From d530449e54bd327e9c26209ffa0490c6508afe6c Mon Sep 17 00:00:00 2001
From: Sen Jiang <senj@google.com>
Date: Fri, 9 Dec 2016 16:20:49 -0800
Subject: Add a stub recovery UI.

This allows recovery to work on devices without screen.
The stub recovery UI does nothing except print to stdout.

Test: write 'recovery\n--wipe_data\n--reason=wipe_data_from_ota\n'
      to misc and boot to recovery on a device without screen.
Bug: 33175036

Change-Id: Icde698aa2e2e29f4b3d0532dfd3c6a939ac2bc63
---
 stub_ui.h | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 stub_ui.h

(limited to 'stub_ui.h')

diff --git a/stub_ui.h b/stub_ui.h
new file mode 100644
index 000000000..1219b284c
--- /dev/null
+++ b/stub_ui.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef RECOVERY_STUB_UI_H
+#define RECOVERY_STUB_UI_H
+
+#include "ui.h"
+
+// Stub implementation of RecoveryUI for devices without screen.
+class StubRecoveryUI : public RecoveryUI {
+ public:
+  StubRecoveryUI() = default;
+
+  void SetLocale(const char* locale) override {}
+
+  void SetBackground(Icon icon) override {}
+  void SetSystemUpdateText(bool security_update) override {}
+
+  // progress indicator
+  void SetProgressType(ProgressType type) override {}
+  void ShowProgress(float portion, float seconds) override {}
+  void SetProgress(float fraction) override {}
+
+  void SetStage(int current, int max) override {}
+
+  // text log
+  void ShowText(bool visible) override {}
+  bool IsTextVisible() override {
+    return false;
+  }
+  bool WasTextEverVisible() override {
+    return false;
+  }
+
+  // printing messages
+  void Print(const char* fmt, ...) override {
+    va_list ap;
+    va_start(ap, fmt);
+    vprintf(fmt, ap);
+    va_end(ap);
+  }
+  void PrintOnScreenOnly(const char* fmt, ...) override {}
+  void ShowFile(const char* filename) override {}
+
+  // menu display
+  void StartMenu(const char* const* headers, const char* const* items,
+                 int initial_selection) override {}
+  int SelectMenu(int sel) override {
+    return sel;
+  }
+  void EndMenu() override {}
+};
+
+#endif  // RECOVERY_STUB_UI_H
-- 
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