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grl-youtube.c
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grl-youtube.c
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/*
* Copyright (C) 2010, 2011 Igalia S.L.
* Copyright (C) 2011 Intel Corporation.
*
* Contact: Iago Toral Quiroga <itoral@igalia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; version 2.1 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <grilo.h>
#include <glib/gi18n-lib.h>
#include <net/grl-net.h>
#include <gdata/gdata.h>
#include <totem-pl-parser.h>
#include <string.h>
#include "grl-youtube.h"
enum {
PROP_0,
PROP_SERVICE,
};
#define GRL_YOUTUBE_SOURCE_GET_PRIVATE(object) \
(G_TYPE_INSTANCE_GET_PRIVATE((object), \
GRL_YOUTUBE_SOURCE_TYPE, \
GrlYoutubeSourcePriv))
/* --------- Logging -------- */
#define GRL_LOG_DOMAIN_DEFAULT youtube_log_domain
GRL_LOG_DOMAIN_STATIC(youtube_log_domain);
/* ----- Root categories ---- */
#define YOUTUBE_ROOT_NAME "YouTube"
#define ROOT_DIR_FEEDS_INDEX 0
#define ROOT_DIR_CATEGORIES_INDEX 1
#define YOUTUBE_FEEDS_ID "standard-feeds"
#define YOUTUBE_FEEDS_NAME N_("Standard feeds")
#define YOUTUBE_CATEGORIES_ID "categories"
#define YOUTUBE_CATEGORIES_NAME N_("Categories")
#define YOUTUBE_CATEGORIES_URL "http://gdata.youtube.com/schemas/2007/categories.cat"
/* ----- Feeds categories ---- */
#define YOUTUBE_TOP_RATED_ID (YOUTUBE_FEEDS_ID "/0")
#define YOUTUBE_TOP_RATED_NAME N_("Top Rated")
#define YOUTUBE_TOP_FAVS_ID (YOUTUBE_FEEDS_ID "/1")
#define YOUTUBE_TOP_FAVS_NAME N_("Top Favorites")
#define YOUTUBE_MOST_VIEWED_ID (YOUTUBE_FEEDS_ID "/2")
#define YOUTUBE_MOST_VIEWED_NAME N_("Most Viewed")
#define YOUTUBE_MOST_POPULAR_ID (YOUTUBE_FEEDS_ID "/3")
#define YOUTUBE_MOST_POPULAR_NAME N_("Most Popular")
#define YOUTUBE_MOST_RECENT_ID (YOUTUBE_FEEDS_ID "/4")
#define YOUTUBE_MOST_RECENT_NAME N_("Most Recent")
#define YOUTUBE_MOST_DISCUSSED_ID (YOUTUBE_FEEDS_ID "/5")
#define YOUTUBE_MOST_DISCUSSED_NAME N_("Most Discussed")
#define YOUTUBE_MOST_LINKED_ID (YOUTUBE_FEEDS_ID "/6")
#define YOUTUBE_MOST_LINKED_NAME N_("Most Linked")
#define YOUTUBE_MOST_RESPONDED_ID (YOUTUBE_FEEDS_ID "/7")
#define YOUTUBE_MOST_RESPONDED_NAME N_("Most Responded")
#define YOUTUBE_FEATURED_ID (YOUTUBE_FEEDS_ID "/8")
#define YOUTUBE_FEATURED_NAME N_("Recently Featured")
#define YOUTUBE_MOBILE_ID (YOUTUBE_FEEDS_ID "/9")
#define YOUTUBE_MOBILE_NAME N_("Watch On Mobile")
/* --- Other --- */
#define YOUTUBE_MAX_CHUNK 50
#define YOUTUBE_VIDEO_INFO_URL "http://www.youtube.com/get_video_info?video_id=%s"
#define YOUTUBE_VIDEO_URL "http://www.youtube.com/get_video?video_id=%s&t=%s&asv="
#define YOUTUBE_CATEGORY_URL "http://gdata.youtube.com/feeds/api/videos/-/%s?&start-index=%s&max-results=%s"
#define YOUTUBE_WATCH_URL "http://www.youtube.com/watch?v="
#define YOUTUBE_VIDEO_MIME "application/x-shockwave-flash"
#define YOUTUBE_SITE_URL "www.youtube.com"
/* --- Plugin information --- */
#define PLUGIN_ID YOUTUBE_PLUGIN_ID
#define SOURCE_ID "grl-youtube"
#define SOURCE_NAME "YouTube"
#define SOURCE_DESC _("A source for browsing and searching YouTube videos")
/* --- Data types --- */
typedef void (*AsyncReadCbFunc) (gchar *data, gpointer user_data);
typedef void (*BuildMediaFromEntryCbFunc) (GrlMedia *media, gpointer user_data);
typedef struct {
gchar *id;
gchar *name;
guint count;
} CategoryInfo;
typedef struct {
GrlSource *source;
GCancellable *cancellable;
guint operation_id;
const gchar *container_id;
GList *keys;
GrlResolutionFlags flags;
guint skip;
guint count;
GrlSourceResultCb callback;
gpointer user_data;
guint error_code;
CategoryInfo *category_info;
guint emitted;
guint matches;
guint ref_count;
} OperationSpec;
typedef struct {
GSourceFunc callback;
gpointer user_data;
} BuildCategorySpec;
typedef struct {
AsyncReadCbFunc callback;
gchar *url;
gpointer user_data;
} AsyncReadCb;
typedef struct {
GrlMedia *media;
GCancellable *cancellable;
BuildMediaFromEntryCbFunc callback;
gpointer user_data;
} SetMediaUrlAsyncReadCb;
typedef enum {
YOUTUBE_MEDIA_TYPE_ROOT,
YOUTUBE_MEDIA_TYPE_FEEDS,
YOUTUBE_MEDIA_TYPE_CATEGORIES,
YOUTUBE_MEDIA_TYPE_FEED,
YOUTUBE_MEDIA_TYPE_CATEGORY,
YOUTUBE_MEDIA_TYPE_VIDEO,
} YoutubeMediaType;
struct _GrlYoutubeSourcePriv {
GDataService *service;
GrlNetWc *wc;
};
#define YOUTUBE_CLIENT_ID "grilo"
static GrlYoutubeSource *grl_youtube_source_new (const gchar *api_key,
const gchar *client_id,
const gchar *format);
static void grl_youtube_source_set_property (GObject *object,
guint propid,
const GValue *value,
GParamSpec *pspec);
static void grl_youtube_source_finalize (GObject *object);
gboolean grl_youtube_plugin_init (GrlRegistry *registry,
GrlPlugin *plugin,
GList *configs);
static const GList *grl_youtube_source_supported_keys (GrlSource *source);
static const GList *grl_youtube_source_slow_keys (GrlSource *source);
static void grl_youtube_source_search (GrlSource *source,
GrlSourceSearchSpec *ss);
static void grl_youtube_source_browse (GrlSource *source,
GrlSourceBrowseSpec *bs);
static void grl_youtube_source_resolve (GrlSource *source,
GrlSourceResolveSpec *rs);
static gboolean grl_youtube_test_media_from_uri (GrlSource *source,
const gchar *uri);
static void grl_youtube_get_media_from_uri (GrlSource *source,
GrlSourceMediaFromUriSpec *mfus);
static void grl_youtube_source_cancel (GrlSource *source,
guint operation_id);
static void produce_from_directory (CategoryInfo *dir, gint dir_size, OperationSpec *os);
/* ==================== Global Data ================= */
guint root_dir_size = 2;
CategoryInfo root_dir[] = {
{YOUTUBE_FEEDS_ID, YOUTUBE_FEEDS_NAME, 10},
{YOUTUBE_CATEGORIES_ID, YOUTUBE_CATEGORIES_NAME, -1},
{NULL, NULL, 0}
};
CategoryInfo feeds_dir[] = {
{YOUTUBE_TOP_RATED_ID, YOUTUBE_TOP_RATED_NAME, -1},
{YOUTUBE_TOP_FAVS_ID, YOUTUBE_TOP_FAVS_NAME, -1},
{YOUTUBE_MOST_VIEWED_ID, YOUTUBE_MOST_VIEWED_NAME, -1},
{YOUTUBE_MOST_POPULAR_ID, YOUTUBE_MOST_POPULAR_NAME, -1},
{YOUTUBE_MOST_RECENT_ID, YOUTUBE_MOST_RECENT_NAME, -1},
{YOUTUBE_MOST_DISCUSSED_ID, YOUTUBE_MOST_DISCUSSED_NAME, -1},
{YOUTUBE_MOST_LINKED_ID, YOUTUBE_MOST_LINKED_NAME, -1},
{YOUTUBE_MOST_RESPONDED_ID, YOUTUBE_MOST_RESPONDED_NAME, -1},
{YOUTUBE_FEATURED_ID, YOUTUBE_FEATURED_NAME, -1},
{YOUTUBE_MOBILE_ID, YOUTUBE_MOBILE_NAME, -1},
{NULL, NULL, 0}
};
CategoryInfo *categories_dir = NULL;
static GrlYoutubeSource *ytsrc = NULL;
/* =================== YouTube Plugin =============== */
gboolean
grl_youtube_plugin_init (GrlRegistry *registry,
GrlPlugin *plugin,
GList *configs)
{
gchar *api_key;
gchar *format;
GrlConfig *config;
gint config_count;
GrlYoutubeSource *source;
GRL_LOG_DOMAIN_INIT (youtube_log_domain, "youtube");
GRL_DEBUG ("youtube_plugin_init");
/* Initialize i18n */
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
if (!configs) {
GRL_INFO ("Configuration not provided! Plugin not loaded");
return FALSE;
}
config_count = g_list_length (configs);
if (config_count > 1) {
GRL_INFO ("Provided %d configs, but will only use one", config_count);
}
config = GRL_CONFIG (configs->data);
api_key = grl_config_get_api_key (config);
if (!api_key) {
GRL_INFO ("Missing API Key, cannot load plugin");
return FALSE;
}
format = grl_config_get_string (config, "format");
#if !GLIB_CHECK_VERSION(2,32,0)
/* libgdata needs this */
if (!g_thread_supported()) {
g_thread_init (NULL);
}
#endif
source = grl_youtube_source_new (api_key, YOUTUBE_CLIENT_ID, format);
grl_registry_register_source (registry,
plugin,
GRL_SOURCE (source),
NULL);
g_free (api_key);
g_free (format);
return TRUE;
}
GRL_PLUGIN_REGISTER (grl_youtube_plugin_init,
NULL,
PLUGIN_ID);
/* ================== YouTube GObject ================ */
G_DEFINE_TYPE (GrlYoutubeSource, grl_youtube_source, GRL_TYPE_SOURCE);
static GrlYoutubeSource *
grl_youtube_source_new (const gchar *api_key, const gchar *client_id, const gchar *format)
{
GrlYoutubeSource *source;
GDataYouTubeService *service;
GIcon *icon;
GFile *file;
GRL_DEBUG ("grl_youtube_source_new");
#ifdef HAVE_LIBGDATA_0_9
service = gdata_youtube_service_new (api_key, NULL);
#else /* HAVE_LIBGDATA_0_9 */
service = gdata_youtube_service_new (api_key, client_id);
#endif /* !HAVE_LIBGDATA_0_9 */
if (!service) {
GRL_WARNING ("Failed to initialize gdata service");
return NULL;
}
file = g_file_new_for_uri ("resource:///org/gnome/grilo/plugins/youtube/channel-youtube.svg");
icon = g_file_icon_new (file);
g_object_unref (file);
/* Use auto-split mode because YouTube fails for queries
that request more than YOUTUBE_MAX_CHUNK results */
source = GRL_YOUTUBE_SOURCE (g_object_new (GRL_YOUTUBE_SOURCE_TYPE,
"source-id", SOURCE_ID,
"source-name", SOURCE_NAME,
"source-desc", SOURCE_DESC,
"auto-split-threshold",
YOUTUBE_MAX_CHUNK,
"yt-service", service,
"supported-media", GRL_MEDIA_TYPE_VIDEO,
"source-icon", icon,
NULL));
g_object_unref (icon);
ytsrc = source;
g_object_add_weak_pointer (G_OBJECT (source), (gpointer *) &ytsrc);
return source;
}
static void
grl_youtube_source_class_init (GrlYoutubeSourceClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GrlSourceClass *source_class = GRL_SOURCE_CLASS (klass);
gobject_class->set_property = grl_youtube_source_set_property;
gobject_class->finalize = grl_youtube_source_finalize;
source_class->supported_keys = grl_youtube_source_supported_keys;
source_class->slow_keys = grl_youtube_source_slow_keys;
source_class->cancel = grl_youtube_source_cancel;
source_class->search = grl_youtube_source_search;
source_class->browse = grl_youtube_source_browse;
source_class->resolve = grl_youtube_source_resolve;
source_class->test_media_from_uri = grl_youtube_test_media_from_uri;
source_class->media_from_uri = grl_youtube_get_media_from_uri;
g_object_class_install_property (gobject_class,
PROP_SERVICE,
g_param_spec_object ("yt-service",
"youtube-service",
"gdata youtube service object",
GDATA_TYPE_YOUTUBE_SERVICE,
G_PARAM_WRITABLE
| G_PARAM_CONSTRUCT_ONLY
| G_PARAM_STATIC_NAME));
g_type_class_add_private (klass, sizeof (GrlYoutubeSourcePriv));
}
static void
grl_youtube_source_init (GrlYoutubeSource *source)
{
source->priv = GRL_YOUTUBE_SOURCE_GET_PRIVATE (source);
}
static void
grl_youtube_source_set_property (GObject *object,
guint propid,
const GValue *value,
GParamSpec *pspec)
{
switch (propid) {
case PROP_SERVICE: {
GrlYoutubeSource *self;
self = GRL_YOUTUBE_SOURCE (object);
self->priv->service = g_value_get_object (value);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
}
}
static void
grl_youtube_source_finalize (GObject *object)
{
GrlYoutubeSource *self;
self = GRL_YOUTUBE_SOURCE (object);
g_clear_object (&self->priv->wc);
g_clear_object (&self->priv->service);
G_OBJECT_CLASS (grl_youtube_source_parent_class)->finalize (object);
}
/* ======================= Utilities ==================== */
static void
entry_parsed_cb (TotemPlParser *parser,
const char *uri,
GHashTable *metadata,
GrlMedia *media)
{
grl_media_set_url (media, uri);
}
static void
release_operation_data (guint operation_id)
{
GCancellable *cancellable = grl_operation_get_data (operation_id);
g_clear_object (&cancellable);
}
static OperationSpec *
operation_spec_new (void)
{
OperationSpec *os;
GRL_DEBUG ("Allocating new spec");
os = g_slice_new0 (OperationSpec);
os->ref_count = 1;
return os;
}
static void
operation_spec_unref (OperationSpec *os)
{
os->ref_count--;
if (os->ref_count == 0) {
g_clear_object (&os->cancellable);
g_slice_free (OperationSpec, os);
GRL_DEBUG ("freeing spec");
}
}
static void
operation_spec_ref (OperationSpec *os)
{
GRL_DEBUG ("Reffing spec");
os->ref_count++;
}
inline static GrlNetWc *
get_wc (void)
{
if (ytsrc && !ytsrc->priv->wc)
ytsrc->priv->wc = grl_net_wc_new ();
else if (!ytsrc)
return NULL;
return ytsrc->priv->wc;
}
static void
read_done_cb (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
AsyncReadCb *arc = (AsyncReadCb *) user_data;
GError *wc_error = NULL;
gchar *content = NULL;
grl_net_wc_request_finish (GRL_NET_WC (source_object),
res,
&content,
NULL,
&wc_error);
if (wc_error) {
if (wc_error->code != GRL_NET_WC_ERROR_CANCELLED) {
GRL_WARNING ("Failed to open '%s': %s", arc->url, wc_error->message);
}
arc->callback (NULL, arc->user_data);
g_error_free (wc_error);
} else {
arc->callback (content, arc->user_data);
}
g_free (arc->url);
g_slice_free (AsyncReadCb, arc);
}
static void
read_url_async (const gchar *url,
GCancellable *cancellable,
AsyncReadCbFunc callback,
gpointer user_data)
{
AsyncReadCb *arc;
GrlNetWc *wc;
wc = get_wc ();
if (!wc)
return;
arc = g_slice_new0 (AsyncReadCb);
arc->url = g_strdup (url);
arc->callback = callback;
arc->user_data = user_data;
GRL_DEBUG ("Opening async '%s'", url);
grl_net_wc_request_async (wc,
url,
cancellable,
read_done_cb,
arc);
}
static void
build_media_from_entry (GrlYoutubeSource *source,
GrlMedia *content,
GDataEntry *entry,
GCancellable *cancellable,
const GList *keys,
BuildMediaFromEntryCbFunc callback,
gpointer user_data)
{
GDataYouTubeVideo *video;
GDataMediaThumbnail *thumbnail;
GrlMedia *media;
GList *iter;
if (!content) {
media = grl_media_video_new ();
} else {
media = content;
}
video = GDATA_YOUTUBE_VIDEO (entry);
/* Make sure we set the media id in any case */
if (!grl_media_get_id (media)) {
grl_media_set_id (media, gdata_youtube_video_get_video_id (video));
}
iter = (GList *) keys;
while (iter) {
GrlKeyID key = GRLPOINTER_TO_KEYID (iter->data);
if (key == GRL_METADATA_KEY_TITLE) {
grl_media_set_title (media, gdata_entry_get_title (entry));
} else if (key == GRL_METADATA_KEY_DESCRIPTION) {
grl_media_set_description (media,
gdata_youtube_video_get_description (video));
} else if (key == GRL_METADATA_KEY_THUMBNAIL) {
GList *thumb_list;
thumb_list = gdata_youtube_video_get_thumbnails (video);
while (thumb_list) {
thumbnail = GDATA_MEDIA_THUMBNAIL (thumb_list->data);
grl_media_add_thumbnail (media,
gdata_media_thumbnail_get_uri (thumbnail));
thumb_list = g_list_next (thumb_list);
}
} else if (key == GRL_METADATA_KEY_PUBLICATION_DATE) {
GTimeVal date;
gint64 published = gdata_entry_get_published (entry);
date.tv_sec = (glong) published;
date.tv_usec = 0;
if (date.tv_sec != 0 || date.tv_usec != 0) {
GDateTime *date_time;
date_time = g_date_time_new_from_timeval_utc (&date);
grl_media_set_publication_date (media, date_time);
g_date_time_unref (date_time);
}
} else if (key == GRL_METADATA_KEY_DURATION) {
grl_media_set_duration (media, gdata_youtube_video_get_duration (video));
} else if (key == GRL_METADATA_KEY_MIME) {
grl_media_set_mime (media, YOUTUBE_VIDEO_MIME);
} else if (key == GRL_METADATA_KEY_SITE) {
grl_media_set_site (media, gdata_youtube_video_get_player_uri (video));
} else if (key == GRL_METADATA_KEY_EXTERNAL_URL) {
grl_media_set_external_url (media,
gdata_youtube_video_get_player_uri (video));
} else if (key == GRL_METADATA_KEY_RATING) {
gdouble average;
gdata_youtube_video_get_rating (video, NULL, NULL, NULL, &average);
grl_media_set_rating (media, average, 5.00);
} else if (key == GRL_METADATA_KEY_URL) {
TotemPlParser *parser;
TotemPlParserResult res;
parser = totem_pl_parser_new ();
g_signal_connect (parser, "entry-parsed",
G_CALLBACK (entry_parsed_cb), media);
res = totem_pl_parser_parse (parser,
(char *) gdata_youtube_video_get_player_uri (video),
FALSE);
if (res != TOTEM_PL_PARSER_RESULT_SUCCESS)
GRL_WARNING ("Failed to get video URL. totem-pl-parser error '%d'", res);
g_clear_object (&parser);
} else if (key == GRL_METADATA_KEY_EXTERNAL_PLAYER) {
GDataYouTubeContent *youtube_content;
youtube_content =
gdata_youtube_video_look_up_content (video,
"application/x-shockwave-flash");
if (youtube_content != NULL) {
const gchar *uri =
gdata_media_content_get_uri (GDATA_MEDIA_CONTENT (youtube_content));
grl_media_set_external_player (media, uri);
}
}
iter = g_list_next (iter);
}
callback (media, user_data);
}
static void
parse_categories (xmlDocPtr doc, xmlNodePtr node, BuildCategorySpec *bcs)
{
guint total = 0;
GList *all = NULL, *iter;
CategoryInfo *cat_info;
gchar *id;
guint index = 0;
GRL_DEBUG ("parse_categories");
while (node) {
cat_info = g_slice_new (CategoryInfo);
id = (gchar *) xmlGetProp (node, (xmlChar *) "term");
cat_info->id = g_strconcat (YOUTUBE_CATEGORIES_ID, "/", id, NULL);
cat_info->name = (gchar *) xmlGetProp (node, (xmlChar *) "label");
all = g_list_prepend (all, cat_info);
g_free (id);
node = node->next;
total++;
GRL_DEBUG (" Found category: '%d - %s'", index++, cat_info->name);
}
if (all) {
root_dir[ROOT_DIR_CATEGORIES_INDEX].count = total;
categories_dir = g_new0 (CategoryInfo, total + 1);
iter = all;
do {
cat_info = (CategoryInfo *) iter->data;
categories_dir[total - 1].id = cat_info->id ;
categories_dir[total - 1].name = (gchar *) g_dgettext (GETTEXT_PACKAGE,
cat_info->name);
categories_dir[total - 1].count = -1;
total--;
g_slice_free (CategoryInfo, cat_info);
iter = g_list_next (iter);
} while (iter);
g_list_free (all);
bcs->callback (bcs);
g_slice_free (BuildCategorySpec, bcs);
}
}
static void
build_categories_directory_read_cb (gchar *xmldata, gpointer user_data)
{
xmlDocPtr doc;
xmlNodePtr node;
if (!xmldata) {
g_critical ("Failed to build category directory (1)");
return;
}
doc = xmlReadMemory (xmldata, strlen (xmldata), NULL, NULL,
XML_PARSE_RECOVER | XML_PARSE_NOBLANKS);
if (!doc) {
g_critical ("Failed to build category directory (2)");
goto free_resources;
}
node = xmlDocGetRootElement (doc);
if (!node) {
g_critical ("Failed to build category directory (3)");
goto free_resources;
}
if (xmlStrcmp (node->name, (const xmlChar *) "categories")) {
g_critical ("Failed to build category directory (4)");
goto free_resources;
}
node = node->xmlChildrenNode;
if (!node) {
g_critical ("Failed to build category directory (5)");
goto free_resources;
}
parse_categories (doc, node, user_data);
free_resources:
xmlFreeDoc (doc);
}
static gint
get_feed_type_from_id (const gchar *feed_id)
{
gchar *tmp;
gchar *test;
gint feed_type;
tmp = g_strrstr (feed_id, "/");
if (!tmp) {
return -1;
}
tmp++;
feed_type = strtol (tmp, &test, 10);
if (*test != '\0') {
return -1;
}
return feed_type;
}
static const gchar *
get_category_term_from_id (const gchar *category_id)
{
gchar *term;
term = g_strrstr (category_id, "/");
if (!term) {
return NULL;
}
return ++term;
}
static gint
get_category_index_from_id (const gchar *category_id)
{
gint i;
for (i=0; i<root_dir[ROOT_DIR_CATEGORIES_INDEX].count; i++) {
if (!strcmp (categories_dir[i].id, category_id)) {
return i;
}
}
return -1;
}
static void
build_media_from_entry_resolve_cb (GrlMedia *media, gpointer user_data)
{
GrlSourceResolveSpec *rs = (GrlSourceResolveSpec *) user_data;
release_operation_data (rs->operation_id);
rs->callback (rs->source, rs->operation_id, media, rs->user_data, NULL);
}
static void
build_media_from_entry_search_cb (GrlMedia *media, gpointer user_data)
{
/*
* TODO: Async resolution of URL messes (or could mess) with the sorting,
* If we want to ensure a particular sorting or implement sorting
* mechanisms we should add code to handle that here so we emit items in
* the right order and not just when we got the URL resolved (would
* damage response time though).
*/
OperationSpec *os = (OperationSpec *) user_data;
guint remaining;
if (g_cancellable_is_cancelled (os->cancellable)) {
GRL_DEBUG ("%s: cancelled", __FUNCTION__);
return;
}
if (os->emitted < os->count) {
remaining = os->count - os->emitted - 1;
os->callback (os->source,
os->operation_id,
media,
remaining,
os->user_data,
NULL);
if (remaining == 0) {
GRL_DEBUG ("Unreffing spec in build_media_from_entry_search_cb");
operation_spec_unref (os);
} else {
os->emitted++;
}
}
}
static void
build_category_directory (BuildCategorySpec *bcs)
{
GRL_DEBUG (__FUNCTION__);
read_url_async (YOUTUBE_CATEGORIES_URL,
NULL,
build_categories_directory_read_cb,
bcs);
}
static void
resolve_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
GRL_DEBUG (__FUNCTION__);
GError *error = NULL;
GrlYoutubeSource *source;
GDataEntry *video;
GDataService *service;
GrlSourceResolveSpec *rs = (GrlSourceResolveSpec *) user_data;
source = GRL_YOUTUBE_SOURCE (rs->source);
service = GDATA_SERVICE (source->priv->service);
video = gdata_service_query_single_entry_finish (service, result, &error);
if (error) {
release_operation_data (rs->operation_id);
error->code = GRL_CORE_ERROR_RESOLVE_FAILED;
rs->callback (rs->source, rs->operation_id, rs->media, rs->user_data, error);
g_error_free (error);
} else {
build_media_from_entry (GRL_YOUTUBE_SOURCE (rs->source),
rs->media,
video,
grl_operation_get_data (rs->operation_id),
rs->keys,
build_media_from_entry_resolve_cb,
rs);
}
g_clear_object (&video);
}
static void
search_progress_cb (GDataEntry *entry,
guint index,
guint count,
gpointer user_data)
{
OperationSpec *os = (OperationSpec *) user_data;
/* Check if operation has been cancelled */
if (g_cancellable_is_cancelled (os->cancellable)) {
GRL_DEBUG ("%s: cancelled (%u, %u)", __FUNCTION__, index, count);
build_media_from_entry_search_cb (NULL, os);
return;
}
if (index < count) {
/* Keep track of the items we got here. Due to the asynchronous
* nature of build_media_from_entry(), when search_cb is invoked
* we have to check if we got as many results as we requested or
* not, and handle that situation properly */
os->matches++;
build_media_from_entry (GRL_YOUTUBE_SOURCE (os->source),
NULL,
entry,
os->cancellable,
os->keys,
build_media_from_entry_search_cb,
os);
} else {
GRL_WARNING ("Invalid index/count received grom libgdata, ignoring result");
}
/* The entry will be freed when freeing the feed in search_cb */
}
static void
search_cb (GObject *object, GAsyncResult *result, OperationSpec *os)
{
GDataFeed *feed;
GError *error = NULL;
gboolean need_extra_unref = FALSE;
GrlYoutubeSource *source = GRL_YOUTUBE_SOURCE (os->source);
GRL_DEBUG ("search_cb");
/* Check if operation was cancelled */
if (g_cancellable_is_cancelled (os->cancellable)) {
GRL_DEBUG ("Search operation has been cancelled");
os->callback (os->source, os->operation_id, NULL, 0, os->user_data, NULL);
operation_spec_unref (os);
/* Look for OPERATION_SPEC_REF_RATIONALE for details on the reason for this
* extra unref */
operation_spec_unref (os);
return;
}
feed = gdata_service_query_finish (source->priv->service, result, &error);
if (!error && feed) {
/* If we are browsing a category, update the count for it */
if (os->category_info) {
os->category_info->count = gdata_feed_get_total_results (feed);
}
/* Check if we got as many results as we requested */
if (os->matches < os->count) {
os->count = os->matches;
/* In case we are resolving URLs asynchronously, from now on
* results will be sent with appropriate remaining, but it can
* also be the case that we have sent all the results already
* and the last one was sent with remaining>0, in that case
* we should send a finishing message now. */
if (os->emitted == os->count) {
GRL_DEBUG ("sending finishing message");
os->callback (os->source, os->operation_id,
NULL, 0, os->user_data, NULL);
need_extra_unref = TRUE;
}
}
} else {
if (!error) {
error = g_error_new_literal (GRL_CORE_ERROR,
os->error_code,
_("Failed to get feed"));
} else {
error->code = os->error_code;
}
os->callback (os->source, os->operation_id, NULL, 0, os->user_data, error);
g_error_free (error);
need_extra_unref = TRUE;
}
g_clear_object (&feed);
GRL_DEBUG ("Unreffing spec in search_cb");
operation_spec_unref (os);
if (need_extra_unref) {
/* We did not free the spec in the emission callback, do it here */
GRL_DEBUG ("need extra spec unref in search_cb");
operation_spec_unref (os);
}
}
static gboolean
is_category_container (const gchar *container_id)
{
return g_str_has_prefix (container_id, YOUTUBE_CATEGORIES_ID "/");
}
static gboolean
is_feeds_container (const gchar *container_id)
{
return g_str_has_prefix (container_id, YOUTUBE_FEEDS_ID "/");
}
static YoutubeMediaType
classify_media_id (const gchar *media_id)
{
if (!media_id) {
return YOUTUBE_MEDIA_TYPE_ROOT;
} else if (!strcmp (media_id, YOUTUBE_FEEDS_ID)) {
return YOUTUBE_MEDIA_TYPE_FEEDS;
} else if (!strcmp (media_id, YOUTUBE_CATEGORIES_ID)) {
return YOUTUBE_MEDIA_TYPE_CATEGORIES;
} else if (is_category_container (media_id)) {
return YOUTUBE_MEDIA_TYPE_CATEGORY;
} else if (is_feeds_container (media_id)) {
return YOUTUBE_MEDIA_TYPE_FEED;
} else {
return YOUTUBE_MEDIA_TYPE_VIDEO;
}
}
static void
set_category_childcount (GDataService *service,
GrlMediaBox *content,
CategoryInfo *dir,
guint index)
{
gint childcount;