/*

  * Copyright (C) 2010  J. Ali Harlow <ali@juiblex.co.uk>

  *

  * This program is free software; you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation; either version 2 of the License, or

  * (at your option) any later version.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  * GNU General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License along

  * with this program; if not, write to the Free Software Foundation, Inc.,

  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

  */

 #include "config.h"

 #include <stdlib.h>

 #include <string.h>

 #ifdef WIN32

 #include <windows.h>

 #endif

 #include <glib.h>

 #include <gtk/gtk.h>

 #include <plover-gtk/packagestore.h>

 #include <plover-gtk/packagefilestore.h>

 #include "app-manager.h"

 #ifdef WIN32

 static BOOL CALLBACK plover_applications_visible_callback(HMODULE module,

   const char *type,char *name,LONG_PTR param)

 {

     gboolean *visible=(void *)param;

     if (!IS_INTRESOURCE(name) && !strcmp(name,"MAINICON"))

 	*visible=TRUE;

     return !*visible;

 }

 #endif

 static gboolean plover_applications_visible_func(GtkTreeModel *model,

   GtkTreeIter *iter,gpointer data)

 {

     /* Visible if row is non-empty and package contains a .desktop file

      * in /usr/share/applications (UNIX) or package contains a .exe file

      * which has a default application icon (MS-Windows).

      */

     PloverPackage *package;

     GtkTreeModel *file_store;

     GtkTreeIter fi;

     gchar *name;

 #ifdef WIN32

     HMODULE module;

     DWORD flags=

 #ifdef LOAD_LIBRARY_AS_IMAGE_RESOURCE

       LOAD_LIBRARY_AS_IMAGE_RESOURCE|

 #endif

       LOAD_LIBRARY_AS_DATAFILE;

 #else

     gchar *dir;

 #endif

     gboolean visible=FALSE;

     gtk_tree_model_get(model,iter,PLOVER_PACKAGE_STORE_OBJ_COLUMN,&package,-1);

     if (package)

     {

 	file_store=

 	  GTK_TREE_MODEL(plover_package_file_store_new_from_package(package));

 	if (gtk_tree_model_get_iter_first(file_store,&fi))

 	{

 	    do

 	    {

 		gtk_tree_model_get(file_store,&fi,

 		  PLOVER_PACKAGE_FILE_STORE_NAME_COLUMN,&name,-1);

 #ifdef WIN32

 		if (g_str_has_suffix(name,".exe"))

 		{

 		    module=LoadLibraryExA(name,NULL,flags);

 		    if (module)

 		    {

 			(void)EnumResourceNamesA(module,RT_ICON,

 			  plover_applications_visible_callback,

 			  (LONG_PTR)&visible);

 			if (!visible)

 			    (void)EnumResourceNamesA(module,RT_GROUP_ICON,

 			      plover_applications_visible_callback,

 			      (LONG_PTR)&visible);

 			FreeLibrary(module);

 		    }

 		}

 #else

 		dir=g_path_get_dirname(name);

 		if (!strcmp(dir,"/usr/share/applications") &&

 		  g_str_has_suffix(name,".desktop"))

 		    visible=TRUE;

 		g_free(dir);

 #endif

 		g_free(name);

 	    } while(!visible && gtk_tree_model_iter_next(file_store,&fi));

 	}

 	g_object_unref(file_store);

     }

     g_object_unref(package);

     return visible;

 }

 GtkTreeModel *plover_applications_model_new(GtkTreeModel *installed)

 {

     GtkTreeModel *model;

     model=gtk_tree_model_filter_new(installed,NULL);

     gtk_tree_model_filter_set_visible_func(GTK_TREE_MODEL_FILTER(model),

       plover_applications_visible_func,NULL,NULL);

     return model;

 }