Print Preview: Handling pending print to pdf requests.

chrome/browser/ui/webui/print_preview_handler.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_UI_WEBUI_PRINT_PREVIEW_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_HANDLER_H_
 #pragma once
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/printing/print_view_manager_observer.h"
 #include "chrome/browser/ui/shell_dialogs.h"
 #include "content/browser/webui/web_ui.h"
 
 class FilePath;
 class PrintSystemTaskProxy;
 class TabContentsWrapper;
 
 namespace base {
+class DictionaryValue;
 class FundamentalValue;
 class StringValue;
 }
 
 namespace printing {
 class PrintBackend;
 }
 
 // The handler for Javascript messages related to the print preview dialog.
 class PrintPreviewHandler : public WebUIMessageHandler,
@@ skipping 40 matching lines @@
   // Gets the default printer. |args| is unused.
   void HandleGetDefaultPrinter(const base::ListValue* args);
 
   // Gets the list of printers. |args| is unused.
   void HandleGetPrinters(const base::ListValue* args);
 
   // Asks the initiator renderer to generate a preview.  First element of |args|
   // is a job settings JSON string.
   void HandleGetPreview(const base::ListValue* args);
 
-  // Gets the job settings from Web UI and initiate printing.  First element of
+  // Gets the job settings from Web UI and initiate printing. First element of
   // |args| is a job settings JSON string.
   void HandlePrint(const base::ListValue* args);
 
+  // Handles printing to PDF. |settings| points to a dictionary containing all
+  // the print request parameters.
+  void HandlePrintToPdf(const base::DictionaryValue& settings);
+
   // Handles the request to hide the preview tab for printing. |args| is unused.
   void HandleHidePreview(const base::ListValue* args);
 
   // Handles the request to cancel the pending print request. |args| is unused.
   void HandleCancelPendingPrintRequest(const base::ListValue* args);
 
   // Handles a request to back up data about the last used cloud print
   // printer.
   // First element of |args| is the printer name.
   // Second element of |args| is the current cloud print data JSON.
@@ skipping 58 matching lines @@
 
   // Adds all the recorded stats taken so far to histogram counts.
   void ReportStats();
 
   // Hides the preview tab for printing.
   void HidePreviewTab();
 
   // Clears initiator tab details for this preview tab.
   void ClearInitiatorTabDetails();
 
+  // Posts a task to save to pdf at |print_to_pdf_path_|.
+  void PostPrintToPdfTask();
+
   // Pointer to current print system.
   scoped_refptr<printing::PrintBackend> print_backend_;
 
   // The underlying dialog object.
   scoped_refptr<SelectFileDialog> select_file_dialog_;
 
   static FilePath* last_saved_path_;
   static std::string* last_used_printer_cloud_print_data_;
   static std::string* last_used_printer_name_;
   static bool last_used_color_setting_;
 
   // A count of how many requests received to regenerate preview data.
   // Initialized to 0 then incremented and emitted to a histogram.
   int regenerate_preview_request_count_;
 
   // A count of how many requests received to show manage printers dialog.
   int manage_printers_dialog_request_count_;
 
   // Whether we have already logged a failed print preview.
   bool reported_failed_preview_;
 
   // Whether we have already logged the number of printers this session.
   bool has_logged_printers_count_;
 
+  // Holds the path to the print to pdf request. It is empty if no such request
+  // exists.
+  scoped_ptr<FilePath> print_to_pdf_path_;
+
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_HANDLER_H_