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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/printing/print_job_manager.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/printing/print_job.h"
#include "chrome/browser/printing/printer_query.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/notification_service.h"
#include "printing/printed_document.h"
#include "printing/printed_page.h"
namespace printing {
PrintQueriesQueue::PrintQueriesQueue() {
}
PrintQueriesQueue::~PrintQueriesQueue() {
base::AutoLock lock(lock_);
queued_queries_.clear();
}
void PrintQueriesQueue::SetDestination(PrintDestinationInterface* destination) {
base::AutoLock lock(lock_);
destination_ = destination;
}
void PrintQueriesQueue::QueuePrinterQuery(PrinterQuery* job) {
base::AutoLock lock(lock_);
DCHECK(job);
queued_queries_.push_back(make_scoped_refptr(job));
DCHECK(job->is_valid());
}
scoped_refptr<PrinterQuery> PrintQueriesQueue::PopPrinterQuery(
int document_cookie) {
base::AutoLock lock(lock_);
for (PrinterQueries::iterator itr = queued_queries_.begin();
itr != queued_queries_.end(); ++itr) {
if ((*itr)->cookie() == document_cookie && !(*itr)->is_callback_pending()) {
scoped_refptr<printing::PrinterQuery> current_query(*itr);
queued_queries_.erase(itr);
DCHECK(current_query->is_valid());
return current_query;
}
}
return NULL;
}
scoped_refptr<PrinterQuery> PrintQueriesQueue::CreatePrinterQuery() {
scoped_refptr<PrinterQuery> job = new printing::PrinterQuery;
base::AutoLock lock(lock_);
job->SetWorkerDestination(destination_);
return job;
}
void PrintQueriesQueue::Shutdown() {
PrinterQueries queries_to_stop;
{
base::AutoLock lock(lock_);
queued_queries_.swap(queries_to_stop);
destination_ = NULL;
}
// Stop all pending queries, requests to generate print preview do not have
// corresponding PrintJob, so any pending preview requests are not covered
// by PrintJobManager::StopJobs and should be stopped explicitly.
for (PrinterQueries::iterator itr = queries_to_stop.begin();
itr != queries_to_stop.end(); ++itr) {
(*itr)->message_loop()->PostTask(
FROM_HERE, base::Bind(&PrinterQuery::StopWorker, *itr));
}
}
PrintJobManager::PrintJobManager() : is_shutdown_(false) {
registrar_.Add(this, chrome::NOTIFICATION_PRINT_JOB_EVENT,
content::NotificationService::AllSources());
}
PrintJobManager::~PrintJobManager() {
}
scoped_refptr<PrintQueriesQueue> PrintJobManager::queue() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
if (!queue_)
queue_ = new PrintQueriesQueue();
return queue_;
}
void PrintJobManager::Shutdown() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
DCHECK(!is_shutdown_);
is_shutdown_ = true;
registrar_.RemoveAll();
StopJobs(true);
if (queue_)
queue_->Shutdown();
queue_ = NULL;
}
void PrintJobManager::StopJobs(bool wait_for_finish) {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
// Copy the array since it can be modified in transit.
PrintJobs to_stop;
to_stop.swap(current_jobs_);
for (PrintJobs::const_iterator job = to_stop.begin(); job != to_stop.end();
++job) {
// Wait for two minutes for the print job to be spooled.
if (wait_for_finish)
(*job)->FlushJob(base::TimeDelta::FromMinutes(2));
(*job)->Stop();
}
}
void PrintJobManager::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
switch (type) {
case chrome::NOTIFICATION_PRINT_JOB_EVENT: {
OnPrintJobEvent(content::Source<PrintJob>(source).ptr(),
*content::Details<JobEventDetails>(details).ptr());
break;
}
default: {
NOTREACHED();
break;
}
}
}
void PrintJobManager::OnPrintJobEvent(
PrintJob* print_job,
const JobEventDetails& event_details) {
switch (event_details.type()) {
case JobEventDetails::NEW_DOC: {
DCHECK(current_jobs_.end() == current_jobs_.find(print_job));
// Causes a AddRef().
current_jobs_.insert(print_job);
break;
}
case JobEventDetails::JOB_DONE: {
DCHECK(current_jobs_.end() != current_jobs_.find(print_job));
current_jobs_.erase(print_job);
break;
}
case JobEventDetails::FAILED: {
current_jobs_.erase(print_job);
break;
}
case JobEventDetails::USER_INIT_DONE:
case JobEventDetails::USER_INIT_CANCELED:
case JobEventDetails::DEFAULT_INIT_DONE:
case JobEventDetails::NEW_PAGE:
case JobEventDetails::PAGE_DONE:
case JobEventDetails::DOC_DONE:
case JobEventDetails::ALL_PAGES_REQUESTED: {
// Don't care.
break;
}
default: {
NOTREACHED();
break;
}
}
}
} // namespace printing
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