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comparison: toolkit/components/places/SQLFunctions.h

toolkit/components/places/SQLFunctions.h

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1 /* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
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 #ifndef mozilla_places_SQLFunctions_h_
7 #define mozilla_places_SQLFunctions_h_
8
9 /**
10 * This file contains functions that Places adds to the database handle that can
11 * be accessed by SQL queries.
12 *
13 * Keep the GUID-related parts of this file in sync with
14 * toolkit/downloads/SQLFunctions.[h|cpp]!
15 */
16
17 #include "mozIStorageFunction.h"
18 #include "mozilla/Attributes.h"
19
20 class mozIStorageConnection;
21
22 namespace mozilla {
23 namespace places {
24
25 ////////////////////////////////////////////////////////////////////////////////
26 //// AutoComplete Matching Function
27
28 /**
29 * This function is used to determine if a given set of data should match an
30 * AutoComplete query.
31 *
32 * In SQL, you'd use it in the WHERE clause like so:
33 * WHERE AUTOCOMPLETE_MATCH(aSearchString, aURL, aTitle, aTags, aVisitCount,
34 * aTyped, aBookmark, aOpenPageCount, aMatchBehavior,
35 * aSearchBehavior)
36 *
37 * @param aSearchString
38 * The string to compare against.
39 * @param aURL
40 * The URL to test for an AutoComplete match.
41 * @param aTitle
42 * The title to test for an AutoComplete match.
43 * @param aTags
44 * The tags to test for an AutoComplete match.
45 * @param aVisitCount
46 * The number of visits aURL has.
47 * @param aTyped
48 * Indicates if aURL is a typed URL or not. Treated as a boolean.
49 * @param aBookmark
50 * Indicates if aURL is a bookmark or not. Treated as a boolean.
51 * @param aOpenPageCount
52 * The number of times aURL has been registered as being open. (See
53 * mozIPlacesAutoComplete::registerOpenPage.)
54 * @param aMatchBehavior
55 * The match behavior to use for this search.
56 * @param aSearchBehavior
57 * A bitfield dictating the search behavior.
58 */
59 class MatchAutoCompleteFunction MOZ_FINAL : public mozIStorageFunction
60 {
61 public:
62 NS_DECL_THREADSAFE_ISUPPORTS
63 NS_DECL_MOZISTORAGEFUNCTION
64
65 /**
66 * Registers the function with the specified database connection.
67 *
68 * @param aDBConn
69 * The database connection to register with.
70 */
71 static nsresult create(mozIStorageConnection *aDBConn);
72
73 private:
74 /**
75 * Argument Indexes
76 */
77 static const uint32_t kArgSearchString = 0;
78 static const uint32_t kArgIndexURL = 1;
79 static const uint32_t kArgIndexTitle = 2;
80 static const uint32_t kArgIndexTags = 3;
81 static const uint32_t kArgIndexVisitCount = 4;
82 static const uint32_t kArgIndexTyped = 5;
83 static const uint32_t kArgIndexBookmark = 6;
84 static const uint32_t kArgIndexOpenPageCount = 7;
85 static const uint32_t kArgIndexMatchBehavior = 8;
86 static const uint32_t kArgIndexSearchBehavior = 9;
87 static const uint32_t kArgIndexLength = 10;
88
89 /**
90 * Typedefs
91 */
92 typedef bool (*searchFunctionPtr)(const nsDependentCSubstring &aToken,
93 const nsACString &aSourceString);
94
95 typedef nsACString::const_char_iterator const_char_iterator;
96
97 /**
98 * Obtains the search function to match on.
99 *
100 * @param aBehavior
101 * The matching behavior to use defined by one of the
102 * mozIPlacesAutoComplete::MATCH_* values.
103 * @return a pointer to the function that will perform the proper search.
104 */
105 static searchFunctionPtr getSearchFunction(int32_t aBehavior);
106
107 /**
108 * Tests if aSourceString starts with aToken.
109 *
110 * @param aToken
111 * The string to search for.
112 * @param aSourceString
113 * The string to search.
114 * @return true if found, false otherwise.
115 */
116 static bool findBeginning(const nsDependentCSubstring &aToken,
117 const nsACString &aSourceString);
118
119 /**
120 * Tests if aSourceString starts with aToken in a case sensitive way.
121 *
122 * @param aToken
123 * The string to search for.
124 * @param aSourceString
125 * The string to search.
126 * @return true if found, false otherwise.
127 */
128 static bool findBeginningCaseSensitive(const nsDependentCSubstring &aToken,
129 const nsACString &aSourceString);
130
131 /**
132 * Searches aSourceString for aToken anywhere in the string in a case-
133 * insensitive way.
134 *
135 * @param aToken
136 * The string to search for.
137 * @param aSourceString
138 * The string to search.
139 * @return true if found, false otherwise.
140 */
141 static bool findAnywhere(const nsDependentCSubstring &aToken,
142 const nsACString &aSourceString);
143
144 /**
145 * Tests if aToken is found on a word boundary in aSourceString.
146 *
147 * @param aToken
148 * The string to search for.
149 * @param aSourceString
150 * The string to search.
151 * @return true if found, false otherwise.
152 */
153 static bool findOnBoundary(const nsDependentCSubstring &aToken,
154 const nsACString &aSourceString);
155
156
157 /**
158 * Fixes a URI's spec such that it is ready to be searched. This includes
159 * unescaping escaped characters and removing certain specs that we do not
160 * care to search for.
161 *
162 * @param aURISpec
163 * The spec of the URI to prepare for searching.
164 * @param aMatchBehavior
165 * The matching behavior to use defined by one of the
166 * mozIPlacesAutoComplete::MATCH_* values.
167 * @param _fixedSpec
168 * An out parameter that is the fixed up string.
169 */
170 static void fixupURISpec(const nsCString &aURISpec, int32_t aMatchBehavior,
171 nsCString &_fixedSpec);
172 };
173
174
175
176 ////////////////////////////////////////////////////////////////////////////////
177 //// Frecency Calculation Function
178
179 /**
180 * This function is used to calculate frecency for a page.
181 *
182 * In SQL, you'd use it in when setting frecency like:
183 * SET frecency = CALCULATE_FRECENCY(place_id).
184 * Optional parameters must be passed in if the page is not yet in the database,
185 * otherwise they will be fetched from it automatically.
186 *
187 * @param pageId
188 * The id of the page. Pass -1 if the page is being added right now.
189 * @param [optional] typed
190 * Whether the page has been typed in. Default is false.
191 * @param [optional] fullVisitCount
192 * Count of all the visits (All types). Default is 0.
193 * @param [optional] isBookmarked
194 * Whether the page is bookmarked. Default is false.
195 */
196 class CalculateFrecencyFunction MOZ_FINAL : public mozIStorageFunction
197 {
198 public:
199 NS_DECL_THREADSAFE_ISUPPORTS
200 NS_DECL_MOZISTORAGEFUNCTION
201
202 /**
203 * Registers the function with the specified database connection.
204 *
205 * @param aDBConn
206 * The database connection to register with.
207 */
208 static nsresult create(mozIStorageConnection *aDBConn);
209 };
210
211 /**
212 * SQL function to generate a GUID for a place or bookmark item. This is just
213 * a wrapper around GenerateGUID in Helpers.h.
214 *
215 * @return a guid for the item.
216 */
217 class GenerateGUIDFunction MOZ_FINAL : public mozIStorageFunction
218 {
219 public:
220 NS_DECL_THREADSAFE_ISUPPORTS
221 NS_DECL_MOZISTORAGEFUNCTION
222
223 /**
224 * Registers the function with the specified database connection.
225 *
226 * @param aDBConn
227 * The database connection to register with.
228 */
229 static nsresult create(mozIStorageConnection *aDBConn);
230 };
231
232 /**
233 * SQL function to unreverse the rev_host of a page.
234 *
235 * @param rev_host
236 * The rev_host value of the page.
237 *
238 * @return the unreversed host of the page.
239 */
240 class GetUnreversedHostFunction MOZ_FINAL : public mozIStorageFunction
241 {
242 public:
243 NS_DECL_THREADSAFE_ISUPPORTS
244 NS_DECL_MOZISTORAGEFUNCTION
245
246 /**
247 * Registers the function with the specified database connection.
248 *
249 * @param aDBConn
250 * The database connection to register with.
251 */
252 static nsresult create(mozIStorageConnection *aDBConn);
253 };
254
255
256 ////////////////////////////////////////////////////////////////////////////////
257 //// Fixup URL Function
258
259 /**
260 * Make a given URL more suitable for searches, by removing common prefixes
261 * such as "www."
262 *
263 * @param url
264 * A URL.
265 * @return
266 * The same URL, with redundant parts removed.
267 */
268 class FixupURLFunction MOZ_FINAL : public mozIStorageFunction
269 {
270 public:
271 NS_DECL_THREADSAFE_ISUPPORTS
272 NS_DECL_MOZISTORAGEFUNCTION
273
274 /**
275 * Registers the function with the specified database connection.
276 *
277 * @param aDBConn
278 * The database connection to register with.
279 */
280 static nsresult create(mozIStorageConnection *aDBConn);
281 };
282
283
284 ////////////////////////////////////////////////////////////////////////////////
285 //// Frecency Changed Notification Function
286
287 /**
288 * For a given place, posts a runnable to the main thread that calls
289 * onFrecencyChanged on nsNavHistory's nsINavHistoryObservers. The passed-in
290 * newFrecency value is returned unchanged.
291 *
292 * @param newFrecency
293 * The place's new frecency.
294 * @param url
295 * The place's URL.
296 * @param guid
297 * The place's GUID.
298 * @param hidden
299 * The place's hidden boolean.
300 * @param lastVisitDate
301 * The place's last visit date.
302 * @return newFrecency
303 */
304 class FrecencyNotificationFunction MOZ_FINAL : public mozIStorageFunction
305 {
306 public:
307 NS_DECL_THREADSAFE_ISUPPORTS
308 NS_DECL_MOZISTORAGEFUNCTION
309
310 /**
311 * Registers the function with the specified database connection.
312 *
313 * @param aDBConn
314 * The database connection to register with.
315 */
316 static nsresult create(mozIStorageConnection *aDBConn);
317 };
318
319
320 } // namespace places
321 } // namespace storage
322
323 #endif // mozilla_places_SQLFunctions_h_

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