Show an extension info bubble when a script badge is clicked.

chrome/browser/ui/webui/extensions/extension_info_ui.cc

+// Copyright (c) 2012 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/ui/webui/extensions/extension_info_ui.h"
+
+#include "base/i18n/time_formatting.h"
+#include "base/stringprintf.h"
+#include "base/time.h"
+#include "base/values.h"
+#include "chrome/browser/extensions/extension_prefs.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_system.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/webui/chrome_web_ui_data_source.h"
+#include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
+#include "chrome/common/extensions/extension.h"
+#include "chrome/common/extensions/extension_icon_set.h"
+#include "chrome/common/url_constants.h"
+#include "content/public/browser/web_ui.h"
+#include "grit/browser_resources.h"
+#include "grit/generated_resources.h"
+
+ExtensionInfoUI::ExtensionInfoUI(content::WebUI* web_ui)
+    : content::WebUIController(web_ui) {

[Aaron Boodman, 2012/06/16 02:21:19]

Initialize extension_

[Yoyo Zhou, 2012/06/18 19:39:38]

Done.

+  ChromeWebUIDataSource* source =
+      new ChromeWebUIDataSource(chrome::kChromeUIExtensionInfoHost);
+
+  source->AddLocalizedString("isRunning", IDS_EXTENSION_INFO_IS_RUNNING);
+  source->AddLocalizedString("lastUpdated", IDS_EXTENSION_INFO_LAST_UPDATED);
+  source->set_use_json_js_format_v2();
+  source->set_json_path("strings.js");
+
+  source->add_resource_path("extension_info.css", IDR_EXTENSION_INFO_CSS);
+  source->add_resource_path("extension_info.js", IDR_EXTENSION_INFO_JS);
+  source->set_default_resource(IDR_EXTENSION_INFO_HTML);
+
+  Profile* profile = Profile::FromWebUI(web_ui);
+  ChromeURLDataManager::AddDataSource(profile, source);
+
+  web_ui->RegisterMessageCallback("requestExtensionInfo",
+      base::Bind(&ExtensionInfoUI::HandleRequestExtensionInfo,
+                 base::Unretained(this)));
+}
+
+ExtensionInfoUI::~ExtensionInfoUI() {
+}
+
+// static
+GURL ExtensionInfoUI::GetURL(const std::string& extension_id) {
+  return GURL(base::StringPrintf(
+      "%s%s", chrome::kChromeUIExtensionInfoURL, extension_id.c_str()));
+}
+
+void ExtensionInfoUI::HandleRequestExtensionInfo(const base::ListValue* args) {
+  DCHECK_EQ(1U, args->GetSize());
+
+  std::string extension_id;
+  if (!args->GetString(0, &extension_id))
+    return;
+
+  ExtensionService* extension_service =
+      ExtensionSystem::Get(Profile::FromWebUI(web_ui()))->extension_service();
+  extension_ = extension_service->extensions()->GetByID(extension_id);
+  if (!extension_)
+    return;
+
+  DictionaryValue result;
+  extension_->GetBasicInfo(true, &result);
+  // Set the icon URL.
+  GURL icon =
+      ExtensionIconSource::GetIconURL(extension_,
+                                      ExtensionIconSet::EXTENSION_ICON_MEDIUM,
+                                      ExtensionIconSet::MATCH_BIGGER,
+                                      false, NULL);
+  result.SetString("icon", icon.spec());
+  // Set the last update time (the install time).
+  base::Time install_time = extension_service->extension_prefs()->
+      GetInstallTime(extension_id);

[Aaron Boodman, 2012/06/16 02:21:19]

Neat! I didn't know we stored this! Are you sure it is the last updated date,
not the original install date?

[Yoyo Zhou, 2012/06/18 19:39:38]

I checked and I'm pretty sure this is the last time the extension was installed,
which would be updated each time the extension updates. We don't seem to store
the original install date.

Given that, "last updated" doesn't seem far off the mark, but other suggestions
would be welcome.

+  result.SetString("install_time", base::TimeFormatShortDate(install_time));
+
+  web_ui()->CallJavascriptFunction(
+      "extension_info.handleExtensionInfo", result);
+}