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/*
* Copyright (C) 2011 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_DEVICE_H
#define _RECOVERY_DEVICE_H
#include "ui.h"
#include <stack>
#define KEY_FLAG_ABS 0x8000
struct menu;
class Device : public VoldWatcher {
public:
explicit Device(RecoveryUI* ui);
virtual ~Device() { }
// Called to obtain the UI object that should be used to display
// the recovery user interface for this device. You should not
// have called Init() on the UI object already, the caller will do
// that after this method returns.
virtual RecoveryUI* GetUI() { return ui_; }
// Called when recovery starts up (after the UI has been obtained
// and initialized and after the arguments have been parsed, but
// before anything else).
virtual void StartRecovery() { };
// Called from the main thread when recovery is at the main menu
// and waiting for input, and a key is pressed. (Note that "at"
// the main menu does not necessarily mean the menu is visible;
// recovery will be at the main menu with it invisible after an
// unsuccessful operation [ie OTA package failure], or if recovery
// is started with no command.)
//
// key is the code of the key just pressed. (You can call
// IsKeyPressed() on the RecoveryUI object you returned from GetUI
// if you want to find out if other keys are held down.)
//
// visible is true if the menu is visible.
//
// Return one of the defined constants below in order to:
//
// - move the menu highlight (kHighlight{Up,Down})
// - invoke the highlighted item (kInvokeItem)
// - do nothing (kNoAction)
// - invoke a specific action (a menu position: any non-negative number)
virtual int HandleMenuKey(int key, int visible);
enum BuiltinAction {
NO_ACTION,
REBOOT,
APPLY_UPDATE,
WIPE_DATA,
WIPE_FULL,
WIPE_CACHE,
REBOOT_RECOVERY,
REBOOT_BOOTLOADER,
SHUTDOWN,
VIEW_RECOVERY_LOGS,
MOUNT_SYSTEM,
WIPE_SYSTEM,
};
// Return the list of menu items (an array of strings,
// NULL-terminated). The menu_position passed to InvokeMenuItem
// will correspond to the indexes into this array.
virtual const char* const* GetMenuItems();
// Perform a recovery action selected from the menu.
// 'menu_position' will be the item number of the selected menu
// item, or a non-negative number returned from
// device_handle_key(). The menu will be hidden when this is
// called; implementations can call ui_print() to print
// information to the screen. If the menu position is one of the
// builtin actions, you can just return the corresponding enum
// value. If it is an action specific to your device, you
// actually perform it here and return NO_ACTION.
virtual BuiltinAction InvokeMenuItem(int menu_position);
virtual void GoHome();
static const int kNoAction = -1;
static const int kHighlightUp = -2;
static const int kHighlightDown = -3;
static const int kInvokeItem = -4;
static const int kGoBack = -5;
static const int kGoHome = -6;
static const int kRefresh = -7;
// Called before and after we do a wipe data/factory reset operation,
// either via a reboot from the main system with the --wipe_data flag,
// or when the user boots into recovery image manually and selects the
// option from the menu, to perform whatever device-specific wiping
// actions are needed.
// Return true on success; returning false from PreWipeData will prevent
// the regular wipe, and returning false from PostWipeData will cause
// the wipe to be considered a failure.
virtual bool PreWipeData() { return true; }
virtual bool PostWipeData() { return true; }
virtual bool PreWipeMedia() { return true; }
virtual bool PostWipeMedia() { return true; }
// Called before reboot
virtual char const* GetRebootReason() { return ""; }
virtual void onVolumeChanged() { ui_->onVolumeChanged(); }
private:
RecoveryUI* ui_;
std::stack<const menu*> menu_stack;
};
// The device-specific library must define this function (or the
// default one will be used, if there is no device-specific library).
// It returns the Device object that recovery should use.
Device* make_device();
#endif // _DEVICE_H
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