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Merge pull request #53 from ShorensteinCenter/devel
[Feature, N/A] Add front end visualizations
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,197 @@ | ||
| const indexBubbleChart = document.getElementById('index-bubble-chart'); | ||
|
|
||
| /* Calculates the difference, in months, between two Date objects */ | ||
| const dateDiff = pastDate => Math.floor((new Date() - pastDate) / 2592000000); | ||
|
|
||
| /* Updates the index page bubble chart with the current values of the list size, | ||
| open rate, and date created field */ | ||
| const updateChart = speed => { | ||
| const | ||
| userSubscribers = parseInt(document.getElementById('enter-list-size') | ||
| .value.replace(/,/g, '')), | ||
| userOpenRate = +(document.getElementById('enter-open-rate') | ||
| .value.replace('%', '')), | ||
| userListCreated = document.getElementById('enter-list-age').value; | ||
| if (isNaN(userSubscribers) || userSubscribers < 0 || | ||
| isNaN(userOpenRate) || userOpenRate < 0 || userOpenRate > 100) | ||
| return; | ||
| const | ||
| userListAge = dateDiff( | ||
| new Date(new Date(userListCreated).toUTCString())), | ||
| openRateFormatted = userOpenRate.toFixed(1), | ||
| animation = Plotly.animate(indexBubbleChart, { | ||
| data: [ | ||
| {x: [userListAge], | ||
| y: [openRateFormatted], | ||
| text: ['Age: ' + userListAge + ' months<br>' + | ||
| 'Open Rate: ' + openRateFormatted + '%<br>' + | ||
| 'Subscribers: ' + userSubscribers.toLocaleString()], | ||
| marker: { | ||
| size: [userSubscribers], | ||
| } | ||
| } | ||
| ], | ||
| traces: [1] | ||
| }, { | ||
| transition: { | ||
| duration: speed, | ||
| easing: 'ease', | ||
| }, | ||
| frame: { | ||
| duration: speed | ||
| } | ||
| }); | ||
| return animation; | ||
| } | ||
|
|
||
| if (indexBubbleChart) { | ||
| const | ||
| subscribers = JSON.parse(indexBubbleChart.getAttribute('data-subscribers')), | ||
| openRates = JSON.parse( | ||
| indexBubbleChart.getAttribute('data-open-rates')) | ||
| .map(val => Math.round(1000 * val) / 10), | ||
| listAges = JSON.parse(indexBubbleChart.getAttribute('data-ages')), | ||
| janFirstDate = new Date( | ||
| new Date(new Date().getFullYear() - 5, 0, 1).toUTCString()); | ||
|
|
||
| // Bubble chart data from the database | ||
| const dbData = { | ||
| x: listAges, | ||
| y: openRates, | ||
| text: Array.from( | ||
| {length: listAges.length}, | ||
| (v, i) => | ||
| 'Age: ' + listAges[i] + ' months<br>' + | ||
| 'Open Rate: ' + openRates[i] + '%<br>' + | ||
| 'Subscribers: ' + subscribers[i].toLocaleString() | ||
| ), | ||
| hoverinfo: 'text', | ||
| hoverlabel: { | ||
| bgcolor: 'rgba(167, 25, 48, .85)', | ||
| font: { | ||
| family: 'Montserrat, sans-serif', | ||
| size: 12 | ||
| }, | ||
|
|
||
| }, | ||
| mode: 'markers', | ||
| marker: { | ||
| size: subscribers, | ||
| sizeref: 2.0 * Math.max(...subscribers) / (60**2), | ||
| sizemode: 'area', | ||
| color: new Array(subscribers.length).fill('rgba(167, 25, 48, .85)') | ||
| } | ||
| }; | ||
|
|
||
| // Prepopulated dummy 'user' data | ||
| const userData = { | ||
| x: [dateDiff(janFirstDate)], | ||
| y: [7.5], | ||
| text: ['Age: ' + dateDiff(janFirstDate) + | ||
| ' months<br>Open Rate: 7.5%<br>Subscribers: 5,000'], | ||
| hoverinfo: 'text', | ||
| hoverlabel: { | ||
| bgcolor: 'rgba(215, 164, 45, 0.85)', | ||
| font: { | ||
| color: 'white', | ||
| family: 'Montserrat, sans-serif', | ||
| size: 12 | ||
| }, | ||
| bordercolor: 'white' | ||
| }, | ||
| mode: 'markers', | ||
| marker: { | ||
| size: [5000], | ||
| sizeref: 2.0 * Math.max(...subscribers) / (60**2), | ||
| sizemode: 'area', | ||
| color: ['rgba(215, 164, 45, 0.85)'] | ||
| } | ||
| }; | ||
|
|
||
| const data = [dbData, userData]; | ||
|
|
||
| // Bubble chart visual appearance | ||
| const layout = { | ||
| font: { | ||
| family: 'Montserrat, sans-serif', | ||
| size: 16, | ||
| }, | ||
| yaxis: { | ||
| range: [0, (1.25 * Math.max(...openRates) > 100) ? 100 : | ||
| 1.25 * Math.max(...openRates)], | ||
| color: '#aaa', | ||
| tickfont: { | ||
| color: '#555' | ||
| }, | ||
| tickprefix: ' ', | ||
| ticksuffix: '% ', | ||
| title: 'List Open Rate', | ||
| titlefont: { | ||
| color: '#555' | ||
| }, | ||
| automargin: true, | ||
| fixedrange: true | ||
| }, | ||
| xaxis: { | ||
| range: [0, 1.15 * Math.max(...listAges)], | ||
| color: '#aaa', | ||
| tickfont: { | ||
| color: '#555' | ||
| }, | ||
| tickformat: ',', | ||
| title: 'List Age (Months)', | ||
| titlefont: { | ||
| color: '#555' | ||
| }, | ||
| fixedrange: true | ||
| }, | ||
| showlegend: false, | ||
| height: 525, | ||
| margin: { | ||
| t: 5, | ||
| b: 105 | ||
| }, | ||
| hovermode: 'closest' | ||
| }; | ||
|
|
||
| const config = { | ||
| responsive: true, | ||
| displayModeBar: false | ||
| }; | ||
|
|
||
| Plotly.newPlot(indexBubbleChart, data, layout, config); | ||
|
|
||
| // Instantiate a flatpickr date picker widget on the list age field | ||
| flatpickr('#enter-list-age', { | ||
| defaultDate: janFirstDate, | ||
| maxDate: 'today', | ||
| dateFormat: 'm/d/Y' | ||
| }); | ||
|
|
||
| const enterStatsFields = document.querySelectorAll('.enter-stats input'); | ||
| for (let i = 0; i < enterStatsFields.length; ++i) { | ||
| const elt = enterStatsFields[i]; | ||
| elt.addEventListener('change', () => updateChart(450)); | ||
| } | ||
|
|
||
| /* Event listener which triggers an animation when the chart comes into view */ | ||
| const chartVisibleHandler = () => { | ||
| const | ||
| rect = indexBubbleChart.getBoundingClientRect(), | ||
| top = rect.top, | ||
| bottom = rect.bottom - 45; | ||
| if (top >= 0 && bottom <= window.innerHeight) { | ||
| const | ||
| listSizeField = document.getElementById('enter-list-size'), | ||
| openRateField = document.getElementById('enter-open-rate'); | ||
| listSizeField.value = '25,000'; | ||
| openRateField.value = '30%'; | ||
| updateChart(1500); | ||
| document.removeEventListener('scroll', debouncedChartHandler); | ||
| } | ||
| } | ||
|
|
||
| const debouncedChartHandler = debounced(50, chartVisibleHandler); | ||
|
|
||
| document.addEventListener('scroll', debouncedChartHandler); | ||
| } |
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