Added "autocomplete" function to ResourceLocator and Registry

1 files changed, 39 insertions, 0 deletions

diff --git a/src/core/resource/ResourceLocator.cpp b/src/core/resource/ResourceLocator.cpp
index b19542e..da38cbd 100644
--- a/src/core/resource/ResourceLocator.cpp
+++ b/src/core/resource/ResourceLocator.cpp
@@ -25,6 +25,37 @@ namespace ousia {
 
 /* Class ResourceLocator */
 
+std::vector<std::string> ResourceLocator::autocomplete(
+    const std::string &path, const ResourceType type,
+    const Resource &relativeTo) const
+{
+	// If the locator of the given relative resource is this locator instance,
+	// use the location specified in the resource, otherwise just use no
+	// "relativeTo" path.
+	if (&relativeTo.getLocator() == this) {
+		return autocomplete(path, type, relativeTo.getLocation());
+	}
+	return autocomplete(path, type, "");
+}
+
+std::vector<std::string> ResourceLocator::autocomplete(
+    const std::string &path, const ResourceType type,
+    const std::string &relativeTo) const
+{
+	// Try to locate the resource for the specified type, if not found, use
+	// the "UNKNOWN" type.
+	std::vector<std::string> res = doAutocomplete(path, type, relativeTo);
+	if (!res.empty()) {
+		return res;
+	}
+
+	// Use the "UNKNOWN" type
+	if (type != ResourceType::UNKNOWN) {
+		return doAutocomplete(path, ResourceType::UNKNOWN, relativeTo);
+	}
+	return std::vector<std::string>{};
+}
+
 bool ResourceLocator::locate(Resource &resource, const std::string &path,
                              const ResourceType type,
                              const Resource &relativeTo) const
@@ -59,6 +90,14 @@ std::unique_ptr<std::istream> ResourceLocator::stream(
 	return doStream(location);
 }
 
+std::vector<std::string> ResourceLocator::doAutocomplete(
+    const std::string &path, const ResourceType type,
+    const std::string &relativeTo) const
+{
+	// Default implementation
+	return std::vector<std::string>{};
+}
+
 /* Class StaticResourceLocator */
 
 bool StaticResourceLocator::doLocate(Resource &resource,