fixed resizer for both left and right pane

src/public/app/services/resizer.js

@@ -0,0 +1,65 @@
+import options from "./options.js";
+
+let leftInstance;
+let rightInstance;
+
+function setupLeftPaneResizer(leftPaneVisible) {
+    if (leftInstance) {
+        leftInstance.destroy();
+        leftInstance = null;
+    }
+
+    $("#left-pane").toggle(leftPaneVisible);
+
+    if (!leftPaneVisible) {
+        $("#rest-pane").css('width', '100%');
+
+        return;
+    }
+
+    let leftPaneWidth = options.getInt('leftPaneWidth');
+    if (!leftPaneWidth || leftPaneWidth < 5) {
+        leftPaneWidth = 5;
+    }
+
+    if (leftPaneVisible) {
+        leftInstance = Split(['#left-pane', '#rest-pane'], {
+            sizes: [leftPaneWidth, 100 - leftPaneWidth],
+            gutterSize: 5,
+            onDragEnd: sizes => options.save('leftPaneWidth', Math.round(sizes[0]))
+        });
+    }
+}
+
+function setupRightPaneResizer() {
+    if (rightInstance) {
+        leftInstance.destroy();
+        leftInstance = null;
+    }
+
+    const rightPaneVisible = $("#right-pane").is(":visible");
+
+    if (!rightPaneVisible) {
+        $("#center-pane").css('width', '100%');
+
+        return;
+    }
+
+    let rightPaneWidth = options.getInt('rightPaneWidth');
+    if (!rightPaneWidth || rightPaneWidth < 5) {
+        rightPaneWidth = 5;
+    }
+
+    if (rightPaneVisible) {
+        leftInstance = Split(['#center-pane', '#right-pane'], {
+            sizes: [100 - rightPaneWidth, rightPaneWidth],
+            gutterSize: 5,
+            onDragEnd: sizes => options.save('rightPaneWidth', Math.round(sizes[0]))
+        });
+    }
+}
+
+export default {
+    setupLeftPaneResizer,
+    setupRightPaneResizer,
+};