Disable (gray out) the Update and Remove add-ons options...

...in the connection dialog when there are no add-ons installed.

changelog

@@ -39,6 +39,8 @@ Version 1.7.5+svn:
    * Better visually differentiate name, type and race in sidebar
    * Add colorized terrain defense info in sidebar
    * In attack dialog, split damages and chance to hit and color the later.
+   * The Remove and Update add-ons options are disabled when there are no
+     add-ons installed
  * WML engine:
    * Fix silent=yes for objectives
    * Allow [story] [part] blocks to specify the title box alignment

data/gui/default/window/addon_connect.cfg

@@ -127,6 +127,8 @@
 								horizontal_alignment = "left"
 
 								[button]
+									id = "update_addons"
+
 									# just show how the default looks.
 									definition = "default"
 
@@ -158,6 +160,8 @@
 								horizontal_alignment = "right"
 
 								[button]
+									id = "remove_addons"
+
 									# just show how the default looks.
 									definition = "default"
 

players_changelog

@@ -32,6 +32,8 @@ Version 1.7.5+svn:
    * Better visually differentiate name, type and race in sidebar.
    * Add colorized terrain defense info in sidebar.
    * In attack dialog, split damages and chance to hit and color the later.
+   * Disable the Remove and Update add-ons buttons when there are no add-ons
+     installed.
 
 
 Version 1.7.5:

src/addon_management.cpp

@@ -1179,10 +1179,13 @@ void manage_addons(game_display& disp)
 	bool do_refresh = false;
 	std::string remote_host;
 	const std::string default_host = preferences::campaign_server();
+	const bool have_addons = !installed_addons().empty();
 
 	gui2::taddon_connect addon_dlg;
 
 	addon_dlg.set_host_name(default_host);
+	addon_dlg.set_allow_remove(have_addons);
+	addon_dlg.set_allow_updates(have_addons);
 	addon_dlg.show(disp.video());
 
 	res = addon_dlg.get_retval();

src/gui/dialogs/addon_connect.cpp

@@ -16,6 +16,7 @@
 
 #include "gui/dialogs/addon_connect.hpp"
 
+#include "gui/widgets/button.hpp"
 #include "gui/widgets/window.hpp"
 #include "gui/widgets/text_box.hpp"
 
@@ -48,6 +49,12 @@ void taddon_connect::pre_show(CVideo& /*video*/, twindow& window)
 {
 	ttext_box& host_widget =
 			find_widget<ttext_box>(&window, "host_name", false);
+	tbutton& update_cmd =
+			find_widget<tbutton>(&window, "update_addons", false);
+	update_cmd.set_active( allow_updates_ );
+	tbutton& remove_cmd =
+			find_widget<tbutton>(&window, "remove_addons", false);
+	remove_cmd.set_active( allow_remove_ );
 
 	host_widget.set_value(host_name_);
 	window.keyboard_capture(&host_widget);

src/gui/dialogs/addon_connect.hpp

@@ -26,9 +26,25 @@ class taddon_connect
 public:
 	taddon_connect()
 		: host_name_()
+		, allow_updates_()
+		, allow_remove_()
 	{
 	}
 
+	bool allow_updates() const { return allow_updates_; }
+
+	void set_allow_updates(bool allow_updates)
+	{
+		allow_updates_ = allow_updates;
+	}
+
+	bool allow_remove() const { return allow_remove_; }
+
+	void set_allow_remove(bool allow_remove)
+	{
+		allow_remove_ = allow_remove;
+	}
+
 	const std::string& host_name() const { return host_name_; }
 
 	void set_host_name(const std::string& host_name)
@@ -39,6 +55,9 @@ public:
 private:
 	std::string host_name_;
 
+	bool allow_updates_;
+	bool allow_remove_;
+
 	/** Inherited from tdialog. */
 	twindow* build_window(CVideo& video);