From 3a62be23f3202a3c0c354e039f37f685f6ac44d3 Mon Sep 17 00:00:00 2001
From: jiadexiang <jiadexiang@huawei.com>
Date: Sat, 11 Dec 2021 12:17:25 +0800
Subject: [PATCH] Description: add component visible status change notify logic
 IssueNo: I4M2B3 Feature or Bugfix: Feature Binary Source:No

Signed-off-by: jiadexiang <jiadexiang@huawei.com>
---
 frameworks/src/core/components/component.h       |  4 ++++
 .../src/core/components/swiper_component.cpp     | 16 ++++++++++++++++
 .../src/core/components/swiper_component.h       |  1 +
 frameworks/src/core/context/fatal_handler.cpp    | 11 +++++++++++
 frameworks/src/core/context/fatal_handler.h      |  1 +
 frameworks/src/core/context/js_ability_impl.cpp  |  2 ++
 6 files changed, 35 insertions(+)

diff --git a/frameworks/src/core/components/component.h b/frameworks/src/core/components/component.h
index a30fea84..56a04926 100755
--- a/frameworks/src/core/components/component.h
+++ b/frameworks/src/core/components/component.h
@@ -173,6 +173,10 @@ public:
     {
         UNUSED(child);
     }
+    /**
+     * @brief OnVisibleChanged the component can be notified if the visibility status is changed
+     */
+    virtual void OnVisibilityChanged(bool isVisible) {}
     /**
      * @brief OnViewAttached called when the native view is attached to the tree
      */
diff --git a/frameworks/src/core/components/swiper_component.cpp b/frameworks/src/core/components/swiper_component.cpp
index 6c148f05..311e82a8 100755
--- a/frameworks/src/core/components/swiper_component.cpp
+++ b/frameworks/src/core/components/swiper_component.cpp
@@ -105,6 +105,22 @@ void SwiperComponent::AttachView(const Component *child)
     SetPageIndex();
 }
 
+void SwiperComponent::OnVisibilityChanged(bool isVisible)
+{
+    if (changeListener_ == nullptr) {
+        return;
+    }
+    if (!isVisible) {
+        swiperView_.SetOnSwipeListener(nullptr);
+        return;
+    }
+    // component will be visible
+    if (swiperView_.GetOnSwipeListener() != nullptr) {
+        return;
+    }
+    swiperView_.SetOnSwipeListener(changeListener_);
+}
+
 bool SwiperComponent::RegisterPrivateEventListener(uint16_t eventTypeId,
                                                    jerry_value_t funcValue,
                                                    bool isStopPropagation)
diff --git a/frameworks/src/core/components/swiper_component.h b/frameworks/src/core/components/swiper_component.h
index fde1893e..cd94474b 100644
--- a/frameworks/src/core/components/swiper_component.h
+++ b/frameworks/src/core/components/swiper_component.h
@@ -38,6 +38,7 @@ protected:
     bool ProcessChildren() override;
     bool RegisterPrivateEventListener(uint16_t eventTypeId, jerry_value_t funcValue, bool isStopPropagation) override;
     void AttachView(const Component *child) override;
+    void OnVisibilityChanged(bool isVisible) override;
 
 private:
     class ChangeListener : public UISwipeView::OnSwipeListener {
diff --git a/frameworks/src/core/context/fatal_handler.cpp b/frameworks/src/core/context/fatal_handler.cpp
index 41da0f4e..98a2e579 100644
--- a/frameworks/src/core/context/fatal_handler.cpp
+++ b/frameworks/src/core/context/fatal_handler.cpp
@@ -362,5 +362,16 @@ uint16_t FatalHandler::GetComponentCount() const
 {
     return componentNodes_.Size();
 }
+
+void FatalHandler::NotifyVisibleStatusChange(bool isVisible) const
+{
+    ListNode<Component *> *node = componentNodes_.Begin();
+    while (node != componentNodes_.End()) {
+        if (node->data_ != nullptr) {
+            node->data_->OnVisibilityChanged(isVisible);
+        }
+        node = node->next_;
+    }
+}
 } // namespace ACELite
 } // namespace OHOS
diff --git a/frameworks/src/core/context/fatal_handler.h b/frameworks/src/core/context/fatal_handler.h
index daa866ab..f4609a38 100644
--- a/frameworks/src/core/context/fatal_handler.h
+++ b/frameworks/src/core/context/fatal_handler.h
@@ -52,6 +52,7 @@ public:
     void SetCurrentPageRootView(UIView *pageRoot);
     void DumpFatalTrace(int errorCode) const;
     uint16_t GetComponentCount() const;
+    void NotifyVisibleStatusChange(bool isVisible) const;
     // define all fatal error below, please note the jerry fatal defines, avoid conflicts
     static const int ERR_INVALID = 0;
     static const int ERR_NATIVE_OUT_OF_MEMORY = 200;
diff --git a/frameworks/src/core/context/js_ability_impl.cpp b/frameworks/src/core/context/js_ability_impl.cpp
index 579dec49..505e7de4 100644
--- a/frameworks/src/core/context/js_ability_impl.cpp
+++ b/frameworks/src/core/context/js_ability_impl.cpp
@@ -137,6 +137,7 @@ void JSAbilityImpl::Show() const
         return;
     }
     router_->Show();
+    FatalHandler::GetInstance().NotifyVisibleStatusChange(true);
 }
 
 void JSAbilityImpl::Hide() const
@@ -146,6 +147,7 @@ void JSAbilityImpl::Hide() const
         return;
     }
     router_->Hide();
+    FatalHandler::GetInstance().NotifyVisibleStatusChange(false);
 }
 
 void JSAbilityImpl::NotifyBackPressed() const
-- 
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