FlippyPass/project/backend/ui.c

// Header
#include "ui.h"

// Constants
#define MAX_OPTIONS 4

// Structures
/* Scenes */
typedef enum {
    FP_Scene_MainMenu,
    FP_Scene_Overview,
    FP_Scene_View,
    FP_Scene_Cred,
    FP_Scene_Send,
    FP_Scene_Create,
    FP_Scene_Type,
    FP_Scene_Archive,
    FP_Scene_About,
    FP_Scene_Count  // Last Index, says how many scenes there are
} FP_Scene;

/* Types of Views */
typedef enum { FP_View_VariableItemList, FP_View_Submenu, FP_View_TextBox, FP_View_TextInput, FP_View_Dialog, FP_View_Popup } FP_View;

/* Scene events */
typedef enum { 
    FP_Scene_MainMenu_Event_View,
    FP_Scene_MainMenu_Event_Create,
    FP_Scene_MainMenu_Event_Archive,
    FP_Scene_MainMenu_Event_About
} FP_Scene_MainMenu_Event;
typedef enum {
    FP_Scene_View_Event_Username,
    FP_Scene_View_Event_Password,
    FP_Scene_View_Event_BadUSB
} FP_Scene_View_Event;
typedef enum {
    FP_Scene_Create_Event_Name,
    FP_Scene_Create_Event_Username,
    FP_Scene_Create_Event_Password,
    FP_Scene_Create_Event_Done
} FP_Scene_Create_Event;

// Page functions
void FP_Scene_Callback_Default(void* context, uint32_t index) {
    // Setting context
    FP_App* app = context;

    // Sending it to the scene manager
    scene_manager_handle_custom_event(app->scene_manager, index);
}
void FP_Scene_Callback_Dialog(DialogExResult result, void* context) {
    // Setting context
    FP_App* app = context;

    // Sending it to the scene manager
    scene_manager_handle_custom_event(app->scene_manager, result); 
}
void FP_Scene_Callback_Type(void* context) {
    // Setting context
    FP_App* app = context;

    // DEBUG
    FURI_LOG_D(TAG, "Typed: %s", app->temp);

    // Going back a page
    scene_manager_previous_scene(app->scene_manager);
}

void FP_Scene_Enter_MainMenu(void* context) {
    // Setting context
    FP_App* app = context;

    // Reset menu for next draw
    submenu_reset(app->submenu);

    // Adding items to menu
    submenu_add_item(
        app->submenu,
        "View Passwords",
        FP_Scene_MainMenu_Event_View,
        FP_Scene_Callback_Default,
        app
    );
    submenu_add_item(
        app->submenu,
        "Create Password",
        FP_Scene_MainMenu_Event_Create,
        FP_Scene_Callback_Default,
        app
    );
    submenu_add_item(
        app->submenu,
        "Archive Actions",
        FP_Scene_MainMenu_Event_Archive,
        FP_Scene_Callback_Default,
        app
    );
    submenu_add_item(
        app->submenu,
        "About",
        FP_Scene_MainMenu_Event_About,
        FP_Scene_Callback_Default,
        app
    );

    // Switching to current view
    view_dispatcher_switch_to_view(app->view_dispatcher, FP_View_Submenu);
}
void FP_Scene_Enter_Overview(void* context) {
    // Setting context
    FP_App* app = context;

    // Reset menu
    submenu_reset(app->submenu);

    // Adding menu items
    for (int i = 0; i < app->manager->count; i++) {
        submenu_add_item(
            app->submenu,
            app->manager->names[i],
            i,
            FP_Scene_Callback_Default,
            app
        );
    }

    // Sending view to Flipper
    view_dispatcher_switch_to_view(app->view_dispatcher, FP_View_Submenu);
}
void FP_Scene_Enter_View(void* context) {
    // Setting context
    FP_App* app = context;

    // Freeing Dialog
    submenu_reset(app->submenu);

    // Adding some content
    submenu_add_item(
        app->submenu,
        "View Username",
        FP_Scene_View_Event_Username,
        FP_Scene_Callback_Default,
        app
    );
    submenu_add_item(
        app->submenu,
        "View Password",
        FP_Scene_View_Event_Password,
        FP_Scene_Callback_Default,
        app
    );
    submenu_add_item(
        app->submenu,
        "BadUSB",
        FP_Scene_View_Event_BadUSB,
        FP_Scene_Callback_Default,
        app
    );

    // Sending view to Flipper
    view_dispatcher_switch_to_view(app->view_dispatcher, FP_View_Submenu);
}
void FP_Scene_Enter_Cred(void* context) {
    // Set context
    FP_App* app = context;

    // Reset view
    text_box_reset(app->textbox);

    // Setting text
    if (!strcmp(app->temp, "Username")) {
        text_box_set_text(
            app->textbox,
            app->manager->current->user
        );
    } else {
        text_box_set_text(
            app->textbox,
            app->manager->current->phrase
        );
    }

    // Send view to Flipper
    view_dispatcher_switch_to_view(app->view_dispatcher, FP_View_TextBox);
}
void FP_Scene_Enter_Send(void* context) {
    // Setting context
    FP_App* app = context;

    // Reset view
    dialog_ex_reset(app->dialog);

    // Adding dialog content
    dialog_ex_set_header(
        app->dialog,
        "Send via BadUSB",
        0,0,
        AlignLeft,
        AlignTop
    );
    dialog_ex_set_text(
        app->dialog,
        "This will type out either the Username or Password using BadUSB",
        5,15,
        AlignLeft,
        AlignTop
    );
    dialog_ex_set_left_button_text(
        app->dialog,
        "Username"
    );
    dialog_ex_set_right_button_text(
        app->dialog,
        "Password"
    );

    // Setting context and callback
    dialog_ex_set_result_callback(app->dialog, FP_Scene_Callback_Dialog);
    dialog_ex_set_context(app->dialog, app);

    // Send view to Flipper
    view_dispatcher_switch_to_view(app->view_dispatcher, FP_View_Dialog);
}
void FP_Scene_Enter_Create(void* context) {
    // Setting context
    FP_App* app = context;

    // Reset page
    submenu_reset(app->submenu);

    // Checking if we typed something before
    if (app->temp) {
        // Boolean
        bool is_field = true;

        // Checking if it's any of the following:
        if (!strcmp(app->temp, "Username")) {is_field = false;}
        if (!strcmp(app->temp, "Password")) {is_field = false;}

        // We're good!
        if(is_field) {
            // Did we already start a password?
            if (!app->manager->new) {
                app->manager->new = malloc(sizeof(Password));
            }

            // Checking what we selected
            switch (app->selection) {
            case 0: // Name
                // Does name already exist?
                if (app->manager->new->name) {
                    free(app->manager->new->name);
                }

                // Copying it
                app->manager->new->name = malloc(sizeof(char*));
                strcpy(app->manager->new->name, app->temp);

                break;
            case 1: // Username
                // Does user already exist?
                if (app->manager->new->user) {
                    free(app->manager->new->user);
                }

                // Copying it
                app->manager->new->user = malloc(sizeof(char*));
                strcpy(app->manager->new->user, app->temp);
                break;
            case 2: // Password
                // Does phrase already exist?
                if (app->manager->new->phrase) {
                    free(app->manager->new->phrase);
                }

                // Copying it
                app->manager->new->phrase = malloc(sizeof(char*));
                strcpy(app->manager->new->phrase, app->temp);
                break;
            }
        }

        // Freeing temp
        free(app->temp);
    }

    // Options
    submenu_add_item(
        app->submenu,
        "Set Name",
        FP_Scene_Create_Event_Name,
        FP_Scene_Callback_Default,
        app
    );
    submenu_add_item(
        app->submenu,
        "Set Username",
        FP_Scene_Create_Event_Username,
        FP_Scene_Callback_Default,
        app
    );
    submenu_add_item(
        app->submenu,
        "Set Password",
        FP_Scene_Create_Event_Password,
        FP_Scene_Callback_Default,
        app
    );
    submenu_add_item(
        app->submenu,
        "Finish",
        FP_Scene_Create_Event_Done,
        FP_Scene_Callback_Default,
        app
    );

    // Send view to Flipper
    view_dispatcher_switch_to_view(app->view_dispatcher, FP_View_Submenu);
}
void FP_Scene_Enter_Type(void* context) {
    // Set Context
    FP_App* app = context;
    
    // Reset view
    text_input_reset(app->textinput);

    // Creating temp string
    app->temp = malloc(sizeof(char*));

    // Setting stuff
    text_input_set_result_callback(
        app->textinput,
        FP_Scene_Callback_Type,
        app,
        app->temp,
        255,
        true
    );

    // Send view to Flipper
    view_dispatcher_switch_to_view(app->view_dispatcher, FP_View_TextInput);
}

void FP_Scene_Exit_Default(void* context) {
    // Setting context
    FP_App* app = context;

    // Reset menu
    submenu_reset(app->submenu);
}
void FP_Scene_Exit_Cred(void* context) {
    // Setting context
    FP_App* app = context;

    // Free the temp string
    free(app->temp);
    
    // Reset menu
    dialog_ex_reset(app->dialog);
}

bool FP_Scene_Event_MainMenu(void* context, SceneManagerEvent event) {
    // Setting context
    FP_App* app = context;
    bool consumed = false;

    // Switching based on event
    if (event.type == SceneManagerEventTypeCustom) {
        // We consumed it
        consumed = true;

        // What to do?
        switch (event.event) {
        case FP_Scene_MainMenu_Event_About:
            scene_manager_next_scene(app->scene_manager, FP_Scene_About);
            break;
        case FP_Scene_MainMenu_Event_View:
            scene_manager_next_scene(app->scene_manager, FP_Scene_Overview);
            break;
        case FP_Scene_MainMenu_Event_Create:
            scene_manager_next_scene(app->scene_manager, FP_Scene_Create);
            break;
        default:
            break;
        }
    } else {
        consumed = false;
    }

    // Return result
    return consumed;
}
bool FP_Scene_Event_Overview(void* context, SceneManagerEvent event) {
    // Setting context
    FP_App* app = context;
    bool consumed = false;

    // Switching based on event
    if (event.type == SceneManagerEventTypeCustom) {
        // We consumed it
        consumed = true;

        // Loading password
        manager_loadpass(app->manager, app->manager->names[event.event]);

        // Is the current password a fake?
        if (!app->manager->current) {
            FURI_LOG_E(TAG, "Password is NULL!");
            furi_crash();
        }

        // Switch to password view screen
        scene_manager_next_scene(app->scene_manager, FP_Scene_View);
    } else {
        consumed = false;
    }

    // Return result
    return consumed;
}
bool FP_Scene_Event_View(void* context, SceneManagerEvent event) {
    // Setting context
    FP_App* app = context;
    bool consumed = false;

    // Switching based on event
    if (event.type == SceneManagerEventTypeCustom) {
        // We consumed it
        consumed = true;

        // What did we press?
        switch (event.event) {
        case FP_Scene_View_Event_Username:
            app->temp = malloc(sizeof(char*));
            app->temp = "Username";
            scene_manager_next_scene(app->scene_manager, FP_Scene_Cred);
            break;
        case FP_Scene_View_Event_Password:
            app->temp = malloc(sizeof(char*));
            app->temp = "Password";
            scene_manager_next_scene(app->scene_manager, FP_Scene_Cred);
            break;
        case FP_Scene_View_Event_BadUSB:
            scene_manager_next_scene(app->scene_manager, FP_Scene_Send);
            break;
        default:
            break;
        }
    } else {
        consumed = false;
    }

    // Return result
    return consumed;
}
bool FP_Scene_Event_Cred(void* context, SceneManagerEvent event) {
    // Setting context
    FP_App* app = context;
    bool consumed = false;

    // Switching based on event
    if (event.type == SceneManagerEventTypeCustom) {
        // We consumed it
        consumed = true;

        // Debug log about what we pressed
        FURI_LOG_D(TAG, "Pressed %li", event.event);

        UNUSED(app);

        // What to do?
        switch (event.event) {
        default:
            break;
        }
    } else {
        consumed = false;
    }

    // Return result
    return consumed;
}
bool FP_Scene_Event_Send(void* context, SceneManagerEvent event) {
    // Setting context
    FP_App* app = context;
    bool consumed = false;

    // Switching based on event
    if (event.type == SceneManagerEventTypeCustom) {
        // We consumed it
        consumed = true;

        UNUSED(app);

        // What to do?
        switch (event.event) {
        default:
            break;
        }
    } else {
        consumed = false;
    }

    // Return result
    return consumed;
}
bool FP_Scene_Event_Create(void* context, SceneManagerEvent event) {
    // Setting context
    FP_App* app = context;
    bool consumed = false;

    // Switching based on event
    if (event.type == SceneManagerEventTypeCustom) {
        // We consumed it
        consumed = true;

        // What to do?
        switch (event.event) {
        case FP_Scene_Create_Event_Name:
        case FP_Scene_Create_Event_Username:
        case FP_Scene_Create_Event_Password:
            // Set selection
            app->selection = event.event;

            // Switch to keyboard scene
            scene_manager_next_scene(app->scene_manager, FP_Scene_Type);
            break;
        case FP_Scene_Create_Event_Done:
            // Save the password
            manager_savepass(app->manager->new);

            // Reload manager
            manager_free(app->manager);
            app->manager = manager_init();

            // Switching scenes
            scene_manager_previous_scene(app->scene_manager);
            break;
        default:
            break;
        }
    } else {
        consumed = false;
    }

    // Return result
    return consumed;
}
bool FP_Scene_Event_Type(void* context, SceneManagerEvent event) {
    // Return result
    UNUSED(context);
    return event.type == SceneManagerEventTypeCustom;
}

/* Handlers */
void (*const FP_Scene_Enter_Handlers[])(void*) = {
    FP_Scene_Enter_MainMenu,
    FP_Scene_Enter_Overview,
    FP_Scene_Enter_View,
    FP_Scene_Enter_Cred,
    FP_Scene_Enter_Send,
    FP_Scene_Enter_Create,
    FP_Scene_Enter_Type
};
bool (*const FP_Scene_Event_Handlers[])(void*, SceneManagerEvent) = {
    FP_Scene_Event_MainMenu,
    FP_Scene_Event_Overview,
    FP_Scene_Event_View,
    FP_Scene_Event_Cred,
    FP_Scene_Event_Send,
    FP_Scene_Event_Create,
    FP_Scene_Event_Type
};
void (*const FP_Scene_Exit_Handlers[])(void*) = {
    FP_Scene_Exit_Default,
    FP_Scene_Exit_Default,
    FP_Scene_Exit_Default,
    FP_Scene_Exit_Cred,
    FP_Scene_Exit_Default,
    FP_Scene_Exit_Default,
    FP_Scene_Exit_Default
};

/* Event Handlers */
const SceneManagerHandlers FP_SceneEventHandlers = {
    .on_enter_handlers = FP_Scene_Enter_Handlers,
    .on_event_handlers = FP_Scene_Event_Handlers,
    .on_exit_handlers = FP_Scene_Exit_Handlers,
    .scene_num = FP_Scene_Count};

// Functions - Private
bool FP_SceneManager_Callback_CustomEvent(void* context, uint32_t custom_event) {
    // Is our context okay?
    furi_assert(context);

    // Setting context
    FP_App* app = context;

    // Return event
    return scene_manager_handle_custom_event(app->scene_manager, custom_event);
}
bool FP_SceneManager_Callback_Navigation(void* context) {
    // Is our context okay?
    furi_assert(context);

    // Setting context
    FP_App* app = context;

    // Return navigation
    return scene_manager_handle_back_event(app->scene_manager);
}

// Constructors
FP_App* fp_app_init() {
    // Allocate memory for new app variable
    FP_App* result = malloc(sizeof(FP_App));

    // Initilize the manager
    result->manager = manager_init();

    // Init Scene Manager
    result->scene_manager = scene_manager_alloc(&FP_SceneEventHandlers, result);

    // Init View Dispatcher
    result->view_dispatcher = view_dispatcher_alloc();
    view_dispatcher_enable_queue(result->view_dispatcher);

    // Allocating all types of views
    result->varitemlist = variable_item_list_alloc();
    result->textinput = text_input_alloc();
    result->dialog = dialog_ex_alloc();
    result->submenu = submenu_alloc();
    result->textbox = text_box_alloc();
    result->popup = popup_alloc();

    // Event handling
    view_dispatcher_set_event_callback_context(result->view_dispatcher, result);
    view_dispatcher_set_custom_event_callback(result->view_dispatcher, FP_SceneManager_Callback_CustomEvent);
    view_dispatcher_set_navigation_event_callback(result->view_dispatcher, FP_SceneManager_Callback_Navigation);

    // Adding views to dispatcher
    view_dispatcher_add_view(result->view_dispatcher, FP_View_VariableItemList, variable_item_list_get_view(result->varitemlist));
    view_dispatcher_add_view(result->view_dispatcher, FP_View_TextInput, text_input_get_view(result->textinput));
    view_dispatcher_add_view(result->view_dispatcher, FP_View_TextBox, text_box_get_view(result->textbox));
    view_dispatcher_add_view(result->view_dispatcher, FP_View_Dialog, dialog_ex_get_view(result->dialog));
    view_dispatcher_add_view(result->view_dispatcher, FP_View_Submenu, submenu_get_view(result->submenu));
    view_dispatcher_add_view(result->view_dispatcher, FP_View_Popup, popup_get_view(result->popup));

    // Return app
    return result;
}

// Functions
void fp_app_run(FP_App* app) {
    // Creating GUI
    Gui* gui = furi_record_open(RECORD_GUI);

    // Attaching view dispatcher to GUI
    view_dispatcher_attach_to_gui(app->view_dispatcher, gui, ViewDispatcherTypeFullscreen);

    // Starting scene
    scene_manager_next_scene(app->scene_manager, FP_Scene_MainMenu);

    // Start view dispatcher
    view_dispatcher_run(app->view_dispatcher);

    /* Post Application */
    furi_record_close(RECORD_GUI);
}
void fp_app_free(FP_App* app) {
    // Freeing stuff from memory
    manager_free(app->manager);
    scene_manager_free(app->scene_manager);
    view_dispatcher_remove_view(app->view_dispatcher, FP_View_VariableItemList);
    view_dispatcher_remove_view(app->view_dispatcher, FP_View_TextInput);
    view_dispatcher_remove_view(app->view_dispatcher, FP_View_Submenu);
    view_dispatcher_remove_view(app->view_dispatcher, FP_View_TextBox);
    view_dispatcher_remove_view(app->view_dispatcher, FP_View_Dialog);
    view_dispatcher_remove_view(app->view_dispatcher, FP_View_Popup);
    view_dispatcher_free(app->view_dispatcher);
    variable_item_list_free(app->varitemlist);
    text_input_free(app->textinput);
    dialog_ex_free(app->dialog);
    text_box_free(app->textbox);
    submenu_free(app->submenu);
    popup_free(app->popup);
    free(app->temp);
    free(app);
}