components/html_viewer/html_frame_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_FRAME_DELEGATE_H_
   6 #define COMPONENTS_HTML_VIEWER_HTML_FRAME_DELEGATE_H_
   7
   8 #include "components/html_viewer/html_frame.h"
   9
  10 namespace mojo {
  11 class ApplicationImpl;
  12 }
  13
  14 namespace html_viewer {
  15
  16 class HTMLFrameDelegate {
  17  public:
  18   // Invoked when the Frame the delegate is attached to finishes loading. This
  19   // is not invoked for any child frames, only the frame returned from
  20   // HTMLFrameTreeManager::CreateFrameAndAttachToTree().
  21   virtual void OnFrameDidFinishLoad() = 0;
  22
  23   // Returns the ApplicationImpl for the frame.
  24   virtual mojo::ApplicationImpl* GetApp() = 0;
  25
  26   // Creates a new HTMLFrame. The delegate must return non-null.
  27   virtual HTMLFrame* CreateHTMLFrame(HTMLFrame::CreateParams* params) = 0;
  28
  29   // Invoked when the HTMLFrame the delegate is associated with is swapped
  30   // to a remote frame.
  31   virtual void OnFrameSwappedToRemote() = 0;
  32
  33  protected:
  34   virtual ~HTMLFrameDelegate() {}
  35 };
  36
  37 }  // namespace html_viewer
  38
  39 #endif  // COMPONENTS_HTML_VIEWER_HTML_FRAME_DELEGATE_H_