Credentials chooser UI for Android.

chrome/browser/password_manager/account_chooser_infobar_delegate_android.cc

+// Copyright 2015 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/password_manager/account_chooser_infobar_delegate_android.h"
+
+#include <cstddef>

[Peter Kasting, 2015/02/16 20:37:07]

You don't need this.

[melandory, 2015/02/17 16:16:57]

Done.

+
+#include "components/autofill/core/common/password_form.h"
+#include "components/password_manager/content/common/credential_manager_types.h"
+
+AccountChooserInfoBarDelegateAndroid::AccountChooserInfoBarDelegateAndroid(
+    ManagePasswordsUIController* ui_controller)
+    : ui_controller_(ui_controller) {
+}
+
+void AccountChooserInfoBarDelegateAndroid::choose_credential(
+    unsigned int credential_index,
+    password_manager::CredentialType credential_type) {
+  using namespace password_manager;
+  const size_t federated_credentials_size =
+      ui_controller_->federated_credentials_forms().size();
+  const size_t local_credentials_size =
+      ui_controller_->local_credentials_forms().size();
+  autofill::PasswordForm* password_form = nullptr;
+  if (credential_type == CredentialType::CREDENTIAL_TYPE_LOCAL &&
+      credential_index < local_credentials_size) {
+    password_form = ui_controller_->local_credentials_forms()[credential_index];
+  } else if (credential_type == CredentialType::CREDENTIAL_TYPE_FEDERATED &&
+             credential_index < federated_credentials_size) {
+    password_form =
+        ui_controller_->federated_credentials_forms()[credential_index];
+  }
+  if (password_form)
+    ui_controller_->ChooseCredential(*password_form, credential_type);

[Peter Kasting, 2015/02/16 20:37:07]

Nit: Simpler:

  if ((credential_type != CredentialType::CREDENTIAL_TYPE_LOCAL) &&
      (credential_type != CredentialType::CREDENTIAL_TYPE_FEDERATED))
    return;
  auto& credentials_forms =
      (credential_type == CredentialType::CREDENTIAL_TYPE_LOCAL) ?
          ui_controller_->local_credentials_forms() :
          ui_controller_->federated_credentials_forms();
  if (credential_index < credentials_forms.size()) {
    ui_controller_->ChooseCredential(*credentials_forms[credential_index],
                                     credential_type);
  }

You can change the initial conditional to a DCHECK if you know the caller will
only ever pass one of those two values.

[melandory, 2015/02/17 16:16:57]

Great! I didn't like my code, but nothing more elegant haven't come to me.

+}
+
+AccountChooserInfoBarDelegateAndroid*
+AccountChooserInfoBarDelegateAndroid::AsAccountChooserInfoBarDelegateAndroid() {
+  return this;
+}
+
+infobars::InfoBarDelegate::Type
+AccountChooserInfoBarDelegateAndroid::GetInfoBarType() const {
+  return PAGE_ACTION_TYPE;
+}