Add open user data button to main menu (#10579)

6 files changed, 74 insertions, 14 deletions

diff --git a/src/porting.cpp b/src/porting.cpp
index e7ed4e090..4c87bddee 100644
--- a/src/porting.cpp
+++ b/src/porting.cpp
@@ -719,29 +719,48 @@ int mt_snprintf(char *buf, const size_t buf_size, const char *fmt, ...)
 	return c;
 }
 
-bool openURL(const std::string &url)
+static bool open_uri(const std::string &uri)
 {
-	if ((url.substr(0, 7) != "http://" && url.substr(0, 8) != "https://") ||
-			url.find_first_of("\r\n") != std::string::npos) {
-		errorstream << "Invalid url: " << url << std::endl;
+	if (uri.find_first_of("\r\n") != std::string::npos) {
+		errorstream << "Unable to open URI as it is invalid, contains new line: " << uri << std::endl;
 		return false;
 	}
 
 #if defined(_WIN32)
-	return (intptr_t)ShellExecuteA(NULL, NULL, url.c_str(), NULL, NULL, SW_SHOWNORMAL) > 32;
+	return (intptr_t)ShellExecuteA(NULL, NULL, uri.c_str(), NULL, NULL, SW_SHOWNORMAL) > 32;
 #elif defined(__ANDROID__)
-	openURLAndroid(url);
+	openURIAndroid(uri);
 	return true;
 #elif defined(__APPLE__)
-	const char *argv[] = {"open", url.c_str(), NULL};
+	const char *argv[] = {"open", uri.c_str(), NULL};
 	return posix_spawnp(NULL, "open", NULL, NULL, (char**)argv,
 		(*_NSGetEnviron())) == 0;
 #else
-	const char *argv[] = {"xdg-open", url.c_str(), NULL};
+	const char *argv[] = {"xdg-open", uri.c_str(), NULL};
 	return posix_spawnp(NULL, "xdg-open", NULL, NULL, (char**)argv, environ) == 0;
 #endif
 }
 
+bool open_url(const std::string &url)
+{
+	if (url.substr(0, 7) != "http://" && url.substr(0, 8) != "https://") {
+		errorstream << "Unable to open browser as URL is missing schema: " << url << std::endl;
+		return false;
+	}
+
+	return open_uri(url);
+}
+
+bool open_directory(const std::string &path)
+{
+	if (!fs::IsDir(path)) {
+		errorstream << "Unable to open directory as it does not exist: " << path << std::endl;
+		return false;
+	}
+
+	return open_uri(path);
+}
+
 // Load performance counter frequency only once at startup
 #ifdef _WIN32
 
diff --git a/src/porting.h b/src/porting.h
index c7adf12a2..e4ebe36fd 100644
--- a/src/porting.h
+++ b/src/porting.h
@@ -332,7 +332,25 @@ void attachOrCreateConsole();
 
 int mt_snprintf(char *buf, const size_t buf_size, const char *fmt, ...);
 
-bool openURL(const std::string &url);
+/**
+ * Opens URL in default web browser
+ *
+ * Must begin with http:// or https://, and not contain any new lines
+ *
+ * @param url The URL
+ * @return true on success, false on failure
+ */
+bool open_url(const std::string &url);
+
+/**
+ * Opens a directory in the default file manager
+ *
+ * The directory must exist.
+ *
+ * @param path Path to directory
+ * @return true on success, false on failure
+ */
+bool open_directory(const std::string &path);
 
 } // namespace porting
 
diff --git a/src/porting_android.cpp b/src/porting_android.cpp
index 41b521ec2..f5870c174 100644
--- a/src/porting_android.cpp
+++ b/src/porting_android.cpp
@@ -213,13 +213,13 @@ void showInputDialog(const std::string &acceptButton, const std::string &hint,
 			jacceptButton, jhint, jcurrent, jeditType);
 }
 
-void openURLAndroid(const std::string &url)
+void openURIAndroid(const std::string &url)
 {
-	jmethodID url_open = jnienv->GetMethodID(nativeActivity, "openURL",
+	jmethodID url_open = jnienv->GetMethodID(nativeActivity, "openURI",
 		"(Ljava/lang/String;)V");
 
 	FATAL_ERROR_IF(url_open == nullptr,
-		"porting::openURLAndroid unable to find java openURL method");
+		"porting::openURIAndroid unable to find java openURI method");
 
 	jstring jurl = jnienv->NewStringUTF(url.c_str());
 	jnienv->CallVoidMethod(app_global->activity->clazz, url_open, jurl);
diff --git a/src/porting_android.h b/src/porting_android.h
index 6eb054041..239815922 100644
--- a/src/porting_android.h
+++ b/src/porting_android.h
@@ -58,7 +58,7 @@ void initializePathsAndroid();
 void showInputDialog(const std::string &acceptButton,
 					const std::string &hint, const std::string &current, int editType);
 
-void openURLAndroid(const std::string &url);
+void openURIAndroid(const std::string &url);
 
 /**
  * WORKAROUND for not working callbacks from java -> c++
diff --git a/src/script/lua_api/l_mainmenu.cpp b/src/script/lua_api/l_mainmenu.cpp
index 0aa2760e9..0b0b2de3b 100644
--- a/src/script/lua_api/l_mainmenu.cpp
+++ b/src/script/lua_api/l_mainmenu.cpp
@@ -687,6 +687,14 @@ int ModApiMainMenu::l_get_mapgen_names(lua_State *L)
 
 
 /******************************************************************************/
+int ModApiMainMenu::l_get_user_path(lua_State *L)
+{
+	std::string path = fs::RemoveRelativePathComponents(porting::path_user);
+	lua_pushstring(L, path.c_str());
+	return 1;
+}
+
+/******************************************************************************/
 int ModApiMainMenu::l_get_modpath(lua_State *L)
 {
 	std::string modpath = fs::RemoveRelativePathComponents(
@@ -1067,7 +1075,15 @@ int ModApiMainMenu::l_get_max_supp_proto(lua_State *L)
 int ModApiMainMenu::l_open_url(lua_State *L)
 {
 	std::string url = luaL_checkstring(L, 1);
-	lua_pushboolean(L, porting::openURL(url));
+	lua_pushboolean(L, porting::open_url(url));
+	return 1;
+}
+
+/******************************************************************************/
+int ModApiMainMenu::l_open_dir(lua_State *L)
+{
+	std::string path = luaL_checkstring(L, 1);
+	lua_pushboolean(L, porting::open_directory(path));
 	return 1;
 }
 
@@ -1113,6 +1129,7 @@ void ModApiMainMenu::Initialize(lua_State *L, int top)
 	API_FCT(set_background);
 	API_FCT(set_topleft_text);
 	API_FCT(get_mapgen_names);
+	API_FCT(get_user_path);
 	API_FCT(get_modpath);
 	API_FCT(get_clientmodpath);
 	API_FCT(get_gamepath);
@@ -1134,6 +1151,7 @@ void ModApiMainMenu::Initialize(lua_State *L, int top)
 	API_FCT(get_min_supp_proto);
 	API_FCT(get_max_supp_proto);
 	API_FCT(open_url);
+	API_FCT(open_dir);
 	API_FCT(do_async_callback);
 }
 
@@ -1144,6 +1162,7 @@ void ModApiMainMenu::InitializeAsync(lua_State *L, int top)
 	API_FCT(get_games);
 	API_FCT(get_favorites);
 	API_FCT(get_mapgen_names);
+	API_FCT(get_user_path);
 	API_FCT(get_modpath);
 	API_FCT(get_clientmodpath);
 	API_FCT(get_gamepath);
diff --git a/src/script/lua_api/l_mainmenu.h b/src/script/lua_api/l_mainmenu.h
index 5a16b3bfe..faa2bf273 100644
--- a/src/script/lua_api/l_mainmenu.h
+++ b/src/script/lua_api/l_mainmenu.h
@@ -112,6 +112,8 @@ private:
 
 	static int l_get_mainmenu_path(lua_State *L);
 
+	static int l_get_user_path(lua_State *L);
+
 	static int l_get_modpath(lua_State *L);
 
 	static int l_get_clientmodpath(lua_State *L);
@@ -148,6 +150,8 @@ private:
 	// other
 	static int l_open_url(lua_State *L);
 
+	static int l_open_dir(lua_State *L);
+
 
 	// async
 	static int l_do_async_callback(lua_State *L);