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rework debouncing and lodash in Visualize.js

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This commit is contained in:
Devin Howard 2016-12-18 16:55:41 -05:00
parent e30d05f71d
commit d219bde48d
1 changed files with 16 additions and 16 deletions
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32
frontend/src/Metamaps/Visualize.js
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@ -1,6 +1,6 @@
/* global $ */ /* global $ */
import _ from 'lodash' import { find as _find, indexOf as _indexOf, uniq as _uniq, debounce } from 'lodash'
import $jit from '../patched/JIT' import $jit from '../patched/JIT'
@ -151,25 +151,25 @@ const Visualize = {
// monkey patch scale function // monkey patch scale function
const oldScale = self.mGraph.canvas.scale const oldScale = self.mGraph.canvas.scale
const updateScaleInUrl = debounce(() => {
Util.updateQueryParams({ scale: self.mGraph.canvas.scaleOffsetX.toFixed(2) })
}, 200)
self.mGraph.canvas.scale = function(x, y, disablePlot) { self.mGraph.canvas.scale = function(x, y, disablePlot) {
const returnValue = oldScale.apply(self.mGraph.canvas, arguments) const returnValue = oldScale.apply(self.mGraph.canvas, arguments)
Util.updateQueryParams({ scale: self.mGraph.canvas.scaleOffsetX.toFixed(2) }) updateScaleInUrl()
return returnValue return returnValue
} }
// monkey patch translate function // monkey patch translate function
const oldTranslate = self.mGraph.canvas.translate const oldTranslate = self.mGraph.canvas.translate
let translateTimeout = null const updateTranslateInUrl = debounce(() => {
const newX = self.mGraph.canvas.translateOffsetX.toFixed(2)
const newY = self.mGraph.canvas.translateOffsetY.toFixed(2)
Util.updateQueryParams({ translate: `${newX},${newY}` })
}, 200)
self.mGraph.canvas.translate = function(x, y, disablePlot) { self.mGraph.canvas.translate = function(x, y, disablePlot) {
const returnValue = oldTranslate.apply(self.mGraph.canvas, arguments) const returnValue = oldTranslate.apply(self.mGraph.canvas, arguments)
window.clearTimeout(translateTimeout) updateTranslateInUrl()
translateTimeout = window.setTimeout(() => {
const newX = self.mGraph.canvas.translateOffsetX.toFixed(2)
const newY = self.mGraph.canvas.translateOffsetY.toFixed(2)
Util.updateQueryParams({ translate: `${newX},${newY}` })
translateTimeout = null
return returnValue
}, 50)
} }
const queryParams = Util.queryParams() const queryParams = Util.queryParams()
@ -189,10 +189,10 @@ const Visualize = {
// load JSON data. // load JSON data.
var rootIndex = 0 var rootIndex = 0
if (Active.Topic) { if (Active.Topic) {
var node = _.find(JIT.vizData, function(node) { var node = _find(JIT.vizData, function(node) {
return node.id === Active.Topic.id return node.id === Active.Topic.id
}) })
rootIndex = _.indexOf(JIT.vizData, node) rootIndex = _indexOf(JIT.vizData, node)
} }
self.mGraph.loadJSON(JIT.vizData, rootIndex) self.mGraph.loadJSON(JIT.vizData, rootIndex)
// compute positions and plot. // compute positions and plot.
@ -211,11 +211,11 @@ const Visualize = {
// hold for a maximum of 80 passes, or 4 seconds of waiting time // hold for a maximum of 80 passes, or 4 seconds of waiting time
var tries = 0 var tries = 0
function hold() { function hold() {
const unique = _.uniq(DataModel.Topics.models, function(metacode) { return metacode.get('metacode_id') }) const unique = _uniq(DataModel.Topics.models, function(metacode) { return metacode.get('metacode_id') })
const requiredMetacodes = _.map(unique, function(metacode) { return metacode.get('metacode_id') }) const requiredMetacodes = unique.map(metacode => metacode.get('metacode_id'))
let loadedCount = 0 let loadedCount = 0
_.each(requiredMetacodes, function(metacodeId) { requiredMetacodes.forEach(metacodeId => {
const metacode = DataModel.Metacodes.get(metacodeId) const metacode = DataModel.Metacodes.get(metacodeId)
const img = metacode ? metacode.get('image') : false const img = metacode ? metacode.get('image') : false