Experimental implementation of sc_goto

config.c

@@ -30,8 +30,8 @@ config_load_default(void)
   girara_shortcut_add(Zathura.UI.session, 0,                GDK_o,          NULL, sc_focus_inputbar,    NORMAL,              0,               &(":open "));
   girara_shortcut_add(Zathura.UI.session, 0,                GDK_O,          NULL, sc_focus_inputbar,    NORMAL,              APPEND_FILEPATH, &(":open "));
   girara_shortcut_add(Zathura.UI.session, 0,                GDK_f,          NULL, sc_follow,            NORMAL,              0,               NULL);
-  girara_shortcut_add(Zathura.UI.session, 0,                0,              "gg", sc_goto,              NORMAL | FULLSCREEN, 0,               NULL);
-  girara_shortcut_add(Zathura.UI.session, 0,                0,              "G",  sc_goto,              NORMAL | FULLSCREEN, 0,               NULL);
+  girara_shortcut_add(Zathura.UI.session, 0,                0,              "gg", sc_goto,              NORMAL | FULLSCREEN, TOP,             NULL);
+  girara_shortcut_add(Zathura.UI.session, 0,                0,              "G",  sc_goto,              NORMAL | FULLSCREEN, BOTTOM,          NULL);
   girara_shortcut_add(Zathura.UI.session, 0,                GDK_J,          NULL, sc_navigate,          NORMAL,              NEXT,            NULL);
   girara_shortcut_add(Zathura.UI.session, 0,                GDK_K,          NULL, sc_navigate,          NORMAL,              PREVIOUS,        NULL);
   girara_shortcut_add(Zathura.UI.session, GDK_MOD1_MASK,    GDK_Right,      NULL, sc_navigate,          NORMAL,              NEXT,            NULL);

shortcuts.c

@@ -66,6 +66,32 @@ sc_follow(girara_session_t* session, girara_argument_t* argument, unsigned int t
 bool
 sc_goto(girara_session_t* session, girara_argument_t* argument, unsigned int t)
 {
+  if (!session || !argument) {
+    return false;
+  }
+
+  if (argument->n == TOP) {
+    girara_argument_t arg = { TOP, NULL };
+    sc_scroll(session, &arg, 0);
+
+    return false;
+  } else {
+    if (t == 0) {
+      girara_argument_t arg = { BOTTOM, NULL };
+      sc_scroll(session, &arg, 0);
+
+      return true;
+    }
+
+    unsigned int number_of_pages = Zathura.document->number_of_pages;
+
+    if (t > 0 && t <= number_of_pages)  {
+      GtkAdjustment* adjustment = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(Zathura.UI.session->gtk.view));
+      unsigned int offset = Zathura.document->pages[t - 1]->offset * Zathura.document->scale;
+      gtk_adjustment_set_value(adjustment, offset);
+    }
+  }
+
   return false;
 }