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      1 // Copyright 2014 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_WEBSTORE_INSTALL_WITH_PROMPT_H_
      6 #define CHROME_BROWSER_EXTENSIONS_WEBSTORE_INSTALL_WITH_PROMPT_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/memory/scoped_ptr.h"
     10 #include "chrome/browser/extensions/webstore_standalone_installer.h"
     11 #include "content/public/browser/page_navigator.h"
     12 #include "ui/gfx/native_widget_types.h"
     13 #include "url/gurl.h"
     14 
     15 namespace content {
     16 class WebContents;
     17 }
     18 
     19 namespace extensions {
     20 
     21 // Initiates the install of an extension from the webstore. Downloads and parses
     22 // metadata from the webstore, shows an install UI and starts the download once
     23 // the user confirms. No post-install UI is shown.
     24 //
     25 // Clients will be notified of success or failure via the |callback| argument
     26 // passed into the constructor.
     27 //
     28 // Clients of this class must be trusted, as verification of the requestor is
     29 // skipped. This class stubs out many WebstoreStandaloneInstaller abstract
     30 // methods and can be used as a base class.
     31 class WebstoreInstallWithPrompt : public WebstoreStandaloneInstaller,
     32                                   public content::PageNavigator {
     33  public:
     34   // Use this constructor when there is no parent window. The install dialog
     35   // will be centered on the screen.
     36   WebstoreInstallWithPrompt(const std::string& webstore_item_id,
     37                             Profile* profile,
     38                             const Callback& callback);
     39 
     40   // If this constructor is used, the parent of the install dialog will be
     41   // |parent_window|.
     42   WebstoreInstallWithPrompt(const std::string& webstore_item_id,
     43                             Profile* profile,
     44                             gfx::NativeWindow parent_window,
     45                             const Callback& callback);
     46 
     47  protected:
     48   friend class base::RefCountedThreadSafe<WebstoreInstallWithPrompt>;
     49   virtual ~WebstoreInstallWithPrompt();
     50 
     51   // extensions::WebstoreStandaloneInstaller overrides:
     52   virtual bool CheckRequestorAlive() const OVERRIDE;
     53   virtual const GURL& GetRequestorURL() const OVERRIDE;
     54   virtual bool ShouldShowPostInstallUI() const OVERRIDE;
     55   virtual bool ShouldShowAppInstalledBubble() const OVERRIDE;
     56   virtual content::WebContents* GetWebContents() const OVERRIDE;
     57   virtual scoped_refptr<ExtensionInstallPrompt::Prompt> CreateInstallPrompt()
     58       const OVERRIDE;
     59   virtual scoped_ptr<ExtensionInstallPrompt> CreateInstallUI() OVERRIDE;
     60   virtual bool CheckInlineInstallPermitted(
     61       const base::DictionaryValue& webstore_data,
     62       std::string* error) const OVERRIDE;
     63   virtual bool CheckRequestorPermitted(
     64       const base::DictionaryValue& webstore_data,
     65       std::string* error) const OVERRIDE;
     66 
     67   // content::PageNavigator overrides:
     68   virtual content::WebContents* OpenURL(
     69       const content::OpenURLParams& params) OVERRIDE;
     70 
     71  private:
     72   GURL dummy_requestor_url_;
     73 
     74   // A non-visible WebContents used to download data from the webstore.
     75   scoped_ptr<content::WebContents> dummy_web_contents_;
     76 
     77   gfx::NativeWindow parent_window_;
     78 
     79   DISALLOW_COPY_AND_ASSIGN(WebstoreInstallWithPrompt);
     80 };
     81 
     82 }  // namespace extensions
     83 
     84 #endif  // CHROME_BROWSER_EXTENSIONS_WEBSTORE_INSTALL_WITH_PROMPT_H_
     85