Indent nested guide editor steps

app/renderer/editor.js

@@ -87,6 +87,16 @@ function stepNumberMap(steps) {
   return numbers;
 }
 
+function stepDepth(step, stepMap) {
+  let depth = 0;
+  let parent = step.parentStepId;
+  while (parent && stepMap.has(parent)) {
+    depth += 1;
+    parent = stepMap.get(parent).parentStepId;
+  }
+  return depth;
+}
+
 function isEditableTarget(target) {
   return target && (
     target.tagName === 'INPUT' ||
@@ -761,15 +771,10 @@ class GuideEditor {
     this.dom.selectStepsBtn.className = this.stepSelectMode ? 'primary' : '';
     for (const step of this.steps) {
       const number = numbers.get(step.stepId) || '';
-      let depth = 0;
-      let parent = step.parentStepId;
-      while (parent && this.stepMap.has(parent)) {
-        depth += 1;
-        parent = this.stepMap.get(parent).parentStepId;
-      }
+      const depth = stepDepth(step, this.stepMap);
       const selected = current && current.stepId === step.stepId;
       const checked = this.selectedSteps.has(step.stepId);
-      const item = el('div.step-item', {
+      const itemProps = {
         className: `step-item${selected ? ' selected' : ''}${depth ? ' sub' : ''}${step.skipped ? ' skipped' : ''}${step.hidden ? ' hiddenstep' : ''}`,
         dataset: { stepId: step.stepId },
         onClick: () => {
@@ -802,7 +807,9 @@ class GuideEditor {
             { label: 'Delete step', danger: true, action: () => this.deleteSelectedStep() },
           ]);
         },
-      },
+      };
+      if (depth) itemProps.style = { marginLeft: `${depth * 18}px` };
+      const item = el('div.step-item', itemProps,
         this.stepSelectMode
           ? el('input', {
             type: 'checkbox',
@@ -818,7 +825,8 @@ class GuideEditor {
           step.parentStepId ? 'sub' : '',
           step.hidden ? 'hidden' : '',
           step.skipped ? 'skipped' : '',
-      ].filter(Boolean).join(' · ')));
+        ].filter(Boolean).join(' · ')),
+      );
       this.dom.stepsList.append(item);
     }
     if (!this.steps.length) {