mandoline: Add back/forward support and UI.

mandoline/ui/desktop_ui/browser_window.h

 // 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.
 
 #ifndef MANDOLINE_UI_DESKTOP_UI_BROWSER_WINDOW_H_
 #define MANDOLINE_UI_DESKTOP_UI_BROWSER_WINDOW_H_
 
 #include "components/view_manager/public/cpp/view_tree_connection.h"
 #include "components/view_manager/public/cpp/view_tree_delegate.h"
 #include "components/view_manager/public/interfaces/view_tree_host.mojom.h"
 #include "components/web_view/public/cpp/web_view.h"
 #include "components/web_view/public/interfaces/web_view.mojom.h"
 #include "mandoline/ui/aura/aura_init.h"
 #include "mandoline/ui/desktop_ui/public/interfaces/omnibox.mojom.h"
 #include "mandoline/ui/desktop_ui/public/interfaces/view_embedder.mojom.h"
 #include "mojo/application/public/cpp/interface_factory.h"
 #include "mojo/common/weak_binding_set.h"
-#include "ui/views/controls/button/button.h"
 #include "ui/views/layout/layout_manager.h"
 #include "url/gurl.h"
 
 namespace mojo {
 class ApplicationConnection;
 class Shell;
 class View;
 }
 
-namespace views {
-class LabelButton;
-}
-
 namespace mandoline {
 
 class BrowserManager;
 class ProgressView;
 
 class BrowserWindow : public mojo::ViewTreeDelegate,
                       public mojo::ViewTreeHostClient,
                       public web_view::mojom::WebViewClient,
                       public ViewEmbedder,
                       public mojo::InterfaceFactory<ViewEmbedder>,
-                      public views::LayoutManager,
-                      public views::ButtonListener {
+                      public views::LayoutManager {
  public:
   BrowserWindow(mojo::ApplicationImpl* app,
                 mojo::ViewTreeHostFactory* host_factory,
                 BrowserManager* manager);
 
   void LoadURL(const GURL& url);
   void Close();
 
  private:
+  class ToolbarView;
+
   ~BrowserWindow() override;
 
   float DIPSToPixels(float value) const;
 
   // Overridden from mojo::ViewTreeDelegate:
   void OnEmbed(mojo::View* root) override;
   void OnConnectionLost(mojo::ViewTreeConnection* connection) override;
 
   // Overridden from ViewTreeHostClient:
   void OnAccelerator(uint32_t id, mojo::EventPtr event) override;
 
   // Overridden from web_view::mojom::WebViewClient:
   void TopLevelNavigate(mojo::URLRequestPtr request) override;
   void LoadingStateChanged(bool is_loading) override;
   void ProgressChanged(double progress) override;
+  void BackForwardChanged(bool back_enabled, bool forward_enabled) override;
   void TitleChanged(const mojo::String& title) override;
 
   // Overridden from ViewEmbedder:
   void Embed(mojo::URLRequestPtr request) override;
 
   // Overridden from mojo::InterfaceFactory<ViewEmbedder>:
   void Create(mojo::ApplicationConnection* connection,
               mojo::InterfaceRequest<ViewEmbedder> request) override;
 
 
   // Overridden from views::LayoutManager:
   gfx::Size GetPreferredSize(const views::View* view) const override;
   void Layout(views::View* host) override;
 
-  // Overridden from views::ButtonListener:
-  void ButtonPressed(views::Button* sender, const ui::Event& event) override;
-
   void Init(mojo::View* root);
   void ShowOmnibox();
+  void GoBack();
+  void GoForward();
   void EmbedOmnibox();
 
   mojo::ApplicationImpl* app_;
   scoped_ptr<AuraInit> aura_init_;
   mojo::ViewTreeHostPtr host_;
   mojo::Binding<ViewTreeHostClient> host_client_binding_;
   BrowserManager* manager_;
-  views::LabelButton* omnibox_launcher_;
+  ToolbarView* toolbar_view_;
   ProgressView* progress_bar_;
   mojo::View* root_;
   mojo::View* content_;
   mojo::View* omnibox_view_;
 
   mojo::WeakBindingSet<ViewEmbedder> view_embedder_bindings_;
 
   GURL default_url_;
   GURL current_url_;
 
   web_view::WebView web_view_;
 
   OmniboxPtr omnibox_;
   scoped_ptr<mojo::ApplicationConnection> omnibox_connection_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserWindow);
 };
 
 }  // namespace mandoline
 
 #endif  // MANDOLINE_UI_DESKTOP_UI_BROWSER_WINDOW_H_