Add hex_editor from https://github.com/xMasterX/all-the-plugins

git-subtree-dir: hex_editor
git-subtree-mainline: ddca525b835d1e941874df5270e3fe690dffcd8f
git-subtree-split: 2f2649283170357577ec9a616374c13eeff6587f

hex_editor/.gitsubtree

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+https://github.com/xMasterX/all-the-plugins dev apps_source_code/hex_editor

hex_editor/README-catalog.md

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+The HEX Editor app allows you to edit files directly on your Flipper Zero without connecting using your computer or smartphone. This app might be very useful for editing NFC files, similar to the Edit Dump feature.
+
+Run the app on your Flipper Zero and select the file you want to edit. The app displays the first line of the text file. To select the desired character, use the Left and Right buttons. To replace the character, press the Ok button. To navigate through lines, use the Up and Down buttons.

hex_editor/README.md

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+# flipper-zero-hex_editor
+
+inspired by QtRoS/flipper-zero-hex-viewer
+
+Read any file line by line, and by Ok allow change char. Useful for NFC file "Edit Dump" feature with out smartphone.
+
+# NB
+* interface under construction
+* not tested on UTF-8
+* not inspected on memory leaks
+

hex_editor/application.fam

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+App(
+    appid="hex_editor",
+    name="HEX Editor",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="hex_editor_app",
+    cdefines=["APP_HEX_EDITOR"],
+    requires=[
+        "gui",
+        "dialogs",
+    ],
+    stack_size=2 * 1024,
+    order=20,
+    fap_icon="icons/edit_10px.png",
+    fap_category="Tools",
+    fap_icon_assets="icons",
+    fap_author="@dunaevai135",
+    fap_weburl="https://github.com/dunaevai135/flipper-zero-hex_editor",
+    fap_version="1.2",
+    fap_description="Read text files line by line and edit them without a computer or smartphone.",
+)

hex_editor/hex_editor.c

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+#include <stdio.h>
+#include <furi.h>
+#include <gui/gui.h>
+#include <gui/elements.h>
+#include <dialogs/dialogs.h>
+#include <input/input.h>
+#include <notification/notification_messages.h>
+
+#include <storage/storage.h>
+#include <stream/stream.h>
+#include <stream/buffered_file_stream.h>
+#include <toolbox/stream/file_stream.h>
+
+#include <hex_editor_icons.h>
+// #include <assets_icons.h>
+
+#define TAG "HexEditor"
+
+typedef struct {
+    // uint8_t file_bytes[HEX_editor_LINES_ON_SCREEN][HEX_editor_BYTES_PER_LINE];
+    uint32_t file_offset;
+    uint32_t file_read_bytes;
+    uint32_t file_size;
+    uint8_t string_offset;
+    char editable_char;
+    Stream* stream;
+    bool mode; // Print address or content
+} HexEditorModel;
+
+typedef struct {
+    HexEditorModel* model;
+    FuriMutex** mutex;
+
+    FuriMessageQueue* input_queue;
+
+    ViewPort* view_port;
+    Gui* gui;
+    Storage* storage;
+
+    FuriString* buffer;
+} HexEditor;
+
+static void draw_callback(Canvas* canvas, void* ctx) {
+    // UNUSED(ctx);
+    HexEditor* hex_editor = ctx;
+
+    canvas_clear(canvas);
+    canvas_set_font(canvas, FontPrimary);
+    canvas_draw_str(canvas, 0, 10, "Line and mode:");
+    // elements_button_right(canvas, "Info");
+
+    // // elements_string_fit_width(canvas, buffer, 100);
+    canvas_set_font(canvas, FontSecondary);
+
+    canvas_draw_str_aligned(
+        canvas,
+        0,
+        20,
+        AlignLeft,
+        AlignBottom,
+        furi_string_get_cstr(hex_editor->buffer) + hex_editor->model->string_offset);
+    // elements_scrollable_text_line(
+    //     canvas, 0, 20, 128, hex_editor->buffer, hex_editor->model->string_offset, false);
+
+    // canvas_draw_line(canvas, 3, 20, 5, 30);
+
+    canvas_draw_icon(canvas, 0, 20, &I_Pin_arrow_up_7x9);
+
+    if(hex_editor->model->mode) {
+        elements_button_left(canvas, "ASCII -");
+        elements_button_right(canvas, "ASCII +");
+    } else {
+        elements_button_left(canvas, "");
+        elements_button_right(canvas, "");
+    }
+
+    canvas_set_font(canvas, FontPrimary);
+    canvas_draw_glyph(canvas, 0, 45, '0' + hex_editor->model->mode);
+    canvas_draw_glyph(canvas, 30, 45, hex_editor->model->editable_char);
+}
+
+static void input_callback(InputEvent* input_event, void* ctx) {
+    // Проверяем, что контекст не нулевой
+    furi_assert(ctx);
+    HexEditor* hex_editor = ctx;
+
+    furi_message_queue_put(hex_editor->input_queue, input_event, 100);
+}
+
+static HexEditor* hex_editor_alloc() {
+    HexEditor* instance = malloc(sizeof(HexEditor));
+
+    instance->model = malloc(sizeof(HexEditorModel));
+    memset(instance->model, 0x0, sizeof(HexEditorModel));
+
+    instance->model->editable_char = ' ';
+
+    instance->mutex = furi_mutex_alloc(FuriMutexTypeNormal);
+
+    instance->input_queue = furi_message_queue_alloc(8, sizeof(InputEvent));
+
+    instance->view_port = view_port_alloc();
+    view_port_draw_callback_set(instance->view_port, draw_callback, instance);
+    view_port_input_callback_set(instance->view_port, input_callback, instance);
+
+    instance->gui = furi_record_open(RECORD_GUI);
+    gui_add_view_port(instance->gui, instance->view_port, GuiLayerFullscreen);
+
+    instance->storage = furi_record_open(RECORD_STORAGE);
+
+    instance->buffer = furi_string_alloc();
+
+    return instance;
+}
+
+static void hex_editor_free(HexEditor* instance) {
+    furi_record_close(RECORD_STORAGE);
+
+    gui_remove_view_port(instance->gui, instance->view_port);
+    furi_record_close(RECORD_GUI);
+    view_port_free(instance->view_port);
+
+    furi_message_queue_free(instance->input_queue);
+
+    furi_mutex_free(instance->mutex);
+
+    if(instance->model->stream) buffered_file_stream_close(instance->model->stream);
+
+    furi_string_free(instance->buffer);
+
+    free(instance->model);
+    free(instance);
+}
+
+static bool hex_editor_open_file(HexEditor* hex_editor, const char* file_path) {
+    furi_assert(hex_editor);
+    furi_assert(file_path);
+
+    hex_editor->model->stream = buffered_file_stream_alloc(hex_editor->storage);
+    bool isOk = true;
+
+    do {
+        if(!buffered_file_stream_open(
+               hex_editor->model->stream, file_path, FSAM_READ_WRITE, FSOM_OPEN_EXISTING)) {
+            FURI_LOG_E(TAG, "Unable to open stream: %s", file_path);
+            isOk = false;
+            break;
+        };
+
+        hex_editor->model->file_size = stream_size(hex_editor->model->stream);
+    } while(false);
+
+    return isOk;
+}
+
+// static bool hex_editor_read_file(HexEditor* hex_editor) {
+//     furi_assert(hex_editor);
+//     furi_assert(hex_editor->model->stream);
+//     // furi_assert(hex_editor->model->file_offset % hex_editor_BYTES_PER_LINE == 0);
+
+//     memset(hex_editor->model->file_bytes, 0x0, hex_editor_BUF_SIZE);
+//     bool isOk = true;
+
+//     do {
+//         uint32_t offset = hex_editor->model->file_offset;
+//         if(!stream_seek(hex_editor->model->stream, offset, true)) {
+//             FURI_LOG_E(TAG, "Unable to seek stream");
+//             isOk = false;
+//             break;
+//         }
+
+//         hex_editor->model->file_read_bytes = stream_read(
+//             hex_editor->model->stream,
+//             (uint8_t*)hex_editor->model->file_bytes,
+//             hex_editor_BUF_SIZE);
+//     } while(false);
+
+//     return isOk;
+// }
+
+int32_t hex_editor_app(void* p) {
+    UNUSED(p);
+
+    HexEditor* hex_editor = hex_editor_alloc();
+
+    FuriString* file_path;
+    file_path = furi_string_alloc();
+
+    // furi_string_printf(
+    //     hex_editor->buffer,
+    //     "qqqqq1231231232343454565676urtfgsdfascesc\nasdqwe\new ra sssssssssssssssssssssssssqqqqqqqqqqq1231231232343454565676urtfgsdfascesc\nq2e");
+
+    do {
+        if(p && strlen(p)) {
+            furi_string_set(file_path, (const char*)p);
+        } else {
+            furi_string_set(file_path, "/any");
+
+            DialogsFileBrowserOptions browser_options;
+            dialog_file_browser_set_basic_options(&browser_options, "*", &I_edit_10px);
+            browser_options.hide_ext = false;
+
+            DialogsApp* dialogs = furi_record_open(RECORD_DIALOGS);
+            bool res = dialog_file_browser_show(dialogs, file_path, file_path, &browser_options);
+
+            furi_record_close(RECORD_DIALOGS);
+            if(!res) {
+                FURI_LOG_I(TAG, "No file selected");
+                break;
+            }
+        }
+
+        FURI_LOG_I(TAG, "File selected: %s", furi_string_get_cstr(file_path));
+
+        if(!hex_editor_open_file(hex_editor, furi_string_get_cstr(file_path))) break;
+
+        if(!stream_read_line(hex_editor->model->stream, hex_editor->buffer)) {
+            FURI_LOG_T(TAG, "No keys left in dict");
+            break;
+        }
+
+        InputEvent event;
+        int8_t off;
+        while(1) {
+            // Выбираем событие из очереди в переменную event (ждем бесконечно долго, если очередь пуста)
+            // и проверяем, что у нас получилось это сделать
+            furi_check(
+                furi_message_queue_get(hex_editor->input_queue, &event, FuriWaitForever) ==
+                FuriStatusOk);
+
+            // Если нажата кнопка "назад", то выходим из цикла, а следовательно и из приложения
+            if(event.type == InputTypeShort || event.type == InputTypeRepeat) {
+                if(!hex_editor->model->mode) {
+                    off = 1;
+                    if(event.type == InputTypeRepeat) {
+                        off = 2;
+                    }
+                    if(event.key == InputKeyRight) {
+                        hex_editor->model->string_offset += off;
+                        if(hex_editor->model->string_offset >=
+                           furi_string_size(hex_editor->buffer)) {
+                            // dengeros
+                            hex_editor->model->string_offset -=
+                                furi_string_size(hex_editor->buffer);
+                        }
+                    }
+                    if(event.key == InputKeyLeft) {
+                        if(hex_editor->model->string_offset - off < 0) {
+                            // dengeros
+                            hex_editor->model->string_offset +=
+                                furi_string_size(hex_editor->buffer);
+                        }
+                        hex_editor->model->string_offset -= off;
+                    }
+                    if(event.key == InputKeyDown) {
+                        hex_editor->model->string_offset = 0;
+                        if(!stream_read_line(hex_editor->model->stream, hex_editor->buffer)) {
+                            FURI_LOG_T(TAG, "No keys left in dict");
+                        }
+                    }
+                    if(event.key == InputKeyUp) {
+                        hex_editor->model->string_offset = 0;
+                        // TODO asert
+                        if(!stream_seek(hex_editor->model->stream, -1, StreamOffsetFromCurrent)) {
+                            FURI_LOG_E(TAG, "Unable to seek stream");
+                            break;
+                        }
+                        // NOT work on first line
+                        stream_seek_to_char(
+                            hex_editor->model->stream, '\n', StreamDirectionBackward);
+
+                        // if(!stream_seek(hex_editor->model->stream, -1, StreamOffsetFromCurrent)) {
+                        //     FURI_LOG_E(TAG, "Unable to seek stream");
+                        //     break;
+                        // }
+                        if(!stream_seek_to_char(
+                               hex_editor->model->stream, '\n', StreamDirectionBackward)) {
+                            stream_rewind(hex_editor->model->stream);
+                        } else {
+                            if(!stream_seek(
+                                   hex_editor->model->stream, 1, StreamOffsetFromCurrent)) {
+                                FURI_LOG_E(TAG, "Unable to seek stream");
+                                break;
+                            }
+                        }
+
+                        if(!stream_read_line(hex_editor->model->stream, hex_editor->buffer)) {
+                            FURI_LOG_T(TAG, "No keys left in dict");
+                            break;
+                        }
+                    }
+
+                    if(event.key == InputKeyOk) {
+                        hex_editor->model->editable_char = furi_string_get_char(
+                            hex_editor->buffer, hex_editor->model->string_offset);
+
+                        hex_editor->model->mode = 1;
+                    }
+                } else {
+                    off = 1;
+                    if(event.type == InputTypeRepeat) {
+                        off = 4;
+                    }
+                    if(event.key == InputKeyRight) {
+                        hex_editor->model->editable_char += off;
+                    }
+                    if(event.key == InputKeyLeft) {
+                        hex_editor->model->editable_char -= off;
+                    }
+
+                    if(event.key == InputKeyOk) {
+                        if(!stream_seek(hex_editor->model->stream, -1, StreamOffsetFromCurrent)) {
+                            FURI_LOG_E(TAG, "Unable to seek stream");
+                            break;
+                        }
+                        stream_seek_to_char(
+                            hex_editor->model->stream, '\n', StreamDirectionBackward);
+                        stream_seek(
+                            hex_editor->model->stream,
+                            hex_editor->model->string_offset + 1,
+                            StreamOffsetFromCurrent);
+
+                        stream_write_char(
+                            hex_editor->model->stream, hex_editor->model->editable_char);
+
+                        hex_editor->model->editable_char = ' ';
+
+                        hex_editor->model->mode = 0;
+
+                        stream_seek_to_char(
+                            hex_editor->model->stream, '\n', StreamDirectionBackward);
+
+                        if(!stream_seek(hex_editor->model->stream, 1, StreamOffsetFromCurrent)) {
+                            FURI_LOG_E(TAG, "Unable to seek stream");
+                            break;
+                        }
+
+                        if(!stream_read_line(hex_editor->model->stream, hex_editor->buffer)) {
+                            FURI_LOG_T(TAG, "No keys left in dict");
+                            break;
+                        }
+                    }
+                }
+            }
+            if(event.key == InputKeyBack) {
+                break;
+            }
+            // ?
+            view_port_update(hex_editor->view_port);
+        }
+    } while(false);
+
+    furi_string_free(file_path);
+    hex_editor_free(hex_editor);
+
+    return 0;
+}