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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/ash_switches.h"
#include "ash/monitor/multi_monitor_manager.h"
#include "ash/root_window_controller.h"
#include "ash/shell.h"
#include "ash/wm/window_util.h"
#include "base/command_line.h"
#include "ui/aura/env.h"
#include "ui/aura/root_window.h"
#include "ui/aura/window.h"
#include "ui/gfx/display.h"
namespace ash {
namespace internal {
namespace {
bool extended_desktop_enabled = false;
}
MonitorController::MonitorController()
: secondary_display_layout_(RIGHT) {
aura::Env::GetInstance()->monitor_manager()->AddObserver(this);
}
MonitorController::~MonitorController() {
aura::Env::GetInstance()->monitor_manager()->RemoveObserver(this);
// Delete all root window controllers, which deletes root window
// from the last so that the primary root window gets deleted last.
for (std::map<int, aura::RootWindow*>::const_reverse_iterator it =
root_windows_.rbegin(); it != root_windows_.rend(); ++it) {
internal::RootWindowController* controller =
wm::GetRootWindowController(it->second);
// RootWindow may not have RootWindowController in non
// extended desktop mode.
if (controller)
delete controller;
else
delete it->second;
}
}
void MonitorController::InitPrimaryDisplay() {
aura::MonitorManager* monitor_manager =
aura::Env::GetInstance()->monitor_manager();
const gfx::Display& display = monitor_manager->GetDisplayAt(0);
DCHECK_EQ(0, display.id());
aura::RootWindow* root =
monitor_manager->CreateRootWindowForMonitor(display);
root_windows_[display.id()] = root;
if (aura::MonitorManager::use_fullscreen_host_window() &&
!IsExtendedDesktopEnabled()) {
root->ConfineCursorToWindow();
}
root->SetHostBounds(display.bounds_in_pixel());
}
void MonitorController::InitSecondaryDisplays() {
aura::MonitorManager* monitor_manager =
aura::Env::GetInstance()->monitor_manager();
for (size_t i = 1; i < monitor_manager->GetNumDisplays(); ++i) {
const gfx::Display& display = monitor_manager->GetDisplayAt(i);
aura::RootWindow* root =
monitor_manager->CreateRootWindowForMonitor(display);
root_windows_[display.id()] = root;
Shell::GetInstance()->InitRootWindowForSecondaryMonitor(root);
}
}
aura::RootWindow* MonitorController::GetPrimaryRootWindow() {
DCHECK(!root_windows_.empty());
return root_windows_[0];
}
void MonitorController::CloseChildWindows() {
for (std::map<int, aura::RootWindow*>::const_iterator it =
root_windows_.begin(); it != root_windows_.end(); ++it) {
aura::RootWindow* root_window = it->second;
internal::RootWindowController* controller =
wm::GetRootWindowController(root_window);
if (controller) {
controller->CloseChildWindows();
} else {
while (!root_window->children().empty()) {
aura::Window* child = root_window->children()[0];
delete child;
}
}
}
}
std::vector<aura::RootWindow*> MonitorController::GetAllRootWindows() {
std::vector<aura::RootWindow*> windows;
for (std::map<int, aura::RootWindow*>::const_iterator it =
root_windows_.begin(); it != root_windows_.end(); ++it) {
if (wm::GetRootWindowController(it->second))
windows.push_back(it->second);
}
return windows;
}
std::vector<internal::RootWindowController*>
MonitorController::GetAllRootWindowControllers() {
std::vector<internal::RootWindowController*> controllers;
for (std::map<int, aura::RootWindow*>::const_iterator it =
root_windows_.begin(); it != root_windows_.end(); ++it) {
internal::RootWindowController* controller =
wm::GetRootWindowController(it->second);
if (controller)
controllers.push_back(controller);
}
return controllers;
}
void MonitorController::SetSecondaryDisplayLayout(
SecondaryDisplayLayout layout) {
secondary_display_layout_ = layout;
}
void MonitorController::OnDisplayBoundsChanged(const gfx::Display& display) {
root_windows_[display.id()]->SetHostBounds(display.bounds_in_pixel());
}
void MonitorController::OnDisplayAdded(const gfx::Display& display) {
if (root_windows_.empty()) {
root_windows_[display.id()] = Shell::GetPrimaryRootWindow();
Shell::GetPrimaryRootWindow()->SetHostBounds(display.bounds_in_pixel());
return;
}
aura::RootWindow* root = aura::Env::GetInstance()->monitor_manager()->
CreateRootWindowForMonitor(display);
root_windows_[display.id()] = root;
Shell::GetInstance()->InitRootWindowForSecondaryMonitor(root);
}
void MonitorController::OnDisplayRemoved(const gfx::Display& display) {
aura::RootWindow* root = root_windows_[display.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(display.id());
internal::RootWindowController* controller =
wm::GetRootWindowController(root);
if (controller)
delete controller;
else
delete root;
}
}
// static
bool MonitorController::IsExtendedDesktopEnabled(){
return extended_desktop_enabled ||
CommandLine::ForCurrentProcess()->HasSwitch(
switches::kAshExtendedDesktop);
}
// static
void MonitorController::SetExtendedDesktopEnabled(bool enabled) {
extended_desktop_enabled = enabled;
}
} // namespace internal
} // namespace ash
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