ui: fs file list (not finished)

src/ui/widget/fs_file_list.c

@@ -0,0 +1,160 @@
+#include "../../file_processor.h"
+#include "../app.h"
+#include "fs_file_list.h"
+#include "progress_bar.h"
+#include <dirent.h>
+#include <errno.h>
+#include <ncurses.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+void reset_file_list(ui_fs_file_list_t *fl_ui);
+
+static void fl_add(fl_item_t **f_start, fl_item_t **f_current,
+                   struct dirent *dent) {
+  fl_item_t *c_item = malloc(sizeof(fl_item_t));
+  c_item->name = dent->d_name;
+  c_item->description = NULL;
+  c_item->owner = NULL;
+  c_item->size = 0;
+  c_item->next = NULL;
+  if (*f_start == NULL) {
+    *f_start = c_item;
+    *f_current = c_item;
+  } else {
+    (*f_current)->next = c_item;
+  }
+}
+
+fl_item_t *get_files_from_fs(char *path) {
+  DIR *dir;
+  struct dirent *dent;
+
+  fl_item_t *l_start = NULL, *l_current = NULL;
+
+  dir = opendir(path);
+  if (!dir) {
+    return NULL;
+    errno = 1;
+  }
+  while ((dent = readdir(dir)) != NULL) {
+    fl_add(&l_start, &l_current, dent);
+  }
+  return l_start;
+}
+
+void fs_file_list_cb(callback_args_t *args) {
+  app_t *app = args->app;
+  ui_fs_file_list_t *fui = app->query_args->file_list_ui;
+  int32_t key = *((int32_t *)args->data);
+  int32_t q_len = 0;
+  fl_item_t *f_item;
+  ui_progress_bar_t *pb;
+  switch (key) {
+  case KEY_DOWN:
+    if (fui->current_idx < fui->current_count - 1) {
+      fui->current_idx++;
+      draw_fs_file_list(fui);
+    } else {
+      fl_clear(fui->start, fui->current);
+      reset_file_list(fui);
+    }
+    break;
+  case KEY_UP:
+    if (fui->current_idx > 0) {
+      fui->current_idx--;
+      draw_fs_file_list(fui);
+    } else {
+      fl_clear(fui->start, fui->current);
+      reset_fs_file_list(fui);
+      fui->activate_last = true;
+    }
+    break;
+  case '\n':
+    /* here goes file select */
+    break;
+  }
+}
+
+ui_fs_file_list_t *init_fs_file_list(WINDOW **win, widget_t *w_parent) {
+  ui_fs_file_list_t *fl_ui = malloc(sizeof(ui_fs_file_list_t));
+  init_widget(&(fl_ui->w), w_parent, win, "");
+  fl_ui->current_idx = 0;
+  fl_ui->current_count = 0;
+  fl_ui->activate_last = false;
+  fl_ui->info_win = NULL;
+  return fl_ui;
+}
+
+void reset_fs_file_list(ui_fs_file_list_t *fl_ui) {
+  fl_ui->current_idx = 0;
+  fl_ui->current_count = 0;
+  fl_ui->activate_last = false;
+}
+
+void draw_fs_file_list(ui_fs_file_list_t *fl_ui) {
+  int32_t sz_y, sz_x;
+  int32_t p_y, p_x;
+  WINDOW *win = *(fl_ui->w.parent_win);
+  getmaxyx(win, sz_y, sz_x);
+  int32_t sz_y_f = sz_y - 2; // actual size (without box)
+  p_y = 1;
+  p_x = 1;
+  fl_item_t *el = *(fl_ui->start);
+  fl_item_t *active_el = *(fl_ui->start);
+  int32_t cur_el_idx = 0;
+  curs_set(0);
+
+  if (fl_ui->activate_last) {
+    fl_ui->current_idx = fl_ui->current_count - 1;
+    fl_ui->activate_last = false;
+  }
+
+  if (fl_ui->current_idx + 1 >= sz_y_f) {
+    p_y -= fl_ui->current_idx - sz_y_f + 2;
+  }
+
+  do {
+    if (p_y < 1) {
+      p_y++;
+      cur_el_idx++;
+      continue;
+    }
+    if (cur_el_idx == fl_ui->current_idx) {
+      wattrset(win, A_BOLD | A_REVERSE);
+      active_el = el;
+    }
+    p_x = 1;
+    mvwprintw(win, p_y, p_x, "%s%n", el->name, &p_x);
+    mvwprintw(win, p_y, p_x + 1, "%*s", sz_x - p_x, "");
+    if (cur_el_idx == fl_ui->current_idx) {
+      wattroff(win, A_BOLD | A_REVERSE);
+    }
+    p_y++;
+    cur_el_idx++;
+  } while ((el = el->next) != NULL && p_y < sz_y_f);
+
+  p_x = 1;
+
+  for (; p_y < sz_y_f; p_y++) {
+    mvwprintw(win, p_y, p_x, "%*s", sz_x - 1, "");
+  }
+  char p_info[24];
+  uint32_t p_len;
+  p_x = 1;
+
+  uint32_t l_pad = (sz_x - p_len) / 2;
+
+  wattrset(win, A_BOLD);
+  mvwprintw(win, p_y, p_x, "%*s%s%*s", l_pad, "", p_info, l_pad, "");
+  wattroff(win, A_BOLD);
+}
+
+void destroy_fs_file_list(ui_fs_file_list_t *fui) {
+  fl_clear(fui->start, fui->current);
+  free(fui);
+}