1/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2/* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6/**
7 * Using Places services after quit-application is not reliable, so make
8 * sure to do any shutdown work on quit-application, or history
9 * synchronization could fail, losing latest changes.
10 */
11
12#include "nsISupports.idl"
13
14interface nsIArray;
15interface nsIFile;
16interface nsIObserver;
17interface nsIVariant;
18interface nsIURI;
19
20interface mozIStorageConnection;
21interface mozIStorageStatementCallback;
22interface mozIStoragePendingStatement;
23interface nsIAsyncShutdownClient;
24
25interface nsINavHistoryContainerResultNode;
26interface nsINavHistoryQueryResultNode;
27interface nsINavHistoryQuery;
28interface nsINavHistoryQueryOptions;
29interface nsINavHistoryResult;
30interface nsINavHistoryBatchCallback;
31
32[scriptable, uuid(91d104bb-17ef-404b-9f9a-d9ed8de6824c)]
33interface nsINavHistoryResultNode : nsISupports
34{
35  /**
36   * Indentifies the parent result node in the result set. This is null for
37   * top level nodes.
38   */
39  readonly attribute nsINavHistoryContainerResultNode parent;
40
41  /**
42   * The history-result to which this node belongs.
43   */
44  readonly attribute nsINavHistoryResult parentResult;
45
46  /**
47   * URI of the resource in question. For visits and URLs, this is the URL of
48   * the page. For folders and queries, this is the place: URI of the
49   * corresponding folder or query. This may be empty for other types of
50   * objects like host containers.
51   */
52  readonly attribute AUTF8String uri;
53
54  /**
55   * Identifies the type of this node. This node can then be QI-ed to the
56   * corresponding specialized result node interface.
57   */
58  const unsigned long RESULT_TYPE_URI = 0;               // nsINavHistoryResultNode
59
60  // Visit nodes are deprecated and unsupported.
61  // This line exists just to avoid reusing the value:
62  // const unsigned long RESULT_TYPE_VISIT = 1;
63
64  // Full visit nodes are deprecated and unsupported.
65  // This line exists just to avoid reusing the value:
66  // const unsigned long RESULT_TYPE_FULL_VISIT = 2;
67
68  // Dynamic containers are deprecated and unsupported.
69  // This const exists just to avoid reusing the value:
70  // const unsigned long RESULT_TYPE_DYNAMIC_CONTAINER = 4; // nsINavHistoryContainerResultNode
71
72  const unsigned long RESULT_TYPE_QUERY = 5;             // nsINavHistoryQueryResultNode
73  const unsigned long RESULT_TYPE_FOLDER = 6;            // nsINavHistoryQueryResultNode
74  const unsigned long RESULT_TYPE_SEPARATOR = 7;         // nsINavHistoryResultNode
75  const unsigned long RESULT_TYPE_FOLDER_SHORTCUT = 9;   // nsINavHistoryQueryResultNode
76  readonly attribute unsigned long type;
77
78  /**
79   * Title of the web page, or of the node's query (day, host, folder, etc)
80   */
81  readonly attribute AUTF8String title;
82
83  /**
84   * Total number of times the URI has ever been accessed. For hosts, this
85   * is the total of the children under it, NOT the total times the host has
86   * been accessed (this would require an additional query, so is not given
87   * by default when most of the time it is never needed).
88   */
89  readonly attribute unsigned long accessCount;
90
91  /**
92   * This is the time the user accessed the page.
93   *
94   * If this is a visit, it is the exact time that the page visit occurred.
95   *
96   * If this is a URI, it is the most recent time that the URI was visited.
97   * Even if you ask for all URIs for a given date range long ago, this might
98   * contain today's date if the URI was visited today.
99   *
100   * For hosts, or other node types with children, this is the most recent
101   * access time for any of the children.
102   *
103   * For days queries this is the respective endTime - a maximum possible
104   * visit time to fit in the day range.
105   */
106  readonly attribute PRTime time;
107
108  /**
109   * This URI can be used as an image source URI and will give you the favicon
110   * for the page. It is *not* the URI of the favicon, but rather something
111   * that will resolve to the actual image.
112   *
113   * In most cases, this is an annotation URI that will query the favicon
114   * service. If the entry has no favicon, this is the chrome URI of the
115   * default favicon. If the favicon originally lived in chrome, this will
116   * be the original chrome URI of the icon.
117   */
118  readonly attribute AUTF8String icon;
119
120  /**
121   * This is the number of levels between this node and the top of the
122   * hierarchy. The members of result.children have indentLevel = 0, their
123   * children have indentLevel = 1, etc. The indent level of the root node is
124   * set to -1.
125   */
126  readonly attribute long indentLevel;
127
128  /**
129   * When this item is in a bookmark folder (parent is of type folder), this is
130   * the index into that folder of this node. These indices start at 0 and
131   * increase in the order that they appear in the bookmark folder. For items
132   * that are not in a bookmark folder, this value is -1.
133   */
134  readonly attribute long bookmarkIndex;
135
136  /**
137   * If the node is an item (bookmark, folder or a separator) this value is the
138   * row ID of that bookmark in the database. For other nodes, this value is
139   * set to -1.
140   */
141  readonly attribute long long itemId;
142
143  /**
144   * If the node is an item (bookmark, folder or a separator) this value is the
145   * time that the item was created. For other nodes, this value is 0.
146   */
147  readonly attribute PRTime dateAdded;
148
149  /**
150   * If the node is an item (bookmark, folder or a separator) this value is the
151   * time that the item was last modified. For other nodes, this value is 0.
152   *
153   *  @note When an item is added lastModified is set to the same value as
154   *        dateAdded.
155   */
156  readonly attribute PRTime lastModified;
157
158  /**
159   * For uri nodes, this is a sorted list of the tags, delimited with commans,
160   * for the uri represented by this node. Otherwise this is an empty string.
161   */
162  readonly attribute AString tags;
163
164  /**
165   * The unique ID associated with the page. It my return an empty string
166   * if the result node is a non-URI node.
167   */
168  readonly attribute ACString pageGuid;
169
170  /**
171   * The unique ID associated with the bookmark. It returns an empty string
172   * if the result node is not associated with a bookmark, a folder or a
173   * separator.
174   */
175  readonly attribute ACString bookmarkGuid;
176
177  /**
178   * The unique ID associated with the history visit. For node types other than
179   * history visit nodes, this value is -1.
180   */
181  readonly attribute long long visitId;
182
183  /**
184   * The unique ID associated with visit node which was the referrer of this
185   * history visit. For node types other than history visit nodes, or visits
186   * without any known referrer, this value is -1.
187   */
188  readonly attribute long long fromVisitId;
189
190  /**
191   * The transition type associated with this visit. For node types other than
192   * history visit nodes, this value is 0.
193   */
194  readonly attribute unsigned long visitType;
195};
196
197
198/**
199 * Base class for container results. This includes all types of groupings.
200 * Bookmark folders and places queries will be QueryResultNodes which extends
201 * these items.
202 */
203[scriptable, uuid(3E9CC95F-0D93-45F1-894F-908EEB9866D7)]
204interface nsINavHistoryContainerResultNode : nsINavHistoryResultNode
205{
206
207  /**
208   * Set this to allow descent into the container. When closed, attempting
209   * to call getChildren or childCount will result in an error. You should
210   * set this to false when you are done reading.
211   *
212   * For HOST and DAY groupings, doing this is free since the children have
213   * been precomputed. For queries and bookmark folders, being open means they
214   * will keep themselves up-to-date by listening for updates and re-querying
215   * as needed.
216   */
217  attribute boolean containerOpen;
218
219  /**
220   * Indicates whether the container is closed, loading, or opened.  Loading
221   * implies that the container has been opened asynchronously and has not yet
222   * fully opened.
223   */
224  readonly attribute unsigned short state;
225  const unsigned short STATE_CLOSED = 0;
226  const unsigned short STATE_LOADING = 1;
227  const unsigned short STATE_OPENED = 2;
228
229  /**
230   * This indicates whether this node "may" have children, and can be used
231   * when the container is open or closed. When the container is closed, it
232   * will give you an exact answer if the node can easily be populated (for
233   * example, a bookmark folder). If not (for example, a complex history query),
234   * it will return true. When the container is open, it will always be
235   * accurate. It is intended to be used to see if we should draw the "+" next
236   * to a tree item.
237   */
238  readonly attribute boolean hasChildren;
239
240  /**
241   * This gives you the children of the nodes. It is preferrable to use this
242   * interface over the array one, since it avoids creating an nsIArray object
243   * and the interface is already the correct type.
244   *
245   * @throws NS_ERROR_NOT_AVAILABLE if containerOpen is false.
246   */
247  readonly attribute unsigned long childCount;
248  nsINavHistoryResultNode getChild(in unsigned long aIndex);
249
250  /**
251   * Get the index of a direct child in this container.
252   *
253   * @param aNode
254   *        a result node.
255   *
256   * @return aNode's index in this container.
257   * @throws NS_ERROR_NOT_AVAILABLE if containerOpen is false.
258   * @throws NS_ERROR_INVALID_ARG if aNode isn't a direct child of this
259   * container.
260   */
261  unsigned long getChildIndex(in nsINavHistoryResultNode aNode);
262};
263
264
265/**
266 * Used for places queries and as a base for bookmark folders.
267 *
268 * Note that if you request places to *not* be expanded in the options that
269 * generated this node, this item will report it has no children and never try
270 * to populate itself.
271 */
272[scriptable, uuid(62817759-4FEE-44A3-B58C-3E2F5AFC9D0A)]
273interface nsINavHistoryQueryResultNode : nsINavHistoryContainerResultNode
274{
275  /**
276   * Get the query which builds this node's children.
277   * Only valid for RESULT_TYPE_QUERY nodes.
278   */
279  readonly attribute nsINavHistoryQuery query;
280
281  /**
282   * Get the options which group this node's children.
283   * Only valid for RESULT_TYPE_QUERY nodes.
284   */
285  readonly attribute nsINavHistoryQueryOptions queryOptions;
286
287  /**
288   * For both simple folder queries and folder shortcut queries, this is set to
289   * the concrete itemId of the folder (i.e. for folder shortcuts it's the
290   * target folder id).  Otherwise, this is set to -1.
291   */
292  readonly attribute long long folderItemId;
293
294  /**
295   * For both simple folder queries and folder shortcut queries, this is set to
296   * the concrete guid of the folder (i.e. for folder shortcuts it's the target
297   * folder guid). Otherwise, this is set to an empty string.
298   */
299  readonly attribute ACString targetFolderGuid;
300};
301
302
303/**
304 * Allows clients to observe what is happening to a result as it updates itself
305 * according to history and bookmark system events. Register this observer on a
306 * result using nsINavHistoryResult::addObserver.
307 */
308[scriptable, uuid(f62d8b6b-3c4e-4a9f-a897-db605d0b7a0f)]
309interface nsINavHistoryResultObserver : nsISupports
310{
311  /**
312   * Whether the observer is interested into history details changes.
313   * Those include visits additions and removals. If the observer doesn't
314   * provide this attribute, it will default to true.
315   * In practice, the observer won't receive nodeHistoryDetailsChanged.
316   * Note: this is only read when the observer is added, it cannot be changed
317   * dynamically.
318   */
319  readonly attribute boolean observeHistoryDetails;
320
321  /**
322   * Called when 'aItem' is inserted into 'aParent' at index 'aNewIndex'.
323   * The item previously at index (if any) and everything below it will have
324   * been shifted down by one. The item may be a container or a leaf.
325   */
326  void nodeInserted(in nsINavHistoryContainerResultNode aParent,
327                    in nsINavHistoryResultNode aNode,
328                    in unsigned long aNewIndex);
329
330  /**
331   * Called whan 'aItem' is removed from 'aParent' at 'aOldIndex'. The item
332   * may be a container or a leaf. This function will be called after the item
333   * has been removed from its parent list, but before anything else (including
334   * NULLing out the item's parent) has happened.
335   */
336  void nodeRemoved(in nsINavHistoryContainerResultNode aParent,
337                   in nsINavHistoryResultNode aItem,
338                   in unsigned long aOldIndex);
339
340  /**
341   * Called whan 'aItem' is moved from 'aOldParent' at 'aOldIndex' to
342   * aNewParent at aNewIndex. The item may be a container or a leaf.
343   *
344   * XXX: at the moment, this method is called only when an item is moved
345   * within the same container. When an item is moved between containers,
346   * a new node is created for the item, and the itemRemoved/itemAdded methods
347   * are used.
348   */
349  void nodeMoved(in nsINavHistoryResultNode aNode,
350                 in nsINavHistoryContainerResultNode aOldParent,
351                 in unsigned long aOldIndex,
352                 in nsINavHistoryContainerResultNode aNewParent,
353                 in unsigned long aNewIndex);
354
355  /**
356   * Called right after aNode's title has changed.
357   *
358   * @param aNode
359   *        a result node
360   * @param aNewTitle
361   *        the new title
362   */
363  void nodeTitleChanged(in nsINavHistoryResultNode aNode,
364                        in AUTF8String aNewTitle);
365
366  /**
367   * Called right after aNode's uri property has changed.
368   *
369   * @param aNode
370   *        a result node
371   * @param aNewURI
372   *        the old uri
373   */
374  void nodeURIChanged(in nsINavHistoryResultNode aNode,
375                      in AUTF8String aOldURI);
376
377  /**
378   * Called right after aNode's icon property has changed.
379   *
380   * @param aNode
381   *        a result node
382   *
383   * @note: The new icon is accessible through aNode.icon.
384   */
385  void nodeIconChanged(in nsINavHistoryResultNode aNode);
386
387  /**
388   * Called right after aNode's time property or accessCount property, or both,
389   * have changed.
390   *
391   * @param aNode
392   *        a uri result node
393   * @param aOldVisitDate
394   *        the old visit date
395   * @param aOldAccessCount
396   *        the old access-count
397   */
398  void nodeHistoryDetailsChanged(in nsINavHistoryResultNode aNode,
399                                 in PRTime aOldVisitDate,
400                                 in unsigned long aOldAccessCount);
401
402  /**
403   * Called when the tags set on the uri represented by aNode have changed.
404   *
405   * @param aNode
406   *        a uri result node
407   *
408   * @note: The new tags list is accessible through aNode.tags.
409   */
410  void nodeTagsChanged(in nsINavHistoryResultNode aNode);
411
412  /**
413   * Called right after the aNode's keyword property has changed.
414   *
415   * @param aNode
416   *        a uri result node
417   * @param aNewKeyword
418   *        the new keyword
419   */
420  void nodeKeywordChanged(in nsINavHistoryResultNode aNode,
421                          in AUTF8String aNewKeyword);
422
423  /**
424   * Called right after aNode's dateAdded property has changed.
425   *
426   * @param aNode
427   *        a result node
428   * @param aNewValue
429   *        the new value of the dateAdded property
430   */
431  void nodeDateAddedChanged(in nsINavHistoryResultNode aNode,
432                            in PRTime aNewValue);
433
434  /**
435   * Called right after aNode's dateModified property has changed.
436   *
437   * @param aNode
438   *        a result node
439   * @param aNewValue
440   *        the new value of the dateModified property
441   */
442  void nodeLastModifiedChanged(in nsINavHistoryResultNode aNode,
443                               in PRTime aNewValue);
444
445  /**
446   * Called after a container changes state.
447   *
448   * @param aContainerNode
449   *        The container that has changed state.
450   * @param aOldState
451   *        The state that aContainerNode has transitioned out of.
452   * @param aNewState
453   *        The state that aContainerNode has transitioned into.
454   */
455  void containerStateChanged(in nsINavHistoryContainerResultNode aContainerNode,
456                             in unsigned long aOldState,
457                             in unsigned long aNewState);
458
459  /**
460   * Called when something significant has happened within the container. The
461   * contents of the container should be re-built.
462   *
463   * @param aContainerNode
464   *        the container node to invalidate
465   */
466  void invalidateContainer(in nsINavHistoryContainerResultNode aContainerNode);
467
468  /**
469   * This is called to indicate to the UI that the sort has changed to the
470   * given mode. For trees, for example, this would update the column headers
471   * to reflect the sorting. For many other types of views, this won't be
472   * applicable.
473   *
474   * @param sortingMode  One of nsINavHistoryQueryOptions.SORT_BY_* that
475   *                     indicates the new sorting mode.
476   *
477   * This only is expected to update the sorting UI. invalidateAll() will also
478   * get called if the sorting changes to update everything.
479   */
480  void sortingChanged(in unsigned short sortingMode);
481
482  /**
483   * This is called to indicate that a batch operation is about to start or end.
484   * The observer could want to disable some events or updates during batches,
485   * since multiple operations are packed in a short time.
486   * For example treeviews could temporarily suppress select notifications.
487   *
488   * @param aToggleMode
489   *        true if a batch is starting, false if it's ending.
490   */
491  void batching(in boolean aToggleMode);
492
493  /**
494   * Called by the result when this observer is added.
495   */
496  attribute nsINavHistoryResult result;
497};
498
499
500/**
501 * The result of a history/bookmark query.
502 */
503[scriptable, uuid(c2229ce3-2159-4001-859c-7013c52f7619)]
504interface nsINavHistoryResult : nsISupports
505{
506  /**
507   * Sorts all nodes recursively by the given parameter, one of
508   * nsINavHistoryQueryOptions.SORT_BY_*  This will update the corresponding
509   * options for this result, so that re-using the current options/queries will
510   * always give you the current view.
511   */
512  attribute unsigned short sortingMode;
513
514  /**
515   * Whether or not notifications on result changes are suppressed.
516   * Initially set to false.
517   *
518   * Use this to avoid flickering and to improve performance when you
519   * do temporary changes to the result structure (e.g. when searching for a
520   * node recursively).
521   */
522  attribute boolean suppressNotifications;
523
524  /**
525   * Adds an observer for changes done in the result.
526   *
527   * @param aObserver
528   *        a result observer.
529   * @param aOwnsWeak
530   *        If false, the result will keep an owning reference to the observer,
531   *        which must be removed using removeObserver.
532   *        If true, the result will keep a weak reference to the observer, which
533   *        must implement nsISupportsWeakReference.
534   *
535   * @see nsINavHistoryResultObserver
536   */
537  void addObserver(in nsINavHistoryResultObserver aObserver,
538                   [optional] in boolean aOwnsWeak);
539
540  /**
541   * Removes an observer that was added by addObserver.
542   *
543   * @param aObserver
544   *        a result observer that was added by addObserver.
545   */
546  void removeObserver(in nsINavHistoryResultObserver aObserver);
547
548  /**
549   * This is the root of the results. Remember that you need to open all
550   * containers for their contents to be valid.
551   *
552   * When a result goes out of scope it will continue to observe changes till
553   * it is cycle collected.  While the result waits to be collected it will stay
554   * in memory, and continue to update itself, potentially causing unwanted
555   * additional work.  When you close the root node the result will stop
556   * observing changes, so it is good practice to close the root node when you
557   * are done with a result, since that will avoid unwanted performance hits.
558   */
559  readonly attribute nsINavHistoryContainerResultNode root;
560
561  /**
562   * Notifies you that a bunch of things are about to change, don't do any
563   * heavy-duty processing until onEndUpdateBatch is called.
564   */
565  void onBeginUpdateBatch();
566
567  /**
568   * Notifies you that we are done doing a bunch of things and you should go
569   * ahead and update UI, etc.
570   */
571  void onEndUpdateBatch();
572};
573
574
575/**
576 * This object encapsulates all the query parameters you're likely to need
577 * when building up history UI. All parameters are ANDed together.
578 *
579 * This is not intended to be a super-general query mechanism. This was designed
580 * so that most queries can be done in only one SQL query. This is important
581 * because, if the user has their profile on a networked drive, query latency
582 * can be non-negligible.
583 */
584
585[scriptable, uuid(dc87ae79-22f1-4dcf-975b-852b01d210cb)]
586interface nsINavHistoryQuery : nsISupports
587{
588  /**
589   * Time range for results (INCLUSIVE). The *TimeReference is one of the
590   * constants TIME_RELATIVE_* which indicates how to interpret the
591   * corresponding time value.
592   *   TIME_RELATIVE_EPOCH (default):
593   *     The time is relative to Jan 1 1970 GMT, (this is a normal PRTime)
594   *   TIME_RELATIVE_TODAY:
595   *     The time is relative to this morning at midnight. Normally used for
596   *     queries relative to today. For example, a "past week" query would be
597   *     today-6 days -> today+1 day
598   *   TIME_RELATIVE_NOW:
599   *     The time is relative to right now.
600   *
601   * Note: PRTime is in MICROseconds since 1 Jan 1970. Javascript date objects
602   * are expressed in MILLIseconds since 1 Jan 1970.
603   *
604   * As a special case, a 0 time relative to TIME_RELATIVE_EPOCH indicates that
605   * the time is not part of the query. This is the default, so an empty query
606   * will match any time. The has* functions return whether the corresponding
607   * time is considered.
608   *
609   * You can read absolute*Time to get the time value that the currently loaded
610   * reference points + offset resolve to.
611   */
612  const unsigned long TIME_RELATIVE_EPOCH = 0;
613  const unsigned long TIME_RELATIVE_TODAY = 1;
614  const unsigned long TIME_RELATIVE_NOW = 2;
615
616  attribute PRTime beginTime;
617  attribute unsigned long beginTimeReference;
618  readonly attribute boolean hasBeginTime;
619  readonly attribute PRTime absoluteBeginTime;
620
621  attribute PRTime endTime;
622  attribute unsigned long endTimeReference;
623  readonly attribute boolean hasEndTime;
624  readonly attribute PRTime absoluteEndTime;
625
626  /**
627   * Text search terms.
628   */
629  attribute AString searchTerms;
630  readonly attribute boolean hasSearchTerms;
631
632  /**
633   * Set lower or upper limits for how many times an item has been
634   * visited.  The default is -1, and in that case all items are
635   * matched regardless of their visit count.
636   */
637  attribute long minVisits;
638  attribute long maxVisits;
639
640  /**
641   * When the set of transitions is nonempty, results are limited to pages which
642   * have at least one visit for each of the transition types.
643   * @note: For searching on more than one transition this can be very slow.
644   *
645   * Limit results to the specified list of transition types.
646   */
647  void setTransitions(in Array<unsigned long> transitions);
648
649  /**
650   * Get the transitions set for this query.
651   */
652  Array<unsigned long> getTransitions();
653
654  /**
655   * Get the count of the set query transitions.
656   */
657  readonly attribute unsigned long transitionCount;
658
659  /**
660   * When set, returns only bookmarked items, when unset, returns anything. Setting this
661   * is equivalent to listing all bookmark folders in the 'folders' parameter.
662   */
663  attribute boolean onlyBookmarked;
664
665  /**
666   * This controls the meaning of 'domain', and whether it is an exact match
667   * 'domainIsHost' = true, or hierarchical (= false).
668   */
669  attribute boolean domainIsHost;
670
671  /**
672   * This is the host or domain name (controlled by domainIsHost). When
673   * domainIsHost, domain only does exact matching on host names. Otherwise,
674   * it will return anything whose host name ends in 'domain'.
675   *
676   * This one is a little different than most. Setting it to an empty string
677   * is a real query and will match any URI that has no host name (local files
678   * and such). Set this to NULL (in C++ use SetIsVoid) if you don't want
679   * domain matching.
680   */
681  attribute AUTF8String domain;
682  readonly attribute boolean hasDomain;
683
684  /**
685   * This is a URI to match, to, for example, find out every time you visited
686   * a given URI. This is an exact match.
687   */
688  attribute nsIURI uri;
689  readonly attribute boolean hasUri;
690
691  /**
692   * Test for existence or non-existence of a given annotation. We don't
693   * currently support >1 annotation name per query. If 'annotationIsNot' is
694   * true, we test for the non-existence of the specified annotation.
695   *
696   * Testing for not annotation will do the same thing as a normal query and
697   * remove everything that doesn't have that annotation. Asking for things
698   * that DO have a given annotation is a little different. It also includes
699   * things that have never been visited. This allows place queries to be
700   * returned as well as anything else that may have been tagged with an
701   * annotation. This will only work for RESULTS_AS_URI since there will be
702   * no visits for these items.
703   */
704  attribute boolean annotationIsNot;
705  attribute AUTF8String annotation;
706  readonly attribute boolean hasAnnotation;
707
708  /**
709   * Limit results to items that are tagged with all of the given tags.  This
710   * attribute must be set to an array of strings.  When called as a getter it
711   * will return an array of strings sorted ascending in lexicographical order.
712   * The array may be empty in either case.  Duplicate tags may be specified
713   * when setting the attribute, but the getter returns only unique tags.
714   */
715  attribute nsIVariant tags;
716
717  /**
718   * If 'tagsAreNot' is true, the results are instead limited to items that
719   * are not tagged with any of the given tags.  This attribute is used in
720   * conjunction with the 'tags' attribute.
721   */
722  attribute boolean tagsAreNot;
723
724  /**
725   * Limit results to items that are in all of the given folders.
726   */
727  Array<ACString> getParents();
728  readonly attribute unsigned long parentCount;
729
730  /**
731   * This is not recursive so results will be returned from the first level of
732   * that folder.
733   */
734  void setParents(in Array<ACString> aGuids);
735
736  /**
737   * Creates a new query item with the same parameters of this one.
738   */
739  nsINavHistoryQuery clone();
740};
741
742/**
743 * This object represents the global options for executing a query.
744 */
745[scriptable, uuid(8198dfa7-8061-4766-95cb-fa86b3c00a47)]
746interface nsINavHistoryQueryOptions : nsISupports
747{
748  /**
749   * You can ask for the results to be pre-sorted. Since the DB has indices
750   * of many items, it can produce sorted results almost for free. These should
751   * be self-explanatory.
752   *
753   * Note: re-sorting is slower, as is sorting by title or when you have a
754   * host name.
755   *
756   * For bookmark items, SORT_BY_NONE means sort by the natural bookmark order.
757   */
758  const unsigned short SORT_BY_NONE = 0;
759  const unsigned short SORT_BY_TITLE_ASCENDING = 1;
760  const unsigned short SORT_BY_TITLE_DESCENDING = 2;
761  const unsigned short SORT_BY_DATE_ASCENDING = 3;
762  const unsigned short SORT_BY_DATE_DESCENDING = 4;
763  const unsigned short SORT_BY_URI_ASCENDING = 5;
764  const unsigned short SORT_BY_URI_DESCENDING = 6;
765  const unsigned short SORT_BY_VISITCOUNT_ASCENDING = 7;
766  const unsigned short SORT_BY_VISITCOUNT_DESCENDING = 8;
767  const unsigned short SORT_BY_DATEADDED_ASCENDING = 11;
768  const unsigned short SORT_BY_DATEADDED_DESCENDING = 12;
769  const unsigned short SORT_BY_LASTMODIFIED_ASCENDING = 13;
770  const unsigned short SORT_BY_LASTMODIFIED_DESCENDING = 14;
771  const unsigned short SORT_BY_TAGS_ASCENDING = 17;
772  const unsigned short SORT_BY_TAGS_DESCENDING = 18;
773  const unsigned short SORT_BY_FRECENCY_ASCENDING = 21;
774  const unsigned short SORT_BY_FRECENCY_DESCENDING = 22;
775
776  /**
777   * "URI" results, one for each URI visited in the range. Individual result
778   * nodes will be of type "URI".
779   */
780  const unsigned short RESULTS_AS_URI = 0;
781
782  /**
783   * "Visit" results, with one for each time a page was visited (this will
784   * often give you multiple results for one URI). Individual result nodes will
785   * have type "Visit"
786   *
787   * @note This result type is only supported by QUERY_TYPE_HISTORY.
788   */
789  const unsigned short RESULTS_AS_VISIT = 1;
790
791  /**
792   * This returns query nodes for each predefined date range where we
793   * had visits. The node contains information how to load its content:
794   * - visits for the given date range will be loaded.
795   *
796   * @note This result type is only supported by QUERY_TYPE_HISTORY.
797   */
798  const unsigned short RESULTS_AS_DATE_QUERY = 3;
799
800  /**
801   * This returns nsINavHistoryQueryResultNode nodes for each site where we
802   * have visits. The node contains information how to load its content:
803   * - last visit for each url in the given host will be loaded.
804   *
805   * @note This result type is only supported by QUERY_TYPE_HISTORY.
806   */
807  const unsigned short RESULTS_AS_SITE_QUERY = 4;
808
809  /**
810   * This returns nsINavHistoryQueryResultNode nodes for each day where we
811   * have visits. The node contains information how to load its content:
812   * - list of hosts visited in the given period will be loaded.
813   *
814   * @note This result type is only supported by QUERY_TYPE_HISTORY.
815   */
816  const unsigned short RESULTS_AS_DATE_SITE_QUERY = 5;
817
818  /**
819   * This returns nsINavHistoryQueryResultNode nodes for each tag.
820   * The node contains information how to load its content:
821   * - list of bookmarks with the given tag will be loaded.
822   *
823   * @note Setting this resultType will force queryType to QUERY_TYPE_BOOKMARKS.
824   */
825  const unsigned short RESULTS_AS_TAGS_ROOT = 6;
826
827  /**
828   * DEPRECATED: This exists for Sync and also to avoid reusing this number.
829   */
830  const unsigned short RESULTS_AS_TAG_CONTENTS = 7;
831
832  /**
833   * This returns nsINavHistoryQueryResultNode nodes for each top-level bookmark
834   * root.
835   *
836   * @note Setting this resultType will force queryType to QUERY_TYPE_BOOKMARKS.
837   */
838  const unsigned short RESULTS_AS_ROOTS_QUERY = 8;
839
840  /**
841   * This returns nsINavHistoryQueryResultNode for each left-pane root.
842   */
843  const unsigned short RESULTS_AS_LEFT_PANE_QUERY = 9;
844
845  /**
846   * The sorting mode to be used for this query.
847   * mode is one of SORT_BY_*
848   */
849  attribute unsigned short sortingMode;
850
851  /**
852   * Sets the result type. One of RESULT_TYPE_* which includes how URIs are
853   * represented.
854   */
855  attribute unsigned short resultType;
856
857  /**
858   * This option excludes all URIs and separators from a bookmarks query.
859   * This would be used if you just wanted a list of bookmark folders and
860   * queries (such as the left pane of the places page).
861   * Defaults to false.
862   */
863  attribute boolean excludeItems;
864
865  /**
866   * Set to true to exclude queries ("place:" URIs) from the query results.
867   * Simple folder queries (bookmark folder symlinks) will still be included.
868   * Defaults to false.
869   */
870  attribute boolean excludeQueries;
871
872  /**
873   * When set, allows items with "place:" URIs to appear as containers,
874   * with the container's contents filled in from the stored query.
875   * If not set, these will appear as normal items. Doesn't do anything if
876   * excludeQueries is set. Defaults to false.
877   *
878   * Note that this has no effect on folder links, which are place: URIs
879   * returned by nsINavBookmarkService.GetFolderURI. These are always expanded
880   * and will appear as bookmark folders.
881   */
882  attribute boolean expandQueries;
883
884  /**
885   * Some pages in history are marked "hidden" and thus don't appear by default
886   * in queries.  These include automatic framed visits and redirects.  Setting
887   * this attribute will return all pages, even hidden ones.  Does nothing for
888   * bookmark queries. Defaults to false.
889   */
890  attribute boolean includeHidden;
891
892  /**
893   * This is the maximum number of results that you want. The query is executed,
894   * the results are sorted, and then the top 'maxResults' results are taken
895   * and returned. Set to 0 (the default) to get all results.
896   *
897   * THIS DOES NOT WORK IN CONJUNCTION WITH SORTING BY TITLE. This is because
898   * sorting by title requires us to sort after using locale-sensetive sorting
899   * (as opposed to letting the database do it for us).
900   *
901   * Instead, we get the result ordered by date, pick the maxResult most recent
902   * ones, and THEN sort by title.
903   */
904  attribute unsigned long maxResults;
905
906  const unsigned short QUERY_TYPE_HISTORY = 0;
907  const unsigned short QUERY_TYPE_BOOKMARKS = 1;
908  /* Unified queries are not yet implemented. See bug 378798 */
909  const unsigned short QUERY_TYPE_UNIFIED = 2;
910
911  /**
912   * The type of search to use when querying the DB; This attribute is only
913   * honored by query nodes. It is silently ignored for simple folder queries.
914   */
915  attribute unsigned short queryType;
916
917  /**
918   * When this is true, the root container node generated by these options and
919   * its descendant containers will be opened asynchronously if they support it.
920   * This is false by default.
921   *
922   * @note Currently only bookmark folder containers support being opened
923   *       asynchronously.
924   */
925  attribute boolean asyncEnabled;
926
927  /**
928   * Creates a new options item with the same parameters of this one.
929   */
930  nsINavHistoryQueryOptions clone();
931};
932
933[scriptable, uuid(20c974ff-ee16-4828-9326-1b7c9e036622)]
934interface nsINavHistoryService : nsISupports
935{
936  /**
937   * System Notifications:
938   *
939   * places-init-complete - Sent once the History service is completely
940   *                        initialized successfully.
941   * places-database-locked - Sent if initialization of the History service
942   *                          failed due to the inability to open the places.sqlite
943   *                          for access reasons.
944   */
945
946  /**
947   * This transition type means the user followed a link and got a new toplevel
948   * window.
949   */
950  const unsigned long TRANSITION_LINK = 1;
951
952  /**
953   * This transition type means that the user typed the page's URL in the
954   * URL bar or selected it from URL bar autocomplete results, clicked on
955   * it from a history query (from the History sidebar, History menu,
956   * or history query in the personal toolbar or Places organizer.
957   */
958  const unsigned long TRANSITION_TYPED = 2;
959
960  /**
961   * This transition is set when the user followed a bookmark to get to the
962   * page.
963   */
964  const unsigned long TRANSITION_BOOKMARK = 3;
965
966  /**
967   * This transition type is set when some inner content is loaded. This is
968   * true of all images on a page, and the contents of the iframe. It is also
969   * true of any content in a frame if the user did not explicitly follow
970   * a link to get there.
971   */
972  const unsigned long TRANSITION_EMBED = 4;
973
974  /**
975   * Set when the transition was a permanent redirect.
976   */
977  const unsigned long TRANSITION_REDIRECT_PERMANENT = 5;
978
979  /**
980   * Set when the transition was a temporary redirect.
981   */
982  const unsigned long TRANSITION_REDIRECT_TEMPORARY = 6;
983
984  /**
985   * Set when the transition is a download.
986   */
987  const unsigned long TRANSITION_DOWNLOAD = 7;
988
989  /**
990   * This transition type means the user followed a link and got a visit in
991   * a frame.
992   */
993  const unsigned long TRANSITION_FRAMED_LINK = 8;
994
995  /**
996   * This transition type means the page has been reloaded.
997   */
998  const unsigned long TRANSITION_RELOAD = 9;
999
1000  /**
1001   * Set when database is coherent
1002   */
1003  const unsigned short DATABASE_STATUS_OK = 0;
1004
1005  /**
1006   * Set when database did not exist and we created a new one.
1007   */
1008  const unsigned short DATABASE_STATUS_CREATE = 1;
1009
1010  /**
1011   * Set when database was corrupt and we replaced it with a new one.
1012   */
1013  const unsigned short DATABASE_STATUS_CORRUPT = 2;
1014
1015  /**
1016   * Set when database schema has been upgraded.
1017   */
1018  const unsigned short DATABASE_STATUS_UPGRADED = 3;
1019
1020  /**
1021   * Set when database couldn't be opened.
1022   */
1023  const unsigned short DATABASE_STATUS_LOCKED = 4;
1024
1025  /**
1026   * Returns the current database status
1027   */
1028  readonly attribute unsigned short databaseStatus;
1029
1030  /**
1031   * This is just like markPageAsTyped (in nsIBrowserHistory, also implemented
1032   * by the history service), but for bookmarks. It declares that the given URI
1033   * is being opened as a result of following a bookmark. If this URI is loaded
1034   * soon after this message has been received, that transition will be marked
1035   * as following a bookmark.
1036   */
1037  void markPageAsFollowedBookmark(in nsIURI aURI);
1038
1039  /**
1040   * Designates the url as having been explicitly typed in by the user.
1041   *
1042   * @param aURI
1043   *        URI of the page to be marked.
1044   */
1045  void markPageAsTyped(in nsIURI aURI);
1046
1047  /**
1048   * Designates the url as coming from a link explicitly followed by
1049   * the user (for example by clicking on it).
1050   *
1051   * @param aURI
1052   *        URI of the page to be marked.
1053   */
1054  void markPageAsFollowedLink(in nsIURI aURI);
1055
1056  /**
1057   * Returns true if this URI would be added to the history. You don't have to
1058   * worry about calling this, adding a visit will always check before
1059   * actually adding the page. This function is public because some components
1060   * may want to check if this page would go in the history (i.e. for
1061   * annotations).
1062   */
1063  boolean canAddURI(in nsIURI aURI);
1064
1065  /**
1066   * This returns a new query object that you can pass to executeQuer[y/ies].
1067   * It will be initialized to all empty (so using it will give you all history).
1068   */
1069  nsINavHistoryQuery getNewQuery();
1070
1071  /**
1072   * This returns a new options object that you can pass to executeQuer[y/ies]
1073   * after setting the desired options.
1074   */
1075  nsINavHistoryQueryOptions getNewQueryOptions();
1076
1077  /**
1078   * Executes a single query.
1079   */
1080  nsINavHistoryResult executeQuery(in nsINavHistoryQuery aQuery,
1081                                   in nsINavHistoryQueryOptions options);
1082
1083  /**
1084   * Converts a query URI-like string to a query object.
1085   */
1086  void queryStringToQuery(in AUTF8String aQueryString,
1087                          out nsINavHistoryQuery aQuery,
1088                          out nsINavHistoryQueryOptions options);
1089
1090  /**
1091   * Converts a query into an equivalent string that can be persisted. Inverse
1092   * of queryStringToQuery()
1093   */
1094  AUTF8String queryToQueryString(in nsINavHistoryQuery aQuery,
1095                                 in nsINavHistoryQueryOptions options);
1096
1097  /**
1098   * True if history is disabled. currently,
1099   * history is disabled if the places.history.enabled pref is false.
1100   */
1101  readonly attribute boolean historyDisabled;
1102
1103  /**
1104   * Generate a guid.
1105   * Guids can be used for any places purposes (history, bookmarks, etc.)
1106   * Returns null if the generation of the guid failed.
1107   */
1108  ACString makeGuid();
1109
1110  /**
1111   * Returns a 48-bit hash for a URI spec.
1112   *
1113   * @param aSpec
1114   *        The URI spec to hash.
1115   * @param aMode
1116   *        The hash mode: `""` (default), `"prefix_lo"`, or `"prefix_hi"`.
1117   */
1118  unsigned long long hashURL(in ACString aSpec, [optional] in ACString aMode);
1119
1120  /**
1121   * Resets and recalculates the origin frecency statistics that are kept in the
1122   * moz_meta table.
1123   *
1124   * @param aCallback
1125   *        Called when the recalculation is complete.  The arguments passed to
1126   *        the observer are not defined.
1127   */
1128  void recalculateOriginFrecencyStats([optional] in nsIObserver aCallback);
1129
1130  /**
1131   * The database connection used by Places.
1132   */
1133  readonly attribute mozIStorageConnection DBConnection;
1134
1135  /**
1136   * Asynchronously executes the statement created from a query.
1137   *
1138   * @see nsINavHistoryService::executeQuery
1139   * @note THIS IS A TEMPORARY API.  Don't rely on it, since it will be replaced
1140   *       in future versions by a real async querying API.
1141   * @note Results obtained from this method differ from results obtained from
1142   *       executeQuery, because there is additional filtering and sorting
1143   *       done by the latter.  Thus you should use executeQuery, unless you
1144   *       are absolutely sure that the returned results are fine for
1145   *       your use-case.
1146   */
1147  mozIStoragePendingStatement asyncExecuteLegacyQuery(
1148    in nsINavHistoryQuery aQuery,
1149    in nsINavHistoryQueryOptions aOptions,
1150    in mozIStorageStatementCallback aCallback);
1151
1152  /**
1153   * Hook for clients who need to perform actions during/by the end of
1154   * the shutdown of the database.
1155   * May be null if it's too late to get one.
1156   */
1157  readonly attribute nsIAsyncShutdownClient shutdownClient;
1158
1159  /**
1160   * Hook for internal clients who need to perform actions just before the
1161   * connection gets closed.
1162   * May be null if it's too late to get one.
1163   */
1164  readonly attribute nsIAsyncShutdownClient connectionShutdownClient;
1165
1166  /**
1167   * Asynchronously recalculates frecency for all pages where frecency < 0, then
1168   * decays frecency and inputhistory values.
1169   */
1170   void decayFrecency();
1171};
1172