diff --git a/src/console_gui.cpp b/src/console_gui.cpp
index e97e458ff7..ca0a01853d 100644
--- a/src/console_gui.cpp
+++ b/src/console_gui.cpp
@@ -290,46 +290,13 @@ struct IConsoleWindow : Window
 				MarkWholeScreenDirty();
 				break;
 
-#ifdef WITH_COCOA
-			case (WKC_META | 'V'):
-#endif
-			case (WKC_CTRL | 'V'):
-				if (_iconsole_cmdline.InsertClipboard()) {
-					IConsoleResetHistoryPos();
-					this->SetDirty();
-				}
-				break;
-
 			case (WKC_CTRL | 'L'):
 				IConsoleCmdExec("clear");
 				break;
 
-#ifdef WITH_COCOA
-			case (WKC_META | 'U'):
-#endif
-			case (WKC_CTRL | 'U'):
-				_iconsole_cmdline.DeleteAll();
-				this->SetDirty();
-				break;
-
-			case WKC_BACKSPACE: case WKC_DELETE:
-				if (_iconsole_cmdline.DeleteChar(keycode)) {
-					IConsoleResetHistoryPos();
-					this->SetDirty();
-				}
-				break;
-
-			case WKC_LEFT: case WKC_RIGHT: case WKC_END: case WKC_HOME:
-				if (_iconsole_cmdline.MovePos(keycode)) {
-					IConsoleResetHistoryPos();
-					this->SetDirty();
-				}
-				break;
-
 			default:
-				if (IsValidChar(key, CS_ALPHANUMERAL)) {
+				if (_iconsole_cmdline.HandleKeyPress(key, keycode) != HKPR_NOT_HANDLED) {
 					IConsoleWindow::scroll = 0;
-					_iconsole_cmdline.InsertChar(key);
 					IConsoleResetHistoryPos();
 					this->SetDirty();
 				} else {
diff --git a/src/misc_gui.cpp b/src/misc_gui.cpp
index d6303fa35f..0fa450c51b 100644
--- a/src/misc_gui.cpp
+++ b/src/misc_gui.cpp
@@ -725,56 +725,6 @@ void GuiShowTooltips(Window *parent, StringID str, uint paramcount, const uint64
 	new TooltipsWindow(parent, str, paramcount, params, close_tooltip);
 }
 
-HandleEditBoxResult QueryString::HandleEditBoxKey(Window *w, int wid, uint16 key, uint16 keycode, EventState &state)
-{
-	if (!w->IsWidgetGloballyFocused(wid)) return HEBR_NOT_FOCUSED;
-
-	state = ES_HANDLED;
-
-	bool edited = false;
-
-	switch (keycode) {
-		case WKC_ESC: return HEBR_CANCEL;
-
-		case WKC_RETURN: case WKC_NUM_ENTER: return HEBR_CONFIRM;
-
-#ifdef WITH_COCOA
-		case (WKC_META | 'V'):
-#endif
-		case (WKC_CTRL | 'V'):
-			edited = this->text.InsertClipboard();
-			break;
-
-#ifdef WITH_COCOA
-		case (WKC_META | 'U'):
-#endif
-		case (WKC_CTRL | 'U'):
-			this->text.DeleteAll();
-			edited = true;
-			break;
-
-		case WKC_BACKSPACE: case WKC_DELETE:
-		case WKC_CTRL | WKC_BACKSPACE: case WKC_CTRL | WKC_DELETE:
-			edited = this->text.DeleteChar(keycode);
-			break;
-
-		case WKC_LEFT: case WKC_RIGHT: case WKC_END: case WKC_HOME:
-		case WKC_CTRL | WKC_LEFT: case WKC_CTRL | WKC_RIGHT:
-			this->text.MovePos(keycode);
-			break;
-
-		default:
-			if (IsValidChar(key, this->text.afilter)) {
-				edited = this->text.InsertChar(key);
-			} else {
-				state = ES_NOT_HANDLED;
-			}
-			break;
-	}
-
-	return edited ? HEBR_EDITING : HEBR_CURSOR;
-}
-
 void QueryString::HandleEditBox(Window *w, int wid)
 {
 	if (w->IsWidgetGloballyFocused(wid) && this->text.HandleCaret()) {
diff --git a/src/querystring_gui.h b/src/querystring_gui.h
index 6ec93ffd9a..b2c91f3540 100644
--- a/src/querystring_gui.h
+++ b/src/querystring_gui.h
@@ -16,18 +16,6 @@
 #include "textbuf_gui.h"
 #include "window_gui.h"
 
-/**
- * Return values for HandleEditBoxKey
- */
-enum HandleEditBoxResult
-{
-	HEBR_EDITING,     ///< Editbox content changed.
-	HEBR_CURSOR,      ///< Non-text change, e.g. cursor position.
-	HEBR_CONFIRM,     ///< Return or enter key pressed.
-	HEBR_CANCEL,      ///< Escape key pressed.
-	HEBR_NOT_FOCUSED, ///< Edit box widget not focused.
-};
-
 /**
  * Data stored about a string that can be modified in the GUI
  */
@@ -65,7 +53,6 @@ public:
 	void DrawEditBox(const Window *w, int wid) const;
 	void ClickEditBox(Window *w, Point pt, int wid, int click_count, bool focus_changed);
 	void HandleEditBox(Window *w, int wid);
-	HandleEditBoxResult HandleEditBoxKey(Window *w, int wid, uint16 key, uint16 keycode, EventState &state);
 };
 
 void ShowOnScreenKeyboard(Window *parent, int button);
diff --git a/src/textbuf.cpp b/src/textbuf.cpp
index 2a34a18d92..e84b14e7ba 100644
--- a/src/textbuf.cpp
+++ b/src/textbuf.cpp
@@ -450,3 +450,49 @@ bool Textbuf::HandleCaret()
 	}
 	return false;
 }
+
+HandleKeyPressResult Textbuf::HandleKeyPress(uint16 key, uint16 keycode)
+{
+	bool edited = false;
+
+	switch (keycode) {
+		case WKC_ESC: return HKPR_CANCEL;
+
+		case WKC_RETURN: case WKC_NUM_ENTER: return HKPR_CONFIRM;
+
+#ifdef WITH_COCOA
+		case (WKC_META | 'V'):
+#endif
+		case (WKC_CTRL | 'V'):
+			edited = this->InsertClipboard();
+			break;
+
+#ifdef WITH_COCOA
+		case (WKC_META | 'U'):
+#endif
+		case (WKC_CTRL | 'U'):
+			this->DeleteAll();
+			edited = true;
+			break;
+
+		case WKC_BACKSPACE: case WKC_DELETE:
+		case WKC_CTRL | WKC_BACKSPACE: case WKC_CTRL | WKC_DELETE:
+			edited = this->DeleteChar(keycode);
+			break;
+
+		case WKC_LEFT: case WKC_RIGHT: case WKC_END: case WKC_HOME:
+		case WKC_CTRL | WKC_LEFT: case WKC_CTRL | WKC_RIGHT:
+			this->MovePos(keycode);
+			break;
+
+		default:
+			if (IsValidChar(key, this->afilter)) {
+				edited = this->InsertChar(key);
+			} else {
+				return HKPR_NOT_HANDLED;
+			}
+			break;
+	}
+
+	return edited ? HKPR_EDITING : HKPR_CURSOR;
+}
diff --git a/src/textbuf_type.h b/src/textbuf_type.h
index e467a70dae..d0b75f8189 100644
--- a/src/textbuf_type.h
+++ b/src/textbuf_type.h
@@ -15,6 +15,18 @@
 #include "string_type.h"
 #include "strings_type.h"
 
+/**
+ * Return values for Textbuf::HandleKeypress
+ */
+enum HandleKeyPressResult
+{
+	HKPR_EDITING,     ///< Textbuf content changed.
+	HKPR_CURSOR,      ///< Non-text change, e.g. cursor position.
+	HKPR_CONFIRM,     ///< Return or enter key pressed.
+	HKPR_CANCEL,      ///< Escape key pressed.
+	HKPR_NOT_HANDLED, ///< Key does not affect editboxes.
+};
+
 /** Helper/buffer for input fields. */
 struct Textbuf {
 	CharSetFilter afilter;    ///< Allowed characters
@@ -43,6 +55,8 @@ struct Textbuf {
 	bool DeleteChar(uint16 keycode);
 	bool MovePos(uint16 keycode);
 
+	HandleKeyPressResult HandleKeyPress(uint16 key, uint16 keycode);
+
 	bool HandleCaret();
 	void UpdateSize();
 
diff --git a/src/window.cpp b/src/window.cpp
index f818471bd1..d223f5cfd6 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -2250,26 +2250,24 @@ static bool MaybeBringWindowToFront(Window *w)
  */
 EventState Window::HandleEditBoxKey(int wid, uint16 key, uint16 keycode)
 {
-	EventState state = ES_NOT_HANDLED;
-
 	QueryString *query = this->GetQueryString(wid);
-	if (query == NULL) return state;
+	if (query == NULL) return ES_NOT_HANDLED;
 
 	int action = QueryString::ACTION_NOTHING;
 
-	switch (query->HandleEditBoxKey(this, wid, key, keycode, state)) {
-		case HEBR_EDITING:
+	switch (query->text.HandleKeyPress(key, keycode)) {
+		case HKPR_EDITING:
 			this->SetWidgetDirty(wid);
 			this->OnEditboxChanged(wid);
 			break;
 
-		case HEBR_CURSOR:
+		case HKPR_CURSOR:
 			this->SetWidgetDirty(wid);
 			/* For the OSK also invalidate the parent window */
 			if (this->window_class == WC_OSK) this->InvalidateData();
 			break;
 
-		case HEBR_CONFIRM:
+		case HKPR_CONFIRM:
 			if (this->window_class == WC_OSK) {
 				this->OnClick(Point(), WID_OSK_OK, 1);
 			} else if (query->ok_button >= 0) {
@@ -2279,7 +2277,7 @@ EventState Window::HandleEditBoxKey(int wid, uint16 key, uint16 keycode)
 			}
 			break;
 
-		case HEBR_CANCEL:
+		case HKPR_CANCEL:
 			if (this->window_class == WC_OSK) {
 				this->OnClick(Point(), WID_OSK_CANCEL, 1);
 			} else if (query->cancel_button >= 0) {
@@ -2289,6 +2287,9 @@ EventState Window::HandleEditBoxKey(int wid, uint16 key, uint16 keycode)
 			}
 			break;
 
+		case HKPR_NOT_HANDLED:
+			return ES_NOT_HANDLED;
+
 		default: break;
 	}
 
@@ -2307,7 +2308,7 @@ EventState Window::HandleEditBoxKey(int wid, uint16 key, uint16 keycode)
 			break;
 	}
 
-	return state;
+	return ES_HANDLED;
 }
 
 /**