Revert "[ai-completion] LLM-14916 Disable completion for 3party provider if editor type is not main"

This reverts commit 10ada20b974002975fdb58cc116305dcc770ee97.

GitOrigin-RevId: 28aa79ccb24326a5ad5202049252087a8c50f782

Author: Petr Surkov

platform/platform-impl/codeinsight-inline/src/com/intellij/codeInsight/inline/completion/InlineCompletionHandler.kt

@@ -1,7 +1,6 @@
 // Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.codeInsight.inline.completion
 
-import com.intellij.codeInsight.inline.completion.editor.InlineCompletionEditorType
 import com.intellij.codeInsight.inline.completion.elements.InlineCompletionElement
 import com.intellij.codeInsight.inline.completion.listeners.InlineSessionWiseCaretListener
 import com.intellij.codeInsight.inline.completion.listeners.typing.InlineCompletionDocumentChangesTrackerImpl
@@ -39,20 +38,10 @@ import com.intellij.util.application
 import com.intellij.util.concurrency.ThreadingAssertions
 import com.intellij.util.concurrency.annotations.RequiresEdt
 import com.intellij.util.concurrency.annotations.RequiresWriteLock
-import kotlinx.coroutines.CancellationException
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.NonCancellable
-import kotlinx.coroutines.coroutineScope
-import kotlinx.coroutines.currentCoroutineContext
-import kotlinx.coroutines.ensureActive
+import kotlinx.coroutines.*
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.onEmpty
 import kotlinx.coroutines.flow.withIndex
-import kotlinx.coroutines.isActive
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.suspendCancellableCoroutine
-import kotlinx.coroutines.withContext
 import org.jetbrains.annotations.ApiStatus
 import org.jetbrains.annotations.ApiStatus.ScheduledForRemoval
 import org.jetbrains.annotations.TestOnly
@@ -419,10 +408,6 @@ abstract class InlineCompletionHandler @ApiStatus.Internal constructor(
         return false
       }
     }
-    val editorType = InlineCompletionEditorType.get(editor)
-    if (!isEditorTypeSupported(editorType)) {
-      return false
-    }
     return isEnabled(event)
   }
 

platform/platform-impl/codeinsight-inline/src/com/intellij/codeInsight/inline/completion/InlineCompletionProvider.kt

@@ -1,7 +1,6 @@
 // Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.codeInsight.inline.completion
 
-import com.intellij.codeInsight.inline.completion.editor.InlineCompletionEditorType
 import com.intellij.codeInsight.inline.completion.elements.InlineCompletionElement
 import com.intellij.codeInsight.inline.completion.session.InlineCompletionContext
 import com.intellij.codeInsight.inline.completion.session.InlineCompletionSession
@@ -11,7 +10,6 @@ import com.intellij.openapi.extensions.ExtensionPointName
 import com.intellij.util.concurrency.annotations.RequiresEdt
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.debounce
-import org.jetbrains.annotations.ApiStatus
 
 /**
  * Proposals provider for inline completion.
@@ -59,16 +57,6 @@ interface InlineCompletionProvider {
   val providerPresentation: InlineCompletionProviderPresentation
     get() = InlineCompletionProviderPresentation.dummy(this)
 
-  /**
-   * Determines whether the provider supports the given editor type.
-   * By default, only the main editor is supported.
-   *
-   * @param editorType The type of the editor to check
-   * @return True if the provider supports the given editor type, false otherwise
-   */
-  @ApiStatus.Internal
-  fun isEditorTypeSupported(editorType: InlineCompletionEditorType): Boolean = editorType == InlineCompletionEditorType.MAIN_EDITOR
-
   /**
    * Retrieves an inline completion suggestion based on the provided request.
    *

platform/platform-impl/codeinsight-inline/src/com/intellij/codeInsight/inline/completion/editor/InlineCompletionEditorType.kt

@@ -1,7 +1,6 @@
 // Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.codeInsight.inline.completion.editor
 
-import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.editor.ex.util.EditorUtil
 import com.intellij.openapi.extensions.ExtensionPointName
@@ -27,11 +26,6 @@ enum class InlineCompletionEditorType {
     @ApiStatus.Internal
     fun get(editor: Editor): InlineCompletionEditorType {
       editor.getUserData(forcedInlineCompletionEditorType)?.let { return it }
-      // Determining the editor type in unit tests is not possible.
-      // Therefore, MAIN_EDITOR is used if no other editor type is explicitly forced.
-      if (ApplicationManager.getApplication().isUnitTestMode) {
-        return MAIN_EDITOR
-      }
       if (EditorUtil.isRealFileEditor(editor)) {
         return MAIN_EDITOR
       }