Add an IntelliJ 2026.1 MockEditorFactoryEx compatibility API.

Author: rhdunn

src/intellij-test/build.gradle.kts

@@ -7,8 +7,6 @@ version = ijVersion.buildVersion.toString()
 sourceSets.main {
     java.srcDir("main")
 
-    java.srcDir("compat/242/native")
-
     if (ijVersion.buildVersion >= 243) {
         java.srcDir("compat/243/native")
     } else {
@@ -27,6 +25,12 @@ sourceSets.main {
         java.srcDir("compat/253/compat")
     }
 
+    if (ijVersion.buildVersion >= 261) {
+        java.srcDir("compat/261/native")
+    } else {
+        java.srcDir("compat/261/compat")
+    }
+
     if (ijVersion.buildVersion >= 253) {
         java.srcDir("compat/233-253/253")
     } else if (ijVersion.buildVersion >= 252) {

…core/tests/editor/MockEditorFactoryEx.kt …core/tests/editor/MockEditorFactoryEx.ktsrc/intellij-test/compat/242/native/uk/co/reecedunn/intellij/plugin/core/tests/editor/MockEditorFactoryEx.kt renamed to src/intellij-test/compat/261/compat/uk/co/reecedunn/intellij/plugin/core/tests/editor/MockEditorFactoryEx.kt src/intellij-test/compat/242/native/uk/co/reecedunn/intellij/plugin/core/tests/editor/MockEditorFactoryEx.kt renamed to src/intellij-test/compat/261/compat/uk/co/reecedunn/intellij/plugin/core/tests/editor/MockEditorFactoryEx.kt

@@ -0,0 +1,78 @@
+// Copyright (C) 2019-2021, 2025 Reece H. Dunn. SPDX-License-Identifier: Apache-2.0
+package uk.co.reecedunn.intellij.plugin.core.tests.editor
+
+import com.intellij.mock.MockEditorEventMulticaster
+import com.intellij.openapi.Disposable
+import com.intellij.openapi.editor.Document
+import com.intellij.openapi.editor.Editor
+import com.intellij.openapi.editor.EditorFactory
+import com.intellij.openapi.editor.EditorKind
+import com.intellij.openapi.editor.event.EditorEventMulticaster
+import com.intellij.openapi.editor.event.EditorFactoryListener
+import com.intellij.openapi.editor.impl.DocumentImpl
+import com.intellij.openapi.fileTypes.FileType
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.vfs.VirtualFile
+import com.intellij.util.text.CharArrayCharSequence
+import java.util.stream.Stream
+
+class MockEditorFactoryEx : EditorFactory() {
+    override fun createDocument(text: CharSequence): Document = DocumentImpl(text)
+
+    override fun createDocument(text: CharArray): Document = DocumentImpl(CharArrayCharSequence(text, 0, text.size))
+
+    override fun createDocument(p0: Boolean): Document = TODO()
+
+    override fun createDocument(p0: CharSequence, p1: Boolean, p2: Boolean): Document = TODO()
+
+    override fun createEditor(document: Document): Editor = MockEditor(document)
+
+    override fun createViewer(document: Document): Editor? = null
+
+    override fun createEditor(document: Document, project: Project?): Editor? = null
+
+    override fun createEditor(document: Document, project: Project?, kind: EditorKind): Editor? = null
+
+    override fun createEditor(
+        document: Document, project: Project?, fileType: FileType, isViewer: Boolean
+    ): Editor? = null
+
+    override fun createEditor(
+        document: Document, project: Project?, file: VirtualFile, isViewer: Boolean
+    ): Editor? = null
+
+    override fun createEditor(
+        document: Document, project: Project?, file: VirtualFile, isViewer: Boolean, kind: EditorKind
+    ): Editor? = null
+
+    override fun createViewer(document: Document, project: Project?): Editor? = null
+
+    override fun createViewer(document: Document, project: Project?, kind: EditorKind): Editor? = null
+
+    override fun releaseEditor(editor: Editor) {
+    }
+
+    override fun editors(document: Document, project: Project?): Stream<Editor> = Stream.empty()
+
+    override fun getAllEditors(): Array<Editor> = arrayOf()
+
+    override fun getEditorList(): List<Editor> = listOf()
+
+    @Deprecated("Deprecated in Java")
+    @Suppress("removal")
+    override fun addEditorFactoryListener(listener: EditorFactoryListener) {
+    }
+
+    override fun addEditorFactoryListener(listener: EditorFactoryListener, parentDisposable: Disposable) {
+    }
+
+    @Deprecated("Deprecated in Java")
+    @Suppress("removal")
+    override fun removeEditorFactoryListener(listener: EditorFactoryListener) {
+    }
+
+    override fun getEventMulticaster(): EditorEventMulticaster = MockEditorEventMulticaster()
+
+    override fun refreshAllEditors() {
+    }
+}