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      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_NOTIFICATION_H_
      6 #define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_H_
      7 
      8 #include <string>
      9 
     10 #include "base/basictypes.h"
     11 #include "base/memory/scoped_ptr.h"
     12 #include "base/strings/string16.h"
     13 #include "base/values.h"
     14 #include "chrome/browser/notifications/notification_delegate.h"
     15 #include "third_party/WebKit/public/web/WebTextDirection.h"
     16 #include "ui/gfx/image/image.h"
     17 #include "ui/message_center/notification.h"
     18 #include "ui/message_center/notification_types.h"
     19 #include "url/gurl.h"
     20 
     21 // Representation of a notification to be shown to the user.
     22 // On non-Ash platforms these are rendered as HTML, sometimes described by a
     23 // data url converted from text + icon data. On Ash they are rendered as
     24 // formated text and icon data.
     25 class Notification : public message_center::Notification {
     26  public:
     27   // Initializes a notification with HTML content.
     28   Notification(const GURL& origin_url,
     29                const GURL& content_url,
     30                const string16& display_source,
     31                const string16& replace_id,
     32                NotificationDelegate* delegate);
     33 
     34   // Initializes a notification with text content. On non-ash platforms, this
     35   // creates an HTML representation using a data: URL for display.
     36   Notification(const GURL& origin_url,
     37                const GURL& icon_url,
     38                const string16& title,
     39                const string16& body,
     40                WebKit::WebTextDirection dir,
     41                const string16& display_source,
     42                const string16& replace_id,
     43                NotificationDelegate* delegate);
     44 
     45   // Initializes a notification with text content and an icon image. Currently
     46   // only used on Ash. Does not generate content_url_.
     47   Notification(const GURL& origin_url,
     48                const gfx::Image& icon,
     49                const string16& title,
     50                const string16& body,
     51                WebKit::WebTextDirection dir,
     52                const string16& display_source,
     53                const string16& replace_id,
     54                NotificationDelegate* delegate);
     55 
     56   Notification(
     57       message_center::NotificationType type,
     58       const GURL& origin_url,
     59       const string16& title,
     60       const string16& body,
     61       const gfx::Image& icon,
     62       WebKit::WebTextDirection dir,
     63       const string16& display_source,
     64       const string16& replace_id,
     65       const message_center::RichNotificationData& rich_notification_data,
     66       NotificationDelegate* delegate);
     67 
     68   Notification(const Notification& notification);
     69   virtual ~Notification();
     70   Notification& operator=(const Notification& notification);
     71 
     72   // If this is a HTML notification.
     73   bool is_html() const { return is_html_; }
     74 
     75   // The URL (may be data:) containing the contents for the notification.
     76   const GURL& content_url() const { return content_url_; }
     77 
     78   // The origin URL of the script which requested the notification.
     79   const GURL& origin_url() const { return origin_url_; }
     80 
     81   // A url for the icon to be shown (optional).
     82   const GURL& icon_url() const { return icon_url_; }
     83 
     84   // A unique identifier used to update (replace) or remove a notification.
     85   const string16& replace_id() const { return replace_id_; }
     86 
     87   // A url for the button icons to be shown (optional).
     88   const GURL& button_one_icon_url() const { return button_one_icon_url_; }
     89   const GURL& button_two_icon_url() const { return button_two_icon_url_; }
     90 
     91   // A url for the image to be shown (optional).
     92   const GURL& image_url() const { return image_url_; }
     93 
     94   std::string notification_id() const { return delegate()->id(); }
     95   int process_id() const { return delegate()->process_id(); }
     96 
     97   content::RenderViewHost* GetRenderViewHost() const {
     98     return delegate()->GetRenderViewHost();
     99   }
    100   void DoneRendering() { delegate()->ReleaseRenderViewHost(); }
    101 
    102   NotificationDelegate* delegate() const { return delegate_.get(); }
    103 
    104  private:
    105   // The Origin of the page/worker which created this notification.
    106   GURL origin_url_;
    107 
    108   // URL for the icon associated with the notification. Requires delegate_
    109   // to have a non NULL RenderViewHost.
    110   GURL icon_url_;
    111 
    112   // If this is a HTML notification, the content is in |content_url_|. If
    113   // false, the data is in |title_| and |message_|.
    114   bool is_html_;
    115 
    116   // The URL of the HTML content of the toast (may be a data: URL for simple
    117   // string-based notifications).
    118   GURL content_url_;
    119 
    120   // The URLs of the button images for a rich notification.
    121   GURL button_one_icon_url_;
    122   GURL button_two_icon_url_;
    123 
    124   // The URL of a large image to be displayed for a a rich notification.
    125   GURL image_url_;
    126 
    127   // The user-supplied replace ID for the notification.
    128   string16 replace_id_;
    129 
    130   // A proxy object that allows access back to the JavaScript object that
    131   // represents the notification, for firing events.
    132   scoped_refptr<NotificationDelegate> delegate_;
    133 };
    134 
    135 #endif  // CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_H_
    136