1 // Copyright 2014 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_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_STORE_CONSUMER_H_ 6 #define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_STORE_CONSUMER_H_ 7 8 #include <vector> 9 10 #include "base/task/cancelable_task_tracker.h" 11 12 namespace autofill { 13 struct PasswordForm; 14 } 15 16 namespace password_manager { 17 18 // Reads from the PasswordStore are done asynchronously on a separate 19 // thread. PasswordStoreConsumer provides the virtual callback method, which is 20 // guaranteed to be executed on this (the UI) thread. It also provides the 21 // base::CancelableTaskTracker member, which cancels any outstanding 22 // tasks upon destruction. 23 class PasswordStoreConsumer { 24 public: 25 PasswordStoreConsumer(); 26 27 // Called when the request is finished. If there are no results, it is called 28 // with an empty vector. 29 // Note: The implementation owns all PasswordForms in the vector. 30 virtual void OnGetPasswordStoreResults( 31 const std::vector<autofill::PasswordForm*>& results) = 0; 32 33 // The base::CancelableTaskTracker can be used for cancelling the 34 // tasks associated with the consumer. cancelable_task_tracker()35 base::CancelableTaskTracker* cancelable_task_tracker() { 36 return &cancelable_task_tracker_; 37 } 38 GetWeakPtr()39 base::WeakPtr<PasswordStoreConsumer> GetWeakPtr() { 40 return weak_ptr_factory_.GetWeakPtr(); 41 } 42 43 protected: 44 virtual ~PasswordStoreConsumer(); 45 46 private: 47 base::CancelableTaskTracker cancelable_task_tracker_; 48 base::WeakPtrFactory<PasswordStoreConsumer> weak_ptr_factory_; 49 }; 50 51 } // namespace password_manager 52 53 #endif // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_STORE_CONSUMER_H_ 54