15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef REMOTING_HOST_RESIZING_HOST_OBSERVER_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define REMOTING_HOST_RESIZING_HOST_OBSERVER_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 9868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/callback.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/compiler_specific.h" 112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/memory/scoped_ptr.h" 12868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/memory/weak_ptr.h" 13eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "base/time/time.h" 14eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "base/timer/timer.h" 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "remoting/host/screen_controls.h" 16868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "remoting/host/screen_resolution.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace remoting { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class DesktopResizer; 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// TODO(alexeypa): Rename this class to reflect that it is not 232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// HostStatusObserver any more. 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Uses the specified DesktopResizer to match host desktop size to the client 262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// view size as closely as is possible. When the connection closes, restores 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// the original desktop size. 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class ResizingHostObserver : public ScreenControls { 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit ResizingHostObserver(scoped_ptr<DesktopResizer> desktop_resizer); 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~ResizingHostObserver(); 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // ScreenControls interface. 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void SetScreenResolution(const ScreenResolution& resolution) OVERRIDE; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 36868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Provide a replacement for base::Time::Now so that this class can be 37868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // unit-tested in a timely manner. This function will be called exactly 38868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // once for each call to SetScreenResolution. 39868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) void SetNowFunctionForTesting( 40868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const base::Callback<base::Time(void)>& now_function); 41868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_ptr<DesktopResizer> desktop_resizer_; 440f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) ScreenResolution original_resolution_; 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 46868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // State to manage rate-limiting of desktop resizes. 47868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::OneShotTimer<ResizingHostObserver> deferred_resize_timer_; 48868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::Time previous_resize_time_; 49868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::Callback<base::Time(void)> now_function_; 50868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 51868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::WeakPtrFactory<ResizingHostObserver> weak_factory_; 52868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ResizingHostObserver); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace remoting 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // REMOTING_HOST_RESIZING_HOST_OBSERVER_H_ 59