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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 26 Nov 2017 13:19:58 -0500
Subject: [PATCH] AsyncTabCompleteEvent
Let plugins be able to control tab completion of commands and chat async.
This will be useful for frameworks like ACF so we can define async safe completion handlers,
and avoid going to main for tab completions.
Especially useful if you need to query a database in order to obtain the results for tab
completion, such as offline players.
Also adds isCommand and getLocation to the sync TabCompleteEvent
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 898846546819ff71586cc1e038140047d2797e33..c795469d3221505faeabb5d06f35549c161f4f48 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -701,10 +701,10 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
@Override
public void handleCustomCommandSuggestions(ServerboundCommandSuggestionPacket packet) {
- PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());
+ // PlayerConnectionUtils.ensureMainThread(packetplayintabcomplete, this, this.player.getWorldServer()); // Paper - run this async
// CraftBukkit start
if (this.chatSpamTickCount.addAndGet(1) > 500 && !this.server.getPlayerList().isOp(this.player.getGameProfile())) {
- this.disconnect(new TranslatableComponent("disconnect.spam", new Object[0]));
+ server.scheduleOnMain(() -> this.disconnect(new TranslatableComponent("disconnect.spam", new Object[0]))); // Paper
return;
}
// CraftBukkit end
@@ -714,12 +714,35 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
stringreader.skip();
}
- ParseResults<CommandSourceStack> parseresults = this.server.getCommands().getDispatcher().parse(stringreader, this.player.createCommandSourceStack());
+ // Paper start - async tab completion
+ com.destroystokyo.paper.event.server.AsyncTabCompleteEvent event;
+ java.util.List<String> completions = new java.util.ArrayList<>();
+ String buffer = packet.getCommand();
+ event = new com.destroystokyo.paper.event.server.AsyncTabCompleteEvent(this.getCraftPlayer(), completions,
+ buffer, true, null);
+ event.callEvent();
+ completions = event.isCancelled() ? com.google.common.collect.ImmutableList.of() : event.getCompletions();
+ // If the event isn't handled, we can assume that we have no completions, and so we'll ask the server
+ if (!event.isHandled()) {
+ if (!event.isCancelled()) {
+
+ this.server.scheduleOnMain(() -> { // Paper - This needs to be on main
+ ParseResults<CommandSourceStack> parseresults = this.server.getCommands().getDispatcher().parse(stringreader, this.player.createCommandSourceStack());
- this.server.getCommands().getDispatcher().getCompletionSuggestions(parseresults).thenAccept((suggestions) -> {
- if (suggestions.isEmpty()) return; // CraftBukkit - don't send through empty suggestions - prevents [<args>] from showing for plugins with nothing more to offer
- this.connection.send(new ClientboundCommandSuggestionsPacket(packet.getId(), suggestions));
- });
+ this.server.getCommands().getDispatcher().getCompletionSuggestions(parseresults).thenAccept((suggestions) -> {
+ if (suggestions.isEmpty()) return; // CraftBukkit - don't send through empty suggestions - prevents [<args>] from showing for plugins with nothing more to offer
+ this.connection.send(new ClientboundCommandSuggestionsPacket(packet.getId(), suggestions));
+ });
+ });
+ }
+ } else if (!completions.isEmpty()) {
+ com.mojang.brigadier.suggestion.SuggestionsBuilder builder = new com.mojang.brigadier.suggestion.SuggestionsBuilder(packet.getCommand(), stringreader.getTotalLength());
+
+ builder = builder.createOffset(builder.getInput().lastIndexOf(' ') + 1);
+ completions.forEach(builder::suggest);
+ player.connection.send(new ClientboundCommandSuggestionsPacket(packet.getId(), builder.buildFuture().join()));
+ }
+ // Paper end - async tab completion
}
@Override
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 0c1378bbee14a9fc3c81288e963e2709238830ae..57feb89a7dffb14f1e006b62e131604bd67797f9 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -2057,7 +2057,7 @@ public final class CraftServer implements Server {
offers = this.tabCompleteChat(player, message);
}
- TabCompleteEvent tabEvent = new TabCompleteEvent(player, message, offers);
+ TabCompleteEvent tabEvent = new TabCompleteEvent(player, message, offers, message.startsWith("/") || forceCommand, pos != null ? net.minecraft.server.MCUtil.toLocation(((CraftWorld) player.getWorld()).getHandle(), new BlockPos(pos)) : null); // Paper
this.getPluginManager().callEvent(tabEvent);
return tabEvent.isCancelled() ? Collections.EMPTY_LIST : tabEvent.getCompletions();
diff --git a/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java b/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
index b996fde481cebbbcce80a6c267591136db7cc0bc..e5af155d75f717d33c23e22ff8b96bb3ff87844d 100644
--- a/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
+++ b/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
@@ -28,6 +28,39 @@ public class ConsoleCommandCompleter implements Completer {
public void complete(LineReader reader, ParsedLine line, List<Candidate> candidates) {
final CraftServer server = this.server.server;
final String buffer = line.line();
+ // Async Tab Complete
+ com.destroystokyo.paper.event.server.AsyncTabCompleteEvent event;
+ java.util.List<String> completions = new java.util.ArrayList<>();
+ event = new com.destroystokyo.paper.event.server.AsyncTabCompleteEvent(server.getConsoleSender(), completions,
+ buffer, true, null);
+ event.callEvent();
+ completions = event.isCancelled() ? com.google.common.collect.ImmutableList.of() : event.getCompletions();
+
+ if (event.isCancelled() || event.isHandled()) {
+ // Still fire sync event with the provided completions, if someone is listening
+ if (!event.isCancelled() && TabCompleteEvent.getHandlerList().getRegisteredListeners().length > 0) {
+ List<String> finalCompletions = completions;
+ Waitable<List<String>> syncCompletions = new Waitable<List<String>>() {
+ @Override
+ protected List<String> evaluate() {
+ org.bukkit.event.server.TabCompleteEvent syncEvent = new org.bukkit.event.server.TabCompleteEvent(server.getConsoleSender(), buffer, finalCompletions);
+ return syncEvent.callEvent() ? syncEvent.getCompletions() : com.google.common.collect.ImmutableList.of();
+ }
+ };
+ server.getServer().processQueue.add(syncCompletions);
+ try {
+ completions = syncCompletions.get();
+ } catch (InterruptedException | ExecutionException e1) {
+ e1.printStackTrace();
+ }
+ }
+
+ if (!completions.isEmpty()) {
+ candidates.addAll(completions.stream().map(Candidate::new).collect(java.util.stream.Collectors.toList()));
+ }
+ return;
+ }
+
// Paper end
Waitable<List<String>> waitable = new Waitable<List<String>>() {
@Override
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