PY-59098 PY-52618 Package(fix): Show loading panel of packages

GitOrigin-RevId: c02550b976ec859bddb72313d9fbfd8ea8447a51

python/src/com/jetbrains/python/packaging/toolwindow/PyPackagingToolWindowPanel.kt

@@ -112,6 +112,7 @@ class PyPackagingToolWindowPanel(private val project: Project) : SimpleToolWindo
 
     val actionGroup = DefaultActionGroup()
     actionGroup.add(DumbAwareAction.create(message("python.toolwindow.packages.reload.repositories.action"), AllIcons.Actions.Refresh) {
+      startLoadingSdk()
       moduleController.rebuildList()
       service.reloadPackages()
     })
@@ -207,6 +208,11 @@ class PyPackagingToolWindowPanel(private val project: Project) : SimpleToolWindo
     this.packageListController.selectPackage(name)
   }
 
+  fun startLoadingSdk() {
+    this.descriptionController.setPackage(null)
+    packageListController.startSdkInit()
+  }
+
   companion object {
     private const val HORIZONTAL_SPLITTER_KEY = "Python.PackagingToolWindow.Horizontal"
     private const val VERTICAL_SPLITTER_KEY = "Python.PackagingToolWindow.Vertical"

python/src/com/jetbrains/python/packaging/toolwindow/PyPackagingToolWindowService.kt

@@ -4,6 +4,7 @@ package com.jetbrains.python.packaging.toolwindow
 import com.intellij.notification.NotificationGroupManager
 import com.intellij.notification.NotificationType
 import com.intellij.openapi.Disposable
+import com.intellij.openapi.application.EDT
 import com.intellij.openapi.application.readAction
 import com.intellij.openapi.components.Service
 import com.intellij.openapi.components.service
@@ -121,12 +122,24 @@ class PyPackagingToolWindowService(val project: Project, val serviceScope: Corou
   }
 
   internal suspend fun initForSdk(sdk: Sdk?) {
+    if (sdk == currentSdk)
+      return
+
+    withContext(Dispatchers.EDT) {
+      toolWindowPanel?.startLoadingSdk()
+    }
     val previousSdk = currentSdk
     currentSdk = sdk
+    if (sdk == null) {
+      return
+    }
+    manager = PythonPackageManager.forSdk(project, currentSdk!!)
+    manager.repositoryManager.initCaches()
+    manager.reloadPackages()
+
     if (currentSdk != null && currentSdk != previousSdk) {
-      manager = PythonPackageManager.forSdk(project, currentSdk!!)
-      manager.repositoryManager.initCaches()
-      manager.reloadPackages()
+
+
     }
     withContext(Dispatchers.Main) {
       toolWindowPanel?.contentVisible = currentSdk != null

python/src/com/jetbrains/python/packaging/toolwindow/packages/PyPackagesListController.kt

@@ -5,13 +5,18 @@ import com.intellij.openapi.Disposable
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.projectRoots.Sdk
 import com.intellij.openapi.ui.SimpleToolWindowPanel.LEFT_ALIGNMENT
+import com.intellij.ui.AnimatedIcon
 import com.intellij.ui.ScrollPaneFactory
+import com.intellij.ui.SimpleTextAttributes
+import com.intellij.ui.components.JBPanelWithEmptyText
 import com.intellij.util.ui.UIUtil
+import com.jetbrains.python.PyBundle.message
 import com.jetbrains.python.packaging.toolwindow.PyPackagingTablesView
 import com.jetbrains.python.packaging.toolwindow.PyPackagingToolWindowPanel
 import com.jetbrains.python.packaging.toolwindow.model.DisplayablePackage
 import com.jetbrains.python.packaging.toolwindow.model.InstalledPackage
 import com.jetbrains.python.packaging.toolwindow.model.PyPackagesViewData
+import java.awt.BorderLayout
 import javax.swing.BoxLayout
 import javax.swing.JPanel
 
@@ -24,16 +29,31 @@ class PyPackagesListController(val project: Project, val controller: PyPackaging
 
   private val tablesView = PyPackagingTablesView(project, packageListPanel, controller)
 
-  val component = ScrollPaneFactory.createScrollPane(packageListPanel, true)
+  val scrollingPackageListComponent = ScrollPaneFactory.createScrollPane(packageListPanel, true)
+
+  private val loadingPanel = JBPanelWithEmptyText().apply {
+    emptyText.appendLine(AnimatedIcon.Default.INSTANCE, message("python.toolwindow.packages.description.panel.loading"), SimpleTextAttributes.SIMPLE_CELL_ATTRIBUTES, null)
+  }
+
+
+  val component = JPanel().apply {
+    layout = BorderLayout()
+  }
+
+  init {
+    setLoadingState(true)
+  }
 
   override fun dispose() {}
 
   fun showSearchResult(installed: List<InstalledPackage>, repoData: List<PyPackagesViewData>) {
     tablesView.showSearchResult(installed, repoData)
+    setLoadingState(false)
   }
 
   fun resetSearch(installed: List<InstalledPackage>, repos: List<PyPackagesViewData>, currentSdk: Sdk?) {
     tablesView.resetSearch(installed, repos, currentSdk)
+    setLoadingState(false)
   }
 
   fun selectPackage(name: String) {
@@ -43,4 +63,20 @@ class PyPackagesListController(val project: Project, val controller: PyPackaging
   fun getSelectedPackages(): List<DisplayablePackage> {
     return tablesView.getSelectedPackages()
   }
+
+  fun startSdkInit() {
+    setLoadingState(true)
+  }
+
+  private fun setLoadingState(isLoading: Boolean) {
+    val newPanel = if (isLoading) loadingPanel else scrollingPackageListComponent
+
+    val currentComponent = component.components.firstOrNull()
+    if (currentComponent != newPanel) {
+      component.removeAll()
+      component.add(newPanel)
+      component.revalidate()
+      component.repaint()
+    }
+  }
 }