Switch to ES5 syntax

Author: camdecoster

src/components/modebar/buttons.js

@@ -544,19 +544,19 @@ function handleGeo(gd, ev) {
         if(attr === 'zoom') {
             var scale = geoLayout.projection.scale;
             var minscale = geoLayout.projection.minscale;
-            var maxscale = geoLayout.projection.maxscale;
-
-            if(maxscale === -1) maxscale = Infinity;
+            var maxscale = geoLayout.projection.maxscale === -1 ? Infinity : geoLayout.projection.maxscale;
+            var max = Math.max(minscale, maxscale);
+            var min = Math.min(minscale, maxscale);
             var newScale = (val === 'in') ? 2 * scale : 0.5 * scale;
 
             // make sure the scale is within the min/max bounds
-            if(newScale > maxscale) {
-                newScale = maxscale;
-            } else if(newScale < minscale) {
-                newScale = minscale;
+            if (newScale > max) {
+                newScale = max;
+            } else if (newScale < min) {
+                newScale = min;
             }
 
-            if(newScale !== scale) {
+            if (newScale !== scale) {
                 Registry.call('_guiRelayout', gd, id + '.projection.scale', newScale);
             }
         }

src/plots/geo/geo.js

@@ -484,7 +484,7 @@ proto.updateFx = function(fullLayout, geoLayout) {
 
     if(dragMode === 'pan') {
         bgRect.node().onmousedown = null;
-        const zoom = createGeoZoom(_this, geoLayout)
+        var zoom = createGeoZoom(_this, geoLayout)
         bgRect.call(zoom);
         // TODO: Figure out how to restrict when this transition occurs. Or is it a no-op if nothing has changed?
         // Trigger transition to handle if minscale attribute isn't 0
@@ -715,10 +715,10 @@ function getProjection(geoLayout) {
 
     // https://d3js.org/d3-zoom#zoom_scaleExtent
     projection.scaleExtent = () => {
-        let { minscale, maxscale } = projLayout;
-        maxscale = maxscale === -1 ? Infinity : maxscale;
-        const max = Math.max(minscale, maxscale);
-        const min = Math.min(minscale, maxscale);
+        var minscale = projLayout.minscale;
+        var maxscale = projLayout.maxscale === -1 ? Infinity : projLayout.maxscale;
+        var max = Math.max(minscale, maxscale);
+        var min = Math.min(minscale, maxscale);
         return [100 * min, 100 * max];
     };
 

src/plots/geo/zoom.js

@@ -133,21 +133,21 @@ function zoomNonClipped(geo, projection) {
     function handleZoomstart() {
         d3.select(this).style(zoomstartStyle);
 
-        const { bottom, left, right, top } = this.getBoundingClientRect()
+        var rect = this.getBoundingClientRect()
         mouse0 = d3.event.sourceEvent
             ? d3.mouse(this)
-            : [(left + right) / 2, (bottom + top) / 2];
+            : [(rect.left + rect.right) / 2, (rect.bottom + rect.top) / 2];
         rotate0 = projection.rotate();
         translate0 = projection.translate();
         lastRotate = rotate0;
         zoomPoint = position(mouse0);
     }
 
     function handleZoom() {
-        const { bottom, left, right, top } = this.getBoundingClientRect()
+        var rect = this.getBoundingClientRect()
         mouse1 = d3.event.sourceEvent
             ? d3.mouse(this)
-            : [(left + right) / 2, (bottom + top) / 2];
+            : [(rect.left + rect.right) / 2, (rect.bottom + rect.top) / 2];
         if(outside(mouse0)) {
             zoom.scale(projection.scale());
             zoom.translate(projection.translate());
@@ -216,10 +216,10 @@ function zoomClipped(geo, projection) {
     zoom.on('zoomstart', function() {
         d3.select(this).style(zoomstartStyle);
 
-        const { bottom, left, right, top } = this.getBoundingClientRect()
-        let mouse0 = d3.event.sourceEvent
+        var rect = this.getBoundingClientRect()
+        var mouse0 = d3.event.sourceEvent
             ? d3.mouse(this)
-            : [(left + right) / 2, (bottom + top) / 2];
+            : [(rect.left + rect.right) / 2, (rect.bottom + rect.top) / 2];
         var rotate0 = projection.rotate();
         var lastRotate = rotate0;
         var translate0 = projection.translate();
@@ -228,10 +228,10 @@ function zoomClipped(geo, projection) {
         zoomPoint = position(projection, mouse0);
 
         zoomOn.call(zoom, 'zoom', function() {
-            const { bottom, left, right, top } = this.getBoundingClientRect()
-            let mouse1 = d3.event.sourceEvent
+            var rect = this.getBoundingClientRect()
+            var mouse1 = d3.event.sourceEvent
                 ? d3.mouse(this)
-                : [(left + right) / 2, (bottom + top) / 2];
+                : [(rect.left + rect.right) / 2, (rect.bottom + rect.top) / 2];
 
             projection.scale(view.k = d3.event.scale);