Revert 135020 - Add initial GTK web accessibility framework.

content/browser/accessibility/browser_accessibility_gtk.cc

Index: content/browser/accessibility/browser_accessibility_gtk.cc
===================================================================
--- content/browser/accessibility/browser_accessibility_gtk.cc	(revision 135026)
+++ content/browser/accessibility/browser_accessibility_gtk.cc	(working copy)
@@ -1,343 +0,0 @@
-// 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 "content/browser/accessibility/browser_accessibility_gtk.h"
-
-#include "base/utf_string_conversions.h"
-#include "content/browser/accessibility/browser_accessibility_manager_gtk.h"
-#include "content/common/accessibility_messages.h"
-
-#include <gtk/gtk.h>
-
-using webkit_glue::WebAccessibility;
-
-// The maximum length of an autogenerated unique type name string,
-// generated from the 16-bit interface mask from an AtkObject.
-// 30 is enough for the prefix "WAIType" + 5 hex chars (max) */
-static const int kWAITypeNameLen = 30;
-
-static gpointer browser_accessibility_parent_class = NULL;
-
-static BrowserAccessibilityGtk* ToBrowserAccessibilityGtk(
-    BrowserAccessibilityAtk* atk_object) {
-  if (!atk_object)
-    return NULL;
-
-  return atk_object->m_object;
-}
-
-static BrowserAccessibilityGtk* ToBrowserAccessibilityGtk(
-    AtkObject* atk_object) {
-  if (!IS_BROWSER_ACCESSIBILITY(atk_object))
-    return NULL;
-
-  return ToBrowserAccessibilityGtk(BROWSER_ACCESSIBILITY(atk_object));
-}
-
-static const gchar* browser_accessibility_get_name(AtkObject* atk_object) {
-  BrowserAccessibilityGtk* obj = ToBrowserAccessibilityGtk(atk_object);
-  return obj->atk_acc_name().c_str();
-}
-
-static const gchar* browser_accessibility_get_description(
-    AtkObject* atk_object) {
-  BrowserAccessibilityGtk* obj = ToBrowserAccessibilityGtk(atk_object);
-  string16 description;
-  obj->GetStringAttribute(WebAccessibility::ATTR_DESCRIPTION, &description);
-  return UTF16ToUTF8(description).c_str();
-}
-
-static AtkObject* browser_accessibility_get_parent(AtkObject* atk_object) {
-  BrowserAccessibilityGtk* obj = ToBrowserAccessibilityGtk(atk_object);
-  if (obj->parent())
-    return obj->parent()->ToBrowserAccessibilityGtk()->GetAtkObject();
-  else
-    return gtk_widget_get_accessible(obj->manager()->GetParentView());
-}
-
-static gint browser_accessibility_get_n_children(AtkObject* atk_object) {
-  BrowserAccessibilityGtk* obj = ToBrowserAccessibilityGtk(atk_object);
-  return obj->children().size();
-}
-
-static AtkObject* browser_accessibility_ref_child(
-    AtkObject* atk_object, gint index) {
-  BrowserAccessibilityGtk* obj = ToBrowserAccessibilityGtk(atk_object);
-  AtkObject* result =
-      obj->children()[index]->ToBrowserAccessibilityGtk()->GetAtkObject();
-  g_object_ref(result);
-  return result;
-}
-
-static gint browser_accessibility_get_index_in_parent(AtkObject* atk_object) {
-  BrowserAccessibilityGtk* obj = ToBrowserAccessibilityGtk(atk_object);
-  return obj->index_in_parent();
-}
-
-static AtkAttributeSet* browser_accessibility_get_attributes(
-    AtkObject* atk_object) {
-  return NULL;
-}
-
-static AtkRole browser_accessibility_get_role(AtkObject* atk_object) {
-  BrowserAccessibilityGtk* obj = ToBrowserAccessibilityGtk(atk_object);
-  return obj->atk_role();
-}
-
-static AtkStateSet* browser_accessibility_ref_state_set(AtkObject* atk_object) {
-  BrowserAccessibilityGtk* obj = ToBrowserAccessibilityGtk(atk_object);
-  AtkStateSet* state_set =
-      ATK_OBJECT_CLASS(browser_accessibility_parent_class)->
-          ref_state_set(atk_object);
-  int32 state = obj->state();
-
-  if ((state >> WebAccessibility::STATE_FOCUSABLE) & 1)
-    atk_state_set_add_state(state_set, ATK_STATE_FOCUSABLE);
-  if (obj->manager()->GetFocus(NULL) == obj)
-    atk_state_set_add_state(state_set, ATK_STATE_FOCUSED);
-
-  return state_set;
-}
-
-static AtkRelationSet* browser_accessibility_ref_relation_set(
-    AtkObject* atk_object) {
-  AtkRelationSet* relation_set =
-      ATK_OBJECT_CLASS(browser_accessibility_parent_class)
-          ->ref_relation_set(atk_object);
-  return relation_set;
-}
-
-static void browser_accessibility_init(AtkObject* atk_object, gpointer data) {
-  if (ATK_OBJECT_CLASS(browser_accessibility_parent_class)->initialize) {
-    ATK_OBJECT_CLASS(browser_accessibility_parent_class)->initialize(
-        atk_object, data);
-  }
-
-  BROWSER_ACCESSIBILITY(atk_object)->m_object =
-      reinterpret_cast<BrowserAccessibilityGtk*>(data);
-}
-
-static void browser_accessibility_finalize(GObject* atk_object) {
-  G_OBJECT_CLASS(browser_accessibility_parent_class)->finalize(atk_object);
-}
-
-static void browser_accessibility_class_init(AtkObjectClass* klass) {
-  GObjectClass* gobject_class = G_OBJECT_CLASS(klass);
-  browser_accessibility_parent_class = g_type_class_peek_parent(klass);
-
-  gobject_class->finalize = browser_accessibility_finalize;
-  klass->initialize = browser_accessibility_init;
-  klass->get_name = browser_accessibility_get_name;
-  klass->get_description = browser_accessibility_get_description;
-  klass->get_parent = browser_accessibility_get_parent;
-  klass->get_n_children = browser_accessibility_get_n_children;
-  klass->ref_child = browser_accessibility_ref_child;
-  klass->get_role = browser_accessibility_get_role;
-  klass->ref_state_set = browser_accessibility_ref_state_set;
-  klass->get_index_in_parent = browser_accessibility_get_index_in_parent;
-  klass->get_attributes = browser_accessibility_get_attributes;
-  klass->ref_relation_set = browser_accessibility_ref_relation_set;
-}
-
-GType browser_accessibility_get_type() {
-  static volatile gsize type_volatile = 0;
-
-  if (g_once_init_enter(&type_volatile)) {
-    static const GTypeInfo tinfo = {
-      sizeof(BrowserAccessibilityAtkClass),
-      (GBaseInitFunc) 0,
-      (GBaseFinalizeFunc) 0,
-      (GClassInitFunc) browser_accessibility_class_init,
-      (GClassFinalizeFunc) 0,
-      0, /* class data */
-      sizeof(BrowserAccessibilityAtk), /* instance size */
-      0, /* nb preallocs */
-      (GInstanceInitFunc) 0,
-      0 /* value table */
-    };
-
-    GType type = g_type_register_static(
-        ATK_TYPE_OBJECT, "BrowserAccessibility", &tinfo, GTypeFlags(0));
-    g_once_init_leave(&type_volatile, type);
-  }
-
-  return type_volatile;
-}
-
-static guint16 GetInterfaceMaskFromObject(BrowserAccessibilityGtk* obj) {
-  return 0;
-}
-
-static const char* GetUniqueAccessibilityTypeName(guint16 interface_mask)
-{
-  static char name[kWAITypeNameLen + 1];
-
-  sprintf(name, "WAIType%x", interface_mask);
-  name[kWAITypeNameLen] = '\0';
-
-  return name;
-}
-
-static const GInterfaceInfo AtkInterfacesInitFunctions[] = {
-};
-
-enum WAIType {
-  WAI_ACTION,
-  WAI_SELECTION,
-  WAI_EDITABLE_TEXT,
-  WAI_TEXT,
-  WAI_COMPONENT,
-  WAI_IMAGE,
-  WAI_TABLE,
-  WAI_HYPERTEXT,
-  WAI_HYPERLINK,
-  WAI_DOCUMENT,
-  WAI_VALUE,
-};
-
-static GType GetAtkInterfaceTypeFromWAIType(WAIType type) {
-  switch (type) {
-    case WAI_ACTION:
-      return ATK_TYPE_ACTION;
-    case WAI_SELECTION:
-      return ATK_TYPE_SELECTION;
-    case WAI_EDITABLE_TEXT:
-      return ATK_TYPE_EDITABLE_TEXT;
-    case WAI_TEXT:
-      return ATK_TYPE_TEXT;
-    case WAI_COMPONENT:
-      return ATK_TYPE_COMPONENT;
-    case WAI_IMAGE:
-      return ATK_TYPE_IMAGE;
-    case WAI_TABLE:
-      return ATK_TYPE_TABLE;
-    case WAI_HYPERTEXT:
-      return ATK_TYPE_HYPERTEXT;
-    case WAI_HYPERLINK:
-      return ATK_TYPE_HYPERLINK_IMPL;
-    case WAI_DOCUMENT:
-      return ATK_TYPE_DOCUMENT;
-    case WAI_VALUE:
-      return ATK_TYPE_VALUE;
-  }
-
-  return G_TYPE_INVALID;
-}
-
-static GType GetAccessibilityTypeFromObject(BrowserAccessibilityGtk* obj) {
-  static const GTypeInfo type_info = {
-    sizeof(BrowserAccessibilityAtkClass),
-    (GBaseInitFunc) 0,
-    (GBaseFinalizeFunc) 0,
-    (GClassInitFunc) 0,
-    (GClassFinalizeFunc) 0,
-    0, /* class data */
-    sizeof(BrowserAccessibilityAtk), /* instance size */
-    0, /* nb preallocs */
-    (GInstanceInitFunc) 0,
-    0 /* value table */
-  };
-
-  guint16 interface_mask = GetInterfaceMaskFromObject(obj);
-  const char* atk_type_name = GetUniqueAccessibilityTypeName(interface_mask);
-  GType type = g_type_from_name(atk_type_name);
-  if (type)
-    return type;
-
-  type = g_type_register_static(BROWSER_ACCESSIBILITY_TYPE,
-                                atk_type_name,
-                                &type_info,
-                                GTypeFlags(0));
-  for (guint i = 0; i < G_N_ELEMENTS(AtkInterfacesInitFunctions); i++) {
-    if (interface_mask & (1 << i)) {
-      g_type_add_interface_static(
-          type,
-          GetAtkInterfaceTypeFromWAIType(static_cast<WAIType>(i)),
-          &AtkInterfacesInitFunctions[i]);
-    }
-  }
-
-  return type;
-}
-
-BrowserAccessibilityAtk* browser_accessibility_new(
-    BrowserAccessibilityGtk* obj) {
-  GType type = GetAccessibilityTypeFromObject(obj);
-  AtkObject* atk_object = static_cast<AtkObject*>(g_object_new(type, 0));
-
-  atk_object_initialize(atk_object, obj);
-
-  return BROWSER_ACCESSIBILITY(atk_object);
-}
-
-void browser_accessibility_detach(BrowserAccessibilityAtk* atk_object) {
-}
-
-// static
-BrowserAccessibility* BrowserAccessibility::Create() {
-  return new BrowserAccessibilityGtk();
-}
-
-BrowserAccessibilityGtk* BrowserAccessibility::ToBrowserAccessibilityGtk() {
-  return static_cast<BrowserAccessibilityGtk*>(this);
-}
-
-BrowserAccessibilityGtk::BrowserAccessibilityGtk() {
-  atk_object_ = ATK_OBJECT(browser_accessibility_new(this));
-}
-
-BrowserAccessibilityGtk::~BrowserAccessibilityGtk() {
-  browser_accessibility_detach(BROWSER_ACCESSIBILITY(atk_object_));
-}
-
-AtkObject* BrowserAccessibilityGtk::GetAtkObject() const {
-  if (!G_IS_OBJECT(atk_object_))
-    return NULL;
-  return atk_object_;
-}
-
-void BrowserAccessibilityGtk::PreInitialize() {
-  BrowserAccessibility::PreInitialize();
-  InitRoleAndState();
-
-  if (this->parent()) {
-    atk_object_set_parent(
-        atk_object_,
-        this->parent()->ToBrowserAccessibilityGtk()->GetAtkObject());
-  }
-}
-
-void BrowserAccessibilityGtk::InitRoleAndState() {
-  atk_acc_name_ = UTF16ToUTF8(name()).c_str();
-
-  switch(role_) {
-    case WebAccessibility::ROLE_BUTTON:
-      atk_role_ = ATK_ROLE_PUSH_BUTTON;
-      break;
-    case WebAccessibility::ROLE_CHECKBOX:
-      atk_role_ = ATK_ROLE_CHECK_BOX;
-      break;
-    case WebAccessibility::ROLE_COMBO_BOX:
-      atk_role_ = ATK_ROLE_COMBO_BOX;
-      break;
-    case WebAccessibility::ROLE_LINK:
-      atk_role_ = ATK_ROLE_LINK;
-      break;
-    case WebAccessibility::ROLE_RADIO_BUTTON:
-      atk_role_ = ATK_ROLE_RADIO_BUTTON;
-      break;
-    case WebAccessibility::ROLE_TEXTAREA:
-      atk_role_ = ATK_ROLE_ENTRY;
-      break;
-    case WebAccessibility::ROLE_TEXT_FIELD:
-      atk_role_ = ATK_ROLE_ENTRY;
-      break;
-    case WebAccessibility::ROLE_WEBCORE_LINK:
-      atk_role_ = ATK_ROLE_LINK;
-      break;
-    default:
-      atk_role_ = ATK_ROLE_UNKNOWN;
-      break;
-  }
-}