Cache Storage API: Hook up to chrome://settings/cookies

chrome/browser/browsing_data/browsing_data_cache_storage_helper.cc

+// 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 "chrome/browser/browsing_data/browsing_data_cache_storage_helper.h"
+
+#include <vector>
+
+#include "base/bind.h"
+#include "base/callback.h"
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string_util.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/browsing_data/browsing_data_helper.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/cache_storage_context.h"
+
+using content::BrowserThread;
+using content::CacheStorageContext;
+using content::CacheStorageUsageInfo;
+
+BrowsingDataCacheStorageHelper::BrowsingDataCacheStorageHelper(
+    CacheStorageContext* cache_storage_context)
+    : cache_storage_context_(cache_storage_context) {
+  DCHECK(cache_storage_context_);
+}
+
+BrowsingDataCacheStorageHelper::~BrowsingDataCacheStorageHelper() {}
+
+void BrowsingDataCacheStorageHelper::StartFetching(
+    const base::Callback<void(const std::list<CacheStorageUsageInfo>&)>&
+        callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  DCHECK(!is_fetching_);
+  DCHECK(!callback.is_null());
+
+  is_fetching_ = true;
+  completion_callback_ = callback;
+  BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      base::Bind(
+          &BrowsingDataCacheStorageHelper::FetchCacheStorageUsageInfoOnIOThread,
+          this));
+}
+
+void BrowsingDataCacheStorageHelper::DeleteCacheStorage(const GURL& origin) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      base::Bind(&BrowsingDataCacheStorageHelper::DeleteCacheStorageOnIOThread,
+                 this, origin));
+}
+
+void BrowsingDataCacheStorageHelper::FetchCacheStorageUsageInfoOnIOThread() {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  cache_storage_context_->GetAllOriginsInfo(base::Bind(
+      &BrowsingDataCacheStorageHelper::GetAllOriginsInfoCallback, this));
+}
+
+void BrowsingDataCacheStorageHelper::GetAllOriginsInfoCallback(
+    const std::vector<CacheStorageUsageInfo>& origins) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  for (const CacheStorageUsageInfo& origin : origins) {
+    if (!BrowsingDataHelper::HasWebScheme(origin.origin))
+      continue;  // Non-websafe state is not considered browsing data.
+    cache_storage_info_.push_back(origin);

[michaeln, 2015/08/18 22:25:51]

is the cache_storagse_info_ data member really needed, look like you may be able
create the list as a local and then pass it NotifyOnUIThread in the bind
closure?

[jsbell, 2015/08/19 01:06:19]

Done. Excellent suggestion, definitely simplifies things.

+  }
+
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&BrowsingDataCacheStorageHelper::NotifyOnUIThread, this));
+}
+
+void BrowsingDataCacheStorageHelper::NotifyOnUIThread() {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  DCHECK(is_fetching_);
+  completion_callback_.Run(cache_storage_info_);
+  completion_callback_.Reset();
+  is_fetching_ = false;
+}
+
+void BrowsingDataCacheStorageHelper::DeleteCacheStorageOnIOThread(
+    const GURL& origin) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  cache_storage_context_->DeleteForOrigin(origin);
+}
+
+CannedBrowsingDataCacheStorageHelper::PendingCacheStorageUsageInfo::

[michaeln, 2015/08/18 22:25:51]

i hope this canned stuff is dead stripped, i don't like this code either

+    PendingCacheStorageUsageInfo(const GURL& origin,
+                                 int64 total_size_bytes,
+                                 const base::Time& last_modified)
+    : origin(origin),
+      total_size_bytes(total_size_bytes),
+      last_modified(last_modified) {}
+
+CannedBrowsingDataCacheStorageHelper::PendingCacheStorageUsageInfo::
+    ~PendingCacheStorageUsageInfo() {}
+
+bool CannedBrowsingDataCacheStorageHelper::PendingCacheStorageUsageInfo::
+operator<(const PendingCacheStorageUsageInfo& other) const {
+  return origin < other.origin;
+}
+
+CannedBrowsingDataCacheStorageHelper::CannedBrowsingDataCacheStorageHelper(
+    content::CacheStorageContext* context)
+    : BrowsingDataCacheStorageHelper(context) {}
+
+CannedBrowsingDataCacheStorageHelper::~CannedBrowsingDataCacheStorageHelper() {}
+
+void CannedBrowsingDataCacheStorageHelper::AddCacheStorage(const GURL& origin) {
+  if (!BrowsingDataHelper::HasWebScheme(origin))
+    return;  // Non-websafe state is not considered browsing data.
+
+  pending_cache_storage_info_.insert(
+      PendingCacheStorageUsageInfo(origin, 0, base::Time()));
+}
+
+void CannedBrowsingDataCacheStorageHelper::Reset() {
+  cache_storage_info_.clear();
+  pending_cache_storage_info_.clear();
+}
+
+bool CannedBrowsingDataCacheStorageHelper::empty() const {
+  return cache_storage_info_.empty() && pending_cache_storage_info_.empty();
+}
+
+size_t CannedBrowsingDataCacheStorageHelper::GetCacheStorageCount() const {
+  return pending_cache_storage_info_.size();
+}
+
+const std::set<
+    CannedBrowsingDataCacheStorageHelper::PendingCacheStorageUsageInfo>&
+CannedBrowsingDataCacheStorageHelper::GetCacheStorageUsageInfo() const {
+  return pending_cache_storage_info_;
+}
+
+void CannedBrowsingDataCacheStorageHelper::StartFetching(
+    const base::Callback<void(const std::list<CacheStorageUsageInfo>&)>&
+        callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  DCHECK(!callback.is_null());
+
+  std::list<CacheStorageUsageInfo> result;
+  for (const PendingCacheStorageUsageInfo& pending_info :
+       pending_cache_storage_info_) {
+    CacheStorageUsageInfo info(pending_info.origin,
+                               pending_info.total_size_bytes,
+                               pending_info.last_modified);
+    result.push_back(info);
+  }
+
+  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
+                          base::Bind(callback, result));
+}
+
+void CannedBrowsingDataCacheStorageHelper::DeleteCacheStorage(
+    const GURL& origin) {
+  for (std::set<PendingCacheStorageUsageInfo>::iterator it =
+           pending_cache_storage_info_.begin();
+       it != pending_cache_storage_info_.end();) {
+    if (it->origin == origin)
+      pending_cache_storage_info_.erase(it++);
+    else
+      ++it;
+  }
+  BrowsingDataCacheStorageHelper::DeleteCacheStorage(origin);
+}