Implement accessibility support for CSS-transformed iframes.

ui/accessibility/ax_node_data.cc

 // Copyright 2013 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_node_data.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #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"
+#include "ui/gfx/transform.h"
 
 using base::DoubleToString;
 using base::IntToString;
 
 namespace ui {
 
 namespace {
 
 std::string IntVectorToString(const std::vector<int>& items) {
   std::string str;
@@ skipping 36 matching lines @@
       state(0xFFFFFFFF) {
 }
 
 AXNodeData::~AXNodeData() {
 }
 
 AXNodeData::AXNodeData(const AXNodeData& other) {
   id = other.id;
   role = other.role;
   state = other.state;
-  location = other.location;
   string_attributes = other.string_attributes;
   int_attributes = other.int_attributes;
   float_attributes = other.float_attributes;
   bool_attributes = other.bool_attributes;
   intlist_attributes = other.intlist_attributes;
   html_attributes = other.html_attributes;
   child_ids = other.child_ids;
+  location = other.location;
+  if (other.transform)
+    transform.reset(new gfx::Transform(*other.transform));
 }
 
 AXNodeData& AXNodeData::operator=(AXNodeData other) {
   id = other.id;
   role = other.role;
   state = other.state;
-  location = other.location;
   string_attributes = other.string_attributes;
   int_attributes = other.int_attributes;
   float_attributes = other.float_attributes;
   bool_attributes = other.bool_attributes;
   intlist_attributes = other.intlist_attributes;
   html_attributes = other.html_attributes;
   child_ids = other.child_ids;
+  location = other.location;
+  if (other.transform)
+    transform.reset(new gfx::Transform(*other.transform));
   return *this;
 }
 
 bool AXNodeData::HasBoolAttribute(AXBoolAttribute attribute) const {
   auto iter = FindInVectorOfPairs(attribute, bool_attributes);
   return iter != bool_attributes.end();
 }
 
 bool AXNodeData::GetBoolAttribute(AXBoolAttribute attribute) const {
   bool result;
@@ skipping 227 matching lines @@
   if (state & (1 << AX_STATE_VERTICAL))
     result += " VERTICAL";
   if (state & (1 << AX_STATE_VISITED))
     result += " VISITED";
 
   result += " (" + IntToString(location.x()) + ", " +
                    IntToString(location.y()) + ")-(" +
                    IntToString(location.width()) + ", " +
                    IntToString(location.height()) + ")";
 
+  if (transform && !transform->IsIdentity())
+    result += " transform=" + transform->ToString();
+
   for (size_t i = 0; i < int_attributes.size(); ++i) {
     std::string value = IntToString(int_attributes[i].second);
     switch (int_attributes[i].first) {
       case AX_ATTR_SCROLL_X:
         result += " scroll_x=" + value;
         break;
       case AX_ATTR_SCROLL_X_MIN:
         result += " scroll_x_min=" + value;
         break;
       case AX_ATTR_SCROLL_X_MAX:
@@ skipping 323 matching lines @@
 bool AXNodeData::IsRoot() const {
   return (role == AX_ROLE_ROOT_WEB_AREA ||
           role == AX_ROLE_DESKTOP);
 }
 
 void AXNodeData::SetRoot() {
   role = AX_ROLE_ROOT_WEB_AREA;
 }
 
 }  // namespace ui