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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 #include "chrome/browser/ui/ash/launcher/launcher_app_tab_helper.h"
      6 
      7 #include <vector>
      8 
      9 #include "chrome/browser/browser_process.h"
     10 #include "chrome/browser/extensions/extension_service.h"
     11 #include "chrome/browser/extensions/extension_util.h"
     12 #include "chrome/browser/profiles/profile.h"
     13 #include "chrome/browser/profiles/profile_manager.h"
     14 #include "chrome/browser/ui/browser_finder.h"
     15 #include "chrome/browser/web_applications/web_app.h"
     16 #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
     17 #include "content/public/browser/navigation_entry.h"
     18 #include "content/public/browser/web_contents.h"
     19 #include "extensions/browser/extension_registry.h"
     20 #include "extensions/browser/extension_system.h"
     21 #include "extensions/common/extension.h"
     22 #include "extensions/common/extension_set.h"
     23 
     24 namespace {
     25 
     26 const extensions::Extension* GetExtensionForTab(Profile* profile,
     27                                                 content::WebContents* tab) {
     28   ExtensionService* extension_service =
     29       extensions::ExtensionSystem::Get(profile)->extension_service();
     30   if (!extension_service || !extension_service->extensions_enabled())
     31     return NULL;
     32 
     33   // Note: It is possible to come here after a tab got removed form the browser
     34   // before it gets destroyed, in which case there is no browser.
     35   Browser* browser = chrome::FindBrowserWithWebContents(tab);
     36 
     37   extensions::ExtensionRegistry* registry =
     38       extensions::ExtensionRegistry::Get(profile);
     39 
     40   // Use the Browser's app name to determine the extension for app windows and
     41   // use the tab's url for app tabs.
     42   if (browser && browser->is_app()) {
     43     return registry->GetExtensionById(
     44         web_app::GetExtensionIdFromApplicationName(browser->app_name()),
     45         extensions::ExtensionRegistry::EVERYTHING);
     46   }
     47 
     48   const GURL url = tab->GetURL();
     49   const extensions::ExtensionSet& extensions = registry->enabled_extensions();
     50   const extensions::Extension* extension = extensions.GetAppByURL(url);
     51   if (extension)
     52     return extension;
     53 
     54   // Bookmark app windows should match their launch url extension despite
     55   // their web extents.
     56   if (extensions::util::IsStreamlinedHostedAppsEnabled()) {
     57     for (extensions::ExtensionSet::const_iterator it = extensions.begin();
     58          it != extensions.end(); ++it) {
     59       if (it->get()->from_bookmark() &&
     60           extensions::AppLaunchInfo::GetLaunchWebURL(it->get()) == url) {
     61         return it->get();
     62       }
     63     }
     64   }
     65   return NULL;
     66 }
     67 
     68 const extensions::Extension* GetExtensionByID(Profile* profile,
     69                                               const std::string& id) {
     70   return extensions::ExtensionRegistry::Get(profile)->GetExtensionById(
     71       id, extensions::ExtensionRegistry::EVERYTHING);
     72 }
     73 
     74 }  // namespace
     75 
     76 LauncherAppTabHelper::LauncherAppTabHelper(Profile* profile)
     77     : profile_(profile) {
     78 }
     79 
     80 LauncherAppTabHelper::~LauncherAppTabHelper() {
     81 }
     82 
     83 std::string LauncherAppTabHelper::GetAppID(content::WebContents* tab) {
     84   ProfileManager* profile_manager = g_browser_process->profile_manager();
     85   if (profile_manager) {
     86     const std::vector<Profile*> profile_list =
     87         profile_manager->GetLoadedProfiles();
     88     if (profile_list.size() > 0) {
     89       for (std::vector<Profile*>::const_iterator it = profile_list.begin();
     90            it != profile_list.end();
     91            ++it) {
     92         const extensions::Extension* extension = GetExtensionForTab(*it, tab);
     93         if (extension)
     94           return extension->id();
     95       }
     96       return std::string();
     97     }
     98   }
     99   // If there is no profile manager we only use the known profile.
    100   const extensions::Extension* extension = GetExtensionForTab(profile_, tab);
    101   return extension ? extension->id() : std::string();
    102 }
    103 
    104 bool LauncherAppTabHelper::IsValidIDForCurrentUser(const std::string& id) {
    105   return GetExtensionByID(profile_, id) != NULL;
    106 }
    107 
    108 void LauncherAppTabHelper::SetCurrentUser(Profile* profile) {
    109   profile_ = profile;
    110 }
    111