Adding support to look the first image of the

manga...

include/openmg/backend/readmng.h

@@ -5,6 +5,7 @@
 #include <gio/gio.h>
 
 #include <openmg/manga.h>
+#include <openmg/chapter.h>
 
 G_BEGIN_DECLS;
 
@@ -32,5 +33,7 @@ mg_backend_readmng_get_featured_manga (MgBackendReadmng *self);
 void
 mg_backend_readmng_retrieve_manga_details (MgBackendReadmng *self,
         MgManga *manga);
+GListModel *
+mg_backend_readmng_get_chapter_images (MgBackendReadmng *self, MgMangaChapter *chapter);
 
 G_END_DECLS

include/openmg/chapter.h

@@ -12,5 +12,7 @@ mg_manga_chapter_new (const char *const title,
         const char *const url);
 char *
 mg_manga_chapter_get_title (MgMangaChapter *self);
+char *
+mg_manga_chapter_get_url (MgMangaChapter *self);
 
 G_END_DECLS

include/openmg/view/chapter_view.h

@@ -0,0 +1,6 @@
+#pragma once
+
+#include <adwaita.h>
+
+void
+setup_chapter_view (MgMangaChapter *chapter, AdwLeaflet *views_leaflet);

include/openmg/view/detail_manga.h

@@ -1,4 +1,7 @@
+#include <gtk/gtk.h>
+#include <adwaita.h>
+
 #include <openmg/manga.h>
 
 GtkBox *
-create_detail_view (MgManga *manga);
+create_detail_view (MgManga *manga, AdwLeaflet *views_leaflet);

include/openmg/view/list_view_chapter.h

@@ -1,5 +1,9 @@
+#pragma once
+
 #include <gtk/gtk.h>
+#include <adwaita.h>
+
 #include <openmg/manga.h>
 
 GtkListView *
-create_list_view_chapters (MgManga *manga);
+create_list_view_chapters (MgManga *manga, AdwLeaflet *views_leaflet);

meson.build

@@ -12,6 +12,7 @@ openmgdeps = [
 ]
 
 sources = [
+    'src/view/chapter_view.c',
     'src/view/list_view_chapter.c',
     'src/view/picture.c',
     'src/util/gobject_utility_extensions.c',

src/backend/readmng.c

@@ -1,3 +1,4 @@
+#include <gtk/gtk.h>
 #include <libxml/HTMLparser.h>
 
 #include <openmg/backend/readmng.h>
@@ -57,6 +58,12 @@ static MgMangaChapter *
 mg_backend_readmng_loop_li_chapter (
         MgBackendReadmng *self,
         xmlNodePtr li);
+static GListModel *
+mg_backend_readmng_parse_page (MgBackendReadmng *self,
+        xmlDocPtr html_document);
+static xmlDocPtr
+mg_backend_readmng_fetch_page_url (MgBackendReadmng *self,
+        MgMangaChapter *chapter);
 static GListStore *
 mg_backend_readmng_recover_chapter_list (MgBackendReadmng *self,
         xmlDocPtr html_document_details);
@@ -147,6 +154,67 @@ mg_backend_readmng_get_property (GObject *object,
     }
 }
 
+GListModel *
+mg_backend_readmng_get_chapter_images (MgBackendReadmng *self, MgMangaChapter *chapter) {
+    GListModel *images;
+    xmlDocPtr html_document;
+    html_document = mg_backend_readmng_fetch_page_url (self, chapter);
+    images = mg_backend_readmng_parse_page (self, html_document);
+
+    xmlFreeDoc (html_document);
+    return images;
+}
+
+static GListModel *
+mg_backend_readmng_parse_page (MgBackendReadmng *self,
+        xmlDocPtr html_document) {
+    GListModel *images = G_LIST_MODEL 
+        (gtk_string_list_new (NULL));
+
+    MgUtilXML *xml_utils = self->xml_utils;
+    xmlXPathObjectPtr xpath_result = NULL;
+    xmlNodeSetPtr node_set = NULL;
+    xpath_result = mg_util_xml_get_nodes_xpath_expression (xml_utils,
+            html_document, "//img[@class]");
+    node_set = xpath_result->nodesetval;
+    if (!node_set) {
+        fprintf(stderr, "No match for images.\n");
+        return images;
+    }
+    for (int i = 0; i < node_set->nodeNr; i++) {
+        xmlNodePtr node = node_set->nodeTab[i];
+        const char *image_url = mg_util_xml_get_attr (xml_utils, node, "src");    
+        gtk_string_list_append (GTK_STRING_LIST (images), (void *)image_url);
+    }
+
+    return images;
+}
+
+static xmlDocPtr
+mg_backend_readmng_fetch_page_url (MgBackendReadmng *self,
+        MgMangaChapter *chapter) {
+    size_t response_len = 0;
+    MgUtilSoup *util_soup = mg_util_soup_new ();
+    char *url = mg_manga_chapter_get_url (chapter);
+    size_t concat_all_pages_len;
+    char *concated_url;
+
+    concat_all_pages_len = snprintf (NULL, 0, "%s/all-pages", url);
+    concated_url = g_malloc 
+        (sizeof *concated_url * (concat_all_pages_len + 1));
+    snprintf (concated_url, concat_all_pages_len + 1,
+            "%s/all-pages", url);
+
+    const char *html_response = mg_util_soup_get_request (util_soup, concated_url,
+            &response_len);
+    return htmlReadMemory (html_response, response_len,
+            NULL, NULL,
+            HTML_PARSE_RECOVER | HTML_PARSE_NODEFDTD
+            | HTML_PARSE_NOERROR | HTML_PARSE_NOWARNING );
+
+}
+
+
 GListStore *
 mg_backend_readmng_get_featured_manga (MgBackendReadmng *self) {
     GListStore *mangas;
@@ -175,10 +243,10 @@ mg_backend_readmng_retrieve_manga_details (MgBackendReadmng *self,
     if (mg_manga_has_details (manga)) {
         goto cleanup_mg_backend_readmng_retrieve_manga_details;
     }
-    
+
     xml_utils = self->xml_utils;
     html_document = mg_backend_readmng_fetch_xml_details (self,
-        manga);
+            manga);
     xpath_result = mg_util_xml_get_nodes_xpath_expression (xml_utils,
             html_document, "//li[@class]");
     node_set = xpath_result->nodesetval;
@@ -205,7 +273,7 @@ cleanup_mg_backend_readmng_retrieve_manga_details:
 static GListStore *
 mg_backend_readmng_recover_chapter_list (MgBackendReadmng *self,
         xmlDocPtr html_document_details) {
-        MgUtilXML *xml_utils = self->xml_utils;
+    MgUtilXML *xml_utils = self->xml_utils;
     xmlXPathObjectPtr xpath_result = NULL;
     xmlNodeSetPtr node_set = NULL;
     xmlNodePtr *uls = NULL;

src/chapter.c

@@ -160,3 +160,11 @@ mg_manga_chapter_get_title (MgMangaChapter *self) {
     g_object_get_property (G_OBJECT (self), "title", &value);
     return g_value_dup_string (&value);
 }
+
+char *
+mg_manga_chapter_get_url (MgMangaChapter *self) {
+    GValue value = G_VALUE_INIT;
+    g_value_init (&value, G_TYPE_STRING);
+    g_object_get_property (G_OBJECT (self), "url", &value);
+    return g_value_dup_string (&value);
+}

src/view/chapter_view.c

@@ -0,0 +1,64 @@
+#include <gtk/gtk.h>
+
+#include <openmg/chapter.h>
+#include <openmg/view/chapter_view.h>
+#include <openmg/view/picture.h>
+#include <openmg/util/gobject_utility_extensions.h>
+#include <openmg/util/string.h>
+#include <openmg/backend/readmng.h>
+
+static void
+fire_zoom (GtkGestureZoom *zoom,
+        gdouble scale,
+        gpointer user_data);
+
+typedef struct {
+    guint current_page;
+    GListModel *pages; 
+    GtkPicture *current_picture;
+} ChapterVisorData;
+void
+setup_chapter_view (MgMangaChapter *chapter, AdwLeaflet *views_leaflet) {
+    MgBackendReadmng *readmng = mg_backend_readmng_new ();
+    MgUtilString *string_util = mg_util_string_new ();
+    GtkBox *chapter_view_container = GTK_BOX (gtk_box_new (GTK_ORIENTATION_VERTICAL, 0));
+    GtkScrolledWindow *zoomable_picture_container = GTK_SCROLLED_WINDOW (gtk_scrolled_window_new ());
+    GtkGesture *zoom_controller = gtk_gesture_zoom_new ();
+    GListModel *pages = mg_backend_readmng_get_chapter_images (readmng, chapter);
+    ChapterVisorData *chapter_visor_data = g_malloc (sizeof *chapter_visor_data);
+    GtkPicture *current_picture;
+    chapter_visor_data->current_page = 0;
+    chapter_visor_data->pages = pages;
+    const char *url_image_not_owned =
+    gtk_string_list_get_string (GTK_STRING_LIST 
+                                     (pages), 0);
+    char *url_image = mg_util_string_alloc_string (string_util, strlen (url_image_not_owned));
+    mg_util_string_copy_substring (string_util,
+            url_image_not_owned, url_image,
+            strlen(url_image_not_owned) + 1, 0,
+            strlen (url_image_not_owned));
+ 
+    current_picture = create_picture_from_url
+        (url_image, 200);
+    g_object_set_property_int (G_OBJECT (current_picture), "vexpand", 1);
+    g_object_set_property_int (G_OBJECT (current_picture), "hexpand", 1);
+    chapter_visor_data->current_picture =
+        current_picture;
+    gtk_scrolled_window_set_child (zoomable_picture_container, GTK_WIDGET (current_picture));
+
+
+    gtk_widget_add_controller (GTK_WIDGET (zoomable_picture_container),
+            GTK_EVENT_CONTROLLER (zoom_controller));
+    g_signal_connect (G_OBJECT (zoom_controller), "scale-changed", G_CALLBACK (fire_zoom), NULL);
+
+    gtk_box_append (chapter_view_container, GTK_WIDGET (zoomable_picture_container));
+    adw_leaflet_append (views_leaflet, GTK_WIDGET (chapter_view_container));
+    adw_leaflet_navigate (views_leaflet, ADW_NAVIGATION_DIRECTION_FORWARD);
+}
+
+static void
+fire_zoom (GtkGestureZoom *zoom,
+        gdouble scale,
+        gpointer user_data) {
+    // Do something. 
+}

src/view/detail_manga.c

@@ -48,7 +48,7 @@ toggle_folded (GtkButton *toggle_folded_button,
 }
 
 GtkBox *
-create_detail_view (MgManga *manga) {
+create_detail_view (MgManga *manga, AdwLeaflet *views_leaflet) {
     MgBackendReadmng *readmng = mg_backend_readmng_new ();
     GtkWidget *scroll;
     GtkBox *detail_view = GTK_BOX (gtk_box_new (GTK_ORIENTATION_VERTICAL, 0));
@@ -73,7 +73,7 @@ create_detail_view (MgManga *manga) {
     g_object_set_property_int (G_OBJECT (scroll), "vexpand", 1);
 
     mg_backend_readmng_retrieve_manga_details (readmng, manga);
-    chapter_list = create_list_view_chapters (manga);
+    chapter_list = create_list_view_chapters (manga, views_leaflet);
 
     
     g_signal_connect (G_OBJECT (toggle_folded_button), "clicked", G_CALLBACK (toggle_folded), foldable_manga_data);

src/view/list_view_chapter.c

@@ -4,14 +4,17 @@
 #include <openmg/chapter.h>
 #include <openmg/backend/readmng.h>
 #include <openmg/view/list_view_chapter.h>
+#include <openmg/view/chapter_view.h>
 
+static void
+activate_chapter (GtkListView *list_view, guint position, gpointer user_data);
 static void
 setup_list_view_chapter_list (GtkSignalListItemFactory *factory,
         GtkListItem *list_item,
         gpointer user_data);
 
 GtkListView *
-create_list_view_chapters (MgManga *manga) {
+create_list_view_chapters (MgManga *manga, AdwLeaflet *views_leaflet) {
     GListStore *manga_chapter_list = NULL;
     GtkListView *list_view_chapters = NULL;
     GtkSingleSelection *selection = NULL;
@@ -28,6 +31,9 @@ create_list_view_chapters (MgManga *manga) {
 
     list_view_chapters = GTK_LIST_VIEW (gtk_list_view_new (GTK_SELECTION_MODEL (selection),
                 factory));
+    gtk_list_view_set_single_click_activate (list_view_chapters, 1);
+    g_signal_connect (G_OBJECT (list_view_chapters), "activate",
+            G_CALLBACK (activate_chapter), views_leaflet);
 
     return list_view_chapters;
 }
@@ -47,3 +53,13 @@ setup_list_view_chapter_list (GtkSignalListItemFactory *factory,
     gtk_box_append (box, GTK_WIDGET (title));
     gtk_list_item_set_child (list_item, GTK_WIDGET (box));
 }
+
+static void
+activate_chapter (GtkListView *list_view, guint position, gpointer user_data) {
+    GtkSingleSelection *selection = GTK_SINGLE_SELECTION
+        (gtk_list_view_get_model (list_view));
+    GListModel *chapters = gtk_single_selection_get_model (selection);
+    MgMangaChapter *chapter = MG_MANGA_CHAPTER (g_list_model_get_item (chapters, position));
+    AdwLeaflet *views_leaflet = ADW_LEAFLET (user_data);
+    setup_chapter_view (chapter, views_leaflet);
+}

src/view/list_view_manga.c

@@ -39,7 +39,7 @@ manga_selected (GtkListView *list_view,
                 ADW_NAVIGATION_DIRECTION_FORWARD);
     }
 
-    GtkBox *detail_view = create_detail_view (manga);
+    GtkBox *detail_view = create_detail_view (manga, views_leaflet);
     adw_leaflet_append (views_leaflet, GTK_WIDGET (detail_view));
     adw_leaflet_navigate (views_leaflet, ADW_NAVIGATION_DIRECTION_FORWARD);
 }