mojo/examples/browser/browser.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/basictypes.h"
   6 #include "base/strings/string_util.h"
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "mojo/public/cpp/application/application.h"
   9 #include "mojo/services/public/cpp/view_manager/node.h"
  10 #include "mojo/services/public/cpp/view_manager/view.h"
  11 #include "mojo/services/public/cpp/view_manager/view_manager.h"
  12 #include "mojo/services/public/cpp/view_manager/view_manager_delegate.h"
  13 #include "mojo/services/public/cpp/view_manager/view_observer.h"
  14 #include "mojo/services/public/interfaces/navigation/navigation.mojom.h"
  15 #include "mojo/views/native_widget_view_manager.h"
  16 #include "mojo/views/views_init.h"
  17 #include "ui/events/event.h"
  18 #include "ui/views/controls/textfield/textfield.h"
  19 #include "ui/views/controls/textfield/textfield_controller.h"
  20 #include "ui/views/layout/layout_manager.h"
  21 #include "ui/views/widget/widget.h"
  22 #include "ui/views/widget/widget_delegate.h"
  23 #include "url/gurl.h"
  24
  25 namespace mojo {
  26 namespace examples {
  27
  28 class BrowserLayoutManager : public views::LayoutManager {
  29  public:
  30   BrowserLayoutManager() {}
  31   virtual ~BrowserLayoutManager() {}
  32
  33  private:
  34   // Overridden from views::LayoutManager:
  35   virtual void Layout(views::View* host) OVERRIDE {
  36     // Browser view has one child, a text input field.
  37     DCHECK_EQ(1, host->child_count());
  38     views::View* text_field = host->child_at(0);
  39     gfx::Size ps = text_field->GetPreferredSize();
  40     text_field->SetBoundsRect(gfx::Rect(host->width(), ps.height()));
  41   }
  42   virtual gfx::Size GetPreferredSize(const views::View* host) const OVERRIDE {
  43     return gfx::Size();
  44   }
  45
  46   DISALLOW_COPY_AND_ASSIGN(BrowserLayoutManager);
  47 };
  48
  49 // This is the basics of creating a views widget with a textfield.
  50 // TODO: cleanup!
  51 class Browser : public Application,
  52                 public view_manager::ViewManagerDelegate,
  53                 public views::TextfieldController {
  54  public:
  55   Browser() : view_manager_(NULL) {}
  56
  57   virtual ~Browser() {
  58   }
  59
  60  private:
  61   // Overridden from Application:
  62   virtual void Initialize() MOJO_OVERRIDE {
  63     views_init_.reset(new ViewsInit);
  64     view_manager::ViewManager::Create(this, this);
  65     ConnectTo("mojo:mojo_window_manager", &navigator_host_);
  66   }
  67
  68   void CreateWidget(view_manager::Node* node) {
  69     views::Textfield* textfield = new views::Textfield;
  70     textfield->set_controller(this);
  71
  72     views::WidgetDelegateView* widget_delegate = new views::WidgetDelegateView;
  73     widget_delegate->GetContentsView()->AddChildView(textfield);
  74     widget_delegate->GetContentsView()->SetLayoutManager(
  75         new BrowserLayoutManager);
  76
  77     views::Widget* widget = new views::Widget;
  78     views::Widget::InitParams params(
  79         views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
  80     params.native_widget = new NativeWidgetViewManager(widget, node);
  81     params.delegate = widget_delegate;
  82     params.bounds = gfx::Rect(node->bounds().width(), node->bounds().height());
  83     widget->Init(params);
  84     widget->Show();
  85     textfield->RequestFocus();
  86   }
  87
  88   // view_manager::ViewManagerDelegate:
  89   virtual void OnRootAdded(view_manager::ViewManager* view_manager,
  90                            view_manager::Node* root) OVERRIDE {
  91     // TODO: deal with OnRootAdded() being invoked multiple times.
  92     view_manager_ = view_manager;
  93     root->SetActiveView(view_manager::View::Create(view_manager));
  94     root->SetFocus();
  95     CreateWidget(root);
  96   }
  97
  98   // views::TextfieldController:
  99   virtual bool HandleKeyEvent(views::Textfield* sender,
 100                               const ui::KeyEvent& key_event) OVERRIDE {
 101     if (key_event.key_code() == ui::VKEY_RETURN) {
 102       GURL url(sender->text());
 103       printf("User entered this URL: %s\n", url.spec().c_str());
 104       navigation::NavigationDetailsPtr nav_details(
 105           navigation::NavigationDetails::New());
 106       nav_details->url = url.spec();
 107       navigator_host_->RequestNavigate(view_manager_->GetRoots().front()->id(),
 108                                        navigation::NEW_NODE,
 109                                        nav_details.Pass());
 110     }
 111     return false;
 112   }
 113
 114   scoped_ptr<ViewsInit> views_init_;
 115
 116   view_manager::ViewManager* view_manager_;
 117   navigation::NavigatorHostPtr navigator_host_;
 118
 119   DISALLOW_COPY_AND_ASSIGN(Browser);
 120 };
 121
 122 }  // namespace examples
 123
 124 // static
 125 Application* Application::Create() {
 126   return new examples::Browser;
 127 }
 128
 129 }  // namespace mojo