Start consolidating cross-port file selection code into ui/base/dialogs.

chrome/browser/ui/select_file_dialog.h

 // Copyright (c) 2012 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_SELECT_FILE_DIALOG_H_
 #define CHROME_BROWSER_UI_SELECT_FILE_DIALOG_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
+#include "base/basictypes.h"
+#include "base/callback_forward.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
 #include "ui/base/dialogs/base_shell_dialog.h"
 #include "ui/gfx/native_widget_types.h"
 
+namespace ui {
+class SelectFilePolicy;
+}
+
 namespace content {
 class WebContents;
 }
 
 namespace ui {
 struct SelectedFileInfo;
 }
 
 // This function is declared extern such that it is accessible for unit tests
 // in /chrome/browser/ui/views/select_file_dialog_win_unittest.cc
@@ skipping 51 matching lines @@
     // Notifies the Listener that the file/folder selection was aborted (via
     // the  user canceling or closing the selection dialog box, for example).
     // |params| is contextual passed to SelectFile.
     virtual void FileSelectionCanceled(void* params) {}
 
    protected:
     virtual ~Listener() {}
   };
 
   // Creates a dialog box helper. This object is ref-counted, but the returned
-  // object will have no reference (refcount is 0).
-  static SelectFileDialog* Create(Listener* listener);
+  // object will have no reference (refcount is 0). |policy| is an optional
+  // class that can prevent showing a dialog.
+  static SelectFileDialog* Create(Listener* listener,
+                                  ui::SelectFilePolicy* policy);
 
   // Holds information about allowed extensions on a file save dialog.
   // |extensions| is a list of allowed extensions. For example, it might be
   //   { { "htm", "html" }, { "txt" } }. Only pass more than one extension
   //   in the inner vector if the extensions are equivalent. Do NOT include
   //   leading periods.
   // |extension_description_overrides| overrides the system descriptions of the
   //   specified extensions. Entries correspond to |extensions|; if left blank
   //   the system descriptions will be used.
   // |include_all_files| specifies whether there will be a filter added for all
@@ skipping 21 matching lines @@
   // |default_path| is the default path and suggested file name to be shown in
   //   the dialog. This only works for SELECT_SAVEAS_FILE and SELECT_OPEN_FILE.
   //   Can be an empty string to indicate the platform default.
   // |file_types| holds the information about the file types allowed. Pass NULL
   //   to get no special behavior
   // |file_type_index| is the 1-based index into the file type list in
   //   |file_types|. Specify 0 if you don't need to specify extension behavior.
   // |default_extension| is the default extension to add to the file if the
   //   user doesn't type one. This should NOT include the '.'. On Windows, if
   //   you specify this you must also specify |file_types|.
-  // |source_contents| is the WebContents the call is originating from, i.e.
-  //   where the InfoBar should be shown in case file-selection dialogs are
-  //   forbidden by policy, or NULL if no InfoBar should be shown.
   // |owning_window| is the window the dialog is modal to, or NULL for a
   //   modeless dialog.
   // |params| is data from the calling context which will be passed through to
   //   the listener. Can be NULL.
   // NOTE: only one instance of any shell dialog can be shown per owning_window
   //       at a time (for obvious reasons).
   void SelectFile(Type type,
                   const string16& title,
                   const FilePath& default_path,
                   const FileTypeInfo* file_types,
                   int file_type_index,
                   const FilePath::StringType& default_extension,
-                  content::WebContents* source_contents,
                   gfx::NativeWindow owning_window,
                   void* params);
   bool HasMultipleFileTypeChoices();
 
  protected:
   friend class base::RefCountedThreadSafe<SelectFileDialog>;
-  explicit SelectFileDialog(Listener* listener);
+  explicit SelectFileDialog(Listener* listener,
+                            ui::SelectFilePolicy* policy);
   virtual ~SelectFileDialog();
 
   // Displays the actual file-selection dialog.
   // This is overridden in the platform-specific descendants of FileSelectDialog
   // and gets called from SelectFile after testing the
   // AllowFileSelectionDialogs-Policy.
   virtual void SelectFileImpl(Type type,
                               const string16& title,
                               const FilePath& default_path,
                               const FileTypeInfo* file_types,
@@ skipping 10 matching lines @@
   // testing if the AllowFileSelectionDialogs-Policy is
   // either unset or set to true.
   bool CanOpenSelectFileDialog();
 
   // Informs the |listener_| that the file selection dialog was canceled. Moved
   // to a function for being able to post it to the message loop.
   void CancelFileSelection(void* params);
 
   // Returns true if the dialog has multiple file type choices.
   virtual bool HasMultipleFileTypeChoicesImpl() = 0;
+
+  scoped_ptr<ui::SelectFilePolicy> select_file_policy_;
+
+  DISALLOW_COPY_AND_ASSIGN(SelectFileDialog);
 };
 
 #endif  // CHROME_BROWSER_UI_SELECT_FILE_DIALOG_H_