| // Copyright 2020 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. |
| |
| /** This class handles interactions with sliders. */ |
| class SliderNode extends BasicNode { |
| /** |
| * @param {!AutomationNode} baseNode |
| * @param {?SARootNode} parent |
| */ |
| constructor(baseNode, parent) { |
| super(baseNode, parent); |
| this.isCustomSlider_ = !!baseNode.htmlAttributes.role; |
| } |
| |
| /** @override */ |
| onFocus() { |
| super.onFocus(); |
| this.automationNode.focus(); |
| } |
| |
| /** @override */ |
| performAction(action) { |
| // Currently, custom sliders have no way to support increment/decrement via |
| // the automation API. We handle this case by simulating left/right arrow |
| // presses. |
| if (this.isCustomSlider_) { |
| if (action === SwitchAccessMenuAction.INCREMENT) { |
| EventGenerator.sendKeyPress(KeyCode.RIGHT); |
| return SAConstants.ActionResponse.REMAIN_OPEN; |
| } else if (action === SwitchAccessMenuAction.DECREMENT) { |
| EventGenerator.sendKeyPress(KeyCode.LEFT); |
| return SAConstants.ActionResponse.REMAIN_OPEN; |
| } |
| } |
| |
| return super.performAction(action); |
| } |
| } |
