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#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <libxml/tree.h>
#include <libxml/parser.h>
#include "mainmenu.h"
#include "menubuilder.h"
static GPtrArray *load_websites(const char *path);
static gint title_cmp(gconstpointer a, gconstpointer b);
static gchar *get_site_title(gchar *sitemenu, gsize sitemenu_len);
char *build_mainmenu(const char *path) {
g_log(LIBWEBVI_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, "building main menu %s", path);
MenuBuilder *menu_builder = menu_builder_create();
menu_builder_set_title(menu_builder, "Select video source");
GPtrArray *websites = load_websites(path);
menu_builder_append_link_list(menu_builder, websites);
char *menu = menu_builder_to_string(menu_builder);
g_ptr_array_free(websites, TRUE);
menu_builder_delete(menu_builder);
return menu;
}
/*
* Load known websites from the given directory.
*
* Traverses each subdirectory looking for file called menu.xml. If
* found, reads the file to find site title. Returns an array of
* titles and wvt references. The caller must call g_ptr_array_free()
* on the returned array (the content of the array will be freed
* automatically).
*/
GPtrArray *load_websites(const char *path) {
GPtrArray *websites = g_ptr_array_new_with_free_func(g_free_link);
GDir *dir = g_dir_open(path, 0, NULL);
if (!dir)
return websites;
const gchar *dirname;
while ((dirname = g_dir_read_name(dir))) {
gchar *menudir = g_strconcat(path, "/", dirname, NULL);
if (g_file_test(menudir, G_FILE_TEST_IS_DIR)) {
gchar *menufile = g_strconcat(menudir, "/menu.xml", NULL);
g_log(LIBWEBVI_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, "processing website menu %s", menufile);
gchar *sitemenu = NULL;
gsize sitemenu_len;
if (g_file_get_contents(menufile, &sitemenu, &sitemenu_len, NULL)) {
gchar *title = get_site_title(sitemenu, sitemenu_len);
if (!title) {
title = g_strdup(dirname);
}
gchar *href = g_strconcat("wvt://", menufile, NULL);
Link *menuitem = link_create(href, title, LINK_ACTION_PARSE);
g_ptr_array_add(websites, menuitem);
g_free(href);
g_free(title);
g_free(sitemenu);
}
g_free(menufile);
}
g_free(menudir);
}
g_dir_close(dir);
g_ptr_array_sort(websites, title_cmp);
return websites;
}
gint title_cmp(gconstpointer a, gconstpointer b) {
// a and b are pointers to Link pointers!
Link *link1 = *(Link **)a;
Link *link2 = *(Link **)b;
return g_ascii_strcasecmp(link_get_title(link1),
link_get_title(link2));
}
/*
* Parse the contents of website menu.xml and return site's title.
*/
gchar *get_site_title(gchar *menuxml, gsize menuxml_len) {
gchar *title = NULL;
xmlDocPtr doc = xmlReadMemory(menuxml, menuxml_len, "", NULL,
XML_PARSE_NOWARNING | XML_PARSE_NONET);
if (!doc)
return NULL;
xmlNode *root = xmlDocGetRootElement(doc);
xmlNode *node = root->children;
while (node) {
if (node->type == XML_ELEMENT_NODE &&
xmlStrEqual(node->name, BAD_CAST "title")) {
xmlChar *xmltitle = xmlNodeGetContent(node);
if (xmltitle) {
title = g_strdup((gchar *)xmltitle);
xmlFree(xmltitle);
break;
}
}
node = node->next;
}
xmlFreeDoc(doc);
return title;
}
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