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| 1 // Copyright 2017 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 #include "components/autofill/content/browser/key_press_handler_manager.h" |
| 6 |
| 7 namespace autofill { |
| 8 |
| 9 KeyPressHandlerManager::KeyPressHandlerManager(Delegate* delegate) |
| 10 : delegate_(delegate) {} |
| 11 |
| 12 KeyPressHandlerManager::~KeyPressHandlerManager() = default; |
| 13 |
| 14 void KeyPressHandlerManager::RegisterKeyPressHandler( |
| 15 const content::RenderWidgetHost::KeyPressEventCallback& handler) { |
| 16 // It would have been nice to be able to tell if two callbacks are just the |
| 17 // same function with the same bound arguments. That's not what Equals() does |
| 18 // (they have to have the same BindState), but it's the closest approximation |
| 19 // available. |
| 20 if (handler.is_null() || handler.Equals(handler_)) |
| 21 return; |
| 22 |
| 23 if (!handler_.is_null()) |
| 24 delegate_->RemoveHandler(handler_); |
| 25 handler_ = handler; |
| 26 delegate_->AddHandler(handler_); |
| 27 } |
| 28 |
| 29 void KeyPressHandlerManager::RemoveKeyPressHandler() { |
| 30 if (handler_.is_null()) |
| 31 return; |
| 32 |
| 33 delegate_->RemoveHandler(handler_); |
| 34 handler_.Reset(); |
| 35 } |
| 36 |
| 37 } // namespace autofill |
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