1 /*
2  * Copyright (c) 2021 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SLIDER_SLIDER_ELEMENT_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SLIDER_SLIDER_ELEMENT_H
18 
19 #include "core/components/slider/render_slider.h"
20 #include "core/pipeline/base/render_element.h"
21 
22 namespace OHOS::Ace {
23 
24 class SliderElement : public RenderElement, public FocusNode {
25     DECLARE_ACE_TYPE(SliderElement, RenderElement, FocusNode);
26 
27 public:
OnKeyEvent(const KeyEvent & keyEvent)28     bool OnKeyEvent(const KeyEvent& keyEvent) override
29     {
30         if (keyEvent.action != KeyAction::DOWN) {
31             return false;
32         }
33         auto renderSlider = AceType::DynamicCast<RenderSlider>(renderNode_);
34         return renderSlider && renderSlider->HandleFocusEvent(keyEvent);
35     }
36 
OnFocus()37     void OnFocus() override
38     {
39         slider_ = AceType::DynamicCast<RenderSlider>(renderNode_);
40         if (!slider_) {
41             LOGE("Render slider create error!");
42             return;
43         }
44         auto context = context_.Upgrade();
45         if (context && context->GetIsTabKeyPressed()) {
46             slider_->ChangeStatus(RenderStatus::FOCUS);
47             slider_->SetFocus(true);
48         }
49     }
50 
OnBlur()51     void OnBlur() override
52     {
53         if (!slider_) {
54             return;
55         }
56         slider_->ChangeStatus(RenderStatus::BLUR);
57         slider_->SetFocus(false);
58     }
59 
60 private:
61     RefPtr<RenderSlider> slider_;
62 };
63 
64 } // namespace OHOS::Ace
65 
66 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SLIDER_SLIDER_ELEMENT_H
67