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      1 // Copyright (c) 2012 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/chrome_select_file_policy.h"
      6 
      7 #include "base/bind.h"
      8 #include "base/callback.h"
      9 #include "base/logging.h"
     10 #include "base/prefs/pref_service.h"
     11 #include "chrome/browser/browser_process.h"
     12 #include "chrome/browser/infobars/infobar_service.h"
     13 #include "chrome/browser/infobars/simple_alert_infobar_delegate.h"
     14 #include "chrome/common/pref_names.h"
     15 #include "grit/generated_resources.h"
     16 #include "ui/base/l10n/l10n_util.h"
     17 
     18 ChromeSelectFilePolicy::ChromeSelectFilePolicy(
     19     content::WebContents* source_contents)
     20     : source_contents_(source_contents) {
     21 }
     22 
     23 ChromeSelectFilePolicy::~ChromeSelectFilePolicy() {}
     24 
     25 bool ChromeSelectFilePolicy::CanOpenSelectFileDialog() {
     26   return FileSelectDialogsAllowed();
     27 }
     28 
     29 void ChromeSelectFilePolicy::SelectFileDenied() {
     30   // Show the InfoBar saying that file-selection dialogs are disabled.
     31   if (source_contents_) {
     32     SimpleAlertInfoBarDelegate::Create(
     33         InfoBarService::FromWebContents(source_contents_),
     34         InfoBarDelegate::kNoIconID,
     35         l10n_util::GetStringUTF16(IDS_FILE_SELECTION_DIALOG_INFOBAR), true);
     36   } else {
     37     LOG(WARNING) << "File-selection dialogs are disabled but no WebContents "
     38                  << "is given to display the InfoBar.";
     39   }
     40 }
     41 
     42 // static
     43 bool ChromeSelectFilePolicy::FileSelectDialogsAllowed() {
     44   DCHECK(g_browser_process);
     45 
     46   // local_state() can return NULL for tests.
     47   if (!g_browser_process->local_state())
     48     return false;
     49 
     50   return !g_browser_process->local_state()->FindPreference(
     51              prefs::kAllowFileSelectionDialogs) ||
     52          g_browser_process->local_state()->GetBoolean(
     53              prefs::kAllowFileSelectionDialogs);
     54 }
     55