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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/download/download_request_infobar_delegate.h"
      6 
      7 #include "chrome/browser/infobars/infobar.h"
      8 #include "chrome/browser/infobars/infobar_service.h"
      9 #include "grit/generated_resources.h"
     10 #include "grit/theme_resources.h"
     11 #include "ui/base/l10n/l10n_util.h"
     12 
     13 DownloadRequestInfoBarDelegate::FakeCreateCallback*
     14     DownloadRequestInfoBarDelegate::callback_ = NULL;
     15 
     16 DownloadRequestInfoBarDelegate::~DownloadRequestInfoBarDelegate() {
     17   if (!responded_ && host_)
     18     host_->CancelOnce();
     19 }
     20 
     21 // static
     22 void DownloadRequestInfoBarDelegate::Create(
     23     InfoBarService* infobar_service,
     24     base::WeakPtr<DownloadRequestLimiter::TabDownloadState> host) {
     25   if (DownloadRequestInfoBarDelegate::callback_ &&
     26       !DownloadRequestInfoBarDelegate::callback_->is_null()) {
     27     DownloadRequestInfoBarDelegate::callback_->Run(infobar_service, host);
     28   } else if (!infobar_service) {
     29     // |web_contents| may not have a InfoBarService if it's actually a
     30     // WebContents like those used for extension popups/bubbles and hosted apps
     31     // etc.
     32     // TODO(benjhayden): If this is an automatic download from an extension,
     33     // it would be convenient for the extension author if we send a message to
     34     // the extension's DevTools console (as we do for CSP) about how
     35     // extensions should use chrome.downloads.download() (requires the
     36     // "downloads" permission) to automatically download >1 files.
     37     host->Cancel();
     38   } else {
     39     infobar_service->AddInfoBar(ConfirmInfoBarDelegate::CreateInfoBar(
     40         scoped_ptr<ConfirmInfoBarDelegate>(
     41             new DownloadRequestInfoBarDelegate(host))));
     42   }
     43 }
     44 
     45 // static
     46 void DownloadRequestInfoBarDelegate::SetCallbackForTesting(
     47     FakeCreateCallback* callback) {
     48   DownloadRequestInfoBarDelegate::callback_ = callback;
     49 }
     50 
     51 DownloadRequestInfoBarDelegate::DownloadRequestInfoBarDelegate(
     52     base::WeakPtr<DownloadRequestLimiter::TabDownloadState> host)
     53     : ConfirmInfoBarDelegate(),
     54       responded_(false),
     55       host_(host) {
     56 }
     57 
     58 int DownloadRequestInfoBarDelegate::GetIconID() const {
     59   return IDR_INFOBAR_MULTIPLE_DOWNLOADS;
     60 }
     61 
     62 base::string16 DownloadRequestInfoBarDelegate::GetMessageText() const {
     63   return l10n_util::GetStringUTF16(IDS_MULTI_DOWNLOAD_WARNING);
     64 }
     65 
     66 base::string16 DownloadRequestInfoBarDelegate::GetButtonLabel(
     67     InfoBarButton button) const {
     68   return l10n_util::GetStringUTF16((button == BUTTON_OK) ?
     69       IDS_MULTI_DOWNLOAD_WARNING_ALLOW : IDS_MULTI_DOWNLOAD_WARNING_DENY);
     70 }
     71 
     72 bool DownloadRequestInfoBarDelegate::Accept() {
     73   DCHECK(!responded_);
     74   responded_ = true;
     75   if (host_) {
     76     // This may invalidate |host_|.
     77     host_->Accept();
     78   }
     79   return !host_;
     80 }
     81 
     82 bool DownloadRequestInfoBarDelegate::Cancel() {
     83   DCHECK(!responded_);
     84   responded_ = true;
     85   if (host_) {
     86     // This may invalidate |host_|.
     87     host_->Cancel();
     88   }
     89   return !host_;
     90 }
     91