components/html_viewer/ax_provider_impl.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_HTML_VIEWER_AX_PROVIDER_IMPL_H_
   6 #define COMPONENTS_HTML_VIEWER_AX_PROVIDER_IMPL_H_
   7
   8 #include "base/basictypes.h"
   9 #include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
  10 #include "third_party/mojo_services/src/accessibility/public/interfaces/accessibility.mojom.h"
  11
  12 namespace blink {
  13 class WebAXObject;
  14 class WebView;
  15 }  // namespace blink
  16
  17 namespace html_viewer {
  18
  19 // Caller must ensure that |web_view| outlives AxProviderImpl.
  20 class AxProviderImpl : public mojo::AxProvider {
  21  public:
  22   AxProviderImpl(blink::WebView* web_view,
  23                  mojo::InterfaceRequest<mojo::AxProvider> request);
  24   ~AxProviderImpl() override;
  25   void GetTree(const mojo::Callback<void(mojo::Array<mojo::AxNodePtr> nodes)>&
  26                    callback) override;
  27
  28  private:
  29   int Populate(const blink::WebAXObject& ax_object,
  30                int parent_id,
  31                int next_sibling_id,
  32                mojo::Array<mojo::AxNodePtr>* result);
  33   mojo::AxNodePtr ConvertAxNode(const blink::WebAXObject& ax_object,
  34                                 int parent_id,
  35                                 int next_sibling_id);
  36
  37   blink::WebView* web_view_;
  38   mojo::Binding<mojo::AxProvider> binding_;
  39
  40   DISALLOW_COPY_AND_ASSIGN(AxProviderImpl);
  41 };
  42
  43 }  // namespace html_viewer
  44
  45 #endif  // COMPONENTS_HTML_VIEWER_AX_PROVIDER_IMPL_H_