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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 #include "chrome/browser/chromeos/file_manager/app_installer.h"
      6 
      7 #include "chrome/common/extensions/webstore_install_result.h"
      8 #include "content/public/browser/web_contents.h"
      9 #include "content/public/browser/web_contents_observer.h"
     10 
     11 namespace file_manager {
     12 
     13 namespace {
     14 const char kWebContentsDestroyedError[] = "WebContents is destroyed.";
     15 }  // namespace
     16 
     17 class AppInstaller::WebContentsObserver : public content::WebContentsObserver {
     18  public:
     19   WebContentsObserver(content::WebContents* web_contents, AppInstaller* parent)
     20       : content::WebContentsObserver(web_contents),
     21         parent_(parent) {
     22   }
     23 
     24  protected:
     25   // content::WebContentsObserver implementation.
     26   virtual void WebContentsDestroyed() OVERRIDE {
     27     parent_->OnWebContentsDestroyed(web_contents());
     28   }
     29 
     30  private:
     31   AppInstaller* parent_;
     32 
     33   DISALLOW_IMPLICIT_CONSTRUCTORS(WebContentsObserver);
     34 };
     35 
     36 AppInstaller::AppInstaller(content::WebContents* web_contents,
     37                            const std::string& item_id,
     38                            Profile* profile,
     39                            bool silent_installation,
     40                            const Callback& callback)
     41     : extensions::WebstoreStandaloneInstaller(item_id, profile, callback),
     42       silent_installation_(silent_installation),
     43       callback_(callback),
     44       web_contents_(web_contents),
     45       web_contents_observer_(new WebContentsObserver(web_contents, this)) {
     46 }
     47 
     48 AppInstaller::~AppInstaller() {}
     49 
     50 bool AppInstaller::CheckRequestorAlive() const {
     51   // The tab may have gone away - cancel installation in that case.
     52   return web_contents_ != NULL;
     53 }
     54 
     55 const GURL& AppInstaller::GetRequestorURL() const {
     56   return GURL::EmptyGURL();
     57 }
     58 
     59 scoped_refptr<ExtensionInstallPrompt::Prompt>
     60 AppInstaller::CreateInstallPrompt() const {
     61   if (silent_installation_)
     62     return NULL;
     63 
     64   scoped_refptr<ExtensionInstallPrompt::Prompt> prompt(
     65       new ExtensionInstallPrompt::Prompt(
     66           ExtensionInstallPrompt::INLINE_INSTALL_PROMPT));
     67 
     68   prompt->SetWebstoreData(localized_user_count(),
     69                           show_user_count(),
     70                           average_rating(),
     71                           rating_count());
     72   return prompt;
     73 }
     74 
     75 bool AppInstaller::ShouldShowPostInstallUI() const {
     76   return false;
     77 }
     78 
     79 bool AppInstaller::ShouldShowAppInstalledBubble() const {
     80   return false;
     81 }
     82 
     83 content::WebContents* AppInstaller::GetWebContents() const {
     84   return web_contents_;
     85 }
     86 
     87 bool AppInstaller::CheckInlineInstallPermitted(
     88     const base::DictionaryValue& webstore_data,
     89     std::string* error) const {
     90   DCHECK(error != NULL);
     91   DCHECK(error->empty());
     92   return true;
     93 }
     94 
     95 bool AppInstaller::CheckRequestorPermitted(
     96     const base::DictionaryValue& webstore_data,
     97     std::string* error) const {
     98   DCHECK(error != NULL);
     99   DCHECK(error->empty());
    100   return true;
    101 }
    102 
    103 void AppInstaller::OnWebContentsDestroyed(
    104     content::WebContents* web_contents) {
    105   callback_.Run(false,
    106                 kWebContentsDestroyedError,
    107                 extensions::webstore_install::OTHER_ERROR);
    108   AbortInstall();
    109 }
    110 
    111 }  // namespace file_manager
    112