Add numeric chart panel

app/src/components/Sidebar/CodeDiff/ChartPreview.tsx

@@ -0,0 +1,82 @@
+import * as q from '../../../../../backend/src/Model'
+import * as React from 'react'
+import ShowChart from '@material-ui/icons/ShowChart'
+import TopicPlot from '../../TopicPlot'
+import { bindActionCreators } from 'redux'
+import { chartActions } from '../../../actions'
+import { connect } from 'react-redux'
+import { Fade, Paper, Popper, Tooltip } from '@material-ui/core'
+import { JsonPropertyLocation } from '../../../../../backend/src/JsonAstParser'
+
+interface Props {
+  treeNode: q.TreeNode<any>
+  classes: any
+  literal: JsonPropertyLocation
+  actions: {
+    chart: typeof chartActions
+  }
+}
+
+function ChartPreview(props: Props) {
+  const chartIconRef = React.useRef(null)
+  const [open, setOpen] = React.useState(false)
+
+  const onClick = React.useCallback(() => {
+    props.actions.chart.addChart({
+      topic: props.treeNode.path(),
+      dotPath: props.literal.path,
+    })
+  }, [props.literal.path, props.treeNode])
+
+  const mouseOver = React.useCallback(() => {
+    setOpen(true)
+  }, [])
+
+  const mouseOut = React.useCallback(() => {
+    setOpen(false)
+  }, [])
+
+  const hasEnoughDataToDisplayDiagrams = props.treeNode.messageHistory.count() > 1
+
+  let preview = hasEnoughDataToDisplayDiagrams ? (
+    <Tooltip title="Click to add to chart panel">
+      <ShowChart
+        ref={chartIconRef}
+        className={props.classes.icon}
+        onMouseEnter={mouseOver}
+        onMouseLeave={mouseOut}
+        onClick={onClick}
+      />
+    </Tooltip>
+  ) : (
+    <Tooltip title="Click to add to chart panel, not enough data for preview">
+      <ShowChart onClick={onClick} className={props.classes.icon} style={{ color: '#aaa' }} />
+    </Tooltip>
+  )
+
+  return (
+    <span>
+      {preview}
+      <Popper open={open} anchorEl={chartIconRef.current} placement="left-end">
+        <Fade in={open} timeout={300}>
+          <Paper style={{ width: '300px' }}>
+            {open ? <TopicPlot history={props.treeNode.messageHistory} dotPath={props.literal.path} /> : <span />}
+          </Paper>
+        </Fade>
+      </Popper>
+    </span>
+  )
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      chart: bindActionCreators(chartActions, dispatch),
+    },
+  }
+}
+
+export default connect(
+  undefined,
+  mapDispatchToProps
+)(ChartPreview)