chrome/browser/notifications/balloon_host.h

   1 // Copyright (c) 2012 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 #ifndef CHROME_BROWSER_NOTIFICATIONS_BALLOON_HOST_H_
   6 #define CHROME_BROWSER_NOTIFICATIONS_BALLOON_HOST_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "chrome/browser/extensions/extension_function_dispatcher.h"
  14 #include "content/public/browser/notification_registrar.h"
  15 #include "content/public/browser/web_contents_delegate.h"
  16 #include "content/public/browser/web_contents_observer.h"
  17
  18 class Balloon;
  19 class Browser;
  20
  21 namespace content {
  22 class SiteInstance;
  23 };
  24
  25 class BalloonHost : public content::WebContentsDelegate,
  26                     public content::WebContentsObserver,
  27                     public ExtensionFunctionDispatcher::Delegate {
  28  public:
  29   explicit BalloonHost(Balloon* balloon);
  30
  31   // Initialize the view.
  32   void Init();
  33
  34   // Stops showing the balloon.
  35   void Shutdown();
  36
  37   // ExtensionFunctionDispatcher::Delegate overrides.
  38   virtual extensions::WindowController* GetExtensionWindowController()
  39       const OVERRIDE;
  40   virtual content::WebContents* GetAssociatedWebContents() const OVERRIDE;
  41
  42   const base::string16& GetSource() const;
  43
  44   content::WebContents* web_contents() const { return web_contents_.get(); }
  45
  46   // Enable Web UI. This has to be called before renderer is created.
  47   void EnableWebUI();
  48
  49   // Returns whether the associated render view is ready. Used only for testing.
  50   bool IsRenderViewReady() const;
  51
  52   // content::WebContentsDelegate implementation:
  53   virtual bool CanLoadDataURLsInWebUI() const OVERRIDE;
  54
  55  protected:
  56   virtual ~BalloonHost();
  57
  58   scoped_ptr<content::WebContents> web_contents_;
  59
  60  private:
  61   // content::WebContentsDelegate implementation:
  62   virtual void CloseContents(content::WebContents* source) OVERRIDE;
  63   virtual void HandleMouseDown() OVERRIDE;
  64   virtual void ResizeDueToAutoResize(content::WebContents* source,
  65                                      const gfx::Size& pref_size) OVERRIDE;
  66   virtual void AddNewContents(content::WebContents* source,
  67                               content::WebContents* new_contents,
  68                               WindowOpenDisposition disposition,
  69                               const gfx::Rect& initial_pos,
  70                               bool user_gesture,
  71                               bool* was_blocked) OVERRIDE;
  72
  73   // content::WebContentsObserver implementation:
  74   virtual void RenderViewCreated(
  75       content::RenderViewHost* render_view_host) OVERRIDE;
  76   virtual void RenderViewReady() OVERRIDE;
  77   virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE;
  78   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
  79
  80   // Message handlers
  81   void OnRequest(const ExtensionHostMsg_Request_Params& params);
  82
  83   // Called to send an event that the balloon has been disconnected from
  84   // a renderer (if should_notify_on_disconnect_ is true).
  85   void NotifyDisconnect();
  86
  87   // Non-owned pointer to the associated balloon.
  88   Balloon* balloon_;
  89
  90   // True after Init() has completed.
  91   bool initialized_;
  92
  93   // Indicates whether we should notify about disconnection of this balloon.
  94   // This is used to ensure disconnection notifications only happen if
  95   // a connection notification has happened and that they happen only once.
  96   bool should_notify_on_disconnect_;
  97
  98   // Site instance for the balloon/profile, to be used for opening new links.
  99   scoped_refptr<content::SiteInstance> site_instance_;
 100
 101   // A flag to enable Web UI.
 102   bool enable_web_ui_;
 103
 104   ExtensionFunctionDispatcher extension_function_dispatcher_;
 105 };
 106
 107 #endif  // CHROME_BROWSER_NOTIFICATIONS_BALLOON_HOST_H_