Printing on Windows via PDF

chrome/browser/printing/print_view_manager_base.h

 // Copyright 2013 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_VIEW_MANAGER_BASE_H_
 #define CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_BASE_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/prefs/pref_member.h"
 #include "base/strings/string16.h"
+#include "chrome/service/service_utility_process_host.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
+#include "printing/metafile_impl.h"
 #include "printing/printed_pages_source.h"
 
 struct PrintHostMsg_DidPrintPage_Params;
 
 namespace content {
 class RenderViewHost;
 }
 
 namespace printing {
 
 class JobEventDetails;
 class PrintJob;
 class PrintJobWorkerOwner;
 class PrintQueriesQueue;
 
 // Base class for managing the print commands for a WebContents.
 class PrintViewManagerBase : public content::NotificationObserver,
                              public PrintedPagesSource,
-                             public content::WebContentsObserver {
+                             public content::WebContentsObserver
+#if 0 && defined(OS_WIN) && !PRINTING_USE_EMF_METAFILE
+                             , public ServiceUtilityProcessHost::Client
+#endif
+                             {
  public:
   virtual ~PrintViewManagerBase();
 
   // Prints the current document immediately. Since the rendering is
   // asynchronous, the actual printing will not be completed on the return of
   // this function. Returns false if printing is impossible at the moment.
   virtual bool PrintNow();
 
   // Whether to block scripted printing for our tab or not.
   void UpdateScriptedPrintingBlocked();
 
   // PrintedPagesSource implementation.
   virtual base::string16 RenderSourceName() OVERRIDE;
 
+#if 0 && defined(OS_WIN) && !PRINTING_USE_EMF_METAFILE
+  // ServiceUtilityProcessHost::Client implementation:
+  virtual void OnRenderPDFPagesToMetafileSucceeded(
+      const printing::Emf& metafile,
+      int highest_rendered_page_number,
+      double scale_factor) OVERRIDE;
+#endif
+
  protected:
   explicit PrintViewManagerBase(content::WebContents* web_contents);
 
   // Helper method for Print*Now().
   bool PrintNowInternal(IPC::Message* message);
 
   // Terminates or cancels the print job if one was pending.
   virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE;
 
   // content::WebContentsObserver implementation.
@@ skipping 65 matching lines @@
   bool RunInnerMessageLoop();
 
   // In the case of Scripted Printing, where the renderer is controlling the
   // control flow, print_job_ is initialized whenever possible. No-op is
   // print_job_ is initialized.
   bool OpportunisticallyCreatePrintJob(int cookie);
 
   // Release the PrinterQuery associated with our |cookie_|.
   void ReleasePrinterQuery();
 
+#if 0 && defined(OS_WIN) && !PRINTING_USE_EMF_METAFILE
+  // XXX
+  void ConvertPDFToEMF(scoped_ptr<NativeMetafile> metafile);
+#endif
+
   content::NotificationRegistrar registrar_;
 
   // Manages the low-level talk to the printer.
   scoped_refptr<PrintJob> print_job_;
 
   // Number of pages to print in the print job.
   int number_pages_;
 
   // Indication of success of the print job.
   bool printing_succeeded_;
 
   // Running an inner message loop inside RenderAllMissingPagesNow(). This means
   // we are _blocking_ until all the necessary pages have been rendered or the
   // print settings are being loaded.
   bool inside_inner_message_loop_;
 
-#if defined(OS_POSIX) && !defined(OS_MACOSX)
+#if (defined(OS_POSIX) && !defined(OS_MACOSX)) || \
+    (defined(OS_WIN) && !PRINTING_USE_EMF_METAFILE)
   // Set to true when OnDidPrintPage() should be expecting the first page.
   bool expecting_first_page_;
 #endif
 
   // The document cookie of the current PrinterQuery.
   int cookie_;
 
   // Whether printing is enabled.
   BooleanPrefMember printing_enabled_;
 
   scoped_refptr<printing::PrintQueriesQueue> queue_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintViewManagerBase);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_BASE_H_