Re-land: Create AXAction and AXActionData as a way to simplify accessibility actions

ui/accessibility/ax_action_data.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 "ui/accessibility/ax_action_data.h"
+
+#include <set>
+
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/string_util.h"
+#include "base/strings/stringprintf.h"
+#include "base/strings/utf_string_conversions.h"
+
+using base::IntToString;
+
+namespace ui {
+
+AXActionData::AXActionData()
+    : action(AX_ACTION_NONE),
+      target_node_id(-1),
+      flags(0),
+      anchor_node_id(-1),
+      anchor_offset(-1),
+      focus_node_id(-1),
+      focus_offset(-1) {
+}
+
+AXActionData::AXActionData(const AXActionData& other) = default;
+
+AXActionData::~AXActionData() {
+}
+
+// Note that this includes an initial space character if nonempty, but
+// that works fine because this is normally printed by AXAction::ToString.
+std::string AXActionData::ToString() const {
+  std::string result = ui::ToString(action);
+
+  if (target_node_id != -1)
+    result += " target_node_id=" + IntToString(target_node_id);
+
+  if (flags & (1 << ui::AX_ACTION_FLAGS_REQUEST_IMAGES))
+    result += " flag_request_images";
+
+  if (flags & (1 << ui::AX_ACTION_FLAGS_REQUEST_INLINE_TEXT_BOXES))
+    result += " flag_request_inline_text_boxes";
+
+  if (flags & (1 << ui::AX_ACTION_FLAGS_SET_SEQUENTIAL_FOCUS_NAVIGATION_POINT))
+    result += " flag_set_sequential_focus_navigation_point";
+
+  if (anchor_node_id != -1) {
+    result += " anchor_node_id=" + IntToString(anchor_node_id);
+    result += " anchor_offset=" + IntToString(anchor_offset);
+  }
+  if (focus_node_id != -1) {
+    result += " focus_node_id=" + IntToString(focus_node_id);
+    result += " focus_offset=" + IntToString(focus_offset);
+  }
+
+  return result;
+}
+
+}  // namespace ui