[platform] IJPL-224518 Cleanup private modifier usages with extensions/services in intellij.platform.diff.impl

GitOrigin-RevId: 2a06052b967e8d6e74bba1828e5a98f589bc14eb

platform/diff-impl/src/com/intellij/diff/actions/ShowBlankDiffWindowAction.kt

@@ -138,7 +138,7 @@ internal class SwitchToRecentEditorActionGroup : ActionGroup(), DumbAware {
     return ActionUpdateThread.EDT
   }
 
-  private class MySwitchAction(val content: RecentBlankContent) : BlankSwitchContentActionBase() {
+  internal class MySwitchAction(val content: RecentBlankContent) : BlankSwitchContentActionBase() {
     init {
       templatePresentation.setTextWithMnemonic {
         val text = content.text

platform/diff-impl/src/com/intellij/diff/applications/DiffApplication.kt

@@ -34,7 +34,7 @@ import kotlinx.coroutines.withContext
 import java.awt.event.WindowAdapter
 import java.awt.event.WindowEvent
 
-private class DiffApplication : ApplicationStarterBase(/* ...possibleArgumentsCount = */ 0, 2, 3) {
+internal class DiffApplication : ApplicationStarterBase(/* ...possibleArgumentsCount = */ 0, 2, 3) {
   override val commandName: String get() = "diff"
   override val usageMessage: String
     get() {

platform/diff-impl/src/com/intellij/diff/editor/DefaultDiffFileEditorCustomizer.kt

@@ -18,7 +18,7 @@ internal val IS_DIFF_FILE_EDITOR: Key<Boolean> = Key.create("IS_DEFAULT_DIFF_EDI
 @ApiStatus.Internal
 val CUSTOM_DIFF_ESCAPE_HANDLER: Key<AnAction> = Key.create("CUSTOM_DIFF_ESCAPE_HANDLER")
 
-private class DefaultDiffFileEditorCustomizer : DiffRequestProcessorEditorCustomizer {
+internal class DefaultDiffFileEditorCustomizer : DiffRequestProcessorEditorCustomizer {
   override fun customize(file: VirtualFile, editor: FileEditor, context: DiffContext) {
     registerEscapeAction(editor)
 
@@ -44,9 +44,9 @@ private class DefaultDiffFileEditorCustomizer : DiffRequestProcessorEditorCustom
   }
 }
 
-private class DiffEditorEscapeDelegatingAction(delegate: AnAction) : AnActionWrapper(delegate), DiffEditorEscapeAction
+internal class DiffEditorEscapeDelegatingAction(delegate: AnAction) : AnActionWrapper(delegate), DiffEditorEscapeAction
 
-private class CloseDiffEditorAction : DumbAwareAction(), DiffEditorEscapeAction, ActionRemoteBehaviorSpecification.Frontend {
+internal class CloseDiffEditorAction : DumbAwareAction(), DiffEditorEscapeAction, ActionRemoteBehaviorSpecification.Frontend {
   override fun getActionUpdateThread(): ActionUpdateThread = ActionUpdateThread.EDT
 
   override fun update(e: AnActionEvent) {

platform/diff-impl/src/com/intellij/diff/editor/DiffEditorTabTitleProvider.kt

@@ -13,7 +13,7 @@ import com.intellij.openapi.util.text.StringUtil
 import com.intellij.openapi.vfs.VirtualFile
 import org.jetbrains.annotations.CalledInAny
 
-private class DiffEditorTabTitleProvider : EditorTabTitleProvider, DumbAware {
+internal class DiffEditorTabTitleProvider : EditorTabTitleProvider, DumbAware {
   override fun getEditorTabTitle(project: Project, file: VirtualFile): @NlsContexts.TabTitle String? {
     val title = getEditorTabName(project, file) ?: return null
     return shortenTitleIfNeeded(project, file, title)

platform/diff-impl/src/com/intellij/diff/editor/DiffFileEditorProvider.kt

@@ -16,7 +16,7 @@ import org.jetbrains.annotations.NonNls
 @NonNls
 private const val DIFF_EDITOR_PROVIDER_ID = "DiffEditor"
 
-private class DiffFileEditorProvider : DefaultPlatformFileEditorProvider, StructureViewFileEditorProvider, DumbAware {
+internal class DiffFileEditorProvider : DefaultPlatformFileEditorProvider, StructureViewFileEditorProvider, DumbAware {
   override fun accept(project: Project, file: VirtualFile): Boolean = file is DiffViewerVirtualFile
 
   override fun acceptRequiresReadAction() = false

platform/diff-impl/src/com/intellij/diff/editor/DiffFileIconProvider.kt

@@ -7,7 +7,7 @@ import com.intellij.openapi.project.Project
 import com.intellij.openapi.vfs.VirtualFile
 import javax.swing.Icon
 
-private class DiffFileIconProvider : FileIconProvider {
+internal class DiffFileIconProvider : FileIconProvider {
   override fun getIcon(file: VirtualFile, flags: Int, project: Project?): Icon? {
     if (file is DiffVirtualFileBase) {
       return AllIcons.Actions.Diff

platform/diff-impl/src/com/intellij/diff/merge/MergeThreesideLineStatusMarkerRenderer.kt

@@ -64,7 +64,7 @@ internal class MergeThreesideLineStatusMarkerRenderer(private val tracker: LineS
   }
 }
 
-private class RollbackLineStatusRangeAction(editor: Editor, private val tracker: LineStatusTrackerBase<*>, range: Range) :
+internal class RollbackLineStatusRangeAction(editor: Editor, private val tracker: LineStatusTrackerBase<*>, range: Range) :
   LineStatusMarkerPopupActions.RangeMarkerAction(editor, tracker, range, IdeActions.SELECTED_CHANGES_ROLLBACK) {
   override fun isEnabled(editor: Editor, range: Range): Boolean {
     return true

platform/diff-impl/src/com/intellij/diff/tools/combined/CombinedDiffBlocks.kt

@@ -137,8 +137,8 @@ private class CombinedSimpleDiffHeader(project: Project,
   override fun getSelectionBackground(state: State): Color = CombinedDiffUI.BLOCK_HEADER_BACKGROUND
   override fun changeBackgroundOnHover(state: State): Boolean = true
 
-  private class SelectableFilePathLabel(private val project: Project,
-                                        private val path: FilePath) : DumbAwareAction(), CustomComponentAction {
+  internal class SelectableFilePathLabel(private val project: Project,
+                                         private val path: FilePath) : DumbAwareAction(), CustomComponentAction {
 
     private val checkBox = CheckBox("").apply { background = UIUtil.getListBackground() }
 

platform/diff-impl/src/com/intellij/diff/tools/combined/CombinedDiffMainUI.kt

@@ -187,7 +187,7 @@ class CombinedDiffMainUI(private val model: CombinedDiffModel, private val goToC
     }
   }
 
-  private class MyDiffToolChooser(
+  internal class MyDiffToolChooser(
     val context: DiffContext,
     val model: CombinedDiffModel,
     val settings: DiffSettings,
@@ -291,7 +291,7 @@ class CombinedDiffMainUI(private val model: CombinedDiffModel, private val goToC
   }
 }
 
-private class ShowActionGroupPopupAction(
+internal class ShowActionGroupPopupAction(
   private val parentComponent: JComponent,
   private val popupActionGroup: DefaultActionGroup
 ) : DumbAwareAction() {

platform/diff-impl/src/com/intellij/diff/tools/combined/CombinedDiffTool.kt

@@ -14,7 +14,7 @@ internal interface CombinedDiffTool : DiffTool
  * This tool intended only for persistence purpose.
  * Combined diff viewer will be created by the corresponding [CombinedDiffComponentProcessor].
  */
-private class CombinedSideBySideDiffTool : CombinedDiffTool {
+internal class CombinedSideBySideDiffTool : CombinedDiffTool {
   override fun canShow(context: DiffContext, request: DiffRequest): Boolean = false
 
   override fun getName(): String = DiffBundle.message("combined.side.by.side.viewer")

platform/diff-impl/src/com/intellij/openapi/vcs/changes/EditorTabDiffPreview.kt

@@ -120,7 +120,7 @@ abstract class EditorTabDiffPreview(val project: Project) : CheckedDisposable, D
     }
   }
 
-  private class DiffEditorPreviewEscapeAction(preview: EditorTabDiffPreview) : DumbAwareAction(), DiffEditorEscapeAction {
+  internal class DiffEditorPreviewEscapeAction(preview: EditorTabDiffPreview) : DumbAwareAction(), DiffEditorEscapeAction {
     private val previewRef: WeakReference<EditorTabDiffPreview> = WeakReference(preview)
 
     override fun getActionUpdateThread(): ActionUpdateThread = ActionUpdateThread.BGT

platform/diff-impl/src/com/intellij/openapi/vcs/ex/LineStatusMarkerPopupService.kt

@@ -237,7 +237,7 @@ private fun closeActivePopup() {
   LineStatusMarkerPopupService.instance.closeActivePopup()
 }
 
-private class LineStatusMakerEscEditorHandler(private val delegate: EditorActionHandler) : EditorActionHandler() {
+internal class LineStatusMakerEscEditorHandler(private val delegate: EditorActionHandler) : EditorActionHandler() {
   override fun isEnabledForCaret(editor: Editor, caret: Caret, dataContext: DataContext?): Boolean {
     return delegate.isEnabled(editor, caret, dataContext)
   }