Credentials chooser UI for Android.

chrome/browser/ui/android/infobars/account_chooser_infobar.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/ui/android/infobars/account_chooser_infobar.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_array.h"
+#include "chrome/browser/infobars/infobar_service.h"
+#include "chrome/browser/password_manager/account_chooser_infobar_delegate_android.h"
+#include "components/password_manager/content/common/credential_manager_types.h"
+#include "jni/AccountChooserInfoBar_jni.h"
+
+namespace {
+
+void NotifyDelegateAboutChoosenCredential(

[Peter Kasting, 2015/02/18 21:44:17]

Nit: "Choosen" isn't a word.  Why not just call this ChooseCredential()?

[melandory, 2015/02/19 13:38:01]

I'll remove this function, because with GetDelegate it lost its purpose. 

+    infobars::InfoBarDelegate* delegate,
+    int credential_item,
+    password_manager::CredentialType credential_type) {
+  AccountChooserInfoBarDelegateAndroid* infobar_delegate =
+      static_cast<AccountChooserInfoBarDelegateAndroid*>(delegate);

[Peter Kasting, 2015/02/18 21:44:17]

Nit: You do this twice in this file.  If you define a private helper:

AccountChooserInfoBarDelegateAndroid* AccountChooserInfoBar::GetDelegate() {
  return static_cast<AccountChooserInfoBarDelegateAndroid*>(delegate());
}

...then you can avoid this cast entirely by passing GetDelegate() directly from
the callers, and you can avoid the temp in CreateRenderInfoBar() by simply doing
"GetDelegate()->local_credentials_forms()" in the for loop directly.

[melandory, 2015/02/19 13:38:01]

Done.

+  infobar_delegate->ChooseCredential(credential_item, credential_type);
+}
+
+}  // namespace
+
+AccountChooserInfoBar::AccountChooserInfoBar(
+    scoped_ptr<AccountChooserInfoBarDelegateAndroid> delegate)
+    : InfoBarAndroid(delegate.Pass()) {
+}
+
+base::android::ScopedJavaLocalRef<jobject>
+AccountChooserInfoBar::CreateRenderInfoBar(JNIEnv* env) {
+  AccountChooserInfoBarDelegateAndroid* infobar_delegate =
+      static_cast<AccountChooserInfoBarDelegateAndroid*>(delegate());
+  std::vector<base::string16> usernames;
+  // TODO(melandory): Federated credentials should be processed also.
+  for (auto password_form : infobar_delegate->local_credentials_forms())
+    usernames.push_back(password_form->username_value);
+  base::android::ScopedJavaLocalRef<jobjectArray> java_usernames =
+      base::android::ToJavaArrayOfStrings(env, usernames);
+  return Java_AccountChooserInfoBar_show(env, reinterpret_cast<intptr_t>(this),
+                                         GetEnumeratedIconId(),
+                                         java_usernames.obj());
+}
+
+void AccountChooserInfoBar::OnCredentialClicked(JNIEnv* env,
+                                                jobject obj,
+                                                jint credential_item,
+                                                jint credential_type) {
+  NotifyDelegateAboutChoosenCredential(
+      delegate(), credential_item,
+      static_cast<password_manager::CredentialType>(credential_type));
+  RemoveSelf();
+}
+
+void AccountChooserInfoBar::ProcessButton(int action,
+                                          const std::string& action_value) {
+  // We're closing; don't call anything, it might access
+  // the owner.

[Peter Kasting, 2015/02/18 21:44:17]

Nit: This comment can all fit on one line, and should go on the EOL of the
return statement (since otherwise it unconditionally says we're closing when
that's actually conditional).

[melandory, 2015/02/19 13:38:01]

Done.

+  if (!owner())
+    return;
+  NotifyDelegateAboutChoosenCredential(
+      delegate(), -1, password_manager::CredentialType::CREDENTIAL_TYPE_EMPTY);
+  RemoveSelf();
+}
+
+bool RegisterAccountChooserInfoBar(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}