view_common.h

/*******************************************************************************
*   (c) 2016 Ledger
*   (c) 2018, 2019 ZondaX GmbH
*   (c) 2019 All BNB Chain Developers
*
*  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.
********************************************************************************/
#pragma once

#include "os.h"
#include "cx.h"

#define MAX_CHARS_TITLE             32
#define MAX_CHARS_PER_KEY_LINE      64
#define MAX_CHARS_PER_VALUE_LINE    130
#define MAX_SCREEN_LINE_WIDTH       22

extern volatile char viewctl_DataKey[MAX_CHARS_PER_KEY_LINE];
extern volatile char viewctl_DataValue[MAX_CHARS_PER_VALUE_LINE];
extern volatile char viewctl_Title[MAX_SCREEN_LINE_WIDTH];
extern enum UI_DISPLAY_MODE viewctl_scrolling_mode;

enum UI_DISPLAY_MODE {
    VALUE_SCROLLING,
    KEY_SCROLLING_NO_VALUE,
    KEY_SCROLLING_SHORT_VALUE,
    PENDING
};

// Index of the currently displayed page
extern int viewctl_DetailsCurrentPage;
// Total number of displayable pages
extern int viewctl_DetailsPageCount;

// Below data is used to help split long messages that are scrolled
// into smaller chunks so they fit the memory buffer
// Index of currently displayed value chunk
extern int viewctl_ChunksIndex;
// Total number of displayable value chunks
extern int viewctl_ChunksCount;

// Delegate to update contents
typedef int (*viewctl_delegate_getData)(
        char *title, int max_title_length,
        char *key, int max_key_length,
        char *value, int max_value_length,
        int page_index,
        int chunk_index,
        int *page_count_out,
        int *chunk_count_out);

// Delegate to handle exit view event
typedef void (*viewctl_delegate_exit)(unsigned int ignored);

// Delegate to handle exit view event
typedef void (*viewctl_delegate_ready)(unsigned int ignored);

// Delegate to handle exit view event
typedef void (*viewctl_delegate_display_ux)(int page, int count);

// Delegate to handle an accept event
typedef void (*viewctl_delegate_accept)();

// Delegate to handle a reject event
typedef void (*viewctl_delegate_reject)();

extern viewctl_delegate_getData viewctl_ehGetData;
extern viewctl_delegate_ready viewctl_ehReady;
extern viewctl_delegate_exit viewctl_ehExit;
extern viewctl_delegate_display_ux viewctl_display_ux;

void viewctl_start(int start_page,
                   bool single_page,
                   viewctl_delegate_getData ehUpdate,
                   viewctl_delegate_ready ehReady,
                   viewctl_delegate_exit ehExit,
                   viewctl_delegate_display_ux func_display_ux);

void viewctl_display_page();

void submenu_left();

void submenu_right();

void menu_left();

void menu_right();