From ec174170ba090728ebb83b05450d5550a514f43f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bartek=20Iwa=C5=84czuk?= <biwanczuk@gmail.com>
Date: Fri, 18 Sep 2020 16:01:50 +0200
Subject: refactor: move FileReader to op_crates/web (#7554)

---
 op_crates/web/01_event.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'op_crates/web/01_event.js')

diff --git a/op_crates/web/01_event.js b/op_crates/web/01_event.js
index 5b21d4402..b0d7f2939 100644
--- a/op_crates/web/01_event.js
+++ b/op_crates/web/01_event.js
@@ -1083,12 +1083,25 @@
     enumerable: true,
   });
 
+  // ProgressEvent could also be used in other DOM progress event emits.
+  // Current use is for FileReader.
+  class ProgressEvent extends Event {
+    constructor(type, eventInitDict = {}) {
+      super(type, eventInitDict);
+
+      this.lengthComputable = eventInitDict?.lengthComputable ?? false;
+      this.loaded = eventInitDict?.loaded ?? 0;
+      this.total = eventInitDict?.total ?? 0;
+    }
+  }
+
   window.Event = Event;
   window.EventTarget = EventTarget;
   window.ErrorEvent = ErrorEvent;
   window.CloseEvent = CloseEvent;
   window.MessageEvent = MessageEvent;
   window.CustomEvent = CustomEvent;
+  window.ProgressEvent = ProgressEvent;
   window.dispatchEvent = EventTarget.prototype.dispatchEvent;
   window.addEventListener = EventTarget.prototype.addEventListener;
   window.removeEventListener = EventTarget.prototype.removeEventListener;
-- 
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