Fix for bug # 99624 r=chak sr=alecf.. freeze nsISHistorylistener as per new freezing guidelines

This commit is contained in:
radha%netscape.com 2001-10-02 04:29:19 +00:00
Родитель 7e8ecbcca7
Коммит d0648dcec2
1 изменённых файлов: 100 добавлений и 10 удалений

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@ -25,10 +25,13 @@ interface nsIURI;
/**
* nsISHistoryListener defines an interface for an object to receive
* notifications about activities in History. A History listener will be
* notified about page additions,back,forward,goto traversals thro'
* Session history
* nsISHistoryListener defines the interface for an object that wishes
* to receive notifications about activities in History. A history
* listener will be notified when pages are added, removed and loaded
* from session history. A listener to session history can be registered
* using the interface nsISHistory.
*
* @status FROZEN
*/
%{C++
#define NS_SHISTORYLISTENER_CONTRACTID "@mozilla.org/browser/shistorylistener;1"
@ -41,32 +44,119 @@ interface nsISHistoryListener : nsISupports
{
/**
* Notify when a new page is added to History
* called to notify a listener when a new document is
* added to session history. New documents are added to
* session history by docshell when new pages are loaded
* in a frame or content area.
*
* @param aNewURI The uri of the document to be added to session history
*
* @return <CODE>NS_OK</CODE> notification sent out successfully
*/
void OnHistoryNewEntry(in nsIURI aNewURI);
/**
* Notification for going back with an option to cancel the operation
* called to notify a listener when the user presses the 'back' button
* of the browser OR when the user attempts to go back one page
* in history thro' other means, from javascript or using nsIWebNavigation
*
* @param aBackURI The uri of the previous page which is to be
* loaded.
*
* @return aReturn A boolean flag returned by the listener to
* indicate if the back operation is to be aborted
* or continued. If the listener returns 'true', it indicates
* that the back operation can be continued. If the listener
* returns 'false', then the back operation will be aborted.
* This is a mechanism for the listener to control user's
* operations with history.
*
*/
boolean OnHistoryGoBack(in nsIURI aBackURI);
/**
* Notification for going forward with an option to cancel the operation
* called to notify a listener when the user presses the 'forward' button
* of the browser OR when the user attempts to go forward one page
* in history thro' other means, from javascript or using nsIWebNavigation
*
* @param aForwardURI The uri of the next page which is to be
* loaded.
*
* @return aReturn A boolean flag returned by the listener to
* indicate if the forward operation is to be aborted
* or continued. If the listener returns 'true', it indicates
* that the forward operation can be continued. If the listener
* returns 'false', then the forward operation will be aborted.
* This is a mechanism for the listener to control user's
* operations with history.
*
*/
boolean OnHistoryGoForward(in nsIURI aForwardURI);
/**
* Notification for Reload with an option to cancel
* called to notify a listener when the user presses the 'reload' button
* of the browser OR when the user attempts to reload the current document
* through other means, like from javascript or using nsIWebNavigation
*
* @param aReloadURI The uri of the current document to be reloaded.
* @param aReloadFlags Flags that indicate how the document is to be
* refreshed. For example, from cache or bypassing
* cache and/or Proxy server.
* @return aReturn A boolean flag returned by the listener to indicate
* if the reload operation is to be aborted or continued.
* If the listener returns 'true', it indicates that the
* reload operation can be continued. If the listener
* returns 'false', then the reload operation will be aborted.
* This is a mechanism for the listener to control user's
* operations with history.
* @see nsIWebNavigation
*
*/
boolean OnHistoryReload(in nsIURI aReloadURI, in unsigned long aReloadFlags);
/**
* Notify while going to an particular index with an option to cancel
* called to notify a listener when the user visits a page using the 'Go' menu
* of the browser OR when the user attempts to go to a page at a particular index
* through other means, like from javascript or using nsIWebNavigation
*
* @param aIndex The index in history of the document to be loaded.
* @param aGotoURI The uri of the document to be loaded.
*
* @return aReturn A boolean flag returned by the listener to
* indicate if the GotoIndex operation is to be aborted
* or continued. If the listener returns 'true', it indicates
* that the GotoIndex operation can be continued. If the listener
* returns 'false', then the GotoIndex operation will be aborted.
* This is a mechanism for the listener to control user's
* operations with history.
*
*/
boolean OnHistoryGotoIndex(in long aIndex, in nsIURI aGotoURI);
/**
* Notify when History is about to be trimmed with an option to cancel
* called to notify a listener when documents are removed from session
* history. Documents can be removed from session history for various
* reasons. For example to control the memory usage of the browser, to
* prevent users from loading documents from history, to erase evidence of
* prior page loads etc... To purge documents from session history call
* nsISHistory::PurgeHistory()
*
* @param aNumEntries The number of documents to be removed from session history.
*
* @return aReturn A boolean flag returned by the listener to
* indicate if the purge operation is to be aborted
* or continued. If the listener returns 'true', it indicates
* that the purge operation can be continued. If the listener
* returns 'false', then the purge operation will be aborted.
* This is a mechanism for the listener to control user's
* operations with history.
*
* @note While purging history, the older documents are removed
* and newly loaded documents are kept. For example if there
* are 5 documents in history, and nsISHistory::PurgeHistory(3)
* is called, then, document 1, 2 and 3 are removed from history
* and most recently loaded document 4 and 5 are kept.
*
*/
boolean OnHistoryPurge(in long aNumEntries);
};