Print support for Windows Metro...

chrome/browser/printing/print_job_worker.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H__
 #define CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H__
 #pragma once
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread.h"
 #include "printing/page_number.h"
+#include "printing/print_destination_interface.h"
 #include "printing/printing_context.h"
 #include "printing/print_job_constants.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace printing {
 
 class PrintedDocument;
 class PrintedPage;
 class PrintJob;
 class PrintJobWorkerOwner;
 
 // Worker thread code. All this code, except for the constructor, is executed in
 // the worker thread. It manages the PrintingContext, which can be blocking
 // and/or run a message loop. This is the object that generates most
 // NOTIFY_PRINT_JOB_EVENT notifications, but they are generated through a
 // NotificationTask task to be executed from the right thread, the UI thread.
 // PrintJob always outlives its worker instance.
 class PrintJobWorker : public base::Thread {
  public:
   explicit PrintJobWorker(PrintJobWorkerOwner* owner);
   virtual ~PrintJobWorker();
 
   void SetNewOwner(PrintJobWorkerOwner* new_owner);
 
+  // Set a destination for print.
+  // This supercedes the document's rendering destination.
+  void SetPrintDestination(PrintDestinationInterface* destination);
+
   // Initializes the print settings. If |ask_user_for_settings| is true, a
   // Print... dialog box will be shown to ask the user his preference.
   void GetSettings(bool ask_user_for_settings,
                    gfx::NativeView parent_view,
                    int document_page_count,
                    bool has_selection,
                    MarginType margin_type);
 
   // Set the new print settings. This function takes ownership of
   // |new_settings|.
@@ skipping 59 matching lines @@
   // displaying a dialog. So this needs to happen from the UI thread on these
   // systems.
   void UseDefaultSettings();
 
   // Information about the printer setting.
   scoped_ptr<PrintingContext> printing_context_;
 
   // The printed document. Only has read-only access.
   scoped_refptr<PrintedDocument> document_;
 
+  // The print destination, may be NULL.
+  scoped_refptr<PrintDestinationInterface> destination_;
+
   // The print job owning this worker thread. It is guaranteed to outlive this
   // object.
   PrintJobWorkerOwner* owner_;
 
   // Current page number to print.
   PageNumber page_number_;
 
   // Used to generate a WeakPtr for callbacks.
   base::WeakPtrFactory<PrintJobWorker> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintJobWorker);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H__