Check for filterNextClick in evaluating isZoomingOrPanning (#924)

Author: joshkel

src/core.ts

@@ -274,7 +274,13 @@ export function isZoomedOrPanned(chart: Chart) {
   return false
 }
 
+export function isZoomingOrPanningState(state: State) {
+  return state.panning || state.dragging
+}
+
 export function isZoomingOrPanning(chart: Chart) {
   const state = getState(chart)
-  return state.panning || state.dragging
+  // From the perspective of outside callers, zooming and panning are still
+  // active if we haven't yet cleared the next click.
+  return !!(isZoomingOrPanningState(state) || state.filterNextClick)
 }

src/plugin.ts

@@ -11,6 +11,7 @@ import {
   getZoomedScaleBounds,
   isZoomedOrPanned,
   isZoomingOrPanning,
+  isZoomingOrPanningState,
   zoomRect,
 } from './core'
 import { panFunctions, zoomFunctions, zoomRectFunctions } from './scale.types'
@@ -97,13 +98,13 @@ export default {
     chart: Chart,
     { event }: { event: ChartEvent; replay: boolean; cancelable: true; inChartArea: boolean }
   ): boolean | void {
-    if (isZoomingOrPanning(chart)) {
+    const state = getState(chart)
+    if (isZoomingOrPanningState(state)) {
       // cancel any event handling while panning or dragging
       return false
     }
     // cancel the next click or mouseup after drag or pan
     if (event.type === 'click' || event.type === 'mouseup') {
-      const state = getState(chart)
       if (state.filterNextClick) {
         state.filterNextClick = false
         return false