Hook up the Keyboard device to the AbstractScreen.

Basic text editing in a TextBox works. How very cool :^)

Kernel/VirtualConsole.cpp

@@ -108,7 +108,9 @@ void VirtualConsole::set_active(bool b)
     set_vga_start_row(0);
     flush_vga_cursor();
 
+#if 0
     Keyboard::the().set_client(this);
+#endif
 }
 
 inline bool is_valid_parameter_character(byte ch)

Widgets/AbstractScreen.cpp

@@ -29,6 +29,7 @@ AbstractScreen::AbstractScreen(unsigned width, unsigned height)
     m_cursor_location = rect().center();
 
     PS2MouseDevice::the().set_client(this);
+    Keyboard::the().set_client(this);
 }
 
 AbstractScreen::~AbstractScreen()
@@ -62,3 +63,57 @@ void AbstractScreen::did_receive_mouse_data(int dx, int dy, bool left_button, bo
     if (m_cursor_location != prev_location)
         WindowManager::the().redraw_cursor();
 }
+
+void AbstractScreen::on_key_pressed(Keyboard::Key key)
+{
+    auto event = make<KeyEvent>(Event::KeyDown, 0);
+    int key_code = 0;
+
+    switch (key.character) {
+    case 8: key_code = KeyboardKey::Backspace; break;
+    case 10: key_code = KeyboardKey::Return; break;
+    }
+    event->m_key = key_code;
+
+    if (key.character) {
+        char buf[] = { 0, 0 };
+        char& ch = buf[0];
+        ch = key.character;
+        if (key.shift()) {
+            if (ch >= 'a' && ch <= 'z') {
+                ch &= ~0x20;
+            } else {
+                switch (ch) {
+                case '1': ch = '!'; break;
+                case '2': ch = '@'; break;
+                case '3': ch = '#'; break;
+                case '4': ch = '$'; break;
+                case '5': ch = '%'; break;
+                case '6': ch = '^'; break;
+                case '7': ch = '&'; break;
+                case '8': ch = '*'; break;
+                case '9': ch = '('; break;
+                case '0': ch = ')'; break;
+                case '-': ch = '_'; break;
+                case '=': ch = '+'; break;
+                case '`': ch = '~'; break;
+                case ',': ch = '<'; break;
+                case '.': ch = '>'; break;
+                case '/': ch = '?'; break;
+                case '[': ch = '{'; break;
+                case ']': ch = '}'; break;
+                case '\\': ch = '|'; break;
+                case '\'': ch = '"'; break;
+                case ';': ch = ':'; break;
+                }
+            }
+        }
+        event->m_text = buf;
+    }
+
+    event->m_shift = key.shift();
+    event->m_ctrl = key.ctrl();
+    event->m_alt = key.alt();
+
+    EventLoop::main().postEvent(&WindowManager::the(), move(event));
+}

Widgets/AbstractScreen.h

@@ -3,9 +3,10 @@
 #include "Object.h"
 #include "Rect.h"
 #include "Size.h"
+#include "Keyboard.h"
 #include "PS2MouseDevice.h"
 
-class AbstractScreen : public Object, public MouseClient {
+class AbstractScreen : public Object, public KeyboardClient, public MouseClient {
 public:
     virtual ~AbstractScreen();
 
@@ -30,6 +31,9 @@ private:
     // ^MouseClient
     virtual void did_receive_mouse_data(int dx, int dy, bool left_button, bool right_button) final;
 
+    // ^KeyboardClient
+    virtual void on_key_pressed(Keyboard::Key) final;
+
     int m_width { 0 };
     int m_height { 0 };
 

Widgets/Event.h

@@ -136,6 +136,7 @@ public:
 
 private:
     friend class EventLoop;
+    friend class AbstractScreen;
     int m_key { 0 };
     bool m_ctrl { false };
     bool m_alt { false };