1 // Copyright 2014 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 #include "ash/display/projecting_observer_chromeos.h" 6 7 #include "chromeos/dbus/dbus_thread_manager.h" 8 #include "chromeos/dbus/power_manager_client.h" 9 #include "ui/display/types/display_snapshot.h" 10 11 namespace ash { 12 13 ProjectingObserver::ProjectingObserver() 14 : has_internal_output_(false), 15 output_count_(0), 16 casting_session_count_(0) {} 17 18 ProjectingObserver::~ProjectingObserver() {} 19 20 void ProjectingObserver::OnDisplayModeChanged( 21 const ui::DisplayConfigurator::DisplayStateList& display_states) { 22 has_internal_output_ = false; 23 output_count_ = display_states.size(); 24 25 for (size_t i = 0; i < display_states.size(); ++i) { 26 if (display_states[i].display->type() == 27 ui::DISPLAY_CONNECTION_TYPE_INTERNAL) { 28 has_internal_output_ = true; 29 break; 30 } 31 } 32 33 SetIsProjecting(); 34 } 35 36 void ProjectingObserver::OnCastingSessionStartedOrStopped(bool started) { 37 if (started) { 38 ++casting_session_count_; 39 } else { 40 DCHECK_GT(casting_session_count_, 0); 41 --casting_session_count_; 42 if (casting_session_count_ < 0) 43 casting_session_count_ = 0; 44 } 45 46 SetIsProjecting(); 47 } 48 49 void ProjectingObserver::SetIsProjecting() { 50 // "Projecting" is defined as having more than 1 output connected while at 51 // least one of them is an internal output. 52 bool projecting = has_internal_output_ && 53 (output_count_ + casting_session_count_ > 1); 54 55 chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->SetIsProjecting( 56 projecting); 57 } 58 59 } // namespace ash 60
