Added support to load plugins from different directories and the ability to specify the default directory from configure.

svn-id: r31816

2 files changed, 72 insertions, 0 deletions

diff --git a/base/plugins.cpp b/base/plugins.cpp
index 188eb10475..c62d1a00b9 100644
--- a/base/plugins.cpp
+++ b/base/plugins.cpp
@@ -162,6 +162,65 @@ public:
 	}
 };
 
+#else
+
+PluginList FilePluginProvider::getPlugins() {
+	PluginList pl;
+
+	// Prepare the list of directories to search
+	Common::StringList pluginDirs;
+	// TODO: Add the user specified directory (via config file)
+	pluginDirs.push_back(".");
+	pluginDirs.push_back("plugins");
+
+	// Add the provider's custom directories
+	addCustomDirectories(pluginDirs);
+
+	Common::StringList::const_iterator d;
+	for (d = pluginDirs.begin(); d != pluginDirs.end(); d++) {
+		// Load all plugins.
+		// Scan for all plugins in this directory
+		FilesystemNode dir(*d);
+		FSList files;
+		if (!dir.getChildren(files, FilesystemNode::kListFilesOnly)) {
+			debug(1, "Couldn't open plugin directory '%s'", d->c_str());
+			continue;
+		} else {
+			debug(1, "Reading plugins from plugin directory '%s'", d->c_str());
+		}
+
+		for (FSList::const_iterator i = files.begin(); i != files.end(); ++i) {
+			Common::String name(i->getName());
+			if (name.hasPrefix(getPrefix()) && name.hasSuffix(getSuffix())) {
+				pl.push_back(createPlugin(i->getPath()));
+			}
+		}
+	}
+
+	return pl;
+}
+
+const char* FilePluginProvider::getPrefix() const {
+#ifdef PLUGIN_PREFIX
+	return PLUGIN_PREFIX;
+#else
+	return "";
+#endif
+}
+
+const char* FilePluginProvider::getSuffix() const {
+#ifdef PLUGIN_SUFFIX
+	return PLUGIN_SUFFIX;
+#else
+	return "";
+#endif
+}
+
+void FilePluginProvider::addCustomDirectories(Common::StringList &dirs) const {
+#ifdef PLUGIN_DIRECTORY
+	dirs.push_back(PLUGIN_DIRECTORY);
+#endif
+}
 
 #endif
 
diff --git a/base/plugins.h b/base/plugins.h
index da48a7c22a..f317a533ae 100644
--- a/base/plugins.h
+++ b/base/plugins.h
@@ -147,6 +147,19 @@ public:
 	virtual PluginList getPlugins() = 0;
 };
 
+class FilePluginProvider : public PluginProvider {
+public:
+	virtual PluginList getPlugins();
+
+protected:
+	virtual Plugin* createPlugin(const Common::String &filename) const = 0;
+
+	virtual const char* getPrefix() const;
+	virtual const char* getSuffix() const;
+
+	virtual void addCustomDirectories(Common::StringList &dirs) const;
+};
+
 /**
  * Instances of this class manage all plugins, including loading them,
  * making wrapper objects of class Plugin available, and unloading them.