Prepopulating "Print To PDF" select file dialog with a suggested filename and path.

chrome/browser/ui/webui/print_preview_handler.cc

Index: chrome/browser/ui/webui/print_preview_handler.cc
diff --git a/chrome/browser/ui/webui/print_preview_handler.cc b/chrome/browser/ui/webui/print_preview_handler.cc
index 08f506a787b480d3ee511441b2603387e2e32120..101b8b6058198d0230a4cdc7860e2019c70bdf9b 100644
--- a/chrome/browser/ui/webui/print_preview_handler.cc
+++ b/chrome/browser/ui/webui/print_preview_handler.cc
@@ -6,13 +6,16 @@
 
 #include <string>
 
+#include "base/i18n/file_util_icu.h"
 #include "base/json/json_reader.h"
+#include "base/path_service.h"
 #include "base/threading/thread.h"
 #include "base/values.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/printing/print_preview_tab_controller.h"
 #include "chrome/browser/ui/webui/print_preview_ui_html_source.h"
 #include "chrome/browser/ui/webui/print_preview_ui.h"
+#include "chrome/common/chrome_paths.h"
 #include "chrome/common/print_messages.h"
 #include "content/browser/browser_thread.h"
 #include "content/browser/renderer_host/render_view_host.h"
@@ -202,11 +205,24 @@ void PrintPreviewHandler::HandlePrint(const ListValue* args) {
   if (!settings.get())
     return;
 
-  bool print_to_pdf;
+  bool print_to_pdf = false;
   settings->GetBoolean(printing::kSettingPrintToPDF, &print_to_pdf);
 
   if (print_to_pdf) {
-    SelectFile();
+    // Pre-populating select file dialog with print job title.
+    FilePath::StringType print_job_title;
+    bool ret = settings->GetString(printing::kPrintJobTitle, &print_job_title);
+    if (!ret || print_job_title.length() == 0)

[kmadhusu, 2011/04/05 20:57:48]

If the "print_job_title" is empty, I think its better to set the default print
document title (IDS_DEFAULT_PRINT_DOCUMENT_TITLE) and proceed to display the
Save As file dialog box.

[dpapad, 2011/04/09 01:38:06]

Done.

+      return;
+
+    file_util::ReplaceIllegalCharactersInPath(&print_job_title, '_');
+    FilePath default_path;
+    PathService::Get(chrome::DIR_USER_DOCUMENTS, &default_path);
+    FilePath default_filename(print_job_title);
+    default_filename =
+        default_filename.ReplaceExtension(FILE_PATH_LITERAL("pdf"));
+
+    SelectFile(default_path.Append(default_filename));
   } else {
     RenderViewHost* rvh = web_ui_->GetRenderViewHost();
     rvh->Send(new PrintMsg_PrintForPrintPreview(rvh->routing_id(), *settings));
@@ -240,7 +256,7 @@ void PrintPreviewHandler::ProcessLandscapeSetting(
   }
 }
 
-void PrintPreviewHandler::SelectFile() {
+void PrintPreviewHandler::SelectFile(const FilePath& default_path) {
   SelectFileDialog::FileTypeInfo file_type_info;
   file_type_info.extensions.resize(1);
   file_type_info.extensions[0].push_back(FILE_PATH_LITERAL("pdf"));
@@ -251,7 +267,7 @@ void PrintPreviewHandler::SelectFile() {
   select_file_dialog_->SelectFile(
       SelectFileDialog::SELECT_SAVEAS_FILE,
       string16(),
-      FilePath(),
+      default_path,
       &file_type_info,
       0,
       FILE_PATH_LITERAL(""),