From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Aikar 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/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java index a3710f23d4ef254cda3fae83d8547507aa2a8696..4dc0b3a6054ef82ad675c30d30b6a7ad5acea400 100644 --- a/src/main/java/net/minecraft/server/PlayerConnection.java +++ b/src/main/java/net/minecraft/server/PlayerConnection.java @@ -521,10 +521,10 @@ public class PlayerConnection implements PacketListenerPlayIn { @Override public void a(PacketPlayInTabComplete packetplayintabcomplete) { - PlayerConnectionUtils.ensureMainThread(packetplayintabcomplete, this, this.player.getWorldServer()); + // PlayerConnectionUtils.ensureMainThread(packetplayintabcomplete, this, this.player.getWorldServer()); // Paper - run this async // CraftBukkit start if (chatSpamField.addAndGet(this, 1) > 500 && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) { - this.disconnect(new ChatMessage("disconnect.spam", new Object[0])); + minecraftServer.scheduleOnMain(() -> this.disconnect(new ChatMessage("disconnect.spam", new Object[0]))); // Paper return; } // CraftBukkit end @@ -534,12 +534,35 @@ public class PlayerConnection implements PacketListenerPlayIn { stringreader.skip(); } - ParseResults parseresults = this.minecraftServer.getCommandDispatcher().a().parse(stringreader, this.player.getCommandListener()); + // Paper start - async tab completion + com.destroystokyo.paper.event.server.AsyncTabCompleteEvent event; + java.util.List completions = new java.util.ArrayList<>(); + String buffer = packetplayintabcomplete.c(); + event = new com.destroystokyo.paper.event.server.AsyncTabCompleteEvent(this.getPlayer(), 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.minecraftServer.getCommandDispatcher().a().getCompletionSuggestions(parseresults).thenAccept((suggestions) -> { - if (suggestions.isEmpty()) return; // CraftBukkit - don't send through empty suggestions - prevents [] from showing for plugins with nothing more to offer - this.networkManager.sendPacket(new PacketPlayOutTabComplete(packetplayintabcomplete.b(), suggestions)); - }); + this.minecraftServer.scheduleOnMain(() -> { // Paper - This needs to be on main + ParseResults parseresults = this.minecraftServer.getCommandDispatcher().a().parse(stringreader, this.player.getCommandListener()); + + this.minecraftServer.getCommandDispatcher().a().getCompletionSuggestions(parseresults).thenAccept((suggestions) -> { + if (suggestions.isEmpty()) return; // CraftBukkit - don't send through empty suggestions - prevents [] from showing for plugins with nothing more to offer + this.networkManager.sendPacket(new PacketPlayOutTabComplete(packetplayintabcomplete.b(), suggestions)); + }); + }); + } + } else if (!completions.isEmpty()) { + com.mojang.brigadier.suggestion.SuggestionsBuilder builder = new com.mojang.brigadier.suggestion.SuggestionsBuilder(packetplayintabcomplete.c(), stringreader.getTotalLength()); + + builder = builder.createOffset(builder.getInput().lastIndexOf(' ') + 1); + completions.forEach(builder::suggest); + player.playerConnection.sendPacket(new PacketPlayOutTabComplete(packetplayintabcomplete.b(), 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 6f9efe4e5d286fc73a1ecf82e39865715ff03a33..2cc7c1038dae2c521fee5cf471c22221db0a22fc 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java @@ -1790,7 +1790,7 @@ public final class CraftServer implements Server { offers = 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 BlockPosition(pos)) : null); // Paper 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 5510266fb114954322823b72e3199f33c4d7a9a7..a51202ed53d8ba99b364e8797fe32fa8aeb4fc87 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 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 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 finalCompletions = completions; + Waitable> syncCompletions = new Waitable>() { + @Override + protected List 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> waitable = new Waitable>() { @Override