forked from AuroraMiddleware/gtk
Speed up printer listing in the print dialog
Use shorter timeout for connection testing to avoid A 3-6 second delay before the printers appear. Bug 594643
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14f3006d12
commit
dd52987d1f
@ -112,6 +112,7 @@ struct _GtkPrintBackendCups
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guint list_printers_poll;
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guint list_printers_pending : 1;
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gint list_printers_attempts;
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guint got_default_printer : 1;
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guint default_printer_poll;
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GtkCupsConnectionTest *cups_connection_test;
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@ -586,6 +587,7 @@ gtk_print_backend_cups_init (GtkPrintBackendCups *backend_cups)
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backend_cups->list_printers_poll = FALSE;
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backend_cups->got_default_printer = FALSE;
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backend_cups->list_printers_pending = FALSE;
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backend_cups->list_printers_attempts = 0;
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backend_cups->requests = NULL;
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backend_cups->auth = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, overwrite_and_free);
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@ -641,6 +643,7 @@ gtk_print_backend_cups_dispose (GObject *object)
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if (backend_cups->list_printers_poll > 0)
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g_source_remove (backend_cups->list_printers_poll);
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backend_cups->list_printers_poll = 0;
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backend_cups->list_printers_attempts = 0;
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if (backend_cups->default_printer_poll > 0)
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g_source_remove (backend_cups->default_printer_poll);
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@ -1578,6 +1581,7 @@ cups_request_printer_list_cb (GtkPrintBackendCups *cups_backend,
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if (cups_backend->list_printers_poll > 0)
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g_source_remove (cups_backend->list_printers_poll);
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cups_backend->list_printers_poll = 0;
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cups_backend->list_printers_attempts = 0;
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}
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goto done;
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@ -2110,8 +2114,23 @@ cups_request_printer_list (GtkPrintBackendCups *cups_backend)
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state = gtk_cups_connection_test_get_state (cups_backend->cups_connection_test);
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update_backend_status (cups_backend, state);
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if (cups_backend->list_printers_attempts == 60)
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{
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cups_backend->list_printers_attempts = -1;
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if (cups_backend->list_printers_poll > 0)
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g_source_remove (cups_backend->list_printers_poll);
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cups_backend->list_printers_poll = gdk_threads_add_timeout (200,
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(GSourceFunc) cups_request_printer_list,
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cups_backend);
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}
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else if (cups_backend->list_printers_attempts != -1)
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cups_backend->list_printers_attempts++;
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if (state == GTK_CUPS_CONNECTION_IN_PROGRESS || state == GTK_CUPS_CONNECTION_NOT_AVAILABLE)
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return TRUE;
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else
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if (cups_backend->list_printers_attempts > 0)
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cups_backend->list_printers_attempts = 60;
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cups_backend->list_printers_pending = TRUE;
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@ -2149,7 +2168,7 @@ cups_get_printer_list (GtkPrintBackend *backend)
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if (cups_backend->list_printers_poll == 0)
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{
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if (cups_request_printer_list (cups_backend))
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cups_backend->list_printers_poll = gdk_threads_add_timeout_seconds (3,
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cups_backend->list_printers_poll = gdk_threads_add_timeout (50,
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(GSourceFunc) cups_request_printer_list,
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backend);
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}
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@ -2247,11 +2266,26 @@ cups_request_ppd (GtkPrinter *printer)
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state = gtk_cups_connection_test_get_state (cups_printer->remote_cups_connection_test);
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if (state == GTK_CUPS_CONNECTION_IN_PROGRESS)
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{
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if (cups_printer->get_remote_ppd_attempts == 60)
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{
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cups_printer->get_remote_ppd_attempts = -1;
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if (cups_printer->get_remote_ppd_poll > 0)
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g_source_remove (cups_printer->get_remote_ppd_poll);
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cups_printer->get_remote_ppd_poll = gdk_threads_add_timeout (200,
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(GSourceFunc) cups_request_ppd,
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printer);
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}
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else if (cups_printer->get_remote_ppd_attempts != -1)
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cups_printer->get_remote_ppd_attempts++;
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return TRUE;
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}
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gtk_cups_connection_test_free (cups_printer->remote_cups_connection_test);
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cups_printer->remote_cups_connection_test = NULL;
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cups_printer->get_remote_ppd_poll = 0;
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cups_printer->get_remote_ppd_attempts = 0;
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if (state == GTK_CUPS_CONNECTION_NOT_AVAILABLE)
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{
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@ -2501,7 +2535,7 @@ cups_get_default_printer (GtkPrintBackendCups *backend)
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if (cups_backend->default_printer_poll == 0)
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{
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if (cups_request_default_printer (cups_backend))
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cups_backend->default_printer_poll = gdk_threads_add_timeout (500,
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cups_backend->default_printer_poll = gdk_threads_add_timeout (200,
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(GSourceFunc) cups_request_default_printer,
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backend);
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}
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@ -2634,7 +2668,7 @@ cups_printer_request_details (GtkPrinter *printer)
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cups_printer->remote_cups_connection_test = gtk_cups_connection_test_new (cups_printer->hostname);
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if (cups_request_ppd (printer))
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cups_printer->get_remote_ppd_poll = gdk_threads_add_timeout (200,
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cups_printer->get_remote_ppd_poll = gdk_threads_add_timeout (50,
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(GSourceFunc) cups_request_ppd,
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printer);
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}
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@ -79,6 +79,7 @@ gtk_printer_cups_init (GtkPrinterCups *printer)
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printer->default_cover_after = NULL;
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printer->remote = FALSE;
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printer->get_remote_ppd_poll = 0;
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printer->get_remote_ppd_attempts = 0;
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printer->remote_cups_connection_test = NULL;
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printer->auth_info_required = NULL;
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}
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@ -105,6 +106,7 @@ gtk_printer_cups_finalize (GObject *object)
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if (printer->get_remote_ppd_poll > 0)
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g_source_remove (printer->get_remote_ppd_poll);
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printer->get_remote_ppd_attempts = 0;
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gtk_cups_connection_test_free (printer->remote_cups_connection_test);
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@ -60,6 +60,7 @@ struct _GtkPrinterCups
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gboolean remote;
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guint get_remote_ppd_poll;
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gint get_remote_ppd_attempts;
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GtkCupsConnectionTest *remote_cups_connection_test;
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};
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