feat(settings): add ColorPicker skeleton with lifecycle

2026-05-26 17:05:40 +02:00
parent c6f7266194
commit 21689655da
1 changed files with 128 additions and 0 deletions
@@ -0,0 +1,128 @@
+using System.Numerics;
+using Dalamud.Bindings.ImGui;
+using Dalamud.Interface.Utility.Raii;
+using HellionChat.Themes;
+using HellionChat.Util;
+
+namespace HellionChat.Ui.Components.Settings;
+
+internal sealed class ColorPicker
+{
+    private readonly ThemeRegistry _themes;
+
+    public ColorPicker(ThemeRegistry themes)
+    {
+        _themes = themes;
+    }
+
+    public void Draw()
+    {
+        if (_themes.EditingThemeBuffer is null)
+        {
+            DrawIdleState();
+            return;
+        }
+
+        DrawEditState(_themes.EditingThemeBuffer);
+    }
+
+    private void DrawIdleState()
+    {
+        var active = _themes.Active;
+        ImGui.TextDisabled($"Active theme: {active.Name}");
+
+        // Fork built-ins before editing: Switch() prefers built-in slugs over custom
+        // files with the same slug, so an in-place edit would silently no-op.
+        if (active.IsBuiltIn)
+        {
+            if (ImGui.Button("Fork & Edit"))
+            {
+                ForkAndBeginEditing(active);
+            }
+            if (ImGui.IsItemHovered())
+            {
+                ImGui.SetTooltip(
+                    "Built-in themes cannot be edited in place. Fork creates a custom copy you can edit and save."
+                );
+            }
+        }
+        else
+        {
+            if (ImGui.Button("Edit theme"))
+            {
+                _themes.BeginEditing(active);
+            }
+        }
+    }
+
+    private void ForkAndBeginEditing(Theme source)
+    {
+        // 100 attempts is already absurd for one base slug; past that means the
+        // themes folder is broken, not a real user collision.
+        var newSlug = $"{source.Slug}_fork";
+        var attempt = 2;
+        const int MaxAttempts = 100;
+        while (_themes.TryGet(newSlug, out _))
+        {
+            if (attempt > MaxAttempts)
+            {
+                return;
+            }
+            newSlug = $"{source.Slug}_fork_{attempt++}";
+        }
+
+        var forked = source with
+        {
+            Slug = newSlug,
+            Name = $"{source.Name} (fork)",
+            IsBuiltIn = false,
+        };
+        // The `with`-clone leaves AbgrCache empty (private setter outside primary ctor).
+        // OK here because EditingBuffer render path goes through TokenResolver.Resolve(token, buffer.Colors),
+        // not AbgrCache. Save triggers Switch() which recomputes for the active theme.
+        _themes.BeginEditing(forked);
+    }
+
+    private void DrawEditState(Theme buffer)
+    {
+        ImGui.TextUnformatted($"Editing: {buffer.Name}");
+        ImGui.Separator();
+
+        // Sections land in Step 2; placeholder keeps the skeleton compiling.
+        ImGui.TextDisabled("(sections land in next sub-step)");
+
+        ImGui.Separator();
+        DrawActionButtons(buffer);
+    }
+
+    private void DrawActionButtons(Theme buffer)
+    {
+        if (ImGui.Button("Save"))
+        {
+            _themes.SaveEditingBuffer(out _);
+        }
+        ImGui.SameLine();
+        if (ImGui.Button("Cancel"))
+        {
+            _themes.DiscardEditingBuffer();
+        }
+        ImGui.SameLine();
+
+        // Reset is disabled during a fork edit: the active theme is still the built-in
+        // source until Save, so BeginEditing(Active) would throw away the fork's slug/name
+        // framing and effectively cancel the fork. Proper Reset-during-fork needs a tracked
+        // _editingSource field in ThemeRegistry (out of v1.7.0 scope).
+        var isForkBuffer = !buffer.IsBuiltIn && _themes.Active.Slug != buffer.Slug;
+        using (ImRaii.Disabled(isForkBuffer))
+        {
+            if (ImGui.Button("Reset to source"))
+            {
+                _themes.BeginEditing(_themes.Active);
+            }
+        }
+        if (isForkBuffer && ImGui.IsItemHovered(ImGuiHoveredFlags.AllowWhenDisabled))
+        {
+            ImGui.SetTooltip("Reset is unavailable while editing a fork. Save or Cancel first.");
+        }
+    }
+}