Source: view/vizCandidateDns/CandidateDnViewList.js

  1. /** @module */
  3. import CandidateDnView from './CandidateDnView.js'
  5. /**
  6.  * A simple list of candidateDnView instances.
  7.  * It really just passes along function calls to each member of the list.
  8.  * It also checks if that member exists. Alternatively, it was deleted.
  9.  * @constructor
  10.  */
  11. export default function CandidateDnViewList(viewSettings, candidateDnList, screen, simOptions, electionOptionsMan) {
  12.     const self = this
  14.     const canDnViews = []
  15.     self.rendererMaker = () => ({ render: () => {} })
  17.     // Publish to DraggableManager //
  18.     const observers = []
  19.     self.attachNewG = (o) => { observers.push(o) }
  20.     const updateObservers = (g) => { observers.forEach((o) => o.updateNewG(g)) }
  22.     // Subscribe to Sim //
  23.     candidateDnList.attachNewE(self)
  24.     self.updateNewE = (candidateDn) => {
  25.         self.newCandidateDn(candidateDn)
  26.     }
  28.     // Data Setters and Getters //
  30.     self.newCandidateDn = function (candidateDn) {
  31.         const canDnView = new CandidateDnView(candidateDn, screen, 21, 21, viewSettings, simOptions, electionOptionsMan)
  32.         canDnViews.push(canDnView)
  33.         canDnView.graphic.setRenderer(self.rendererMaker)
  34.         updateObservers(canDnView)
  35.     }
  37.     // get sim entities that exist
  38.     self.getCanDnViews = () => {
  39.         const a = canDnViews.filter((canDnView) => canDnView.canDn.exists)
  40.         return a
  41.     }
  43.     // get the underlying entities of the above
  44.     self.getCandidateDistributions = () => {
  45.         const canDnViewsEx = self.getCanDnViews()
  46.         return canDnViewsEx.map((canDnView) => canDnView.canDn)
  47.     }
  48.     self.getCandidateDistributionsAll = () => canDnViews.map((canDnView) => canDnView.canDn)
  50.     // Update //
  52.     self.setCandidateDnWins = (partyWinFraction) => {
  53.         const canDnViewsExisting = self.getCanDnViews()
  54.         if (canDnViewsExisting.length > 1) {
  55.             canDnViewsExisting.forEach((canDnView) => {
  56.                 const party0 = canDnView.canDn.party[0]
  57.                 const winFraction = partyWinFraction[party0]
  58.                 canDnView.graphic.setWinFraction(winFraction)
  59.             })
  60.         }
  61.     }
  62.     self.updateViewXY = () => {
  63.         canDnViews.forEach((canDnView) => canDnView.graphic.updateViewXY())
  64.     }
  66.     // Render //
  68.     self.render = () => {
  69.         canDnViews.forEach((canDnView) => {
  70.             if (canDnView.canDn.exists) canDnView.graphic.renderer.render()
  71.         })
  72.     }
  74.     self.setRenderer = (rendererMaker) => {
  75.         self.rendererMaker = rendererMaker
  76.         canDnViews.forEach((canDnView) => canDnView.graphic.setRenderer(rendererMaker))
  77.     }
  78.     self.renderForeground = () => {
  79.         if (viewSettings.showGhosts) {
  80.             self.renderForegroundAll()
  81.         } else {
  82.             self.renderForegroundExisting()
  83.         }
  84.     }
  85.     self.renderForegroundExisting = () => {
  86.         canDnViews.forEach((canDnView) => {
  87.             if (canDnView.canDn.exists) canDnView.graphic.renderForeground()
  88.         })
  89.     }
  90.     self.renderForegroundAll = () => {
  91.         canDnViews.forEach((canDnView) => canDnView.graphic.renderForeground())
  92.     }
  93. }