1 // Copyright (c) 2011 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_AUTOCOMPLETE_HISTORY_PROVIDER_UTIL_H_ 6 #define CHROME_BROWSER_AUTOCOMPLETE_HISTORY_PROVIDER_UTIL_H_ 7 #pragma once 8 9 #include <deque> 10 #include <vector> 11 12 #include "chrome/browser/history/history_types.h" 13 14 namespace history { 15 16 // Used for intermediate history result operations. 17 struct HistoryMatch { 18 // Required for STL, we don't use this directly. 19 HistoryMatch(); 20 21 HistoryMatch(const URLRow& url_info, 22 size_t input_location, 23 bool match_in_scheme, 24 bool innermost_match); 25 26 bool operator==(const GURL& url) const; 27 28 URLRow url_info; 29 30 // The offset of the user's input within the URL. 31 size_t input_location; 32 33 // Whether this is a match in the scheme. This determines whether we'll go 34 // ahead and show a scheme on the URL even if the user didn't type one. 35 // If our best match was in the scheme, not showing the scheme is both 36 // confusing and, for inline autocomplete of the fill_into_edit, dangerous. 37 // (If the user types "h" and we match "http://foo/", we need to inline 38 // autocomplete that, not "foo/", which won't show anything at all, and 39 // will mislead the user into thinking the What You Typed match is what's 40 // selected.) 41 bool match_in_scheme; 42 43 // A match after any scheme/"www.", if the user input could match at both 44 // locations. If the user types "w", an innermost match ("website.com") is 45 // better than a non-innermost match ("www.google.com"). If the user types 46 // "x", no scheme in our prefix list (or "www.") begins with x, so all 47 // matches are, vacuously, "innermost matches". 48 bool innermost_match; 49 }; 50 typedef std::deque<HistoryMatch> HistoryMatches; 51 52 struct Prefix { PrefixPrefix53 Prefix(const string16& prefix, int num_components) 54 : prefix(prefix), 55 num_components(num_components) {} 56 57 string16 prefix; 58 59 // The number of "components" in the prefix. The scheme is a component, 60 // and the initial "www." or "ftp." is a component. So "http://foo.com" 61 // and "www.bar.com" each have one component, "ftp://ftp.ftp.com" has two, 62 // and "mysite.com" has none. This is used to tell whether the user's 63 // input is an innermost match or not. See comments in HistoryMatch. 64 int num_components; 65 }; 66 typedef std::vector<Prefix> Prefixes; 67 } 68 69 #endif // CHROME_BROWSER_AUTOCOMPLETE_HISTORY_PROVIDER_UTIL_H_ 70