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 WebFormElement; 17 class WebFrame; 18 class WebInputElement; 19 class WebSelectElement; 20 } 21 22 namespace autofill { 23 24 struct FormData; 25 struct FormDataPredictions; 26 27 // Manages the forms in a RenderView. 28 class FormCache { 29 public: 30 FormCache(); 31 ~FormCache(); 32 33 // Scans the DOM in |frame| extracting and storing forms. 34 // Fills |forms| with extracted forms. 35 void ExtractForms(const blink::WebFrame& frame, 36 std::vector<FormData>* forms); 37 38 // Scans the DOM in |frame| extracting and storing forms. 39 // Fills |forms| with extracted forms and |web_form_elements| with associated 40 // web form elements. Returns true if there are unextracted forms due to 41 // |minimum_required_fields| limit, else false. 42 bool ExtractFormsAndFormElements( 43 const blink::WebFrame& frame, 44 size_t minimum_required_fields, 45 std::vector<FormData>* forms, 46 std::vector<blink::WebFormElement>* web_form_elements); 47 48 // Resets the forms for the specified |frame|. 49 void ResetFrame(const blink::WebFrame& frame); 50 51 // Clears the values of all input elements in the form that contains 52 // |element|. Returns false if the form is not found. 53 bool ClearFormWithElement(const blink::WebInputElement& element); 54 55 // For each field in the |form|, sets the field's placeholder text to the 56 // field's overall predicted type. Also sets the title to include the field's 57 // heuristic type, server type, and signature; as well as the form's signature 58 // and the experiment id for the server predictions. 59 bool ShowPredictions(const FormDataPredictions& form); 60 61 private: 62 // The cached web frames. 63 std::set<blink::WebDocument> web_documents_; 64 65 // The cached initial values for <select> elements. 66 std::map<const blink::WebSelectElement, base::string16> 67 initial_select_values_; 68 69 // The cached initial values for checkable <input> elements. 70 std::map<const blink::WebInputElement, bool> initial_checked_state_; 71 72 DISALLOW_COPY_AND_ASSIGN(FormCache); 73 }; 74 75 } // namespace autofill 76 77 #endif // COMPONENTS_AUTOFILL_CONTENT_RENDERER_FORM_CACHE_H_ 78