diff options
| -rw-r--r-- | device.cpp | 2 | ||||
| -rw-r--r-- | device.h | 152 | ||||
| -rw-r--r-- | recovery.cpp | 135 |
3 files changed, 142 insertions, 147 deletions
diff --git a/device.cpp b/device.cpp index e717dddf7..61501869e 100644 --- a/device.cpp +++ b/device.cpp @@ -60,7 +60,7 @@ Device::BuiltinAction Device::InvokeMenuItem(int menu_position) { return menu_position < 0 ? NO_ACTION : MENU_ACTIONS[menu_position]; } -int Device::HandleMenuKey(int key, int visible) { +int Device::HandleMenuKey(int key, bool visible) { if (!visible) { return kNoAction; } @@ -20,96 +20,90 @@ #include "ui.h" class Device { - public: - explicit Device(RecoveryUI* ui) : ui_(ui) { } - virtual ~Device() { } + public: + explicit Device(RecoveryUI* ui) : ui_(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 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 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); + // 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. + // + // Returns 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, bool visible); - enum BuiltinAction { - NO_ACTION = 0, - REBOOT = 1, - APPLY_SDCARD = 2, - // APPLY_CACHE was 3. - APPLY_ADB_SIDELOAD = 4, - WIPE_DATA = 5, - WIPE_CACHE = 6, - REBOOT_BOOTLOADER = 7, - SHUTDOWN = 8, - VIEW_RECOVERY_LOGS = 9, - MOUNT_SYSTEM = 10, - RUN_GRAPHICS_TEST = 11, - }; + enum BuiltinAction { + NO_ACTION = 0, + REBOOT = 1, + APPLY_SDCARD = 2, + // APPLY_CACHE was 3. + APPLY_ADB_SIDELOAD = 4, + WIPE_DATA = 5, + WIPE_CACHE = 6, + REBOOT_BOOTLOADER = 7, + SHUTDOWN = 8, + VIEW_RECOVERY_LOGS = 9, + MOUNT_SYSTEM = 10, + RUN_GRAPHICS_TEST = 11, + }; - // 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(); + // 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); + // 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 HandleMenuKey(). 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); - static const int kNoAction = -1; - static const int kHighlightUp = -2; - static const int kHighlightDown = -3; - static const int kInvokeItem = -4; + static const int kNoAction = -1; + static const int kHighlightUp = -2; + static const int kHighlightDown = -3; + static const int kInvokeItem = -4; - // 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; } + // 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 as needed. + // Returns 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; + } - private: - RecoveryUI* ui_; + virtual bool PostWipeData() { + return true; + } + + private: + RecoveryUI* ui_; }; -// 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. +// 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 diff --git a/recovery.cpp b/recovery.cpp index 618a2e8c7..b5cd3484b 100644 --- a/recovery.cpp +++ b/recovery.cpp @@ -607,54 +607,55 @@ static bool erase_volume(const char* volume) { return (result == 0); } -static int -get_menu_selection(const char* const * headers, const char* const * items, - int menu_only, int initial_selection, Device* device) { - // throw away keys pressed previously, so user doesn't - // accidentally trigger menu items. - ui->FlushKeys(); - - ui->StartMenu(headers, items, initial_selection); - int selected = initial_selection; - int chosen_item = -1; - - while (chosen_item < 0) { - int key = ui->WaitKey(); - int visible = ui->IsTextVisible(); - - if (key == -1) { // ui_wait_key() timed out - if (ui->WasTextEverVisible()) { - continue; - } else { - LOG(INFO) << "timed out waiting for key input; rebooting."; - ui->EndMenu(); - return 0; // XXX fixme - } - } +// Display a menu with the specified 'headers' and 'items'. Device specific HandleMenuKey() may +// return a positive number beyond the given range. Caller sets 'menu_only' to true to ensure only +// a menu item gets selected. 'initial_selection' controls the initial cursor location. +static int get_menu_selection(const char* const* headers, const char* const* items, bool menu_only, + int initial_selection, Device* device) { + // Throw away keys pressed previously, so user doesn't accidentally trigger menu items. + ui->FlushKeys(); + + ui->StartMenu(headers, items, initial_selection); + int selected = initial_selection; + int chosen_item = -1; + + while (chosen_item < 0) { + int key = ui->WaitKey(); + + if (key == -1) { // ui_wait_key() timed out + if (ui->WasTextEverVisible()) { + continue; + } else { + LOG(INFO) << "timed out waiting for key input; rebooting."; + ui->EndMenu(); + return 0; // XXX fixme + } + } - int action = device->HandleMenuKey(key, visible); - - if (action < 0) { - switch (action) { - case Device::kHighlightUp: - selected = ui->SelectMenu(--selected); - break; - case Device::kHighlightDown: - selected = ui->SelectMenu(++selected); - break; - case Device::kInvokeItem: - chosen_item = selected; - break; - case Device::kNoAction: - break; - } - } else if (!menu_only) { - chosen_item = action; - } + bool visible = ui->IsTextVisible(); + int action = device->HandleMenuKey(key, visible); + + if (action < 0) { + switch (action) { + case Device::kHighlightUp: + selected = ui->SelectMenu(--selected); + break; + case Device::kHighlightDown: + selected = ui->SelectMenu(++selected); + break; + case Device::kInvokeItem: + chosen_item = selected; + break; + case Device::kNoAction: + break; + } + } else if (!menu_only) { + chosen_item = action; } + } - ui->EndMenu(); - return chosen_item; + ui->EndMenu(); + return chosen_item; } // Returns the selected filename, or an empty string. @@ -699,7 +700,7 @@ static std::string browse_directory(const std::string& path, Device* device) { int chosen_item = 0; while (true) { - chosen_item = get_menu_selection(headers, entries, 1, chosen_item, device); + chosen_item = get_menu_selection(headers, entries, true, chosen_item, device); const std::string& item = zips[chosen_item]; if (chosen_item == 0) { @@ -726,7 +727,7 @@ static bool yes_no(Device* device, const char* question1, const char* question2) const char* headers[] = { question1, question2, NULL }; const char* items[] = { " No", " Yes", NULL }; - int chosen_item = get_menu_selection(headers, items, 1, 0, device); + int chosen_item = get_menu_selection(headers, items, true, 0, device); return (chosen_item == 1); } @@ -749,25 +750,25 @@ static bool wipe_data(Device* device) { } static bool prompt_and_wipe_data(Device* device) { - const char* const headers[] = { - "Boot halted, user data is corrupt", - "Wipe all user data to recover", - NULL - }; - const char* const items[] = { - "Retry boot", - "Wipe user data", - NULL - }; - for (;;) { - int chosen_item = get_menu_selection(headers, items, 1, 0, device); - if (chosen_item != 1) { - return true; // Just reboot, no wipe; not a failure, user asked for it - } - if (ask_to_wipe_data(device)) { - return wipe_data(device); - } + const char* const headers[] = { + "Boot halted, user data is corrupt", + "Wipe all user data to recover", + NULL + }; + const char* const items[] = { + "Retry boot", + "Wipe user data", + NULL + }; + for (;;) { + int chosen_item = get_menu_selection(headers, items, true, 0, device); + if (chosen_item != 1) { + return true; // Just reboot, no wipe; not a failure, user asked for it + } + if (ask_to_wipe_data(device)) { + return wipe_data(device); } + } } // Return true on success. @@ -961,7 +962,7 @@ static void choose_recovery_file(Device* device) { int chosen_item = 0; while (true) { - chosen_item = get_menu_selection(headers, menu_entries.data(), 1, chosen_item, device); + chosen_item = get_menu_selection(headers, menu_entries.data(), true, chosen_item, device); if (entries[chosen_item] == "Back") break; ui->ShowFile(entries[chosen_item].c_str()); @@ -1110,7 +1111,7 @@ prompt_and_wait(Device* device, int status) { } ui->SetProgressType(RecoveryUI::EMPTY); - int chosen_item = get_menu_selection(nullptr, device->GetMenuItems(), 0, 0, device); + int chosen_item = get_menu_selection(nullptr, device->GetMenuItems(), false, 0, device); // device-specific code may take some action here. It may // return one of the core actions handled in the switch |