Add support for autofilling radio buttons and checkboxes.

chrome/browser/autofill/form_structure.cc

 // 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/form_structure.h"
 
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
@@ skipping 217 matching lines @@
       target_url_(form.action),
       autofill_count_(0),
       upload_required_(USE_UPLOAD_RATES),
       server_experiment_id_("no server response"),
       has_author_specified_types_(false) {
   // Copy the form fields.
   std::map<string16, size_t> unique_names;
   for (std::vector<FormFieldData>::const_iterator field =
            form.fields.begin();
        field != form.fields.end(); field++) {
-    // Add all supported form fields (including with empty names) to the
-    // signature.  This is a requirement for Autofill servers.
-    form_signature_field_names_.append("&");
-    form_signature_field_names_.append(UTF16ToUTF8(field->name));
+    // Skipping checkable elements when flag is not set, else these fields will
+    // interfere with existing field signatures with Autofill servers.
+    // TODO(ramankk): Add checkable elements only on whitelisted pages
+    if (!field->is_checkable ||
+        CommandLine::ForCurrentProcess()->HasSwitch(
+            switches::kEnableExperimentalFormFilling)) {
+      // Add all supported form fields (including with empty names) to the
+      // signature.  This is a requirement for Autofill servers.
+      form_signature_field_names_.append("&");
+      form_signature_field_names_.append(UTF16ToUTF8(field->name));
+    }
 
     // Generate a unique name for this field by appending a counter to the name.
     // Make sure to prepend the counter with a non-numeric digit so that we are
     // guaranteed to avoid collisions.
     if (!unique_names.count(field->name))
       unique_names[field->name] = 1;
     else
       ++unique_names[field->name];
     string16 unique_name = field->name + ASCIIToUTF16("_") +
         base::IntToString16(unique_names[field->name]);
@@ skipping 147 matching lines @@
   return true;
 }
 
 // static
 void FormStructure::ParseQueryResponse(const std::string& response_xml,
                                        const std::vector<FormStructure*>& forms,
                                        const AutofillMetrics& metric_logger) {
   metric_logger.LogServerQueryMetric(AutofillMetrics::QUERY_RESPONSE_RECEIVED);
 
   // Parse the field types from the server response to the query.
-  std::vector<AutofillFieldType> field_types;
+  std::vector<AutofillServerFieldInfo> field_infos;
   UploadRequired upload_required;
   std::string experiment_id;
-  AutofillQueryXmlParser parse_handler(&field_types, &upload_required,
+  AutofillQueryXmlParser parse_handler(&field_infos, &upload_required,
                                        &experiment_id);
   buzz::XmlParser parser(&parse_handler);
   parser.Parse(response_xml.c_str(), response_xml.length(), true);
   if (!parse_handler.succeeded())
     return;
 
   metric_logger.LogServerQueryMetric(AutofillMetrics::QUERY_RESPONSE_PARSED);
   metric_logger.LogServerExperimentIdForQuery(experiment_id);
 
   bool heuristics_detected_fillable_field = false;
   bool query_response_overrode_heuristics = false;
 
   // Copy the field types into the actual form.
-  std::vector<AutofillFieldType>::iterator current_type = field_types.begin();
+  std::vector<AutofillServerFieldInfo>::iterator current_info =
+      field_infos.begin();
   for (std::vector<FormStructure*>::const_iterator iter = forms.begin();
        iter != forms.end(); ++iter) {
     FormStructure* form = *iter;
     form->upload_required_ = upload_required;
     form->server_experiment_id_ = experiment_id;
 
     for (std::vector<AutofillField*>::iterator field = form->fields_.begin();
-         field != form->fields_.end(); ++field, ++current_type) {
+         field != form->fields_.end(); ++field, ++current_info) {
       // In some cases *successful* response does not return all the fields.
       // Quit the update of the types then.
-      if (current_type == field_types.end())
+      if (current_info == field_infos.end())
         break;
 
       // UNKNOWN_TYPE is reserved for use by the client.
-      DCHECK_NE(*current_type, UNKNOWN_TYPE);
+      DCHECK_NE(current_info->field_type, UNKNOWN_TYPE);
 
       AutofillFieldType heuristic_type = (*field)->type();
       if (heuristic_type != UNKNOWN_TYPE)
         heuristics_detected_fillable_field = true;
 
-      (*field)->set_server_type(*current_type);
+      (*field)->set_server_type(current_info->field_type);
       if (heuristic_type != (*field)->type())
         query_response_overrode_heuristics = true;
+
+      // Copy default value into the field if available.
+      if (!current_info->default_value.empty())
+        (*field)->set_default_value(current_info->default_value);
     }
 
     form->UpdateAutofillCount();
     form->IdentifySections(false);
   }
 
   AutofillMetrics::ServerQueryMetric metric;
   if (query_response_overrode_heuristics) {
     if (heuristics_detected_fillable_field) {
       metric = AutofillMetrics::QUERY_RESPONSE_OVERRODE_LOCAL_HEURISTICS;
@@ skipping 106 matching lines @@
        it != end() && !has_text_field; ++it) {
     has_text_field |= (*it)->form_control_type != "select-one";
   }
   if (!has_text_field)
     return false;
 
   return !require_method_post || (method_ == POST);
 }
 
 bool FormStructure::ShouldBeCrowdsourced() const {
   return !has_author_specified_types_ && ShouldBeParsed(true);

[Ilya Sherman, 2012/12/15 01:08:36]

The test expectations changes made me realize that you haven't updated this code
path, which only queries the server for forms with 3 (a.k.a.
kRequiredFillableFields) or more fields.  Please update the ShouldBeParsed()
code so that checkboxes and radio buttons do not count toward that threshold.

[Raman Kakilate, 2012/12/17 20:11:01]

Thanks for catching this.
Done.

 }
 
 void FormStructure::UpdateFromCache(const FormStructure& cached_form) {
   // Map from field signatures to cached fields.
   std::map<std::string, const AutofillField*> cached_fields;
   for (size_t i = 0; i < cached_form.field_count(); ++i) {
     const AutofillField* field = cached_form.field(i);
     cached_fields[field->FieldSignature()] = field;
   }
 
@@ skipping 290 matching lines @@
   // Do not send requests for forms with more than this many fields, as they are
   // near certainly not valid/auto-fillable.
   const size_t kMaxFieldsOnTheForm = 48;
   if (field_count() > kMaxFieldsOnTheForm)
     return false;
 
   // Add the child nodes for the form fields.
   for (size_t index = 0; index < field_count(); ++index) {
     const AutofillField* field = fields_[index];
     if (request_type == FormStructure::UPLOAD) {
+      // Don't upload checkable fields.
+      if (field->is_checkable)
+        continue;
+
       FieldTypeSet types = field->possible_types();
       // |types| could be empty in unit-tests only.
       for (FieldTypeSet::iterator field_type = types.begin();
            field_type != types.end(); ++field_type) {
         buzz::XmlElement *field_element = new buzz::XmlElement(
             buzz::QName(kXMLElementField));
 
         field_element->SetAttr(buzz::QName(kAttributeSignature),
                                field->FieldSignature());
         field_element->SetAttr(buzz::QName(kAttributeAutofillType),
                                base::IntToString(*field_type));
         encompassing_xml_element->AddElement(field_element);
       }
     } else {
+      // Skip putting checkable fields in the request if the flag is not set.
+      if (field->is_checkable &&
+          !CommandLine::ForCurrentProcess()->HasSwitch(
+              switches::kEnableExperimentalFormFilling))
+        continue;
+
       buzz::XmlElement *field_element = new buzz::XmlElement(
           buzz::QName(kXMLElementField));
       field_element->SetAttr(buzz::QName(kAttributeSignature),
                              field->FieldSignature());
       encompassing_xml_element->AddElement(field_element);
     }
   }
   return true;
 }
 
@@ skipping 160 matching lines @@
   for (std::vector<AutofillField*>::iterator field = fields_.begin();
        field != fields_.end(); ++field) {
     AutofillType::FieldTypeGroup field_type_group =
         AutofillType((*field)->type()).group();
     if (field_type_group == AutofillType::CREDIT_CARD)
       (*field)->set_section((*field)->section() + "-cc");
     else
       (*field)->set_section((*field)->section() + "-default");
   }
 }