Migrating into using GObject to the manga retrieval.

Makefile

@@ -6,4 +6,4 @@ LDFLAGS := $(shell pkg-config --libs ${LIBS})
 CC_COMMAND := ${CC} ${INCDIR} ${CFLAGS}
 all: build
 build:
-	${CC_COMMAND} readmng.c manga.c main.c -o main ${LDFLAGS} -ggdb
+	${CC_COMMAND} src/manga.c src/backend/readmng.c manga.c main.c -o main ${LDFLAGS} -ggdb

include/manga.h

@@ -1,6 +1,4 @@
-#ifndef MANGA
+#pragma once
-#define MANGA
-
 #include <libsoup/soup.h>
 #include <libxml/HTMLparser.h>
 #include <libxml/xpath.h>
@@ -59,4 +57,3 @@ loop_search_class (const xmlNodePtr node, xmlNodePtr *nodes,
         const char * class, size_t *len);
 char *
 copy_binary_data (const char *input, size_t size);
-#endif

include/openmg/backend/readmng.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include <glib-object.h>
+
+#include <openmg/manga.h>
+
+G_BEGIN_DECLS;
+
+/*
+ * Type declaration
+ */
+#define MG_TYPE_BACKEND_READMNG mg_backend_readmng_get_type ()
+G_DECLARE_FINAL_TYPE (MgBackendReadmng, mg_backend_readmng, MG, BACKEND_READMNG, GObject)
+
+void
+mg_backend_readmng_set_property (GObject *object, guint property_id, 
+        const GValue *value, GParamSpec *pspec);
+void
+mg_backend_readmng_get_property (GObject *object, guint property_id, 
+        GValue *value, GParamSpec *pspec);
+/*
+ * Method definitions.
+ */
+MgBackendReadmng *
+mg_backend_readmng_new (void);
+
+MgManga **
+mg_backend_readmng_get_featured_manga (MgBackendReadmng *self, size_t *len);
+
+G_END_DECLS

include/openmg/manga.h

@@ -0,0 +1,20 @@
+#pragma once
+#include <glib-object.h>
+
+G_BEGIN_DECLS;
+
+/*
+ * Type declaration
+ */
+#define MG_TYPE_MANGA mg_manga_get_type()
+G_DECLARE_FINAL_TYPE (MgManga, mg_manga, MG, MANGA, GObject)
+
+/*
+ * Method definitions.
+ */
+char *mg_manga_get_image_url(MgManga *mg_manga);
+char *mg_manga_get_title(MgManga *mg_manga);
+
+MgManga *mg_manga_new (const char *const image_url, const char *const title);
+
+G_END_DECLS

main.c

@@ -1,6 +1,9 @@
 #include <gtk/gtk.h>
 #include <adwaita.h>
 
+#include <openmg/backend/readmng.h>
+#include <openmg/manga.h>
+
 #include <readmng.h>
 #include <manga.h>
 
@@ -10,11 +13,13 @@ GtkBox *
 create_main_box (AdwApplicationWindow *window);
 GtkBox *
 create_manga_container ();
-AdwCarousel *
+GtkListBox *
-create_adw_caroulsel (GtkBox *box);
+create_list_box (GtkBox *box);
+void 
+g_object_set_property_int(GObject *object, char *property_key, int value);
 
 void
-fill_carousel_of_mangas (AdwCarousel *carousel);
+fill_list_of_mangas (GtkListBox *list);
 
 void
 activate (AdwApplication *app,
@@ -25,23 +30,26 @@ activate (AdwApplication *app,
     GtkBox *box = create_main_box(
             ADW_APPLICATION_WINDOW
             (window));
-    AdwCarousel *carousel;
+    GtkListBox *list;
     create_headerbar (box);
 
-    carousel = create_adw_caroulsel (box);
+    list = create_list_box (box);
-    fill_carousel_of_mangas (carousel);
+    gtk_widget_set_vexpand (GTK_WIDGET (list), 1);
+    fill_list_of_mangas (list);
 
     gtk_widget_show (window);
 }
 
 void
-fill_carousel_of_mangas (AdwCarousel *carousel) {
+fill_list_of_mangas (GtkListBox *list) {
-    struct Manga *mangas;
+    MgManga **mangas;
-    struct Manga *manga;
+    MgManga *manga;
-    GtkBox *manga_container;
+    GtkWidget *row;
     size_t len_mangas = 0;
 
-    mangas = retrieve_readmng_title_mangas (&len_mangas);
+    
+    MgBackendReadmng *readmng = mg_backend_readmng_new ();
+    mangas = mg_backend_readmng_get_featured_manga (readmng, &len_mangas);
     for (int i = 0; i<len_mangas; i++) {
         GtkWidget *picture;
         GFileIOStream *iostream;
@@ -51,10 +59,9 @@ fill_carousel_of_mangas (AdwCarousel *carousel) {
         size_t size_downloaded_image = 0;
         char *downloaded_image;
 
-        manga = &mangas[i];
+        manga = mangas[i];
-        manga_container = create_manga_container (manga);
+
-        adw_carousel_append (carousel, GTK_WIDGET (manga_container));
+        downloaded_image = get_request (mg_manga_get_image_url(manga), &size_downloaded_image);
-        downloaded_image = get_request (manga->image_url, &size_downloaded_image);
         tmp_image = g_file_new_tmp ("mangareadertmpfileXXXXXX",
                 &iostream,
                 &error
@@ -71,10 +78,21 @@ fill_carousel_of_mangas (AdwCarousel *carousel) {
             return;
         }
         picture = gtk_picture_new_for_file (tmp_image);
-        gtk_box_append (manga_container, picture);
+        g_object_set_property_int (G_OBJECT(picture), "height-request", 200);
+        row = gtk_list_box_row_new ();
+        gtk_list_box_row_set_child (GTK_LIST_BOX_ROW (row), picture);
+        gtk_list_box_append (list, row);
     }
 }
 
+void 
+g_object_set_property_int(GObject *object, char *property_key, int value) {
+    GValue property = G_VALUE_INIT;
+    g_value_init (&property, G_TYPE_INT);
+    g_value_set_int (&property, value);
+    g_object_set_property (object, property_key, &property);
+}
+
 GtkBox *
 create_manga_container () {
     GtkBox *manga_container;
@@ -95,11 +113,11 @@ create_main_box (AdwApplicationWindow *window) {
     return GTK_BOX (box);
 }
 
-AdwCarousel *
+GtkListBox *
-create_adw_caroulsel (GtkBox *box) {
+create_list_box (GtkBox *box) {
-    GtkWidget *carousel = adw_carousel_new ();
+    GtkWidget *list = gtk_list_box_new ();
-    gtk_box_append (box, carousel);
+    gtk_box_append (box, list);
-    return ADW_CAROUSEL (carousel);
+    return GTK_LIST_BOX (list);
 }
 
 AdwHeaderBar *
@@ -117,7 +135,7 @@ create_headerbar (GtkBox *box) {
     return ADW_HEADER_BAR (header);
 }
 
-    int
+int
 main (int argc,
         char **argv)
 {

readmng.c

@@ -1,153 +0,0 @@
-#include <manga.h>
-#include <libxml/HTMLparser.h>
-
-const char *readmng_url = "https://www.readmng.com/";
-
-struct Manga *
-parse_readmng_title_page (const xmlDocPtr html_document,
-        size_t *const len);
-xmlNodePtr
-retrieve_slides (const xmlDocPtr html_document);
-xmlNodePtr
-retrieve_ul_slides (xmlNodePtr const slides);
-xmlNodePtr *
-retrieve_li_slides (xmlNodePtr const slides, size_t *li_len);
-xmlNodePtr
-retrieve_img_from_thumnail (xmlNodePtr thumbnail);
-xmlNodePtr
-retrieve_thumbnail_from_li (xmlNodePtr current_li);
-xmlNodePtr
-retrieve_title_from_li (xmlNodePtr li);
-struct Manga *
-extract_manga_info_from_current_li (struct Manga *mangas,
-    xmlNodePtr current_li, size_t *len);
-
-struct Manga *
-retrieve_readmng_title_mangas (size_t *const len) {
-    xmlDocPtr html_response;
-    gsize size_response_text;
-    struct Manga *mangas;
-    char *response_text = get_request (readmng_url,
-            &size_response_text);
-    html_response = htmlReadMemory (response_text,
-            size_response_text,
-            NULL,
-            NULL,
-            HTML_PARSE_RECOVER | HTML_PARSE_NODEFDTD 
-            | HTML_PARSE_NOERROR | HTML_PARSE_NOWARNING
-            );
-    mangas = parse_readmng_title_page (html_response, len);
-    xmlFreeDoc (html_response);
-    g_free (response_text);
-    return mangas;
-}
-
-struct Manga *
-parse_readmng_title_page (const xmlDocPtr html_document,
-        size_t *const len) {
-    struct Manga *mangas = NULL;
-    xmlNodePtr slides = retrieve_slides (html_document);
-    *len = 0;
-    size_t li_len = 0;
-    xmlNodePtr *li = retrieve_li_slides (slides, &li_len);
-    for (int i = 0; i<li_len; i++) {
-        xmlNodePtr current_li = li[i];
-        mangas = extract_manga_info_from_current_li (mangas, current_li,
-                len);
-    }
-    return mangas;
-}
-
-struct Manga *
-extract_manga_info_from_current_li (struct Manga *mangas, xmlNodePtr current_li,
-        size_t *len) {
-    xmlNodePtr thumbnail = retrieve_thumbnail_from_li (current_li);
-    xmlNodePtr title = retrieve_title_from_li (current_li);
-    xmlNodePtr img;
-
-    if (thumbnail && title && (img = retrieve_img_from_thumnail (thumbnail))) {
-        (*len)++;
-        mangas = g_realloc(mangas, sizeof *mangas * *len);
-        struct Manga *manga = &mangas[*len-1];
-        manga->image_url = get_attr (img, "src");
-        manga->title = (char *) xmlNodeGetContent (title);
-    }
-    return mangas;
-}
-
-xmlNodePtr
-retrieve_title_from_li (xmlNodePtr li) {
-    size_t title_len = 0;
-    xmlNodePtr *title = find_class (li, "title", &title_len, NULL, 1);
-    if (title_len) return title[0];
-    return NULL;
-}
-
-xmlNodePtr
-retrieve_img_from_thumnail (xmlNodePtr thumbnail) {
-    for (xmlNodePtr child = thumbnail->children; child; child=child->next) {
-        if (!strcmp((char *)child->name, "img")) {
-            return child;
-        }
-    }
-    return NULL;
-}
-
-xmlNodePtr
-retrieve_thumbnail_from_li (xmlNodePtr current_li) {
-    size_t thumbnail_len = 0;
-    xmlNodePtr *thumbnail = find_class (current_li, "thumbnail",
-            &thumbnail_len, NULL, 1);
-    if (thumbnail_len) return thumbnail[0];
-    return NULL;
-}
-
-xmlNodePtr *
-retrieve_li_slides (xmlNodePtr const slides, size_t *li_len) {
-    xmlNodePtr ul_slides = retrieve_ul_slides (slides);
-    xmlNodePtr *li = NULL;
-    for (xmlNodePtr child = ul_slides->children; child; child=child->next) {
-        (*li_len)++;
-        li = g_realloc(li, sizeof *li * *li_len);
-        li[*li_len-1] = xmlCopyNode(child, XML_COPY_NODE_RECURSIVE);
-    }
-    return li;
-}
-
-xmlNodePtr
-retrieve_ul_slides (xmlNodePtr const slides) {
-    for (xmlNodePtr child = slides->children; child; child = child->next) {
-        if (!strcmp((char *) child->name, "ul")) {
-            return child;
-        }
-    }
-    return NULL;
-}
-
-xmlNodePtr
-retrieve_slides (const xmlDocPtr html_document) {
-    xmlNodePtr *nodes = NULL;
-    xmlXPathObjectPtr xpath_result = NULL;
-    xpath_result = get_nodes_xpath_expression (html_document,
-            "//div[@class]");
-    xmlNodePtr slides = NULL;
-    xmlNodeSetPtr node_set = NULL;
-    size_t matching_classes_len = 0;
-
-    node_set = xpath_result->nodesetval;
-    if (!node_set) {
-        fprintf(stderr, "No match\n");
-        return NULL;
-    }
-    for (int i = 0; i < node_set->nodeNr; i++) {
-        xmlNodePtr node = node_set->nodeTab[i];
-        nodes = loop_search_class (node, nodes, "slides", &matching_classes_len);
-    }
-    if (nodes) {
-        slides = nodes[0];
-    }
-    if (xpath_result) {
-        xmlXPathFreeObject(xpath_result);
-    }
-    return slides;
-}

src/backend/readmng.c

@@ -0,0 +1,253 @@
+#include <libxml/HTMLparser.h>
+
+#include <openmg/backend/readmng.h>
+#include <openmg/manga.h>
+
+#include <manga.h>
+
+typedef enum {
+    MG_BACKEND_READMNG_BASE_URL = 1,
+    MG_BACKEND_READMNG_N_PROPERTIES
+} MgBackendReadmngProperties;
+
+struct _MgBackendReadmng {
+    GObject parent_instance;
+    char *base_url;
+    size_t main_page_html_len;
+    char *main_page_html;
+    MgManga *(*get_featured_manga) ();
+};
+
+G_DEFINE_TYPE (MgBackendReadmng, mg_backend_readmng, G_TYPE_OBJECT)
+
+static GParamSpec *mg_backend_readmng_properties[MG_BACKEND_READMNG_N_PROPERTIES] = { NULL, };
+
+static void
+mg_backend_readmng_class_init (MgBackendReadmngClass *class) {
+    GObjectClass *object_class = G_OBJECT_CLASS (class);
+    object_class->set_property = mg_backend_readmng_set_property;
+    object_class->get_property = mg_backend_readmng_get_property;
+
+    mg_backend_readmng_properties[MG_BACKEND_READMNG_BASE_URL] = g_param_spec_string ("base_url",
+            "BaseURL",
+            "Url of the backend.",
+            NULL,
+            G_PARAM_READWRITE);
+
+    g_object_class_install_properties (object_class,
+            MG_BACKEND_READMNG_N_PROPERTIES,
+            mg_backend_readmng_properties);
+}
+
+static xmlNodePtr
+mg_backend_readmng_retrieve_img_from_thumbnail (MgBackendReadmng *self, xmlNodePtr thumbnail);
+static xmlNodePtr
+mg_backend_readmng_retrieve_ul_slides(MgBackendReadmng *self, xmlNodePtr slides) ;
+static MgManga **
+mg_backend_readmng_extract_manga_info_from_current_li (MgBackendReadmng *self, 
+        MgManga **mangas, xmlNodePtr current_li, size_t *len);
+static xmlNodePtr *
+mg_backend_readmng_retrieve_li_slides (MgBackendReadmng *self, const xmlNodePtr slides, size_t *li_len);
+static xmlNodePtr
+mg_backend_readmng_retrieve_slides (MgBackendReadmng *self, const xmlDocPtr html_document);
+static const char *
+mg_backend_readmng_get_main_page (MgBackendReadmng *self, size_t *len);
+static MgManga **
+mg_backend_readmng_parse_main_page (MgBackendReadmng *self, size_t *len, const xmlDocPtr html_document);
+static xmlDocPtr
+mg_backend_readmng_fetch_xml_main_page (MgBackendReadmng *self);
+
+MgBackendReadmng *
+mg_backend_readmng_new(void) {
+    return (MG_BACKEND_READMNG) (g_object_new (MG_TYPE_BACKEND_READMNG, NULL));
+}
+
+static void
+mg_backend_readmng_init (MgBackendReadmng *self) {
+    if (!self->base_url) {
+        self->base_url = "https://www.readmng.com/";
+    }
+}
+
+const char *
+mg_backend_readmng_get_base_url (MgBackendReadmng *self) {
+    return self->base_url;
+}
+
+void
+mg_backend_readmng_set_property (GObject *object,
+        guint property_id,
+        const GValue *value,
+        GParamSpec *pspec) {
+    MgBackendReadmng *self = MG_BACKEND_READMNG (object);
+    switch ((MgBackendReadmngProperties) property_id) {
+        case MG_BACKEND_READMNG_BASE_URL:
+            g_free (self->base_url);
+            self->base_url = g_value_dup_string (value);
+            break;
+        default:
+            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+            break;
+    }
+}
+
+void
+mg_backend_readmng_get_property (GObject *object,
+        guint property_id,
+        GValue *value,
+        GParamSpec *pspec) {
+    MgBackendReadmng *self = MG_BACKEND_READMNG (object);
+    switch ((MgBackendReadmngProperties) property_id) {
+        case MG_BACKEND_READMNG_BASE_URL:
+            g_value_set_string (value, self->base_url);
+            break;
+        default:
+            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+            break;
+    }
+}
+
+MgManga **
+mg_backend_readmng_get_featured_manga (MgBackendReadmng *self, size_t *len) {
+    MgManga **mangas;
+    xmlDocPtr html_document;
+    html_document = mg_backend_readmng_fetch_xml_main_page (self);
+    mangas = mg_backend_readmng_parse_main_page (self, len, html_document);
+    return mangas;
+
+}
+
+static xmlDocPtr
+mg_backend_readmng_fetch_xml_main_page (MgBackendReadmng *self) {
+    size_t size_response_text = 0;
+    return htmlReadMemory (mg_backend_readmng_get_main_page (self, &size_response_text),
+        size_response_text,
+        NULL,
+        NULL,
+        HTML_PARSE_RECOVER | HTML_PARSE_NODEFDTD 
+        | HTML_PARSE_NOERROR | HTML_PARSE_NOWARNING
+    );
+}
+
+static const char *
+mg_backend_readmng_get_main_page (MgBackendReadmng *self, size_t *len) {
+    if (!self->main_page_html) {
+        self->main_page_html = get_request (self->base_url,
+                &self->main_page_html_len);
+    }
+    if (len) {
+        *len = self->main_page_html_len;
+    }
+    return self->main_page_html;
+}
+
+static MgManga **
+mg_backend_readmng_parse_main_page (MgBackendReadmng *self, size_t *len, const xmlDocPtr html_document) {
+    MgManga **mangas = NULL;
+    xmlNodePtr *li;
+
+    *len = 0;
+    xmlNodePtr slides = mg_backend_readmng_retrieve_slides (self, html_document);
+
+    size_t li_len = 0;
+    li = mg_backend_readmng_retrieve_li_slides (self, slides, &li_len);
+    for (int i = 0; i<li_len; i++) {
+        xmlNodePtr current_li = li[i];
+        mangas = mg_backend_readmng_extract_manga_info_from_current_li (self, mangas, current_li,
+                len);
+    }
+    return mangas;
+}
+
+static xmlNodePtr *
+mg_backend_readmng_retrieve_li_slides (MgBackendReadmng *self, const xmlNodePtr slides, size_t *li_len) {
+    xmlNodePtr ul_slides = mg_backend_readmng_retrieve_ul_slides (self, slides);
+    xmlNodePtr *li = NULL;
+    for (xmlNodePtr child = ul_slides->children; child; child=child->next) {
+        (*li_len)++;
+        li = g_realloc(li, sizeof *li * *li_len);
+        li[*li_len-1] = xmlCopyNode(child, XML_COPY_NODE_RECURSIVE);
+    }
+    return li;
+}
+
+static xmlNodePtr
+mg_backend_readmng_retrieve_ul_slides(MgBackendReadmng *self, xmlNodePtr slides) {
+    for (xmlNodePtr child = slides->children; child; child = child->next) {
+        if (!strcmp((char *) child->name, "ul")) {
+            return child;
+        }
+    }
+    return NULL;
+}
+
+static xmlNodePtr
+mg_backend_readmng_retrieve_slides (MgBackendReadmng *self, const xmlDocPtr html_document) {
+    xmlNodePtr *nodes = NULL;
+    xmlXPathObjectPtr xpath_result = NULL;
+    xpath_result = get_nodes_xpath_expression (html_document,
+            "//div[@class]");
+    xmlNodePtr slides = NULL;
+    xmlNodeSetPtr node_set = NULL;
+    size_t matching_classes_len = 0;
+
+    node_set = xpath_result->nodesetval;
+    if (!node_set) {
+        fprintf(stderr, "No match\n");
+        return NULL;
+    }
+    for (int i = 0; i < node_set->nodeNr; i++) {
+        xmlNodePtr node = node_set->nodeTab[i];
+        nodes = loop_search_class (node, nodes, "slides", &matching_classes_len);
+    }
+    if (nodes) {
+        slides = nodes[0];
+    }
+    if (xpath_result) {
+        xmlXPathFreeObject(xpath_result);
+    }
+    return slides;
+}
+
+static xmlNodePtr
+mg_backend_readmng_retrieve_thumbnail_from_li (MgBackendReadmng *self, xmlNodePtr current_li) {
+    size_t thumbnail_len = 0;
+    xmlNodePtr *thumbnail = find_class (current_li, "thumbnail",
+            &thumbnail_len, NULL, 1);
+    if (thumbnail_len) return thumbnail[0];
+    return NULL;
+}
+
+static xmlNodePtr
+mg_backend_readmng_retrieve_title_from_li (MgBackendReadmng *self, xmlNodePtr li) {
+    size_t title_len = 0;
+    xmlNodePtr *title = find_class (li, "title", &title_len, NULL, 1);
+    if (title_len) return title[0];
+    return NULL;
+}
+
+static MgManga **
+mg_backend_readmng_extract_manga_info_from_current_li (MgBackendReadmng *self, 
+    MgManga **mangas, xmlNodePtr current_li, size_t *len) {
+
+    xmlNodePtr thumbnail = mg_backend_readmng_retrieve_thumbnail_from_li (self, current_li);
+    xmlNodePtr title = mg_backend_readmng_retrieve_title_from_li (self, current_li);
+    xmlNodePtr img;
+
+    if (thumbnail && title && (img = mg_backend_readmng_retrieve_img_from_thumbnail (self, thumbnail))) {
+        (*len)++;
+        mangas = g_realloc(mangas, sizeof *mangas * *len);
+        mangas[*len-1] = mg_manga_new (get_attr (img, "src"), (char *)xmlNodeGetContent (title));
+    }
+    return mangas;
+}
+
+static xmlNodePtr
+mg_backend_readmng_retrieve_img_from_thumbnail (MgBackendReadmng *self, xmlNodePtr thumbnail) {
+    for (xmlNodePtr child = thumbnail->children; child; child=child->next) {
+        if (!strcmp((char *)child->name, "img")) {
+            return child;
+        }
+    }
+    return NULL;
+}

src/manga.c

@@ -0,0 +1,128 @@
+#include <glib-object.h>
+
+#include <manga.h>
+#include <openmg/manga.h>
+
+struct _MgManga {
+    GObject parent_instance;
+    char *image_url;
+    char *title;
+};
+
+G_DEFINE_TYPE (MgManga, mg_manga, G_TYPE_OBJECT)
+
+typedef enum {
+    MG_MANGA_IMAGE_URL = 1,
+    MG_MANGA_TITLE,
+    MG_MANGA_N_PROPERTIES
+} MgMangaProperties;
+
+static GParamSpec *manga_properties[MG_MANGA_N_PROPERTIES] = { NULL, };
+
+static void
+mg_manga_set_property (GObject *object,
+        guint property_id,
+        const GValue *value,
+        GParamSpec *pspec);
+static void
+mg_manga_get_property (GObject *object,
+        guint property_id,
+        GValue *value,
+        GParamSpec *pspec);
+
+static void
+mg_manga_class_init (MgMangaClass *class) {
+    GObjectClass *object_class = G_OBJECT_CLASS (class);
+    object_class->set_property = mg_manga_set_property;
+    object_class->get_property = mg_manga_get_property;
+
+    manga_properties[MG_MANGA_IMAGE_URL] = g_param_spec_string ("image_url",
+            "ImageURL",
+            "Url of the image.",
+            NULL,
+            G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
+    manga_properties[MG_MANGA_TITLE] = g_param_spec_string ("title",
+            "Title",
+            "Title of the manga.",
+            NULL,
+            G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
+
+    g_object_class_install_properties (object_class,
+            MG_MANGA_N_PROPERTIES,
+            manga_properties);
+}
+
+static void
+mg_manga_init (MgManga *self) {
+}
+
+char *
+mg_manga_get_image_url(MgManga *self) {
+    GValue value = G_VALUE_INIT;
+    g_value_init (&value, G_TYPE_STRING);
+    g_object_get_property (G_OBJECT (self),
+            "image_url",
+            &value);
+    return g_value_dup_string (&value);
+}
+
+char *
+mg_manga_get_title(MgManga *self) {
+    GValue value = G_VALUE_INIT;
+    g_value_init (&value, G_TYPE_STRING);
+    g_object_get_property (G_OBJECT (self),
+            "title",
+            &value);
+    return g_value_dup_string (&value);
+}
+
+static void
+mg_manga_set_property (GObject *object,
+        guint property_id,
+        const GValue *value,
+        GParamSpec *pspec) {
+    MgManga *self = MG_MANGA (object);
+    switch ((MgMangaProperties) property_id) {
+        case MG_MANGA_IMAGE_URL:
+            g_free (self->image_url);
+            self->image_url = g_value_dup_string (value);
+            break;
+        case MG_MANGA_TITLE:
+            g_free (self->title);
+            self->title = g_value_dup_string (value);
+            break;
+        default:
+            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+            break;
+    }
+}
+
+static void
+mg_manga_get_property (GObject *object,
+        guint property_id,
+        GValue *value,
+        GParamSpec *pspec) {
+    MgManga *self = MG_MANGA (object);
+    switch ((MgMangaProperties) property_id) {
+        case MG_MANGA_IMAGE_URL:
+            g_value_set_string (value, self->image_url);
+            break;
+        case MG_MANGA_TITLE:
+            g_value_set_string (value, self->title);
+            break;
+        default:
+            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+            break;
+    }
+}
+
+MgManga *
+mg_manga_new (const char *const image_url, const char *const title) {
+    MgManga *self = NULL;
+    self = (MG_MANGA) (g_object_new (MG_TYPE_MANGA, NULL));
+    self->image_url = alloc_string (strlen (image_url));
+    self->title = alloc_string (strlen (title));
+    copy_substring (image_url, self->image_url, strlen(image_url) + 1, 0, strlen (image_url));
+    copy_substring (title, self->title, strlen(title) + 1, 0, strlen (title));
+    return self;
+}