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// Copyright (c) 2011 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 "ui/aura_shell/shell.h"
#include "base/bind.h"
#include "ui/aura/desktop.h"
#include "ui/aura/screen_aura.h"
#include "ui/aura/toplevel_window_container.h"
#include "ui/aura/window.h"
#include "ui/aura/window_types.h"
#include "ui/aura_shell/default_container_event_filter.h"
#include "ui/aura_shell/default_container_layout_manager.h"
#include "ui/aura_shell/desktop_layout_manager.h"
#include "ui/aura_shell/launcher/launcher.h"
#include "ui/aura_shell/shell_delegate.h"
#include "ui/aura_shell/shell_factory.h"
#include "ui/aura_shell/shell_window_ids.h"
#include "ui/aura_shell/workspace/workspace_manager.h"
#include "ui/base/view_prop.h"
#include "ui/gfx/compositor/layer.h"
#include "ui/gfx/compositor/layer_animator.h"
#include "views/widget/native_widget_aura.h"
#include "views/widget/widget.h"
namespace aura_shell {
namespace {
// The right/left margin of work area in the screen.
const int kWorkAreaHorizontalMargin = 15;
using views::Widget;
// Creates each of the special window containers that holds windows of various
// types in the shell UI. They are added to |containers| from back to front in
// the z-index.
void CreateSpecialContainers(aura::Window::Windows* containers) {
aura::Window* background_container = new aura::Window(NULL);
background_container->set_id(
internal::kShellWindowId_DesktopBackgroundContainer);
containers->push_back(background_container);
aura::Window* default_container = new aura::ToplevelWindowContainer;
default_container->set_id(internal::kShellWindowId_DefaultContainer);
default_container->SetEventFilter(
new internal::DefaultContainerEventFilter(default_container));
containers->push_back(default_container);
aura::Window* always_on_top_container = new aura::ToplevelWindowContainer;
always_on_top_container->set_id(
internal::kShellWindowId_AlwaysOnTopContainer);
containers->push_back(always_on_top_container);
aura::Window* launcher_container = new aura::Window(NULL);
launcher_container->set_id(internal::kShellWindowId_LauncherContainer);
containers->push_back(launcher_container);
aura::Window* lock_container = new aura::Window(NULL);
lock_container->set_stops_event_propagation(true);
lock_container->set_id(internal::kShellWindowId_LockScreenContainer);
containers->push_back(lock_container);
aura::Window* status_container = new aura::Window(NULL);
status_container->set_id(internal::kShellWindowId_StatusContainer);
containers->push_back(status_container);
aura::Window* menu_container = new aura::Window(NULL);
menu_container->set_id(internal::kShellWindowId_MenusAndTooltipsContainer);
containers->push_back(menu_container);
}
} // namespace
// static
Shell* Shell::instance_ = NULL;
////////////////////////////////////////////////////////////////////////////////
// Shell, public:
Shell::Shell()
: ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)) {
aura::Desktop::GetInstance()->SetDelegate(this);
}
Shell::~Shell() {
}
// static
Shell* Shell::GetInstance() {
if (!instance_) {
instance_ = new Shell;
instance_->Init();
}
return instance_;
}
void Shell::Init() {
aura::Desktop* desktop_window = aura::Desktop::GetInstance();
desktop_window->SetCursor(aura::kCursorPointer);
aura::Window::Windows containers;
CreateSpecialContainers(&containers);
aura::Window::Windows::const_iterator i;
for (i = containers.begin(); i != containers.end(); ++i) {
(*i)->Init(ui::Layer::LAYER_HAS_NO_TEXTURE);
desktop_window->AddChild(*i);
(*i)->Show();
}
internal::DesktopLayoutManager* desktop_layout =
new internal::DesktopLayoutManager(desktop_window);
desktop_window->SetLayoutManager(desktop_layout);
desktop_layout->set_background_widget(internal::CreateDesktopBackground());
aura::ToplevelWindowContainer* toplevel_container =
GetContainer(internal::kShellWindowId_DefaultContainer)->
AsToplevelWindowContainer();
launcher_.reset(new Launcher(toplevel_container));
desktop_layout->set_launcher_widget(launcher_->widget());
desktop_layout->set_status_area_widget(internal::CreateStatusArea());
desktop_window->screen()->set_work_area_insets(
gfx::Insets(
0, kWorkAreaHorizontalMargin,
launcher_->widget()->GetWindowScreenBounds().height(),
kWorkAreaHorizontalMargin));
// Workspace Manager
workspace_manager_.reset(new WorkspaceManager(toplevel_container));
toplevel_container->SetLayoutManager(
new internal::DefaultContainerLayoutManager(
toplevel_container, workspace_manager_.get()));
// Force a layout.
desktop_layout->OnWindowResized();
}
void Shell::SetDelegate(ShellDelegate* delegate) {
delegate_.reset(delegate);
}
aura::Window* Shell::GetContainer(int container_id) {
return const_cast<aura::Window*>(
const_cast<const aura_shell::Shell*>(this)->GetContainer(container_id));
}
const aura::Window* Shell::GetContainer(int container_id) const {
return aura::Desktop::GetInstance()->GetChildById(container_id);
}
void Shell::ToggleOverview() {
workspace_manager_->SetOverview(!workspace_manager_->is_overview());
}
////////////////////////////////////////////////////////////////////////////////
// Shell, aura::DesktopDelegate implementation:
void Shell::AddChildToDefaultParent(aura::Window* window) {
aura::Window* parent = NULL;
intptr_t type = reinterpret_cast<intptr_t>(
ui::ViewProp::GetValue(window, views::NativeWidgetAura::kWindowTypeKey));
switch (static_cast<Widget::InitParams::Type>(type)) {
case Widget::InitParams::TYPE_WINDOW:
case Widget::InitParams::TYPE_WINDOW_FRAMELESS:
case Widget::InitParams::TYPE_CONTROL:
case Widget::InitParams::TYPE_BUBBLE:
case Widget::InitParams::TYPE_POPUP:
parent = GetContainer(internal::kShellWindowId_DefaultContainer);
break;
case Widget::InitParams::TYPE_MENU:
case Widget::InitParams::TYPE_TOOLTIP:
parent = GetContainer(internal::kShellWindowId_MenusAndTooltipsContainer);
break;
default:
// This will crash for controls, since they can't be parented to anything.
break;
}
parent->AddChild(window);
}
aura::Window* Shell::GetTopmostWindowToActivate(aura::Window* ignore) const {
const aura::ToplevelWindowContainer* container =
GetContainer(internal::kShellWindowId_DefaultContainer)->
AsToplevelWindowContainer();
return container->GetTopmostWindowToActivate(ignore);
}
} // namespace aura_shell
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