Use active view for fallback zoom actions

src/JS/zoom-increment.js

@@ -1,5 +1,21 @@
 STR((function (zoomDelta) {
-  var viewer = app.activeViewer.views[0];
+  var activeViewer = app.activeViewer;
+
+  if (!activeViewer || !activeViewer.views || !activeViewer.views.length) {
+    return;
+  }
+
+  var activeViewIndex = activeViewer.activeViewIndex;
+  if (
+    typeof activeViewIndex !== "number" ||
+    isNaN(activeViewIndex) ||
+    activeViewIndex < 0 ||
+    activeViewIndex >= activeViewer.views.length
+  ) {
+    activeViewIndex = 0;
+  }
+
+  var viewer = activeViewer.views[activeViewIndex];
   var newZoom = viewer.options.zoom * 100 + zoomDelta;
   if (!(zoomDelta % 1)) {
     var epsilon = 0.0000000000001;

src/JS/zoom-set-to.js

@@ -1,6 +1,23 @@
 STR((function (zoomValue) {
+  var activeViewer = app.activeViewer;
+
+  if (!activeViewer || !activeViewer.views || !activeViewer.views.length) {
+    return;
+  }
+
   if (zoomValue < 0.8) {
     zoomValue = 0.8;
   }
-  app.activeViewer.views[0].options.zoom = zoomValue / 100;
+
+  var activeViewIndex = activeViewer.activeViewIndex;
+  if (
+    typeof activeViewIndex !== "number" ||
+    isNaN(activeViewIndex) ||
+    activeViewIndex < 0 ||
+    activeViewIndex >= activeViewer.views.length
+  ) {
+    activeViewIndex = 0;
+  }
+
+  activeViewer.views[activeViewIndex].options.zoom = zoomValue / 100;
 }))

src/ae-zoom.h

@@ -12,7 +12,7 @@
 #include "entry.h"
 #include <nlohmann/json.hpp>
 
-const std::string VERSION = "0.3.1";
+const std::string VERSION = "0.3.2";
 using json = nlohmann::json;
 
 #define AEGP_MAX_STREAM_DIM 4