send actual dimensions of remote client at connection

src/main.cc

@@ -567,7 +567,6 @@ void setup_server()
 
         auto& buffer = *BufferManager::instance().begin();
         RemoteUI* ui = new RemoteUI{sock};
-        ui->set_dimensions(DisplayCoord(24, 80));
         Client client{ui, *buffer->get_or_create_window()};
         InputHandler*  input_handler = client.input_handler.get();
         Context*       context = client.context.get();

src/remote.cc

@@ -174,9 +174,16 @@ void RemoteUI::draw(const DisplayBuffer& display_buffer,
     write(msg, status_line);
 }
 
+static const Key::Modifiers resize_modifier = (Key::Modifiers)0x80;
+
 Key RemoteUI::get_key()
 {
     Key key = read<Key>(m_socket);
+    if (key.modifiers == resize_modifier)
+    {
+        m_dimensions = { (int)(key.key >> 16), (int)(key.key & 0xFFFF) };
+        return Key::Invalid;
+    }
     return key;
 }
 
@@ -185,6 +192,15 @@ DisplayCoord RemoteUI::dimensions()
     return m_dimensions;
 }
 
+RemoteClient::RemoteClient(int socket, UserInterface* ui)
+    : m_socket(socket), m_ui(ui)
+{
+     DisplayCoord size = ui->dimensions();
+     Key key{ resize_modifier, (Codepoint)(((int)size.line << 16) | (int)size.column) };
+     Message msg(socket);
+     write(msg, key);
+}
+
 void RemoteClient::process_next_message()
 {
     RemoteUIMsg msg = read<RemoteUIMsg>(m_socket);

src/remote.hh

@@ -21,7 +21,6 @@ public:
               const String& status_line) override;
     Key  get_key() override;
     DisplayCoord dimensions() override;
-    void set_dimensions(const DisplayCoord dim) { m_dimensions = dim; }
 
 private:
     int          m_socket;
@@ -31,7 +30,7 @@ private:
 class RemoteClient
 {
 public:
-    RemoteClient(int socket, UserInterface* ui) : m_ui(ui), m_socket(socket) {}
+    RemoteClient(int socket, UserInterface* ui);
 
     void process_next_message();
     void write_next_key();