Add password manager autocomplete suggestion when a username element in clicked.

components/autofill/content/renderer/autofill_agent.cc

 // Copyright 2013 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 "components/autofill/content/renderer/autofill_agent.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_split.h"
@@ skipping 271 matching lines @@
   Send(new AutofillHostMsg_RequestAutocomplete(routing_id(), form_data, url));
 }
 
 void AutofillAgent::setIgnoreTextChanges(bool ignore) {
   ignore_text_changes_ = ignore;
 }
 
 void AutofillAgent::InputElementClicked(const WebInputElement& element,
                                         bool was_focused,
                                         bool is_focused) {
-  if (was_focused)
-    ShowSuggestions(element, true, false, true, false);
+  bool show_full_suggestion_list = element.isAutofilled();
+  bool show_password_suggestions_only = !was_focused;
+  ShowSuggestions(element,
+                  true,
+                  false,
+                  true,
+                  false,
+                  show_full_suggestion_list,
+                  show_password_suggestions_only);
 }
 
 void AutofillAgent::InputElementLostFocus() {
   HideAutofillUI();
 }
 
 void AutofillAgent::textFieldDidEndEditing(const WebInputElement& element) {
   password_autofill_agent_->TextFieldDidEndEditing(element);
   has_shown_autofill_popup_for_current_edit_ = false;
   Send(new AutofillHostMsg_DidEndTextFieldEditing(routing_id()));
@@ skipping 28 matching lines @@
   if (password_generation_agent_ &&
       password_generation_agent_->TextDidChangeInTextField(element)) {
     return;
   }
 
   if (password_autofill_agent_->TextDidChangeInTextField(element)) {
     element_ = element;
     return;
   }
 
-  ShowSuggestions(element, false, true, false, false);
+  ShowSuggestions(element, false, true, false, false, false, false);
 
   FormData form;
   FormFieldData field;
   if (FindFormAndFieldForInputElement(element, &form, &field, REQUIRE_NONE)) {
     Send(new AutofillHostMsg_TextFieldDidChange(routing_id(), form, field,
                                                 base::TimeTicks::Now()));
   }
 }
 
 void AutofillAgent::textFieldDidReceiveKeyDown(const WebInputElement& element,
                                                const WebKeyboardEvent& event) {
   if (password_autofill_agent_->TextFieldHandlingKeyDown(element, event)) {
     element_ = element;
     return;
   }
 
   if (event.windowsKeyCode == ui::VKEY_DOWN ||
       event.windowsKeyCode == ui::VKEY_UP)
-    ShowSuggestions(element, true, true, true, false);
+    ShowSuggestions(element, true, true, true, false, false, false);
 }
 
 void AutofillAgent::openTextDataListChooser(const WebInputElement& element) {
-    ShowSuggestions(element, true, false, false, true);
+  ShowSuggestions(element, true, false, false, true, false, false);
 }
 
 void AutofillAgent::AcceptDataListSuggestion(
     const base::string16& suggested_value) {
   base::string16 new_value = suggested_value;
   // If this element takes multiple values then replace the last part with
   // the suggestion.
   if (element_.isMultiple() &&
       element_.formControlType() == WebString::fromUTF8("email")) {
     std::vector<base::string16> parts;
@@ skipping 110 matching lines @@
   in_flight_request_form_.reset();
 }
 
 void AutofillAgent::OnPageShown() {
 }
 
 void AutofillAgent::ShowSuggestions(const WebInputElement& element,
                                     bool autofill_on_empty_values,
                                     bool requires_caret_at_end,
                                     bool display_warning_if_disabled,
-                                    bool datalist_only) {
+                                    bool datalist_only,
+                                    bool show_full_suggestion_list,
+                                    bool show_password_suggestions_only) {
   if (!element.isEnabled() || element.isReadOnly() || !element.isTextField() ||
       element.isPasswordField())
     return;
   if (!datalist_only && !element.suggestedValue().isEmpty())
     return;
 
   // Don't attempt to autofill with values that are too large or if filling
   // criteria are not met.
   WebString value = element.editingValue();
   if (!datalist_only &&
       (value.length() > kMaxDataLength ||
        (!autofill_on_empty_values && value.isEmpty()) ||
        (requires_caret_at_end &&
         (element.selectionStart() != element.selectionEnd() ||
          element.selectionEnd() != static_cast<int>(value.length()))))) {
     // Any popup currently showing is obsolete.
     HideAutofillUI();
     return;
   }
 
   element_ = element;
-  if (password_autofill_agent_->ShowSuggestions(element))
+  if (password_autofill_agent_->ShowSuggestions(element,
+                                                show_full_suggestion_list) ||
+      show_password_suggestions_only)
     return;
 
   // If autocomplete is disabled at the field level, ensure that the native
   // UI won't try to show a warning, since that may conflict with a custom
   // popup. Note that we cannot use the WebKit method element.autoComplete()
   // as it does not allow us to distinguish the case where autocomplete is
   // disabled for *both* the element and for the form.
   const base::string16 autocomplete_attribute =
       element.getAttribute("autocomplete");
   if (LowerCaseEqualsASCII(autocomplete_attribute, "off"))
@@ skipping 101 matching lines @@
     // Only monitors dynamic forms created in the top frame. Dynamic forms
     // inserted in iframes are not captured yet.
     if (!frame->parent()) {
       password_autofill_agent_->OnDynamicFormsSeen(frame);
       return;
     }
   }
 }
 
 }  // namespace autofill