Stop early

- Adds a basic way of adding the ability to exit early

Author: acegoal07

nfc_playlist.h

@@ -1,11 +1,13 @@
 #pragma once
 #include <furi.h>
+#include <furi_hal.h>
 #include <string.h>
 #include <gui/gui.h>
 #include <gui/view_dispatcher.h>
 #include <gui/scene_manager.h>
 #include <gui/modules/popup.h>
 #include <gui/modules/variable_item_list.h>
+#include <lib/worker/nfc_playlist_worker.h>
 
 typedef enum {
    NfcPlaylistView_Menu,
@@ -23,6 +25,8 @@ typedef struct {
    ViewDispatcher* view_dispatcher;
    VariableItemList* variable_item_list;
    Popup* popup;
+   FuriThread* thread;
+   NfcPlaylistWorker* nfc_playlist_worker;
    uint8_t emulate_timeout;
    uint8_t emulate_delay;
 } NfcPlaylist;

scences/emulation.c

@@ -1,24 +1,84 @@
 #include "nfc_playlist.h"
 #include "scences/emulation.h"
 
+bool cancel = false;
+
 void nfc_playlist_emulation_scene_on_enter(void* context) {
     NfcPlaylist* nfc_playlist = context;
+    nfc_playlist_emulation_setup(nfc_playlist);
+    nfc_playlist_emulation_start(nfc_playlist);
+}
+
+bool nfc_playlist_emulation_scene_on_event(void* context, SceneManagerEvent event) {
+    NfcPlaylist* nfc_playlist = context;
+    UNUSED(nfc_playlist);
+    FURI_LOG_RAW_I("nfc_playlist_emulation_scene_on_event: %ld", event.event);
+    switch (event.event) {
+        case 0:
+            if (nfc_playlist_worker_is_emulating(nfc_playlist->nfc_playlist_worker) && cancel != true) {
+                cancel = true;
+                return true;
+            }
+        default:
+            break;
+    }
+
+    return false;
+}
+
+void nfc_playlist_emulation_scene_on_exit(void* context) {
+    NfcPlaylist* nfc_playlist = context;
+    cancel = false;
+    nfc_playlist_emulation_stop(nfc_playlist);
+    nfc_playlist_emulation_free(nfc_playlist);
+    popup_reset(nfc_playlist->popup);
+}
+
+void nfc_playlist_emulation_setup(void* context) {
+    NfcPlaylist* nfc_playlist = context;
+
+    nfc_playlist->thread = furi_thread_alloc_ex(
+        "NfcPlaylistEmulationWorker", 8192, nfc_playlist_emulation_task, nfc_playlist);
+    nfc_playlist->nfc_playlist_worker = nfc_playlist_worker_alloc();
+}
+
+void nfc_playlist_emulation_free(NfcPlaylist* nfc_playlist) {
+    furi_assert(nfc_playlist);
+    furi_thread_free(nfc_playlist->thread);
+    nfc_playlist_worker_free(nfc_playlist->nfc_playlist_worker);
+    nfc_playlist->thread = NULL;
+    nfc_playlist->nfc_playlist_worker = NULL;
+}
+
+void nfc_playlist_emulation_start(NfcPlaylist* nfc_playlist) {
+    furi_assert(nfc_playlist);
+    furi_thread_start(nfc_playlist->thread);
+}
+
+void nfc_playlist_emulation_stop(NfcPlaylist* nfc_playlist) {
+    furi_assert(nfc_playlist);
+    furi_thread_join(nfc_playlist->thread);
+}
 
+int32_t nfc_playlist_emulation_task(void* context) {
+    NfcPlaylist* nfc_playlist = context;
     // open/alloc resources
     Storage* storage = furi_record_open(RECORD_STORAGE);
     Stream* stream = file_stream_alloc(storage);
     FuriString* line = furi_string_alloc();
-    NfcPlaylistWorker* nfc_worker = nfc_playlist_worker_alloc();
+
+    popup_reset(nfc_playlist->popup);
+    popup_set_context(nfc_playlist->popup, nfc_playlist);
+    view_dispatcher_switch_to_view(nfc_playlist->view_dispatcher, NfcPlaylistView_Popup);
+
     // Read file
     if(file_stream_open(stream, APP_DATA_PATH("playlist.txt"), FSAM_READ, FSOM_OPEN_EXISTING)) {
-        popup_reset(nfc_playlist->popup);
-        popup_set_context(nfc_playlist->popup, nfc_playlist);
+
         popup_set_header(nfc_playlist->popup, "Emulating:", 64, 10, AlignCenter, AlignTop);
-        view_dispatcher_switch_to_view(nfc_playlist->view_dispatcher, NfcPlaylistView_Popup);
 
         int file_position = 0;
         // read the file line by line and print the text
-        while(stream_read_line(stream, line)) {
+        while(stream_read_line(stream, line) && cancel == false) {
             if (options_emulate_delay[nfc_playlist->emulate_delay] > 0) {
                 if (file_position > 0) {
                     int time_counter_delay_ms = options_emulate_delay[nfc_playlist->emulate_delay];
@@ -28,7 +88,7 @@ void nfc_playlist_emulation_scene_on_enter(void* context) {
                         popup_set_text(nfc_playlist->popup, display_text, 64, 25, AlignCenter, AlignTop);
                         furi_delay_ms(500);
                         time_counter_delay_ms -= 500;
-                    } while(time_counter_delay_ms > 0);
+                    } while(time_counter_delay_ms > 0 && cancel == false);
                 } else {
                     file_position++;
                 }
@@ -50,8 +110,8 @@ void nfc_playlist_emulation_scene_on_enter(void* context) {
                     time_counter_ms -= 500;
                 } while(time_counter_ms > 0);
             } else {
-                nfc_playlist_worker_set_nfc_data(nfc_worker, file_path);
-                nfc_playlist_worker_start(nfc_worker);
+                nfc_playlist_worker_set_nfc_data(nfc_playlist->nfc_playlist_worker, file_path);
+                nfc_playlist_worker_start(nfc_playlist->nfc_playlist_worker);
 
                 int popup_text_size = (strlen(file_name) + 4);
                 char popup_text[popup_text_size];
@@ -61,38 +121,22 @@ void nfc_playlist_emulation_scene_on_enter(void* context) {
                     popup_set_text(nfc_playlist->popup, popup_text, 64, 25, AlignCenter, AlignTop);
                     furi_delay_ms(500);
                     time_counter_ms -= 500;
-                } while(nfc_playlist_worker_is_emulating(nfc_worker) && time_counter_ms > 0);
+                } while(nfc_playlist_worker_is_emulating(nfc_playlist->nfc_playlist_worker) && time_counter_ms > 0 && cancel == false);
 
-                if (nfc_playlist_worker_is_emulating(nfc_worker)) {
-                    nfc_playlist_worker_stop(nfc_worker);
-                }
+                nfc_playlist_worker_stop(nfc_playlist->nfc_playlist_worker);
             }
         }
         popup_reset(nfc_playlist->popup);
-        scene_manager_previous_scene(nfc_playlist->scene_manager);
+        popup_set_header(nfc_playlist->popup, "Emulation finished", 64, 10, AlignCenter, AlignTop);
+        popup_set_text(nfc_playlist->popup, "Press back", 64, 25, AlignCenter, AlignTop);
     } else {
-        popup_reset(nfc_playlist->popup);
-        popup_set_context(nfc_playlist->popup, nfc_playlist);
         popup_set_header(nfc_playlist->popup, "Error:", 64, 10, AlignCenter, AlignTop);
         popup_set_text(nfc_playlist->popup, "Failed to open file\n/ext/apps_data/nfc_playlist/playlist.txt", 64, 25, AlignCenter, AlignTop);
-        view_dispatcher_switch_to_view(nfc_playlist->view_dispatcher, NfcPlaylistView_Popup);
     }
     // Free/close resources
     furi_string_free(line);
     file_stream_close(stream);
     stream_free(stream);
-    nfc_playlist_worker_free(nfc_worker);
-    // Close storage
-    furi_record_close(RECORD_STORAGE);
-}
-
-bool nfc_playlist_emulation_scene_on_event(void* context, SceneManagerEvent event) {
-    UNUSED(context);
-    UNUSED(event);
-    return false;
-}
-
-void nfc_playlist_emulation_scene_on_exit(void* context) {
-   NfcPlaylist* nfc_playlist = context;
-   popup_reset(nfc_playlist->popup);
+    // Close storage    
+    return 0;
 }

scences/emulation.h

@@ -11,4 +11,10 @@
 
 void nfc_playlist_emulation_scene_on_enter(void* context);
 bool nfc_playlist_emulation_scene_on_event(void* context, SceneManagerEvent event);
-void nfc_playlist_emulation_scene_on_exit(void* context);
+void nfc_playlist_emulation_scene_on_exit(void* context);
+
+void nfc_playlist_emulation_setup(void* context);
+void nfc_playlist_emulation_free(NfcPlaylist* nfc_playlist);
+void nfc_playlist_emulation_start(NfcPlaylist* nfc_playlist);
+void nfc_playlist_emulation_stop(NfcPlaylist* nfc_playlist);
+int32_t nfc_playlist_emulation_task(void* context);