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..e7ae5bbf2bcacf617e9133b79842c88d590e42f4
--- /dev/null
+++ b/chrome/browser/autofill/password_autofill_manager.cc
@@ -0,0 +1,101 @@
+// 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 "content/public/browser/web_contents.h"
+#include "ui/base/keycodes/keyboard_codes.h"
+
+////////////////////////////////////////////////////////////////////////////////
+// PasswordAutofillManager, public:
+
+PasswordAutofillManager::PasswordAutofillManager(
+    content::WebContents* web_contents) : web_contents_(web_contents) {

[Ilya Sherman, 2012/04/02 22:07:29]

nit: Can we store a pointer just to the RenderViewHost rather than the
WebContents?  In fact, thought I remembered you already making this change in an
earlier patch set -- did you realize that this approach doesn't work for some
reason?

[csharp, 2012/04/03 12:25:55]

Ya, I had passed in a pointer to the RenderViewHost before but it seems that
between this object is constructed and when it needs to start send messages the
pointer becomes invalid.

I couldn't see any cleaner way to make a valid RenderViewHost for this code.

I added a comment to the pointer definition explaining this choice.

+}
+
+PasswordAutofillManager::~PasswordAutofillManager() {
+}
+
+bool PasswordAutofillManager::DidAcceptAutofillSuggestion(
+    const webkit::forms::FormField& field,
+    const string16& value) {
+  webkit::forms::FormField input;
+  webkit::forms::PasswordFormFillData password;
+  if (!FindLoginInfo(field, &input, &password))
+    return false;
+
+  if (WillFillUserNameAndPassword(value, password)) {
+    if (web_contents_) {
+      content::RenderViewHost* render_view_host =
+          web_contents_->GetRenderViewHost();
+      render_view_host->Send(new AutofillMsg_AcceptPasswordAutofillSuggestion(
+          render_view_host->GetRoutingID(),
+          value));
+    }
+    return true;
+  }
+
+  return false;
+}
+
+bool PasswordAutofillManager::DidSelectAutofillSuggestion(
+    const webkit::forms::FormField& field) {
+  webkit::forms::FormField input;
+  webkit::forms::PasswordFormFillData password;
+  return FindLoginInfo(field, &input, &password);
+}
+
+bool PasswordAutofillManager::DidClearAutofillSelection(
+    const webkit::forms::FormField& field) {
+  webkit::forms::FormField input;
+  webkit::forms::PasswordFormFillData password;
+  return FindLoginInfo(field, &input, &password);
+}
+
+void PasswordAutofillManager::AddPasswordFormMapping(
+    const webkit::forms::FormField& username_element,
+    const webkit::forms::PasswordFormFillData& password) {
+  login_to_password_info_[username_element] = password;
+}
+
+void PasswordAutofillManager::Reset() {
+  login_to_password_info_.clear();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// PasswordAutofillManager, private:
+
+bool PasswordAutofillManager::WillFillUserNameAndPassword(
+    const string16& current_username,
+    const webkit::forms::PasswordFormFillData& fill_data) {
+

[Ilya Sherman, 2012/04/02 22:07:29]

nit: No need for this blank line (line 73)

[csharp, 2012/04/03 12:25:55]

Done.

+  // 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,
+    webkit::forms::PasswordFormFillData* found_password) {
+  LoginToPasswordInfoMap::iterator iter = login_to_password_info_.find(field);
+  if (iter == login_to_password_info_.end())
+    return false;
+
+  *found_input = field;

[Ilya Sherman, 2012/04/02 22:07:29]

nit: It looks like the caller always knows the value that will get written into
|found_input| ahead of time.  If I'm not misreading anything, I'd recommend just
removing this parameter, since it seems to be redundant information.

[csharp, 2012/04/03 12:25:55]

Done.

+  *found_password = iter->second;
+  return true;
+}