Allow for user defined recipes to be used in SpecApi

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## [Unreleased]
 
+- Allow for user defined recipes to be used in SpecApi [#4655](https://github.com/MakieOrg/Makie.jl/pull/4655).
+
 ## [0.21.17] - 2024-12-05
 
 - Added `backend` and `update` kwargs to `show` [#4558](https://github.com/MakieOrg/Makie.jl/pull/4558)

MakieCore/src/recipes.jl

@@ -21,6 +21,12 @@ function plotfunc(f::Function)
     end
 end
 
+symbol_to_plot(x::Symbol) = symbol_to_plot(Val(x))
+function symbol_to_plot(::Val{Sym}) where {Sym}
+    return nothing
+end
+
+
 function plotfunc!(x)
     F = plotfunc(x)::Function
     name = Symbol(nameof(F), :!)
@@ -188,6 +194,7 @@ macro recipe(theme_func, Tsym::Symbol, args::Symbol...)
         Core.@__doc__ ($funcname)(args...; kw...) = _create_plot($funcname, Dict{Symbol, Any}(kw), args...)
         ($funcname!)(args...; kw...) = _create_plot!($funcname, Dict{Symbol, Any}(kw), args...)
         $(MakieCore).default_theme(scene, ::Type{<:$PlotType}) = $(esc(theme_func))(scene)
+        $(MakieCore).symbol_to_plot(::Val{$(QuoteNode(Tsym))}) = $PlotType
         export $PlotType, $funcname, $funcname!
     end
     if !isempty(args)
@@ -496,6 +503,8 @@ function create_recipe_expr(Tsym, args, attrblock)
         $(MakieCore).documented_attributes(::Type{<:$(PlotType)}) = $attr_placeholder
 
         $(MakieCore).plotsym(::Type{<:$(PlotType)}) = $(QuoteNode(Tsym))
+        $(MakieCore).symbol_to_plot(::Val{$(QuoteNode(Tsym))}) = $PlotType
+
         function ($funcname)(args...; kw...)
             kwdict = Dict{Symbol, Any}(kw)
             _create_plot($funcname, kwdict, args...)

src/makielayout/blocks.jl

@@ -6,6 +6,9 @@ function attribute_default_expressions end
 function _attribute_docs end
 function has_forwarded_layout end
 
+symbol_to_block(symbol::Symbol) = symbol_to_block(Val(symbol))
+symbol_to_block(::Val) = nothing
+
 macro Block(_name::Union{Expr, Symbol}, body::Expr = Expr(:block))
 
     body.head === :block || error("A Block needs to be defined within a `begin end` block")
@@ -78,18 +81,18 @@ macro Block(_name::Union{Expr, Symbol}, body::Expr = Expr(:block))
         $structdef
 
         export $name
-
-        function Makie.is_attribute(::Type{$(name)}, sym::Symbol)
+        $(Makie).symbol_to_block(::Val{$(QuoteNode(name))}) = $name
+        function $(Makie).is_attribute(::Type{$(name)}, sym::Symbol)
             sym in ($((attrs !== nothing ? [QuoteNode(a.symbol) for a in attrs] : [])...),)
         end
 
-        function Makie.default_attribute_values(::Type{$(name)}, scene::Union{Scene, Nothing})
+        function $(Makie).default_attribute_values(::Type{$(name)}, scene::Union{Scene, Nothing})
             sceneattrs = scene === nothing ? Attributes() : theme(scene)
-            curdeftheme = Makie.fast_deepcopy($(Makie).CURRENT_DEFAULT_THEME)
+            curdeftheme = $(Makie).fast_deepcopy($(Makie).CURRENT_DEFAULT_THEME)
             $(make_attr_dict_expr(attrs, :sceneattrs, :curdeftheme))
         end
 
-        function Makie.attribute_default_expressions(::Type{$name})
+        function $(Makie).attribute_default_expressions(::Type{$name})
             $(
                 if attrs === nothing
                     Dict{Symbol, String}()
@@ -99,7 +102,7 @@ macro Block(_name::Union{Expr, Symbol}, body::Expr = Expr(:block))
             )
         end
 
-        function Makie._attribute_docs(::Type{$(name)})
+        function $(Makie)._attribute_docs(::Type{$(name)})
             Dict(
                 $(
                     (attrs !== nothing ?
@@ -109,7 +112,7 @@ macro Block(_name::Union{Expr, Symbol}, body::Expr = Expr(:block))
             )
         end
 
-        Makie.has_forwarded_layout(::Type{$name}) = $has_forwarded_layout
+        $(Makie).has_forwarded_layout(::Type{$name}) = $has_forwarded_layout
 
         docstring_modified = make_block_docstring($name, user_docstring)
         @doc docstring_modified $name

src/specapi.jl

@@ -3,12 +3,10 @@ using GridLayoutBase: GridLayoutBase
 
 import GridLayoutBase: GridPosition, Side, ContentSize, GapSize, AlignMode, Inner, GridLayout, GridSubposition
 
-function get_recipe_function(name::Symbol)
-    if hasproperty(Makie, name)
-        return getfield(Makie, name)
-    else
-        return nothing
-    end
+function symbol_to_specable(sym::Symbol)
+    block = symbol_to_block(sym)
+    isnothing(block) || return block
+    return MakieCore.symbol_to_plot(sym)
 end
 
 """
@@ -27,7 +25,7 @@ struct PlotSpec
             error("PlotSpec objects are supposed to be used without !, unless when using `S.$(type)(axis::P.Axis, args...; kwargs...)`")
         end
         if !isuppercase(type_str[1])
-            func = get_recipe_function(type)
+            func = hasproperty(Makie, type) ? getproperty(Makie, type) : nothing
             func === nothing && error("PlotSpec need to be existing recipes or Makie plot objects. Found: $(type_str)")
             plot_type = Plot{func}
             type = plotsym(plot_type)
@@ -169,7 +167,7 @@ function to_plotspec(::Type{P}, p::PlotSpec; kwargs...) where {P}
     return PlotSpec(plotsym(plottype(P, S)), p.args...; p.kwargs..., kwargs...)
 end
 
-plottype(p::PlotSpec) = getfield(Makie, p.type)
+plottype(p::PlotSpec) = MakieCore.symbol_to_plot(p.type)
 
 function Base.show(io::IO, ::MIME"text/plain", spec::PlotSpec)
     args = join(map(x -> string("::", typeof(x)), spec.args), ", ")
@@ -403,7 +401,7 @@ function Base.getproperty(::_SpecApi, field::Symbol)
     # Since precompilation will cache only MakieCore's state
     # And once everything is compiled, and MakieCore is loaded into a package
     # The names are loaded from cache and dont contain anything after MakieCore.
-    func = get_recipe_function(field)
+    func = symbol_to_specable(field)
     if isnothing(func)
         error("$(field) neither a recipe, Makie plotting object or a Block (like Axis, Legend, etc).")
     elseif func isa Function
@@ -744,7 +742,7 @@ function extract_colorbar_kw(legend::BlockSpec, scene::Scene)
 end
 
 function to_layoutable(parent, position::GridLayoutPosition, spec::BlockSpec)
-    BType = getfield(Makie, spec.type)
+    BType = symbol_to_block(spec.type)
     fig = get_top_parent(parent)
 
     block = if spec.type === :Colorbar

test/specapi.jl

@@ -181,9 +181,18 @@ end
     # This is too internal and fragile, so we won't actually test this
     # @test leg.scene.plots[2].marker[] == :circle
     # @test leg.scene.plots[3].marker[] == :rect
-    
+
     # Test that the legend has the correct labels.
     # Again, I consider this too fragile to work with!
     # @test contents(contents(leg.grid)[1])[2].text[] == "A"
     # @test contents(contents(leg.grid)[2])[4].text[] == "B"
 end
+
+@recipe(TestRecipeForSpecApi) do scene
+    return Attributes()
+end
+
+@testset "External Recipe compatibility (#4295)" begin
+    @test_nowarn S.TestRecipeForSpecApi
+    @test_nowarn S.TestRecipeForSpecApi(1, 2, 3; a = 4, b = 5)
+end