1 files changed, 403 insertions, 0 deletions
diff --git a/alarm/node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js b/alarm/node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js
new file mode 100644
index 0000000..15152fd
--- /dev/null
+++ b/alarm/node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js
@@ -0,0 +1,403 @@
+"use strict";
+const DOMException = require("domexception/webidl2js-wrapper");
+
+const reportException = require("../helpers/runtime-script-errors");
+const idlUtils = require("../generated/utils");
+const { nodeRoot } = require("../helpers/node");
+const {
+  isNode, isShadowRoot, isSlotable, getEventTargetParent,
+  isShadowInclusiveAncestor, retarget
+} = require("../helpers/shadow-dom");
+
+const MouseEvent = require("../generated/MouseEvent");
+
+const EVENT_PHASE = {
+  NONE: 0,
+  CAPTURING_PHASE: 1,
+  AT_TARGET: 2,
+  BUBBLING_PHASE: 3
+};
+
+class EventTargetImpl {
+  constructor(globalObject) {
+    this._globalObject = globalObject;
+    this._eventListeners = Object.create(null);
+  }
+
+  addEventListener(type, callback, options) {
+    options = normalizeEventHandlerOptions(options, ["capture", "once", "passive"]);
+
+    if (callback === null) {
+      return;
+    }
+
+    if (!this._eventListeners[type]) {
+      this._eventListeners[type] = [];
+    }
+
+    for (let i = 0; i < this._eventListeners[type].length; ++i) {
+      const listener = this._eventListeners[type][i];
+      if (
+        listener.callback.objectReference === callback.objectReference &&
+        listener.options.capture === options.capture
+      ) {
+        return;
+      }
+    }
+
+    this._eventListeners[type].push({
+      callback,
+      options
+    });
+  }
+
+  removeEventListener(type, callback, options) {
+    options = normalizeEventHandlerOptions(options, ["capture"]);
+
+    if (callback === null) {
+      // Optimization, not in the spec.
+      return;
+    }
+
+    if (!this._eventListeners[type]) {
+      return;
+    }
+
+    for (let i = 0; i < this._eventListeners[type].length; ++i) {
+      const listener = this._eventListeners[type][i];
+      if (
+        listener.callback.objectReference === callback.objectReference &&
+        listener.options.capture === options.capture
+      ) {
+        this._eventListeners[type].splice(i, 1);
+        break;
+      }
+    }
+  }
+
+  dispatchEvent(eventImpl) {
+    if (eventImpl._dispatchFlag || !eventImpl._initializedFlag) {
+      throw DOMException.create(this._globalObject, [
+        "Tried to dispatch an uninitialized event",
+        "InvalidStateError"
+      ]);
+    }
+    if (eventImpl.eventPhase !== EVENT_PHASE.NONE) {
+      throw DOMException.create(this._globalObject, [
+        "Tried to dispatch a dispatching event",
+        "InvalidStateError"
+      ]);
+    }
+
+    eventImpl.isTrusted = false;
+
+    return this._dispatch(eventImpl);
+  }
+
+  // https://dom.spec.whatwg.org/#get-the-parent
+  _getTheParent() {
+    return null;
+  }
+
+  // https://dom.spec.whatwg.org/#concept-event-dispatch
+  // legacyOutputDidListenersThrowFlag optional parameter is not necessary here since it is only used by indexDB.
+  _dispatch(eventImpl, targetOverride /* , legacyOutputDidListenersThrowFlag */) {
+    let targetImpl = this;
+    let clearTargets = false;
+    let activationTarget = null;
+
+    eventImpl._dispatchFlag = true;
+
+    targetOverride = targetOverride || targetImpl;
+    let relatedTarget = retarget(eventImpl.relatedTarget, targetImpl);
+
+    if (targetImpl !== relatedTarget || targetImpl === eventImpl.relatedTarget) {
+      const touchTargets = [];
+
+      appendToEventPath(eventImpl, targetImpl, targetOverride, relatedTarget, touchTargets, false);
+
+      const isActivationEvent = MouseEvent.isImpl(eventImpl) && eventImpl.type === "click";
+
+      if (isActivationEvent && targetImpl._hasActivationBehavior) {
+        activationTarget = targetImpl;
+      }
+
+      let slotInClosedTree = false;
+      let slotable = isSlotable(targetImpl) && targetImpl._assignedSlot ? targetImpl : null;
+      let parent = getEventTargetParent(targetImpl, eventImpl);
+
+      // Populate event path
+      // https://dom.spec.whatwg.org/#event-path
+      while (parent !== null) {
+        if (slotable !== null) {
+          if (parent.localName !== "slot") {
+            throw new Error(`JSDOM Internal Error: Expected parent to be a Slot`);
+          }
+
+          slotable = null;
+
+          const parentRoot = nodeRoot(parent);
+          if (isShadowRoot(parentRoot) && parentRoot.mode === "closed") {
+            slotInClosedTree = true;
+          }
+        }
+
+        if (isSlotable(parent) && parent._assignedSlot) {
+          slotable = parent;
+        }
+
+        relatedTarget = retarget(eventImpl.relatedTarget, parent);
+
+        if (
+          (isNode(parent) && isShadowInclusiveAncestor(nodeRoot(targetImpl), parent)) ||
+          idlUtils.wrapperForImpl(parent).constructor.name === "Window"
+        ) {
+          if (isActivationEvent && eventImpl.bubbles && activationTarget === null &&
+              parent._hasActivationBehavior) {
+            activationTarget = parent;
+          }
+
+          appendToEventPath(eventImpl, parent, null, relatedTarget, touchTargets, slotInClosedTree);
+        } else if (parent === relatedTarget) {
+          parent = null;
+        } else {
+          targetImpl = parent;
+
+          if (isActivationEvent && activationTarget === null && targetImpl._hasActivationBehavior) {
+            activationTarget = targetImpl;
+          }
+
+          appendToEventPath(eventImpl, parent, targetImpl, relatedTarget, touchTargets, slotInClosedTree);
+        }
+
+        if (parent !== null) {
+          parent = getEventTargetParent(parent, eventImpl);
+        }
+
+        slotInClosedTree = false;
+      }
+
+      let clearTargetsStructIndex = -1;
+      for (let i = eventImpl._path.length - 1; i >= 0 && clearTargetsStructIndex === -1; i--) {
+        if (eventImpl._path[i].target !== null) {
+          clearTargetsStructIndex = i;
+        }
+      }
+      const clearTargetsStruct = eventImpl._path[clearTargetsStructIndex];
+
+      clearTargets =
+          (isNode(clearTargetsStruct.target) && isShadowRoot(nodeRoot(clearTargetsStruct.target))) ||
+          (isNode(clearTargetsStruct.relatedTarget) && isShadowRoot(nodeRoot(clearTargetsStruct.relatedTarget)));
+
+      if (activationTarget !== null && activationTarget._legacyPreActivationBehavior) {
+        activationTarget._legacyPreActivationBehavior();
+      }
+
+      for (let i = eventImpl._path.length - 1; i >= 0; --i) {
+        const struct = eventImpl._path[i];
+
+        if (struct.target !== null) {
+          eventImpl.eventPhase = EVENT_PHASE.AT_TARGET;
+        } else {
+          eventImpl.eventPhase = EVENT_PHASE.CAPTURING_PHASE;
+        }
+
+        invokeEventListeners(struct, eventImpl, "capturing");
+      }
+
+      for (let i = 0; i < eventImpl._path.length; i++) {
+        const struct = eventImpl._path[i];
+
+        if (struct.target !== null) {
+          eventImpl.eventPhase = EVENT_PHASE.AT_TARGET;
+        } else {
+          if (!eventImpl.bubbles) {
+            continue;
+          }
+
+          eventImpl.eventPhase = EVENT_PHASE.BUBBLING_PHASE;
+        }
+
+        invokeEventListeners(struct, eventImpl, "bubbling");
+      }
+    }
+
+    eventImpl.eventPhase = EVENT_PHASE.NONE;
+
+    eventImpl.currentTarget = null;
+    eventImpl._path = [];
+    eventImpl._dispatchFlag = false;
+    eventImpl._stopPropagationFlag = false;
+    eventImpl._stopImmediatePropagationFlag = false;
+
+    if (clearTargets) {
+      eventImpl.target = null;
+      eventImpl.relatedTarget = null;
+    }
+
+    if (activationTarget !== null) {
+      if (!eventImpl._canceledFlag) {
+        activationTarget._activationBehavior(eventImpl);
+      } else if (activationTarget._legacyCanceledActivationBehavior) {
+        activationTarget._legacyCanceledActivationBehavior();
+      }
+    }
+
+    return !eventImpl._canceledFlag;
+  }
+}
+
+module.exports = {
+  implementation: EventTargetImpl
+};
+
+// https://dom.spec.whatwg.org/#concept-event-listener-invoke
+function invokeEventListeners(struct, eventImpl, phase) {
+  const structIndex = eventImpl._path.indexOf(struct);
+  for (let i = structIndex; i >= 0; i--) {
+    const t = eventImpl._path[i];
+    if (t.target) {
+      eventImpl.target = t.target;
+      break;
+    }
+  }
+
+  eventImpl.relatedTarget = idlUtils.wrapperForImpl(struct.relatedTarget);
+
+  if (eventImpl._stopPropagationFlag) {
+    return;
+  }
+
+  eventImpl.currentTarget = idlUtils.wrapperForImpl(struct.item);
+
+  const listeners = struct.item._eventListeners;
+  innerInvokeEventListeners(eventImpl, listeners, phase, struct.itemInShadowTree);
+}
+
+// https://dom.spec.whatwg.org/#concept-event-listener-inner-invoke
+function innerInvokeEventListeners(eventImpl, listeners, phase, itemInShadowTree) {
+  let found = false;
+
+  const { type, target } = eventImpl;
+  const wrapper = idlUtils.wrapperForImpl(target);
+
+  if (!listeners || !listeners[type]) {
+    return found;
+  }
+
+  // Copy event listeners before iterating since the list can be modified during the iteration.
+  const handlers = listeners[type].slice();
+
+  for (let i = 0; i < handlers.length; i++) {
+    const listener = handlers[i];
+    const { capture, once, passive } = listener.options;
+
+    // Check if the event listener has been removed since the listeners has been cloned.
+    if (!listeners[type].includes(listener)) {
+      continue;
+    }
+
+    found = true;
+
+    if (
+      (phase === "capturing" && !capture) ||
+      (phase === "bubbling" && capture)
+    ) {
+      continue;
+    }
+
+    if (once) {
+      listeners[type].splice(listeners[type].indexOf(listener), 1);
+    }
+
+    let window = null;
+    if (wrapper && wrapper._document) {
+      // Triggered by Window
+      window = wrapper;
+    } else if (target._ownerDocument) {
+      // Triggered by most webidl2js'ed instances
+      window = target._ownerDocument._defaultView;
+    } else if (wrapper._ownerDocument) {
+      // Currently triggered by some non-webidl2js things
+      window = wrapper._ownerDocument._defaultView;
+    }
+
+    let currentEvent;
+    if (window) {
+      currentEvent = window._currentEvent;
+      if (!itemInShadowTree) {
+        window._currentEvent = eventImpl;
+      }
+    }
+
+    if (passive) {
+      eventImpl._inPassiveListenerFlag = true;
+    }
+
+    try {
+      listener.callback.call(eventImpl.currentTarget, eventImpl);
+    } catch (e) {
+      if (window) {
+        reportException(window, e);
+      }
+      // Errors in window-less documents just get swallowed... can you think of anything better?
+    }
+
+    eventImpl._inPassiveListenerFlag = false;
+
+    if (window) {
+      window._currentEvent = currentEvent;
+    }
+
+    if (eventImpl._stopImmediatePropagationFlag) {
+      return found;
+    }
+  }
+
+  return found;
+}
+
+/**
+ * Normalize the event listeners options argument in order to get always a valid options object
+ * @param   {Object} options         - user defined options
+ * @param   {Array} defaultBoolKeys  - boolean properties that should belong to the options object
+ * @returns {Object} object containing at least the "defaultBoolKeys"
+ */
+function normalizeEventHandlerOptions(options, defaultBoolKeys) {
+  const returnValue = {};
+
+  // no need to go further here
+  if (typeof options === "boolean" || options === null || typeof options === "undefined") {
+    returnValue.capture = Boolean(options);
+    return returnValue;
+  }
+
+  // non objects options so we typecast its value as "capture" value
+  if (typeof options !== "object") {
+    returnValue.capture = Boolean(options);
+    // at this point we don't need to loop the "capture" key anymore
+    defaultBoolKeys = defaultBoolKeys.filter(k => k !== "capture");
+  }
+
+  for (const key of defaultBoolKeys) {
+    returnValue[key] = Boolean(options[key]);
+  }
+
+  return returnValue;
+}
+
+// https://dom.spec.whatwg.org/#concept-event-path-append
+function appendToEventPath(eventImpl, target, targetOverride, relatedTarget, touchTargets, slotInClosedTree) {
+  const itemInShadowTree = isNode(target) && isShadowRoot(nodeRoot(target));
+  const rootOfClosedTree = isShadowRoot(target) && target.mode === "closed";
+
+  eventImpl._path.push({
+    item: target,
+    itemInShadowTree,
+    target: targetOverride,
+    relatedTarget,
+    touchTargets,
+    rootOfClosedTree,
+    slotInClosedTree
+  });
+}