src/main/kotlin/nbt/editor/NbtFileEditorProvider.kt diff

← → edited src/main/kotlin/nbt/editor/NbtFileEditorProvider.kt

Ignore whitespaces Open in IDE

⁠ kyle wood: Hopefully reduce IDE locking up when opening big NBT files

The main cause for the IDE locking up when opening big NBT files isn't
mcdev code. IntelliJ's threading model requires a lot of different
things, including all writes, to happen on the UI thread. In this commit
I move everything I possibly can off the UI thread, but there is still
some hanging when the IDE is parsing the NBTT file.

Relevant issue: #1893

Copy Copy

/*
* Minecraft Dev for IntelliJ
*
* https://minecraftdev.org
*
* Copyright (c) 2022 minecraft-dev
*
* MIT License
*/

package com.demonwav.mcdev.nbt.editor

import com.demonwav.mcdev.nbt.NbtVirtualFile
import com.demonwav.mcdev.nbt.filetype.NbtFileType
import com.demonwav.mcdev.nbt.lang.NbttFile
import com.demonwav.mcdev.util.invokeLater
import com.intellij.ide.actions.SaveAllAction
import com.intellij.openapi.actionSystem.AnAction
import com.intellij.openapi.actionSystem.AnActionEvent
import com.intellij.openapi.actionSystem.AnActionResult
import com.intellij.openapi.actionSystem.ex.AnActionListener
import com.intellij.openapi.command.UndoConfirmationPolicy
import com.intellij.openapi.command.WriteCommandAction
import com.intellij.openapi.fileEditor.FileEditor
import com.intellij.openapi.fileEditor.FileEditorManager
import com.intellij.openapi.fileEditor.FileEditorPolicy
import com.intellij.openapi.fileEditor.FileEditorState
import com.intellij.openapi.fileEditor.FileEditorStateLevel
import com.intellij.openapi.fileEditor.impl.NonProjectFileWritingAccessProvider
import com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorProvider
import com.intellij.openapi.fileEditor.impl.text.TextEditorState
import com.intellij.openapi.project.DumbAware
import com.intellij.openapi.project.Project
import com.intellij.openapi.util.Disposer
import com.intellij.openapi.util.Key
import com.intellij.openapi.vfs.VirtualFile
import com.intellij.psi.PsiManager
import com.intellij.psi.codeStyle.CodeStyleManager
import com.intellij.ui.components.JBLoadingPanel
import com.intellij.util.IncorrectOperationException
import java.awt.BorderLayout
import java.beans.PropertyChangeListener
import javax.swing.JPanel
import org.jetbrains.concurrency.runAsync

class NbtFileEditorProvider : PsiAwareTextEditorProvider(), DumbAware {
override fun getEditorTypeId() = EDITOR_TYPE_ID
override fun accept(project: Project, file: VirtualFile) = file.fileType == NbtFileType
override fun getPolicy() = FileEditorPolicy.NONE
override fun createEditor(project: Project, file: VirtualFile): FileEditor {
val fileEditor = NbtFileEditor(file) { nbtFile -> super.createEditor(project, nbtFile) }

runAsync {
val nbtFile = NbtVirtualFile(file, project)

if (NonProjectFileWritingAccessProvider.isWriteAccessAllowed(file, project)) {
NonProjectFileWritingAccessProvider.allowWriting(listOf(nbtFile))
}

invokeLater {
fileEditor.ready(nbtFile, project)
}
}

return fileEditor
}

companion object {
private const val EDITOR_TYPE_ID = "nbt_editor"
}
}

private class NbtFileEditor(
private val file: VirtualFile,
private val editorProvider: (NbtVirtualFile) -> FileEditor
) : FileEditor {

private var editor: FileEditor? = null
private val component = JPanel(BorderLayout())

init {
val loading = JBLoadingPanel(null, this)
loading.setLoadingText("Parsing NBT file")
loading.startLoading()
component.add(loading, BorderLayout.CENTER)
}

fun ready(nbtFile: NbtVirtualFile, project: Project) {
if (project.isDisposed) {
return
}

component.removeAll()

val toolbar = NbtToolbar(nbtFile)
nbtFile.toolbar = toolbar
editor = editorProvider(nbtFile)
editor?.let { editor ->
try {
Disposer.register(this, editor)
} catch (e: IncorrectOperationException) {
// The editor can be disposed really quickly when opening a large number of NBT files
// Since everything happens basically at the same time, calling Disposer.isDisposed right before
// returns false but #dispose throws this IOE...
Disposer.dispose(this)
return@let
}
component.add(toolbar.panel, BorderLayout.NORTH)
component.add(editor.component, BorderLayout.CENTER)
}

// This can be null if the file is too big to be parsed as a psi file
val psiFile = PsiManager.getInstance(project).findFile(nbtFile) as? NbttFile ?: return
WriteCommandAction.writeCommandAction(psiFile)
.shouldRecordActionForActiveDocument(false)
.withUndoConfirmationPolicy(UndoConfirmationPolicy.DO_NOT_REQUEST_CONFIRMATION)
.run<Throwable> {
CodeStyleManager.getInstance(project).reformat(psiFile, true)
}

project.messageBus.connect(this).subscribe(
AnActionListener.TOPIC,
object : AnActionListener {
override fun afterActionPerformed(action: AnAction, event: AnActionEvent, result: AnActionResult) {
if (action !is SaveAllAction) {
return
}

val selectedEditor = FileEditorManager.getInstance(project).selectedEditor ?: return

if (selectedEditor !is NbtFileEditor || selectedEditor.editor != editor) {
return
}

nbtFile.writeFile(this)
}
}
)
}

override fun isModified() = editor.exec { isModified } ?: false
override fun addPropertyChangeListener(listener: PropertyChangeListener) {
editor.exec { addPropertyChangeListener(listener) }
}

override fun getName() = editor.exec { name } ?: ""
override fun setState(state: FileEditorState) {
editor.exec { setState(state) }
}

override fun getState(level: FileEditorStateLevel): FileEditorState = editor.exec { getState(level) }
?: TextEditorState()

override fun getFile(): VirtualFile = editor.exec { file } ?: file

override fun getComponent() = component
override fun getPreferredFocusedComponent() = editor.exec { preferredFocusedComponent }
override fun <T : Any?> getUserData(key: Key<T>) = editor.exec { getUserData(key) }
override fun selectNotify() {
editor.exec { selectNotify() }
}

override fun <T : Any?> putUserData(key: Key<T>, value: T?) {
editor.exec { putUserData(key, value) }
}

override fun getCurrentLocation() = editor.exec { currentLocation }
override fun deselectNotify() {
editor.exec { deselectNotify() }
}

override fun getBackgroundHighlighter() = editor.exec { backgroundHighlighter }
override fun isValid() = editor.exec { isValid } ?: true
override fun removePropertyChangeListener(listener: PropertyChangeListener) {
editor.exec { removePropertyChangeListener(listener) }
}

override fun dispose() {}

override fun getStructureViewBuilder() = editor.exec { structureViewBuilder }
override fun equals(other: Any?) = other is NbtFileEditor && other.component == this.component
override fun hashCode() = editor.hashCode()
override fun toString() = editor.toString()

private inline fun <T : Any?> FileEditor?.exec(action: FileEditor.() -> T): T? {
if (editor?.let { ed -> Disposer.isDisposed(ed) } == true) {
return null
}
return this?.action()
}
}

/*
* Minecraft Dev for IntelliJ
*
* https://minecraftdev.org
*
* Copyright (c) 2022 minecraft-dev
*
* MIT License
*/

package com.demonwav.mcdev.nbt.editor

import com.demonwav.mcdev.nbt.NbtVirtualFile
import com.demonwav.mcdev.nbt.filetype.NbtFileType
import com.demonwav.mcdev.nbt.lang.NbttFile
import com.demonwav.mcdev.util.invokeAndWait
import com.demonwav.mcdev.util.invokeLater
import com.intellij.ide.actions.SaveAllAction
import com.intellij.openapi.actionSystem.AnAction
import com.intellij.openapi.actionSystem.AnActionEvent
import com.intellij.openapi.actionSystem.AnActionResult
import com.intellij.openapi.actionSystem.ex.AnActionListener
import com.intellij.openapi.application.runReadAction
import com.intellij.openapi.command.UndoConfirmationPolicy
import com.intellij.openapi.command.WriteCommandAction
import com.intellij.openapi.fileEditor.FileEditor
import com.intellij.openapi.fileEditor.FileEditorManager
import com.intellij.openapi.fileEditor.FileEditorPolicy
import com.intellij.openapi.fileEditor.FileEditorState
import com.intellij.openapi.fileEditor.FileEditorStateLevel
import com.intellij.openapi.fileEditor.impl.NonProjectFileWritingAccessProvider
import com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorProvider
import com.intellij.openapi.fileEditor.impl.text.TextEditorState
import com.intellij.openapi.project.DumbAware
import com.intellij.openapi.project.Project
import com.intellij.openapi.util.Disposer
import com.intellij.openapi.util.Key
import com.intellij.openapi.vfs.VirtualFile
import com.intellij.psi.PsiManager
import com.intellij.psi.codeStyle.CodeStyleManager
import com.intellij.ui.components.JBLoadingPanel
import com.intellij.util.IncorrectOperationException
import java.awt.BorderLayout
import java.beans.PropertyChangeListener
import javax.swing.JPanel
import org.jetbrains.concurrency.runAsync

class NbtFileEditorProvider : PsiAwareTextEditorProvider(), DumbAware {
override fun getEditorTypeId() = EDITOR_TYPE_ID
override fun accept(project: Project, file: VirtualFile) = file.fileType == NbtFileType
override fun getPolicy() = FileEditorPolicy.NONE
override fun createEditor(project: Project, file: VirtualFile): FileEditor {
val fileEditor = NbtFileEditor(file) { nbtFile ->
invokeAndWait {
super.createEditor(project, nbtFile)
}
}

runAsync {
val nbtFile = NbtVirtualFile(file, project)

if (NonProjectFileWritingAccessProvider.isWriteAccessAllowed(file, project)) {
NonProjectFileWritingAccessProvider.allowWriting(listOf(nbtFile))
}

fileEditor.ready(nbtFile, project)
}

return fileEditor
}

companion object {
private const val EDITOR_TYPE_ID = "nbt_editor"
}
}

private class NbtFileEditor(
private val file: VirtualFile,
private val editorProvider: (NbtVirtualFile) -> FileEditor
) : FileEditor {

private var editor: FileEditor? = null
private val component = JPanel(BorderLayout())

init {
val loading = JBLoadingPanel(null, this)
loading.setLoadingText("Parsing NBT file")
loading.startLoading()
component.add(loading, BorderLayout.CENTER)
}

fun ready(nbtFile: NbtVirtualFile, project: Project) {
if (project.isDisposed) {
return
}

component.removeAll()

val toolbar = NbtToolbar(nbtFile)
nbtFile.toolbar = toolbar
editor = invokeAndWait {
editorProvider(nbtFile)
}
editor?.let { editor ->
try {
Disposer.register(this, editor)
} catch (e: IncorrectOperationException) {
// The editor can be disposed really quickly when opening a large number of NBT files
// Since everything happens basically at the same time, calling Disposer.isDisposed right before
// returns false but #dispose throws this IOE...
Disposer.dispose(this)
return@let
}
invokeLater {
component.add(toolbar.panel, BorderLayout.NORTH)
component.add(editor.component, BorderLayout.CENTER)
}
}

// This can be null if the file is too big to be parsed as a psi file
val psiFile = runReadAction {
PsiManager.getInstance(project).findFile(nbtFile) as? NbttFile
} ?: return

WriteCommandAction.writeCommandAction(psiFile)
.shouldRecordActionForActiveDocument(false)
.withUndoConfirmationPolicy(UndoConfirmationPolicy.DO_NOT_REQUEST_CONFIRMATION)
.run<Throwable> {
CodeStyleManager.getInstance(project).reformat(psiFile, true)
}

project.messageBus.connect(this).subscribe(
AnActionListener.TOPIC,
object : AnActionListener {
override fun afterActionPerformed(action: AnAction, event: AnActionEvent, result: AnActionResult) {
if (action !is SaveAllAction) {
return
}

val selectedEditor = FileEditorManager.getInstance(project).selectedEditor ?: return

if (selectedEditor !is NbtFileEditor || selectedEditor.editor != editor) {
return
}

nbtFile.writeFile(this)
}
}
)
}

override fun isModified() = editor.exec { isModified } ?: false
override fun addPropertyChangeListener(listener: PropertyChangeListener) {
editor.exec { addPropertyChangeListener(listener) }
}

override fun getName() = editor.exec { name } ?: ""
override fun setState(state: FileEditorState) {
editor.exec { setState(state) }
}

override fun getState(level: FileEditorStateLevel): FileEditorState = editor.exec { getState(level) }
?: TextEditorState()

override fun getFile(): VirtualFile = editor.exec { file } ?: file

override fun getComponent() = component
override fun getPreferredFocusedComponent() = editor.exec { preferredFocusedComponent }
override fun <T : Any?> getUserData(key: Key<T>) = editor.exec { getUserData(key) }
override fun selectNotify() {
editor.exec { selectNotify() }
}

override fun <T : Any?> putUserData(key: Key<T>, value: T?) {
editor.exec { putUserData(key, value) }
}

override fun getCurrentLocation() = editor.exec { currentLocation }
override fun deselectNotify() {
editor.exec { deselectNotify() }
}

override fun getBackgroundHighlighter() = editor.exec { backgroundHighlighter }
override fun isValid() = editor.exec { isValid } ?: true
override fun removePropertyChangeListener(listener: PropertyChangeListener) {
editor.exec { removePropertyChangeListener(listener) }
}

override fun dispose() {}

override fun getStructureViewBuilder() = editor.exec { structureViewBuilder }
override fun equals(other: Any?) = other is NbtFileEditor && other.component == this.component
override fun hashCode() = editor.hashCode()
override fun toString() = editor.toString()

private inline fun <T : Any?> FileEditor?.exec(action: FileEditor.() -> T): T? {
if (editor?.let { ed -> Disposer.isDisposed(ed) } == true) {
return null
}
return this?.action()
}
}

/* * Minecraft Dev for IntelliJ * * https://minecraftdev.org * * Copyright (c) 2022 minecraft-dev * * MIT License */ package com.demonwav.mcdev.nbt.editor import com.demonwav.mcdev.nbt.NbtVirtualFile import com.demonwav.mcdev.nbt.filetype.NbtFileType import com.demonwav.mcdev.nbt.lang.NbttFile import com.demonwav.mcdev.util.invokeLater import com.intellij.ide.actions.SaveAllAction import com.intellij.openapi.actionSystem.AnAction import com.intellij.openapi.actionSystem.AnActionEvent import com.intellij.openapi.actionSystem.AnActionResult import com.intellij.openapi.actionSystem.ex.AnActionListener import com.intellij.openapi.command.UndoConfirmationPolicy import com.intellij.openapi.command.WriteCommandAction import com.intellij.openapi.fileEditor.FileEditor import com.intellij.openapi.fileEditor.FileEditorManager import com.intellij.openapi.fileEditor.FileEditorPolicy import com.intellij.openapi.fileEditor.FileEditorState import com.intellij.openapi.fileEditor.FileEditorStateLevel import com.intellij.openapi.fileEditor.impl.NonProjectFileWritingAccessProvider import com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorProvider import com.intellij.openapi.fileEditor.impl.text.TextEditorState import com.intellij.openapi.project.DumbAware import com.intellij.openapi.project.Project import com.intellij.openapi.util.Disposer import com.intellij.openapi.util.Key import com.intellij.openapi.vfs.VirtualFile import com.intellij.psi.PsiManager import com.intellij.psi.codeStyle.CodeStyleManager import com.intellij.ui.components.JBLoadingPanel import com.intellij.util.IncorrectOperationException import java.awt.BorderLayout import java.beans.PropertyChangeListener import javax.swing.JPanel import org.jetbrains.concurrency.runAsync class NbtFileEditorProvider : PsiAwareTextEditorProvider(), DumbAware { override fun getEditorTypeId() = EDITOR_TYPE_ID override fun accept(project: Project, file: VirtualFile) = file.fileType == NbtFileType override fun getPolicy() = FileEditorPolicy.NONE override fun createEditor(project: Project, file: VirtualFile): FileEditor { val fileEditor = NbtFileEditor(file) { nbtFile -> super.createEditor(project, nbtFile) } runAsync { val nbtFile = NbtVirtualFile(file, project) if (NonProjectFileWritingAccessProvider.isWriteAccessAllowed(file, project)) { NonProjectFileWritingAccessProvider.allowWriting(listOf(nbtFile)) } invokeLater { fileEditor.ready(nbtFile, project) } } return fileEditor } companion object { private const val EDITOR_TYPE_ID = "nbt_editor" } } private class NbtFileEditor( private val file: VirtualFile, private val editorProvider: (NbtVirtualFile) -> FileEditor ) : FileEditor { private var editor: FileEditor? = null private val component = JPanel(BorderLayout()) init { val loading = JBLoadingPanel(null, this) loading.setLoadingText("Parsing NBT file") loading.startLoading() component.add(loading, BorderLayout.CENTER) } fun ready(nbtFile: NbtVirtualFile, project: Project) { if (project.isDisposed) { return } component.removeAll() val toolbar = NbtToolbar(nbtFile) nbtFile.toolbar = toolbar editor = editorProvider(nbtFile) editor?.let { editor -> try { Disposer.register(this, editor) } catch (e: IncorrectOperationException) { // The editor can be disposed really quickly when opening a large number of NBT files // Since everything happens basically at the same time, calling Disposer.isDisposed right before // returns false but #dispose throws this IOE... Disposer.dispose(this) return@let } component.add(toolbar.panel, BorderLayout.NORTH) component.add(editor.component, BorderLayout.CENTER) } // This can be null if the file is too big to be parsed as a psi file val psiFile = PsiManager.getInstance(project).findFile(nbtFile) as? NbttFile ?: return WriteCommandAction.writeCommandAction(psiFile) .shouldRecordActionForActiveDocument(false) .withUndoConfirmationPolicy(UndoConfirmationPolicy.DO_NOT_REQUEST_CONFIRMATION) .run<Throwable> { CodeStyleManager.getInstance(project).reformat(psiFile, true) } project.messageBus.connect(this).subscribe( AnActionListener.TOPIC, object : AnActionListener { override fun afterActionPerformed(action: AnAction, event: AnActionEvent, result: AnActionResult) { if (action !is SaveAllAction) { return } val selectedEditor = FileEditorManager.getInstance(project).selectedEditor ?: return if (selectedEditor !is NbtFileEditor || selectedEditor.editor != editor) { return } nbtFile.writeFile(this) } } ) } override fun isModified() = editor.exec { isModified } ?: false override fun addPropertyChangeListener(listener: PropertyChangeListener) { editor.exec { addPropertyChangeListener(listener) } } override fun getName() = editor.exec { name } ?: "" override fun setState(state: FileEditorState) { editor.exec { setState(state) } } override fun getState(level: FileEditorStateLevel): FileEditorState = editor.exec { getState(level) } ?: TextEditorState() override fun getFile(): VirtualFile = editor.exec { file } ?: file override fun getComponent() = component override fun getPreferredFocusedComponent() = editor.exec { preferredFocusedComponent } override fun <T : Any?> getUserData(key: Key<T>) = editor.exec { getUserData(key) } override fun selectNotify() { editor.exec { selectNotify() } } override fun <T : Any?> putUserData(key: Key<T>, value: T?) { editor.exec { putUserData(key, value) } } override fun getCurrentLocation() = editor.exec { currentLocation } override fun deselectNotify() { editor.exec { deselectNotify() } } override fun getBackgroundHighlighter() = editor.exec { backgroundHighlighter } override fun isValid() = editor.exec { isValid } ?: true override fun removePropertyChangeListener(listener: PropertyChangeListener) { editor.exec { removePropertyChangeListener(listener) } } override fun dispose() {} override fun getStructureViewBuilder() = editor.exec { structureViewBuilder } override fun equals(other: Any?) = other is NbtFileEditor && other.component == this.component override fun hashCode() = editor.hashCode() override fun toString() = editor.toString() private inline fun <T : Any?> FileEditor?.exec(action: FileEditor.() -> T): T? { if (editor?.let { ed -> Disposer.isDisposed(ed) } == true) { return null } return this?.action() } } /* * Minecraft Dev for IntelliJ * * https://minecraftdev.org * * Copyright (c) 2022 minecraft-dev * * MIT License */ package com.demonwav.mcdev.nbt.editor import com.demonwav.mcdev.nbt.NbtVirtualFile import com.demonwav.mcdev.nbt.filetype.NbtFileType import com.demonwav.mcdev.nbt.lang.NbttFile import com.demonwav.mcdev.util.invokeAndWait import com.demonwav.mcdev.util.invokeLater import com.intellij.ide.actions.SaveAllAction import com.intellij.openapi.actionSystem.AnAction import com.intellij.openapi.actionSystem.AnActionEvent import com.intellij.openapi.actionSystem.AnActionResult import com.intellij.openapi.actionSystem.ex.AnActionListener import com.intellij.openapi.application.runReadAction import com.intellij.openapi.command.UndoConfirmationPolicy import com.intellij.openapi.command.WriteCommandAction import com.intellij.openapi.fileEditor.FileEditor import com.intellij.openapi.fileEditor.FileEditorManager import com.intellij.openapi.fileEditor.FileEditorPolicy import com.intellij.openapi.fileEditor.FileEditorState import com.intellij.openapi.fileEditor.FileEditorStateLevel import com.intellij.openapi.fileEditor.impl.NonProjectFileWritingAccessProvider import com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorProvider import com.intellij.openapi.fileEditor.impl.text.TextEditorState import com.intellij.openapi.project.DumbAware import com.intellij.openapi.project.Project import com.intellij.openapi.util.Disposer import com.intellij.openapi.util.Key import com.intellij.openapi.vfs.VirtualFile import com.intellij.psi.PsiManager import com.intellij.psi.codeStyle.CodeStyleManager import com.intellij.ui.components.JBLoadingPanel import com.intellij.util.IncorrectOperationException import java.awt.BorderLayout import java.beans.PropertyChangeListener import javax.swing.JPanel import org.jetbrains.concurrency.runAsync class NbtFileEditorProvider : PsiAwareTextEditorProvider(), DumbAware { override fun getEditorTypeId() = EDITOR_TYPE_ID override fun accept(project: Project, file: VirtualFile) = file.fileType == NbtFileType override fun getPolicy() = FileEditorPolicy.NONE override fun createEditor(project: Project, file: VirtualFile): FileEditor { val fileEditor = NbtFileEditor(file) { nbtFile -> invokeAndWait { super.createEditor(project, nbtFile) } } runAsync { val nbtFile = NbtVirtualFile(file, project) if (NonProjectFileWritingAccessProvider.isWriteAccessAllowed(file, project)) { NonProjectFileWritingAccessProvider.allowWriting(listOf(nbtFile)) } fileEditor.ready(nbtFile, project) } return fileEditor } companion object { private const val EDITOR_TYPE_ID = "nbt_editor" } } private class NbtFileEditor( private val file: VirtualFile, private val editorProvider: (NbtVirtualFile) -> FileEditor ) : FileEditor { private var editor: FileEditor? = null private val component = JPanel(BorderLayout()) init { val loading = JBLoadingPanel(null, this) loading.setLoadingText("Parsing NBT file") loading.startLoading() component.add(loading, BorderLayout.CENTER) } fun ready(nbtFile: NbtVirtualFile, project: Project) { if (project.isDisposed) { return } component.removeAll() val toolbar = NbtToolbar(nbtFile) nbtFile.toolbar = toolbar editor = invokeAndWait { editorProvider(nbtFile) } editor?.let { editor -> try { Disposer.register(this, editor) } catch (e: IncorrectOperationException) { // The editor can be disposed really quickly when opening a large number of NBT files // Since everything happens basically at the same time, calling Disposer.isDisposed right before // returns false but #dispose throws this IOE... Disposer.dispose(this) return@let } invokeLater { component.add(toolbar.panel, BorderLayout.NORTH) component.add(editor.component, BorderLayout.CENTER) } } // This can be null if the file is too big to be parsed as a psi file val psiFile = runReadAction { PsiManager.getInstance(project).findFile(nbtFile) as? NbttFile } ?: return WriteCommandAction.writeCommandAction(psiFile) .shouldRecordActionForActiveDocument(false) .withUndoConfirmationPolicy(UndoConfirmationPolicy.DO_NOT_REQUEST_CONFIRMATION) .run<Throwable> { CodeStyleManager.getInstance(project).reformat(psiFile, true) } project.messageBus.connect(this).subscribe( AnActionListener.TOPIC, object : AnActionListener { override fun afterActionPerformed(action: AnAction, event: AnActionEvent, result: AnActionResult) { if (action !is SaveAllAction) { return } val selectedEditor = FileEditorManager.getInstance(project).selectedEditor ?: return if (selectedEditor !is NbtFileEditor || selectedEditor.editor != editor) { return } nbtFile.writeFile(this) } } ) } override fun isModified() = editor.exec { isModified } ?: false override fun addPropertyChangeListener(listener: PropertyChangeListener) { editor.exec { addPropertyChangeListener(listener) } } override fun getName() = editor.exec { name } ?: "" override fun setState(state: FileEditorState) { editor.exec { setState(state) } } override fun getState(level: FileEditorStateLevel): FileEditorState = editor.exec { getState(level) } ?: TextEditorState() override fun getFile(): VirtualFile = editor.exec { file } ?: file override fun getComponent() = component override fun getPreferredFocusedComponent() = editor.exec { preferredFocusedComponent } override fun <T : Any?> getUserData(key: Key<T>) = editor.exec { getUserData(key) } override fun selectNotify() { editor.exec { selectNotify() } } override fun <T : Any?> putUserData(key: Key<T>, value: T?) { editor.exec { putUserData(key, value) } } override fun getCurrentLocation() = editor.exec { currentLocation } override fun deselectNotify() { editor.exec { deselectNotify() } } override fun getBackgroundHighlighter() = editor.exec { backgroundHighlighter } override fun isValid() = editor.exec { isValid } ?: true override fun removePropertyChangeListener(listener: PropertyChangeListener) { editor.exec { removePropertyChangeListener(listener) } } override fun dispose() {} override fun getStructureViewBuilder() = editor.exec { structureViewBuilder } override fun equals(other: Any?) = other is NbtFileEditor && other.component == this.component override fun hashCode() = editor.hashCode() override fun toString() = editor.toString() private inline fun <T : Any?> FileEditor?.exec(action: FileEditor.() -> T): T? { if (editor?.let { ed -> Disposer.isDisposed(ed) } == true) { return null } return this?.action() } }

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