[Android] Prompt with infobar on filename conflict

chrome/browser/android/download_overwrite_infobar_delegate.cc

+// Copyright 2014 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.
+
+#include "chrome/browser/android/download_overwrite_infobar_delegate.h"
+
+#include "base/files/file_path.h"
+#include "base/files/file_util.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/stringprintf.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/infobars/infobar_service.h"
+#include "chrome/browser/ui/android/infobars/download_overwrite_infobar.h"
+#include "chrome/grit/generated_resources.h"
+#include "components/infobars/core/infobar.h"
+#include "content/public/browser/download_item.h"
+#include "content/public/browser/web_contents.h"
+#include "grit/theme_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+
+namespace chrome {
+namespace android {
+
+DownloadOverwriteInfoBarDelegate::~DownloadOverwriteInfoBarDelegate() {
+}
+
+// static
+infobars::InfoBar* DownloadOverwriteInfoBarDelegate::Create(
+    content::DownloadItem* download,
+    const base::FilePath& suggested_path,
+    const DownloadTargetDeterminerDelegate::FileSelectedCallback& callback) {
+  if (!download)

[Ted C, 2014/10/29 00:15:12]

At a minimum, you should be able to remove this as it is not
consistent with the other file.

[Changwan Ryu, 2015/02/16 01:01:03]

Done.

+    return NULL;
+
+  content::WebContents* web_contents = download->GetWebContents();
+  if (!web_contents)
+    return NULL;
+
+  InfoBarService* infobar_service =
+      InfoBarService::FromWebContents(web_contents);
+
+  scoped_ptr<infobars::InfoBar> infobar =
+      DownloadOverwriteInfoBar::CreateInfoBar(
+          make_scoped_ptr(new DownloadOverwriteInfoBarDelegate(
+              download, suggested_path, callback)));
+  return infobar_service->AddInfoBar(infobar.Pass());
+}
+
+bool DownloadOverwriteInfoBarDelegate::AcceptOverwrite() {
+  file_selected_callback_.Run(suggested_download_path_);
+  return true;
+}
+
+bool DownloadOverwriteInfoBarDelegate::CreateNewFile() {
+  // TODO(changwan): use GetUniquePath() instead once
+  // https://codereview.chromium.org/493363003/ lands.
+  int uniquifier = base::GetUniquePathNumber(suggested_download_path_,
+                                             base::FilePath::StringType());
+  if (uniquifier > 0) {
+    file_selected_callback_.Run(
+        suggested_download_path_.InsertBeforeExtensionASCII(
+            base::StringPrintf(" (%d)", uniquifier)));
+  } else {
+    file_selected_callback_.Run(base::FilePath());
+  }
+  return true;
+}
+
+std::string DownloadOverwriteInfoBarDelegate::GetFileName() const {
+  return suggested_download_path_.BaseName().value();
+}
+
+std::string DownloadOverwriteInfoBarDelegate::GetDirName() const {
+  return suggested_download_path_.DirName().BaseName().value();
+}
+
+std::string DownloadOverwriteInfoBarDelegate::GetDirFullPath() const {
+  return suggested_download_path_.DirName().value();
+}
+
+void DownloadOverwriteInfoBarDelegate::InfoBarDismissed() {
+  file_selected_callback_.Run(base::FilePath());
+}
+
+DownloadOverwriteInfoBarDelegate::DownloadOverwriteInfoBarDelegate(
+    content::DownloadItem* download,
+    const base::FilePath& suggested_download_path,
+    const DownloadTargetDeterminerDelegate::FileSelectedCallback&
+        file_selected_callback)
+    : suggested_download_path_(suggested_download_path),
+      file_selected_callback_(file_selected_callback) {
+}
+
+}  // namespace android
+}  // namespace chrome