IT WORKED

Desktop_Test/GLOBALS.h

@@ -17,11 +17,13 @@ enum CLICK_EVENTS : uint8_t {
   NONE = 0,
   LEFT_CLICK = 1,
   RIGHT_CLICK = 2,
+  KEYBOARD = 3,
 };
 
 struct CLICK_EVENT {
   short x;
   short y;
+  char character;
   CLICK_EVENTS event;
 };
 

Desktop_Test/example_programs.h

@@ -105,11 +105,7 @@ public:
       auto c_button = _window->content_buttons[i];
       if (event.x >= c_button.x && event.x <= (c_button.x + c_button.width) && event.y >= c_button.y && event.y <= (c_button.y + c_button.height)) {
         if (c_button.action == "show resources") {
-          for (short j = 0; j < _window->content_buttons.size(); ++j) {
-            _window->content_buttons[j].pressed = false;
-          }
-
-          Serial.println("I'm tired, boss...");
+          for (short j = 0; j < _window->content_buttons.size(); ++j) _window->content_buttons[j].pressed = false;
 
           _window->content_buttons[i].pressed = true;
           _display_state->update_display.store(true);
@@ -117,11 +113,7 @@ public:
         }
 
         if (c_button.action == "show tasks") {
-          for (short j = 0; j < _window->content_buttons.size(); ++j) {
-            _window->content_buttons[j].pressed = false;
-          }
-
-          Serial.println("ok...");
+          for (short j = 0; j < _window->content_buttons.size(); ++j) _window->content_buttons[j].pressed = false;
 
           _window->content_buttons[i].pressed = true;
           _display_state->update_display.store(true);

Desktop_Test/input_manager.cpp

@@ -1,8 +1,10 @@
 #include "event_manager.h"
 #include "GLOBALS.h"
 #include "tft_handler.h"
-#include "HardwareSerial.h"
 #include "input_manager.h"
+#include <Wire.h>
+
+#define CARDKB_ADDR 0x5F  // M5Stack CardKB I2C address
 
 void InputManager::init(DISPLAY_STATE* display_state, TFT_Handler* tf) {
   _display_state = display_state;
@@ -16,6 +18,8 @@ void InputManager::init(DISPLAY_STATE* display_state, TFT_Handler* tf) {
     .color = 0x0000,
   };
 
+  Wire.begin();
+
   for (int i = 0; i < NUM_BUTTONS; i++) {
     pinMode(BUTTON_PINS[i], INPUT_PULLUP);
   }
@@ -41,6 +45,91 @@ void InputManager::update() {
     
     lastButtonState[i] = reading;
   }
+
+
+  Wire.requestFrom(CARDKB_ADDR, 1);
+  if (Wire.available()) {
+    char c = Wire.read();
+    if (c != 0) {
+      handle_keyboard_input(c);
+    }
+  }
+}
+
+void InputManager::handle_keyboard_input(char key) {
+  bool needs_redraw = false;
+
+  Serial.printf("key: %x\n", key & 0xff);
+  CLICK_EVENT event;
+  
+  switch(key) {
+    case 'd':  // Right arrow alternative
+    case 'D':
+      mi.x = (mi.x + 5 > 476) ? 476 : mi.x + 5;
+      needs_redraw = true;
+      break;
+      
+    case 's':  // Down arrow alternative
+    case 'S':
+      mi.y = (mi.y + 5 > 316) ? 316 : mi.y + 5;
+      needs_redraw = true;
+      break;
+      
+    case 'w':  // Up arrow alternative
+    case 'W':
+      mi.y = (mi.y - 5 < 0) ? 0 : mi.y - 5;
+      needs_redraw = true;
+      break;
+      
+    case 'a':  // Left arrow alternative
+    case 'A':
+      mi.x = (mi.x - 5 < 0) ? 0 : mi.x - 5;
+      needs_redraw = true;
+      break;
+      
+    case 0xB4:  // Left arrow key (CardKB sends special codes)
+      mi.x = (mi.x - 5 < 0) ? 0 : mi.x - 5;
+      needs_redraw = true;
+      break;
+      
+    case 0xB7:  // Right arrow key
+      mi.x = (mi.x + 5 > 476) ? 476 : mi.x + 5;
+      needs_redraw = true;
+      break;
+      
+    case 0xB5:  // Up arrow key
+      mi.y = (mi.y - 5 < 0) ? 0 : mi.y - 5;
+      needs_redraw = true;
+      break;
+      
+    case 0xB6:  // Down arrow key
+      mi.y = (mi.y + 5 > 316) ? 316 : mi.y + 5;
+      needs_redraw = true;
+      break;
+      
+    case 0xD:   // Enter key - left click
+    case ' ':
+      event.x = mi.x;
+      event.y = mi.y;
+      event.event = CLICK_EVENTS::LEFT_CLICK;
+      break;
+      
+    case 'r':   // 'R' key - right click
+    case 'R':
+      event.x = mi.x;
+      event.y = mi.y;
+      event.event = CLICK_EVENTS::RIGHT_CLICK;
+      break;
+      
+    default:
+      break;
+  }
+
+  EventManager::getInstance().publish(event);
+  
+  if (needs_redraw) {
+    _display_state->update_display.store(true);
+  }
 }
 
 void InputManager::handle_button_press(short buttonIndex) {

Desktop_Test/input_manager.h

@@ -18,6 +18,7 @@ private:
   TFT_Handler* _tf;
   Mouse_Icon mi;
 
+  void handle_keyboard_input(char key);
   void handle_button_press(short buttonIndex);
   bool are_buttons_pressed(short btn1, short btn2);