| // 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. |
| |
| #include "components/autofill/content/browser/key_press_handler_manager.h" |
| |
| namespace autofill { |
| |
| KeyPressHandlerManager::KeyPressHandlerManager(Delegate* delegate) |
| : delegate_(delegate) {} |
| |
| KeyPressHandlerManager::~KeyPressHandlerManager() = default; |
| |
| void KeyPressHandlerManager::RegisterKeyPressHandler( |
| const content::RenderWidgetHost::KeyPressEventCallback& handler) { |
| // It would have been nice to be able to tell if two callbacks are just the |
| // same function with the same bound arguments. That's not what Equals() does |
| // (they have to have the same BindState), but it's the closest approximation |
| // available. |
| if (handler.is_null() || handler.Equals(handler_)) |
| return; |
| |
| if (!handler_.is_null()) |
| delegate_->RemoveHandler(handler_); |
| handler_ = handler; |
| delegate_->AddHandler(handler_); |
| } |
| |
| void KeyPressHandlerManager::RemoveKeyPressHandler() { |
| if (handler_.is_null()) |
| return; |
| |
| delegate_->RemoveHandler(handler_); |
| handler_.Reset(); |
| } |
| |
| } // namespace autofill |
