From f36fcbe2be6546c0b24cbe3e83d0960b82e2a5fc Mon Sep 17 00:00:00 2001
From: Hassan Abdel-Rahman <hassan.abdelrahman@mhelabs.com>
Date: Mon, 27 Mar 2017 16:02:09 -0400
Subject: [PATCH] Fixes #14754 deprecate `canDispatchToEventMAnager`

---
 .../integration/event-dispatcher-test.js      | 29 +++++++++++++++++++
 .../ember-views/lib/mixins/view_support.js    | 11 ++++++-
 .../lib/system/event_dispatcher.js            | 12 +++++++-
 3 files changed, 50 insertions(+), 2 deletions(-)

diff --git a/packages/ember-glimmer/tests/integration/event-dispatcher-test.js b/packages/ember-glimmer/tests/integration/event-dispatcher-test.js
index 08b15a79429..abe3b58f698 100644
--- a/packages/ember-glimmer/tests/integration/event-dispatcher-test.js
+++ b/packages/ember-glimmer/tests/integration/event-dispatcher-test.js
@@ -6,6 +6,7 @@ import {
   run
 } from 'ember-metal';
 import { EMBER_IMPROVED_INSTRUMENTATION } from 'ember/features';
+import { EventDispatcher } from 'ember-views';
 
 let canDataTransfer = !!document.createEvent('HTMLEvents').dataTransfer;
 
@@ -138,6 +139,34 @@ moduleFor('EventDispatcher#setup', class extends RenderingTest {
     this.$('div').trigger('myevent');
   }
 
+  ['@test canDispatchToEventManager is deprecated'](assert) {
+    this.dispatcher.canDispatchToEventManager = null;
+    this.registerComponent('x-foo', {
+      ComponentClass: Component.extend({
+        eventManager: {
+          myEvent() {}
+        }
+      }),
+      template: `<p>Hello!</p>`
+    });
+
+    expectDeprecation(() => {
+      this.render(`{{x-foo}}`);
+    }, '[DEPRECATED] `canDispatchToEventManager` has been deprecated.');
+
+    this.$('div').trigger('myevent');
+  }
+
+  ['@test canDispatchToEventManager is deprecated in EventDispatcher'](assert) {
+    let MyDispatcher = EventDispatcher.extend({
+      canDispatchToEventManager: null
+    });
+
+    expectDeprecation(() => {
+      MyDispatcher.create();
+    }, '[DEPRECATED] `canDispatchToEventManager` has been deprecated.');
+  }
+
   ['@test a rootElement can be specified'](assert) {
     this.$().append('<div id="app"></div>');
     this.dispatcher.setup({ myevent: 'myEvent' }, '#app');
diff --git a/packages/ember-views/lib/mixins/view_support.js b/packages/ember-views/lib/mixins/view_support.js
index 84257912de3..53412226298 100644
--- a/packages/ember-views/lib/mixins/view_support.js
+++ b/packages/ember-views/lib/mixins/view_support.js
@@ -538,7 +538,16 @@ export default Mixin.create({
       let owner = getOwner(this);
       let dispatcher = owner && owner.lookup('event_dispatcher:main');
 
-      if (dispatcher && dispatcher.canDispatchToEventManager === null) {
+      deprecate(
+        `[DEPRECATED] \`canDispatchToEventManager\` has been deprecated.`,
+        !('canDispatchToEventManager' in dispatcher),
+        {
+          id: 'ember-views.event-dispatcher.canDispatchToEventManager',
+          until: '3.0.0'
+        }
+      );
+
+      if (dispatcher && !('canDispatchToEventManager' in dispatcher)) {
         dispatcher.canDispatchToEventManager = true;
       }
     }
diff --git a/packages/ember-views/lib/system/event_dispatcher.js b/packages/ember-views/lib/system/event_dispatcher.js
index 28d86a03162..65d8713cc8f 100644
--- a/packages/ember-views/lib/system/event_dispatcher.js
+++ b/packages/ember-views/lib/system/event_dispatcher.js
@@ -6,6 +6,7 @@
 import { assign, getOwner } from 'ember-utils';
 import { assert } from 'ember-debug';
 import { get, set, isNone, run } from 'ember-metal';
+import { deprecate } from 'ember-debug';
 import { Object as EmberObject } from 'ember-runtime';
 import jQuery from './jquery';
 import ActionManager from './action_manager';
@@ -129,13 +130,22 @@ export default EmberObject.extend({
     @type boolean
     @default false
     @since 1.7.0
+    @deprecated
     @private
   */
-  canDispatchToEventManager: null,
 
   init() {
     this._super();
     assert('EventDispatcher should never be instantiated in fastboot mode. Please report this as an Ember bug.', environment.hasDOM);
+
+    deprecate(
+      `[DEPRECATED] \`canDispatchToEventManager\` has been deprecated.`,
+      !('canDispatchToEventManager' in this),
+      {
+        id: 'ember-views.event-dispatcher.canDispatchToEventManager',
+        until: '3.0.0'
+      }
+    );
   },
 
   /**