WebKit/win/WebHistory.h
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     1 /*
       
     2  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
       
     3  *
       
     4  * Redistribution and use in source and binary forms, with or without
       
     5  * modification, are permitted provided that the following conditions
       
     6  * are met:
       
     7  * 1. Redistributions of source code must retain the above copyright
       
     8  *    notice, this list of conditions and the following disclaimer.
       
     9  * 2. Redistributions in binary form must reproduce the above copyright
       
    10  *    notice, this list of conditions and the following disclaimer in the
       
    11  *    documentation and/or other materials provided with the distribution.
       
    12  *
       
    13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
       
    14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
       
    15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
       
    16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
       
    17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
       
    18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
       
    19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
       
    20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
       
    21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
       
    22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
       
    23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
       
    24  */
       
    25 
       
    26 #ifndef WebHistory_H
       
    27 #define WebHistory_H
       
    28 
       
    29 #include "WebKit.h"
       
    30 
       
    31 #include "COMPtr.h"
       
    32 #include <CoreFoundation/CoreFoundation.h>
       
    33 #include <wtf/OwnArrayPtr.h>
       
    34 #include <wtf/RetainPtr.h>
       
    35 
       
    36 namespace WebCore {
       
    37     class KURL;
       
    38     class PageGroup;
       
    39     class String;
       
    40 }
       
    41 
       
    42 //-----------------------------------------------------------------------------
       
    43 
       
    44 class WebPreferences;
       
    45 
       
    46 class WebHistory : public IWebHistory, public IWebHistoryPrivate {
       
    47 public:
       
    48     static WebHistory* createInstance();
       
    49 private:
       
    50     WebHistory();
       
    51     ~WebHistory();
       
    52 
       
    53 public:
       
    54     // IUnknown
       
    55     virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);
       
    56     virtual ULONG STDMETHODCALLTYPE AddRef(void);
       
    57     virtual ULONG STDMETHODCALLTYPE Release(void);
       
    58 
       
    59     // IWebHistory
       
    60     virtual HRESULT STDMETHODCALLTYPE optionalSharedHistory( 
       
    61         /* [retval][out] */ IWebHistory** history);
       
    62     
       
    63     virtual HRESULT STDMETHODCALLTYPE setOptionalSharedHistory( 
       
    64         /* [in] */ IWebHistory* history);
       
    65     
       
    66     virtual HRESULT STDMETHODCALLTYPE loadFromURL( 
       
    67         /* [in] */ BSTR url,
       
    68         /* [out] */ IWebError** error,
       
    69         /* [retval][out] */ BOOL* succeeded);
       
    70     
       
    71     virtual HRESULT STDMETHODCALLTYPE saveToURL( 
       
    72         /* [in] */ BSTR url,
       
    73         /* [out] */ IWebError** error,
       
    74         /* [retval][out] */ BOOL* succeeded);
       
    75     
       
    76     virtual HRESULT STDMETHODCALLTYPE addItems( 
       
    77         /* [in] */ int itemCount,
       
    78         /* [in] */ IWebHistoryItem** items);
       
    79     
       
    80     virtual HRESULT STDMETHODCALLTYPE removeItems( 
       
    81         /* [in] */ int itemCount,
       
    82         /* [in] */ IWebHistoryItem** items);
       
    83     
       
    84     virtual HRESULT STDMETHODCALLTYPE removeAllItems( void);
       
    85     
       
    86     virtual HRESULT STDMETHODCALLTYPE orderedLastVisitedDays( 
       
    87         /* [out][in] */ int* count,
       
    88         /* [in] */ DATE* calendarDates);
       
    89     
       
    90     virtual HRESULT STDMETHODCALLTYPE orderedItemsLastVisitedOnDay( 
       
    91         /* [out][in] */ int* count,
       
    92         /* [in] */ IWebHistoryItem** items,
       
    93         /* [in] */ DATE calendarDate);
       
    94 
       
    95     virtual HRESULT STDMETHODCALLTYPE itemForURL( 
       
    96         /* [in] */ BSTR url,
       
    97         /* [retval][out] */ IWebHistoryItem** item);
       
    98     
       
    99     virtual HRESULT STDMETHODCALLTYPE setHistoryItemLimit( 
       
   100         /* [in] */ int limit);
       
   101     
       
   102     virtual HRESULT STDMETHODCALLTYPE historyItemLimit( 
       
   103         /* [retval][out] */ int* limit);
       
   104     
       
   105     virtual HRESULT STDMETHODCALLTYPE setHistoryAgeInDaysLimit( 
       
   106         /* [in] */ int limit);
       
   107     
       
   108     virtual HRESULT STDMETHODCALLTYPE historyAgeInDaysLimit( 
       
   109         /* [retval][out] */ int* limit);
       
   110 
       
   111     // IWebHistoryPrivate
       
   112 
       
   113     virtual HRESULT STDMETHODCALLTYPE allItems( 
       
   114         /* [out][in] */ int* count,
       
   115         /* [retval][out] */ IWebHistoryItem** items);
       
   116 
       
   117     virtual HRESULT STDMETHODCALLTYPE data(IStream**);
       
   118 
       
   119     virtual HRESULT STDMETHODCALLTYPE setVisitedLinkTrackingEnabled(BOOL visitedLinkTrackingEnable);
       
   120     virtual HRESULT STDMETHODCALLTYPE removeAllVisitedLinks();
       
   121 
       
   122     // WebHistory
       
   123     static WebHistory* sharedHistory();
       
   124     void visitedURL(const WebCore::KURL&, const WebCore::String& title, const WebCore::String& httpMethod, bool wasFailure, bool increaseVisitCount);
       
   125     void addVisitedLinksToPageGroup(WebCore::PageGroup&);
       
   126 
       
   127     COMPtr<IWebHistoryItem> itemForURLString(const WebCore::String&) const;
       
   128 
       
   129     typedef int64_t DateKey;
       
   130     typedef HashMap<DateKey, RetainPtr<CFMutableArrayRef> > DateToEntriesMap;
       
   131 
       
   132 private:
       
   133 
       
   134     enum NotificationType
       
   135     {
       
   136         kWebHistoryItemsAddedNotification = 0,
       
   137         kWebHistoryItemsRemovedNotification = 1,
       
   138         kWebHistoryAllItemsRemovedNotification = 2,
       
   139         kWebHistoryLoadedNotification = 3,
       
   140         kWebHistoryItemsDiscardedWhileLoadingNotification = 4,
       
   141         kWebHistorySavedNotification = 5
       
   142     };
       
   143 
       
   144     HRESULT loadHistoryGutsFromURL(CFURLRef url, CFMutableArrayRef discardedItems, IWebError** error);
       
   145     HRESULT saveHistoryGuts(CFURLRef url, IWebError** error);
       
   146     HRESULT postNotification(NotificationType notifyType, IPropertyBag* userInfo = 0);
       
   147     HRESULT removeItem(IWebHistoryItem* entry);
       
   148     HRESULT addItem(IWebHistoryItem* entry, bool discardDuplicate, bool* added);
       
   149     HRESULT removeItemForURLString(CFStringRef urlString);
       
   150     HRESULT addItemToDateCaches(IWebHistoryItem* entry);
       
   151     HRESULT removeItemFromDateCaches(IWebHistoryItem* entry);
       
   152     HRESULT insertItem(IWebHistoryItem* entry, DateKey);
       
   153     HRESULT ageLimitDate(CFAbsoluteTime* time);
       
   154     bool findKey(DateKey*, CFAbsoluteTime forDay);
       
   155     static CFAbsoluteTime timeToDate(CFAbsoluteTime time);
       
   156     BSTR getNotificationString(NotificationType notifyType);
       
   157     HRESULT itemForURLString(CFStringRef urlString, IWebHistoryItem** item) const;
       
   158     RetainPtr<CFDataRef> data() const;
       
   159 
       
   160     ULONG m_refCount;
       
   161     RetainPtr<CFMutableDictionaryRef> m_entriesByURL;
       
   162     DateToEntriesMap m_entriesByDate;
       
   163     OwnArrayPtr<DATE> m_orderedLastVisitedDays;
       
   164     COMPtr<WebPreferences> m_preferences;
       
   165 };
       
   166 
       
   167 #endif