Uses child views in Autofill Popup so we can trigger

chrome/browser/ui/autofill/autofill_popup_controller_impl.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/ui/autofill/autofill_popup_controller_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/autofill/autofill_popup_view.h"
 #include "components/autofill/core/browser/autofill_popup_delegate.h"
 #include "components/autofill/core/browser/popup_item_ids.h"
 #include "components/autofill/core/browser/suggestion.h"
 #include "content/public/browser/native_web_keyboard_event.h"
+#include "ui/accessibility/ax_enums.h"
 #include "ui/events/event.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/text_elider.h"
 #include "ui/gfx/text_utils.h"
 
 using base::WeakPtr;
 
 namespace autofill {
 namespace {
 
@@ skipping 364 matching lines @@
   if (selected_line_ == selected_line)
     return;
 
   if (selected_line_ != kNoSelection &&
       static_cast<size_t>(selected_line_) < suggestions_.size())
     InvalidateRow(selected_line_);
 
   if (selected_line != kNoSelection) {
     InvalidateRow(selected_line);
 
-    if (!CanAccept(suggestions_[selected_line].frontend_id))
+    if (CanAccept(suggestions_[selected_line].frontend_id))
+      NotifyAccessibilityEventForRow(ui::AX_EVENT_SELECTION, selected_line);
+    else
       selected_line = kNoSelection;
   }
 
   selected_line_ = selected_line;
 
   if (selected_line_ != kNoSelection) {
     delegate_->DidSelectSuggestion(suggestions_[selected_line_].value,
                                    suggestions_[selected_line_].frontend_id);
   } else {
     delegate_->ClearPreviewedForm();
@@ skipping 65 matching lines @@
     elided_values_[i] = suggestions[i].value;
     elided_labels_[i] = suggestions[i].label;
   }
 }
 
 void AutofillPopupControllerImpl::ShowView() {
   view_->Show();
 }
 
 void AutofillPopupControllerImpl::InvalidateRow(size_t row) {
-  DCHECK(0 <= row);
-  DCHECK(row < suggestions_.size());
+  DCHECK_GE(row, static_cast<size_t>(0));
+  DCHECK_LT(row, suggestions_.size());
   view_->InvalidateRow(row);
 }
 
+void AutofillPopupControllerImpl::NotifyAccessibilityEventForRow(
+    ui::AXEvent event_type,
+    size_t row) {
+  CHECK_GE(row, static_cast<size_t>(0));
+  CHECK_LT(row, suggestions_.size());
+  view_->NotifyAccessibilityEventForRow(event_type, row);
+}
+
 WeakPtr<AutofillPopupControllerImpl> AutofillPopupControllerImpl::GetWeakPtr() {
   return weak_ptr_factory_.GetWeakPtr();
 }
 
 #if !defined(OS_ANDROID)
 void AutofillPopupControllerImpl::ElideValueAndLabelForRow(
     size_t row,
     int available_width) {
   int value_width = gfx::GetStringWidth(
       suggestions_[row].value, layout_model_.GetValueFontListForRow(row));
@@ skipping 23 matching lines @@
   // Don't clear view_, because otherwise the popup will have to get regenerated
   // and this will cause flickering.
   suggestions_.clear();
   elided_values_.clear();
   elided_labels_.clear();
 
   selected_line_ = kNoSelection;
 }
 
 }  // namespace autofill