From 32f93bef5d1117ae1ae90525108747f5c786b5be Mon Sep 17 00:00:00 2001
From: yellows8 <yellows8@users.noreply.github.com>
Date: Thu, 20 Dec 2018 13:06:20 -0500
Subject: [PATCH] Added initial swkbd impl.

---
 nx/include/switch.h               |  1 +
 nx/include/switch/applets/swkbd.h | 30 ++++++++++++++
 nx/source/applets/swkbd.c         | 65 +++++++++++++++++++++++++++++++
 3 files changed, 96 insertions(+)
 create mode 100644 nx/include/switch/applets/swkbd.h
 create mode 100644 nx/source/applets/swkbd.c

diff --git a/nx/include/switch.h b/nx/include/switch.h
index 99599e53..71b9c01c 100644
--- a/nx/include/switch.h
+++ b/nx/include/switch.h
@@ -101,6 +101,7 @@ extern "C" {
 #include "switch/audio/driver.h"
 
 #include "switch/applets/libapplet.h"
+#include "switch/applets/swkbd.h"
 
 #include "switch/runtime/env.h"
 #include "switch/runtime/nxlink.h"
diff --git a/nx/include/switch/applets/swkbd.h b/nx/include/switch/applets/swkbd.h
new file mode 100644
index 00000000..adddccb4
--- /dev/null
+++ b/nx/include/switch/applets/swkbd.h
@@ -0,0 +1,30 @@
+/**
+ * @file swkbd.h
+ * @brief Wrapper for using the swkbd LibraryApplet.
+ * @author yellows8
+ * @copyright libnx Authors
+ */
+#pragma once
+#include "../types.h"
+#include "../services/applet.h"
+
+typedef struct {
+    u8 data[0x3E0];//TODO: Fill this in.
+} SwkbdArg;
+
+typedef struct {
+    SwkbdArg arg;
+} SwkbdConfig;
+
+/**
+ * @brief Creates a SwkbdConfig struct.
+ * @param c SwkbdConfig struct.
+ */
+void swkbdCreate(SwkbdConfig* c);
+
+/**
+ * @brief Launch swkbd with the specified config. This will return once swkbd is finished running.
+ * @param c SwkbdConfig struct.
+ */
+Result swkbdShow(SwkbdConfig* c);
+
diff --git a/nx/source/applets/swkbd.c b/nx/source/applets/swkbd.c
new file mode 100644
index 00000000..055f5b5f
--- /dev/null
+++ b/nx/source/applets/swkbd.c
@@ -0,0 +1,65 @@
+#include <string.h>
+#include "types.h"
+#include "result.h"
+#include "services/applet.h"
+#include "applets/libapplet.h"
+#include "applets/swkbd.h"
+
+void swkbdCreate(SwkbdConfig* c) {
+    memset(c, 0, sizeof(SwkbdConfig));
+}
+
+Result swkbdShow(SwkbdConfig* c) {
+    Result rc=0;
+    AppletHolder holder;
+    AppletStorage storage;
+    u8 *workbuf = NULL;//TODO
+    size_t workbuf_size = 0x1000;//TODO
+
+    memset(&storage, 0, sizeof(AppletStorage));
+
+    rc = appletCreateLibraryApplet(&holder, AppletId_swkbd, LibAppletMode_AllForeground);
+    if (R_FAILED(rc)) return rc;
+
+    LibAppletArgs commonargs;
+    libappletArgsCreate(&commonargs, 0x5);//1.0.0+ version
+    rc = libappletArgsPush(&commonargs, &holder);
+
+    if (R_SUCCEEDED(rc)) rc = libappletPushInData(&holder, &c->arg, sizeof(c->arg));
+
+    if (R_SUCCEEDED(rc)) {
+        if (R_SUCCEEDED(rc)) rc = appletCreateTransferMemoryStorage(&storage, workbuf, workbuf_size, true);
+        appletHolderPushInData(&holder, &storage);
+    }
+
+    if (R_SUCCEEDED(rc)) rc = appletHolderStart(&holder);
+
+    if (R_SUCCEEDED(rc)) {
+        while(appletHolderWaitInteractiveOut(&holder)) {
+            //TODO: Handle Interactive data here.
+        }
+    }
+
+    if (R_SUCCEEDED(rc)) {
+        appletHolderJoin(&holder);
+
+        LibAppletExitReason reason = appletHolderGetExitReason(&holder);
+
+        if (reason == LibAppletExitReason_Canceled) {
+            rc = 0x29f;//TODO: Official sw returns this, replace it with something else.
+        }
+        else if (reason == LibAppletExitReason_Abnormal || reason == LibAppletExitReason_Unexpected) {
+            //TODO: Official sw asserts here - return a proper error here.
+            return -1;
+        }
+        else { //success
+            //TODO: Process the output storage here. When the output CloseResult indicates failure, official sw returns same error as above.
+        }
+    }
+
+    appletHolderClose(&holder);
+    appletStorageCloseTmem(&storage);
+
+    return rc;
+}
+