Add FormGroup, an interface that represents a collection of form fields group...

chrome/browser/autofill/form_group.h

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_AUTOFILL_FORM_GROUP_H_
+#define CHROME_BROWSER_AUTOFILL_FORM_GROUP_H_
+
+#include <vector>
+
+#include "base/string16.h"
+
+// This class is an interface for collections of form fields, grouped by type.
+// The information in objects of this class is managed by the
+// PersonalDataManager.
+class FormGroup {
+ public:
+  virtual ~FormGroup() {}
+
+  // Returns a clone of this object.
+  virtual FormGroup* Clone() const = 0;
+
+  // Used to determine the type of a field based on the text that a user enters
+  // into the field. The field types can then be reported back to the server.
+  virtual void GetPossibleFieldTypes(const string16& text,
+                                     FieldTypeSet* possible_types) const = 0;
+
+  // Returns the string that should be autofilled into a text field given the
+  // type of that field.
+  virtual string16 GetFieldText(const AutoFillType& type) const = 0;
+
+  // Returns the text for preview.
+  virtual string16 GetPreviewText(const AutoFillType& type) const {
+    return GetFieldText(type);
+  }
+
+  // Used to determine if the text being typed into a field matches the
+  // information in this FormGroup object. This is used by the preview
+  // functionality.  |matched_text| will be populated with all of the possible
+  // matches given the type.
+  virtual void FindInfoMatches(const AutoFillType& type,
+                               const string16& info,
+                               std::vector<string16>* matched_text) const = 0;
+
+  // Used to populate this FormGroup object with data.
+  virtual void SetInfo(const AutoFillType& type, const string16& value) = 0;
+
+  // Returns the label for this FormGroup item. This should be overridden for
+  // form group items that implement a label.
+  virtual string16 Label() const { return EmptyString(); }
+};
+
+#endif  // CHROME_BROWSER_AUTOFILL_FORM_GROUP_H_