/** * a_babel_convert_from_url_or_shell: * @vt: The #VikTrwLayer where to insert the collected data * @url: the URL to fetch * @cb: Optional callback function. Same usage as in a_babel_convert(). * @user_data: passed along to cb * @options: download options. Maybe NULL. * * Download the file pointed by the URL and optionally uses GPSBabel to convert from input_file_type. * If input_file_type is %NULL, doesn't use GPSBabel. Input must be GPX. * * Returns: %TRUE on successful invocation of GPSBabel or read of the GPX * */ gboolean a_babel_convert_from_url_or_shell ( VikTrwLayer *vt, const char *input, const char *input_type, BabelStatusFunc cb, gpointer user_data, DownloadMapOptions *options ) { /* Check nature of input */ gboolean isUrl = FALSE; int i = 0; for (i = 0 ; PROTOS[i] != NULL ; i++) { const gchar *proto = PROTOS[i]; if (strncmp (input, proto, strlen(proto)) == 0) { /* Procotol matches: save result */ isUrl = TRUE; } } /* Do the job */ if (isUrl) return a_babel_convert_from_url (vt, input, input_type, cb, user_data, options); else return a_babel_convert_from_shellcommand (vt, input, input_type, cb, user_data, options); }
static gboolean datasource_osm_my_traces_process ( VikTrwLayer *vtl, const gchar *cmd, const gchar *extra, BabelStatusFunc status_cb, acq_dialog_widgets_t *adw, DownloadMapOptions *options_unused ) { //datasource_osm_my_traces_t *data = (datasource_osm_my_traces_t *)adw->user_data; gboolean result; gchar *user_pass = osm_get_login(); DownloadMapOptions options = { FALSE, FALSE, NULL, 2, NULL, user_pass }; // Allow a couple of redirects xml_data *xd = g_malloc ( sizeof (xml_data) ); //xd->xpath = g_string_new ( "" ); xd->c_cdata = g_string_new ( "" ); xd->current_tag = tt_unknown; xd->current_gpx_meta_data = new_gpx_meta_data_t(); xd->list_of_gpx_meta_data = NULL; gchar *tmpname = a_download_uri_to_tmp_file ( DS_OSM_TRACES_GPX_FILES, &options ); result = read_gpx_files_metadata_xml ( tmpname, xd ); // Test already downloaded metadata file: eg: //result = read_gpx_files_metadata_xml ( "/tmp/viking-download.GI47PW", xd ); if ( tmpname ) { g_remove ( tmpname ); g_free ( tmpname ); } if ( ! result ) return FALSE; if ( g_list_length ( xd->list_of_gpx_meta_data ) == 0 ) { if (!vik_datasource_osm_my_traces_interface.is_thread) none_found ( GTK_WINDOW(adw->vw) ); return FALSE; } xd->list_of_gpx_meta_data = g_list_reverse ( xd->list_of_gpx_meta_data ); set_in_current_view_property ( vtl, adw->user_data, xd->list_of_gpx_meta_data ); if (vik_datasource_osm_my_traces_interface.is_thread) gdk_threads_enter(); GList *selected = select_from_list ( GTK_WINDOW(adw->vw), xd->list_of_gpx_meta_data, "Select GPS Traces", "Select the GPS traces you want to add." ); if (vik_datasource_osm_my_traces_interface.is_thread) gdk_threads_leave(); // If passed in on an existing layer - we will create everything into that. // thus with many differing gpx's - this will combine all waypoints into this single layer! // Hence the preference is to create multiple layers // and so this creation of the layers must be managed here gboolean create_new_layer = ( !vtl ); // Only update the screen on the last layer acquired VikTrwLayer *vtl_last = vtl; gboolean got_something = FALSE; GList *selected_iterator = selected; while ( selected_iterator ) { VikTrwLayer *vtlX = vtl; if ( create_new_layer ) { // Have data but no layer - so create one vtlX = VIK_TRW_LAYER ( vik_layer_create ( VIK_LAYER_TRW, vik_window_viewport(adw->vw), NULL, FALSE ) ); if ( ((gpx_meta_data_t*)selected_iterator->data)->name ) vik_layer_rename ( VIK_LAYER ( vtlX ), ((gpx_meta_data_t*)selected_iterator->data)->name ); else vik_layer_rename ( VIK_LAYER ( vtlX ), _("My OSM Traces") ); vik_aggregate_layer_add_layer ( vik_layers_panel_get_top_layer (adw->vlp), VIK_LAYER(vtlX) ); } result = FALSE; gint gpx_id = ((gpx_meta_data_t*)selected_iterator->data)->id; if ( gpx_id ) { gchar *url = g_strdup_printf ( DS_OSM_TRACES_GPX_URL_FMT, gpx_id ); result = a_babel_convert_from_url ( vtlX, url, "gpx", status_cb, adw, &options ); // TODO investigate using a progress bar: // http://developer.gnome.org/gtk/2.24/GtkProgressBar.html got_something = got_something || result; // TODO feedback to UI to inform which traces failed if ( !result ) g_warning ( _("Unable to get trace: %s"), url ); } if ( result ) { // Move to area of the track vik_trw_layer_auto_set_view ( vtlX, vik_window_viewport(adw->vw) ); vik_layer_post_read ( VIK_LAYER(vtlX), vik_window_viewport(adw->vw), TRUE ); vtl_last = vtlX; } else if ( create_new_layer ) { // Layer not needed as no data has been acquired g_object_unref ( vtlX ); } selected_iterator = g_list_next ( selected_iterator ); } // Free memory if ( xd->current_gpx_meta_data ) free_gpx_meta_data ( xd->current_gpx_meta_data, NULL ); g_free ( xd->current_gpx_meta_data ); free_gpx_meta_data_list ( xd->list_of_gpx_meta_data ); free_gpx_meta_data_list ( selected ); g_free ( xd ); g_free ( user_pass ); // Would prefer to keep the update in acquire.c, // however since we may create the layer - need to do the update here if ( got_something ) vik_layer_emit_update ( VIK_LAYER(vtl_last) ); // ATM The user is only informed if all getting *all* of the traces failed if ( selected ) result = got_something; else // Process was cancelled but need to return that it proceeded as expected result = TRUE; return result; }
/* this routine is the worker thread. there is only one simultaneous download allowed */ static void get_from_anything ( w_and_interface_t *wi ) { gchar *cmd = wi->cmd; gchar *extra = wi->extra; gboolean result = TRUE; VikTrwLayer *vtl = NULL; gboolean creating_new_layer = TRUE; acq_dialog_widgets_t *w = wi->w; VikDataSourceInterface *source_interface = wi->w->source_interface; g_free ( wi ); wi = NULL; gdk_threads_enter(); if (source_interface->mode == VIK_DATASOURCE_ADDTOLAYER) { VikLayer *current_selected = vik_layers_panel_get_selected ( w->vlp ); if ( IS_VIK_TRW_LAYER(current_selected) ) { vtl = VIK_TRW_LAYER(current_selected); creating_new_layer = FALSE; } } if ( creating_new_layer ) { vtl = VIK_TRW_LAYER ( vik_layer_create ( VIK_LAYER_TRW, w->vvp, NULL, FALSE ) ); vik_layer_rename ( VIK_LAYER ( vtl ), _(source_interface->layer_title) ); gtk_label_set_text ( GTK_LABEL(w->status), _("Working...") ); } gdk_threads_leave(); switch ( source_interface->type ) { case VIK_DATASOURCE_GPSBABEL_DIRECT: result = a_babel_convert_from (vtl, cmd, (BabelStatusFunc) progress_func, extra, w); break; case VIK_DATASOURCE_URL: result = a_babel_convert_from_url (vtl, cmd, extra, (BabelStatusFunc) progress_func, w); break; case VIK_DATASOURCE_SHELL_CMD: result = a_babel_convert_from_shellcommand ( vtl, cmd, extra, (BabelStatusFunc) progress_func, w); break; default: g_critical("Houston, we've had a problem."); } g_free ( cmd ); g_free ( extra ); if (!result) { gdk_threads_enter(); gtk_label_set_text ( GTK_LABEL(w->status), _("Error: acquisition failed.") ); if ( creating_new_layer ) g_object_unref ( G_OBJECT ( vtl ) ); gdk_threads_leave(); } else { gdk_threads_enter(); if (w->ok) { gtk_label_set_text ( GTK_LABEL(w->status), _("Done.") ); if ( creating_new_layer ) { /* Only create the layer if it actually contains anything useful */ if ( g_hash_table_size (vik_trw_layer_get_tracks(vtl)) || g_hash_table_size (vik_trw_layer_get_waypoints(vtl)) ) vik_aggregate_layer_add_layer( vik_layers_panel_get_top_layer(w->vlp), VIK_LAYER(vtl)); else gtk_label_set_text ( GTK_LABEL(w->status), _("No data.") ); } /* View this data if available and is desired */ if ( vtl && source_interface->autoview ) { vik_trw_layer_auto_set_view ( vtl, vik_layers_panel_get_viewport(w->vlp) ); vik_layers_panel_emit_update (w->vlp); } if ( source_interface->keep_dialog_open ) { gtk_dialog_set_response_sensitive ( GTK_DIALOG(w->dialog), GTK_RESPONSE_ACCEPT, TRUE ); gtk_dialog_set_response_sensitive ( GTK_DIALOG(w->dialog), GTK_RESPONSE_REJECT, FALSE ); } else { gtk_dialog_response ( GTK_DIALOG(w->dialog), GTK_RESPONSE_ACCEPT ); } } else { /* canceled */ if ( creating_new_layer ) g_object_unref(vtl); } } if ( source_interface->cleanup_func ) source_interface->cleanup_func ( w->user_data ); if ( w->ok ) { w->ok = FALSE; } else { g_free ( w ); } gdk_threads_leave(); g_thread_exit ( NULL ); }