Implement read-only indexedb-internals

content/browser/indexed_db/indexed_db_internals_ui.cc

 // Copyright (c) 2013 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 "content/browser/indexed_db/indexed_db_internals_ui.h"
 
+#include <algorithm>
+
+#include "base/bind.h"
+#include "base/threading/platform_thread.h"
+#include "base/values.h"
+#include "content/public/browser/browser_context.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/storage_partition.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui.h"
 #include "content/public/browser/web_ui_data_source.h"
 #include "content/public/common/url_constants.h"
 #include "grit/content_resources.h"
 
 namespace content {
 
 IndexedDBInternalsUI::IndexedDBInternalsUI(WebUI* web_ui)
-  : WebUIController(web_ui) {
+    : WebUIController(web_ui),
+      fetching_(false) {
+  web_ui->RegisterMessageCallback(
+      "getAllOrigins",
+      base::Bind(&IndexedDBInternalsUI::GetAllOrigins,
+                 base::Unretained(this)));
+
   WebUIDataSource* source =
       WebUIDataSource::Create(chrome::kChromeUIIndexedDBInternalsHost);
-
+  source->SetUseJsonJSFormatV2();
   source->SetJsonPath("strings.js");
   source->AddResourcePath("indexeddb_internals.js",
                           IDR_INDEXED_DB_INTERNALS_JS);
   source->AddResourcePath("indexeddb_internals.css",
                           IDR_INDEXED_DB_INTERNALS_CSS);
   source->SetDefaultResource(IDR_INDEXED_DB_INTERNALS_HTML);
 
   BrowserContext* browser_context =
       web_ui->GetWebContents()->GetBrowserContext();
   WebUIDataSource::Add(browser_context, source);
 }
 
 IndexedDBInternalsUI::~IndexedDBInternalsUI() {
 }
+
+void IndexedDBInternalsUI::GetAllOrigins(const base::ListValue* args) {

[jsbell, 2013/04/11 18:56:20]

Add a DCHECK that this is on the UI thread?

+  DCHECK(!fetching_);
+
+  fetching_ = true;
+  BrowserContext* browser_context =
+      web_ui()->GetWebContents()->GetBrowserContext();
+
+  // TODO(alecflett): do this for each storage partition in the context
+  StoragePartition* partition =
+      BrowserContext::GetDefaultStoragePartition(browser_context);
+  scoped_refptr<IndexedDBContext> context = partition->GetIndexedDBContext();
+
+  BrowserThread::PostTask(
+      BrowserThread::WEBKIT_DEPRECATED, FROM_HERE,
+      base::Bind(
+          &IndexedDBInternalsUI::GetAllOriginsOnWebkitThread,
+          base::Unretained(this),
+          context));
 }
+
+bool sort_by_hostname(const IndexedDBInfo& i, const IndexedDBInfo& j) {

[jsbell, 2013/04/11 18:56:20]

Nit: SortByHostName or e.g. HostNameComparator

+  return i.origin.host() < j.origin.host();
+}
+
+void IndexedDBInternalsUI::GetAllOriginsOnWebkitThread(
+    scoped_refptr<IndexedDBContext> context) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT_DEPRECATED));
+
+  scoped_ptr<std::vector<IndexedDBInfo> > origins(
+      new std::vector<IndexedDBInfo>(context->GetAllOriginsInfo()));
+  sort(origins->begin(), origins->end(), sort_by_hostname);

[jsbell, 2013/04/11 18:56:20]

Nit: std::sort

+
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&IndexedDBInternalsUI::OnOriginsReady, base::Unretained(this),
+                 base::Passed(&origins)));
+}
+
+void IndexedDBInternalsUI::OnOriginsReady(

[jsbell, 2013/04/11 18:56:20]

Add a DCHECK that this is on the UI thread?

+    scoped_ptr<std::vector<IndexedDBInfo> > origins) {
+  base::ListValue urls;
+  fetching_ = false;
+  for (std::vector<IndexedDBInfo>::const_iterator iter = origins->begin();
+       iter != origins->end(); ++iter) {
+    base::DictionaryValue* info = new DictionaryValue;
+    info->SetString("url", iter->origin.spec());
+    info->SetDouble("size", iter->size);
+    info->SetDouble("last_modified", iter->last_modified.ToJsTime());
+    urls.Append(info);
+  }
+  web_ui()->CallJavascriptFunction("indexeddb.onOriginsReady", urls);
+}
+}