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// Copyright 2014 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 "base/basictypes.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "mojo/common/common_type_converters.h"
#include "mojo/examples/window_manager/window_manager.mojom.h"
#include "mojo/public/cpp/application/application_connection.h"
#include "mojo/public/cpp/application/application_delegate.h"
#include "mojo/public/cpp/application/application_impl.h"
#include "mojo/services/public/cpp/geometry/geometry_type_converters.h"
#include "mojo/services/public/cpp/view_manager/node.h"
#include "mojo/services/public/cpp/view_manager/view.h"
#include "mojo/services/public/cpp/view_manager/view_manager.h"
#include "mojo/services/public/cpp/view_manager/view_manager_client_factory.h"
#include "mojo/services/public/cpp/view_manager/view_manager_delegate.h"
#include "mojo/services/public/cpp/view_manager/view_observer.h"
#include "mojo/services/public/interfaces/navigation/navigation.mojom.h"
#include "mojo/views/native_widget_view_manager.h"
#include "mojo/views/views_init.h"
#include "ui/aura/client/focus_client.h"
#include "ui/aura/window.h"
#include "ui/events/event.h"
#include "ui/views/background.h"
#include "ui/views/controls/textfield/textfield.h"
#include "ui/views/controls/textfield/textfield_controller.h"
#include "ui/views/focus/focus_manager.h"
#include "ui/views/layout/layout_manager.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_delegate.h"
#include "ui/views/widget/widget_observer.h"
#include "url/gurl.h"
namespace mojo {
namespace examples {
class BrowserLayoutManager : public views::LayoutManager {
public:
BrowserLayoutManager() {}
virtual ~BrowserLayoutManager() {}
private:
// Overridden from views::LayoutManager:
virtual void Layout(views::View* host) OVERRIDE {
// Browser view has one child, a text input field.
DCHECK_EQ(1, host->child_count());
views::View* text_field = host->child_at(0);
gfx::Size ps = text_field->GetPreferredSize();
text_field->SetBoundsRect(gfx::Rect(host->width(), ps.height()));
}
virtual gfx::Size GetPreferredSize(const views::View* host) const OVERRIDE {
return gfx::Size();
}
DISALLOW_COPY_AND_ASSIGN(BrowserLayoutManager);
};
// KeyboardManager handles notifying the windowmanager when views are focused.
// To use create one and KeyboardManager will take care of all other details.
//
// TODO(sky): it would be nice if this were put in NativeWidgetViewManager, but
// that requires NativeWidgetViewManager to take an IWindowManager. That may be
// desirable anyway...
class KeyboardManager
: public views::FocusChangeListener,
public ui::EventHandler,
public views::WidgetObserver {
public:
KeyboardManager(views::Widget* widget,
IWindowManager* window_manager,
Node* node)
: widget_(widget),
window_manager_(window_manager),
node_(node),
last_view_id_(0),
focused_view_(NULL) {
widget_->GetFocusManager()->AddFocusChangeListener(this);
widget_->AddObserver(this);
widget_->GetNativeView()->AddPostTargetHandler(this);
}
private:
virtual ~KeyboardManager() {
widget_->GetFocusManager()->RemoveFocusChangeListener(this);
widget_->GetNativeView()->RemovePostTargetHandler(this);
widget_->RemoveObserver(this);
HideKeyboard();
}
void ShowKeyboard(views::View* view) {
if (focused_view_ == view)
return;
const gfx::Rect bounds_in_widget =
view->ConvertRectToWidget(gfx::Rect(view->bounds().size()));
last_view_id_ = node_->active_view()->id();
window_manager_->ShowKeyboard(last_view_id_,
Rect::From(bounds_in_widget));
// TODO(sky): listen for view to be removed.
focused_view_ = view;
}
void HideKeyboard() {
if (!focused_view_)
return;
window_manager_->HideKeyboard(last_view_id_);
last_view_id_ = 0;
focused_view_ = NULL;
}
// views::FocusChangeListener:
virtual void OnWillChangeFocus(views::View* focused_before,
views::View* focused_now) OVERRIDE {
}
virtual void OnDidChangeFocus(views::View* focused_before,
views::View* focused_now) OVERRIDE {
if (focused_view_ && focused_now != focused_view_)
HideKeyboard();
}
// ui::EventHandler:
virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE {
views::View* focused_now = widget_->GetFocusManager()->GetFocusedView();
if (focused_now &&
focused_now->GetClassName() == views::Textfield::kViewClassName &&
(event->flags() & ui::EF_FROM_TOUCH) != 0) {
ShowKeyboard(focused_now);
}
}
// views::WidgetObserver:
virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE {
delete this;
}
views::Widget* widget_;
IWindowManager* window_manager_;
Node* node_;
Id last_view_id_;
views::View* focused_view_;
DISALLOW_COPY_AND_ASSIGN(KeyboardManager);
};
// This is the basics of creating a views widget with a textfield.
// TODO: cleanup!
class Browser : public ApplicationDelegate,
public ViewManagerDelegate,
public views::TextfieldController,
public NodeObserver {
public:
Browser()
: view_manager_(NULL),
view_manager_client_factory_(this),
root_(NULL),
widget_(NULL) {}
virtual ~Browser() {
if (root_)
root_->RemoveObserver(this);
}
private:
// Overridden from ApplicationDelegate:
virtual void Initialize(ApplicationImpl* app) MOJO_OVERRIDE {
views_init_.reset(new ViewsInit);
app->ConnectToService("mojo:mojo_window_manager", &navigator_host_);
app->ConnectToService("mojo:mojo_window_manager", &window_manager_);
}
virtual bool ConfigureIncomingConnection(ApplicationConnection* connection)
MOJO_OVERRIDE {
connection->AddService(&view_manager_client_factory_);
return true;
}
void CreateWidget(Node* node) {
views::Textfield* textfield = new views::Textfield;
textfield->set_controller(this);
views::WidgetDelegateView* widget_delegate = new views::WidgetDelegateView;
widget_delegate->GetContentsView()->set_background(
views::Background::CreateSolidBackground(SK_ColorBLUE));
widget_delegate->GetContentsView()->AddChildView(textfield);
widget_delegate->GetContentsView()->SetLayoutManager(
new BrowserLayoutManager);
widget_ = new views::Widget;
views::Widget::InitParams params(
views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
params.native_widget = new NativeWidgetViewManager(widget_, node);
params.delegate = widget_delegate;
params.bounds = gfx::Rect(node->bounds().width(), node->bounds().height());
widget_->Init(params);
// KeyboardManager handles deleting itself when the widget is destroyed.
new KeyboardManager(widget_, window_manager_.get(), node);
widget_->Show();
textfield->RequestFocus();
}
// ViewManagerDelegate:
virtual void OnEmbed(ViewManager* view_manager, Node* root) OVERRIDE {
// TODO: deal with OnEmbed() being invoked multiple times.
view_manager_ = view_manager;
root_ = root;
root_->AddObserver(this);
root_->SetActiveView(View::Create(view_manager));
root_->SetFocus();
CreateWidget(root_);
}
virtual void OnViewManagerDisconnected(
ViewManager* view_manager) OVERRIDE {
DCHECK_EQ(view_manager_, view_manager);
view_manager_ = NULL;
base::MessageLoop::current()->Quit();
}
// views::TextfieldController:
virtual bool HandleKeyEvent(views::Textfield* sender,
const ui::KeyEvent& key_event) OVERRIDE {
if (key_event.key_code() == ui::VKEY_RETURN) {
GURL url(sender->text());
printf("User entered this URL: %s\n", url.spec().c_str());
NavigationDetailsPtr nav_details(NavigationDetails::New());
nav_details->url = String::From(url);
navigator_host_->RequestNavigate(view_manager_->GetRoots().front()->id(),
TARGET_NEW_NODE,
nav_details.Pass());
}
return false;
}
// NodeObserver:
virtual void OnNodeFocusChanged(Node* gained_focus,
Node* lost_focus) OVERRIDE {
aura::client::FocusClient* focus_client =
aura::client::GetFocusClient(widget_->GetNativeView());
if (lost_focus == root_)
focus_client->FocusWindow(NULL);
else if (gained_focus == root_)
focus_client->FocusWindow(widget_->GetNativeView());
}
virtual void OnNodeDestroyed(Node* node) OVERRIDE {
DCHECK_EQ(root_, node);
node->RemoveObserver(this);
root_ = NULL;
}
scoped_ptr<ViewsInit> views_init_;
ViewManager* view_manager_;
ViewManagerClientFactory view_manager_client_factory_;
Node* root_;
views::Widget* widget_;
NavigatorHostPtr navigator_host_;
IWindowManagerPtr window_manager_;
DISALLOW_COPY_AND_ASSIGN(Browser);
};
} // namespace examples
// static
ApplicationDelegate* ApplicationDelegate::Create() {
return new examples::Browser;
}
} // namespace mojo
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