content/renderer/load_progress_tracker.h

   1 // Copyright (c) 2011 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 CONTENT_RENDERER_LOAD_PROGRESS_TRACKER_H_
   6 #define CONTENT_RENDERER_LOAD_PROGRESS_TRACKER_H_
   7
   8 #include "base/logging.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "base/time.h"
  11
  12 namespace WebKit {
  13 class WebFrame;
  14 }
  15
  16 namespace content {
  17 class RenderViewImpl;
  18
  19 class LoadProgressTracker {
  20  public:
  21   explicit LoadProgressTracker(RenderViewImpl* render_view);
  22   ~LoadProgressTracker();
  23
  24   void DidStopLoading();
  25
  26   void DidChangeLoadProgress(WebKit::WebFrame* frame, double progress);
  27
  28  private:
  29   void ResetStates();
  30
  31   void SendChangeLoadProgress();
  32
  33   RenderViewImpl* render_view_;
  34
  35   WebKit::WebFrame* tracked_frame_;
  36
  37   double progress_;
  38
  39   base::TimeTicks last_time_progress_sent_;
  40
  41   base::WeakPtrFactory<LoadProgressTracker> weak_factory_;
  42
  43   DISALLOW_COPY_AND_ASSIGN(LoadProgressTracker);
  44 };
  45
  46 }  // namespace content
  47
  48 #endif  // CONTENT_RENDERER_LOAD_PROGRESS_TRACKER_H_