René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"as.widget distorts htmlwidget behavior","articleBody":"The `as.widget` function seems to be distorting widget behavior for more recently introduced functionality like `onRender`. If I remember correctly, the `as.widget` mechanism was introduced so that piping with `dplyr` verbs works. While this is convenient, it breaks widget behavior.\n\nFor example, if I want to subscribe to the `plotly_hover` data, I would need to call `as.widget` first before calling `onRender`. Simply writing `p %\u003e% onRender(...)` will not work.\n\n``` r\nlibrary(plotly)\nset.seed(100)\nd \u003c- diamonds[sample(nrow(diamonds), 1000), ]\np \u003c- plot_ly(d, x = carat, y = price, text = paste(\"Clarity: \", clarity),\n  mode = \"markers\", color = carat, size = carat\n) \nas.widget(p) %\u003e% \n  onRender(\"function(el, x){\n    el.on('plotly_hover', function(data){\n     console.log(data)\n    })\n  }\")\n```\n\nThis is a minor inconvenience. The bigger problem comes with `renderPlotly` on the shiny side. If I want to trigger a shiny input change on hover, I won't be able to do it with `renderPlotly`, since it applies the `as.widget` function explicitly to `expr`. So I cannot pass a widget object to `renderPlotly`.\n\nMy solution to this problem as to write a `renderPlotly2` function that removes the `as.widget` call. I believe this behavior can be incorporated in `renderPlotly` directly by doing two things:\n1. Make `as.widget` an S3 method.\n2. `as.widget.data.frame` is the current `as.widget` function\n3. `as.widget.htmlwidget` would be the identity function.\n\n@cpsievert let me know what you think about this. In general, it would be good if the `plotly` widget is able to expose all the functionality that the base htmlwidgets package provides.\n","author":{"url":"https://github.com/ramnathv","@type":"Person","name":"ramnathv"},"datePublished":"2016-02-02T21:19:55.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/449/plotly.R/issues/449"}