[lvgl] Final stage (#7184)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

esphome/components/lvgl/number/__init__.py

@@ -0,0 +1,52 @@
+import esphome.codegen as cg
+from esphome.components import number
+import esphome.config_validation as cv
+from esphome.cpp_generator import MockObj
+
+from ..defines import CONF_ANIMATED, CONF_LVGL_ID, CONF_WIDGET
+from ..lv_validation import animated
+from ..lvcode import CUSTOM_EVENT, EVENT_ARG, LambdaContext, LvContext, lv, lv_add
+from ..schemas import LVGL_SCHEMA
+from ..types import LV_EVENT, LvNumber, lvgl_ns
+from ..widgets import get_widgets
+
+LVGLNumber = lvgl_ns.class_("LVGLNumber", number.Number)
+
+CONFIG_SCHEMA = (
+    number.number_schema(LVGLNumber)
+    .extend(LVGL_SCHEMA)
+    .extend(
+        {
+            cv.Required(CONF_WIDGET): cv.use_id(LvNumber),
+            cv.Optional(CONF_ANIMATED, default=True): animated,
+        }
+    )
+)
+
+
+async def to_code(config):
+    paren = await cg.get_variable(config[CONF_LVGL_ID])
+    widget = await get_widgets(config, CONF_WIDGET)
+    widget = widget[0]
+    var = await number.new_number(
+        config,
+        max_value=widget.get_max(),
+        min_value=widget.get_min(),
+        step=widget.get_step(),
+    )
+
+    async with LambdaContext([(cg.float_, "v")]) as control:
+        await widget.set_property(
+            "value", MockObj("v") * MockObj(widget.get_scale()), config[CONF_ANIMATED]
+        )
+        lv.event_send(widget.obj, CUSTOM_EVENT, cg.nullptr)
+    async with LambdaContext(EVENT_ARG) as event:
+        event.add(var.publish_state(widget.get_value()))
+    async with LvContext(paren):
+        lv_add(var.set_control_lambda(await control.get_lambda()))
+        lv_add(
+            paren.add_event_cb(
+                widget.obj, await event.get_lambda(), LV_EVENT.VALUE_CHANGED
+            )
+        )
+        lv_add(var.publish_state(widget.get_value()))

esphome/components/lvgl/number/lvgl_number.h

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+#pragma once
+
+#include "esphome/components/number/number.h"
+#include "esphome/core/automation.h"
+#include "esphome/core/component.h"
+#include "esphome/core/preferences.h"
+
+namespace esphome {
+namespace lvgl {
+
+class LVGLNumber : public number::Number {
+ public:
+  void set_control_lambda(std::function<void(float)> control_lambda) {
+    this->control_lambda_ = control_lambda;
+    if (this->initial_state_.has_value()) {
+      this->control_lambda_(this->initial_state_.value());
+      this->initial_state_.reset();
+    }
+  }
+
+ protected:
+  void control(float value) {
+    if (this->control_lambda_ != nullptr)
+      this->control_lambda_(value);
+    else
+      this->initial_state_ = value;
+  }
+  std::function<void(float)> control_lambda_{};
+  optional<float> initial_state_{};
+};
+
+}  // namespace lvgl
+}  // namespace esphome