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

@@ -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
      */

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)

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 {

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

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;

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