obj_set_size(label, lv_pct(100), LV_SIZE_CONTENT);
-  lv_label_set_text(label, "");
-  lv_label_set_long_mode(label, LV_LABEL_LONG_DOT);
-  lv_obj_set_style_text_align(label, LV_TEXT_ALIGN_CENTER, 0);
-  lv_obj_center(label);
-
-  lv_obj_set_style_bg_color(label, lv_color_black(), LV_STATE_FOCUSED);
-  return label;
-}
-
-auto Playing::control_button(lv_obj_t* parent, char* icon) -> lv_obj_t* {
-  lv_obj_t* button = lv_btn_create(parent);
-  lv_obj_set_size(button, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
-
-  lv_obj_clear_flag(button, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
-  lv_obj_add_event_cb(button, above_fold_focus_cb, LV_EVENT_FOCUSED, this);
-
-  lv_obj_t* icon_obj = lv_img_create(button);
-  lv_img_set_src(icon_obj, icon);
-
-  return button;
-}
-
-auto Playing::next_up_label(lv_obj_t* parent, const std::pmr::string& text)
-    -> lv_obj_t* {
-  lv_obj_t* button = lv_list_add_btn(parent, NULL, text.c_str());
-  lv_label_set_long_mode(lv_obj_get_child(button, -1), LV_LABEL_LONG_DOT);
-  lv_obj_add_event_cb(button, below_fold_focus_cb, LV_EVENT_FOCUSED, this);
-  lv_group_add_obj(group_, button);
-  return button;
-}
-
-Playing::Playing(models::TopBar& top_bar_model,
-                 models::Playback& playback_model,
-                 std::weak_ptr<database::Database> db,
-                 audio::TrackQueue& queue)
-    : db_(db),
-      queue_(queue),
-      current_track_(),
-      next_tracks_(),
-      new_track_(),
-      new_next_tracks_() {
-  lv_obj_set_layout(content_, LV_LAYOUT_FLEX);
-  lv_group_set_wrap(group_, false);
-
-  lv_obj_set_size(content_, lv_pct(100), lv_disp_get_ver_res(NULL));
-  lv_obj_set_flex_flow(content_, LV_FLEX_FLOW_COLUMN);
-  lv_obj_set_flex_align(content_, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_START,
-                        LV_FLEX_ALIGN_START);
-
-  lv_obj_set_scrollbar_mode(content_, LV_SCROLLBAR_MODE_OFF);
-
-  lv_obj_t* above_fold_container = lv_obj_create(content_);
-  lv_obj_set_layout(above_fold_container, LV_LAYOUT_FLEX);
-  lv_obj_set_size(above_fold_container, lv_pct(100), lv_disp_get_ver_res(NULL));
-  lv_obj_set_flex_flow(above_fold_container, LV_FLEX_FLOW_COLUMN);
-  lv_obj_set_flex_align(above_fold_container, LV_FLEX_ALIGN_START,
-                        LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_START);
-
-  widgets::TopBar::Configuration config{
-      .show_back_button = true,
-      .title = "Now Playing",
-  };
-  CreateTopBar(above_fold_container, config, top_bar_model);
-
-  lv_obj_t* now_playing_container = lv_obj_create(above_fold_container);
-  lv_obj_set_layout(now_playing_container, LV_LAYOUT_FLEX);
-  lv_obj_set_width(now_playing_container, lv_pct(100));
-  lv_obj_set_flex_grow(now_playing_container, 1);
-  lv_obj_set_flex_flow(now_playing_container, LV_FLEX_FLOW_COLUMN);
-  lv_obj_set_flex_align(now_playing_container, LV_FLEX_ALIGN_SPACE_BETWEEN,
-                        LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_START);
-
-  lv_obj_set_style_pad_left(now_playing_container, 4, LV_PART_MAIN);
-  lv_obj_set_style_pad_right(now_playing_container, 4, LV_PART_MAIN);
-
-  lv_obj_t* info_container = lv_obj_create(now_playing_container);
-  lv_obj_set_layout(info_container, LV_LAYOUT_FLEX);
-  lv_obj_set_width(info_container, lv_pct(100));
-  lv_obj_set_flex_grow(info_container, 1);
-  lv_obj_set_flex_flow(info_container, LV_FLEX_FLOW_COLUMN);
-  lv_obj_set_flex_align(info_container, LV_FLEX_ALIGN_CENTER,
-                        LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
-
-  lv_obj_t* artist_label = info_label(info_container);
-  lv_obj_t* album_label = info_label(info_container);
-  lv_obj_t* title_label = info_label(info_container);
-
-  lv_obj_t* scrubber = lv_slider_create(now_playing_container);
-  lv_obj_set_size(scrubber, lv_pct(100), 5);
-
-  lv_style_init(&scrubber_style);
-  lv_style_set_bg_color(&scrubber_style, lv_color_black());
-  lv_obj_add_style(scrubber, &scrubber_style, LV_PART_INDICATOR);
-
-  lv_group_add_obj(group_, scrubber);
-
-  data_bindings_.emplace_back(playback_model.current_track.onChangedAndNow(
-      [=, this](const std::optional<database::TrackId>& id) {
-        if (!id) {
-          return;
-        }
-        if (current_track_.get() && current_track_.get()->data().id == *id) {
-          return;
-        }
-        auto db = db_.lock();
-        if (!db) {
-          return;
-        }
-        // Clear the playback progress whilst we're waiting for the next
-        // track's data to load.
-        lv_slider_set_value(scrubber, 0, LV_ANIM_OFF);
-        new_track_.reset(
-            new database::FutureFetcher<std::shared_ptr<database::Track>>(
-                db->GetTrack(*id)));
-      }));
-
-  data_bindings_.emplace_back(current_track_.onChangedAndNow(
-      [=](const std::shared_ptr<database::Track>& t) {
-        if (!t) {
-          return;
-        }
-        lv_label_set_text(
-            artist_label,
-            t->tags().at(database::Tag::kArtist).value_or("").c_str());
-        lv_label_set_text(
-            album_label,
-            t->tags().at(database::Tag::kAlbum).value_or("").c_str());
-        lv_label_set_text(title_label, t->TitleOrFilename().c_str());
-      }));
-
-  data_bindings_.emplace_back(
-      playback_model.current_track_duration.onChangedAndNow([=](uint32_t d) {
-        lv_slider_set_range(scrubber, 0, std::max<uint32_t>(1, d));
-      }));
-  data_bindings_.emplace_back(
-      playback_model.current_track_position.onChangedAndNow(
-          [=](uint32_t p) { lv_slider_set_value(scrubber, p, LV_ANIM_OFF); }));
-
-  lv_obj_t* spacer = lv_obj_create(now_playing_container);
-  lv_obj_set_size(spacer, 1, 4);
-
-  lv_obj_t* controls_container = lv_obj_create(now_playing_container);
-  lv_obj_set_size(controls_container, lv_pct(100), 20);
-  lv_obj_set_flex_flow(controls_container, LV_FLEX_FLOW_ROW);
-  lv_obj_set_flex_align(controls_container, LV_FLEX_ALIGN_SPACE_EVENLY,
-                        LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
-
-  lv_obj_t* play_pause_control =
-      control_button(controls_container, LV_SYMBOL_PLAY);
-  lv_group_add_obj(group_, play_pause_control);
-  lv_bind(play_pause_control, LV_EVENT_CLICKED, [=](lv_obj_t*) {
-    events::Audio().Dispatch(audio::TogglePlayPause{});
-  });
-
-  lv_obj_t* track_prev = control_button(controls_container, LV_SYMBOL_PREV);
-  lv_group_add_obj(group_, track_prev);
-  lv_bind(track_prev, LV_EVENT_CLICKED, [=](lv_obj_t*) { queue_.Previous(); });
-
-  lv_obj_t* track_next = control_button(controls_container, LV_SYMBOL_NEXT);
-  lv_group_add_obj(group_, track_next);
-  lv_bind(track_next, LV_EVENT_CLICKED, [=](lv_obj_t*) { queue_.Next(); });
-
-  lv_obj_t* shuffle = control_button(controls_container, LV_SYMBOL_SHUFFLE);
-  lv_group_add_obj(group_, shuffle);
-  // lv_bind(shuffle, LV_EVENT_CLICKED, [=](lv_obj_t*) { queue_ });
-
-  lv_group_add_obj(group_, control_button(controls_container, LV_SYMBOL_LOOP));
-
-  next_up_header_ = lv_obj_create(now_playing_container);
-  lv_obj_set_size(next_up_header_, lv_pct(100), 15);
-  lv_obj_set_flex_flow(next_up_header_, LV_FLEX_FLOW_ROW);
-  lv_obj_set_flex_align(next_up_header_, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_END,
-                        LV_FLEX_ALIGN_END);
-
-  next_up_label_ = lv_label_create(next_up_header_);
-  lv_label_set_text(next_up_label_, "");
-  lv_obj_set_height(next_up_label_, lv_pct(100));
-  lv_obj_set_flex_grow(next_up_label_, 1);
-
-  next_up_hint_ = lv_label_create(next_up_header_);
-  lv_label_set_text(next_up_hint_, "");
-  lv_obj_set_size(next_up_hint_, LV_SIZE_CONTENT, lv_pct(100));
-
-  next_up_container_ = lv_list_create(content_);
-  lv_obj_set_layout(next_up_container_, LV_LAYOUT_FLEX);
-  lv_obj_set_size(next_up_container_, lv_pct(100), lv_disp_get_ver_res(NULL));
-  lv_obj_set_flex_flow(next_up_container_, LV_FLEX_FLOW_COLUMN);
-  lv_obj_set_flex_align(next_up_container_, LV_FLEX_ALIGN_START,
-                        LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
-
-  data_bindings_.emplace_back(playback_model.upcoming_tracks.onChangedAndNow(
-      [=, this](const std::vector<database::TrackId>& ids) {
-        auto db = db_.lock();
-        if (!db) {
-          return;
-        }
-        lv_label_set_text(next_up_label_, "Next up");
-
-        new_next_tracks_.reset(new database::FutureFetcher<
-                               std::vector<std::shared_ptr<database::Track>>>(
-            db->GetBulkTracks(ids)));
-      }));
-
-  data_bindings_.emplace_back(next_tracks_.onChangedAndNow(
-      [=](const std::vector<std::shared_ptr<database::Track>>& tracks) {
-        // TODO(jacqueline): Do a proper diff to maintain selection.
-        int children = lv_obj_get_child_cnt(next_up_container_);
-        while (children > 0) {
-          lv_obj_del(lv_obj_get_child(next_up_container_, 0));
-          children--;
-        }
-
-        if (tracks.empty()) {
-          lv_label_set_text(next_up_label_, "Nothing queued");
-          lv_label_set_text(next_up_hint_, "");
-          return;
-        } else {
-          lv_label_set_text(next_up_label_, "Next up");
-          lv_label_set_text(next_up_hint_, "");
-        }
-
-        for (const auto& track : tracks) {
-          lv_group_add_obj(group_, next_up_label(next_up_container_,
-                                                 track->TitleOrFilename()));
-        }
-      }));
-}
-
-Playing::~Playing() {}
-
-auto Playing::Tick() -> void {
-  if (new_track_ && new_track_->Finished()) {
-    auto res = new_track_->Result();
-    new_track_.reset();
-    if (res) {
-      current_track_(*res);
-    }
-  }
-  if (new_next_tracks_ && new_next_tracks_->Finished()) {
-    auto res = new_next_tracks_->Result();
-    new_next_tracks_.reset();
-    if (res) {
-      std::vector<std::shared_ptr<database::Track>> filtered;
-      for (const auto& t : *res) {
-        if (t) {
-          filtered.push_back(t);
-        }
-      }
-      next_tracks_.set(filtered);
-    }
-  }
-}
-
-auto Playing::OnFocusAboveFold() -> void {
-  lv_obj_scroll_to_y(content_, 0, LV_ANIM_ON);
-}
-
-auto Playing::OnFocusBelowFold() -> void {
-  if (lv_obj_get_scroll_y(content_) < lv_obj_get_y(next_up_header_) + 20) {
-    lv_obj_scroll_to_y(content_, lv_obj_get_y(next_up_header_) + 20,
-                       LV_ANIM_ON);
-  }
-}
-
-}  // namespace screens
-}  // namespace ui

src/ui/screen_track_browser.cpp

@@ -1,431 +0,0 @@
-/*
- * Copyright 2023 jacqueline <me@jacqueline.id.au>
- *
- * SPDX-License-Identifier: GPL-3.0-only
- */
-
-#include <algorithm>
-#include <memory>
-
-#include "core/lv_obj.h"
-#include "core/lv_obj_scroll.h"
-#include "core/lv_obj_tree.h"
-#include "database.hpp"
-#include "event_queue.hpp"
-#include "extra/layouts/flex/lv_flex.h"
-#include "font/lv_symbol_def.h"
-#include "lvgl.h"
-#include "misc/lv_anim.h"
-#include "misc/lv_color.h"
-#include "model_top_bar.hpp"
-
-#include "core/lv_event.h"
-#include "esp_log.h"
-
-#include "core/lv_group.h"
-#include "core/lv_obj_pos.h"
-#include "extra/widgets/list/lv_list.h"
-#include "extra/widgets/menu/lv_menu.h"
-#include "extra/widgets/spinner/lv_spinner.h"
-#include "hal/lv_hal_disp.h"
-#include "misc/lv_area.h"
-#include "screen_track_browser.hpp"
-#include "source.hpp"
-#include "themes.hpp"
-#include "track_queue.hpp"
-#include "ui_events.hpp"
-#include "ui_fsm.hpp"
-#include "widget_top_bar.hpp"
-#include "widgets/lv_label.h"
-
-[[maybe_unused]] static constexpr char kTag[] = "browser";
-
-static constexpr int kMaxPages = 4;
-static constexpr int kPageBuffer = 6;
-
-namespace ui {
-namespace screens {
-
-static void item_click_cb(lv_event_t* ev) {
-  if (ev->user_data == NULL) {
-    return;
-  }
-  TrackBrowser* instance = reinterpret_cast<TrackBrowser*>(ev->user_data);
-  instance->OnItemClicked(ev);
-}
-
-static void item_select_cb(lv_event_t* ev) {
-  if (ev->user_data == NULL) {
-    return;
-  }
-  TrackBrowser* instance = reinterpret_cast<TrackBrowser*>(ev->user_data);
-  instance->OnItemSelected(ev);
-}
-
-TrackBrowser::TrackBrowser(
-    models::TopBar& top_bar_model,
-    audio::TrackQueue& queue,
-    std::weak_ptr<database::Database> db,
-    const std::pmr::vector<std::pmr::string>& crumbs,
-    std::future<database::Result<database::IndexRecord>*>&& initial_page)
-    : queue_(queue),
-      db_(db),
-      play_button_(nullptr),
-      enqueue_button_(nullptr),
-      list_(nullptr),
-      loading_indicator_(nullptr),
-      breadcrumbs_(crumbs),
-      loading_pos_(END),
-      loading_page_(move(initial_page)),
-      initial_page_(),
-      current_pages_() {
-  lv_obj_set_layout(content_, LV_LAYOUT_FLEX);
-  lv_obj_set_flex_flow(content_, LV_FLEX_FLOW_COLUMN);
-  lv_obj_set_flex_align(content_, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER,
-                        LV_FLEX_ALIGN_CENTER);
-
-  widgets::TopBar::Configuration config{
-      .show_back_button = true,
-      .title = breadcrumbs_[0],
-  };
-  auto top_bar = CreateTopBar(content_, config, top_bar_model);
-  back_button_ = top_bar->button();
-
-  lv_obj_t* scrollable = lv_obj_create(content_);
-  lv_obj_set_width(scrollable, lv_pct(100));
-  lv_obj_set_flex_grow(scrollable, 1);
-  lv_obj_set_layout(scrollable, LV_LAYOUT_FLEX);
-  lv_obj_set_flex_flow(scrollable, LV_FLEX_FLOW_COLUMN);
-  lv_obj_set_flex_align(scrollable, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_START,
-                        LV_FLEX_ALIGN_START);
-
-  if (crumbs.size() > 1) {
-    lv_obj_t* header = lv_obj_create(scrollable);
-    lv_obj_set_size(header, lv_pct(100), LV_SIZE_CONTENT);
-    lv_obj_set_layout(header, LV_LAYOUT_FLEX);
-    lv_obj_set_flex_flow(header, LV_FLEX_FLOW_COLUMN);
-    lv_obj_set_flex_align(header, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_START,
-                          LV_FLEX_ALIGN_START);
-
-    lv_obj_set_style_pad_left(header, 4, LV_PART_MAIN);
-    lv_obj_set_style_pad_right(header, 4, LV_PART_MAIN);
-
-    lv_obj_t* spacer = lv_obj_create(header);
-    lv_obj_set_size(spacer, 1, 2);
-
-    for (size_t i = 1; i < crumbs.size(); i++) {
-      lv_obj_t* crumb = lv_label_create(header);
-      lv_label_set_text(crumb, crumbs[i].c_str());
-
-      spacer = lv_obj_create(header);
-      lv_obj_set_size(spacer, 1, 2);
-    }
-
-    spacer = lv_obj_create(header);
-    lv_obj_set_size(spacer, 1, 2);
-
-    lv_obj_t* buttons_container = lv_obj_create(header);
-    lv_obj_set_width(buttons_container, lv_pct(100));
-    lv_obj_set_height(buttons_container, LV_SIZE_CONTENT);
-    lv_obj_set_layout(buttons_container, LV_LAYOUT_FLEX);
-    lv_obj_set_flex_flow(buttons_container, LV_FLEX_FLOW_ROW);
-    lv_obj_set_flex_align(buttons_container, LV_FLEX_ALIGN_END,
-                          LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
-
-    lv_obj_t* label;
-
-    play_button_ = lv_btn_create(buttons_container);
-    label = lv_label_create(play_button_);
-    lv_label_set_text(label, "Play all");
-    lv_group_add_obj(group_, play_button_);
-    themes::Theme::instance()->ApplyStyle(play_button_,
-                                          themes::Style::kButtonPrimary);
-
-    lv_bind(play_button_, LV_EVENT_CLICKED, [&](lv_obj_t*) {
-      if (!initial_page_) {
-        return;
-      }
-      queue_.Clear();
-      queue_.IncludeNext(playlist::CreateSourceFromResults(db_, initial_page_));
-      events::Ui().Dispatch(internal::ShowNowPlaying{});
-    });
-
-    if (queue_.GetCurrent()) {
-      spacer = lv_obj_create(buttons_container);
-      lv_obj_set_size(spacer, 4, 1);
-
-      enqueue_button_ = lv_btn_create(buttons_container);
-      label = lv_label_create(enqueue_button_);
-      lv_label_set_text(label, "Enqueue");
-      lv_group_add_obj(group_, enqueue_button_);
-      themes::Theme::instance()->ApplyStyle(enqueue_button_,
-                                            themes::Style::kButtonPrimary);
-
-      lv_bind(enqueue_button_, LV_EVENT_CLICKED, [&](lv_obj_t*) {
-        if (!initial_page_) {
-          return;
-        }
-        queue_.IncludeNext(
-            playlist::CreateSourceFromResults(db_, initial_page_));
-      });
-    }
-
-    lv_obj_set_style_border_width(header, 1, LV_PART_MAIN);
-    lv_obj_set_style_border_color(header, lv_color_black(), LV_PART_MAIN);
-    lv_obj_set_style_border_side(header, LV_BORDER_SIDE_BOTTOM, LV_PART_MAIN);
-
-    spacer = lv_obj_create(header);
-    lv_obj_set_size(spacer, 1, 4);
-
-    lv_obj_set_style_border_width(header, 1, LV_PART_MAIN);
-    lv_obj_set_style_border_color(
-        header, lv_palette_lighten(LV_PALETTE_GREY, 3), LV_PART_MAIN);
-  }
-
-  list_ = lv_list_create(scrollable);
-  lv_obj_set_size(list_, lv_pct(100), LV_SIZE_CONTENT);
-
-  // The default scrollbar is deceptive because we load in items progressively.
-  // TODO/FIXME: this doesn't actually turn off the scrollbar, it seems.
-  lv_obj_set_scrollbar_mode(content_, LV_SCROLLBAR_MODE_OFF);
-  // Wrapping behaves in surprising ways, again due to progressing loading.
-  lv_group_set_wrap(group_, false);
-}
-
-auto TrackBrowser::Tick() -> void {
-  if (!loading_page_) {
-    return;
-  }
-  if (!loading_page_->valid()) {
-    // TODO(jacqueline): error case.
-    return;
-  }
-  if (loading_page_->wait_for(std::chrono::seconds(0)) ==
-      std::future_status::ready) {
-    std::shared_ptr<database::Result<database::IndexRecord>> result{
-        loading_page_->get()};
-    AddResults(loading_pos_.value_or(END), result);
-
-    loading_page_.reset();
-    loading_pos_.reset();
-  }
-}
-
-auto TrackBrowser::OnItemSelected(lv_event_t* ev) -> void {
-  auto index = GetItemIndex(lv_event_get_target(ev));
-  if (!index) {
-    return;
-  }
-  if (index < kPageBuffer) {
-    FetchNewPage(START);
-    return;
-  }
-  if (index > GetNumRecords() - kPageBuffer) {
-    FetchNewPage(END);
-    return;
-  }
-}
-
-auto TrackBrowser::OnItemClicked(lv_event_t* ev) -> void {
-  auto res = GetItemIndex(lv_event_get_target(ev));
-  if (!res) {
-    return;
-  }
-
-  auto index = *res;
-  for (const auto& page : current_pages_) {
-    for (std::size_t i = 0; i < page->values().size(); i++) {
-      if (index == 0) {
-        auto text = page->values()[i]->text();
-        auto crumbs = breadcrumbs_;
-        crumbs.push_back(text.value());
-        events::Ui().Dispatch(internal::RecordSelected{
-            .show_menu = ev->code == LV_EVENT_LONG_PRESSED,
-            .new_crumbs = crumbs,
-            .initial_page = initial_page_,
-            .page = page,
-            .record = i,
-        });
-        return;
-      }
-      index--;
-    }
-  }
-}
-
-auto TrackBrowser::AddLoadingIndictor(Position pos) -> void {
-  if (loading_indicator_) {
-    return;
-  }
-  loading_indicator_ = lv_list_add_text(list_, "Loading...");
-  if (pos == START) {
-    lv_obj_move_to_index(loading_indicator_, 0);
-  }
-}
-
-auto TrackBrowser::AddResults(
-    Position pos,
-    std::shared_ptr<database::Result<database::IndexRecord>> results) -> void {
-  if (loading_indicator_ != nullptr) {
-    lv_obj_del(loading_indicator_);
-    loading_indicator_ = nullptr;
-  }
-
-  if (initial_page_ == nullptr) {
-    initial_page_ = results;
-  }
-
-  auto fn = [&](const std::shared_ptr<database::IndexRecord>& record) {
-    auto text = record->text();
-    if (!text) {
-      // TODO(jacqueline): Display category-specific text.
-      text = "[ no data ]";
-    }
-    lv_obj_t* item = lv_list_add_btn(list_, NULL, text->c_str());
-    lv_label_set_long_mode(lv_obj_get_child(item, -1), LV_LABEL_LONG_DOT);
-    lv_obj_add_event_cb(item, item_click_cb, LV_EVENT_CLICKED, this);
-    lv_obj_add_event_cb(item, item_click_cb, LV_EVENT_LONG_PRESSED, this);
-    lv_obj_add_event_cb(item, item_select_cb, LV_EVENT_FOCUSED, this);
-
-    if (pos == START) {
-      lv_obj_move_to_index(item, 0);
-    }
-  };
-
-  lv_obj_t* focused = lv_group_get_focused(group_);
-
-  // Adding objects at the start of the list will artificially scroll the list
-  // up. Scroll it down by the height we're adding so that the user doesn't
-  // notice any jank.
-  if (pos == START) {
-    int num_to_add = results->values().size();
-    // Assuming that all items are the same height, this item's y pos should be
-    // exactly the height of the new items.
-    lv_obj_t* representative_item = lv_obj_get_child(list_, num_to_add);
-    if (representative_item != nullptr) {
-      int scroll_adjustment = lv_obj_get_y(representative_item);
-      lv_obj_scroll_by(list_, 0, -scroll_adjustment, LV_ANIM_OFF);
-    }
-  }
-
-  switch (pos) {
-    case START:
-      std::for_each(results->values().rbegin(), results->values().rend(), fn);
-      current_pages_.push_front(results);
-      break;
-    case END:
-      std::for_each(results->values().begin(), results->values().end(), fn);
-      current_pages_.push_back(results);
-      break;
-  }
-
-  lv_group_remove_all_objs(group_);
-  lv_group_add_obj(group_, back_button_);
-  if (play_button_) {
-    lv_group_add_obj(group_, play_button_);
-  }
-  if (enqueue_button_) {
-    lv_group_add_obj(group_, enqueue_button_);
-  }
-  int num_children = lv_obj_get_child_cnt(list_);
-  for (int i = 0; i < num_children; i++) {
-    lv_group_add_obj(group_, lv_obj_get_child(list_, i));
-  }
-  lv_group_focus_obj(focused);
-}
-
-auto TrackBrowser::DropPage(Position pos) -> void {
-  if (pos == START) {
-    // Removing objects from the start of the list will artificially scroll the
-    // list down. Scroll it up by the height we're removing so that the user
-    // doesn't notice any jank.
-    int num_to_remove = current_pages_.front()->values().size();
-    lv_obj_t* new_top_obj = lv_obj_get_child(list_, num_to_remove);
-    if (new_top_obj != nullptr) {
-      int scroll_adjustment = lv_obj_get_y(new_top_obj);
-      lv_obj_scroll_by(list_, 0, scroll_adjustment, LV_ANIM_OFF);
-    }
-
-    for (int i = 0; i < current_pages_.front()->values().size(); i++) {
-      lv_obj_t* item = lv_obj_get_child(list_, 0);
-      if (item == NULL) {
-        continue;
-      }
-      lv_obj_del(item);
-    }
-    current_pages_.pop_front();
-  } else if (pos == END) {
-    for (int i = 0; i < current_pages_.back()->values().size(); i++) {
-      lv_obj_t* item = lv_obj_get_child(list_, lv_obj_get_child_cnt(list_) - 1);
-      if (item == NULL) {
-        continue;
-      }
-      lv_group_remove_obj(item);
-      lv_obj_del(item);
-    }
-    current_pages_.pop_back();
-  }
-}
-
-auto TrackBrowser::FetchNewPage(Position pos) -> void {
-  if (loading_page_) {
-    return;
-  }
-
-  std::optional<database::Continuation> cont;
-  switch (pos) {
-    case START:
-      cont = current_pages_.front()->prev_page();
-      break;
-    case END:
-      cont = current_pages_.back()->next_page();
-      break;
-  }
-  if (!cont) {
-    return;
-  }
-
-  auto db = db_.lock();
-  if (!db) {
-    return;
-  }
-
-  // If we already have a complete set of pages, drop the page that's furthest
-  // away.
-  if (current_pages_.size() >= kMaxPages) {
-    switch (pos) {
-      case START:
-        DropPage(END);
-        break;
-      case END:
-        DropPage(START);
-        break;
-    }
-  }
-
-  loading_pos_ = pos;
-  loading_page_ = db->GetPage<database::IndexRecord>(&cont.value());
-}
-
-auto TrackBrowser::GetNumRecords() -> std::size_t {
-  return lv_obj_get_child_cnt(list_) - (loading_indicator_ != nullptr ? 1 : 0);
-}
-
-auto TrackBrowser::GetItemIndex(lv_obj_t* obj) -> std::optional<std::size_t> {
-  std::size_t child_count = lv_obj_get_child_cnt(list_);
-  std::size_t index = 0;
-  for (int i = 0; i < child_count; i++) {
-    lv_obj_t* child = lv_obj_get_child(list_, i);
-    if (child == loading_indicator_) {
-      continue;
-    }
-    if (child == obj) {
-      return index;
-    }
-    index++;
-  }
-  return {};
-}
-
-}  // namespace screens
-}  // namespace ui

src/ui/ui_fsm.cpp

@@ -30,7 +30,6 @@
 #include "event_queue.hpp"
 #include "gpios.hpp"
 #include "lvgl_task.hpp"
-#include "modal_add_to_queue.hpp"
 #include "modal_confirm.hpp"
 #include "modal_progress.hpp"
 #include "model_playback.hpp"
@@ -39,11 +38,8 @@
 #include "relative_wheel.hpp"
 #include "screen.hpp"
 #include "screen_lua.hpp"
-#include "screen_onboarding.hpp"
-#include "screen_playing.hpp"
 #include "screen_settings.hpp"
 #include "screen_splash.hpp"
-#include "screen_track_browser.hpp"
 #include "source.hpp"
 #include "spiffs.hpp"
 #include "storage.hpp"
@@ -51,15 +47,12 @@
 #include "touchwheel.hpp"
 #include "track_queue.hpp"
 #include "ui_events.hpp"
-#include "widget_top_bar.hpp"
 #include "widgets/lv_label.h"
 
 namespace ui {
 
 [[maybe_unused]] static constexpr char kTag[] = "ui_fsm";
 
-static const std::size_t kRecordsPerPage = 15;
-
 std::unique_ptr<UiTask> UiState::sTask;
 std::shared_ptr<system_fsm::ServiceLocator> UiState::sServices;
 std::unique_ptr<drivers::Display> UiState::sDisplay;
@@ -116,27 +109,17 @@ void UiState::react(const system_fsm::BatteryStateChanged& ev) {
   sTopBarModel.battery_state.set(ev.new_state);
 }
 
-void UiState::react(const audio::PlaybackStarted&) {
+void UiState::react(const audio::PlaybackStarted&) {}
-  sPlaybackModel.is_playing.set(true);
-}
 
-void UiState::react(const audio::PlaybackFinished&) {
+void UiState::react(const audio::PlaybackFinished&) {}
-  sPlaybackModel.is_playing.set(false);
-}
 
-void UiState::react(const audio::PlaybackUpdate& ev) {
+void UiState::react(const audio::PlaybackUpdate& ev) {}
-  sPlaybackModel.current_track_duration.set(ev.seconds_total);
-  sPlaybackModel.current_track_position.set(ev.seconds_elapsed);
-}
 
 void UiState::react(const audio::QueueUpdate&) {
   auto& queue = sServices->track_queue();
   bool had_queue = sPlaybackModel.current_track.get().has_value();
   sPlaybackModel.current_track.set(queue.GetCurrent());
   sPlaybackModel.upcoming_tracks.set(queue.GetUpcoming(10));
-  if (!had_queue) {
-    transit<states::Playing>();
-  }
 }
 
 void UiState::react(const internal::ControlSchemeChanged&) {
@@ -192,8 +175,13 @@ void Lua::entry() {
     battery_charging_ = std::make_shared<lua::Property>(bat.is_charging);
 
     bluetooth_en_ = std::make_shared<lua::Property>(false);
+
+    queue_position_ = std::make_shared<lua::Property>(0);
+    queue_size_ = std::make_shared<lua::Property>(0);
+
     playback_playing_ = std::make_shared<lua::Property>(false);
     playback_track_ = std::make_shared<lua::Property>();
+    playback_position_ = std::make_shared<lua::Property>();
 
     sLua.reset(lua::LuaThread::Start(*sServices, sCurrentScreen->content()));
     sLua->bridge().AddPropertyModule("power",
@@ -211,7 +199,12 @@ void Lua::entry() {
                                      {
                                          {"playing", playback_playing_},
                                          {"track", playback_track_},
+                                         {"position", playback_position_},
                                      });
+    sLua->bridge().AddPropertyModule("queue", {
+                                                  {"position", queue_position_},
+                                                  {"size", queue_size_},
+                                              });
     sLua->bridge().AddPropertyModule(
         "backstack",
         {
@@ -233,7 +226,7 @@ auto Lua::PushLuaScreen(lua_State* s) -> int {
   auto new_screen = std::make_shared<screens::Lua>();
 
   // Tell lvgl about the new roots.
-  luavgl_set_root(s, new_screen->root());
+  luavgl_set_root(s, new_screen->content());
   lv_group_set_default(new_screen->group());
 
   // Call the constructor for this screen.
@@ -252,7 +245,7 @@ auto Lua::PushLuaScreen(lua_State* s) -> int {
 
 auto Lua::PopLuaScreen(lua_State* s) -> int {
   PopScreen();
-  luavgl_set_root(s, sCurrentScreen->root());
+  luavgl_set_root(s, sCurrentScreen->content());
   lv_group_set_default(sCurrentScreen->group());
   return 0;
 }
@@ -265,25 +258,6 @@ void Lua::react(const OnLuaError& err) {
   ESP_LOGE("lua", "%s", err.message.c_str());
 }
 
-void Lua::react(const internal::IndexSelected& ev) {
-  auto db = sServices->database().lock();
-  if (!db) {
-    return;
-  }
-
-  ESP_LOGI(kTag, "selected index %u", ev.id);
-  auto query = db->GetTracksByIndex(ev.id, kRecordsPerPage);
-  std::pmr::vector<std::pmr::string> crumbs = {""};
-  PushScreen(std::make_shared<screens::TrackBrowser>(
-      sTopBarModel, sServices->track_queue(), sServices->database(), crumbs,
-      std::move(query)));
-  transit<Browse>();
-}
-
-void Lua::react(const internal::ShowNowPlaying&) {
-  transit<Playing>();
-}
-
 void Lua::react(const internal::ShowSettingsPage& ev) {
   PushScreen(std::shared_ptr<Screen>(new screens::Settings(sTopBarModel)));
   transit<Browse>();
@@ -294,71 +268,27 @@ void Lua::react(const system_fsm::BatteryStateChanged& ev) {
   battery_mv_->Update(static_cast<int>(ev.new_state.millivolts));
 }
 
-void Lua::react(const audio::PlaybackStarted&) {
+void Lua::react(const audio::QueueUpdate&) {
-  playback_playing_->Update(true);
+  auto& queue = sServices->track_queue();
+  queue_size_->Update(static_cast<int>(queue.Size()));
+  queue_position_->Update(static_cast<int>(queue.Position()));
 }
 
-void Lua::react(const audio::PlaybackFinished&) {
+void Lua::react(const audio::PlaybackStarted& ev) {
-  playback_playing_->Update(false);
+  playback_playing_->Update(true);
 }
 
-void Onboarding::entry() {
+void Lua::react(const audio::PlaybackUpdate& ev) {
-  progress_ = 0;
+  playback_track_->Update(*ev.track);
-  has_formatted_ = false;
+  playback_position_->Update(static_cast<int>(ev.seconds_elapsed));
-  sCurrentScreen.reset(new screens::onboarding::LinkToManual());
 }
 
-void Onboarding::react(const internal::OnboardingNavigate& ev) {
+void Lua::react(const audio::PlaybackFinished&) {
-  int dir = ev.forwards ? 1 : -1;
+  playback_playing_->Update(false);
-  progress_ += dir;
-
-  for (;;) {
-    if (progress_ == 0) {
-      sCurrentScreen.reset(new screens::onboarding::LinkToManual());
-      return;
-    } else if (progress_ == 1) {
-      sCurrentScreen.reset(new screens::onboarding::Controls());
-      return;
-    } else if (progress_ == 2) {
-      if (sServices->sd() == drivers::SdState::kNotPresent) {
-        sCurrentScreen.reset(new screens::onboarding::MissingSdCard());
-        return;
-      } else {
-        progress_ += dir;
-      }
-    } else if (progress_ == 3) {
-      if (sServices->sd() == drivers::SdState::kNotFormatted) {
-        has_formatted_ = true;
-        sCurrentScreen.reset(new screens::onboarding::FormatSdCard());
-        return;
-      } else {
-        progress_ += dir;
-      }
-    } else if (progress_ == 4) {
-      if (has_formatted_) {
-        // If we formatted the SD card during this onboarding flow, then there
-        // is no music that needs indexing.
-        progress_ += dir;
-      } else {
-        sCurrentScreen.reset(new screens::onboarding::InitDatabase());
-        return;
-      }
-    } else {
-      // We finished onboarding! Ensure this flow doesn't appear again.
-      sServices->nvs().HasShownOnboarding(true);
-
-      transit<Browse>();
-      return;
-    }
-  }
 }
 
 void Browse::entry() {}
 
-void Browse::react(const internal::ShowNowPlaying& ev) {
-  transit<Playing>();
-}
-
 void Browse::react(const internal::ShowSettingsPage& ev) {
   std::shared_ptr<Screen> screen;
   std::shared_ptr<screens::Bluetooth> bt_screen;
@@ -397,47 +327,6 @@ void Browse::react(const internal::ShowSettingsPage& ev) {
   }
 }
 
-void Browse::react(const internal::RecordSelected& ev) {
-  auto db = sServices->database().lock();
-  if (!db) {
-    return;
-  }
-
-  auto& queue = sServices->track_queue();
-  auto record = ev.page->values().at(ev.record);
-  if (record->track()) {
-    ESP_LOGI(kTag, "selected track '%s'", record->text()->c_str());
-    auto source = std::make_shared<playlist::IndexRecordSource>(
-        sServices->database(), ev.initial_page, 0, ev.page, ev.record);
-    if (ev.show_menu) {
-      sCurrentModal.reset(
-          new modals::AddToQueue(sCurrentScreen.get(), queue, source));
-    } else {
-      queue.Clear();
-      queue.AddNext(source);
-      transit<Playing>();
-    }
-  } else {
-    ESP_LOGI(kTag, "selected record '%s'", record->text()->c_str());
-    auto cont = record->Expand(kRecordsPerPage);
-    if (!cont) {
-      return;
-    }
-    auto query = db->GetPage<database::IndexRecord>(&cont.value());
-    if (ev.show_menu) {
-      std::shared_ptr<database::Result<database::IndexRecord>> res{query.get()};
-      auto source = playlist::CreateSourceFromResults(db, res);
-      sCurrentModal.reset(
-          new modals::AddToQueue(sCurrentScreen.get(), queue, source, true));
-    } else {
-      std::pmr::string title = record->text().value_or("");
-      PushScreen(std::make_shared<screens::TrackBrowser>(
-          sTopBarModel, sServices->track_queue(), sServices->database(),
-          ev.new_crumbs, std::move(query)));
-    }
-  }
-}
-
 void Browse::react(const internal::BackPressed& ev) {
   if (PopScreen() == 0) {
     transit<Lua>();
@@ -455,28 +344,6 @@ void Browse::react(const internal::ReindexDatabase& ev) {
   transit<Indexing>();
 }
 
-static std::shared_ptr<screens::Playing> sPlayingScreen;
-
-void Playing::entry() {
-  ESP_LOGI(kTag, "push playing screen");
-  sPlayingScreen.reset(new screens::Playing(sTopBarModel, sPlaybackModel,
-                                            sServices->database(),
-                                            sServices->track_queue()));
-  PushScreen(sPlayingScreen);
-}
-
-void Playing::exit() {
-  sPlayingScreen.reset();
-}
-
-void Playing::react(const internal::BackPressed& ev) {
-  if (PopScreen() == 0) {
-    transit<Lua>();
-  } else {
-    transit<Browse>();
-  }
-}
-
 static std::shared_ptr<modals::Progress> sIndexProgress;
 
 void Indexing::entry() {

src/ui/widget_top_bar.cpp

@@ -19,16 +19,6 @@
 #include "widgets/lv_img.h"
 #include "widgets/lv_label.h"
 
-LV_IMG_DECLARE(kIconBluetooth);
-LV_IMG_DECLARE(kIconPlay);
-LV_IMG_DECLARE(kIconPause);
-LV_IMG_DECLARE(kIconBatteryEmpty);
-LV_IMG_DECLARE(kIconBattery20);
-LV_IMG_DECLARE(kIconBattery40);
-LV_IMG_DECLARE(kIconBattery60);
-LV_IMG_DECLARE(kIconBattery80);
-LV_IMG_DECLARE(kIconBatteryFull);
-
 namespace ui {
 namespace widgets {
 
@@ -64,46 +54,6 @@ TopBar::TopBar(lv_obj_t* parent,
   lv_label_set_text(title_, config.title.c_str());
   lv_label_set_long_mode(title_, LV_LABEL_LONG_DOT);
 
-  lv_obj_t* playback = lv_img_create(container_);
-
-  bindings_.push_back(model.is_playing.onChangedAndNow([=](bool is_playing) {
-    lv_img_set_src(playback, is_playing ? &kIconPlay : &kIconPause);
-  }));
-  bindings_.push_back(model.current_track.onChangedAndNow(
-      [=](const std::optional<database::TrackId>& id) {
-        if (id) {
-          lv_obj_clear_flag(playback, LV_OBJ_FLAG_HIDDEN);
-        } else {
-          lv_obj_add_flag(playback, LV_OBJ_FLAG_HIDDEN);
-        }
-      }));
-
-  lv_obj_t* battery = lv_img_create(container_);
-  lv_obj_t* charging = lv_label_create(container_);
-
-  bindings_.push_back(model.battery_state.onChangedAndNow(
-      [=](const battery::Battery::BatteryState& state) {
-        if (state.is_charging) {
-          lv_label_set_text(charging, "+");
-        } else {
-          lv_label_set_text(charging, "");
-        }
-
-        if (state.percent >= 95) {
-          lv_img_set_src(battery, &kIconBatteryFull);
-        } else if (state.percent >= 75) {
-          lv_img_set_src(battery, &kIconBattery80);
-        } else if (state.percent >= 55) {
-          lv_img_set_src(battery, &kIconBattery60);
-        } else if (state.percent >= 35) {
-          lv_img_set_src(battery, &kIconBattery40);
-        } else if (state.percent >= 15) {
-          lv_img_set_src(battery, &kIconBattery20);
-        } else {
-          lv_img_set_src(battery, &kIconBatteryEmpty);
-        }
-      }));
-
   themes::Theme::instance()->ApplyStyle(container_, themes::Style::kTopBar);
 }