[lvgl] Fix compile error when using encoder with buttons only. (#7203)

esphome/components/lvgl/__init__.py

@@ -23,9 +23,9 @@ from esphome.helpers import write_file_if_changed
 from . import defines as df, helpers, lv_validation as lvalid
 from .automation import disp_update, update_to_code
 from .defines import CONF_SKIP
+from .encoders import ENCODERS_CONFIG, encoders_to_code
 from .lv_validation import lv_bool, lv_images_used
 from .lvcode import LvContext, LvglComponent
-from .rotary_encoders import ROTARY_ENCODER_CONFIG, rotary_encoders_to_code
 from .schemas import (
     DISP_BG_SCHEMA,
     FLEX_OBJ_SCHEMA,
@@ -256,7 +256,7 @@ async def to_code(config):
 
     async with LvContext(lv_component):
         await touchscreens_to_code(lv_component, config)
-        await rotary_encoders_to_code(lv_component, config)
+        await encoders_to_code(lv_component, config)
         await theme_to_code(config)
         await styles_to_code(config)
         await set_obj_properties(lv_scr_act, config)
@@ -336,7 +336,7 @@ CONFIG_SCHEMA = (
                 {cv.Optional(name): obj_schema(w) for name, w in WIDGET_TYPES.items()}
             ),
             cv.GenerateID(df.CONF_TOUCHSCREENS): touchscreen_schema,
-            cv.GenerateID(df.CONF_ROTARY_ENCODERS): ROTARY_ENCODER_CONFIG,
+            cv.GenerateID(df.CONF_ENCODERS): ENCODERS_CONFIG,
         }
     )
     .extend(DISP_BG_SCHEMA)

esphome/components/lvgl/defines.py

@@ -388,6 +388,7 @@ CONF_DEFAULT = "default"
 CONF_DEFAULT_FONT = "default_font"
 CONF_DIR = "dir"
 CONF_DISPLAYS = "displays"
+CONF_ENCODERS = "encoders"
 CONF_END_ANGLE = "end_angle"
 CONF_END_VALUE = "end_value"
 CONF_ENTER_BUTTON = "enter_button"
@@ -441,7 +442,6 @@ CONF_RECOLOR = "recolor"
 CONF_RIGHT_BUTTON = "right_button"
 CONF_ROLLOVER = "rollover"
 CONF_ROOT_BACK_BTN = "root_back_btn"
-CONF_ROTARY_ENCODERS = "rotary_encoders"
 CONF_ROWS = "rows"
 CONF_SCALE_LINES = "scale_lines"
 CONF_SCROLLBAR_MODE = "scrollbar_mode"

esphome/components/lvgl/encoders.py

@@ -5,25 +5,26 @@ import esphome.config_validation as cv
 from esphome.const import CONF_GROUP, CONF_ID, CONF_SENSOR
 
 from .defines import (
+    CONF_ENCODERS,
     CONF_ENTER_BUTTON,
     CONF_LEFT_BUTTON,
     CONF_LONG_PRESS_REPEAT_TIME,
     CONF_LONG_PRESS_TIME,
     CONF_RIGHT_BUTTON,
-    CONF_ROTARY_ENCODERS,
 )
-from .helpers import lvgl_components_required
+from .helpers import lvgl_components_required, requires_component
-from .lvcode import lv, lv_add, lv_expr
+from .lvcode import lv, lv_add, lv_assign, lv_expr, lv_Pvariable
 from .schemas import ENCODER_SCHEMA
-from .types import lv_indev_type_t
+from .types import lv_group_t, lv_indev_type_t
-from .widgets import add_group
 
-ROTARY_ENCODER_CONFIG = cv.ensure_list(
+ENCODERS_CONFIG = cv.ensure_list(
     ENCODER_SCHEMA.extend(
         {
             cv.Required(CONF_ENTER_BUTTON): cv.use_id(BinarySensor),
             cv.Required(CONF_SENSOR): cv.Any(
-                cv.use_id(RotaryEncoderSensor),
+                cv.All(
+                    cv.use_id(RotaryEncoderSensor), requires_component("rotary_encoder")
+                ),
                 cv.Schema(
                     {
                         cv.Required(CONF_LEFT_BUTTON): cv.use_id(BinarySensor),
@@ -36,10 +37,9 @@ ROTARY_ENCODER_CONFIG = cv.ensure_list(
 )
 
 
-async def rotary_encoders_to_code(var, config):
+async def encoders_to_code(var, config):
-    for enc_conf in config.get(CONF_ROTARY_ENCODERS, ()):
+    for enc_conf in config.get(CONF_ENCODERS, ()):
         lvgl_components_required.add("KEY_LISTENER")
-        lvgl_components_required.add("ROTARY_ENCODER")
         lpt = enc_conf[CONF_LONG_PRESS_TIME].total_milliseconds
         lprt = enc_conf[CONF_LONG_PRESS_REPEAT_TIME].total_milliseconds
         listener = cg.new_Pvariable(
@@ -57,7 +57,9 @@ async def rotary_encoders_to_code(var, config):
                 lv_add(listener.set_sensor(sensor_config))
         b_sensor = await cg.get_variable(enc_conf[CONF_ENTER_BUTTON])
         cg.add(listener.set_enter_button(b_sensor))
-        if group := add_group(enc_conf.get(CONF_GROUP)):
+        if group := enc_conf.get(CONF_GROUP):
+            group = lv_Pvariable(lv_group_t, group)
+            lv_assign(group, lv_expr.group_create())
             lv.indev_set_group(lv_expr.indev_drv_register(listener.get_drv()), group)
         else:
             lv.indev_drv_register(listener.get_drv())

esphome/components/lvgl/lvgl_esphome.cpp

@@ -127,7 +127,7 @@ void LVTouchListener::update(const touchscreen::TouchPoints_t &tpoints) {
 }
 #endif  // USE_LVGL_TOUCHSCREEN
 
-#ifdef USE_LVGL_ROTARY_ENCODER
+#ifdef USE_LVGL_KEY_LISTENER
 LVEncoderListener::LVEncoderListener(lv_indev_type_t type, uint16_t lpt, uint16_t lprt) {
   lv_indev_drv_init(&this->drv_);
   this->drv_.type = type;
@@ -143,7 +143,7 @@ LVEncoderListener::LVEncoderListener(lv_indev_type_t type, uint16_t lpt, uint16_
     data->continue_reading = false;
   };
 }
-#endif  // USE_LVGL_ROTARY_ENCODER
+#endif  // USE_LVGL_KEY_LISTENER
 
 #ifdef USE_LVGL_BUTTONMATRIX
 void LvButtonMatrixType::set_obj(lv_obj_t *lv_obj) {

esphome/components/lvgl/lvgl_esphome.h

@@ -1,6 +1,13 @@
 #pragma once
 #include "esphome/core/defines.h"
 
+#ifdef USE_LVGL_BINARY_SENSOR
+#include "esphome/components/binary_sensor/binary_sensor.h"
+#endif  // USE_LVGL_BINARY_SENSOR
+#ifdef USE_LVGL_ROTARY_ENCODER
+#include "esphome/components/rotary_encoder/rotary_encoder.h"
+#endif  // USE_LVGL_ROTARY_ENCODER
+
 // required for clang-tidy
 #ifndef LV_CONF_H
 #define LV_CONF_SKIP 1  // NOLINT
@@ -12,12 +19,7 @@
 #include "esphome/core/log.h"
 #include <lvgl.h>
 #include <vector>
-
+#include <map>
-#ifdef USE_LVGL_ROTARY_ENCODER
-#include "esphome/components/binary_sensor/binary_sensor.h"
-#include "esphome/components/rotary_encoder/rotary_encoder.h"
-#endif  // USE_LVGL_ROTARY_ENCODER
-
 #ifdef USE_LVGL_IMAGE
 #include "esphome/components/image/image.h"
 #endif  // USE_LVGL_IMAGE
@@ -202,7 +204,7 @@ class LVTouchListener : public touchscreen::TouchListener, public Parented<LvglC
 };
 #endif  // USE_LVGL_TOUCHSCREEN
 
-#ifdef USE_LVGL_ROTARY_ENCODER
+#ifdef USE_LVGL_KEY_LISTENER
 class LVEncoderListener : public Parented<LvglComponent> {
  public:
   LVEncoderListener(lv_indev_type_t type, uint16_t lpt, uint16_t lprt);
@@ -218,9 +220,11 @@ class LVEncoderListener : public Parented<LvglComponent> {
     enter_button->add_on_state_callback([this](bool state) { this->event(LV_KEY_ENTER, state); });
   }
 
+#ifdef USE_LVGL_ROTARY_ENCODER
   void set_sensor(rotary_encoder::RotaryEncoderSensor *sensor) {
     sensor->register_listener([this](int32_t count) { this->set_count(count); });
   }
+#endif  // USE_LVGL_ROTARY_ENCODER
 
   void event(int key, bool pressed) {
     if (!this->parent_->is_paused()) {
@@ -243,7 +247,8 @@ class LVEncoderListener : public Parented<LvglComponent> {
   int32_t last_count_{};
   int key_{};
 };
-#endif  // USE_LVGL_ROTARY_ENCODER
+#endif  //  USE_LVGL_KEY_LISTENER
+
 #ifdef USE_LVGL_BUTTONMATRIX
 class LvButtonMatrixType : public key_provider::KeyProvider, public LvCompound {
  public:

esphome/components/lvgl/schemas.py

@@ -16,9 +16,9 @@ from esphome.schema_extractors import SCHEMA_EXTRACT
 
 from . import defines as df, lv_validation as lvalid, types as ty
 from .helpers import add_lv_use, requires_component, validate_printf
-from .lv_validation import id_name, lv_color, lv_font, lv_image
+from .lv_validation import lv_color, lv_font, lv_image
 from .lvcode import LvglComponent
-from .types import WidgetType
+from .types import WidgetType, lv_group_t
 
 # this will be populated later, in __init__.py to avoid circular imports.
 WIDGET_TYPES: dict = {}
@@ -61,7 +61,7 @@ ENCODER_SCHEMA = cv.Schema(
         cv.GenerateID(): cv.All(
             cv.declare_id(ty.LVEncoderListener), requires_component("binary_sensor")
         ),
-        cv.Optional(CONF_GROUP): lvalid.id_name,
+        cv.Optional(CONF_GROUP): cv.declare_id(lv_group_t),
         cv.Optional(df.CONF_LONG_PRESS_TIME, default="400ms"): PRESS_TIME,
         cv.Optional(df.CONF_LONG_PRESS_REPEAT_TIME, default="100ms"): PRESS_TIME,
     }
@@ -249,7 +249,7 @@ def obj_schema(widget_type: WidgetType):
             cv.Schema(
                 {
                     cv.Optional(CONF_STATE): SET_STATE_SCHEMA,
-                    cv.Optional(CONF_GROUP): id_name,
+                    cv.Optional(CONF_GROUP): cv.use_id(lv_group_t),
                 }
             )
         )

esphome/components/lvgl/widgets/__init__.py

@@ -6,7 +6,7 @@ from esphome.config_validation import Invalid
 from esphome.const import CONF_GROUP, CONF_ID, CONF_STATE, CONF_TYPE
 from esphome.core import ID, TimePeriod
 from esphome.coroutine import FakeAwaitable
-from esphome.cpp_generator import AssignmentExpression, CallExpression, MockObj
+from esphome.cpp_generator import CallExpression, MockObj
 
 from ..defines import (
     CONF_DEFAULT,
@@ -44,15 +44,7 @@ from ..lvcode import (
     lv_Pvariable,
 )
 from ..schemas import ALL_STYLES, STYLE_REMAP, WIDGET_TYPES
-from ..types import (
+from ..types import LV_STATE, LvType, WidgetType, lv_coord_t, lv_obj_t, lv_obj_t_ptr
-    LV_STATE,
-    LvType,
-    WidgetType,
-    lv_coord_t,
-    lv_group_t,
-    lv_obj_t,
-    lv_obj_t_ptr,
-)
 
 EVENT_LAMB = "event_lamb__"
 
@@ -317,7 +309,8 @@ async def set_obj_properties(w: Widget, config):
                     value = await ALL_STYLES[prop].process(value)
                 prop_r = STYLE_REMAP.get(prop, prop)
                 w.set_style(prop_r, value, lv_state)
-    if group := add_group(config.get(CONF_GROUP)):
+    if group := config.get(CONF_GROUP):
+        group = await cg.get_variable(group)
         lv.group_add_obj(group, w.obj)
     flag_clr = set()
     flag_set = set()
@@ -404,20 +397,3 @@ async def widget_to_code(w_cnfig, w_type: WidgetType, parent):
 
 lv_scr_act_spec = LvScrActType()
 lv_scr_act = Widget.create(None, literal("lv_scr_act()"), lv_scr_act_spec, {})
-
-lv_groups = {}  # Widget group names
-
-
-def add_group(name):
-    if name is None:
-        return None
-    fullname = f"lv_esp_group_{name}"
-    if name not in lv_groups:
-        gid = ID(fullname, True, type=lv_group_t.operator("ptr"))
-        lv_add(
-            AssignmentExpression(
-                type_=gid.type, modifier="", name=fullname, rhs=lv_expr.group_create()
-            )
-        )
-        lv_groups[name] = literal(fullname)
-    return lv_groups[name]

tests/components/lvgl/test.esp32-ard.yaml

@@ -24,6 +24,33 @@ display:
     invert_colors: false
     update_interval: never
 
+binary_sensor:
+  - platform: gpio
+    internal: true
+    id: up_button
+    pin:
+      number: GPIO38
+      inverted: true
+  - platform: gpio
+    internal: true
+    id: down_button
+    pin:
+      number: GPIO37
+      inverted: true
+  - platform: gpio
+    internal: true
+    id: select_button
+    pin:
+      number: GPIO39
+      inverted: true
+lvgl:
+  encoders:
+    group: switches
+    enter_button: select_button
+    sensor:
+      left_button: up_button
+      right_button: down_button
+
 packages:
   lvgl: !include lvgl-package.yaml
 

tests/components/lvgl/test.esp32-idf.yaml

@@ -67,7 +67,7 @@ lvgl:
   displays:
     - tft_display
     - second_display
-  rotary_encoders:
+  encoders:
     sensor: encoder
     enter_button: pushbutton
     group: general