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// Copyright 2015 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 "mash/wm/window_manager_application.h"
#include <stdint.h>
#include <utility>
#include "base/bind.h"
#include "components/mus/common/util.h"
#include "components/mus/public/cpp/event_matcher.h"
#include "components/mus/public/cpp/window.h"
#include "components/mus/public/cpp/window_tree_connection.h"
#include "components/mus/public/cpp/window_tree_host_factory.h"
#include "mash/wm/accelerator_registrar_impl.h"
#include "mash/wm/background_layout.h"
#include "mash/wm/shadow_controller.h"
#include "mash/wm/shelf_layout.h"
#include "mash/wm/user_window_controller_impl.h"
#include "mash/wm/window_layout.h"
#include "mash/wm/window_manager_impl.h"
#include "mojo/services/tracing/public/cpp/tracing_impl.h"
#include "mojo/shell/public/cpp/application_connection.h"
#include "ui/mojo/init/ui_init.h"
#include "ui/views/mus/aura_init.h"
#include "ui/views/mus/display_converter.h"
namespace mash {
namespace wm {
namespace {
const uint32_t kWindowSwitchCmd = 1;
void AssertTrue(bool success) {
DCHECK(success);
}
} // namespace
WindowManagerApplication::WindowManagerApplication()
: root_(nullptr),
window_count_(0),
app_(nullptr),
host_client_binding_(this) {}
WindowManagerApplication::~WindowManagerApplication() {}
mus::Window* WindowManagerApplication::GetWindowForContainer(
mojom::Container container) {
const mus::Id window_id = root_->connection()->GetConnectionId() << 16 |
static_cast<uint16_t>(container);
return root_->GetChildById(window_id);
}
mus::Window* WindowManagerApplication::GetWindowById(mus::Id id) {
return root_->GetChildById(id);
}
bool WindowManagerApplication::WindowIsContainer(
const mus::Window* window) const {
return window && window->parent() == root_;
}
void WindowManagerApplication::AddAccelerators() {
window_tree_host_->AddAccelerator(
kWindowSwitchCmd,
mus::CreateKeyMatcher(mus::mojom::KEYBOARD_CODE_TAB,
mus::mojom::EVENT_FLAGS_CONTROL_DOWN),
base::Bind(&AssertTrue));
}
void WindowManagerApplication::OnAcceleratorRegistrarDestroyed(
AcceleratorRegistrarImpl* registrar) {
accelerator_registrars_.erase(registrar);
}
void WindowManagerApplication::Initialize(mojo::ApplicationImpl* app) {
app_ = app;
tracing_.Initialize(app);
window_manager_.reset(new WindowManagerImpl());
// Don't bind to the WindowManager immediately. Wait for OnEmbed() first.
mus::mojom::WindowManagerPtr window_manager;
requests_.push_back(
make_scoped_ptr(new mojo::InterfaceRequest<mus::mojom::WindowManager>(
mojo::GetProxy(&window_manager))));
user_window_controller_.reset(new UserWindowControllerImpl());
mus::mojom::WindowTreeHostClientPtr host_client;
host_client_binding_.Bind(GetProxy(&host_client));
mus::CreateSingleWindowTreeHost(app, std::move(host_client), this,
&window_tree_host_, std::move(window_manager),
window_manager_.get());
}
bool WindowManagerApplication::ConfigureIncomingConnection(
mojo::ApplicationConnection* connection) {
connection->AddService<mash::wm::mojom::UserWindowController>(this);
connection->AddService<mus::mojom::AcceleratorRegistrar>(this);
connection->AddService<mus::mojom::WindowManager>(this);
return true;
}
void WindowManagerApplication::OnAccelerator(uint32_t id,
mus::mojom::EventPtr event) {
switch (id) {
case kWindowSwitchCmd:
window_tree_host_->ActivateNextWindow();
break;
default:
for (auto* registrar : accelerator_registrars_) {
if (registrar->OwnsAccelerator(id)) {
registrar->ProcessAccelerator(id, std::move(event));
break;
}
}
}
}
void WindowManagerApplication::OnEmbed(mus::Window* root) {
root_ = root;
root_->AddObserver(this);
CreateContainers();
background_layout_.reset(new BackgroundLayout(
GetWindowForContainer(mojom::CONTAINER_USER_BACKGROUND)));
shelf_layout_.reset(
new ShelfLayout(GetWindowForContainer(mojom::CONTAINER_USER_SHELF)));
mus::Window* window = GetWindowForContainer(mojom::CONTAINER_USER_WINDOWS);
window_layout_.reset(
new WindowLayout(GetWindowForContainer(mojom::CONTAINER_USER_WINDOWS)));
window_tree_host_->AddActivationParent(window->id());
window_tree_host_->SetTitle("Mash");
AddAccelerators();
ui_init_.reset(new ui::mojo::UIInit(views::GetDisplaysFromWindow(root)));
aura_init_.reset(new views::AuraInit(app_, "mash_wm_resources.pak"));
window_manager_->Initialize(this);
for (auto& request : requests_)
window_manager_binding_.AddBinding(window_manager_.get(),
std::move(*request));
requests_.clear();
user_window_controller_->Initialize(this);
for (auto& request : user_window_controller_requests_)
user_window_controller_binding_.AddBinding(user_window_controller_.get(),
std::move(*request));
user_window_controller_requests_.clear();
shadow_controller_.reset(new ShadowController(root->connection()));
}
void WindowManagerApplication::OnConnectionLost(
mus::WindowTreeConnection* connection) {
// TODO(sky): shutdown.
NOTIMPLEMENTED();
shadow_controller_.reset();
}
void WindowManagerApplication::Create(
mojo::ApplicationConnection* connection,
mojo::InterfaceRequest<mash::wm::mojom::UserWindowController> request) {
if (root_) {
user_window_controller_binding_.AddBinding(user_window_controller_.get(),
std::move(request));
} else {
user_window_controller_requests_.push_back(make_scoped_ptr(
new mojo::InterfaceRequest<mash::wm::mojom::UserWindowController>(
std::move(request))));
}
}
void WindowManagerApplication::Create(
mojo::ApplicationConnection* connection,
mojo::InterfaceRequest<mus::mojom::AcceleratorRegistrar> request) {
static int accelerator_registrar_count = 0;
if (accelerator_registrar_count == std::numeric_limits<int>::max()) {
// Restart from zero if we have reached the limit. It is technically
// possible to end up with multiple active registrars with the same
// namespace, but it is highly unlikely. In the event that multiple
// registrars have the same namespace, this new registrar will be unable to
// install accelerators.
accelerator_registrar_count = 0;
}
accelerator_registrars_.insert(new AcceleratorRegistrarImpl(
window_tree_host_.get(), ++accelerator_registrar_count,
std::move(request),
base::Bind(&WindowManagerApplication::OnAcceleratorRegistrarDestroyed,
base::Unretained(this))));
}
void WindowManagerApplication::Create(
mojo::ApplicationConnection* connection,
mojo::InterfaceRequest<mus::mojom::WindowManager> request) {
if (root_) {
window_manager_binding_.AddBinding(window_manager_.get(),
std::move(request));
} else {
requests_.push_back(
make_scoped_ptr(new mojo::InterfaceRequest<mus::mojom::WindowManager>(
std::move(request))));
}
}
void WindowManagerApplication::OnWindowDestroyed(mus::Window* window) {
DCHECK_EQ(window, root_);
root_->RemoveObserver(this);
// Delete the |window_manager_| here so that WindowManager doesn't have to
// worry about the possibility of |root_| being null.
window_manager_.reset();
root_ = nullptr;
}
void WindowManagerApplication::CreateContainers() {
for (uint16_t container =
static_cast<uint16_t>(mojom::CONTAINER_ALL_USER_BACKGROUND);
container < static_cast<uint16_t>(mojom::CONTAINER_COUNT); ++container) {
mus::Window* window = root_->connection()->NewWindow();
DCHECK_EQ(mus::LoWord(window->id()), container)
<< "Containers must be created before other windows!";
window->SetBounds(root_->bounds());
window->SetVisible(true);
root_->AddChild(window);
}
}
} // namespace wm
} // namespace mash
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