Add Password Autofill Manager to New Autofill

chrome/browser/autofill/password_autofill_manager.cc

Index: chrome/browser/autofill/password_autofill_manager.cc
diff --git a/chrome/browser/autofill/password_autofill_manager.cc b/chrome/browser/autofill/password_autofill_manager.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c4aed9e9ad0a82a8b0564446741aceb110d88989
--- /dev/null
+++ b/chrome/browser/autofill/password_autofill_manager.cc
@@ -0,0 +1,118 @@
+// Copyright (c) 2012 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/autofill/password_autofill_manager.h"
+#include "chrome/common/autofill_messages.h"
+#include "content/public/browser/render_view_host.h"
+#include "ui/base/keycodes/keyboard_codes.h"
+
+////////////////////////////////////////////////////////////////////////////////
+// PasswordAutofillManager, public:
+
+PasswordAutofillManager::PasswordAutofillManager(
+    content::RenderViewHost* render_view_host)
+    : render_view_host_(render_view_host) {
+}
+
+PasswordAutofillManager::~PasswordAutofillManager() {
+}
+
+bool PasswordAutofillManager::WouldHandleKeyDown(
+    const webkit::forms::FormField& field) {
+  LoginToPasswordInfoMap::iterator iter = login_to_password_info_.find(field);
+  if (iter == login_to_password_info_.end())
+    return false;
+
+  return true;
+}
+
+bool PasswordAutofillManager::DidAcceptAutofillSuggestion(
+    const webkit::forms::FormField& field,
+    const string16& value) {
+  webkit::forms::FormField input;
+  PasswordInfo password;
+  if (!FindLoginInfo(field, &input, &password))
+    return false;
+
+  if (WillFillUserNameAndPassword(input, password.fill_data)) {
+    if (render_view_host_) {
+      render_view_host_->Send(new AutofillMsg_PasswordAcceptAutofillSuggestion(
+          render_view_host_->GetRoutingID(),
+          value));
+    }
+    return true;
+  }
+
+  return false;
+}
+
+bool PasswordAutofillManager::DidSelectAutofillSuggestion(
+    const webkit::forms::FormField& field) {
+  webkit::forms::FormField input;
+  PasswordInfo password;
+  return FindLoginInfo(field, &input, &password);
+}
+
+bool PasswordAutofillManager::DidClearAutofillSelection(
+    const webkit::forms::FormField& field) {
+  webkit::forms::FormField input;
+  PasswordInfo password;
+  return FindLoginInfo(field, &input, &password);
+}
+
+void PasswordAutofillManager::PasswordFormMapping(
+    const webkit::forms::FormField& username_element,
+    const webkit::forms::PasswordFormFillData& fill_data) {
+  PasswordInfo password_info;
+  password_info.fill_data = fill_data;
+
+  login_to_password_info_[username_element] = password_info;
+}
+
+void PasswordAutofillManager::FrameClosing() {
+  // When this function lived in the renderer only login info that was added
+  // with the same frame_id as this closing frame was removed instead of all
+  // the elements.
+  // If weird behaviour occurs with login info disappearing from a page, this
+  // could be the cause.
+
+  login_to_password_info_.clear();
+}

[Ilya Sherman, 2012/03/09 22:00:26]

I don't think this is safe, because the frame that's closing could be an
unrelated sub-frame.  My suggestion was to clear() the map as part of
AutofillManager's Reset() (i.e. when the *main* frame is closed/navigated)

[csharp, 2012/03/12 15:11:56]

Ah, that makes much more sense, sorry for misreading your last comment. Fixed.

+
+////////////////////////////////////////////////////////////////////////////////
+// PasswordAutofillManager, private:
+
+bool PasswordAutofillManager::WillFillUserNameAndPassword(
+    const webkit::forms::FormField& username_element,
+    const webkit::forms::PasswordFormFillData& fill_data) {
+  string16 current_username = username_element.value;
+
+  // Look for any suitable matches to current field text.
+  if (fill_data.basic_data.fields[0].value == current_username) {
+    return true;
+  } else {
+    // Scan additional logins for a match.
+    webkit::forms::PasswordFormFillData::LoginCollection::const_iterator iter;
+    for (iter = fill_data.additional_logins.begin();
+         iter != fill_data.additional_logins.end(); ++iter) {
+      if (iter->first == current_username)
+        return true;
+    }
+  }
+
+  return false;
+}
+
+bool PasswordAutofillManager::FindLoginInfo(
+    const webkit::forms::FormField& field,
+    webkit::forms::FormField* found_input,
+    PasswordInfo* found_password) {
+  LoginToPasswordInfoMap::iterator iter = login_to_password_info_.find(field);
+  if (iter == login_to_password_info_.end())
+    return false;
+
+  *found_input = field;
+  *found_password = iter->second;
+  return true;
+}