Make the page action space show extensions with active content scripts or

chrome/browser/extensions/script_badge_controller.cc

Index: chrome/browser/extensions/script_badge_controller.cc
diff --git a/chrome/browser/extensions/script_badge_controller.cc b/chrome/browser/extensions/script_badge_controller.cc
new file mode 100644
index 0000000000000000000000000000000000000000..fe781cf820d2cdab16e14d1d3acb2cdb93dc38c4
--- /dev/null
+++ b/chrome/browser/extensions/script_badge_controller.cc
@@ -0,0 +1,129 @@
+// 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/extensions/script_badge_controller.h"
+
+#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_system.h"
+#include "chrome/common/extensions/extension.h"
+#include "chrome/common/extensions/extension_action.h"
+#include "chrome/common/extensions/extension_set.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "content/public/browser/notification_service.h"
+#include "content/public/browser/web_contents.h"
+#include "grit/theme_resources.h"
+#include "ui/base/resource/resource_bundle.h"
+
+namespace extensions {
+
+ScriptBadgeController::ScriptBadgeController(TabContentsWrapper* tab_contents)
+    : content::WebContentsObserver(tab_contents->web_contents()),
+      script_executor_(tab_contents->web_contents()),
+      tab_contents_(tab_contents) {
+}
+
+ScriptBadgeController::~ScriptBadgeController() {
+}
+
+scoped_ptr<std::vector<ExtensionAction*> >
+ScriptBadgeController::GetCurrentActions() {
+  const GURL& current_url = tab_contents_->web_contents()->GetURL();
+  const ExtensionSet* extensions = GetExtensionService()->extensions();
+
+  scoped_ptr<std::vector<ExtensionAction*> > current_actions(
+      new std::vector<ExtensionAction*>());
+  for (ExtensionSet::const_iterator it = extensions->begin();
+       it != extensions->end(); ++it) {
+    const Extension* extension = *it;
+    if (extension->HasContentScriptAtURL(current_url) ||
+        extensions_executing_scripts_.count(extension->id())) {
+      current_actions->push_back(GetScriptBadge(extension));
+    }
+  }
+  return current_actions.Pass();
+}
+
+ActionBoxController::Action ScriptBadgeController::OnClicked(
+    const std::string& extension_id, int mouse_button) {
+  const Extension* extension =
+      GetExtensionService()->extensions()->GetByID(extension_id);
+  CHECK(extension);
+
+  switch (mouse_button) {
+    case 3: // right
+      return extension->ShowConfigureContextMenus() ?
+          ACTION_SHOW_CONTEXT_MENU : ACTION_NONE;
+  }
+
+  return ACTION_NONE;
+}
+
+void ScriptBadgeController::ExecuteScript(
+    const std::string& extension_id,
+    ScriptExecutor::ScriptType script_type,
+    const std::string& code,
+    ScriptExecutor::FrameScope frame_scope,
+    UserScript::RunLocation run_at,
+    ScriptExecutor::WorldType world_type,
+    const ExecuteScriptCallback& callback) {
+  script_executor_.ExecuteScript(extension_id,
+                                 script_type,
+                                 code,
+                                 frame_scope,
+                                 run_at,
+                                 world_type,
+                                 callback);
+
+  // This tab should now show that the extension executing a script.
+  extensions_executing_scripts_.insert(extension_id);
+  content::NotificationService::current()->Notify(
+      chrome::NOTIFICATION_EXTENSION_ACTION_BOX_UPDATED,
+      content::Source<Profile>(tab_contents_->profile()),
+      content::Details<TabContentsWrapper>(tab_contents_));
+}
+
+void ScriptBadgeController::DidNavigateMainFrame(
+    const content::LoadCommittedDetails& details,
+    const content::FrameNavigateParams& params) {
+  extensions_executing_scripts_.clear();
+}
+
+ExtensionAction* ScriptBadgeController::GetScriptBadge(
+    const Extension* extension) {
+  ScriptBadgeMap::iterator existing = script_badges_.find(extension->id());
+  if (existing != script_badges_.end())
+    return existing->second.get();
+
+  linked_ptr<ExtensionAction> badge(new ExtensionAction(extension->id()));
+  badge->SetTitle(ExtensionAction::kDefaultTabId, extension->name());
+  badge->SetIsVisible(ExtensionAction::kDefaultTabId, true);
+
+  // If there are existing actions, and they have default icon paths, use those.
+  // Otherwise we'll need to use the default icon and set it for all tabs.
+  std::string default_icon_path;
+
+  if (extension->browser_action())
+    default_icon_path = extension->browser_action()->default_icon_path();
+  else if (extension->page_action())
+    default_icon_path = extension->page_action()->default_icon_path();
+
+  if (!default_icon_path.empty()) {
+    badge->set_default_icon_path(default_icon_path);
+  } else {
+    badge->SetIcon(
+        ExtensionAction::kDefaultTabId,
+        *ui::ResourceBundle::GetSharedInstance().GetImageNamed(
+            IDR_EXTENSIONS_FAVICON).ToSkBitmap());
+  }
+
+  script_badges_[extension->id()] = badge;
+  return badge.get();
+}
+
+ExtensionService* ScriptBadgeController::GetExtensionService() {
+  return ExtensionSystem::Get(tab_contents_->profile())->extension_service();
+}
+
+}  // namespace extensions