text: // Copyright (c) 2012 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 CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_
  #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_
  
  #include "base/logging.h"
  #include "base/memory/ref_counted.h"
  #include "content/public/browser/notification_observer.h"
  #include "content/public/browser/notification_registrar.h"
  #include "ui/views/window/dialog_delegate.h"
  
  class ExtensionDialogObserver;
  class GURL;
  class Profile;
  
  namespace content {
  class WebContents;
  }
  
  namespace extensions {
  class ExtensionViewHost;
  }
  
  namespace ui {
  class BaseWindow;
  }
  
  // Modal dialog containing contents provided by an extension.
  // Dialog is automatically centered in the owning window and has fixed size.
  // For example, used by the Chrome OS file browser.
  class ExtensionDialog : public views::DialogDelegate,
                          public content::NotificationObserver,
                          public base::RefCounted<ExtensionDialog> {
   public:
    // Create and show a dialog with |url| centered over the provided window.
    // |base_window| is the window to which the pop-up will be attached.
    // |profile| is the profile that the extension is registered with.
    // |web_contents| is the tab that spawned the dialog.
    // |width| and |height| are the size of the dialog in pixels.
    static ExtensionDialog* Show(const GURL& url,
                                 ui::BaseWindow* base_window,
                                 Profile* profile,
                                 content::WebContents* web_contents,
                                 int width,
                                 int height,
                                 int min_width,
                                 int min_height,
                                 const base::string16& title,
                                 ExtensionDialogObserver* observer);
  
    // Notifies the dialog that the observer has been destroyed and should not
    // be sent notifications.
    void ObserverDestroyed();
  
    // Focus to the render view if possible.
    void MaybeFocusRenderView();
  
    // Sets the window title.
    void set_title(const base::string16& title) { window_title_ = title; }
  
    // Sets minimum contents size in pixels and makes the window resizable.
    void SetMinimumContentsSize(int width, int height);
  
    extensions::ExtensionViewHost* host() const { return host_.get(); }
  
    // views::DialogDelegate override.
    virtual int GetDialogButtons() const OVERRIDE;
    virtual bool CanResize() const OVERRIDE;
    virtual ui::ModalType GetModalType() const OVERRIDE;
    virtual bool ShouldShowWindowTitle() const OVERRIDE;
    virtual base::string16 GetWindowTitle() const OVERRIDE;
    virtual void WindowClosing() OVERRIDE;
    virtual void DeleteDelegate() OVERRIDE;
    virtual views::Widget* GetWidget() OVERRIDE;
    virtual const views::Widget* GetWidget() const OVERRIDE;
    virtual views::View* GetContentsView() OVERRIDE;
    virtual bool UseNewStyleForThisDialog() const OVERRIDE;
  
    // content::NotificationObserver overrides.
    virtual void Observe(int type,
                         const content::NotificationSource& source,
                         const content::NotificationDetails& details) OVERRIDE;
  
   protected:
    virtual ~ExtensionDialog();
  
   private:
    friend class base::RefCounted<ExtensionDialog>;
  
    // Use Show() to create instances.
    ExtensionDialog(extensions::ExtensionViewHost* host,
                    ExtensionDialogObserver* observer);
  
    void InitWindow(ui::BaseWindow* base_window, int width, int height);
  
    // Window Title
    base::string16 window_title_;
  
    // The contained host for the view.
    scoped_ptr<extensions::ExtensionViewHost> host_;
  
    content::NotificationRegistrar registrar_;
  
    // The observer of this popup.
    ExtensionDialogObserver* observer_;
  
    DISALLOW_COPY_AND_ASSIGN(ExtensionDialog);
  };
  
  #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_
  