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      1 // Copyright (c) 2012 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 #ifndef CHROME_BROWSER_EXTENSIONS_SCRIPT_BUBBLE_CONTROLLER_H_
      6 #define CHROME_BROWSER_EXTENSIONS_SCRIPT_BUBBLE_CONTROLLER_H_
      7 
      8 #include <set>
      9 #include <string>
     10 
     11 #include "base/basictypes.h"
     12 #include "chrome/browser/extensions/tab_helper.h"
     13 #include "content/public/browser/web_contents_observer.h"
     14 
     15 class ExtensionService;
     16 
     17 namespace extensions {
     18 
     19 class ExtensionSystem;
     20 
     21 // Controls the script bubble in the omnibox, which displays information about
     22 // extensions which are interacting with the current tab.
     23 class ScriptBubbleController
     24     : public TabHelper::ScriptExecutionObserver,
     25       public content::WebContentsObserver {
     26  public:
     27   ScriptBubbleController(content::WebContents* web_contents,
     28                          TabHelper* tab_helper);
     29   virtual ~ScriptBubbleController();
     30 
     31   // Returns a set of extension ids for extensions running content scripts.
     32   const std::set<std::string>& extensions_running_scripts() {
     33     return extensions_running_scripts_;
     34   }
     35 
     36   // TabHelper::ScriptExecutionObserver implementation
     37   virtual void OnScriptsExecuted(
     38       const content::WebContents* web_contents,
     39       const ExecutingScriptsMap& extension_ids,
     40       int32 page_id,
     41       const GURL& on_url) OVERRIDE;
     42 
     43   // content::WebContentsObserver implementation.
     44   virtual void DidNavigateMainFrame(
     45       const content::LoadCommittedDetails& details,
     46       const content::FrameNavigateParams& params) OVERRIDE;
     47 
     48   void OnExtensionUnloaded(const std::string& extension_id);
     49 
     50  private:
     51   // Helper to get the profile of the web contents we're associated with.
     52   Profile* profile() const;
     53 
     54   // Helper to get the extension service for the profile of the web contents
     55   // we're associated with.
     56   ExtensionService* GetExtensionService() const;
     57 
     58   // Helper to update the properties of the script bubble to reflect current
     59   // internal state.
     60   void UpdateScriptBubble();
     61 
     62   // The accumulated set of extension IDs that are operating on this tab.
     63   std::set<std::string> extensions_running_scripts_;
     64 
     65   DISALLOW_COPY_AND_ASSIGN(ScriptBubbleController);
     66 };
     67 
     68 }  // namespace extensions
     69 
     70 #endif  // CHROME_BROWSER_EXTENSIONS_SCRIPT_BUBBLE_CONTROLLER_H_
     71