Add 'Create Layer Selector Dropdown'

Create Layer Selector Dropdown.jsx

@@ -0,0 +1,56 @@
+/**
+ * Creates a null with a dropdown menu to select any layer in current comp,
+ * toggling its visibility.
+ *
+ * Also adds dropdown to EGP.
+ *
+ * @author Zack Lovatt <[email protected]>
+ * @version 0.1.0
+ */
+(function createLayerSelectorDropdown() {
+ var comp = app.project.activeItem;
+
+ if (!(comp && comp instanceof CompItem)) {
+ alert("Open a comp!");
+ return;
+ }
+
+ var layers = comp.layers;
+ var layerNames = [];
+ var selectorName = comp.name + " Selector";
+ var controllerName = "_Controller";
+
+ app.beginUndoGroup("Toggle All Comp Expressions");
+
+ try {
+ // Add expression to all layers, and get their names
+ for (var ii = 1, il = layers.length; ii <= il; ii++) {
+ var layer = layers[ii];
+ layerNames.push(layer.name);
+
+ layer.opacity.expression = [
+ "posterizeTime(0);",
+ 'const menu = thisComp.layer("' + controllerName + '").effect("' + selectorName + '")(1).value;',
+ "menu == index - 1 ? value : 0;"
+ ].join("\n");
+ }
+
+ // Create control null
+ var controlNull = comp.layers.addNull();
+ controlNull.name = controllerName;
+ controlNull.guideLayer = true;
+ controlNull.label = 14;
+ controlNull.enabled = false;
+ controlNull.moveToBeginning();
+
+ // Create the dropdown effect & name it
+ var dropdownEffect = controlNull.effect.addProperty("ADBE Dropdown Control");
+ var updatedDropdown = dropdownEffect.property(1).setPropertyParameters(layerNames);
+ updatedDropdown.propertyGroup(1).name = selectorName;
+ updatedDropdown.addToMotionGraphicsTemplate(comp);
+ } catch (e) {
+ alert(e, "Create Layer Selector Dropdown");
+ } finally {
+ app.endUndoGroup();
+ }
+})();

readme.md

@@ -172,7 +172,7 @@ Changes the background colour of all selected comps in the project panel to the
  <div>
  <div>
 
-#### [Convert New Gaussian Blur to Old](<https://raw.githubusercontent.com/zlovatt/zl_Scriptlets/master/Convert New Gaussian Blur to Old.jsx>)
+#### [Convert New Gaussian Blur to Old](<https://raw.githubusercontent.com/zlovatt/zl_Scriptlets/master/Convert New Gaussian Blur To Old.jsx>)
 
  </div>
  <div>
@@ -228,6 +228,28 @@ Creates a new null at the center of selected layers (or all comp layers, if none
 
 ---
 
+<div>
+ <div>
+ <div>
+ <div>
+
+#### [Create Layer Selector Dropdown](<https://raw.githubusercontent.com/zlovatt/zl_Scriptlets/master/Create Layer Selector Dropdown.jsx>)
+
+ </div>
+ <div>
+
+Creates a null with a dropdown menu to select any layer in current comp,
+toggling its visibility.
+
+Also adds dropdown to EGP.
+
+ </div>
+ </div>
+ </div>
+</div>
+
+---
+
 <div>
  <div>
  <div>