feat: add linkshell shortcuts

ChatTwo/Code/InputChannelExt.cs

@@ -126,4 +126,28 @@ internal static class InputChannelExt {
             .Where(id => id != null)
             .Cast<TextCommand>();
     }
+
+    internal static bool IsLinkshell(this InputChannel channel) => channel switch {
+        InputChannel.Linkshell1 => true,
+        InputChannel.Linkshell2 => true,
+        InputChannel.Linkshell3 => true,
+        InputChannel.Linkshell4 => true,
+        InputChannel.Linkshell5 => true,
+        InputChannel.Linkshell6 => true,
+        InputChannel.Linkshell7 => true,
+        InputChannel.Linkshell8 => true,
+        _ => false,
+    };
+
+    internal static bool IsCrossLinkshell(this InputChannel channel) => channel switch {
+        InputChannel.CrossLinkshell1 => true,
+        InputChannel.CrossLinkshell2 => true,
+        InputChannel.CrossLinkshell3 => true,
+        InputChannel.CrossLinkshell4 => true,
+        InputChannel.CrossLinkshell5 => true,
+        InputChannel.CrossLinkshell6 => true,
+        InputChannel.CrossLinkshell7 => true,
+        InputChannel.CrossLinkshell8 => true,
+        _ => false,
+    };
 }

ChatTwo/GameFunctions/Chat.cs

@@ -9,6 +9,7 @@ using Dalamud.Logging;
 using Dalamud.Memory;
 using FFXIVClientStructs.FFXIV.Client.System.Framework;
 using FFXIVClientStructs.FFXIV.Client.System.String;
+using FFXIVClientStructs.FFXIV.Client.UI;
 using FFXIVClientStructs.FFXIV.Client.UI.Agent;
 using FFXIVClientStructs.FFXIV.Client.UI.Misc;
 using FFXIVClientStructs.FFXIV.Client.UI.Shell;
@@ -46,7 +47,13 @@ internal sealed unsafe class Chat : IDisposable {
     private readonly delegate* unmanaged<Framework*, IntPtr> _getNetworkModule = null!;
 
     [Signature("E8 ?? ?? ?? ?? 48 8B C8 E8 ?? ?? ?? ?? 45 8D 46 FB")]
-    private readonly delegate* unmanaged<IntPtr, uint, Utf8String*> _getLinkshellName = null!;
+    private readonly delegate* unmanaged<IntPtr, uint, Utf8String*> _getCrossLinkshellName = null!;
+
+    [Signature("3B 51 10 73 0F 8B C2 48 83 C0 0B")]
+    private readonly delegate* unmanaged<IntPtr, uint, ulong*> _getLinkshellInfo = null!;
+
+    [Signature("E8 ?? ?? ?? ?? 4C 8B C0 FF C3")]
+    private readonly delegate* unmanaged<IntPtr, ulong, byte*> _getLinkshellName = null!;
 
     // Hooks
 
@@ -92,6 +99,9 @@ internal sealed unsafe class Chat : IDisposable {
     [Signature("89 83 ?? ?? ?? ?? 48 8B 01 83 FE 13 7C 05 41 8B D4 EB 03 83 CA FF FF 90", Offset = 2)]
     private readonly int? _shellChannelOffset;
 
+    [Signature("4C 8D B6 ?? ?? ?? ?? 41 8B 1E 45 85 E4 74 7A 33 FF 8B EF 66 0F 1F 44 00", Offset = 3)]
+    private readonly int? _linkshellCycleOffset;
+
     #pragma warning restore 0649
 
     // Events
@@ -130,15 +140,54 @@ internal sealed unsafe class Chat : IDisposable {
     }
 
     internal string? GetLinkshellName(uint idx) {
+        var infoProxy = this.Plugin.Functions.GetInfoProxyByIndex(2);
+        if (infoProxy == IntPtr.Zero) {
+            return null;
+        }
+
+        var lsInfo = this._getLinkshellInfo(infoProxy, idx);
+        if (lsInfo == null) {
+            return null;
+        }
+
+        var utf = this._getLinkshellName(infoProxy, *lsInfo);
+        return utf == null ? null : MemoryHelper.ReadStringNullTerminated((IntPtr) utf);
+    }
+
+    internal string? GetCrossLinkshellName(uint idx) {
         var infoProxy = this.Plugin.Functions.GetInfoProxyByIndex(26);
         if (infoProxy == IntPtr.Zero) {
             return null;
         }
 
-        var utf = this._getLinkshellName(infoProxy, idx);
+        var utf = this._getCrossLinkshellName(infoProxy, idx);
         return utf == null ? null : utf->ToString();
     }
 
+    internal ulong RotateLinkshellHistory(RotateMode mode) {
+        if (mode == RotateMode.None && this._linkshellCycleOffset != null) {
+            // for the branch at 6.08: 5E1680
+            var uiModule = (IntPtr) Framework.Instance()->GetUiModule();
+            *(int*) (uiModule + this._linkshellCycleOffset.Value) = -1;
+        }
+
+        return RotateLinkshellHistoryInternal(189, mode);
+    }
+
+    internal ulong RotateCrossLinkshellHistory(RotateMode mode) => RotateLinkshellHistoryInternal(191, mode);
+
+    private static ulong RotateLinkshellHistoryInternal(int vfunc, RotateMode mode) {
+        var idx = mode switch {
+            RotateMode.Forward => 1,
+            RotateMode.Reverse => -1,
+            _ => 0,
+        };
+
+        var uiModule = Framework.Instance()->GetUiModule();
+        var cycleFunc = (delegate* unmanaged<UIModule*, int, ulong>) uiModule->vfunc[vfunc];
+        return cycleFunc(uiModule, idx);
+    }
+
     private readonly Dictionary<string, Keybind> _keybinds = new();
     internal IReadOnlyDictionary<string, Keybind> Keybinds => this._keybinds;
 

ChatTwo/Ui/ChatLog.cs

@@ -27,7 +27,6 @@ internal sealed class ChatLog : IUiComponent {
     private int _lastTab;
     private InputChannel? _tempChannel;
     private TellTarget? _tellTarget;
-    private int _tellIdx;
 
     private PayloadHandler PayloadHandler { get; }
     private Dictionary<string, ChatType> TextCommandChannels { get; } = new();
@@ -70,18 +69,17 @@ internal sealed class ChatLog : IUiComponent {
 
             if (info.Channel is InputChannel.Tell) {
                 if (info.Rotate != RotateMode.None) {
-                    this._tellIdx = prevTemp != InputChannel.Tell
+                    var idx = prevTemp != InputChannel.Tell
                         ? 0
                         : info.Rotate == RotateMode.Reverse
                             ? -1
                             : 1;
 
-                    var tellInfo = this.Ui.Plugin.Functions.Chat.GetTellHistoryInfo(this._tellIdx);
+                    var tellInfo = this.Ui.Plugin.Functions.Chat.GetTellHistoryInfo(idx);
                     if (tellInfo != null && reason != null) {
                         this._tellTarget = new TellTarget(tellInfo.Name, (ushort) tellInfo.World, tellInfo.ContentId, reason.Value);
                     }
                 } else {
-                    this._tellIdx = 0;
                     this._tellTarget = null;
 
                     if (target != null) {
@@ -89,9 +87,20 @@ internal sealed class ChatLog : IUiComponent {
                     }
                 }
             } else {
-                this._tellIdx = 0;
                 this._tellTarget = null;
             }
+
+            var mode = prevTemp == null
+                ? RotateMode.None
+                : info.Rotate;
+
+            if (info.Channel is InputChannel.Linkshell1 && info.Rotate != RotateMode.None) {
+                var idx = this.Ui.Plugin.Functions.Chat.RotateLinkshellHistory(mode);
+                this._tempChannel = info.Channel.Value + (uint) idx;
+            } else if (info.Channel is InputChannel.CrossLinkshell1 && info.Rotate != RotateMode.None) {
+                var idx = this.Ui.Plugin.Functions.Chat.RotateCrossLinkshellHistory(mode);
+                this._tempChannel = info.Channel.Value + (uint) idx;
+            }
         }
 
         if (info.Text != null && this.Chat.Length == 0) {
@@ -266,19 +275,27 @@ internal sealed class ChatLog : IUiComponent {
 
         ImGui.PushStyleVar(ImGuiStyleVar.ItemSpacing, Vector2.Zero);
         try {
-            if (this._tempChannel != null) {
             if (this._tellTarget != null) {
                 var world = this.Ui.Plugin.DataManager.GetExcelSheet<World>()
                     ?.GetRow(this._tellTarget.World)
                     ?.Name
                     ?.RawString ?? "???";
 
-                    this.DrawChunks(new List<Chunk> {
+                this.DrawChunks(new Chunk[] {
                     new TextChunk(null, null, "Tell "),
                     new TextChunk(null, null, this._tellTarget.Name),
                     new IconChunk(null, null, BitmapFontIcon.CrossWorld),
                     new TextChunk(null, null, world),
                 });
+            } else if (this._tempChannel != null) {
+                if (this._tempChannel.Value.IsLinkshell()) {
+                    var idx = (uint) this._tempChannel.Value - (uint) InputChannel.Linkshell1;
+                    var lsName = this.Ui.Plugin.Functions.Chat.GetLinkshellName(idx);
+                    ImGui.TextUnformatted($"LS #{idx + 1}: {lsName}");
+                } else if (this._tempChannel.Value.IsCrossLinkshell()) {
+                    var idx = (uint) this._tempChannel.Value - (uint) InputChannel.CrossLinkshell1;
+                    var cwlsName = this.Ui.Plugin.Functions.Chat.GetCrossLinkshellName(idx);
+                    ImGui.TextUnformatted($"CWLS [{idx + 1}]: {cwlsName}");
                 } else {
                     ImGui.TextUnformatted(this._tempChannel.Value.ToChatType().Name());
                 }
@@ -312,7 +329,6 @@ internal sealed class ChatLog : IUiComponent {
 
                 if (ImGui.Selectable(name)) {
                     this.Ui.Plugin.Functions.Chat.SetChannel(channel);
-                    this._tellIdx = 0;
                     this._tellTarget = null;
                 }
             }
@@ -394,7 +410,6 @@ internal sealed class ChatLog : IUiComponent {
             }
 
             this._tempChannel = null;
-            this._tellIdx = 0;
         }
 
         if (inputColour != null) {