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| 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 COMPONENTS_AUTOFILL_BROWSER_FORM_FIELD_H_ | |
| 6 #define COMPONENTS_AUTOFILL_BROWSER_FORM_FIELD_H_ | |
| 7 | |
| 8 #include <vector> | |
| 9 | |
| 10 #include "base/basictypes.h" | |
| 11 #include "base/gtest_prod_util.h" | |
| 12 #include "base/strings/string16.h" | |
| 13 #include "components/autofill/browser/autofill_type.h" | |
| 14 | |
| 15 namespace autofill { | |
| 16 | |
| 17 class AutofillField; | |
| 18 class AutofillScanner; | |
| 19 | |
| 20 // Represents a logical form field in a web form. Classes that implement this | |
| 21 // interface can identify themselves as a particular type of form field, e.g. | |
| 22 // name, phone number, or address field. | |
| 23 class FormField { | |
| 24 public: | |
| 25 virtual ~FormField() {} | |
| 26 | |
| 27 // Classifies each field in |fields| with its heuristically detected type. | |
| 28 // The association is stored into |map|. Each field has a derived unique name | |
| 29 // that is used as the key into the |map|. | |
| 30 static void ParseFormFields(const std::vector<AutofillField*>& fields, | |
| 31 FieldTypeMap* map); | |
| 32 | |
| 33 protected: | |
| 34 // A bit-field used for matching specific parts of a field in question. | |
| 35 enum MatchType { | |
| 36 // Attributes. | |
| 37 MATCH_LABEL = 1 << 0, | |
| 38 MATCH_NAME = 1 << 1, | |
| 39 MATCH_VALUE = 1 << 2, | |
| 40 | |
| 41 // Input types. | |
| 42 MATCH_TEXT = 1 << 3, | |
| 43 MATCH_EMAIL = 1 << 4, | |
| 44 MATCH_TELEPHONE = 1 << 5, | |
| 45 MATCH_SELECT = 1 << 6, | |
| 46 MATCH_ALL_INPUTS = | |
| 47 MATCH_TEXT | MATCH_EMAIL | MATCH_TELEPHONE | MATCH_SELECT, | |
| 48 | |
| 49 // By default match label and name for input/text types. | |
| 50 MATCH_DEFAULT = MATCH_LABEL | MATCH_NAME | MATCH_VALUE | MATCH_TEXT, | |
| 51 }; | |
| 52 | |
| 53 // Only derived classes may instantiate. | |
| 54 FormField() {} | |
| 55 | |
| 56 // Attempts to parse a form field with the given pattern. Returns true on | |
| 57 // success and fills |match| with a pointer to the field. | |
| 58 static bool ParseField(AutofillScanner* scanner, | |
| 59 const base::string16& pattern, | |
| 60 const AutofillField** match); | |
| 61 | |
| 62 // Parses the stream of fields in |scanner| with regular expression |pattern| | |
| 63 // as specified in the |match_type| bit field (see |MatchType|). If |match| | |
| 64 // is non-NULL and the pattern matches, the matched field is returned. | |
| 65 // A |true| result is returned in the case of a successful match, false | |
| 66 // otherwise. | |
| 67 static bool ParseFieldSpecifics(AutofillScanner* scanner, | |
| 68 const base::string16& pattern, | |
| 69 int match_type, | |
| 70 const AutofillField** match); | |
| 71 | |
| 72 // Attempts to parse a field with an empty label. Returns true | |
| 73 // on success and fills |match| with a pointer to the field. | |
| 74 static bool ParseEmptyLabel(AutofillScanner* scanner, | |
| 75 const AutofillField** match); | |
| 76 | |
| 77 // Adds an association between a field and a type to |map|. | |
| 78 static bool AddClassification(const AutofillField* field, | |
| 79 AutofillFieldType type, | |
| 80 FieldTypeMap* map); | |
| 81 | |
| 82 // Derived classes must implement this interface to supply field type | |
| 83 // information. |ParseFormFields| coordinates the parsing and extraction | |
| 84 // of types from an input vector of |AutofillField| objects and delegates | |
| 85 // the type extraction via this method. | |
| 86 virtual bool ClassifyField(FieldTypeMap* map) const = 0; | |
| 87 | |
| 88 private: | |
| 89 FRIEND_TEST_ALL_PREFIXES(FormFieldTest, Match); | |
| 90 | |
| 91 // Function pointer type for the parsing function that should be passed to the | |
| 92 // ParseFormFieldsPass() helper function. | |
| 93 typedef FormField* ParseFunction(AutofillScanner* scanner); | |
| 94 | |
| 95 // Matches |pattern| to the contents of the field at the head of the | |
| 96 // |scanner|. | |
| 97 // Returns |true| if a match is found according to |match_type|, and |false| | |
| 98 // otherwise. | |
| 99 static bool MatchAndAdvance(AutofillScanner* scanner, | |
| 100 const base::string16& pattern, | |
| 101 int match_type, | |
| 102 const AutofillField** match); | |
| 103 | |
| 104 // Matches the regular expression |pattern| against the components of |field| | |
| 105 // as specified in the |match_type| bit field (see |MatchType|). | |
| 106 static bool Match(const AutofillField* field, | |
| 107 const base::string16& pattern, | |
| 108 int match_type); | |
| 109 | |
| 110 // Perform a "pass" over the |fields| where each pass uses the supplied | |
| 111 // |parse| method to match content to a given field type. | |
| 112 // |fields| is both an input and an output parameter. Upon exit |fields| | |
| 113 // holds any remaining unclassified fields for further processing. | |
| 114 // Classification results of the processed fields are stored in |map|. | |
| 115 static void ParseFormFieldsPass(ParseFunction parse, | |
| 116 std::vector<const AutofillField*>* fields, | |
| 117 FieldTypeMap* map); | |
| 118 | |
| 119 DISALLOW_COPY_AND_ASSIGN(FormField); | |
| 120 }; | |
| 121 | |
| 122 } // namespace autofill | |
| 123 | |
| 124 #endif // COMPONENTS_AUTOFILL_BROWSER_FORM_FIELD_H_ | |
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Chromium Code Reviews
Issue 17392006:
In components/autofill, move browser/ to core/browser/ (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src