475 lines
15 KiB
C
475 lines
15 KiB
C
#include "file_select.h"
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#include <gui/elements.h>
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#include <m-string.h>
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#include <storage/storage.h>
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#define FILENAME_COUNT 4
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struct FileSelect {
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// public
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View* view;
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Storage* fs_api;
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const char* path;
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const char* extension;
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bool init_completed;
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FileSelectCallback callback;
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void* context;
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char* buffer;
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uint8_t buffer_size;
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};
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typedef struct {
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string_t filename[FILENAME_COUNT];
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uint8_t position;
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uint16_t first_file_index;
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uint16_t file_count;
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} FileSelectModel;
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bool file_select_fill_strings(FileSelect* file_select);
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bool file_select_fill_count(FileSelect* file_select);
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static bool file_select_init_inner(FileSelect* file_select);
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static void file_select_draw_callback(Canvas* canvas, void* _model) {
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FileSelectModel* model = _model;
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string_t string_buff;
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const uint8_t item_height = 16;
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const uint8_t item_width = 123;
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const uint8_t text_max_width = 115;
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canvas_clear(canvas);
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canvas_set_font(canvas, FontSecondary);
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if(model->file_count) {
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for(uint8_t i = 0; i < MIN(FILENAME_COUNT, model->file_count); i++) {
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if(i == model->position) {
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canvas_set_color(canvas, ColorBlack);
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canvas_draw_box(canvas, 0, (i * item_height) + 1, item_width, item_height - 2);
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canvas_set_color(canvas, ColorWhite);
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canvas_draw_dot(canvas, 0, (i * item_height) + 1);
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canvas_draw_dot(canvas, 0, (i * item_height) + item_height - 2);
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canvas_draw_dot(canvas, item_width - 1, (i * item_height) + 1);
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canvas_draw_dot(canvas, item_width - 1, (i * item_height) + item_height - 2);
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} else {
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canvas_set_color(canvas, ColorBlack);
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}
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string_init_set(string_buff, model->filename[i]);
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elements_string_fit_width(canvas, string_buff, text_max_width);
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canvas_draw_str(
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canvas, 6, (i * item_height) + item_height - 4, string_get_cstr(string_buff));
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string_clear(string_buff);
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}
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} else {
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canvas_draw_str(canvas, 6, item_height, "Empty folder");
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}
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elements_scrollbar(canvas, model->first_file_index + model->position, model->file_count);
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}
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static bool file_select_input_callback(InputEvent* event, void* context) {
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FileSelect* file_select = (FileSelect*)context;
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bool consumed = false;
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if(event->type == InputTypeShort) {
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if(!file_select->init_completed) {
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if(!file_select_init_inner(file_select)) {
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file_select->callback(false, file_select->context);
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}
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} else if(event->key == InputKeyUp) {
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with_view_model(
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file_select->view, (FileSelectModel * model) {
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if(model->position == 0) {
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if(model->first_file_index == 0) {
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// wrap
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int16_t max_first_file_index = model->file_count - FILENAME_COUNT;
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model->position = MIN(FILENAME_COUNT - 1, model->file_count - 1);
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model->first_file_index =
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max_first_file_index < 0 ? 0 : max_first_file_index;
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} else {
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model->first_file_index--;
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}
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} else if(model->position == 1) {
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if(model->first_file_index == 0) {
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model->position--;
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} else {
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model->first_file_index--;
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}
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} else {
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model->position--;
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}
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return true;
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});
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consumed = true;
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if(!file_select_fill_strings(file_select)) {
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file_select->callback(false, file_select->context);
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}
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} else if(event->key == InputKeyDown) {
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with_view_model(
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file_select->view, (FileSelectModel * model) {
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uint16_t max_first_file_index = model->file_count > FILENAME_COUNT ?
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model->file_count - FILENAME_COUNT :
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0;
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if(model->position >= MIN(FILENAME_COUNT - 1, model->file_count - 1)) {
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if(model->first_file_index >= max_first_file_index) {
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// wrap
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model->position = 0;
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model->first_file_index = 0;
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} else {
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model->first_file_index++;
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}
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} else if(model->position >= (FILENAME_COUNT - 2)) {
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if(model->first_file_index >= max_first_file_index) {
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model->position++;
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} else {
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model->first_file_index++;
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}
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} else {
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model->position++;
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}
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return true;
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});
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consumed = true;
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if(!file_select_fill_strings(file_select)) {
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file_select->callback(false, file_select->context);
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}
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} else if(event->key == InputKeyOk) {
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if(file_select->callback != NULL) {
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size_t files = 0;
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if(file_select->buffer) {
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with_view_model(
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file_select->view, (FileSelectModel * model) {
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files = model->file_count;
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strlcpy(
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file_select->buffer,
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string_get_cstr(model->filename[model->position]),
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file_select->buffer_size);
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return false;
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});
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};
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if(files > 0) {
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file_select->callback(true, file_select->context);
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}
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}
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consumed = true;
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}
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}
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return consumed;
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}
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static bool file_select_init_inner(FileSelect* file_select) {
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bool result = false;
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if(file_select->path && file_select->extension && file_select->fs_api) {
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if(file_select_fill_count(file_select)) {
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if(file_select_fill_strings(file_select)) {
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file_select->init_completed = true;
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result = true;
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}
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}
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}
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return result;
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}
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FileSelect* file_select_alloc() {
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FileSelect* file_select = furi_alloc(sizeof(FileSelect));
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file_select->view = view_alloc();
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file_select->fs_api = furi_record_open("storage");
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view_set_context(file_select->view, file_select);
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view_allocate_model(file_select->view, ViewModelTypeLockFree, sizeof(FileSelectModel));
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view_set_draw_callback(file_select->view, file_select_draw_callback);
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view_set_input_callback(file_select->view, file_select_input_callback);
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with_view_model(
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file_select->view, (FileSelectModel * model) {
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for(uint8_t i = 0; i < FILENAME_COUNT; i++) {
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string_init(model->filename[i]);
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}
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model->first_file_index = 0;
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model->file_count = 0;
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return false;
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});
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return file_select;
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}
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void file_select_free(FileSelect* file_select) {
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furi_assert(file_select);
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with_view_model(
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file_select->view, (FileSelectModel * model) {
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for(uint8_t i = 0; i < FILENAME_COUNT; i++) {
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string_clear(model->filename[i]);
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}
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return false;
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});
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view_free(file_select->view);
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free(file_select);
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furi_record_close("storage");
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}
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View* file_select_get_view(FileSelect* file_select) {
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furi_assert(file_select);
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return file_select->view;
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}
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void file_select_set_callback(FileSelect* file_select, FileSelectCallback callback, void* context) {
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file_select->context = context;
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file_select->callback = callback;
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}
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void file_select_set_filter(FileSelect* file_select, const char* path, const char* extension) {
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furi_assert(file_select);
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file_select->path = path;
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file_select->extension = extension;
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}
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void file_select_set_result_buffer(FileSelect* file_select, char* buffer, uint8_t buffer_size) {
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file_select->buffer = buffer;
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file_select->buffer_size = buffer_size;
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if(file_select->buffer) {
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strlcpy(file_select->buffer, "", file_select->buffer_size);
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}
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}
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bool file_select_init(FileSelect* file_select) {
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if(!file_select_init_inner(file_select)) {
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file_select->callback(false, file_select->context);
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return false;
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} else {
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return true;
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}
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}
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static bool filter_file(FileSelect* file_select, FileInfo* file_info, char* name) {
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bool result = false;
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if(!(file_info->flags & FSF_DIRECTORY)) {
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if(strcmp(file_select->extension, "*") == 0) {
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result = true;
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} else if(strstr(name, file_select->extension) != NULL) {
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result = true;
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}
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}
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return result;
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}
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bool file_select_fill_strings(FileSelect* file_select) {
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furi_assert(file_select);
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furi_assert(file_select->fs_api);
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furi_assert(file_select->path);
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furi_assert(file_select->extension);
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FileInfo file_info;
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File* directory = storage_file_alloc(file_select->fs_api);
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uint8_t string_counter = 0;
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uint16_t file_counter = 0;
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const uint8_t name_length = 100;
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char* name = furi_alloc(name_length);
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uint16_t first_file_index = 0;
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with_view_model(
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file_select->view, (FileSelectModel * model) {
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first_file_index = model->first_file_index;
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return false;
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});
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if(!storage_dir_open(directory, file_select->path)) {
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storage_dir_close(directory);
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storage_file_free(directory);
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free(name);
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return true;
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}
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while(1) {
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if(!storage_dir_read(directory, &file_info, name, name_length)) {
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break;
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}
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if(storage_file_get_error(directory) == FSE_OK) {
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if(filter_file(file_select, &file_info, name)) {
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if(file_counter >= first_file_index) {
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with_view_model(
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file_select->view, (FileSelectModel * model) {
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string_set_str(model->filename[string_counter], name);
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if(strcmp(file_select->extension, "*") != 0) {
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string_replace_all_str(
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model->filename[string_counter], file_select->extension, "");
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}
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return true;
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});
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string_counter++;
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if(string_counter >= FILENAME_COUNT) {
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break;
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}
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}
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file_counter++;
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}
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} else {
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storage_dir_close(directory);
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storage_file_free(directory);
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free(name);
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return false;
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}
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}
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storage_dir_close(directory);
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storage_file_free(directory);
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free(name);
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return true;
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}
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bool file_select_fill_count(FileSelect* file_select) {
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furi_assert(file_select);
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furi_assert(file_select->fs_api);
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furi_assert(file_select->path);
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furi_assert(file_select->extension);
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FileInfo file_info;
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File* directory = storage_file_alloc(file_select->fs_api);
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uint16_t file_counter = 0;
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const uint8_t name_length = 100;
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char* name = furi_alloc(name_length);
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if(!storage_dir_open(directory, file_select->path)) {
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storage_dir_close(directory);
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storage_file_free(directory);
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free(name);
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return true;
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}
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while(1) {
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if(!storage_dir_read(directory, &file_info, name, name_length)) {
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break;
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}
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if(storage_file_get_error(directory) == FSE_OK) {
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if(filter_file(file_select, &file_info, name)) {
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file_counter++;
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}
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} else {
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storage_dir_close(directory);
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storage_file_free(directory);
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free(name);
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return false;
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}
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}
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with_view_model(
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file_select->view, (FileSelectModel * model) {
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model->file_count = file_counter;
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return false;
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});
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storage_dir_close(directory);
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storage_file_free(directory);
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free(name);
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return true;
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}
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void file_select_set_selected_file_internal(FileSelect* file_select, const char* filename) {
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furi_assert(file_select);
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furi_assert(filename);
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furi_assert(file_select->fs_api);
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furi_assert(file_select->path);
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furi_assert(file_select->extension);
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if(strlen(filename) == 0) return;
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FileInfo file_info;
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File* directory = storage_file_alloc(file_select->fs_api);
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const uint8_t name_length = 100;
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char* name = furi_alloc(name_length);
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uint16_t file_position = 0;
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bool file_found = false;
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string_t filename_str;
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string_init_set_str(filename_str, filename);
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if(strcmp(file_select->extension, "*") != 0) {
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string_cat_str(filename_str, file_select->extension);
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}
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if(!storage_dir_open(directory, file_select->path)) {
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string_clear(filename_str);
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storage_dir_close(directory);
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storage_file_free(directory);
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free(name);
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return;
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}
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while(1) {
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if(!storage_dir_read(directory, &file_info, name, name_length)) {
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break;
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}
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if(storage_file_get_error(directory) == FSE_OK) {
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if(filter_file(file_select, &file_info, name)) {
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if(strcmp(string_get_cstr(filename_str), name) == 0) {
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file_found = true;
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break;
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}
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file_position++;
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}
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} else {
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string_clear(filename_str);
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storage_dir_close(directory);
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storage_file_free(directory);
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free(name);
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return;
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}
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}
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if(file_found) {
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with_view_model(
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file_select->view, (FileSelectModel * model) {
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uint16_t max_first_file_index =
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model->file_count > FILENAME_COUNT ? model->file_count - FILENAME_COUNT : 0;
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model->first_file_index = file_position;
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if(model->first_file_index > 0) {
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model->first_file_index -= 1;
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}
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if(model->first_file_index >= max_first_file_index) {
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model->first_file_index = max_first_file_index;
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}
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model->position = file_position - model->first_file_index;
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return true;
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});
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}
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string_clear(filename_str);
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storage_dir_close(directory);
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storage_file_free(directory);
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free(name);
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}
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void file_select_set_selected_file(FileSelect* file_select, const char* filename) {
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file_select_set_selected_file_internal(file_select, filename);
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if(!file_select_fill_strings(file_select)) {
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file_select->callback(false, file_select->context);
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}
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} |