Revert of Refactor BeforeInstallPromptEvent to use ScriptPromiseProperty

Source/modules/app_banner/BeforeInstallPromptEvent.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "modules/app_banner/BeforeInstallPromptEvent.h"
 
+#include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromise.h"
+#include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
+#include "modules/app_banner/AppBannerPromptResult.h"
 #include "modules/app_banner/BeforeInstallPromptEventInit.h"
 #include "public/platform/modules/app_banner/WebAppBannerClient.h"
 
 namespace blink {
 
 BeforeInstallPromptEvent::BeforeInstallPromptEvent()
 {
 }
 
-BeforeInstallPromptEvent::BeforeInstallPromptEvent(const AtomicString& name, ExecutionContext* executionContext, const Vector<String>& platforms, int requestId, WebAppBannerClient* client)
+BeforeInstallPromptEvent::BeforeInstallPromptEvent(const AtomicString& name, const Vector<String>& platforms, int requestId, WebAppBannerClient* client)
     : Event(name, false, true)
     , m_platforms(platforms)
     , m_requestId(requestId)
     , m_client(client)
-    , m_userChoice(new UserChoiceProperty(executionContext, this, UserChoiceProperty::UserChoice))
-    , m_prompt(new PromptProperty(executionContext, this, PromptProperty::Prompt))
+    , m_redispatched(false)
 {
 }
 
 BeforeInstallPromptEvent::BeforeInstallPromptEvent(const AtomicString& name, const BeforeInstallPromptEventInit& init)
     : Event(name, false, true)
     , m_requestId(-1)
     , m_client(nullptr)
+    , m_redispatched(false)
 {
     if (init.hasPlatforms())
         m_platforms = init.platforms();
 }
 
 BeforeInstallPromptEvent::~BeforeInstallPromptEvent()
 {
 }
 
 Vector<String> BeforeInstallPromptEvent::platforms() const
 {
     return m_platforms;
 }
 
 ScriptPromise BeforeInstallPromptEvent::userChoice(ScriptState* scriptState)
 {
-    if (m_userChoice)
-        return m_userChoice->promise(scriptState->world());
-    return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(InvalidStateError, "The prompt() method cannot be called on this event."));
+    if (m_userChoice.isEmpty() && m_client) {
+        ASSERT(m_requestId != -1);
+        RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+        m_userChoice = resolver->promise();
+        m_client->registerBannerCallbacks(m_requestId, new CallbackPromiseAdapter<AppBannerPromptResult, void>(resolver));
+    }
+
+    return m_userChoice;
 }
 
 const AtomicString& BeforeInstallPromptEvent::interfaceName() const
 {
     return EventNames::BeforeInstallPromptEvent;
 }
 
 ScriptPromise BeforeInstallPromptEvent::prompt(ScriptState* scriptState)
 {
-    if (!m_prompt)
-        return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(InvalidStateError, "The prompt() method cannot be called on this event."));
-
-    if (m_prompt->state() != PromptProperty::Pending)
-        return m_prompt->promise(scriptState->world());
-
-    if (!m_client || !defaultPrevented()) {
-        m_prompt->reject(DOMException::create(InvalidStateError, "The prompt() method may only be called once, following preventDefault()."));
-    } else {
+    if (m_client && defaultPrevented() && !m_redispatched) {
         ASSERT(m_requestId != -1);
-        m_prompt->resolve(ToV8UndefinedGenerator());
+        m_redispatched = true;
         m_client->showAppBanner(m_requestId);
+        return ScriptPromise::cast(scriptState, v8::Undefined(scriptState->isolate()));
     }
 
-    return m_prompt->promise(scriptState->world());
-}
-
-DEFINE_TRACE(BeforeInstallPromptEvent)
-{
-    visitor->trace(m_userChoice);
-    visitor->trace(m_prompt);
-    Event::trace(visitor);
+    return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(InvalidStateError, "The prompt() method may only be called once, following preventDefault()."));
 }
 
 } // namespace blink