Adding the new kFeatureDisableKeyFiltering OSystem feature.

This feature is used by agi's prediction dialog and is a hint to the backend
to temporarily switch off any keyboard mapping, used in devices with limited
keyboard input. Also, supply some comments to the newly added event & feature.

svn-id: r27069

1 files changed, 2 insertions, 0 deletions

diff --git a/engines/agi/predictive.cpp b/engines/agi/predictive.cpp
index e3f38463ac..230c15de58 100644
--- a/engines/agi/predictive.cpp
+++ b/engines/agi/predictive.cpp
@@ -120,6 +120,7 @@ bool AgiEngine::predictiveDialog(void) {
 	AgiBlock tmpwindow;
 
 	_predictiveDialogRunning = true;
+	_system->setFeatureState(OSystem::kFeatureDisableKeyFiltering, true);
 	
 	// FIXME: Move this to a more appropriate place.
 	initAsciiToNumTable();
@@ -405,6 +406,7 @@ processkey:
 		_gfx->doUpdate();
 	}
 
+	_system->setFeatureState(OSystem::kFeatureDisableKeyFiltering, false);
 	_predictiveDialogRunning = false;
 
 	return rc;