Add verbose logging for native accessibility events.

content/browser/accessibility/browser_accessibility_event_win.cc

+// Copyright 2016 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 "content/browser/accessibility/browser_accessibility_event_win.h"
+
+#include "base/strings/utf_string_conversions.h"
+#include "content/browser/accessibility/accessibility_tree_formatter_utils_win.h"
+#include "content/browser/accessibility/browser_accessibility.h"
+#include "content/browser/accessibility/browser_accessibility_manager_win.h"
+
+namespace content {
+
+// static
+BrowserAccessibilityEvent* BrowserAccessibilityEvent::Create(
+    Source source,
+    ui::AXEvent event_type,
+    const BrowserAccessibility* target) {
+  LONG win_event_type = EVENT_MIN;
+  switch (event_type) {
+    case ui::AX_EVENT_ACTIVEDESCENDANTCHANGED:
+      win_event_type = IA2_EVENT_ACTIVE_DESCENDANT_CHANGED;
+      break;
+    case ui::AX_EVENT_ALERT:
+      win_event_type = EVENT_SYSTEM_ALERT;
+      break;
+    case ui::AX_EVENT_AUTOCORRECTION_OCCURED:
+      win_event_type = IA2_EVENT_OBJECT_ATTRIBUTE_CHANGED;
+      break;
+    case ui::AX_EVENT_CHILDREN_CHANGED:
+      win_event_type = EVENT_OBJECT_REORDER;
+      break;
+    case ui::AX_EVENT_FOCUS:
+      win_event_type = EVENT_OBJECT_FOCUS;
+      break;
+    case ui::AX_EVENT_LIVE_REGION_CHANGED:
+      win_event_type = EVENT_OBJECT_LIVEREGIONCHANGED;
+      break;
+    case ui::AX_EVENT_LOAD_COMPLETE:
+      win_event_type = IA2_EVENT_DOCUMENT_LOAD_COMPLETE;
+      break;
+    case ui::AX_EVENT_SCROLL_POSITION_CHANGED:
+      win_event_type = EVENT_SYSTEM_SCROLLINGEND;
+      break;
+    case ui::AX_EVENT_SCROLLED_TO_ANCHOR:
+      win_event_type = EVENT_SYSTEM_SCROLLINGSTART;
+      break;
+    case ui::AX_EVENT_SELECTED_CHILDREN_CHANGED:
+      win_event_type = EVENT_OBJECT_SELECTIONWITHIN;
+      break;
+    default:
+      break;
+  }
+
+  return new BrowserAccessibilityEventWin(
+      source,
+      event_type,
+      win_event_type,
+      target);
+}
+
+BrowserAccessibilityEventWin::BrowserAccessibilityEventWin(
+    Source source,
+    ui::AXEvent event_type,
+    LONG win_event_type,
+    const BrowserAccessibility* target)
+    : BrowserAccessibilityEvent(source, event_type, target),
+      win_event_type_(win_event_type) {
+}
+
+BrowserAccessibilityEventWin::~BrowserAccessibilityEventWin() {
+}
+
+BrowserAccessibilityEvent::Result BrowserAccessibilityEventWin::Fire() {
+  DCHECK(target()->manager());
+
+  if (win_event_type_ == EVENT_MIN) {
+    delete this;
+    return NotNeededOnThisPlatform;
+  }
+
+  Result result = target()->manager()->ToBrowserAccessibilityManagerWin()
+      ->FireWinAccessibilityEvent(this);
+
+  if (VLOG_IS_ON(1))
+    VerboseLog(result);
+
+  delete this;
+  return result;
+}
+
+std::string BrowserAccessibilityEventWin::GetEventNameStr() {
+  std::string result = base::UTF16ToUTF8(AccessibilityEventToString(
+      win_event_type_));
+  if (event_type() != ui::AX_EVENT_NONE)
+    result += "/" + ui::ToString(event_type());
+  return result;
+}
+
+}  // namespace content