latest SDK

foobar2000/SDK/link_resolver.h

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+#ifndef _foobar2000_sdk_link_resolver_h_
+#define _foobar2000_sdk_link_resolver_h_
+
+//! Interface for resolving different sorts of link files.
+//! Utilized by mechanisms that convert filesystem path into list of playable locations.
+//! For security reasons, link may only point to playable object path, not to a playlist or another link.
+
+class NOVTABLE link_resolver : public service_base
+{
+public:
+
+	//! Tests whether specified file is supported by this link_resolver service.
+	//! @param p_path Path of file being queried.
+	//! @param p_extension Extension of file being queried. This is provided for performance reasons, path already includes it.
+	virtual bool is_our_path(const char * p_path,const char * p_extension) = 0;
+
+	//! Resolves a link file. Before this is called, path must be accepted by is_our_path().
+	//! @param p_filehint Optional file interface to use. If null/empty, implementation should open file by itself.
+	//! @param p_path Path of link file to resolve.
+	//! @param p_out Receives path the link is pointing to.
+	//! @param p_abort abort_callback object signaling user aborting the operation.
+	virtual void resolve(service_ptr_t<file> p_filehint,const char * p_path,pfc::string_base & p_out,abort_callback & p_abort) = 0;
+
+	//! Helper function; finds link_resolver interface that supports specified link file.
+	//! @param p_out Receives link_resolver interface on success.
+	//! @param p_path Path of file to query.
+	//! @returns True on success, false on failure (no interface that supports specified path could be found).
+	static bool g_find(service_ptr_t<link_resolver> & p_out,const char * p_path);
+
+	FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT(link_resolver);
+};
+
+#endif //_foobar2000_sdk_link_resolver_h_