components/html_viewer/html_document_application_delegate.h

   1 // Copyright 2015 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_HTML_DOCUMENT_APPLICATION_DELEGATE_H_
   6 #define COMPONENTS_HTML_VIEWER_HTML_DOCUMENT_APPLICATION_DELEGATE_H_
   7
   8 #include <set>
   9
  10 #include "base/callback.h"
  11 #include "base/macros.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "components/html_viewer/html_frame.h"
  15 #include "mojo/application/public/cpp/application_delegate.h"
  16 #include "mojo/application/public/cpp/application_impl.h"
  17 #include "mojo/services/network/public/interfaces/url_loader_factory.mojom.h"
  18 #include "third_party/mojo/src/mojo/public/cpp/bindings/interface_request.h"
  19
  20 namespace html_viewer {
  21
  22 class GlobalState;
  23 class HTMLDocumentOOPIF;
  24
  25 // ApplicationDelegate created by the content handler for a specific url.
  26 class HTMLDocumentApplicationDelegate : public mojo::ApplicationDelegate {
  27  public:
  28   HTMLDocumentApplicationDelegate(
  29       mojo::InterfaceRequest<mojo::Application> request,
  30       mojo::URLResponsePtr response,
  31       GlobalState* global_state,
  32       scoped_ptr<mojo::AppRefCount> parent_app_refcount);
  33
  34   using HTMLFrameCreationCallback =
  35       base::Callback<HTMLFrame*(HTMLFrame::CreateParams*)>;
  36
  37   void SetHTMLFrameCreationCallback(const HTMLFrameCreationCallback& callback);
  38
  39  private:
  40   class ServiceConnectorQueue;
  41
  42   ~HTMLDocumentApplicationDelegate() override;
  43
  44   // Callback from the quit closure. We key off this rather than
  45   // ApplicationDelegate::Quit() as we don't want to shut down the messageloop
  46   // when we quit (the messageloop is shared among multiple
  47   // HTMLDocumentApplicationDelegates).
  48   void OnTerminate();
  49
  50   // ApplicationDelegate:
  51   void Initialize(mojo::ApplicationImpl* app) override;
  52   bool ConfigureIncomingConnection(
  53       mojo::ApplicationConnection* connection) override;
  54
  55   void OnHTMLDocumentDeleted2(HTMLDocumentOOPIF* document);
  56   void OnResponseReceived(mojo::URLLoaderPtr loader,
  57                           mojo::ApplicationConnection* connection,
  58                           scoped_ptr<ServiceConnectorQueue> connector_queue,
  59                           mojo::URLResponsePtr response);
  60
  61   mojo::ApplicationImpl app_;
  62   // AppRefCount of the parent (HTMLViewer).
  63   scoped_ptr<mojo::AppRefCount> parent_app_refcount_;
  64   const mojo::String url_;
  65   mojo::URLLoaderFactoryPtr url_loader_factory_;
  66   mojo::URLResponsePtr initial_response_;
  67   GlobalState* global_state_;
  68
  69   // As we create HTMLDocuments they are added here. They are removed when the
  70   // HTMLDocument is deleted.
  71   std::set<HTMLDocumentOOPIF*> documents2_;
  72
  73   HTMLFrameCreationCallback html_frame_creation_callback_;
  74
  75   base::WeakPtrFactory<HTMLDocumentApplicationDelegate> weak_factory_;
  76
  77   DISALLOW_COPY_AND_ASSIGN(HTMLDocumentApplicationDelegate);
  78 };
  79
  80 }  // namespace html_viewer
  81
  82 #endif  // COMPONENTS_HTML_VIEWER_HTML_DOCUMENT_APPLICATION_DELEGATE_H_