Send a11y events from NativeTextfieldViews when the state changes.

ui/views/controls/textfield/native_textfield_views.cc

 // Copyright (c) 2011 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 "ui/views/controls/textfield/native_textfield_views.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 305 matching lines @@
 // NativeTextfieldViews, NativeTextifieldWrapper overrides:
 
 string16 NativeTextfieldViews::GetText() const {
   return model_->GetText();
 }
 
 void NativeTextfieldViews::UpdateText() {
   model_->SetText(textfield_->text());
   OnCaretBoundsChanged();
   SchedulePaint();
+  textfield_->GetWidget()->NotifyAccessibilityEvent(
+      textfield_, ui::AccessibilityTypes::EVENT_TEXT_CHANGED, true);
 }
 
 void NativeTextfieldViews::AppendText(const string16& text) {
   if (text.empty())
     return;
   model_->Append(text);
   OnCaretBoundsChanged();
   SchedulePaint();
 }
 
@@ skipping 115 matching lines @@
 }
 
 void NativeTextfieldViews::GetSelectedRange(ui::Range* range) const {
   model_->GetSelectedRange(range);
 }
 
 void NativeTextfieldViews::SelectRange(const ui::Range& range) {
   model_->SelectRange(range);
   OnCaretBoundsChanged();
   SchedulePaint();
+  textfield_->GetWidget()->NotifyAccessibilityEvent(
+      textfield_, ui::AccessibilityTypes::EVENT_SELECTION_CHANGED, true);
 }
 
 void NativeTextfieldViews::GetSelectionModel(gfx::SelectionModel* sel) const {
   model_->GetSelectionModel(sel);
 }
 
 void NativeTextfieldViews::SelectSelectionModel(
     const gfx::SelectionModel& sel) {
   model_->SelectSelectionModel(sel);
   OnCaretBoundsChanged();
@@ skipping 459 matching lines @@
   OnCaretBoundsChanged();
   return true;
 }
 
 void NativeTextfieldViews::PropagateTextChange() {
   textfield_->SyncText();
 }
 
 void NativeTextfieldViews::UpdateAfterChange(bool text_changed,
                                              bool cursor_changed) {
-  if (text_changed)
+  if (text_changed) {
     PropagateTextChange();
+    textfield_->GetWidget()->NotifyAccessibilityEvent(
+        textfield_, ui::AccessibilityTypes::EVENT_TEXT_CHANGED, true);
+  }
   if (cursor_changed) {
     is_cursor_visible_ = true;
     RepaintCursor();
+    if (!text_changed) {
+      // TEXT_CHANGED implies SELECTION_CHANGED, so we only need to fire
+      // this if only the selection changed.
+      textfield_->GetWidget()->NotifyAccessibilityEvent(
+          textfield_, ui::AccessibilityTypes::EVENT_SELECTION_CHANGED, true);
+    }
   }
   if (text_changed || cursor_changed) {
     OnCaretBoundsChanged();
     SchedulePaint();
   }
 }
 
 void NativeTextfieldViews::UpdateContextMenu() {
   if (!context_menu_contents_.get()) {
     context_menu_contents_.reset(new ui::SimpleMenuModel(this));
@@ skipping 121 matching lines @@
 
 #if defined(USE_AURA)
 // static
 NativeTextfieldWrapper* NativeTextfieldWrapper::CreateWrapper(
     Textfield* field) {
   return new NativeTextfieldViews(field);
 }
 #endif
 
 }  // namespace views