1 files changed, 52 insertions, 0 deletions
diff --git a/node_modules/rxjs/dist/esm/internal/observable/fromEvent.js b/node_modules/rxjs/dist/esm/internal/observable/fromEvent.js
new file mode 100644
index 0000000..fbb95c9
--- /dev/null
+++ b/node_modules/rxjs/dist/esm/internal/observable/fromEvent.js
@@ -0,0 +1,52 @@
+import { innerFrom } from '../observable/innerFrom';
+import { Observable } from '../Observable';
+import { mergeMap } from '../operators/mergeMap';
+import { isArrayLike } from '../util/isArrayLike';
+import { isFunction } from '../util/isFunction';
+import { mapOneOrManyArgs } from '../util/mapOneOrManyArgs';
+const nodeEventEmitterMethods = ['addListener', 'removeListener'];
+const eventTargetMethods = ['addEventListener', 'removeEventListener'];
+const jqueryMethods = ['on', 'off'];
+export function fromEvent(target, eventName, options, resultSelector) {
+    if (isFunction(options)) {
+        resultSelector = options;
+        options = undefined;
+    }
+    if (resultSelector) {
+        return fromEvent(target, eventName, options).pipe(mapOneOrManyArgs(resultSelector));
+    }
+    const [add, remove] = isEventTarget(target)
+        ? eventTargetMethods.map((methodName) => (handler) => target[methodName](eventName, handler, options))
+        :
+            isNodeStyleEventEmitter(target)
+                ? nodeEventEmitterMethods.map(toCommonHandlerRegistry(target, eventName))
+                : isJQueryStyleEventEmitter(target)
+                    ? jqueryMethods.map(toCommonHandlerRegistry(target, eventName))
+                    : [];
+    if (!add) {
+        if (isArrayLike(target)) {
+            return mergeMap((subTarget) => fromEvent(subTarget, eventName, options))(innerFrom(target));
+        }
+    }
+    if (!add) {
+        throw new TypeError('Invalid event target');
+    }
+    return new Observable((subscriber) => {
+        const handler = (...args) => subscriber.next(1 < args.length ? args : args[0]);
+        add(handler);
+        return () => remove(handler);
+    });
+}
+function toCommonHandlerRegistry(target, eventName) {
+    return (methodName) => (handler) => target[methodName](eventName, handler);
+}
+function isNodeStyleEventEmitter(target) {
+    return isFunction(target.addListener) && isFunction(target.removeListener);
+}
+function isJQueryStyleEventEmitter(target) {
+    return isFunction(target.on) && isFunction(target.off);
+}
+function isEventTarget(target) {
+    return isFunction(target.addEventListener) && isFunction(target.removeEventListener);
+}
+//# sourceMappingURL=fromEvent.js.map
+\ No newline at end of file