ui: notification when a file is downloaded

TODO.md

@@ -8,7 +8,10 @@ TODO:
 - [ ] Simpler refresh on typing / entering in input
 - [ ] Group elements as lists
 - [x] Process arrows
-- [ ] Optimize modals re-drawings
+- [x] Optimize modals re-drawings
+- [ ] Bug with file list on downloading files
+- [ ] Remember page numbers
+- [ ] "Server message" to notification
 
 INPUT:
 - [ ] hidden text for passwords

src/file_processor.c

@@ -34,6 +34,7 @@ void file_list(file_args_t *f_args, query_args_t *q_args) {
   static char qbuf[INBUFSIZE * 2];
   static uint32_t qbuf_used = 0;
   ui_file_list_t *fui = (ui_file_list_t *)q_args->file_list_ui;
+  dialogue_t *d = (dialogue_t *)q_args->active_dialogue;
   fui->start = &(f_args->l_start);
   fui->current = &(f_args->l_current);
 
@@ -45,6 +46,9 @@ void file_list(file_args_t *f_args, query_args_t *q_args) {
     if (!strcmp("list_end\n", query)) {
       q_args->state = S_FILE_SELECT;
       draw_file_list(fui);
+      if (d != NULL && d->is_initiated) {
+        d->needs_update = true;
+      }
       idx = 1;
       break;
     }
@@ -159,7 +163,7 @@ int32_t ui_file_select(file_args_t *f_args, query_args_t *q_args, int32_t idx) {
   f_selected->name = NULL;
   sprintf(file_path, "%s/%s", DOWNLOADS_DIR, l_selected->name);
   f_selected->name = strdup(l_selected->name);
-  /* fl_clear(&f_args->l_start, &f_args->l_current); */
+  fl_clear(&f_args->l_start, &f_args->l_current);
   f_args->file_d = open(file_path, O_WRONLY | O_CREAT | O_TRUNC, 0666);
   if (f_args->file_d == -1) {
     qlen = sprintf(send_buf, "error: %s\n", f_selected->name);
@@ -186,6 +190,7 @@ void file_download(file_args_t *f_args, query_args_t *q_args) {
     if (it_interval == 0)
       it_interval = 1;
   }
+  char answer[256];
 
   static size_t size_rest = 0;
   uint32_t progress = (f_selected->size - size_rest) * 100 / f_selected->size;
@@ -213,9 +218,13 @@ void file_download(file_args_t *f_args, query_args_t *q_args) {
       it_interval = 0;
       f_selected->size = 0;
       close(f_args->file_d);
-      free(f_selected->name);
       d->needs_destroy = true;
-      q_args->state = WAIT_CLIENT;
+      sprintf(answer, "File %s is downloaded from the server!", f_selected->name);
+      q_args->notification = malloc(strlen(answer)+1);
+      strcpy(q_args->notification, answer);
+      free(f_selected->name);
+      write(q_args->sd, "file list\n", sizeof("file list\n")-1);
+      q_args->state = S_FILE_LIST;
     }
   }
 }

src/main.h

@@ -87,6 +87,7 @@ typedef struct query_args {
   void *file_list_ui; /* TODO: find solution to insert actual type without recursion */
   void *progress_bar;
   void *active_dialogue;
+  char *notification;
 } query_args_t;
 
 #endif

src/query.c

@@ -263,6 +263,7 @@ void init_query_args(query_args_t *q_args, params_t *params) {
   q_args->next_server_command = NULL;
   q_args->progress_bar = NULL;
   q_args->active_dialogue = NULL;
+  q_args->notification = NULL;
 }
 
 void user_request_description(query_args_t *q_args) {

src/server.c

@@ -87,7 +87,7 @@ int process_server_command(char *line, int l_len, query_args_t *q_args) {
 
   /* WELCOME MES */
   if (!strncmp(line, "Welcome, ", ws_pos)) {
-    write(q_args->sd, "file list", sizeof("file list"));
+    write(q_args->sd, "file list\n", sizeof("file list\n")-1);
     q_args->state = S_FILE_LIST;
     return 0;
   }

src/ui/app.c

@@ -3,6 +3,7 @@
 #include "modals/download_pr.h"
 #include "modals/login_credentials.h"
 #include "modals/login_option.h"
+#include "modals/notification.h"
 #include "modals/server_message.h"
 #include "widget/dialogue.h"
 #include <ncurses.h>
@@ -139,6 +140,10 @@ void app_refresh(app_t *app) {
 }
 
 void app_draw_modal(app_t *app) {
+  if (app->modal.needs_destroy) {
+    destroy_dialogue(&(app->modal), app);
+    app_refresh(app);
+  }
   if (!app->modal.is_initiated) {
     switch (app->query_args->state) {
     case S_ASK_SEVER_IP:
@@ -172,18 +177,18 @@ void app_draw_modal(app_t *app) {
     case S_WAIT_SERVER:
     case S_N_D:
     case S_NEXT_ACTION:
-      return;
+      if (app->query_args->notification != NULL) {
+        init_notification_modal(app);
+      } else {
+        return;
+      }
     }
     app->active_callback = app->modal.w.callback;
     app->active_win = app->modal.win;
     app->active_win_type = aw_modal;
     app->active_widget = &(app->modal);
   }
-  if (app->modal.needs_destroy) {
-    destroy_dialogue(&(app->modal), app);
-  } else {
-    draw_dialogue(&(app->modal));
-  }
+  draw_dialogue(&(app->modal));
 }
 
 void destroy_app(app_t *app) {

src/ui/modals/notification.c

@@ -0,0 +1,51 @@
+#include <ncurses.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../app.h"
+#include "../widget/dialogue.h"
+#include "../widget/group.h"
+
+typedef struct {
+  button_t *element;
+  enum w_type type;
+} group_bt_t;
+
+void init_notification_modal_cb(callback_args_t *args) {
+  int32_t response;
+  callback_args_t d_args;
+  app_t *app = args->app;
+  dialogue_t *d = (dialogue_t *)app->active_widget;
+  memcpy(&d_args, args, sizeof(callback_args_t));
+  d_args.app = NULL;
+  d_args.resp_data = &response;
+  d_args.widget = app->active_widget;
+  dialogue_default_callback(&d_args);
+
+  app->query_args->state = WAIT_CLIENT;
+  destroy_dialogue(d, app);
+}
+
+dialogue_t *init_notification_modal(app_t *app) {
+  if (app == NULL)
+    return NULL;
+
+  group_el_init_t actions[] = {
+      {.type = w_button, .label = "OK", .is_default = 1}, {.type = w_end}};
+
+  init_dialogue(&(app->modal), "Notification", app->query_args->notification,
+                &(app->coordinates));
+  free(app->query_args->notification);
+  app->query_args->notification = NULL;
+  dialogue_t *d = &(app->modal);
+  app->query_args->active_dialogue = d;
+
+  d->w.callback = init_notification_modal_cb;
+  d->g_content = NULL;
+  d->g_action = init_group(&(d->win), &(d->w), actions, horizontal);
+
+  dialogue_init_active_id(d);
+
+  return NULL;
+}

src/ui/modals/notification.h

@@ -0,0 +1,9 @@
+#ifndef NOTIFICATION_H
+#define NOTIFICATION_H
+
+#include "../app.h"
+#include "../widget/dialogue.h"
+
+dialogue_t *init_notification_modal(app_t *app);
+
+#endif