static gboolean
mail_printer_print_timeout_cb (gpointer user_data)
{
GSimpleAsyncResult *simple;
AsyncContext *async_context;
GCancellable *cancellable;
GtkPrintOperation *print_operation;
GtkPrintOperationAction print_action;
EMailPrinter *printer;
WebKitWebFrame *web_frame;
gulong create_custom_widget_handler_id;
gulong custom_widget_apply_handler_id;
gulong draw_page_handler_id;
GError *error = NULL;
simple = G_SIMPLE_ASYNC_RESULT (user_data);
async_context = g_simple_async_result_get_op_res_gpointer (simple);
cancellable = async_context->cancellable;
print_action = async_context->print_action;
/* Check for cancellation one last time before printing. */
if (g_cancellable_set_error_if_cancelled (cancellable, &error))
goto exit;
/* This returns a new reference. */
printer = (EMailPrinter *) g_async_result_get_source_object (
G_ASYNC_RESULT (simple));
print_operation = e_print_operation_new ();
gtk_print_operation_set_show_progress (print_operation, TRUE);
gtk_print_operation_set_unit (print_operation, GTK_UNIT_PIXEL);
if (async_context->print_action == GTK_PRINT_OPERATION_ACTION_EXPORT) {
const gchar *export_filename;
export_filename =
e_mail_printer_get_export_filename (printer);
gtk_print_operation_set_export_filename (
print_operation, export_filename);
}
create_custom_widget_handler_id = g_signal_connect (
print_operation, "create-custom-widget",
G_CALLBACK (mail_printer_create_custom_widget_cb),
async_context);
custom_widget_apply_handler_id = g_signal_connect (
print_operation, "custom-widget-apply",
G_CALLBACK (mail_printer_custom_widget_apply_cb),
async_context);
draw_page_handler_id = g_signal_connect (
print_operation, "draw-page",
G_CALLBACK (mail_printer_draw_footer_cb),
async_context->cancellable);
web_frame = webkit_web_view_get_main_frame (async_context->web_view);
async_context->print_result = webkit_web_frame_print_full (
web_frame, print_operation, print_action, &error);
/* Sanity check. */
switch (async_context->print_result) {
case GTK_PRINT_OPERATION_RESULT_ERROR:
if (error == NULL)
g_warning (
"WebKit print operation returned "
"ERROR result without setting a "
"GError");
break;
case GTK_PRINT_OPERATION_RESULT_APPLY:
if (error != NULL)
g_warning (
"WebKit print operation returned "
"APPLY result but also set a GError");
break;
case GTK_PRINT_OPERATION_RESULT_CANCEL:
if (error != NULL)
g_warning (
"WebKit print operation returned "
"CANCEL result but also set a GError");
break;
default:
g_warn_if_reached ();
}
g_signal_handler_disconnect (
print_operation, create_custom_widget_handler_id);
g_signal_handler_disconnect (
print_operation, custom_widget_apply_handler_id);
g_signal_handler_disconnect (
print_operation, draw_page_handler_id);
g_object_unref (print_operation);
g_object_unref (printer);
exit:
if (error != NULL)
g_simple_async_result_take_error (simple, error);
g_simple_async_result_complete_in_idle (simple);
return FALSE;
}
static gboolean
mail_printer_print_timeout_cb (GTask *task)
{
AsyncContext *async_context;
gpointer source_object;
const gchar *export_filename;
GtkPrintSettings *print_settings = NULL;
WebKitPrintOperation *print_operation = NULL;
WebKitPrintOperationResponse response;
/* FIXME WK2
gulong draw_page_handler_id;
gulong create_custom_widget_handler_id;
gulong custom_widget_apply_handler_id;*/
async_context = g_task_get_task_data (task);
g_return_val_if_fail (async_context != NULL, G_SOURCE_REMOVE);
source_object = g_task_get_source_object (task);
g_return_val_if_fail (E_IS_MAIL_PRINTER (source_object), G_SOURCE_REMOVE);
print_settings = gtk_print_settings_new ();
export_filename = e_mail_printer_get_export_filename (E_MAIL_PRINTER (source_object));
gtk_print_settings_set (
print_settings,
GTK_PRINT_SETTINGS_OUTPUT_BASENAME,
export_filename);
print_operation = webkit_print_operation_new (async_context->web_view);
webkit_print_operation_set_print_settings (print_operation, print_settings);
g_signal_connect_data (
print_operation, "failed",
G_CALLBACK (mail_printer_print_failed_cb),
g_object_ref (task),
(GClosureNotify) g_object_unref, 0);
g_signal_connect_data (
print_operation, "finished",
G_CALLBACK (mail_printer_print_finished_cb),
g_object_ref (task),
(GClosureNotify) g_object_unref, 0);
/* FIXME WK2
create_custom_widget_handler_id = g_signal_connect (
print_operation, "create-custom-widget",
G_CALLBACK (mail_printer_create_custom_widget_cb),
async_context);
custom_widget_apply_handler_id = g_signal_connect (
print_operation, "custom-widget-apply",
G_CALLBACK (mail_printer_custom_widget_apply_cb),
async_context); */
/* FIXME WK2 - this will be hard to add back to WK2 API.. There is a CSS draft
* that can be used to add a page numbers, but it is not in WebKit yet.
* http://www.w3.org/TR/css3-page/
draw_page_handler_id = g_signal_connect (
print_operation, "draw-page",
G_CALLBACK (mail_printer_draw_footer_cb),
async_context->cancellable); */
response = webkit_print_operation_run_dialog (print_operation, NULL);
/* FIXME WK2
g_signal_handler_disconnect (
print_operation, create_custom_widget_handler_id);
g_signal_handler_disconnect (
print_operation, custom_widget_apply_handler_id);
g_signal_handler_disconnect (
print_operation, draw_page_handler_id); */
g_clear_object (&print_operation);
g_clear_object (&print_settings);
if (response == WEBKIT_PRINT_OPERATION_RESPONSE_CANCEL) {
async_context->print_result = GTK_PRINT_OPERATION_RESULT_CANCEL;
g_task_return_boolean (task, TRUE);
}
return G_SOURCE_REMOVE;
}
