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/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_ 49