Add text component (#5336)

Co-authored-by: Maurits <maurits@vloop.nl>
Co-authored-by: mauritskorse <mauritskorse@gmail.com>
Co-authored-by: Daniel Dunn <dannydunn@eternityforest.com>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

esphome/components/copy/text/__init__.py

@@ -0,0 +1,36 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import text
+from esphome.const import (
+    CONF_ENTITY_CATEGORY,
+    CONF_ICON,
+    CONF_MODE,
+    CONF_SOURCE_ID,
+)
+from esphome.core.entity_helpers import inherit_property_from
+
+from .. import copy_ns
+
+CopyText = copy_ns.class_("CopyText", text.Text, cg.Component)
+
+
+CONFIG_SCHEMA = text.TEXT_SCHEMA.extend(
+    {
+        cv.GenerateID(): cv.declare_id(CopyText),
+        cv.Required(CONF_SOURCE_ID): cv.use_id(text.Text),
+    }
+).extend(cv.COMPONENT_SCHEMA)
+
+FINAL_VALIDATE_SCHEMA = cv.All(
+    inherit_property_from(CONF_ICON, CONF_SOURCE_ID),
+    inherit_property_from(CONF_ENTITY_CATEGORY, CONF_SOURCE_ID),
+    inherit_property_from(CONF_MODE, CONF_SOURCE_ID),
+)
+
+
+async def to_code(config):
+    var = await text.new_text(config)
+    await cg.register_component(var, config)
+
+    source = await cg.get_variable(config[CONF_SOURCE_ID])
+    cg.add(var.set_source(source))

esphome/components/copy/text/copy_text.cpp

@@ -0,0 +1,25 @@
+#include "copy_text.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace copy {
+
+static const char *const TAG = "copy.text";
+
+void CopyText::setup() {
+  source_->add_on_state_callback([this](const std::string &value) { this->publish_state(value); });
+
+  if (source_->has_state())
+    this->publish_state(source_->state);
+}
+
+void CopyText::dump_config() { LOG_TEXT("", "Copy Text", this); }
+
+void CopyText::control(const std::string &value) {
+  auto call2 = source_->make_call();
+  call2.set_value(value);
+  call2.perform();
+}
+
+}  // namespace copy
+}  // namespace esphome

esphome/components/copy/text/copy_text.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/text/text.h"
+
+namespace esphome {
+namespace copy {
+
+class CopyText : public text::Text, public Component {
+ public:
+  void set_source(text::Text *source) { source_ = source; }
+  void setup() override;
+  void dump_config() override;
+  float get_setup_priority() const override { return setup_priority::DATA; }
+
+ protected:
+  void control(const std::string &value) override;
+
+  text::Text *source_;
+};
+
+}  // namespace copy
+}  // namespace esphome