| // Copyright 2017 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_UI_VIEWS_PAYMENTS_VALIDATION_DELEGATE_H_ |
| #define CHROME_BROWSER_UI_VIEWS_PAYMENTS_VALIDATION_DELEGATE_H_ |
| |
| #include "base/strings/string16.h" |
| |
| namespace views { |
| class Combobox; |
| class Textfield; |
| } // namespace views |
| |
| namespace payments { |
| |
| // Handles text field validation and formatting. |
| class ValidationDelegate { |
| public: |
| virtual ~ValidationDelegate(); |
| |
| virtual bool ShouldFormat(); |
| virtual base::string16 Format(const base::string16& text); |
| |
| // Only the delegate knows how to validate the input fields. |
| virtual bool IsValidTextfield(views::Textfield* textfield, |
| base::string16* error_message) = 0; |
| virtual bool IsValidCombobox(views::Combobox* combobox, |
| base::string16* error_message) = 0; |
| |
| // Notifications to let delegate react to input field changes and also let |
| // caller know if the new values are valid. |was_blurred| indicates if the |
| // field has yet to be blurred once by the user. |
| virtual bool TextfieldValueChanged(views::Textfield* textfield, |
| bool was_blurred) = 0; |
| virtual bool ComboboxValueChanged(views::Combobox* combobox) = 0; |
| |
| // Lets the delegate know that the model of the combobox has changed, e.g., |
| // when it gets filled asynchronously as for the state field. |
| virtual void ComboboxModelChanged(views::Combobox* combobox) = 0; |
| }; |
| |
| } // namespace payments |
| |
| #endif // CHROME_BROWSER_UI_VIEWS_PAYMENTS_VALIDATION_DELEGATE_H_ |