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      1 // Copyright (c) 2010 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_PAGE_INFO_MODEL_H_
      6 #define CHROME_BROWSER_PAGE_INFO_MODEL_H_
      7 #pragma once
      8 
      9 #include <vector>
     10 
     11 #include "base/string16.h"
     12 #include "chrome/browser/history/history.h"
     13 #include "content/browser/cancelable_request.h"
     14 #include "content/browser/tab_contents/navigation_entry.h"
     15 #include "googleurl/src/gurl.h"
     16 #include "ui/gfx/image.h"
     17 
     18 class PrefService;
     19 class Profile;
     20 
     21 // The model that provides the information that should be displayed in the page
     22 // info dialog/bubble.
     23 class PageInfoModel {
     24  public:
     25   class PageInfoModelObserver {
     26    public:
     27     virtual ~PageInfoModelObserver() {}
     28 
     29     virtual void ModelChanged() = 0;
     30   };
     31 
     32   enum SectionInfoType {
     33     SECTION_INFO_IDENTITY = 0,
     34     SECTION_INFO_CONNECTION,
     35     SECTION_INFO_FIRST_VISIT,
     36   };
     37 
     38   // NOTE: ICON_STATE_OK ... ICON_STATE_ERROR must be listed in increasing
     39   // order of severity.  Code may depend on this order.
     40   enum SectionStateIcon {
     41     // No icon.
     42     ICON_NONE = -1,
     43     // State is OK.
     44     ICON_STATE_OK,
     45     // For example, if state is OK but contains mixed content.
     46     ICON_STATE_WARNING_MINOR,
     47     // For example, if content was served over HTTP.
     48     ICON_STATE_WARNING_MAJOR,
     49     // For example, unverified identity over HTTPS.
     50     ICON_STATE_ERROR,
     51     // An information icon.
     52     ICON_STATE_INFO
     53   };
     54 
     55   struct SectionInfo {
     56     SectionInfo(SectionStateIcon icon_id,
     57                 const string16& headline,
     58                 const string16& description,
     59                 SectionInfoType type)
     60         : icon_id(icon_id),
     61           headline(headline),
     62           description(description),
     63           type(type) {
     64     }
     65 
     66     // The overall state of the connection (error, warning, ok).
     67     SectionStateIcon icon_id;
     68 
     69     // A single line describing the section, optional.
     70     string16 headline;
     71 
     72     // The full description of what this section is.
     73     string16 description;
     74 
     75     // The type of SectionInfo we are dealing with, for example: Identity,
     76     // Connection, First Visit.
     77     SectionInfoType type;
     78   };
     79 
     80   PageInfoModel(Profile* profile,
     81                 const GURL& url,
     82                 const NavigationEntry::SSLStatus& ssl,
     83                 bool show_history,
     84                 PageInfoModelObserver* observer);
     85   ~PageInfoModel();
     86 
     87   int GetSectionCount();
     88   SectionInfo GetSectionInfo(int index);
     89 
     90   // Returns the native image type for an icon with the given id.
     91   gfx::Image* GetIconImage(SectionStateIcon icon_id);
     92 
     93   // Callback from history service with number of visits to url.
     94   void OnGotVisitCountToHost(HistoryService::Handle handle,
     95                              bool found_visits,
     96                              int count,
     97                              base::Time first_visit);
     98 
     99  protected:
    100   // Testing constructor. DO NOT USE.
    101   PageInfoModel();
    102 
    103   // Shared initialization for default and testing constructor.
    104   void Init();
    105 
    106   PageInfoModelObserver* observer_;
    107 
    108   std::vector<SectionInfo> sections_;
    109 
    110   // All possible icons that go next to the text descriptions to indicate state.
    111   std::vector<gfx::Image*> icons_;
    112 
    113   // Used to request number of visits.
    114   CancelableRequestConsumer request_consumer_;
    115 
    116  private:
    117   DISALLOW_COPY_AND_ASSIGN(PageInfoModel);
    118 };
    119 
    120 #endif  // CHROME_BROWSER_PAGE_INFO_MODEL_H_
    121