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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/monitor/monitor_controller.h"
#include "ash/monitor/multi_monitor_manager.h"
#include "ash/shell.h"
#include "ui/aura/env.h"
#include "ui/aura/root_window.h"
#include "ui/aura/window.h"
#include "ui/gfx/monitor.h"
namespace ash {
namespace internal {
MonitorController::MonitorController() {
aura::Env::GetInstance()->monitor_manager()->AddObserver(this);
Init();
}
MonitorController::~MonitorController() {
aura::Env::GetInstance()->monitor_manager()->RemoveObserver(this);
// Remove the root first.
int monitor_id = Shell::GetPrimaryRootWindow()->GetProperty(kMonitorIdKey);
DCHECK(monitor_id >= 0);
root_windows_.erase(monitor_id);
STLDeleteContainerPairSecondPointers(
root_windows_.begin(), root_windows_.end());
}
void MonitorController::OnMonitorBoundsChanged(const gfx::Monitor& monitor) {
root_windows_[monitor.id()]->SetHostBounds(monitor.bounds_in_pixel());
}
void MonitorController::OnMonitorAdded(const gfx::Monitor& monitor) {
if (root_windows_.empty()) {
root_windows_[monitor.id()] = Shell::GetPrimaryRootWindow();
Shell::GetPrimaryRootWindow()->SetHostBounds(monitor.bounds_in_pixel());
return;
}
aura::RootWindow* root = aura::Env::GetInstance()->monitor_manager()->
CreateRootWindowForMonitor(monitor);
root_windows_[monitor.id()] = root;
Shell::GetInstance()->InitRootWindowForSecondaryMonitor(root);
}
void MonitorController::OnMonitorRemoved(const gfx::Monitor& monitor) {
aura::RootWindow* root = root_windows_[monitor.id()];
DCHECK(root);
// Primary monitor should never be removed by MonitorManager.
DCHECK(root != Shell::GetPrimaryRootWindow());
// Monitor for root window will be deleted when the Primary RootWindow
// is deleted by the Shell.
if (root != Shell::GetPrimaryRootWindow()) {
root_windows_.erase(monitor.id());
delete root;
}
}
void MonitorController::Init() {
aura::MonitorManager* monitor_manager =
aura::Env::GetInstance()->monitor_manager();
for (size_t i = 0; i < monitor_manager->GetNumMonitors(); ++i) {
const gfx::Monitor& monitor = monitor_manager->GetMonitorAt(i);
if (i == 0) {
// Primary monitor
root_windows_[monitor.id()] = Shell::GetPrimaryRootWindow();
Shell::GetPrimaryRootWindow()->SetHostBounds(monitor.bounds_in_pixel());
} else {
aura::RootWindow* root =
monitor_manager->CreateRootWindowForMonitor(monitor);
root_windows_[monitor.id()] = root;
Shell::GetInstance()->InitRootWindowForSecondaryMonitor(root);
}
}
}
} // namespace internal
} // namespace ash
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