Slider support for cover

src/device-types/HACover.cpp

@@ -15,7 +15,8 @@ HACover::HACover(const char* uniqueId, const Features features) :
     _icon(nullptr),
     _retain(false),
     _optimistic(false),
-    _commandCallback(nullptr)
+    _commandCallback(nullptr),
+    _setPosCallback(nullptr)
 {
 
 }
@@ -83,6 +84,7 @@ void HACover::buildSerializer()
 
     if (_features & PositionFeature) {
         _serializer->topic(AHATOFSTR(HAPositionTopic));
+        _serializer->topic(AHATOFSTR(HASetPositionTopic));
     }
 }
 
@@ -101,6 +103,11 @@ void HACover::onMqttConnected()
     }
 
     subscribeTopic(uniqueId(), AHATOFSTR(HACommandTopic));
+
+    if (_features & PositionFeature) {
+        subscribeTopic(uniqueId(), AHATOFSTR(HASetPositionTopic));
+    }    
+
 }
 
 void HACover::onMqttMessage(
@@ -116,6 +123,14 @@ void HACover::onMqttMessage(
     )) {
         handleCommand(payload, length);
     }
+
+    if (HASerializer::compareDataTopics(
+        topic,
+        uniqueId(),
+        AHATOFSTR(HASetPositionTopic)
+    )) {
+        handleSetPosition(payload, length);
+    }    
 }
 
 bool HACover::publishState(CoverState state)
@@ -180,4 +195,21 @@ void HACover::handleCommand(const uint8_t* cmd, const uint16_t length)
     }
 }
 
+void HACover::handleSetPosition(const uint8_t* cmd, const uint16_t length)
+{
+    if (!_setPosCallback) {
+        return;
+    }
+
+    if (memcmp_P(cmd, HAStateNone, length) == 0) {
+        _setPosCallback(HANumeric(), this);
+    } else {
+        HANumeric number = HANumeric::fromStr(cmd, length);
+        if (number.isSet()) {
+            number.setPrecision(0);
+            _setPosCallback(number, this);
+        }
+    }
+}
+
 #endif

src/device-types/HACover.h

@@ -2,10 +2,12 @@
 #define AHA_HACOVER_H
 
 #include "HABaseDeviceType.h"
+#include "../utils/HANumeric.h"
 
 #ifndef EX_ARDUINOHA_COVER
 
 #define HACOVER_CALLBACK(name) void (*name)(CoverCommand cmd, HACover* sender)
+#define HACOVER_SET_POS_CALLBACK(name) void (*name)(HANumeric number, HACover* sender)
 
 /**
  * HACover allows to control a cover (such as blinds, a roller shutter or a garage door).
@@ -147,6 +149,15 @@ class HACover : public HABaseDeviceType
     inline void onCommand(HACOVER_CALLBACK(callback))
         { _commandCallback = callback; }
 
+    /**
+     * Registers callback that will be called each time the set position command from HA is received.
+     * Please note that it's not possible to register multiple callbacks for the same cover.
+     *
+     * @param callback
+     */
+    inline void onSetPosition(HACOVER_SET_POS_CALLBACK(callback))
+        { _setPosCallback = callback; }
+
 protected:
     virtual void buildSerializer() override;
     virtual void onMqttConnected() override;
@@ -180,6 +191,14 @@ class HACover : public HABaseDeviceType
      * @param length Length of the command.
      */
     void handleCommand(const uint8_t* cmd, const uint16_t length);
+
+    /**
+     * Parses the given set position command and executes the cover's callback..
+     *
+     * @param cmd The data of the command.
+     * @param length Length of the command.
+     */
+    void handleSetPosition(const uint8_t *cmd, const uint16_t length);
 
     /// Features enabled for the cover.
     const uint8_t _features;
@@ -204,6 +223,10 @@ class HACover : public HABaseDeviceType
 
     /// The command callback that will be called when clicking the cover's button in the HA panel.
     HACOVER_CALLBACK(_commandCallback);
+
+    /// The command callback that will be called when sliding the cover's slider in the HA panel.
+    HACOVER_SET_POS_CALLBACK(_setPosCallback);
+
 };
 
 #endif

src/utils/HADictionary.cpp

@@ -79,6 +79,7 @@ const char HATopic[] PROGMEM = {"t"};
 const char HAStateTopic[] PROGMEM = {"stat_t"};
 const char HACommandTopic[] PROGMEM = {"cmd_t"};
 const char HAPositionTopic[] PROGMEM = {"pos_t"};
+const char HASetPositionTopic[] PROGMEM = {"set_pos_t"};
 const char HAPercentageStateTopic[] PROGMEM = {"pct_stat_t"};
 const char HAPercentageCommandTopic[] PROGMEM = {"pct_cmd_t"};
 const char HABrightnessCommandTopic[] PROGMEM = {"bri_cmd_t"};

src/utils/HADictionary.h

@@ -79,6 +79,7 @@ extern const char HATopic[];
 extern const char HAStateTopic[];
 extern const char HACommandTopic[];
 extern const char HAPositionTopic[];
+extern const char HASetPositionTopic[];
 extern const char HAPercentageStateTopic[];
 extern const char HAPercentageCommandTopic[];
 extern const char HABrightnessCommandTopic[];