content/browser/service_worker/service_worker_unregister_job.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/service_worker/service_worker_unregister_job.h"
   6
   7 #include "base/memory/weak_ptr.h"
   8 #include "content/browser/service_worker/service_worker_context_core.h"
   9 #include "content/browser/service_worker/service_worker_job_coordinator.h"
  10 #include "content/browser/service_worker/service_worker_registration.h"
  11 #include "content/browser/service_worker/service_worker_storage.h"
  12 #include "content/browser/service_worker/service_worker_version.h"
  13 #include "content/common/service_worker/service_worker_utils.h"
  14
  15 namespace content {
  16
  17 typedef ServiceWorkerRegisterJobBase::RegistrationJobType RegistrationJobType;
  18
  19 ServiceWorkerUnregisterJob::ServiceWorkerUnregisterJob(
  20     base::WeakPtr<ServiceWorkerContextCore> context,
  21     const GURL& pattern)
  22     : context_(context),
  23       pattern_(pattern),
  24       is_promise_resolved_(false),
  25       weak_factory_(this) {
  26 }
  27
  28 ServiceWorkerUnregisterJob::~ServiceWorkerUnregisterJob() {}
  29
  30 void ServiceWorkerUnregisterJob::AddCallback(
  31     const UnregistrationCallback& callback) {
  32   callbacks_.push_back(callback);
  33 }
  34
  35 void ServiceWorkerUnregisterJob::Start() {
  36   context_->storage()->FindRegistrationForPattern(
  37       pattern_,
  38       base::Bind(&ServiceWorkerUnregisterJob::OnRegistrationFound,
  39                  weak_factory_.GetWeakPtr()));
  40 }
  41
  42 void ServiceWorkerUnregisterJob::Abort() {
  43   CompleteInternal(kInvalidServiceWorkerRegistrationId,
  44                    SERVICE_WORKER_ERROR_ABORT);
  45 }
  46
  47 bool ServiceWorkerUnregisterJob::Equals(
  48     ServiceWorkerRegisterJobBase* job) const {
  49   if (job->GetType() != GetType())
  50     return false;
  51   return static_cast<ServiceWorkerUnregisterJob*>(job)->pattern_ == pattern_;
  52 }
  53
  54 RegistrationJobType ServiceWorkerUnregisterJob::GetType() const {
  55   return UNREGISTRATION_JOB;
  56 }
  57
  58 void ServiceWorkerUnregisterJob::OnRegistrationFound(
  59     ServiceWorkerStatusCode status,
  60     const scoped_refptr<ServiceWorkerRegistration>& registration) {
  61   if (status == SERVICE_WORKER_ERROR_NOT_FOUND) {
  62     DCHECK(!registration.get());
  63     Complete(kInvalidServiceWorkerRegistrationId,
  64              SERVICE_WORKER_ERROR_NOT_FOUND);
  65     return;
  66   }
  67
  68   if (status != SERVICE_WORKER_OK || registration->is_uninstalling()) {
  69     Complete(kInvalidServiceWorkerRegistrationId, status);
  70     return;
  71   }
  72
  73   // TODO: "7. If registration.updatePromise is not null..."
  74
  75   // "8. Resolve promise."
  76   ResolvePromise(registration->id(), SERVICE_WORKER_OK);
  77
  78   registration->ClearWhenReady();
  79
  80   Complete(registration->id(), SERVICE_WORKER_OK);
  81 }
  82
  83 void ServiceWorkerUnregisterJob::Complete(int64 registration_id,
  84                                           ServiceWorkerStatusCode status) {
  85   CompleteInternal(registration_id, status);
  86   context_->job_coordinator()->FinishJob(pattern_, this);
  87 }
  88
  89 void ServiceWorkerUnregisterJob::CompleteInternal(
  90     int64 registration_id,
  91     ServiceWorkerStatusCode status) {
  92   if (!is_promise_resolved_)
  93     ResolvePromise(registration_id, status);
  94 }
  95
  96 void ServiceWorkerUnregisterJob::ResolvePromise(
  97     int64 registration_id,
  98     ServiceWorkerStatusCode status) {
  99   DCHECK(!is_promise_resolved_);
 100   is_promise_resolved_ = true;
 101   for (std::vector<UnregistrationCallback>::iterator it = callbacks_.begin();
 102        it != callbacks_.end();
 103        ++it) {
 104     it->Run(registration_id, status);
 105   }
 106 }
 107
 108 }  // namespace content