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 "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
   9 #include "third_party/mojo_services/src/accessibility/public/interfaces/accessibility.mojom.h"
  10
  11 namespace blink {
  12 class WebAXObject;
  13 class WebView;
  14 }  // namespace blink
  15
  16 namespace html_viewer {
  17
  18 // Caller must ensure that |web_view| outlives AxProviderImpl.
  19 class AxProviderImpl : public mojo::AxProvider {
  20  public:
  21   AxProviderImpl(blink::WebView* web_view,
  22                  mojo::InterfaceRequest<mojo::AxProvider> request);
  23   ~AxProviderImpl() override;
  24   void GetTree(const mojo::Callback<void(mojo::Array<mojo::AxNodePtr> nodes)>&
  25                    callback) override;
  26
  27  private:
  28   int Populate(const blink::WebAXObject& ax_object,
  29                int parent_id,
  30                int next_sibling_id,
  31                mojo::Array<mojo::AxNodePtr>* result);
  32   mojo::AxNodePtr ConvertAxNode(const blink::WebAXObject& ax_object,
  33                                 int parent_id,
  34                                 int next_sibling_id);
  35
  36   blink::WebView* web_view_;
  37   mojo::Binding<mojo::AxProvider> binding_;
  38 };
  39
  40 }  // namespace html_viewer
  41
  42 #endif  // COMPONENTS_HTML_VIEWER_AX_PROVIDER_IMPL_H_