// ---------------------------------------------------------------
// PrintSpooledJob
//
// Loads the printer add-on and calls its take_job function with
// the spool file as argument.
//
// Parameters:
// spoolFile - the spool file.
//
// Returns:
// B_OK if successful.
// ---------------------------------------------------------------
status_t Printer::PrintSpooledJob(BFile* spoolFile)
{
status_t rc;
image_id id;
if ((rc = LoadPrinterAddon(id)) == B_OK) {
take_job_func_t func;
// Addon was loaded, so try and get the take_job symbol
if ((rc = get_image_symbol(id, "take_job", B_SYMBOL_TYPE_TEXT,
(void**)&func)) == B_OK) {
// This seems to be required for legacy?
// HP PCL3 add-on crashes without it!
BMessage params(B_REFS_RECEIVED);
params.AddInt32("file", (int32)spoolFile);
params.AddInt32("printer", (int32)SpoolDir());
// call the function and check its result
BMessage* result = (*func)(spoolFile, SpoolDir(), ¶ms);
if (result == NULL || result->what != 'okok')
rc = B_ERROR;
delete result;
}
::unload_add_on(id);
}
return rc;
}
// ---------------------------------------------------------------
// LoadPrinterAddon
//
// Try to load the printer addon into memory.
//
// Parameters:
// id - image_id set to the image id of the loaded addon.
//
// Returns:
// B_OK if successful or errorcode otherwise.
// ---------------------------------------------------------------
status_t Printer::LoadPrinterAddon(image_id& id)
{
status_t rc;
BString drName;
if ((rc = SpoolDir()->ReadAttrString(PSRV_PRINTER_ATTR_DRV_NAME, &drName)) == B_OK) {
// try to locate the driver
BPath path;
if ((rc= ::TestForAddonExistence(drName.String(), B_USER_ADDONS_DIRECTORY,
"Print", path)) != B_OK) {
if ((rc = ::TestForAddonExistence(drName.String(), B_COMMON_ADDONS_DIRECTORY,
"Print", path)) != B_OK) {
rc = ::TestForAddonExistence(drName.String(), B_BEOS_ADDONS_DIRECTORY,
"Print", path);
}
}
// If the driver was found
if (rc == B_OK) {
// If we cannot load the addon
if ((id=::load_add_on(path.Path())) < 0)
rc = id;
}
}
return rc;
}
// ---------------------------------------------------------------
// GetDefaultSettings
//
// Retrieve the default configuration message from printer add-on
//
// Parameters:
// settings, output paramter.
//
// Returns:
// B_OK if successful or errorcode otherwise.
// ---------------------------------------------------------------
status_t Printer::GetDefaultSettings(BMessage& settings)
{
status_t rc;
image_id id;
if ((rc = LoadPrinterAddon(id)) == B_OK) {
// Addon was loaded, so try and get the default_settings symbol
default_settings_t func;
if ((rc = get_image_symbol(id, "default_settings", B_SYMBOL_TYPE_TEXT,
(void**)&func)) == B_OK) {
// call the function and check its result
BMessage* new_settings = (*func)(SpoolDir());
if (new_settings) {
settings = *new_settings;
settings.what = 'okok';
AddCurrentPrinter(settings);
} else {
rc = B_ERROR;
}
delete new_settings;
}
::unload_add_on(id);
}
return rc;
}
// ---------------------------------------------------------------
// ConfigureJob
//
// Handles calling the printer addon's config_job function.
//
// Parameters:
// settings - Job settings to display. The contents of this
// message will be replaced with the new settings
// if the function returns success.
//
// Returns:
// B_OK if successful or errorcode otherwise.
// ---------------------------------------------------------------
status_t Printer::ConfigureJob(BMessage& settings)
{
status_t rc;
image_id id;
if ((rc = LoadPrinterAddon(id)) == B_OK) {
// Addon was loaded, so try and get the config_job symbol
config_func_t func;
if ((rc = get_image_symbol(id, "config_job", B_SYMBOL_TYPE_TEXT,
(void**)&func)) == B_OK) {
// call the function and check its result
BMessage* new_settings = (*func)(SpoolDir(), &settings);
if ((new_settings != NULL) && (new_settings->what != 'baad')) {
settings = *new_settings;
settings.what = 'okok';
AddCurrentPrinter(settings);
} else {
rc = B_ERROR;
}
delete new_settings;
}
::unload_add_on(id);
}
return rc;
}
void Printer::HandleScriptingCommand(BMessage* msg)
{
status_t rc = B_ERROR;
BString propName;
BString result;
BMessage spec;
int32 idx;
if ((rc=msg->GetCurrentSpecifier(&idx,&spec)) == B_OK &&
(rc=spec.FindString("property",&propName)) == B_OK) {
switch(msg->what) {
case B_GET_PROPERTY:
if (propName == "Name")
rc = SpoolDir()->ReadAttrString(PSRV_PRINTER_ATTR_PRT_NAME, &result);
else if (propName == "TransportAddon")
rc = SpoolDir()->ReadAttrString(PSRV_PRINTER_ATTR_TRANSPORT, &result);
else if (propName == "TransportConfig")
rc = SpoolDir()->ReadAttrString(PSRV_PRINTER_ATTR_TRANSPORT_ADDR, &result);
else if (propName == "PrinterAddon")
rc = SpoolDir()->ReadAttrString(PSRV_PRINTER_ATTR_DRV_NAME, &result);
else if (propName == "Comments")
rc = SpoolDir()->ReadAttrString(PSRV_PRINTER_ATTR_COMMENTS, &result);
else { // If unknown scripting request, let superclas handle it
Inherited::MessageReceived(msg);
break;
}
BMessage reply(B_REPLY);
reply.AddString("result", result);
reply.AddInt32("error", rc);
msg->SendReply(&reply);
break;
}
}
else {
// If GetSpecifier failed
if (idx == -1) {
BMessage reply(B_REPLY);
reply.AddMessenger("result", BMessenger(this));
reply.AddInt32("error", B_OK);
msg->SendReply(&reply);
}
}
}
// ---------------------------------------------------------------
// PrintSpooledJob
//
// Loads the printer add-on and calls its take_job function with
// the spool file as argument.
//
// Parameters:
// spoolFile - the path to the spool file.
//
// Returns:
// B_OK if successful.
// ---------------------------------------------------------------
status_t
Printer::PrintSpooledJob(const char* spoolFile)
{
BString driver;
status_t result = GetDriverName(&driver);
if (result != B_OK)
return result;
PrintAddOnServer addOn(driver.String());
return addOn.TakeJob(spoolFile, SpoolDir());
}
// ---------------------------------------------------------------
// GetDefaultSettings
//
// Retrieve the default configuration message from printer add-on
//
// Parameters:
// settings, output paramter.
//
// Returns:
// B_OK if successful or errorcode otherwise.
// ---------------------------------------------------------------
status_t
Printer::GetDefaultSettings(BMessage& settings)
{
BString driver;
status_t result = GetDriverName(&driver);
if (result != B_OK)
return result;
PrintAddOnServer addOn(driver.String());
result = addOn.DefaultSettings(SpoolDir(), &settings);
if (result == B_OK)
AddCurrentPrinter(settings);
return result;
}
// ---------------------------------------------------------------
// ConfigurePage
//
// Handles calling the printer addon's config_page function.
//
// Parameters:
// settings - Page settings to display. The contents of this
// message will be replaced with the new settings
// if the function returns success.
//
// Returns:
// B_OK if successful or errorcode otherwise.
// ---------------------------------------------------------------
status_t
Printer::ConfigurePage(BMessage& settings)
{
BString driver;
status_t result = GetDriverName(&driver);
if (result != B_OK)
return result;
PrintAddOnServer addOn(driver.String());
result = addOn.ConfigPage(SpoolDir(), &settings);
if (result == B_OK) {
AddCurrentPrinter(settings);
}
return result;
}
// ---------------------------------------------------------------
// Printer [constructor]
//
// Initializes the printer object with data read from the
// attributes attached to the printer definition node.
//
// Parameters:
// node - Printer definition node for this printer.
//
// Returns:
// none.
// ---------------------------------------------------------------
Printer::Printer(const BDirectory* node, Resource* res)
: Inherited(B_EMPTY_STRING),
fPrinter(gLock, be_app, *node),
fResource(res),
fSinglePrintThread(res->NeedsLocking()),
fJob(NULL),
fProcessing(0),
fAbort(false)
{
BString name;
// Set our name to the name of the passed node
if (SpoolDir()->ReadAttrString(PSRV_PRINTER_ATTR_PRT_NAME, &name) == B_OK)
SetName(name.String());
// Add us to the global list of known printer definitions
sPrinters.AddItem(this);
ResetJobStatus();
}
// ---------------------------------------------------------------
// GetName
//
// Get the name from spool directory.
//
// Parameters:
// name - the name of the printer.
// ---------------------------------------------------------------
void
Printer::GetName(BString& name)
{
if (SpoolDir()->ReadAttrString(PSRV_PRINTER_ATTR_PRT_NAME, &name) != B_OK)
name = "Unknown Printer";
}
status_t
Printer::GetDriverName(BString* name)
{
return SpoolDir()->ReadAttrString(PSRV_PRINTER_ATTR_DRV_NAME, name);
}