mandoline/tab/frame_tree_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 MANDOLINE_TAB_FRAME_TREE_DELEGATE_H_
   6 #define MANDOLINE_TAB_FRAME_TREE_DELEGATE_H_
   7
   8 #include "mandoline/tab/public/interfaces/frame_tree.mojom.h"
   9 #include "mojo/services/network/public/interfaces/url_loader.mojom.h"
  10
  11 namespace mandoline {
  12
  13 class Frame;
  14 class MessageEvent;
  15
  16 class FrameTreeDelegate {
  17  public:
  18   virtual bool CanPostMessageEventToFrame(const Frame* source,
  19                                           const Frame* target,
  20                                           MessageEvent* event) = 0;
  21   virtual void LoadingStateChanged(bool loading) = 0;
  22   virtual void ProgressChanged(double progress) = 0;
  23
  24   // |source| is requesting a navigation. If |target_type| is
  25   // |EXISTING_FRAME| then |target_frame| identifies the frame to perform the
  26   // navigation in, otherwise |target_frame| is not used. |target_frame| may
  27   // be null, even for |EXISTING_FRAME|.
  28   virtual void RequestNavigate(Frame* source,
  29                                NavigationTargetType target_type,
  30                                Frame* target_frame,
  31                                mojo::URLRequestPtr request) = 0;
  32
  33  protected:
  34   virtual ~FrameTreeDelegate() {}
  35 };
  36
  37 }  // namespace mandoline
  38
  39 #endif  // MANDOLINE_TAB_FRAME_TREE_DELEGATE_H_