feat: add support for EventTarget (#1145)

Author: guybedford

runtime/StarlingMonkey

@@ -0,0 +1,14 @@
+{
+  "Once listener should be invoked only once": {
+    "status": "PASS"
+  },
+  "Once listener should be invoked only once even if the event is nested": {
+    "status": "PASS"
+  },
+  "Once listener should be added / removed like normal listeners": {
+    "status": "PASS"
+  },
+  "Multiple once listeners should be invoked even if the stopImmediatePropagation is set": {
+    "status": "PASS"
+  }
+}

tests/wpt-harness/expectations/dom/events/AddEventListenerOptions-once.any.js.json

@@ -0,0 +1,17 @@
+{
+  "Supports passive option on addEventListener only": {
+    "status": "PASS"
+  },
+  "preventDefault should be ignored if-and-only-if the passive option is true": {
+    "status": "PASS"
+  },
+  "returnValue should be ignored if-and-only-if the passive option is true": {
+    "status": "PASS"
+  },
+  "passive behavior of one listener should be unaffected by the presence of other listeners": {
+    "status": "PASS"
+  },
+  "Equivalence of option values": {
+    "status": "PASS"
+  }
+}

tests/wpt-harness/expectations/dom/events/AddEventListenerOptions-passive.any.js.json

@@ -0,0 +1,44 @@
+{
+  "Event-constructors": {
+    "status": "PASS"
+  },
+  "Event-constructors 1": {
+    "status": "PASS"
+  },
+  "Event-constructors 2": {
+    "status": "PASS"
+  },
+  "Event-constructors 3": {
+    "status": "PASS"
+  },
+  "Event-constructors 4": {
+    "status": "PASS"
+  },
+  "Event-constructors 5": {
+    "status": "PASS"
+  },
+  "Event-constructors 6": {
+    "status": "PASS"
+  },
+  "Event-constructors 7": {
+    "status": "PASS"
+  },
+  "Event-constructors 8": {
+    "status": "PASS"
+  },
+  "Event-constructors 9": {
+    "status": "PASS"
+  },
+  "Event-constructors 10": {
+    "status": "PASS"
+  },
+  "Event-constructors 11": {
+    "status": "PASS"
+  },
+  "Event-constructors 12": {
+    "status": "PASS"
+  },
+  "Event-constructors 13": {
+    "status": "PASS"
+  }
+}

tests/wpt-harness/expectations/dom/events/Event-constructors.any.js.json

@@ -0,0 +1,5 @@
+{
+  "Removing an event listener without explicit capture arg should succeed": {
+    "status": "PASS"
+  }
+}

tests/wpt-harness/expectations/dom/events/EventTarget-add-remove-listener.any.js.json

@@ -0,0 +1,5 @@
+{
+  "Adding a null event listener should succeed": {
+    "status": "PASS"
+  }
+}

tests/wpt-harness/expectations/dom/events/EventTarget-addEventListener.any.js.json

@@ -0,0 +1,11 @@
+{
+  "A constructed EventTarget can be used as expected": {
+    "status": "PASS"
+  },
+  "A constructed EventTarget implements dispatch correctly": {
+    "status": "PASS"
+  },
+  "EventTarget can be subclassed": {
+    "status": "PASS"
+  }
+}

tests/wpt-harness/expectations/dom/events/EventTarget-constructible.any.js.json

@@ -0,0 +1,5 @@
+{
+  "removing a null event listener should succeed": {
+    "status": "PASS"
+  }
+}

tests/wpt-harness/expectations/dom/events/EventTarget-removeEventListener.any.js.json

@@ -25,6 +25,13 @@
   "console/console-namespace-object-class-string.any.js",
   "console/console-tests-historical.any.js",
   "console/idlharness.any.js",
+  "dom/events/AddEventListenerOptions-once.any.js",
+  "dom/events/AddEventListenerOptions-passive.any.js",
+  "dom/events/Event-constructors.any.js",
+  "dom/events/EventTarget-add-remove-listener.any.js",
+  "dom/events/EventTarget-addEventListener.any.js",
+  "dom/events/EventTarget-constructible.any.js",
+  "dom/events/EventTarget-removeEventListener.any.js",
   "encoding/api-basics.any.js",
   "encoding/api-basics.any.js",
   "encoding/api-invalid-label.any.js",