Extension api only called when bringing up the extensions sheet

app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/CatalogueController.kt

@@ -160,6 +160,9 @@ class CatalogueController : NucleusController<CataloguePresenter>(),
                         if (state == BottomSheetBehavior.STATE_COLLAPSED) 1f else 0f
                     showingExtenions = state == BottomSheetBehavior.STATE_EXPANDED
                     setTitle()
+                    if (state == BottomSheetBehavior.STATE_EXPANDED)
+                        ext_bottom_sheet.fetchOnlineExtensionsIfNeeded()
+                    else ext_bottom_sheet.shouldCallApi = true
                     activity?.invalidateOptionsMenu()
                 }
 
@@ -177,6 +180,7 @@ class CatalogueController : NucleusController<CataloguePresenter>(),
 
     fun showExtensions() {
         ext_bottom_sheet.sheetBehavior?.state = BottomSheetBehavior.STATE_EXPANDED
+        ext_bottom_sheet.fetchOnlineExtensionsIfNeeded()
     }
 
     fun toggleExtensions() {
@@ -184,6 +188,7 @@ class CatalogueController : NucleusController<CataloguePresenter>(),
             ext_bottom_sheet.sheetBehavior?.state = BottomSheetBehavior.STATE_COLLAPSED
         } else {
             ext_bottom_sheet.sheetBehavior?.state = BottomSheetBehavior.STATE_EXPANDED
+            ext_bottom_sheet.fetchOnlineExtensionsIfNeeded()
         }
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/extension/ExtensionBottomPresenter.kt

@@ -38,7 +38,7 @@ open class ExtensionBottomPresenter(
     private var currentDownloads = hashMapOf<String, InstallStep>()
 
     fun onCreate() {
-        extensionManager.findAvailableExtensions()
+        // extensionManager.findAvailableExtensions()
         bindToExtensionsObservable()
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/extension/ExtensionBottomSheet.kt

@@ -31,7 +31,9 @@ ExtensionAdapter.OnButtonClickListener,
     ExtensionTrustDialog.Listener {
 
     var sheetBehavior: BottomSheetBehavior<*>? = null
-    lateinit var autoCheckItem: AutoCheckItem
+    private lateinit var autoCheckItem: AutoCheckItem
+
+    var shouldCallApi = true
 
     /**
      * Adapter containing the list of manga from the catalogue.
@@ -71,6 +73,7 @@ ExtensionAdapter.OnButtonClickListener,
         sheet_layout.setOnClickListener {
             if (sheetBehavior?.state != BottomSheetBehavior.STATE_EXPANDED) {
                 sheetBehavior?.state = BottomSheetBehavior.STATE_EXPANDED
+                fetchOnlineExtensionsIfNeeded()
             } else {
                 sheetBehavior?.state = BottomSheetBehavior.STATE_COLLAPSED
             }
@@ -78,6 +81,13 @@ ExtensionAdapter.OnButtonClickListener,
         presenter.getExtensionUpdateCount()
     }
 
+    fun fetchOnlineExtensionsIfNeeded() {
+        if (shouldCallApi) {
+            presenter.findAvailableExtensions()
+            shouldCallApi = false
+        }
+    }
+
     fun updateExtTitle() {
         val extCount = presenter.getExtensionUpdateCount()
         title_text.text = if (extCount == 0) context.getString(R.string.label_extensions)