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      1 // Copyright 2013 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_APPS_EPHEMERAL_APP_LAUNCHER_H_
      6 #define CHROME_BROWSER_APPS_EPHEMERAL_APP_LAUNCHER_H_
      7 
      8 #include <string>
      9 
     10 #include "base/basictypes.h"
     11 #include "base/scoped_observer.h"
     12 #include "chrome/browser/extensions/webstore_standalone_installer.h"
     13 #include "chrome/browser/ui/extensions/extension_enable_flow_delegate.h"
     14 #include "content/public/browser/web_contents_observer.h"
     15 
     16 class ExtensionEnableFlow;
     17 class Profile;
     18 
     19 namespace content {
     20 class WebContents;
     21 }
     22 
     23 namespace extensions {
     24 class Extension;
     25 class ExtensionRegistry;
     26 }
     27 
     28 // EphemeralAppLauncher manages the launching of ephemeral apps. It handles
     29 // display of a prompt, initiates install of the app (if necessary) and finally
     30 // launches the app.
     31 class EphemeralAppLauncher : public extensions::WebstoreStandaloneInstaller,
     32                              public content::WebContentsObserver,
     33                              public ExtensionEnableFlowDelegate {
     34  public:
     35   typedef WebstoreStandaloneInstaller::Callback Callback;
     36 
     37   // Create for the app launcher.
     38   static scoped_refptr<EphemeralAppLauncher> CreateForLauncher(
     39       const std::string& webstore_item_id,
     40       Profile* profile,
     41       gfx::NativeWindow parent_window,
     42       const Callback& callback);
     43 
     44   // Create for a link within a browser tab.
     45   static scoped_refptr<EphemeralAppLauncher> CreateForLink(
     46       const std::string& webstore_item_id,
     47       content::WebContents* web_contents);
     48 
     49   // Initiate app launch.
     50   void Start();
     51 
     52  private:
     53   friend class base::RefCountedThreadSafe<EphemeralAppLauncher>;
     54 
     55   EphemeralAppLauncher(const std::string& webstore_item_id,
     56                        Profile* profile,
     57                        gfx::NativeWindow parent_window,
     58                        const Callback& callback);
     59   EphemeralAppLauncher(const std::string& webstore_item_id,
     60                        content::WebContents* web_contents,
     61                        const Callback& callback);
     62 
     63   virtual ~EphemeralAppLauncher();
     64 
     65   void LaunchApp(const extensions::Extension* extension) const;
     66 
     67   // WebstoreStandaloneInstaller implementation.
     68   virtual bool CheckRequestorAlive() const OVERRIDE;
     69   virtual const GURL& GetRequestorURL() const OVERRIDE;
     70   virtual bool ShouldShowPostInstallUI() const OVERRIDE;
     71   virtual bool ShouldShowAppInstalledBubble() const OVERRIDE;
     72   virtual content::WebContents* GetWebContents() const OVERRIDE;
     73   virtual scoped_refptr<ExtensionInstallPrompt::Prompt> CreateInstallPrompt()
     74       const OVERRIDE;
     75   virtual bool CheckInlineInstallPermitted(
     76       const base::DictionaryValue& webstore_data,
     77       std::string* error) const OVERRIDE;
     78   virtual bool CheckRequestorPermitted(
     79       const base::DictionaryValue& webstore_data,
     80       std::string* error) const OVERRIDE;
     81   virtual bool CheckInstallValid(
     82       const base::DictionaryValue& manifest,
     83       std::string* error) OVERRIDE;
     84   virtual scoped_ptr<ExtensionInstallPrompt> CreateInstallUI() OVERRIDE;
     85   virtual scoped_ptr<extensions::WebstoreInstaller::Approval>
     86       CreateApproval() const OVERRIDE;
     87   virtual void CompleteInstall(const std::string& error) OVERRIDE;
     88 
     89   // content::WebContentsObserver implementation.
     90   virtual void WebContentsDestroyed() OVERRIDE;
     91 
     92   // ExtensionEnableFlowDelegate implementation.
     93   virtual void ExtensionEnableFlowFinished() OVERRIDE;
     94   virtual void ExtensionEnableFlowAborted(bool user_initiated) OVERRIDE;
     95 
     96   gfx::NativeWindow parent_window_;
     97   scoped_ptr<content::WebContents> dummy_web_contents_;
     98 
     99   // Created in CheckInstallValid().
    100   scoped_refptr<extensions::Extension> extension_;
    101 
    102   scoped_ptr<ExtensionEnableFlow> extension_enable_flow_;
    103 
    104   DISALLOW_COPY_AND_ASSIGN(EphemeralAppLauncher);
    105 };
    106 
    107 #endif  // CHROME_BROWSER_APPS_EPHEMERAL_APP_LAUNCHER_H_
    108