ui: ChatInputBar compact channel-selector with ChatColours background

ChatTwo/Ui/ChatInputBar.cs

@@ -1,6 +1,9 @@
 using System;
+using System.Numerics;
 using ChatTwo.Code;
+using ChatTwo.Util;
 using Dalamud.Bindings.ImGui;
+using Dalamud.Interface.Utility.Raii;
 
 namespace ChatTwo.Ui;
 
@@ -36,12 +39,107 @@ public sealed class ChatInputBar
     {
     }
 
-    // Compact rendering for pop-out windows — implemented in Task 21–23.
+    // Compact rendering for pop-out windows.
+    //
+    // Layout A (klassisch): Channel-Icon-Button links (Background-Farbe
+    // aus ChatColours), Text-Input mittig, Auto-Translate-Icon-Button
+    // rechts. Channel-Switch wirkt via Plugin.Functions.Chat global (das
+    // ist eine FFXIV-API-Eigenschaft, kein Bug). Pro Pop-Out unabhängig
+    // bleibt aber der Text-Buffer und der History-Cursor.
     public void RenderCompact()
     {
-        ImGui.TextDisabled("[ChatInputBar Compact — Stub]");
+        var tab = _activeTabAccessor();
+        if (tab == null)
+            return;
+
+        DrawChannelIconButton(tab);
+
+        // Task 22 / 23 fügen Text-Input und Auto-Translate-Icon hier an.
+        ImGui.SameLine();
+        ImGui.TextDisabled("[input + auto-translate stubs]");
     }
 
+    private void DrawChannelIconButton(Tab tab)
+    {
+        var inputType = tab.CurrentChannel.UseTempChannel
+            ? tab.CurrentChannel.TempChannel.ToChatType()
+            : tab.CurrentChannel.Channel.ToChatType();
+
+        var rgba = Plugin.Config.ChatColours.TryGetValue(inputType, out var c)
+            ? c
+            : (inputType.DefaultColor() ?? 0xFFFFFFFFu);
+        var v3 = ColourUtil.RgbaToVector3(rgba);
+        var bg = new Vector4(v3.X, v3.Y, v3.Z, 1f);
+
+        // Compute readable foreground — black on bright, white on dark
+        var luminance = 0.2126f * v3.X + 0.7152f * v3.Y + 0.0722f * v3.Z;
+        var fg = luminance > 0.55f ? new Vector4(0f, 0f, 0f, 1f) : new Vector4(1f, 1f, 1f, 1f);
+
+        const string popupId = "chat-channel-picker-compact";
+        const float buttonSize = 22f;
+
+        using (ImRaii.PushColor(ImGuiCol.Button, bg))
+        using (ImRaii.PushColor(ImGuiCol.ButtonHovered, bg))
+        using (ImRaii.PushColor(ImGuiCol.ButtonActive, bg))
+        using (ImRaii.PushColor(ImGuiCol.Text, fg))
+        {
+            // Single-letter glyph derived from the channel — quick visual cue
+            // until we have a proper icon font available in the compact bar.
+            var label = ChannelGlyph(inputType);
+            if (ImGui.Button($"{label}##chan-compact", new Vector2(buttonSize, buttonSize)) && tab.Channel is null)
+                ImGui.OpenPopup(popupId);
+        }
+
+        if (tab.Channel is not null && ImGui.IsItemHovered())
+        {
+            ImGui.SetTooltip(Resources.Language.ChatLog_SwitcherDisabled);
+        }
+        else if (ImGui.IsItemHovered())
+        {
+            ImGui.SetTooltip(inputType.Name());
+        }
+
+        using (var popup = ImRaii.Popup(popupId))
+        {
+            if (popup)
+            {
+                var channels = _host.GetValidChannels();
+                foreach (var (name, channel) in channels)
+                    if (ImGui.Selectable(name))
+                        _host.SetChannel(channel);
+            }
+        }
+    }
+
+    private static string ChannelGlyph(ChatType type) => type switch
+    {
+        ChatType.Say => "S",
+        ChatType.Yell => "Y",
+        ChatType.Shout => "!",
+        ChatType.TellIncoming or ChatType.TellOutgoing => "T",
+        ChatType.Party or ChatType.CrossParty => "P",
+        ChatType.Alliance => "A",
+        ChatType.FreeCompany => "F",
+        ChatType.NoviceNetwork => "N",
+        ChatType.Linkshell1 => "1",
+        ChatType.Linkshell2 => "2",
+        ChatType.Linkshell3 => "3",
+        ChatType.Linkshell4 => "4",
+        ChatType.Linkshell5 => "5",
+        ChatType.Linkshell6 => "6",
+        ChatType.Linkshell7 => "7",
+        ChatType.Linkshell8 => "8",
+        ChatType.CrossLinkshell1 => "①",
+        ChatType.CrossLinkshell2 => "②",
+        ChatType.CrossLinkshell3 => "③",
+        ChatType.CrossLinkshell4 => "④",
+        ChatType.CrossLinkshell5 => "⑤",
+        ChatType.CrossLinkshell6 => "⑥",
+        ChatType.CrossLinkshell7 => "⑦",
+        ChatType.CrossLinkshell8 => "⑧",
+        _ => "?",
+    };
+
     // Forwards a tab-cycle keybind delta to the host so all windows
     // navigate the same active-tab pointer (single source of truth).
     public void HandleKeybindForward(int delta)