shell_dialogs.cc revision ddb351dbec246cf1fab5ec20d2d5520909041de1 
1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/ui/shell_dialogs.h"
6
7#include "base/logging.h"
8#include "chrome/browser/browser_process.h"
9#include "chrome/browser/prefs/pref_service.h"
10#include "chrome/browser/tab_contents/simple_alert_infobar_delegate.h"
11#include "chrome/common/pref_names.h"
12#include "content/browser/tab_contents/tab_contents.h"
13#include "grit/generated_resources.h"
14#include "ui/base/l10n/l10n_util.h"
15
16SelectFileDialog::FileTypeInfo::FileTypeInfo() : include_all_files(false) {}
17
18SelectFileDialog::FileTypeInfo::~FileTypeInfo() {}
19
20SelectFileDialog::SelectFileDialog(Listener* listener)
21    : listener_(listener) {
22  DCHECK(listener_);
23}
24
25SelectFileDialog::~SelectFileDialog() {}
26
27bool SelectFileDialog::CanOpenSelectFileDialog() {
28  DCHECK(g_browser_process);
29
30  // local_state() can return NULL for tests.
31  if (!g_browser_process->local_state())
32    return false;
33
34  return !g_browser_process->local_state()->FindPreference(
35             prefs::kAllowFileSelectionDialogs) ||
36         g_browser_process->local_state()->GetBoolean(
37             prefs::kAllowFileSelectionDialogs);
38}
39
40void SelectFileDialog::SelectFile(Type type,
41                                  const string16& title,
42                                  const FilePath& default_path,
43                                  const FileTypeInfo* file_types,
44                                  int file_type_index,
45                                  const FilePath::StringType& default_extension,
46                                  TabContents* source_contents,
47                                  gfx::NativeWindow owning_window,
48                                  void* params) {
49  DCHECK(listener_);
50
51  if (!CanOpenSelectFileDialog()) {
52    // Show the InfoBar saying that file-selection dialogs are disabled.
53    if (source_contents) {
54      source_contents->AddInfoBar(new SimpleAlertInfoBarDelegate(
55          source_contents,
56          NULL,
57          l10n_util::GetStringUTF16(IDS_FILE_SELECTION_DIALOG_INFOBAR),
58          true));
59    } else {
60      LOG(WARNING) << "File-selection dialogs are disabled but no TabContents "
61                   << "is given to display the InfoBar.";
62    }
63
64    // Inform the listener that no file was selected.
65    // Post a task rather than calling FileSelectionCanceled directly to ensure
66    // that the listener is called asynchronously.
67    MessageLoop::current()->PostTask(FROM_HERE,
68                                     NewRunnableMethod(
69                                         this,
70                                         &SelectFileDialog::CancelFileSelection,
71                                         params));
72    return;
73  }
74  // Call the platform specific implementation of the file selection dialog.
75  SelectFileImpl(type, title, default_path, file_types, file_type_index,
76                 default_extension, owning_window, params);
77}
78
79void SelectFileDialog::CancelFileSelection(void* params) {
80  if (listener_)
81    listener_->FileSelectionCanceled(params);
82}
83