update README

Author: hhaensel

README.md

@@ -2,48 +2,74 @@
 
 Embedding Plotly Charts in Stipple.
 
-Both a StipplePlotly-API and the PlotlyBase API are supported.
+### News: Syntax for event forwarding has changed!
+The standard API is now PlotlyBase, the StipplePlotly API is considered legacy.
 
-#### Latest example with forwarding of plotly events
-##### Note: Syntax for event forwarding has changed!
+### Example with forwarding of plotly events
 See the docstrings of `watchplots()` and `watchplot()` for more details!
 
 ```julia
-@reactive! mutable struct Example <: ReactiveModel
+using Stipple, Stipple.ReactiveTools
+using StipplePlotly
+using PlotlyBase
+
+@app Example begin
     @mixin plot::PBPlotWithEvents
+    @in plot_cursor = Dict{String, Any}()
+
+    @onchange isready begin
+        isready || return
+        p = Plot(scatter(y=1:10))
+        plot.layout = p.layout
+        plot.data = p.data
+    end
+
+    @onchange plot_selected begin
+        haskey(plot_selected, "points") && @info "Selection: $(getindex.(plot_selected["points"], "pointIndex"))"
+    end
+
+    @onchange plot_click begin
+        @info "$plot_click"
+    end
+
+    @onchange plot_hover begin
+        @info "hovered over $(plot_hover["points"][1]["x"]):$(plot_hover["points"][1]["y"])"
+        # @info "$plot_hover"
+    end
+
+    @onchange plot_cursor begin
+        @info "cursor moved to $(plot_cursor["cursor"]["x"]):$(plot_cursor["cursor"]["y"])"
+        # @info "$plot_cursor"
+    end
 end
 
 # commented lines below: manual definition of plot_events
-# @reactive! mutable struct Example <: ReactiveModel
-#     plot::R{Plot} = Plot()
-#     plot_selected::R{Dict{String, Any}} = Dict{String, Any}()
-#     plot_hover::R{Dict{String, Any}} = Dict{String, Any}()
+# @app Example begin
+#     @in plot = Plot()
+#     @in plot_selected = Dict{String, Any}()
+#     @in plot_click = Dict{String, Any}()
+#     @in plot_hover = Dict{String, Any}()
+#     @in plot_cursor = Dict{String, Any}()
 # end
 
-function ui(model::Example)
-    page(model, class = "container", 
+Stipple.js_mounted(::Example) = watchplots()
+
+# the keyword argument 'keepselection' (default = false) controls whether the selection outline shall be removed after selection
+function ui()
     row(class = "st-module", [
-        plotly(:plot, syncevents = true),
-    ]))
+        plotly(:plot, syncevents = true, keepselection = false),
+    ])
 end
 
-# The following line will watch all plots that have `syncevents` enabled
-# or that have set `syncprefix` explicitly.
-Stipple.js_mounted(::Example) = watchplots(:Example)
-
-function handlers(model)
-  on(model.isready) do isready
-      isready || return
-      push!(model)
-  end
-
-  on(model.plot_selected) do data
-      haskey(data, "points") && @info "Selection: $(getindex.(data["points"], "pointIndex"))"
-  end
-
-  return model
-end
+@page("/", ui, model = Example)
 ```
+Possible forwarded events are
+- '_selected' (Selection changed)
+- '_hover' (hovered over data point)
+- '_click' (click event on plot area)
+- '_relayout' (plot layout changed)
+- '_cursor' (current mouse position, not covered in PBPlotWithEvents in order to reduce data traffic)
+
 For more Stipple Plotly Demos please check: [Stipple Demos Repo](https://github.com/GenieFramework/StippleDemos)
 
 ## Acknowledgement