ui.R

library(shiny)
library(leaflet)

# Choices for drop-downs
vars <- c(
  "Is SuperZIP?" = "superzip",
  "Centile score" = "centile",
  "College education" = "college",
  "Median income" = "income",
  "Population" = "adultpop"
)


shinyUI(navbarPage("Superzip", id="nav",

  tabPanel("Interactive map",
    div(class="outer",
      
      tags$head(
        # Include our custom CSS
        includeCSS("styles.css"),
        includeScript("gomap.js")
      ),
      
      leafletMap("map", width="100%", height="100%",
        initialTileLayer = "//{s}.tiles.mapbox.com/v3/jcheng.map-5ebohr46/{z}/{x}/{y}.png",
        initialTileLayerAttribution = HTML('Maps by <a href="http://www.mapbox.com/">Mapbox</a>'),
        options=list(
          center = c(37.45, -93.85),
          zoom = 4,
          maxBounds = list(list(15.961329,-129.92981), list(52.908902,-56.80481)) # Show US only
        )
      ),
      
      absolutePanel(id = "controls", class = "panel panel-default", fixed = TRUE, draggable = TRUE,
        top = 70, left = "auto", right = 20, bottom = "auto",
        width = 330, height = "auto",
        
        h2("ZIP explorer"),
        
        selectInput("color", "Color", vars),
        selectInput("size", "Size", vars, selected = "adultpop"),
        conditionalPanel("input.color == 'superzip' || input.size == 'superzip'",
          # Only prompt for threshold when coloring or sizing by superzip
          numericInput("threshold", "SuperZIP threshold (top n percentile)", 5)
        ),
        
        plotOutput("histCentile", height = 200),
        plotOutput("scatterCollegeIncome", height = 250)
      ),
      
      tags$div(id="cite",
        'Data compiled for ', tags$em('Coming Apart: The State of White America, 1960–2010'), ' by Charles Murray (Crown Forum, 2012).'
      )
    )
  ),

  tabPanel("Data explorer",
    fluidRow(
      column(3,
        selectInput("states", "States", c("All states"="", structure(state.abb, names=state.name), "Washington, DC"="DC"), multiple=TRUE)
      ),
      column(3,
        conditionalPanel("input.states",
          selectInput("cities", "Cities", c("All cities"=""), multiple=TRUE)
        )
      ),
      column(3,
        conditionalPanel("input.states",
          selectInput("zipcodes", "Zipcodes", c("All zipcodes"=""), multiple=TRUE)
        )
      )
    ),
    fluidRow(
      column(1,
        numericInput("minScore", "Min score", min=0, max=100, value=0)
      ),
      column(1,
        numericInput("maxScore", "Max score", min=0, max=100, value=100)
      )
    ),
    hr(),
    dataTableOutput("ziptable")
  ),
  
  conditionalPanel("false", icon("crosshair"))
))