1 // Copyright 2013 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_CONTENT_RENDERER_FORM_CACHE_H_ 6 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_FORM_CACHE_H_ 7 8 #include <map> 9 #include <set> 10 #include <vector> 11 12 #include "base/strings/string16.h" 13 14 namespace blink { 15 class WebDocument; 16 class WebFormControlElement; 17 class WebFormElement; 18 class WebFrame; 19 class WebInputElement; 20 class WebSelectElement; 21 } 22 23 namespace autofill { 24 25 struct FormData; 26 struct FormDataPredictions; 27 28 // Manages the forms in a RenderView. 29 class FormCache { 30 public: 31 FormCache(); 32 ~FormCache(); 33 34 // Scans the DOM in |frame| extracting and storing forms that have not been 35 // seen before. Fills |forms| with extracted forms. 36 void ExtractNewForms(const blink::WebFrame& frame, 37 std::vector<FormData>* forms); 38 39 // Resets the forms for the specified |frame|. 40 void ResetFrame(const blink::WebFrame& frame); 41 42 // Clears the values of all input elements in the form that contains 43 // |element|. Returns false if the form is not found. 44 bool ClearFormWithElement(const blink::WebFormControlElement& element); 45 46 // For each field in the |form|, sets the field's placeholder text to the 47 // field's overall predicted type. Also sets the title to include the field's 48 // heuristic type, server type, and signature; as well as the form's signature 49 // and the experiment id for the server predictions. 50 bool ShowPredictions(const FormDataPredictions& form); 51 52 private: 53 // The cached web frames. 54 std::set<blink::WebDocument> web_documents_; 55 56 // The cached forms per frame. Used to prevent re-extraction of forms. 57 std::map<const blink::WebFrame*, std::set<FormData> > parsed_forms_; 58 59 // The cached initial values for <select> elements. 60 std::map<const blink::WebSelectElement, base::string16> 61 initial_select_values_; 62 63 // The cached initial values for checkable <input> elements. 64 std::map<const blink::WebInputElement, bool> initial_checked_state_; 65 66 DISALLOW_COPY_AND_ASSIGN(FormCache); 67 }; 68 69 } // namespace autofill 70 71 #endif // COMPONENTS_AUTOFILL_CONTENT_RENDERER_FORM_CACHE_H_ 72