Wire up printing on the Mac

chrome/browser/printing/print_job_worker.h

 // Copyright (c) 2006-2008 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__
 
+#include "app/gfx/native_widget_types.h"
 #include "base/task.h"
 #include "base/thread.h"
 #include "printing/page_number.h"
 #include "printing/printing_context.h"
 
 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);
   ~PrintJobWorker();
 
   void SetNewOwner(PrintJobWorkerOwner* new_owner);
 
   // 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,
-                   HWND parent_window,
+                   gfx::NativeWindow parent_window,
                    int document_page_count,
                    bool has_selection);
 
   // Starts the printing loop. Every pages are printed as soon as the data is
   // available. Makes sure the new_document is the right one.
   void StartPrinting(PrintedDocument* new_document);
 
   // Updates the printed document.
   void OnDocumentChanged(PrintedDocument* new_document);
 
@@ skipping 24 matching lines @@
   // Renders a page in the printer.
   void SpoolPage(PrintedPage& page);
 
   // Closes the job since spooling is done.
   void OnDocumentDone();
 
   // Discards the current document, the current page and cancels the printing
   // context.
   void OnFailure();
 
+#if defined(OS_MACOSX)
+  // Asks the user for print settings. Must be called on the UI thread.

[pink (ping after 24hrs), 2009/10/13 21:04:51]

Perhaps add that this has to be added because it needs to be called on the main
UI thread, while on windows it can be called on a different thread. Your
existing comment implies that, but it took me some time to understand why win
didn't need this.

[stuartmorgan, 2009/10/13 22:07:43]

Done.

+  void GetSettingsWithUI(gfx::NativeWindow parent_window,
+                         int document_page_count,
+                         bool has_selection);
+#endif
+
+  // Reports settings back to owner_.
+  void GetSettingsDone(PrintingContext::Result result);
+
   // Information about the printer setting.
   PrintingContext printing_context_;
 
   // The printed document. Only has read-only access.
   scoped_refptr<PrintedDocument> document_;
 
   // The print job owning this worker thread. It is guaranteed to outlive this
   // object.
   PrintJobWorkerOwner* owner_;
 
   // Current page number to print.
   PageNumber page_number_;
 
   DISALLOW_EVIL_CONSTRUCTORS(PrintJobWorker);
 };
 
 }  // namespace printing
 
 template <>
 struct RunnableMethodTraits<printing::PrintJobWorker> {
   void RetainCallee(printing::PrintJobWorker* obj);
   void ReleaseCallee(printing::PrintJobWorker* obj);
  private:
   scoped_refptr<printing::PrintJobWorkerOwner> owner_;
 };
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H__