Keymapper:

- Introduced new OSystem method getHardwareKeySet() with default implementation
- Moved global keymap creation to base/main.cpp
- Moved GUI keymap creation to gui/GuiManager.cpp
- Added various safeguard checks to various keymapper methods

Now it is really possible to add keymapper to all backends.

svn-id: r40439

1 files changed, 10 insertions, 0 deletions

diff --git a/backends/keymapper/keymapper.cpp b/backends/keymapper/keymapper.cpp
index 25a8a64301..4668d34421 100644
--- a/backends/keymapper/keymapper.cpp
+++ b/backends/keymapper/keymapper.cpp
@@ -71,6 +71,11 @@ void Keymapper::registerHardwareKeySet(HardwareKeySet *keys) {
 	if (_hardwareKeys)
 		error("Hardware key set already registered!");
 
+	if (!keys) {
+		warning("No hardware keys are supplied");
+		return;
+	}
+
 	_hardwareKeys = keys;
 }
 
@@ -93,6 +98,11 @@ void Keymapper::addGameKeymap(Keymap *keymap) {
 }
 
 void Keymapper::initKeymap(Domain &domain, Keymap *map) {
+	if (!_hardwareKeys) {
+		warning("No hardware keys were registered yet (%s)", map->getName().c_str());
+		return;
+	}
+
 	map->setConfigDomain(domain.getConfigDomain());
 	map->loadMappings(_hardwareKeys);