ALL: Add MetaEngine::simpleSaveNames()

Engines with "simple" savenames would support "Run in background" in
save/load dialog and gradual save slots unlocking. Other engines
save/load feature would be locked until save sync is over.

1 files changed, 3 insertions, 0 deletions

diff --git a/engines/adl/detection.cpp b/engines/adl/detection.cpp
index 4bdb722af3..7031a58ec4 100644
--- a/engines/adl/detection.cpp
+++ b/engines/adl/detection.cpp
@@ -175,6 +175,7 @@ public:
 	SaveStateDescriptor querySaveMetaInfos(const char *target, int slot) const;
 	int getMaximumSaveSlot() const { return 'O' - 'A'; }
 	SaveStateList listSaves(const char *target) const;
+	virtual bool simpleSaveNames() const;
 	void removeSaveState(const char *target, int slot) const;
 
 	bool createInstance(OSystem *syst, Engine **engine, const ADGameDescription *gd) const;
@@ -289,6 +290,8 @@ SaveStateList AdlMetaEngine::listSaves(const char *target) const {
 	return saveList;
 }
 
+bool AdlMetaEngine::simpleSaveNames() const { return true; }
+
 void AdlMetaEngine::removeSaveState(const char *target, int slot) const {
 	Common::String fileName = Common::String::format("%s.s%02d", target, slot);
 	g_system->getSavefileManager()->removeSavefile(fileName);