Improving the image logic.

include/openmg/view/controls.h

@@ -9,6 +9,8 @@ typedef struct {
     AdwHeaderBar *header;
     AdwLeaflet *views_leaflet;
     AdwViewStack *view_stack;
+    GCancellable **image_threads;
+    size_t image_threads_len;
     GtkButton *previous;
     gboolean is_set_previous;
 } ControlsAdwaita;

sqlite

@@ -1 +0,0 @@
-Subproject commit 855a165fecc25da50cb20525ddf5b9e60a67d18f

src/view/list_view_manga.c

@@ -26,6 +26,14 @@ manga_selected (GtkListView *list_view,
         guint position,
         gpointer user_data) {
     ControlsAdwaita *controls = (ControlsAdwaita *) user_data;
+    for (size_t i = 0; i < controls->image_threads_len; i++) {
+        g_cancellable_cancel (controls->image_threads[i]);
+    }
+    if (controls->image_threads) {
+        g_free (controls->image_threads);
+    }
+    controls->image_threads = NULL;
+    controls->image_threads_len = 0;
     AdwLeaflet *views_leaflet = controls->views_leaflet;
     GtkSingleSelection *selection = GTK_SINGLE_SELECTION 
         (gtk_list_view_get_model (list_view));
@@ -65,6 +73,7 @@ static void
 setup_list_view_mangas (GtkSignalListItemFactory *factory,
         GtkListItem *list_item,
         gpointer user_data) {
+    ControlsAdwaita *controls = (ControlsAdwaita *) user_data;
     MgManga *manga = gtk_list_item_get_item (list_item);
     GtkBox *box = GTK_BOX (gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0));
     char *manga_title = mg_manga_get_title (manga);
@@ -72,8 +81,13 @@ setup_list_view_mangas (GtkSignalListItemFactory *factory,
 
     GtkWidget *label = gtk_label_new (manga_title);
 #ifdef LIST_IMAGES
+    GCancellable *cancellable = g_cancellable_new ();
     GtkPicture *picture = create_picture_from_url (image_url, 100,
-        picture_ready_manga_preview, box, NULL);
+        picture_ready_manga_preview, box, cancellable);
+    controls->image_threads_len++;
+    controls->image_threads = g_realloc (controls->image_threads, 
+            controls->image_threads_len * sizeof *(controls->image_threads));
+    controls->image_threads[controls->image_threads_len-1] = cancellable;
 #endif
 
     g_object_set_property_int (G_OBJECT(box), "height-request", 100);
@@ -91,14 +105,13 @@ setup_list_view_mangas (GtkSignalListItemFactory *factory,
 
 GtkListView *
 create_list_view_mangas (GListStore *mangas, ControlsAdwaita *controls) {
-    AdwLeaflet *views_leaflet = controls->views_leaflet;
     GtkSingleSelection *selection = gtk_single_selection_new (G_LIST_MODEL (mangas));
     GtkListItemFactory *factory = gtk_signal_list_item_factory_new ();
     GtkListView *list_view_manga = NULL;
 
     g_signal_connect (G_OBJECT (factory), "bind",
             G_CALLBACK (setup_list_view_mangas),
-            views_leaflet);
+            controls);
 
     list_view_manga = GTK_LIST_VIEW (gtk_list_view_new (GTK_SELECTION_MODEL (selection),
                 factory));

src/view/main_view.c

@@ -54,7 +54,8 @@ activate (AdwApplication *app,
     controls->is_set_previous = 0;
     controls->header = NULL;
     controls->view_stack = view_stack;
-
+    controls->image_threads_len = 0;
+    controls->image_threads = NULL;
 
     views_leaflet_explore = create_explore_leaflet (controls, swipe_back);
     views_leaflet_search = create_search_leaflet (controls, swipe_back);

src/view/search.c

@@ -9,6 +9,11 @@ static void
 search_text_changed (GtkEntry *entry,
         gpointer user_data);
 
+typedef struct {
+    GtkListView *list_view_mangas;
+    ControlsAdwaita *controls;
+} SearchTextData;
+
 GtkWidget *
 create_search_view (ControlsAdwaita *controls) {
     GtkWidget *search_view = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
@@ -17,12 +22,15 @@ create_search_view (ControlsAdwaita *controls) {
     GtkWidget *scroll = gtk_scrolled_window_new ();
     GListStore *mangas = g_list_store_new(MG_TYPE_MANGA);
     GtkListView *list_view_mangas;
+    SearchTextData *search_text_data = g_malloc (sizeof *search_text_data);
 
     gtk_box_append (GTK_BOX (search_view), search_entry);
 
     list_view_mangas = create_list_view_mangas (mangas, controls);
+    search_text_data->list_view_mangas = list_view_mangas;
+    search_text_data ->controls = controls;
     g_signal_connect (search_entry, "activate",
-            G_CALLBACK (search_text_changed), list_view_mangas);
+            G_CALLBACK (search_text_changed), search_text_data);
 
     gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scroll),
             GTK_WIDGET (list_view_mangas));
@@ -36,11 +44,21 @@ create_search_view (ControlsAdwaita *controls) {
 static void
 search_text_changed (GtkEntry *entry,
         gpointer user_data) {
-    GtkListView *list_view_mangas = GTK_LIST_VIEW (user_data);
+    SearchTextData *search_text_data = (SearchTextData *) user_data;
+    ControlsAdwaita *controls = search_text_data->controls;
+    GtkListView *list_view_mangas = search_text_data->list_view_mangas;
     GtkEntryBuffer *buffer = gtk_entry_get_buffer (entry);
     MgBackendReadmng *readmng = mg_backend_readmng_new ();
     const char *search_string = gtk_entry_buffer_get_text (buffer);
     GListStore *mangas = mg_backend_readmng_search (readmng, search_string);
+    for (size_t i = 0; i < controls->image_threads_len; i++) {
+        g_cancellable_cancel (controls->image_threads[i]);
+    }
+    if (controls->image_threads) {
+        g_free (controls->image_threads);
+    }
+    controls->image_threads = NULL;
+    controls->image_threads_len = 0;
     if (!mangas) return;
     GtkSingleSelection *selection = GTK_SINGLE_SELECTION (
             gtk_list_view_get_model (list_view_mangas));