Add support for a directory file chooser command, which creates a file list b...

chrome/browser/tab_contents/tab_contents_file_select_helper.h

+// Copyright (c) 2010 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_TAB_CONTENTS_TAB_CONTENTS_FILE_SELECT_HELPER_H_
+#define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_FILE_SELECT_HELPER_H_
+#pragma once
+
+#include <vector>
+
+#include "chrome/browser/shell_dialogs.h"
+#include "chrome/browser/renderer_host/render_view_host_delegate.h"
+#include "net/base/directory_lister.h"
+
+class RenderViewHost;
+class TabContents;
+struct ViewHostMsg_RunFileChooser_Params;
+
+class TabContentsFileSelectHelper
+    : public SelectFileDialog::Listener,
+      public net::DirectoryLister::DirectoryListerDelegate,
+      public RenderViewHostDelegate::FileSelect {
+ public:
+  explicit TabContentsFileSelectHelper(TabContents* tab_contents);
+
+  ~TabContentsFileSelectHelper();
+
+  // SelectFileDialog::Listener
+  virtual void FileSelected(const FilePath& path, int index, void* params);
+  virtual void MultiFilesSelected(const std::vector<FilePath>& files,
+                                  void* params);
+  virtual void FileSelectionCanceled(void* params);
+
+  // net::DirectoryLister::DirectoryListerDelegate
+  virtual void OnListFile(
+      const net::DirectoryLister::DirectoryListerData& data);
+  virtual void OnListDone(int error);
+
+  // RenderViewHostDelegate::FileSelect
+  virtual void RunFileChooser(const ViewHostMsg_RunFileChooser_Params& params);
+
+ private:
+  // Returns the RenderViewHost of tab_contents_.
+  RenderViewHost* GetRenderViewHost();
+
+  // Helper method for handling the SelectFileDialog::Listener callbacks.
+  void DirectorySelected(const FilePath& path);
+
+  // The tab contents this class is helping.  |tab_contents_| owns this object,
+  // so this pointer is guaranteed to be valid.
+  TabContents* tab_contents_;
+
+  // Dialog box used for choosing files to upload from file form fields.
+  scoped_refptr<SelectFileDialog> select_file_dialog_;
+
+  // The type of file dialog last shown.
+  SelectFileDialog::Type dialog_type_;
+
+  // The current directory lister (runs on a separate thread).
+  scoped_refptr<net::DirectoryLister> directory_lister_;
+
+  // The current directory lister results, which may update incrementally
+  // as the listing proceeds.
+  std::vector<FilePath> directory_lister_results_;
+
+  DISALLOW_COPY_AND_ASSIGN(TabContentsFileSelectHelper);
+};
+
+#endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_FILE_SELECT_HELPER_H_