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js/SimpleLoadLineFromTextFile.js

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+import { app } from "../../scripts/app.js";
+import { api } from "../../scripts/api.js";
+
+app.registerExtension({
+    name: "Simple Load Line From Text File",
+    async beforeRegisterNodeDef(nodeType, nodeData, app) {
+        if (nodeData.name === "Simple Load Line From Text File") {
+            const origOnNodeCreated = nodeType.prototype.onNodeCreated;
+            nodeType.prototype.onNodeCreated = function() {
+                const r = origOnNodeCreated ? origOnNodeCreated.apply(this) : undefined;
+                let counter = 0;
+                function find_count(w) { 
+                    return w.name === "count"
+                }
+                const count = this.widgets.find(find_count);
+                count.type = "converted-widget"; // hidden
+                function do_counter() { 
+                    return counter++; 
+                }
+                count.serializeValue = do_counter;
+                function reset_counter() { 
+                    counter = 0;
+                }
+                api.addEventListener("promptQueued", reset_counter); // reset
+                return r;
+            }
+        }
+    }
+})