Print Preview: Store preview data in the print preview handler....

chrome/browser/dom_ui/print_preview_handler.cc

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
 #include "chrome/browser/dom_ui/print_preview_handler.h"
 
+#include "base/shared_memory.h"
 #include "base/values.h"
 #include "printing/backend/print_backend.h"
 
 PrintPreviewHandler::PrintPreviewHandler()
-    : print_backend_(printing::PrintBackend::CreateInstance(NULL)) {
+    : print_backend_(printing::PrintBackend::CreateInstance(NULL)),
+      data_(std::make_pair(static_cast<base::SharedMemory*>(NULL), 0U)) {
 }
 
 PrintPreviewHandler::~PrintPreviewHandler() {
+  delete data_.first;
+}
+
+void PrintPreviewHandler::GetPrintPreviewData(PrintPreviewData* data) {
+  *data = data_;
+}
+
+void PrintPreviewHandler::SetPrintPreviewData(const PrintPreviewData& data) {
+  delete data_.first;
+  data_ = data;
 }
 
 void PrintPreviewHandler::RegisterMessages() {
   dom_ui_->RegisterMessageCallback("getPreview",
       NewCallback(this, &PrintPreviewHandler::HandleGetPreview));
   dom_ui_->RegisterMessageCallback("getPrinters",
       NewCallback(this, &PrintPreviewHandler::HandleGetPrinters));
 }
 
 void PrintPreviewHandler::HandleGetPreview(const ListValue*) {
-  // TODO(thestig) Hook this up properly when PDF generation works.
-  StringValue dummy_url("chrome://print/dummy.pdf");
+  StringValue dummy_url("chrome://print/print.pdf");
   dom_ui_->CallJavascriptFunction(L"createPDFPlugin", dummy_url);
 }
 
 void PrintPreviewHandler::HandleGetPrinters(const ListValue*) {
   ListValue printers;
 
   printing::PrinterList printer_list;
   print_backend_->EnumeratePrinters(&printer_list);
   for (printing::PrinterList::iterator index = printer_list.begin();
        index != printer_list.end(); ++index) {
     printers.Append(new StringValue(index->printer_name));
   }
 
   dom_ui_->CallJavascriptFunction(L"setPrinters", printers);
 }